Wood cutter

Abstract

The invention relates to a wood cutter, comprising a housing (2) and a drive motor (3). The drive motor (3) drives a saw chain (5), which is guided in a guide groove of a guide rail (4), via a drive chain sprocket. A securing section (14) is provided on the rear end (7) of the housing (2) for receiving a first rechargeable battery pack (21) for supplying electric energy to the drive motor (3), wherein the securing section (14) is designed to receive a second rechargeable battery pack (22), and the securing section (14) is arranged on the housing (2), in particular at least on the first handle (9), such that the center of gravity (S1) of the wood cutter (1) lies in the first handle (9) when the wood cutter (1) is in a state in which the first rechargeable battery pack (21) and the second rechargeable battery pack (22) are arranged on the securing section (14).

Description

[0001] Wood cutter

[0002] The invention relates to a wood cutter.

[0003] Commercially available wood cutters comprise a housing and a drive motor arranged in the housing, whereby the drive motor drives a saw chain rotating on a guide rail.

[0004] The invention is based on the object of providing a particularly ergonomic wood cutter.

[0005] This object is achieved by a wood cutter according to claim 1.

[0006] The wood cutter according to the invention comprises a housing and a drive motor, wherein the drive motor drives a saw chain guided in a guide groove of a guide rail via a drive sprocket, wherein the guide rail is arranged at a front end of the housing and has a longitudinal plane spanned by the guide groove, wherein a fastening section for receiving a first battery pack for supplying the drive motor with electrical energy is provided at a rear end of the housing, wherein the housing comprises a first handle for supporting a hand of the operator, wherein in particular the first handle is assigned an actuating element for actuating the drive motor, wherein the fastening section is provided for receiving a second battery pack, wherein the fastening section is arranged on the housing, in particular at least on the first handle, in such a way that in a state of the wood cutter,in which the first battery pack and the second battery pack are arranged on the attachment section, a center of gravity of the brush cutter is in the first handle.,

[0007] The center of gravity of the pruner is located in the first handle, allowing the operator to grip the pruner at its center of gravity. This reduces gravity-induced tilting moments that act around the handle and would otherwise have to be compensated for by the operator. Consequently, the operator can easily hold and guide the pruner.

[0008] It is preferably provided that the guide rail has a longitudinal center axis and a transverse plane oriented orthogonally to the longitudinal plane. The longitudinal center axis preferably lies in the longitudinal plane and the transverse plane. The transverse plane preferably divides the brush cutter into an upper section, which includes the drive motor, and a lower section. The center of gravity of the brush cutter is preferably located in the lower section of the brush cutter. This gives the brush cutter a particularly low center of gravity and allows the operator to easily guide it.

[0009] Preferably, the mounting section for the battery packs in the housing is located in the lower section of the brush cutter. This allows the battery packs to be positioned in the lower section of the brush cutter when plugged into the mounting section. This allows the center of gravity to be shifted further toward the lower section.

[0010] Preferably, the drive motor has a rotational axis, wherein the rotational axis runs parallel to the longitudinal plane of the guide rail or lies in the longitudinal plane of the guide rail. This enables a slim design of the brush cutter.

[0011] It is preferably provided that the fastening section is designed such that the battery packs can be inserted into the fastening section in an insertion direction. Advantageously, the insertion direction essentially corresponds to the longitudinal direction of the first handle. When inserting the battery packs, the operator can hold the brush cutter with one hand and push the battery packs into the fastening section or pull them out with the other hand. Since the insertion direction and the longitudinal direction of the handle preferably essentially correspond, the operator can easily apply the required counterforce for inserting and pulling the battery packs.

[0012] Preferably, the fastening section is configured such that, when the first battery pack and the second battery pack are plugged into the brush cutter, a distance measured along the longitudinal center axis between a center of gravity of the first battery pack and the center of gravity of the brush cutter is greater than a distance measured along the longitudinal center axis between a center of gravity of the second battery pack and the center of gravity of the brush cutter. Accordingly, the battery packs are arranged offset from one another along the longitudinal center axis. In other words, the distance of the first battery pack from the center of gravity of the brush cutter differs from the distance of the second battery pack from the center of gravity of the brush cutter.

[0013] It is advantageous that the fastening section is designed such that, when the first battery pack and the second battery pack are plugged into the brush cutter, a distance measured perpendicular to the transverse plane between the center of gravity of the first battery pack and the center of gravity of the brush cutter is smaller than a distance measured perpendicular to the transverse plane between the center of gravity of the second battery pack and the center of gravity of the brush cutter. Accordingly, the battery packs are offset from one another in terms of height, i.e., in the direction perpendicular to the transverse plane.

[0014] Particularly preferably, the actuating element is arranged on the first handle. The actuating element is preferably designed as a lever pivotable about a first pivot axis, wherein the actuating element has an outer contour with a maximum first radius with respect to the first pivot axis, wherein the first radius is greater than the distance between the center of gravity of the brush cutter and the first pivot axis. Preferably, the distance between the actuating element and the center of gravity of the brush cutter is no greater than 3 cm, preferably no greater than 2 cm. Thus, the center of gravity of the brush cutter is particularly close to the actuating element. During normal operation of the brush cutter, the actuating element is actuated by means of the operator's index finger. Accordingly, the operator grips the handle with his index finger close to the center of gravity of the brush cutter.By clasping the center of gravity of the brush cutter with the thumb and index finger, the operator can handle the brush cutter particularly ergonomically.

[0015] Preferably, the housing has a longitudinal center plane running parallel to the longitudinal plane, with the longitudinal center plane intersecting the housing centrally, with the center of gravity of the brush cutter lying almost in the longitudinal center plane, particularly preferably in the longitudinal center plane of the housing. Thus, no lateral tilting moments arise that would require compensation by the operator.

[0016] It is preferably provided that the housing comprises a second handle for supporting another hand of the operator, and wherein the center of gravity of the brush cutter is formed between the second handle and the actuating element associated with the first handle. Preferably, the center of gravity of the brush cutter is formed between the second handle and the actuating element, relative to a direction perpendicular to the transverse plane of the guide rail.

[0017] The brush cutter particularly preferably has a fastening device. The fastening device preferably has at least one first fastening element for holding the brush cutter to the first fastening element. The fastening device is arranged in particular on the handle housing. The operator can use the fastening device to fasten the brush cutter to a carrying device or the like. The brush cutter can be fastened via the at least one first fastening element, for example, to a rope which is hooked at the other end, for example, to a carrying device of the operator. If the operator accidentally drops the brush cutter, the carrying device can be held by the rope. The first fastening element is preferably designed as an eyelet.

[0018] The fastening device preferably has a second fastening element for holding the brush cutter to the second fastening element. The second fastening element can be used analogously to the first fastening element. The second fastening element is designed, in particular, as an eyelet.

[0019] It is advantageously provided that the housing has a first longitudinal outer side and a second longitudinal outer side. The longitudinal outer sides are preferably arranged opposite one another with respect to a plane aligned parallel to the longitudinal plane of the guide rail. The first fastening element is preferably arranged on the first longitudinal outer side. The second fastening element is preferably arranged on the second longitudinal outer side.

[0020] It is preferably provided that the fastening device is arranged in the fastening section of the housing. The fastening section is in particular part of the handle housing. Thus, the fastening device is located closer to the rear end of the brush cutter, whereby the brush cutter, suspended from the fastening device, is aligned with the guide rail facing the ground.

[0021] The fastening device is preferably arranged in an outer direction between the first battery pack and the second battery pack in a state in which the first battery pack and the second battery pack are inserted into the brush cutter.

[0022] The fastening device preferably comprises a base body. The fastening device, in particular the base body of the fastening device, is preferably formed in one piece. The base body is preferably flat. The one-piece design of the fastening device allows for high forces to be transmitted to the housing. Furthermore, the fastening device is simple in design and can be manufactured cost-effectively.

[0023] The housing preferably comprises a first housing half and a second housing half, wherein the fastening device is held, in particular in a form-fitting manner, between the first housing half and the second housing half. This allows for easy assembly of the brush cutter with respect to the fastening device.

[0024] It is advantageously provided that the base body extends in a longitudinal direction, wherein a fastening element is formed on at least one of the longitudinal ends of the base body. Particularly preferably, a fastening element is formed on each of the longitudinal ends of the base body. Advantageously, adjacent to the fastening device, the first housing half and the second housing half are connected to one another via a mechanical connection. The mechanical connection is preferably designed as a screw connection. In an alternative embodiment of the brush cutter, it may also be expedient to provide other mechanical connections, for example snap connections, rivet connections or similar. As a result, the forces transmitted from the fastening device to the housing halves can be supported by the mechanical connection, in particular by the screw connection. The fastening device can therefore absorb high loads.

[0025] It is particularly preferred that the fastening device is arranged between the center of gravity of the brush cutter and the rear end of the housing. The fastening device is preferably arranged between the center of gravity of the brush cutter and the rear end of the housing with respect to a longitudinal direction of the first handle. If the brush cutter is hanging from its fastening device, the brush cutter will align itself due to gravity in such a way that the center of gravity of the brush cutter lies below the fastening device. This also aligns the guide rail, which is arranged at the front end of the housing, towards the ground. Firstly, this orientation of the brush cutter enables the operator to easily grip the first handle of the brush cutter from above.If the operator wants to resume work with the pruner, there's no need to change their hands. Another advantage, especially when pruning trees, is that the pruner aligns itself while suspended from the mounting bracket with the guide bar pointing toward the ground. If the operator pulls the pruner upwards, the pruner and its saw chain are less likely to get caught on the tree branches.

[0026] It is advantageously provided that the first handle comprises a first grip section for resting a hand of the operator, wherein the grip section has an upper side and an underside facing away from the upper side. The housing preferably comprises a cover bracket. The cover bracket preferably extends from its first end to its second end along the underside of the first handle section. Particularly preferably, the cover bracket extends substantially parallel to the underside of the first handle section. The cover bracket preferably has a taper in the direction of its second end. The operator can, for example, use a carabiner or other fastening means to attach the pruning shears to the taper, for example to a carrying device of the operator.

[0027] The first end of the cover bracket preferably adjoins a motor housing of the housing and / or a central housing of the housing.

[0028] The cover bracket preferably has a maximum width measured perpendicular to the longitudinal plane spanned by the guide groove of the guide rail. The longitudinal plane is preferably located exactly centrally in the guide groove of the guide rail. The cover bracket has a minimum width, particularly at its taper, measured perpendicular to the longitudinal plane spanned by the guide groove of the guide rail. The minimum width at the taper corresponds in particular to at most 70%, preferably at most 60%, advantageously approximately 50% of the maximum width of the cover bracket. Particularly preferably, the minimum width of the cover bracket at the taper corresponds to at least 10%, preferably at least 20%, particularly preferably at least 30%, preferably at least 40% of the maximum width of the cover bracket. Due to this design of the cover bracket, the cover bracket is narrow enough at its taper to enclose the taper with a fastening means.Nevertheless, the cross-section of the cover bracket at its taper is still sufficiently large to stiffen the housing.

[0029] It is advantageous to provide a locking lever for locking and releasing the actuating element. The locking lever preferably has an outer contour that extends over a width perpendicular to the longitudinal plane of the guide rail, wherein the width is in particular smaller than the maximum width of the cover bracket. Particularly preferably, the cover bracket extends from a first longitudinal side to a second longitudinal side. Preferably, the outer contour of the locking lever is arranged in the direction perpendicular to the longitudinal plane of the guide rail completely between the first longitudinal side and the second longitudinal side of the cover bracket, at least in the region of the first end of the cover bracket. The actuating element is preferably arranged between the first handle section and the cover bracket. Thus, the actuating element is at least partially located behind the cover bracket.

[0030] It is advantageously provided that the cover bracket has an upper side facing the underside of the first handle from the cut. The housing preferably comprises a web, wherein the web extends from the upper side of the cover bracket to the underside of the handle section. The web has a stiffening effect on the housing of the brush cutter. The actuating element is preferably arranged between the web and the first end of the cover bracket. The tapered portion of the cover bracket is preferably arranged between the web and the second end of the cover bracket. The second end of the cover bracket opens into the fastening section of the housing.

[0031] It is advantageously provided that a protective device for protecting the battery packs is provided on the fastening section, wherein the battery packs each extend in their longitudinal direction from a first end face to a second end face, wherein the first end face of the battery pack faces the fastening device and the second end face of the battery pack faces away from the fastening device, wherein the protective device comprises at least a first cover element, wherein the first cover element extends in the longitudinal direction of the first battery pack at least as far as the second end face of the first battery pack. The first cover element protects the first battery pack from impact loads, for example when the brush cutter falls to the ground. Damage to the first battery pack can thus be avoided.

[0032] The protective device comprises at least one second cover element. The second cover element preferably extends in the longitudinal direction of the second battery pack, at least as far as the second end face of the second battery pack. Thus, the second cover element protects the second battery pack from impact loads, for example, if the brush cutter falls to the ground. Damage to the second battery pack can thus be avoided.

[0033] It is advantageously provided that the battery packs are each inserted into the fastening device in their longitudinal direction. Particularly preferably, the battery packs are inserted into the fastening device, wherein the first battery pack and the second battery pack each have a longitudinal axis running in the longitudinal direction of the respective battery pack. The longitudinal axes of the battery packs are aligned in particular parallel to the longitudinal center plane of the housing. The longitudinal axes of the battery packs can preferably also run at an angle to one another. The longitudinal axes of the battery packs particularly preferably lie in the longitudinal center plane of the housing. In a transverse direction, the battery packs are preferably arranged one above the other. The transverse direction is advantageously aligned perpendicular to the longitudinal direction of the first battery pack and / or to the longitudinal direction of the second battery pack. The transverse direction preferably lies in a plane that is aligned parallel to the longitudinal center plane of the housing.Accordingly, the battery packs are positioned one above the other in a top view of the brush cutter, which allows for a particularly slim design of the brush cutter.

[0034] It is advantageously provided that the battery packs are arranged offset from one another in their longitudinal direction, and that the second end faces of the battery packs lie in different planes. Accordingly, the battery packs are arranged offset from one another in the longitudinal direction. Preferably, the battery packs are arranged at least overlapping one another in the longitudinal direction. The planes of the end faces of the first battery pack and the second battery pack preferably run parallel to one another.

[0035] The protective device advantageously comprises at least a third cover element. The protective device preferably comprises at least a fourth cover element. The third cover element preferably extends in the longitudinal direction of the battery packs, at least as far as the second end face of the battery packs. The fourth cover element preferably extends in the longitudinal direction of the battery packs, at least as far as the second end face of the battery packs. Particularly advantageously, the third cover element and the fourth cover element extend in the longitudinal direction of the battery packs at least as far as the second end face of the battery packs. As a result, the battery packs, when plugged in, are also protected from impact loads by the third cover element and the fourth cover element.

[0036] The battery packs preferably each have a substantially triangular cross-sectional contour with rounded corners. The battery packs are preferably of identical construction. The battery packs preferably each have a back wall formed between two rounded corners. The battery packs are arranged relative to one another in the fastening section such that the back walls of the battery packs lie opposite one another. In the direction of view of the longitudinal axes of the battery packs and / or the insertion direction of the battery packs, a contour encompassing the battery packs has a diamond-shaped geometry. This arrangement results in a slim design of the implement at its rear end. Advantageously, the first cover element is arranged on a rounded corner of the first battery pack facing away from the second battery pack. The second cover element is preferably arranged on a rounded corner of the second battery pack facing away from the first battery pack.As a result, the first cover element and the second cover element at least partially encompass the battery packs together, whereby the first cover element also increases the robustness of the second battery pack and the second cover element also increases the robustness of the first battery pack.

[0037] Particularly preferably, the third cover element and the fourth cover element are arranged transversely between the battery packs. The third cover element and the fourth cover element are configured opposite one another with respect to a plane aligned parallel to the longitudinal plane of the guide rail. Thus, the third cover element and the fourth cover element provide lateral protection for the battery packs.

[0038] The protective device preferably has recesses between the cover elements for gripping the battery packs. The operator can thus reach into the recesses and pull the battery packs out of the mounting section. The locking elements of the battery packs are preferably arranged in the recesses, allowing the user to activate the release mechanism and then remove the battery from the device.

[0039] It is preferred that movement gaps be provided between the cover elements and the battery packs. The movement gaps preferably taper toward the first end face of the battery packs. If an impact load is applied to one of the cover elements, it deforms elastically, whereby the impact energy is largely dissipated by the deformation of the cover element, thus preventing damage to the battery packs.

[0040] The third cover element and / or the fourth cover element preferably have an outer side facing away from the battery packs, wherein the outer side has a concave curve that protrudes between the battery packs. As a result, the third cover element and / or the fourth cover element extend close to the outer contour of the battery packs, thereby improving the protection of the battery packs.

[0041] It is advantageously provided that the housing comprises a second handle with a second handle section for supporting the other hand of the operator, wherein a limiting device is provided between the second handle section and the guide rail, wherein the limiting device has an elevation extending at least within the longitudinal plane opposite the second handle section, wherein the elevation is designed such that slipping from the second handle section in the direction of the guide rail is prevented. This ensures that the operator of the brush cutter has a firm hold on the second handle of the brush cutter with his other hand. This allows the operator to guide the brush cutter precisely and also carry out delicate work on the brushwood.

[0042] The elevation is preferably designed such that the elevation forms a positive stop for an operator's hand resting on the second handle section in the direction of the guide rail. This can be particularly advantageous when piercing branches with the tool. While the main load on the first handle is borne by one of the operator's hands, force can additionally be exerted by the operator's other hand via the positive stop, particularly during piercing. Viewed perpendicular to the longitudinal plane, the limiting device preferably has an outer contour. The outer contour of the limiting device has, in particular, a first end adjoining the second handle section and a second end adjacent to the guide rail. The elevation of the limiting device is particularly preferably formed at the first end of the outer contour.Accordingly, the raised portion is directly adjacent to the second handle section. Because the raised portion is directly adjacent to the second handle section, the operator can place the palm of his other hand on the second handle section of the pruner and simultaneously place the side of his hand, i.e., the side of his little finger, against the raised portion. The other hand thus sits firmly on the second handle of the pruner.

[0043] It is advantageous for the raised portion to have a concave contact section adjacent to the second grip section. This contact section forms an undercut for the operator's hand resting against the contact section. Thus, the operator's other hand firmly forms itself into the undercut of the handle when resting on the second grip.

[0044] It is particularly provided that the elevation has a height measured perpendicular to the second handle section at the first end of the outer contour in the viewing direction perpendicular to the longitudinal plane, wherein the height corresponds to at least 15%, in particular at least 20%, preferably approximately 25% of a length of the second handle section measured in the longitudinal direction of the second handle section.

[0045] Preferably, the housing comprises a lubricant tank for supplying the saw chain with lubricant, with the limiting device at least partially enclosing the lubricant tank. Particularly preferably, the housing is open at the top in the area of ​​the second handle starting at the cut. This allows the operator to grip and release the second handle starting at the cut.

[0046] Preferably, the contact section is provided with an anti-slip coating. This provides the operator with a better grip on the second handle section, allowing for precise work with the pruner.

[0047] The invention is further based on the object of providing a wood cutter which enables easy handling of the wood cutter.

[0048] This object is achieved by a wood cutter according to claim 15.

[0049] The wood cutter according to the invention comprises a housing and a drive motor, wherein a fastening section for receiving a first battery pack for supplying the drive motor with electrical energy is provided at a rear end of the housing, wherein the housing comprises a handle housing with a first handle for supporting a hand of the operator, wherein the first handle is assigned an actuating element for actuating the drive motor, wherein the wood cutter has a fastening device, wherein the fastening device has at least one first fastening element for holding the wood cutter on the first fastening element, and wherein the fastening device is arranged on the handle housing.

[0050] The operator can use the fastening device to attach the pruner to a carrying device or the like. The pruner can be attached, for example, to a rope via the at least one first fastening element, which is hooked at the other end to a carrying device of the operator, for example. If the operator accidentally drops the pruner, the operator can hold it in place via the rope. The first fastening element is preferably designed as an eyelet.

[0051] The fastening device preferably has a second fastening element for holding the brush cutter to the second fastening element. The second fastening element can be used analogously to the first fastening element. The second fastening element is designed, in particular, as an eyelet.

[0052] It is advantageously provided that the wood cutter comprises a guide rail with a guide groove and a saw chain rotating in the guide groove, wherein the guide rail has a longitudinal plane spanned by the guide groove, and wherein the housing has a first longitudinal outer side and a second longitudinal outer side. The longitudinal outer sides are preferably arranged opposite one another with respect to a plane aligned parallel to the longitudinal plane of the guide rail. The first fastening element is preferably arranged on the first longitudinal outer side. The second fastening element is preferably arranged on the second longitudinal outer side.

[0053] It is preferably provided that the fastening device is arranged in the fastening section of the housing. The fastening section is in particular part of the handle housing. Thus, the fastening device is located closer to the rear end of the brush cutter, whereby the brush cutter, suspended from the fastening device, is aligned with the guide rail facing the ground.

[0054] The fastening section is preferably provided for receiving a second battery pack. The fastening device is preferably arranged in a direction between the first battery pack and the second battery pack when the first battery pack and the second battery pack are inserted into the pruning saw. The fastening device preferably comprises a base body. The fastening device, in particular the base body of the fastening device, is preferably designed as a single piece. The base body is preferably flat. The single-piece design of the fastening device preferably allows high forces to be transmitted to the housing. Secondly, the fastening device is therefore simple in design and can be manufactured cost-effectively.

[0055] The housing preferably comprises a first housing half and a second housing half, wherein the fastening device is held, in particular in a form-fitting manner, between the first housing half and the second housing half. This allows for easy assembly of the brush cutter with respect to the fastening device.

[0056] It is advantageously provided that the base body extends in a longitudinal direction, wherein a fastening element is formed on at least one of the longitudinal ends of the base body. Particularly preferably, a fastening element is formed on each of the longitudinal ends of the base body. Advantageously, adjacent to the fastening device, the first housing half and the second housing half are connected to one another via a mechanical connection. The mechanical connection is preferably designed as a screw connection. In an alternative embodiment of the brush cutter, it may also be expedient to provide other mechanical connections, for example snap connections, rivet connections or similar. As a result, the forces transmitted from the fastening device to the housing halves can be supported by the mechanical connection, in particular by the screw connection. The fastening device can therefore absorb high loads.

[0057] The brush cutter preferably has a center of gravity when the first battery pack and the second battery pack are inserted. It is particularly preferred that the fastening device is arranged between the center of gravity of the brush cutter and the rear end of the housing. The fastening device is preferably arranged between the center of gravity of the brush cutter and the rear end of the housing with respect to a longitudinal direction of the first handle. If the brush cutter is hanging from its fastening device, the brush cutter will align itself under the force of gravity such that the center of gravity of the brush cutter lies below the fastening device. The guide rail, which is arranged at the front end of the housing, is therefore also aligned towards the ground.Firstly, this orientation of the pruner allows the operator to easily grasp the first handle from above. If the operator wishes to resume work with the pruner, there is no need to change their grip on the pruner. Secondly, it is particularly advantageous, especially when pruning trees, that the pruner is suspended from the mounting bracket and aligned with the guide bar pointing towards the ground. If the operator pulls the pruner upwards, the pruner and its saw chain are less likely to catch on the tree branches.

[0058] The guide rail is arranged, in particular, at a front end of the housing. Particularly preferably, the fastening section is arranged on the housing, in particular at least on the first handle, in such a way that, in a state of the brush cutter in which the first battery pack and the second battery pack are arranged on the fastening section, a center of gravity of the brush cutter lies in the first handle.

[0059] The center of gravity of the brush cutter is located in the first handle of the brush cutter, allowing the user to grip the brush cutter at its center of gravity. This reduces tilting moments caused by gravity that act around the handle and would have to be compensated for by the operator. Consequently, the operator can easily hold and guide the brush cutter. The guide rail is preferably provided with a longitudinal center axis and a transverse plane aligned orthogonally to the longitudinal plane. The longitudinal center axis preferably lies in the longitudinal plane and in the transverse plane. The transverse plane preferably divides the brush cutter into an upper section containing the drive motor and a lower section. The center of gravity of the brush cutter is preferably located in the lower section of the brush cutter. This gives the brush cutter a particularly low center of gravity and makes it easy for the operator to guide it.

[0060] Preferably, the mounting section for the battery packs in the housing is located in the lower section of the brush cutter. This allows the battery packs to be positioned in the lower section of the brush cutter when plugged into the mounting section. This allows the center of gravity to be shifted further toward the lower section.

[0061] Preferably, the drive motor has a rotational axis, wherein the rotational axis runs parallel to the longitudinal plane of the guide rail or lies in the longitudinal plane of the guide rail. This enables a slim design of the brush cutter.

[0062] It is preferably provided that the fastening section is designed such that the battery packs can be inserted into the fastening section in an insertion direction. Advantageously, the insertion direction essentially corresponds to the longitudinal direction of the first handle. When inserting the battery packs, the operator can hold the brush cutter with one hand and push the battery packs into the fastening section or pull them out with the other hand. Since the insertion direction and the longitudinal direction of the handle preferably essentially correspond, the operator can easily apply the required counterforce for inserting and pulling the battery packs.Preferably, the fastening section is designed such that, when the first battery pack and the second battery pack are plugged into the tree pruner, a distance measured in the direction of the longitudinal center axis between a center of gravity of the first battery pack and the center of gravity of the tree pruner is greater than a distance measured in the longitudinal direction between a center of gravity of the second battery pack and the center of gravity of the tree pruner. Accordingly, the battery packs are arranged offset from one another in the direction of the longitudinal center axis. In other words, the distance of the first battery pack from the center of gravity of the tree pruner differs from the distance of the second battery pack from the center of gravity of the tree pruner.

[0063] It is advantageous that the fastening section is designed such that, when the first battery pack and the second battery pack are plugged into the brush cutter, a distance measured perpendicular to the transverse plane between the center of gravity of the first battery pack and the center of gravity of the brush cutter is smaller than a distance measured perpendicular to the transverse plane between the center of gravity of the second battery pack and the center of gravity of the brush cutter. Accordingly, the battery packs are offset from one another in terms of height, i.e., in the direction perpendicular to the transverse plane.

[0064] The actuating element is particularly preferably arranged on the first handle. The actuating element is preferably designed as a lever pivotable about a first pivot axis, wherein the actuating element has an outer contour with a maximum first radius with respect to the first pivot axis, wherein the first radius is greater than the distance between the center of gravity of the brush cutter and the first pivot axis. The distance between the actuating element and the center of gravity of the brush cutter is preferably no greater than 3 cm, preferably no greater than 2 cm. The center of gravity of the brush cutter is thus particularly close to the actuating element. During normal operation of the brush cutter, the actuating element is actuated by means of the operator's index finger. Accordingly, the operator grips the handle with his index finger close to the center of gravity of the brush cutter.By clasping the center of gravity of the brush cutter with the thumb and index finger, the operator can handle the brush cutter particularly ergonomically.

[0065] Preferably, the housing has a longitudinal center plane running parallel to the longitudinal plane, with the longitudinal center plane intersecting the housing centrally, with the center of gravity of the brush cutter lying almost in the longitudinal center plane, particularly preferably in the longitudinal center plane of the housing. Thus, no lateral tilting moments arise that would require compensation by the operator.

[0066] It is preferably provided that the housing comprises a second handle for supporting another hand of the operator, and wherein the center of gravity of the brush cutter is formed between the second handle and the actuating element associated with the first handle. Preferably, the center of gravity of the brush cutter is formed between the second handle and the actuating element, relative to a direction perpendicular to the transverse plane of the guide rail.

[0067] It is advantageously provided that the first handle comprises a first grip section for resting a hand of the operator, wherein the grip section has an upper side and an underside facing away from the upper side. The housing preferably comprises a cover bracket. The cover bracket preferably extends from its first end to its second end along the underside of the first handle section. Particularly preferably, the cover bracket extends substantially parallel to the underside of the first handle section. The cover bracket preferably has a taper in the direction of its second end. The operator can, for example, use a carabiner or other fastening means to attach the brush cutter to the taper, for example to a carrying device of the operator. The first end of the cover bracket preferably borders on a motor housing of the housing and / or on a central housing of the housing.

[0068] The cover bracket preferably has a maximum width measured perpendicular to the longitudinal plane spanned by the guide groove of the guide rail. The longitudinal plane is preferably located exactly centrally in the guide groove of the guide rail. The cover bracket has a minimum width, particularly at its taper, measured perpendicular to the longitudinal plane spanned by the guide groove of the guide rail. The minimum width at the taper corresponds in particular to at most 70%, preferably at most 60%, advantageously approximately 50% of the maximum width of the cover bracket. Particularly preferably, the minimum width of the cover bracket at the taper corresponds to at least 10%, preferably at least 20%, particularly preferably at least 30%, preferably at least 40% of the maximum width of the cover bracket. Due to this design of the cover bracket, the cover bracket is narrow enough at its taper to enclose the taper with a fastening means.Nevertheless, the cross-section of the cover bracket at its taper is still sufficiently large to stiffen the housing.

[0069] It is advantageous to provide a locking lever for locking and releasing the actuating element. The locking lever preferably has an outer contour that extends over a width perpendicular to the longitudinal plane of the guide rail, wherein the width is in particular smaller than the maximum width of the cover bracket. Particularly preferably, the cover bracket extends from a first longitudinal side to a second longitudinal side. Preferably, the outer contour of the locking lever is arranged in the direction perpendicular to the longitudinal plane of the guide rail completely between the first longitudinal side and the second longitudinal side of the cover bracket, at least in the region of the first end of the cover bracket. The actuating element is preferably arranged between the first handle section and the cover bracket. Thus, the actuating element is at least partially located behind the cover bracket.It is advantageously provided that the cover bracket has an upper side facing the underside of the first handle. The housing preferably comprises a web, wherein the web extends from the upper side of the cover bracket to the underside of the handle. The web has a stiffening effect on the housing of the brush cutter. The actuating element is preferably arranged between the web and the first end of the cover bracket. The tapered portion of the cover bracket is preferably arranged between the web and the second end of the cover bracket. The second end of the cover bracket opens into the fastening section of the housing.

[0070] It is advantageously provided that a protective device for protecting the battery packs is provided on the fastening section, wherein the battery packs each extend in their longitudinal direction from a first end face to a second end face, wherein the first end face of the battery pack faces the fastening device and the second end face of the battery pack faces away from the fastening device, wherein the protective device comprises at least a first cover element, wherein the first cover element extends in the longitudinal direction of the first battery pack at least as far as the second end face of the first battery pack. The first cover element protects the first battery pack from impact loads, for example when the brush cutter falls to the ground. Damage to the first battery pack can thus be avoided.

[0071] The protective device comprises at least one second cover element. The second cover element preferably extends in the longitudinal direction of the second battery pack, at least as far as the second end face of the second battery pack. Thus, the second cover element protects the second battery pack from impact loads, for example, if the brush cutter falls to the ground. Damage to the second battery pack can thus be avoided.

[0072] It is advantageously provided that the battery packs are each inserted into the fastening device in their longitudinal direction. Particularly preferably, the battery packs are inserted into the fastening device, wherein the first battery pack and the second battery pack each have a longitudinal axis running in the longitudinal direction of the respective battery pack. The longitudinal axes of the battery packs are aligned in particular parallel to the longitudinal center plane of the housing. The longitudinal axes of the battery packs can preferably also run at an angle to one another. The longitudinal axes of the battery packs particularly preferably lie in the longitudinal center plane of the housing. In a transverse direction, the battery packs are preferably arranged one above the other. The transverse direction is advantageously aligned perpendicular to the longitudinal direction of the first battery pack and / or to the longitudinal direction of the second battery pack. The transverse direction preferably lies in a plane that is aligned parallel to the longitudinal center plane of the housing.Accordingly, the battery packs are positioned one above the other in a top view of the brush cutter, which allows for a particularly slim design of the brush cutter.

[0073] It is advantageously provided that the battery packs are arranged offset from one another in their longitudinal direction, and that the second end faces of the battery packs lie in different planes. Accordingly, the battery packs are arranged offset from one another in the longitudinal direction. Preferably, the battery packs are arranged at least overlapping one another in the longitudinal direction. The planes of the end faces of the first battery pack and the second battery pack preferably run parallel to one another.

[0074] The protective device advantageously comprises at least a third cover element. The protective device preferably comprises at least a fourth cover element. The third cover element preferably extends in the longitudinal direction of the battery packs, at least as far as the second end face of the battery packs. The fourth cover element preferably extends in the longitudinal direction of the battery packs, at least as far as the second end face of the battery packs. Particularly advantageously, the third cover element and the fourth cover element extend in the longitudinal direction of the battery packs at least as far as the second end face of the battery packs. As a result, the battery packs, when plugged in, are also protected from impact loads by the third cover element and the fourth cover element. The battery packs preferably each have a substantially triangular cross-sectional contour with rounded corners. The battery packs are preferably structurally identical.The battery packs preferably each have a back wall formed between two rounded corners. The battery packs are arranged in the fastening section such that the back walls of the battery packs lie opposite one another. In the direction of the longitudinal axes of the battery packs and / or the insertion direction of the battery packs, a contour encompassing the battery packs has a diamond-shaped geometry. This arrangement results in a slim design of the implement at its rear end. Advantageously, the first cover element is arranged on a rounded corner of the first battery pack facing away from the second battery pack. The second cover element is preferably arranged on a rounded corner of the second battery pack facing away from the first battery pack.As a result, the first cover element and the second cover element at least partially encompass the battery packs together, whereby the first cover element also increases the robustness of the second battery pack and the second cover element also increases the robustness of the first battery pack.

[0075] Particularly preferably, the third cover element and the fourth cover element are arranged transversely between the battery packs. The third cover element and the fourth cover element are configured opposite one another with respect to a plane aligned parallel to the longitudinal plane of the guide rail. Thus, the third cover element and the fourth cover element provide lateral protection for the battery packs.

[0076] The protective device preferably has recesses between the cover elements for gripping the battery packs. The operator can thus reach into the recesses and pull the battery packs out of the mounting section. The locking elements of the battery packs are preferably arranged in the recesses, allowing the user to activate the release mechanism and then remove the battery from the device.

[0077] It is preferred that movement gaps be provided between the cover elements and the battery packs. The movement gaps preferably taper toward the first end face of the battery packs. If an impact load is applied to one of the cover elements, it deforms elastically, whereby the impact energy is largely dissipated by the deformation of the cover element, thus preventing damage to the battery packs.

[0078] The third cover element and / or the fourth cover element preferably have an outer side facing away from the battery packs, wherein the outer side has a concave curve that protrudes between the battery packs. As a result, the third cover element and / or the fourth cover element extend close to the outer contour of the battery packs, thereby improving the protection of the battery packs.

[0079] It is advantageously provided that the housing comprises a second handle with a second handle section for supporting the other hand of the operator, wherein a limiting device is provided between the second handle section and the guide rail, wherein the limiting device has an elevation extending at least within the longitudinal plane opposite the second handle section, wherein the elevation is designed such that slipping from the second handle section in the direction of the guide rail is prevented. This ensures that the operator of the brush cutter has a firm hold on the second handle of the brush cutter with his other hand. This allows the operator to guide the brush cutter precisely and also carry out delicate work on the brushwood.

[0080] Preferably, the raised portion is designed such that it forms a positive stop for the operator's hand resting on the second handle section in the direction of the guide rail. This can be particularly advantageous when piercing branches with the tool. While the main load on the first handle is borne by one of the operator's hands, additional force can be exerted by the operator's other hand via the positive stop, particularly during piercing.

[0081] When viewed perpendicular to the longitudinal plane, the limiting device preferably has an outer contour. The outer contour of the limiting device has, in particular, a first end adjoining the second handle section and a second end adjacent to the guide rail. The elevation of the limiting device is particularly preferably formed at the first end of the outer contour. Accordingly, the elevation directly borders the second handle section of the second handle. By forming the elevation directly adjacent to the second handle section, the operator can place his other hand with the palm of his hand on the second handle section of the brush cutter and at the same time place the side of his hand, i.e. the side of his little finger, against the elevation. The other hand thus has a secure fit on the second handle of the brush cutter.

[0082] It is advantageous for the raised portion to have a concave contact section adjacent to the second grip section. The contact section forms an undercut for the operator's hand resting against the contact section. Thus, the operator's other hand firmly forms itself into the undercut of the handle when resting on the second grip.

[0083] In particular, it is provided that the elevation, viewed perpendicular to the longitudinal plane, has a height measured perpendicular to the second handle section at the first end of the outer contour, wherein the height corresponds to at least 15%, in particular at least 20%, preferably approximately 25% of a length of the second handle measured in the longitudinal direction of the second handle from the cut. Preferably, the housing comprises a lubricant tank for supplying the saw chain with lubricant, wherein the limiting device at least partially encloses the lubricant tank.

[0084] Particularly preferably, the housing is open at the top in the area of ​​the second handle section. This allows the operator to grip and release the second handle section more easily.

[0085] Preferably, the contact section is provided with an anti-slip coating. This provides the operator with a better grip on the second handle section, allowing for precise work with the pruner.

[0086] The invention is further based on the object of providing a robust wood cutter which allows easy handling when carried.

[0087] This object is achieved by a wood cutter according to claim 26.

[0088] The brush cutter according to the invention comprises a housing and a drive motor, wherein the housing comprises a first handle with a first handle section for supporting a hand of the operator, wherein an actuating element for actuating the drive motor is assigned to the first handle, and wherein the handle section has an upper side and a lower side facing away from the upper side, wherein the housing comprises a cover bracket, wherein the cover bracket extends from its first end to its second end along the underside of the first handle section. Particularly preferably, the cover bracket extends substantially parallel to the underside of the first handle section. The cover bracket has a taper towards its second end. The operator can attach the brush cutter to the taper, for example using a carabiner or other fastening means, for example to a carrying device of the operator.At the same time, the cover bracket stiffens the housing, making it robust.

[0089] The first end of the cover bracket preferably borders on a motor housing of the housing and / or on a central housing of the housing. The brush cutter preferably comprises a guide rail with a guide groove and a saw chain guided in the guide groove. The cover bracket preferably has a maximum width measured perpendicular to the longitudinal plane spanned by the guide groove of the guide rail. The longitudinal plane is preferably located exactly centrally in the guide groove of the guide rail. The cover bracket has a minimum width, in particular at its taper, measured perpendicular to the longitudinal plane spanned by the guide groove of the guide rail. The minimum width at the taper corresponds in particular to at most 70%, preferably at most 60%, advantageously approximately 50% of the maximum width of the cover bracket.Particularly preferably, the minimum width of the cover bracket at the taper corresponds to at least 10%, preferably at least 20%, particularly preferably at least 30%, and preferably at least 40% of the maximum width of the cover bracket. This design of the cover bracket makes the cover bracket narrow enough at its taper to enclose the taper with a fastening means. Nevertheless, the cross-section of the cover bracket at its taper is still sufficiently large to stiffen the housing.

[0090] It is advantageous to provide a locking lever for locking and releasing the actuating element. The locking lever preferably has an outer contour that extends over a width perpendicular to the longitudinal plane of the guide rail, wherein the width is in particular smaller than the maximum width of the cover bracket. Particularly preferably, the cover bracket extends from a first longitudinal side to a second longitudinal side. Preferably, the outer contour of the locking lever is arranged in the direction perpendicular to the longitudinal plane of the guide rail completely between the first longitudinal side and the second longitudinal side of the cover bracket, at least in the region of the first end of the cover bracket. The actuating element is preferably arranged between the first handle section and the cover bracket. Thus, the actuating element is at least partially located behind the cover bracket.

[0091] It is advantageously provided that the cover bracket has an upper side facing the underside of the first handle. The housing preferably comprises a web, wherein the web extends from the upper side of the cover bracket to the underside of the handle. The web has a stiffening effect on the housing of the brush cutter. The actuating element is preferably arranged between the web and the first end of the cover bracket. The tapered portion of the cover bracket is preferably arranged between the web and the second end of the cover bracket. The second end of the cover bracket opens into the fastening section of the housing.

[0092] It is advantageous to provide a mounting section at a rear end of the housing for receiving a first battery pack for supplying the drive motor with electrical energy. Particularly advantageously, the mounting section is provided for receiving a second battery pack. The second end of the cover bracket is preferably formed by the mounting section of the housing.

[0093] Particularly preferably, the drive motor drives the saw chain guided in the guide groove of the guide rail via a drive sprocket in a rotating manner. The guide rail is preferably arranged at a front end of the housing. The fastening section is arranged on the housing, in particular at least on the first handle, in such a way that when the brush cutter is in a state in which the first battery pack and the second battery pack are arranged on the fastening section, a center of gravity of the brush cutter lies in the first handle. The center of gravity of the brush cutter is preferably in the first handle of the brush cutter, as a result of which the user grips the brush cutter at its center of gravity. This reduces tilting moments due to gravity, which act around the handle and would have to be compensated for by the operator. Consequently, the operator can hold and guide the brush cutter easily.

[0094] It is preferably provided that the guide rail has a longitudinal center axis and a transverse plane oriented orthogonally to the longitudinal plane. The longitudinal center axis preferably lies in the longitudinal plane and the transverse plane. The transverse plane preferably divides the brush cutter into an upper section, which includes the drive motor, and a lower section. The center of gravity of the brush cutter is preferably located in the lower section of the brush cutter. This gives the brush cutter a particularly low center of gravity and allows the operator to easily guide it.

[0095] Preferably, the mounting section for the battery packs in the housing is located in the lower section of the brush cutter. This allows the battery packs to be positioned in the lower section of the brush cutter when plugged into the mounting section. This allows the center of gravity to be shifted further toward the lower section.

[0096] Preferably, the drive motor has a rotational axis, wherein the rotational axis runs parallel to the longitudinal plane of the guide rail or lies in the longitudinal plane of the guide rail. This enables a slim design of the brush cutter.

[0097] It is preferably provided that the fastening section is designed such that the battery packs can be inserted into the fastening section in an insertion direction. Advantageously, the insertion direction essentially corresponds to the longitudinal direction of the first handle. When inserting the battery packs, the operator can hold the brush cutter with one hand and push the battery packs into the fastening section or pull them out with the other hand. Since the insertion direction and the longitudinal direction of the handle preferably essentially correspond, the operator can easily apply the required counterforce for inserting and pulling the battery packs.

[0098] Preferably, the fastening section is configured such that, when the first battery pack and the second battery pack are plugged into the brush cutter, a distance measured along the longitudinal center axis between a center of gravity of the first battery pack and the center of gravity of the brush cutter is greater than a distance measured along the longitudinal center axis between a center of gravity of the second battery pack and the center of gravity of the brush cutter. Accordingly, the battery packs are arranged offset from one another along the longitudinal center axis. In other words, the distance of the first battery pack from the center of gravity of the brush cutter differs from the distance of the second battery pack from the center of gravity of the brush cutter.

[0099] It is advantageous that the fastening section is designed such that, when the first battery pack and the second battery pack are plugged into the brush cutter, a distance measured perpendicular to the transverse plane between the center of gravity of the first battery pack and the center of gravity of the brush cutter is smaller than a distance measured perpendicular to the transverse plane between the center of gravity of the second battery pack and the center of gravity of the brush cutter. Accordingly, the battery packs are offset from one another in terms of height, i.e., in the direction perpendicular to the transverse plane.

[0100] The actuating element is particularly preferably arranged on the first handle. The actuating element is preferably designed as a lever pivotable about a first pivot axis, wherein the actuating element has an outer contour with a maximum first radius with respect to the first pivot axis, wherein the first radius is greater than the distance between the center of gravity of the brush cutter and the first pivot axis. The distance between the actuating element and the center of gravity of the brush cutter is preferably no greater than 3 cm, preferably no greater than 2 cm. The center of gravity of the brush cutter is thus particularly close to the actuating element. During normal operation of the brush cutter, the actuating element is actuated by means of the operator's index finger. Accordingly, the operator grips the handle with his index finger close to the center of gravity of the brush cutter.By clasping the center of gravity of the brush cutter with the thumb and index finger, the operator can handle the brush cutter particularly ergonomically.

[0101] Preferably, the housing has a longitudinal center plane running parallel to the longitudinal plane, with the longitudinal center plane intersecting the housing centrally, with the center of gravity of the brush cutter lying almost in the longitudinal center plane, particularly preferably in the longitudinal center plane of the housing. Thus, no lateral tilting moments arise that would require compensation by the operator.

[0102] It is preferably provided that the housing comprises a second handle for supporting another hand of the operator, and wherein the center of gravity of the brush cutter is formed between the second handle and the actuating element associated with the first handle. Preferably, the center of gravity of the brush cutter is formed between the second handle and the actuating element, relative to a direction perpendicular to the transverse plane of the guide rail.

[0103] The brush cutter particularly preferably has a fastening device. The fastening device preferably has at least one first fastening element for holding the brush cutter to the first fastening element. The fastening device is arranged in particular on the handle housing. The operator can use the fastening device to fasten the brush cutter to a carrying device or the like. The brush cutter can be fastened via the at least one first fastening element, for example, to a rope which is hooked at the other end, for example, to a carrying device of the operator. If the operator accidentally drops the brush cutter, the carrying device can be held by the rope. The first fastening element is preferably designed as an eyelet.

[0104] The fastening device preferably has a second fastening element for holding the brush cutter to the second fastening element. The second fastening element can be used analogously to the first fastening element. The second fastening element is designed, in particular, as an eyelet.

[0105] It is advantageously provided that the housing has a first longitudinal outer side and a second longitudinal outer side. The longitudinal outer sides are preferably arranged opposite one another with respect to a plane aligned parallel to the longitudinal plane of the guide rail. The first fastening element is preferably arranged on the first longitudinal outer side. The second fastening element is preferably arranged on the second longitudinal outer side.

[0106] It is preferably provided that the fastening device is arranged in the fastening section of the housing. The fastening section is in particular part of the handle housing. Thus, the fastening device is located closer to the rear end of the brush cutter, whereby the brush cutter, suspended from the fastening device, is aligned with the guide rail facing the ground.

[0107] The fastening device is preferably arranged in an outer direction between the first battery pack and the second battery pack when the first battery pack and the second battery pack are inserted into the pruning shears. The fastening device preferably comprises a base body. The fastening device, in particular the base body of the fastening device, is preferably formed as a single piece. The base body is preferably flat. The single-piece design of the fastening device allows for high forces to be transmitted to the housing. Furthermore, the fastening device is therefore simple in design and can be manufactured cost-effectively.

[0108] The housing preferably comprises a first housing half and a second housing half, wherein the fastening device is held, in particular in a form-fitting manner, between the first housing half and the second housing half. This allows for easy assembly of the brush cutter with respect to the fastening device.

[0109] It is advantageously provided that the base body extends in a longitudinal direction, wherein a fastening element is formed on at least one of the longitudinal ends of the base body. Particularly preferably, a fastening element is formed on each of the longitudinal ends of the base body. Advantageously, adjacent to the fastening device, the first housing half and the second housing half are connected to one another via a mechanical connection. The mechanical connection is preferably designed as a screw connection. In an alternative embodiment of the brush cutter, it may also be expedient to provide other mechanical connections, for example snap connections, rivet connections or similar. As a result, the forces transmitted from the fastening device to the housing halves can be supported by the mechanical connection, in particular by the screw connection. The fastening device can therefore absorb high loads.

[0110] It is particularly preferred that the fastening device is arranged between the center of gravity of the brush cutter and the rear end of the housing. The fastening device is preferably arranged between the center of gravity of the brush cutter and the rear end of the housing with respect to a longitudinal direction of the first handle. If the brush cutter is hanging from its fastening device, the brush cutter will align itself due to gravity in such a way that the center of gravity of the brush cutter lies below the fastening device. This also aligns the guide rail, which is arranged at the front end of the housing, towards the ground. Firstly, this orientation of the brush cutter enables the operator to easily grip the first handle of the brush cutter from above.If the operator wants to resume work with the pruner, there's no need to change their grip on the pruner. Another advantage, especially when pruning trees, is that the pruner aligns itself while suspended from the mounting bracket with the guide bar pointing toward the ground. If the operator pulls the pruner upwards, the pruner and its saw chain are less likely to get caught on the tree branches.

[0111] It is advantageously provided that a protective device for protecting the battery packs is provided on the fastening section, wherein the battery packs each extend in their longitudinal direction from a first end face to a second end face, wherein the first end face of the battery pack faces the fastening device and the second end face of the battery pack faces away from the fastening device, wherein the protective device comprises at least a first cover element, wherein the first cover element extends in the longitudinal direction of the first battery pack at least as far as the second end face of the first battery pack. The first cover element protects the first battery pack from impact loads, for example when the brush cutter falls to the ground. Damage to the first battery pack can thus be avoided.

[0112] The protective device comprises at least one second cover element. The second cover element preferably extends in the longitudinal direction of the second battery pack, at least as far as the second end face of the second battery pack. Thus, the second cover element protects the second battery pack from impact loads, for example, if the brush cutter falls to the ground. Damage to the second battery pack can thus be avoided.

[0113] It is advantageously provided that the battery packs are each inserted into the fastening device in their longitudinal direction. Particularly preferably, the battery packs are inserted into the fastening device, wherein the first battery pack and the second battery pack each have a longitudinal axis running in the longitudinal direction of the respective battery pack. The longitudinal axes of the battery packs are aligned in particular parallel to the longitudinal center plane of the housing. The longitudinal axes of the battery packs can preferably also run at an angle to one another. The longitudinal axes of the battery packs particularly preferably lie in the longitudinal center plane of the housing. In a transverse direction, the battery packs are preferably arranged one above the other. The transverse direction is advantageously aligned perpendicular to the longitudinal direction of the first battery pack and / or to the longitudinal direction of the second battery pack. The transverse direction preferably lies in a plane that is aligned parallel to the longitudinal center plane of the housing.Accordingly, the battery packs are positioned one above the other in a top view of the brush cutter, which allows for a particularly slim design of the brush cutter.

[0114] It is advantageously provided that the battery packs are arranged offset from one another in their longitudinal direction, and that the second end faces of the battery packs lie in different planes. Accordingly, the battery packs are arranged offset from one another in the longitudinal direction. Preferably, the battery packs are arranged at least overlapping one another in the longitudinal direction. The planes of the end faces of the first battery pack and the second battery pack preferably run parallel to one another.

[0115] The protective device advantageously comprises at least a third cover element. Preferably, the protective device comprises at least a fourth cover element. The third cover element preferably extends in the longitudinal direction of the battery packs, at least as far as the second end face of the battery packs. The fourth cover element preferably extends in the longitudinal direction of the battery packs, at least as far as the second end face of the battery packs. Particularly advantageously, the third cover element and the fourth cover element extend in the longitudinal direction of the battery packs at least as far as the second end face of the battery packs. As a result, the battery packs, when plugged in, are also protected from impact loads by the third cover element and the fourth cover element.

[0116] The battery packs preferably each have a substantially triangular cross-sectional contour with rounded corners. The battery packs are preferably of identical construction. The battery packs preferably each have a back wall formed between two rounded corners. The battery packs are arranged relative to one another in the fastening section such that the back walls of the battery packs lie opposite one another. In the direction of view of the longitudinal axes of the battery packs and / or the insertion direction of the battery packs, a contour encompassing the battery packs has a diamond-shaped geometry. This arrangement results in a slim design of the implement at its rear end. Advantageously, the first cover element is arranged on a rounded corner of the first battery pack facing away from the second battery pack. The second cover element is preferably arranged on a rounded corner of the second battery pack facing away from the first battery pack.As a result, the first cover element and the second cover element at least partially encompass the battery packs together, whereby the first cover element also increases the robustness of the second battery pack and the second cover element also increases the robustness of the first battery pack.

[0117] Particularly preferably, the third cover element and the fourth cover element are arranged transversely between the battery packs. The third cover element and the fourth cover element are configured opposite one another with respect to a plane aligned parallel to the longitudinal plane of the guide rail. The third cover element and the fourth cover element thus form lateral protection for the battery packs. The protective device preferably has recesses between the cover elements for gripping the battery packs. The operator can thus reach into the recesses and pull the battery packs out of the fastening section. The locking elements of the battery packs are preferably arranged in the recesses, so that the user can actuate the release and then remove the battery from the device.

[0118] It is preferred that movement gaps be provided between the cover elements and the battery packs. The movement gaps preferably taper toward the first end face of the battery packs. If an impact load is applied to one of the cover elements, it deforms elastically, whereby the impact energy is largely dissipated by the deformation of the cover element, thus preventing damage to the battery packs.

[0119] The third cover element and / or the fourth cover element preferably have an outer side facing away from the battery packs, wherein the outer side has a concave curve that protrudes between the battery packs. As a result, the third cover element and / or the fourth cover element extend close to the outer contour of the battery packs, thereby improving the protection of the battery packs.

[0120] It is advantageously provided that the housing comprises a second handle with a second handle section for supporting the other hand of the operator, wherein a limiting device is provided between the second handle section and the guide rail, wherein the limiting device has an elevation extending at least within the longitudinal plane opposite the second handle section, wherein the elevation is designed such that slipping from the second handle section in the direction of the guide rail is prevented. This ensures that the operator of the brush cutter has a firm hold on the second handle of the brush cutter with his other hand. This allows the operator to guide the brush cutter precisely and also carry out delicate work on the brushwood.

[0121] Preferably, the raised portion is designed such that it forms a positive stop for the operator's hand resting on the second handle section in the direction of the guide rail. This can be particularly advantageous when piercing branches with the tool. While the main load on the first handle is borne by one of the operator's hands, additional force can be exerted by the operator's other hand via the positive stop, particularly during piercing.

[0122] When viewed perpendicular to the longitudinal plane, the limiting device preferably has an outer contour. The outer contour of the limiting device has, in particular, a first end adjoining the second handle section and a second end adjacent to the guide rail. The elevation of the limiting device is particularly preferably formed at the first end of the outer contour. Accordingly, the elevation borders directly on the second handle section of the second handle. By forming the elevation directly adjacent to the second handle section, the operator can place his other hand with the palm of his hand on the second handle section of the brush cutter and at the same time place the side of his hand, i.e. the side of his little finger, against the elevation. The other hand thus has a secure fit on the second handle of the brush cutter.

[0123] It is advantageously provided that the elevation has a concave contact section adjacent to the second handle section. The contact section forms an undercut for a hand of the operator resting on the contact section. Thus, when the other hand of the operator rests on the second handle, it is firmly formed into the undercut of the handle. In particular, it is provided that the elevation, viewed perpendicular to the longitudinal plane, has a height measured perpendicular to the second handle section at the first end of the outer contour, wherein the height corresponds to at least 15%, in particular at least 20%, preferably approximately 25% of a length of the second handle measured in the longitudinal direction of the second handle from the cut.

[0124] Preferably, the housing comprises a lubricant tank for supplying the saw chain with lubricant, wherein the limiting device at least partially encloses the lubricant tank.

[0125] Particularly preferably, the housing is open upwards in the area of ​​the second handle, starting at the cut. This allows the operator to grip and release the second handle section more easily.

[0126] Preferably, the installation section is provided with an anti-slip coating.

[0127] This gives the operator a better grip on the brush cutter on the second handle section, allowing the operator to work with the brush cutter with greater precision.

[0128] The invention is also based on the object of providing a particularly ergonomic wood cutter.

[0129] This object is achieved by a wood cutter according to claim 39.

[0130] The wood cutter according to the invention comprises a housing and a drive motor, wherein the drive motor drives a saw chain guided in a guide groove of a guide rail via a drive sprocket, wherein the guide rail is arranged at a front end of the housing and has a longitudinal plane spanned by the guide groove, wherein the housing comprises a first handle with a first handle portion for supporting a hand of the operator, wherein an actuating element for actuating the drive motor is assigned to the first handle, wherein the housing comprises a second handle with a second handle portion for supporting the other hand of the operator, wherein a limiting device is provided between the second handle portion and the guide rail, wherein the limiting device has an elevation extending at least within the longitudinal plane relative to the second handle portion, wherein the elevation is designed such thatthat slipping from the second handle section towards the guide rail is prevented.

[0131] This ensures that the operator of the pruner has a firm grip on the second handle with their other hand. This allows the operator to guide the pruner precisely and perform even delicate work on the shrubs. This makes the pruner particularly ergonomic to use.

[0132] Preferably, the raised portion is designed such that it forms a positive stop for the operator's hand resting on the second handle section in the direction of the guide rail. This can be particularly advantageous when piercing branches with the tool. While the main load on the first handle is borne by one of the operator's hands, additional force can be exerted by the operator's other hand via the positive stop, particularly during piercing.

[0133] When viewed perpendicular to the longitudinal plane, the limiting device preferably has an outer contour. The outer contour of the limiting device has, in particular, a first end adjoining the second handle section and a second end adjacent to the guide rail. The elevation of the limiting device is particularly preferably formed at the first end of the outer contour. Accordingly, the elevation directly borders the second handle section of the second handle. By forming the elevation directly adjacent to the second handle section, the operator can place his other hand with the palm of his hand on the second handle section of the brush cutter and at the same time place the side of his hand, i.e. the side of his little finger, against the elevation. The other hand thus has a secure fit on the second handle of the brush cutter.

[0134] It is advantageous for the raised portion to have a concave contact section adjacent to the second grip section. The contact section forms an undercut for the operator's hand resting against the contact section. Thus, the operator's other hand firmly forms itself into the undercut of the handle when resting on the second grip.

[0135] It is particularly provided that the elevation has a height measured perpendicular to the second handle section at the first end of the outer contour in the viewing direction perpendicular to the longitudinal plane, wherein the height corresponds to at least 15%, in particular at least 20%, preferably approximately 25% of a length of the second handle section measured in the longitudinal direction of the second handle section.

[0136] Preferably, the housing comprises a lubricant tank for supplying the saw chain with lubricant, wherein the limiting device at least partially encloses the lubricant tank.

[0137] Particularly preferably, the housing is open upwards in the area of ​​the second handle, starting at the cut. This allows the operator to grip and release the second handle section more easily.

[0138] The contact section is preferably provided with an anti-slip coating. This gives the operator an improved grip on the brush cutter on the second handle section, enabling the operator to work precisely with the brush cutter. Advantageously, a fastening section for receiving a first battery pack for supplying the drive motor with electrical energy is provided at a rear end of the housing. The fastening section is intended in particular for receiving a second battery pack. The fastening section is preferably arranged on the housing, in particular at least on the first handle, in such a way that, in a state of the brush cutter in which the first battery pack and the second battery pack are arranged on the fastening section, a center of gravity of the brush cutter lies in the first handle.

[0139] The center of gravity of the pruner is located in the first handle, allowing the operator to grip the pruner at its center of gravity. This reduces gravity-induced tilting moments that act around the handle and would otherwise have to be compensated for by the operator. Consequently, the operator can easily hold and guide the pruner.

[0140] It is preferably provided that the guide rail has a longitudinal center axis and a transverse plane oriented orthogonally to the longitudinal plane. The longitudinal center axis preferably lies in the longitudinal plane and the transverse plane. The transverse plane preferably divides the brush cutter into an upper section, which includes the drive motor, and a lower section. The center of gravity of the brush cutter is preferably located in the lower section of the brush cutter. This gives the brush cutter a particularly low center of gravity and allows the operator to easily guide it.

[0141] Preferably, the mounting section for the battery packs of the housing is located in the lower section of the brush cutter. Accordingly, the battery packs are also located in the lower section of the brush cutter when plugged into the mounting section. This allows the center of gravity to be shifted further toward the lower section. Preferably, the drive motor has a rotation axis, with the rotation axis running parallel to the longitudinal plane of the guide rail or lying in the longitudinal plane of the guide rail. This enables a slim design of the brush cutter.

[0142] It is preferably provided that the fastening section is designed such that the battery packs can be inserted into the fastening section in an insertion direction. Advantageously, the insertion direction essentially corresponds to the longitudinal direction of the first handle. When inserting the battery packs, the operator can hold the brush cutter with one hand and push the battery packs into the fastening section or pull them out with the other hand. Since the insertion direction and the longitudinal direction of the handle preferably essentially correspond, the operator can easily apply the required counterforce for inserting and pulling the battery packs.

[0143] Preferably, the fastening section is configured such that, when the first battery pack and the second battery pack are plugged into the brush cutter, a distance measured along the longitudinal center axis between a center of gravity of the first battery pack and the center of gravity of the brush cutter is greater than a distance measured along the longitudinal center axis between a center of gravity of the second battery pack and the center of gravity of the brush cutter. Accordingly, the battery packs are arranged offset from one another along the longitudinal center axis. In other words, the distance of the first battery pack from the center of gravity of the brush cutter differs from the distance of the second battery pack from the center of gravity of the brush cutter.

[0144] It is advantageous that the fastening section is designed such that, when the first battery pack and the second battery pack are plugged into the brush cutter, a distance measured perpendicular to the transverse plane between the center of gravity of the first battery pack and the center of gravity of the brush cutter is smaller than a distance measured perpendicular to the transverse plane between the center of gravity of the second battery pack and the center of gravity of the brush cutter. Accordingly, the battery packs are offset from one another in terms of height, i.e., in the direction perpendicular to the transverse plane.

[0145] The actuating element is particularly preferably arranged on the first handle. The actuating element is preferably designed as a lever pivotable about a first pivot axis, wherein the actuating element has an outer contour with a maximum first radius with respect to the first pivot axis, wherein the first radius is greater than the distance between the center of gravity of the brush cutter and the first pivot axis. The distance between the actuating element and the center of gravity of the brush cutter is preferably no greater than 3 cm, preferably no greater than 2 cm. The center of gravity of the brush cutter is thus particularly close to the actuating element. During normal operation of the brush cutter, the actuating element is actuated by means of the operator's index finger. Accordingly, the operator grips the handle with his index finger close to the center of gravity of the brush cutter.By clasping the center of gravity of the brush cutter with the thumb and index finger, the operator can handle the brush cutter particularly ergonomically.

[0146] Preferably, the housing has a longitudinal center plane running parallel to the longitudinal plane, with the longitudinal center plane intersecting the housing centrally, with the center of gravity of the brush cutter lying almost in the longitudinal center plane, particularly preferably in the longitudinal center plane of the housing. Thus, no lateral tilting moments arise that would require compensation by the operator.

[0147] It is preferably provided that the housing comprises a second handle for supporting another hand of the operator, and wherein the center of gravity of the brush cutter is formed between the second handle and the actuating element associated with the first handle. Preferably, the center of gravity of the brush cutter is formed between the second handle and the actuating element, relative to a direction perpendicular to the transverse plane of the guide rail.

[0148] The brush cutter particularly preferably has a fastening device. The fastening device preferably has at least one first fastening element for holding the brush cutter to the first fastening element. The fastening device is arranged in particular on the handle housing. The operator can use the fastening device to fasten the brush cutter to a carrying device or the like. The brush cutter can be fastened via the at least one first fastening element, for example, to a rope which is hooked at the other end, for example, to a carrying device of the operator. If the operator accidentally drops the brush cutter, the carrying device can be held by the rope. The first fastening element is preferably designed as an eyelet.

[0149] The fastening device preferably has a second fastening element for holding the brush cutter to the second fastening element. The second fastening element can be used analogously to the first fastening element. The second fastening element is designed, in particular, as an eyelet.

[0150] It is advantageously provided that the housing has a first longitudinal outer side and a second longitudinal outer side. The longitudinal outer sides are preferably arranged opposite one another with respect to a plane aligned parallel to the longitudinal plane of the guide rail. The first fastening element is preferably arranged on the first longitudinal outer side. The second fastening element is preferably arranged on the second longitudinal outer side.

[0151] It is preferably provided that the fastening device in the

[0152] The mounting section of the housing is located. The mounting section is specifically part of the handle housing. Thus, the mounting device is located closer to the rear end of the brush cutter, allowing the brush cutter to hang from the mounting device with the guide rail pointing toward the ground.

[0153] The fastening device is preferably arranged in a transverse direction between the first battery pack and the second battery pack in a state in which the first battery pack and the second battery pack are inserted into the wood cutter.

[0154] The fastening device preferably comprises a base body. The fastening device, in particular the base body of the fastening device, is preferably formed in one piece. The base body is preferably flat. The one-piece design of the fastening device allows for high forces to be transmitted to the housing. Furthermore, the fastening device is simple in design and can be manufactured cost-effectively.

[0155] The housing preferably comprises a first housing half and a second housing half, wherein the fastening device is held, in particular in a form-fitting manner, between the first housing half and the second housing half. This allows for easy assembly of the brush cutter with respect to the fastening device.

[0156] It is advantageously provided that the base body extends in a longitudinal direction, wherein a fastening element is formed on at least one of the longitudinal ends of the base body. Particularly preferably, a fastening element is formed on each of the longitudinal ends of the base body. Advantageously, adjacent to the fastening device, the first housing half and the second housing half are connected to one another via a mechanical connection. The mechanical connection is preferably designed as a screw connection. In an alternative embodiment of the brush cutter, it may also be expedient to provide other mechanical connections, for example snap connections, rivet connections or similar. As a result, the forces transmitted from the fastening device to the housing halves can be supported by the mechanical connection, in particular by the screw connection. The fastening device can therefore absorb high loads.

[0157] It is particularly preferred that the fastening device is arranged between the center of gravity of the brush cutter and the rear end of the housing. The fastening device is preferably arranged between the center of gravity of the brush cutter and the rear end of the housing with respect to a longitudinal direction of the first handle. If the brush cutter is hanging from its fastening device, the brush cutter will align itself due to gravity in such a way that the center of gravity of the brush cutter lies below the fastening device. This also aligns the guide rail, which is arranged at the front end of the housing, towards the ground. Firstly, this orientation of the brush cutter enables the operator to easily grip the first handle of the brush cutter from above.If the operator wants to resume work with the pruner, there's no need to change their grip on the pruner. Another advantage, especially when pruning trees, is that the pruner aligns itself while suspended from the mounting bracket with the guide bar pointing toward the ground. If the operator pulls the pruner upwards, the pruner and its saw chain are less likely to get caught on the tree branches.

[0158] It is advantageously provided that the first handle comprises a first grip section for resting a hand of the operator, wherein the grip section has an upper side and an underside facing away from the upper side. The housing preferably comprises a cover bracket. The cover bracket preferably extends from its first end to its second end along the underside of the first handle section. Particularly preferably, the cover bracket extends substantially parallel to the underside of the first handle section. The cover bracket preferably has a taper in the direction of its second end. The operator can, for example, use a carabiner or other fastening means to attach the tree pruner to the taper, for example to a carrying device of the operator.

[0159] The first end of the cover bracket preferably adjoins a motor housing of the housing and / or a central housing of the housing.

[0160] The cover bracket preferably has a maximum width measured perpendicular to the longitudinal plane spanned by the guide groove of the guide rail. The longitudinal plane is preferably located exactly centrally in the guide groove of the guide rail. The cover bracket has a minimum width, particularly at its taper, measured perpendicular to the longitudinal plane spanned by the guide groove of the guide rail. The minimum width at the taper corresponds in particular to at most 70%, preferably at most 60%, advantageously approximately 50% of the maximum width of the cover bracket. Particularly preferably, the minimum width of the cover bracket at the taper corresponds to at least 10%, preferably at least 20%, particularly preferably at least 30%, preferably at least 40% of the maximum width of the cover bracket. Due to this design of the cover bracket, the cover bracket is narrow enough at its taper to enclose the taper with a fastening means.Nevertheless, the cross-section of the cover bracket at its taper is still sufficiently large to stiffen the housing.

[0161] It is advantageous to provide a locking lever for locking and releasing the actuating element. The locking lever preferably has an outer contour that extends over a width perpendicular to the longitudinal plane of the guide rail, wherein the width is in particular smaller than the maximum width of the cover bracket. Particularly preferably, the cover bracket extends from a first longitudinal side to a second longitudinal side. Preferably, the outer contour of the locking lever is arranged in the direction perpendicular to the longitudinal plane of the guide rail completely between the first longitudinal side and the second longitudinal side of the cover bracket, at least in the region of the first end of the cover bracket. The actuating element is preferably arranged between the first handle section and the cover bracket. Thus, the actuating element is at least partially located behind the cover bracket.

[0162] It is advantageously provided that the cover bracket has an upper side facing the underside of the first handle. The housing preferably comprises a web, wherein the web extends from the upper side of the cover bracket to the underside of the handle. The web has a stiffening effect on the housing of the brush cutter. The actuating element is preferably arranged between the web and the first end of the cover bracket. The tapered portion of the cover bracket is preferably arranged between the web and the second end of the cover bracket. The second end of the cover bracket opens into the fastening section of the housing.

[0163] It is advantageously provided that a protective device for protecting the battery packs is provided on the fastening section, wherein the battery packs each extend in their longitudinal direction from a first end face to a second end face, wherein the first end face of the battery pack faces the fastening device and the second end face of the battery pack faces away from the fastening device, wherein the protective device comprises at least a first cover element, wherein the first cover element extends in the longitudinal direction of the first battery pack at least as far as the second end face of the first battery pack. The first cover element protects the first battery pack from impact loads, for example when the brush cutter falls to the ground. Damage to the first battery pack can thus be avoided.

[0164] The protective device comprises at least one second cover element. The second cover element preferably extends in the longitudinal direction of the second battery pack, at least as far as the second end face of the second battery pack. Thus, the second cover element protects the second battery pack from impact loads, for example, if the brush cutter falls to the ground. Damage to the second battery pack can thus be avoided.

[0165] It is advantageously provided that the battery packs are each inserted into the fastening device in their longitudinal direction. Particularly preferably, the battery packs are inserted into the fastening device, wherein the first battery pack and the second battery pack each have a longitudinal axis running in the longitudinal direction of the respective battery pack. The longitudinal axes of the battery packs are aligned in particular parallel to the longitudinal center plane of the housing. The longitudinal axes of the battery packs can preferably also run at an angle to one another. The longitudinal axes of the battery packs particularly preferably lie in the longitudinal center plane of the housing. In a transverse direction, the battery packs are preferably arranged one above the other. The transverse direction is advantageously aligned perpendicular to the longitudinal direction of the first battery pack and / or to the longitudinal direction of the second battery pack. The transverse direction preferably lies in a plane that is aligned parallel to the longitudinal center plane of the housing.Accordingly, the battery packs are positioned one above the other in a top view of the brush cutter, which allows for a particularly slim design of the brush cutter.

[0166] It is advantageously provided that the battery packs are arranged offset from one another in their longitudinal direction, and that the second end faces of the battery packs lie in different planes. Accordingly, the battery packs are arranged offset from one another in the longitudinal direction. Preferably, the battery packs are arranged at least overlapping one another in the longitudinal direction. The planes of the end faces of the first battery pack and the second battery pack preferably run parallel to one another.

[0167] The protective device advantageously comprises at least a third cover element. The protective device preferably comprises at least a fourth cover element. The third cover element preferably extends in the longitudinal direction of the battery packs, at least as far as the second end face of the battery packs. The fourth cover element preferably extends in the longitudinal direction of the battery packs, at least as far as the second end face of the battery packs. Particularly advantageously, the third cover element and the fourth cover element extend in the longitudinal direction of the battery packs at least as far as the second end face of the battery packs. As a result, the battery packs, when plugged in, are also protected from impact loads by the third cover element and the fourth cover element.

[0168] The battery packs preferably each have a substantially triangular cross-sectional contour with rounded corners. The battery packs are preferably of identical construction. The battery packs preferably each have a back wall formed between two rounded corners. The battery packs are arranged relative to one another in the fastening section such that the back walls of the battery packs lie opposite one another. In the direction of view of the longitudinal axes of the battery packs and / or the insertion direction of the battery packs, a contour encompassing the battery packs has a diamond-shaped geometry. This arrangement results in a slim design of the implement at its rear end. Advantageously, the first cover element is arranged on a rounded corner of the first battery pack facing away from the second battery pack. The second cover element is preferably arranged on a rounded corner of the second battery pack facing away from the first battery pack.As a result, the first cover element and the second cover element at least partially encompass the battery packs together, whereby the first cover element also increases the robustness of the second battery pack and the second cover element also increases the robustness of the first battery pack.

[0169] Particularly preferably, the third cover element and the fourth cover element are arranged transversely between the battery packs. The third cover element and the fourth cover element are configured opposite one another with respect to a plane aligned parallel to the longitudinal plane of the guide rail. The third cover element and the fourth cover element thus form lateral protection for the battery packs. The protective device preferably has recesses between the cover elements for gripping the battery packs. The operator can thus reach into the recesses and pull the battery packs out of the fastening section. The locking elements of the battery packs are preferably arranged in the recesses, so that the user can actuate the release and then remove the battery from the device.

[0170] It is preferred that movement gaps be provided between the cover elements and the battery packs. The movement gaps preferably taper toward the first end face of the battery packs. If an impact load is applied to one of the cover elements, it deforms elastically, whereby the impact energy is largely dissipated by the deformation of the cover element, thus preventing damage to the battery packs.

[0171] The third cover element and / or the fourth cover element preferably have an outer side facing away from the battery packs, wherein the outer side has a concave curve that protrudes between the battery packs. As a result, the third cover element and / or the fourth cover element extend close to the outer contour of the battery packs, thereby improving the protection of the battery packs.

[0172] The invention further relates to a hand-held working device.

[0173] Hand-held tools comprise a housing and a drive motor located within the housing. The drive motor drives a saw chain along a guide bar. Such tools include a battery pack to supply the drive motor with electrical energy.

[0174] The invention is based on the object of providing a hand-held tool of the generic type that has a robust construction and thus allows the operator to handle the tool easily. This object is achieved by a hand-held tool according to claim 49.

[0175] The hand-held working device according to the invention comprises a housing with a longitudinal center plane and a drive motor arranged in the housing, wherein a fastening section for receiving a first battery pack for supplying the drive motor with electrical energy is provided at a rear end of the housing, wherein the fastening section is provided for receiving a second battery pack, wherein a protective device for protecting the battery packs is provided on the fastening section, wherein the battery packs each extend in their longitudinal direction from a first end face to a second end face, wherein the first end face of the battery packs faces the fastening section and the second end face of the battery packs faces away from the fastening section, wherein the protective device comprises at least one first cover element,The first cover element extends longitudinally of the first battery pack at least to the second end face of the first battery pack. The first cover element protects the first battery pack from impact loads, for example, if the implement falls to the ground. Damage to the first battery pack can thus be avoided. A robust construction of the implement to protect the battery pack is ensured.

[0176] The protective device comprises at least one second cover element. The second cover element preferably extends in the longitudinal direction of the second battery pack, at least as far as the second end face of the second battery pack. Thus, the second cover element protects the second battery pack from impact loads, for example, when the implement falls to the ground. Damage to the second battery pack can thus be prevented.

[0177] It is advantageously provided that the battery packs are each inserted into the fastening section in their longitudinal direction. Particularly preferably, the battery packs are inserted into the fastening section, wherein the first battery pack and the second battery pack each have a longitudinal axis running in the longitudinal direction of the respective battery pack. The longitudinal axes of the battery packs are aligned in particular parallel to the longitudinal center plane of the housing. The longitudinal axes of the battery packs can preferably also run at an angle to one another. The longitudinal axes of the battery packs particularly preferably lie in the longitudinal center plane of the housing. In a transverse direction, the battery packs are preferably arranged one above the other. The transverse direction is advantageously aligned perpendicular to the longitudinal direction of the first battery pack and / or to the longitudinal direction of the second battery pack. The transverse direction preferably lies in a plane that is aligned parallel to the longitudinal center plane of the housing.Accordingly, the battery packs are positioned one above the other when viewed from above, which allows for a particularly slim design of the tool.

[0178] It is advantageously provided that the battery packs are arranged offset from one another in their longitudinal direction, and that the second end faces of the battery packs lie in different planes. Accordingly, the battery packs are arranged offset from one another in the longitudinal direction. Preferably, the battery packs are arranged at least overlapping one another in the longitudinal direction. The planes of the end faces of the first battery pack and the second battery pack preferably run parallel to one another.

[0179] The protective device advantageously comprises at least a third cover element. The protective device preferably comprises at least a fourth cover element. The third cover element preferably extends in the longitudinal direction of the battery packs, at least as far as the second end face of the battery packs. The fourth cover element preferably extends in the longitudinal direction of the battery packs, at least as far as the second end face of the battery packs. Particularly advantageously, the third cover element and the fourth cover element extend in the longitudinal direction of the battery packs at least as far as the second end face of the battery packs. As a result, the battery packs, when plugged in, are also protected from impact loads by the third cover element and the fourth cover element. The battery packs preferably each have a substantially triangular cross-sectional contour with rounded corners. The battery packs are preferably structurally identical.The battery packs preferably each have a back wall formed between two rounded corners. The battery packs are arranged in the fastening section such that the back walls of the battery packs lie opposite one another. In the direction of the longitudinal axes of the battery packs and / or the insertion direction of the battery packs, a contour encompassing the battery packs has a diamond-shaped geometry. This arrangement results in a slim design of the implement at its rear end. Advantageously, the first cover element is arranged on a rounded corner of the first battery pack facing away from the second battery pack. The second cover element is preferably arranged on a rounded corner of the second battery pack facing away from the first battery pack.As a result, the first cover element and the second cover element at least partially encompass the battery packs together, whereby the first cover element also increases the robustness of the second battery pack and the second cover element also increases the robustness of the first battery pack.

[0180] Particularly preferably, the third cover element and the fourth cover element are arranged transversely between the battery packs. The third cover element and the fourth cover element are configured opposite one another with respect to a plane aligned parallel to the longitudinal plane of the guide rail. Thus, the third cover element and the fourth cover element provide lateral protection for the battery packs.

[0181] The protective device preferably has recesses between the cover elements for gripping the battery packs. The operator can therefore reach into the recesses and pull the battery packs out of the fastening section. The locking elements of the battery packs are preferably arranged in the recesses so that the user can actuate the release and then remove the battery from the device. It is preferably provided that movement gaps are provided between the cover elements and the battery packs. The movement gaps preferably taper towards the first end face of the battery packs. If an impact load is applied to one of the cover elements, it deforms elastically, whereby the impact energy is largely dissipated by the deformation of the cover element, thus preventing damage to the battery packs.

[0182] The third cover element and / or the fourth cover element preferably have an outer side facing away from the battery packs, wherein the outer side has a concave curve that protrudes between the battery packs. As a result, the third cover element and / or the fourth cover element extend close to the outer contour of the battery packs, thereby improving the protection of the battery packs.

[0183] Advantageously, the drive motor drives a saw chain guided in the guide groove of the guide rail in a rotating manner via a drive sprocket, wherein the guide rail is arranged at a front end of the housing and has a longitudinal plane spanned by the guide groove, wherein the housing comprises a first handle for supporting a hand of the operator, wherein in particular an actuating element for actuating the drive motor is assigned to the first handle, wherein the fastening section is arranged on the housing, in particular at least on the first handle, in such a way that in a state of the working device in which the first battery pack and the second battery pack are arranged on the fastening section, a center of gravity of the working device lies in the first handle.

[0184] The center of gravity of the implement is in the first handle of the implement, allowing the user to grip the implement at its center of gravity. This reduces tilting moments caused by gravity that act around the handle and would have to be compensated for by the operator. Consequently, the operator can easily hold and guide the implement. The guide rail is preferably provided with a longitudinal center axis and a transverse plane aligned orthogonally to the longitudinal plane. The longitudinal center axis preferably lies in the longitudinal plane and in the transverse plane. The transverse plane preferably divides the implement into an upper section containing the drive motor and a lower section. The center of gravity of the implement is preferably in the lower section of the implement. This gives the implement a particularly low center of gravity and allows the operator to guide it easily.

[0185] Preferably, the mounting section for the battery packs of the housing is located in the lower section of the implement. This means that the battery packs, when inserted into the mounting section, are also located in the lower section of the implement. This allows the center of gravity to be shifted further toward the lower section.

[0186] Preferably, the drive motor has a rotational axis, wherein the rotational axis runs parallel to the longitudinal plane of the guide rail or lies in the longitudinal plane of the guide rail. This enables a slim design of the implement.

[0187] It is preferably provided that the fastening section is designed such that the battery packs can be inserted into the fastening section in an insertion direction. Advantageously, the insertion direction essentially corresponds to the longitudinal direction of the first handle. When inserting the battery packs, the operator can hold the tool with one hand and push the battery packs into the fastening section or pull them out with the other hand. Since the insertion direction and the longitudinal direction of the handle preferably essentially correspond, the operator can easily apply the required counterforce for inserting and pulling the battery packs.Preferably, the fastening section is configured such that, when the first battery pack and the second battery pack are plugged into the working device, a distance measured in the direction of the longitudinal center axis between a center of gravity of the first battery pack and the center of gravity of the working device is greater than a distance measured in the longitudinal direction between a center of gravity of the second battery pack and the center of gravity of the working device. Accordingly, the battery packs are arranged offset from one another in the direction of the longitudinal center axis. In other words, the distance of the first battery pack from the center of gravity of the working device differs from the distance of the second battery pack from the center of gravity of the working device.

[0188] It is advantageously provided that the fastening section is designed such that, when the first battery pack and the second battery pack are plugged into the working device, a distance measured perpendicular to the transverse plane between the center of gravity of the first battery pack and the center of gravity of the working device is smaller than a distance measured perpendicular to the transverse plane between the center of gravity of the second battery pack and the center of gravity of the working device. Accordingly, the battery packs are arranged offset from one another in terms of "height," i.e., in the direction perpendicular to the transverse plane.

[0189] The actuating element is particularly preferably arranged on the first handle. The actuating element is preferably designed as a lever that can be pivoted about a first pivot axis, wherein the actuating element has an outer contour with a maximum first radius with respect to the first pivot axis, wherein the first radius is greater than the distance between the center of gravity of the working device and the first pivot axis. The distance between the actuating element and the center of gravity of the working device is preferably no greater than 3 cm, preferably no greater than 2 cm. The center of gravity of the working device is thus particularly close to the actuating element. During normal operation of the working device, the actuating element is actuated by means of the operator's index finger. Accordingly, the operator grips the handle with his index finger close to the center of gravity of the working device.By gripping the center of gravity of the implement with the thumb and index finger, the operator can handle the implement in a particularly ergonomic manner.

[0190] Preferably, the housing has a longitudinal center plane running parallel to the longitudinal plane, with the longitudinal center plane intersecting the housing centrally, with the center of gravity of the implement lying almost in the longitudinal center plane, particularly preferably in the longitudinal center plane of the housing. Thus, no lateral tilting moments arise that would have to be compensated for by the operator.

[0191] It is preferably provided that the housing comprises a second handle for supporting another hand of the operator, and wherein the center of gravity of the working device is formed between the second handle and the actuating element associated with the first handle. Preferably, the center of gravity of the working device is formed between the second handle and the actuating element relative to a direction perpendicular to the transverse plane of the guide rail.

[0192] The work tool particularly preferably has a fastening device. The fastening device preferably has at least one first fastening element for holding the work tool on the first fastening element. The fastening device is arranged in particular on the handle housing. The operator can use the fastening device to fasten the work tool to a carrying device or the like. The work tool can be fastened via the at least one first fastening element, for example, to a rope which is hooked at the other end, for example, to a carrying device of the operator. If the operator accidentally drops the work tool, the latter can be held in place by the rope. The first fastening element is preferably designed as an eyelet. The fastening device preferably has a second fastening element for holding the work tool on the second fastening element.The second fastening element can be used in a similar way to the first fastening element. The second fastening element is designed, in particular, as an eyelet.

[0193] It is advantageously provided that the housing has a first longitudinal outer side and a second longitudinal outer side. The longitudinal outer sides are preferably arranged opposite one another with respect to a plane aligned parallel to the longitudinal plane of the guide rail. The first fastening element is preferably arranged on the first longitudinal outer side. The second fastening element is preferably arranged on the second longitudinal outer side.

[0194] It is preferably provided that the fastening device is arranged in the fastening section of the housing. The fastening section is in particular part of the handle housing. Thus, the fastening device is located closer to the rear end of the implement, whereby the implement, suspended from the fastening device, is aligned with the guide rail facing the ground.

[0195] The fastening device is preferably arranged in a transverse direction between the first battery pack and the second battery pack in a state in which the first battery pack and the second battery pack are inserted into the working device.

[0196] The fastening device preferably comprises a base body. The fastening device, in particular the base body of the fastening device, is preferably designed as a single piece. The base body is preferably flat. The single-piece design of the fastening device preferably allows high forces to be transmitted to the housing. On the other hand, the fastening device is therefore simply constructed and can be manufactured cost-effectively. The housing preferably comprises a first housing half and a second housing half, wherein the fastening device is held, in particular in a form-fitting manner, between the first housing half and the second housing half. This enables simple assembly of the implement with regard to the fastening device.

[0197] It is advantageously provided that the base body extends in a longitudinal direction, wherein a fastening element is formed on at least one of the longitudinal ends of the base body. Particularly preferably, a fastening element is formed at each of the longitudinal ends of the base body. Advantageously, adjacent to the fastening device, the first housing half and the second housing half are connected to one another via a mechanical connection. The mechanical connection is preferably designed as a screw connection. In an alternative embodiment of the work device, it may also be expedient to provide other mechanical connections, for example snap connections, rivet connections or similar. As a result, the forces transmitted from the fastening device to the housing halves can be supported by the mechanical connection, in particular by the screw connection. The fastening device can therefore absorb high loads.

[0198] It is particularly preferred that the fastening device is arranged between the center of gravity of the working device and the rear end of the housing. The fastening device is preferably arranged between the center of gravity of the working device and the rear end of the housing with respect to a longitudinal direction of the first handle. If the working device is hanging from its fastening device, the working device will align itself due to gravity in such a way that the center of gravity of the working device lies below the fastening device. This also means that the guide rail, which is arranged at the front end of the housing, is aligned towards the ground. Firstly, this orientation of the working device enables the operator to easily grasp the first handle of the working device from above. If the operator wishes to resume work with the working device, it is not necessary to change his hands on the working device.Secondly, it's particularly advantageous when pruning trees that the tool hangs from the mounting bracket with the guide bar pointing toward the ground. When the operator pulls the tool upwards, the tool and its saw chain are less likely to get caught on the tree branches.

[0199] It is advantageously provided that the first handle comprises a first grip section for supporting a hand of the operator, wherein the grip section has an upper side and an underside facing away from the upper side. The housing preferably comprises a cover bracket. The cover bracket preferably extends from its first end to its second end along the underside of the first handle section. Particularly preferably, the cover bracket extends substantially parallel to the underside of the first handle section. The cover bracket preferably has a taper in the direction of its second end. The operator can, for example, use a carabiner or other fastening means to fasten the work tool to the taper, for example to a carrying device of the operator.

[0200] The first end of the cover bracket preferably adjoins a motor housing of the housing and / or a central housing of the housing.

[0201] The cover bracket preferably has a maximum width measured perpendicular to the longitudinal plane spanned by the guide groove of the guide rail. The longitudinal plane is preferably located exactly centrally in the guide groove of the guide rail. The cover bracket has a minimum width, particularly at its taper, measured perpendicular to the longitudinal plane spanned by the guide groove of the guide rail. The minimum width at the taper corresponds in particular to at most 70%, preferably at most 60%, advantageously approximately 50% of the maximum width of the cover bracket. Particularly preferably, the minimum width of the cover bracket at the taper corresponds to at least 10%, preferably at least 20%, particularly preferably at least 30%, preferably at least 40% of the maximum width of the cover bracket. Due to this design of the cover bracket, the cover bracket is narrow enough at its taper to enclose the taper with a fastening means.Nevertheless, the cross-section of the cover bracket at its taper is still sufficiently large to stiffen the housing.

[0202] It is advantageous to provide a locking lever for locking and releasing the actuating element. The locking lever preferably has an outer contour that extends over a width perpendicular to the longitudinal plane of the guide rail, wherein the width is in particular smaller than the maximum width of the cover bracket. Particularly preferably, the cover bracket extends from a first longitudinal side to a second longitudinal side. Preferably, the outer contour of the locking lever is arranged in the direction perpendicular to the longitudinal plane of the guide rail completely between the first longitudinal side and the second longitudinal side of the cover bracket, at least in the region of the first end of the cover bracket. The actuating element is preferably arranged between the first handle section and the cover bracket. Thus, the actuating element is at least partially located behind the cover bracket.

[0203] It is advantageously provided that the cover bracket has an upper side facing the underside of the first handle from the cut. The housing preferably comprises a web, wherein the web extends from the upper side of the cover bracket to the underside of the handle from the cut. The web has a stiffening effect on the housing of the implement. The actuating element is preferably arranged between the web and the first end of the cover bracket. The tapered portion of the cover bracket is preferably arranged between the web and the second end of the cover bracket. The second end of the cover bracket opens into the fastening section of the housing.

[0204] It is advantageously provided that the housing comprises a second handle with a second handle section for supporting the other hand of the operator, wherein a limiting device is provided between the second handle section and the guide rail, wherein the limiting device has an elevation extending at least within the longitudinal plane opposite the second handle section, wherein the elevation is designed such that slipping from the second handle section in the direction of the guide rail is prevented. This ensures that the operator of the implement has a firm hold on the second handle of the implement with his other hand. This allows the operator to guide the implement precisely and also carry out delicate work on the woodland.

[0205] Preferably, the raised portion is designed such that it forms a positive stop for the operator's hand resting on the second handle section in the direction of the guide rail. This can be particularly advantageous when piercing branches with the tool. While the main load on the first handle is borne by one of the operator's hands, additional force can be exerted by the operator's other hand via the positive stop, particularly during piercing.

[0206] When viewed perpendicular to the longitudinal plane, the limiting device preferably has an outer contour. The outer contour of the limiting device has, in particular, a first end adjoining the second handle section and a second end adjacent to the guide rail. The elevation of the limiting device is particularly preferably formed at the first end of the outer contour. Accordingly, the elevation directly borders the second handle section of the second handle. By forming the elevation directly adjacent to the second handle section, the operator can place his other hand with the palm of his hand on the second handle section of the implement and at the same time place the side of his hand, i.e. the side of his little finger, against the elevation. The other hand thus has a secure fit on the second handle of the implement.It is advantageous for the raised portion to have a concave contact section adjacent to the second grip section. The contact section forms an undercut for the operator's hand resting against the contact section. Thus, the operator's other hand firmly forms itself into the undercut of the handle when resting on the second grip.

[0207] It is particularly provided that the elevation has a height measured perpendicular to the second handle section at the first end of the outer contour in the viewing direction perpendicular to the longitudinal plane, wherein the height corresponds to at least 15%, in particular at least 20%, preferably approximately 25% of a length of the second handle section measured in the longitudinal direction of the second handle section.

[0208] Preferably, the housing comprises a lubricant tank for supplying the saw chain with lubricant, wherein the limiting device at least partially encloses the lubricant tank.

[0209] Particularly preferably, the housing is open upwards in the area of ​​the second handle, starting at the cut. This allows the operator to grip and release the second handle section more easily.

[0210] Preferably, the installation section is provided with an anti-slip coating.

[0211] This gives the operator an improved grip on the work tool on the second handle section, allowing the operator to work with the work tool with precision.

[0212] The invention relates to a hand-held working tool such as a hedge trimmer, a chainsaw or the like.

[0213] Such hand-held tools widely rely on a mechanical operating concept, in which, during normal operation, the user must actuate at least two control elements to control the power of the drive motor. The first control element can, for example, be the throttle lever of an internal combustion engine or the power lever of an electric drive motor. In an unactuated rest position, the throttle lever or power lever is in the idle position. When pressed into an actuated position, the drive motor speed is increased to operating speed with a corresponding increase in power, so that the corresponding tool is driven at operating speed.

[0214] In this context, the second control element can be a so-called throttle lock, which is held in a non-actuated position by a spring. In its non-actuated position, the second control element blocks movement of the first control element._, elements toward its actuated position, thus preventing accidental acceleration or switching on. Only by actively actuating the second control element against the force of the spring is the first control element released, allowing it to be moved to the actuated position with the corresponding power setting of the drive motor.

[0215] In practical operation, such tools are held in different orientations, for example, to perform horizontal or vertical cuts. This often involves the user changing their hand position relative to the handle. Nevertheless, both controls must remain within reach of the user.

[0216] EP 3 792 006 A1 discloses a hand-held implement with such an operating concept, wherein a locking lever acting on the power lever is provided with wing elements for actuation. One wing element protrudes from each side of the implement housing so that the locking lever can be actuated from both sides. Centrally between the wing elements, the locking lever is provided with an actuation contour against which a leaf spring rests under preload. As a result, the locking lever is returned to its unactuated initial position when released. This arrangement has proven successful in the implement shown. However, the leaf spring requires a certain minimum overall length, which is added to the axial overall length of the locking lever. In addition, adaptation to other handle shapes with different hand positions is difficult because the wing elements cannot be freely positioned due to their interaction with the leaf spring.

[0217] The invention is based on the object of providing a hand-held working device with a more compact design of its locking mechanism.

[0218] This object is achieved by a hand-held working device having the features of claim 62.

[0219] According to the invention, a hand-held working device is provided with at least one tool, with a drive motor for driving the at least one tool, with a housing, with a first operating _, element designed to control the drive motor and with a second control _,element that is pivotally mounted about a pivot axis between an unactuated position and at least one actuated position relative to the housing. In this case, the second operating element, in its unactuated position, blocks a movement of the first operating element in the direction of an actuated position of the first operating element, wherein the second operating element is held in the unactuated stiffening by a spring. The spring has a clamping section that is held fixed to the housing. In addition, the spring has an actuating section that interacts with an actuating contour of the second operating element. The second operating element has at least _,at least one operating section, which is provided for actuating the second operating element by an operator, wherein the operating section has a connection area, at which the operating section projects through an opening in the housing onto the outside of the housing. The connection area of ​​the operating section extends from a first plane running perpendicular to the pivot axis to a second plane running perpendicular to the pivot axis, and does not project beyond these planes. The said planes enclose an operating section _, area of ​​the work equipment -1 , wherein the clamping section and the actuating section extend at least partially on opposite sides of the operating section area. In particular, the clamping section and the actuating section are arranged completely outside the operating section area.

[0220] The invention is based on the recognition that the spring's overall length is crucial, and that a minimum spring length cannot be undercut to prevent excessive tension from occurring at given spring travel. The arrangement defined above ensures that one end of the spring is positioned in front of and one behind the actuating section. The second operating element, acting as a locking element, thus requires virtually no additional length to the overall assembly. Rather, the overall length of the locking lever assembly is essentially reduced to the technical minimum of the spring length. Furthermore, a so-called "through-hole" design can be realized, in which the spring is located inside the locking element and therefore does not interfere with the positioning of one or more operating sections.The operating sections can be freely positioned according to ergonomic considerations, so that their accessibility can be improved in different working positions.

[0221] In a preferred development of the invention, the spring is designed as a leaf spring and extends out of the clamping section in the direction of a central plane, wherein the central plane forms an angle of at least 10°, in particular at least 15°, with the pivot axis of the second operating element. _, closes.

[0222] This ensures that the leaf spring, at its end opposite the clamping section, runs approximately parallel to the bearing axis of the second operating element due to its preloaded bending line, at a short distance, requiring only minimal radial space in this area. Furthermore, the inclined position facilitates the falling off of any dirt that may have entered, ensuring the assembly remains free-running for a long time, even under harsh operating conditions.

[0223] Preferably, the opening is at least partially covered by a cover portion of the second operating element, with the connecting region of the operating portion being arranged on the cover portion. This makes it difficult for contaminants to enter through the housing opening when the second operating element is in different positions.

[0224] The spring advantageously has at least one contact section on the actuating section in the contact area with the actuating contour, which is bent away from the actuating contour in the circumferential direction relative to the pivot axis, with the contact section being arranged outside the cover section. Due to the bent shape, the contact section can easily slide along the actuating contour without colliding with the cover section when bent upwards.

[0225] In an advantageous further development, the spring extends between the cover section and the pivot axis. The cover section covers a central area of ​​the spring towards the outside of the housing. -1 . In particular, the cover section extends over an angular range of at least 120° in an arc around the pivot axis. Preferably, the operating section ends at the connection area with the cover. ,cover section forms an angle of at least 30°. The actuating contour and the cover section expediently delimit an opening through which the spring projects. Advantageously, the second operating element has a bearing axis that extends from a first bearing pin to a second bearing pin, wherein the first operating element and the spring are arranged on opposite sides of the bearing axis of the second operating element in the direction of a pivot axis of the first operating element. The aforementioned features contribute to a compact, dirt-resistant design. In a preferred development, the actuating contour has at least one convexly curved section. In particular, the actuating contour has two convexly curved sections, wherein the spring rests against both convexly curved sections when the second operating element is in the unactuated position.A clean, clearly defined reset position is achieved, from which a certain finger force is required to move the second control element into the actuated position. The convex curve ensures that the actuation force does not increase excessively with increasing deflection.

[0226] Advantageously, the first operating element is pivotally mounted relative to the housing about a pivot axis between an unactuated position and an actuated position, with the pivot axis of the first operating element and the pivot axis of the second operating element being inclined to each other, in particular perpendicular to each other. This facilitates ergonomic operation.

[0227] It may be sufficient to provide the second control element with only a single operating section. In a preferred embodiment, the second control element has at least two, and in particular three, operating sections protruding from the housing. This allows the user to easily reach at least one of the operating elements, even when holding the device in a variety of positions.

[0228] Further features of the invention will become apparent from the description and the drawings, which depict embodiments of the invention described in detail below. They show:

[0229] Fig. A1 shows a perspective view of an embodiment of the working device according to the invention, Fig. A2 shows a side view of a further embodiment of the working device according to the invention,

[0230] Fig. A3 shows a plan view of the working device according to Fig. A2,

[0231] Fig. A4 in a lateral sectional view along the longitudinal center plane of the housing, the working device according to Fig. A2,

[0232] Fig. A5 in a partial, perspective view from behind the working device with the handle housing open,

[0233] Fig. A6 in a perspective view from behind the working device according to Fig. A2,

[0234] Fig. A7 in a renewed side view of the working device according to Fig. A2,

[0235] Fig. A8 in a view from below the working device according to Fig. A2,

[0236] Fig. A9 shows a perspective, schematic view of the battery packs for the working device according to the invention,

[0237] Fig. A10 in a view from behind the working device according to Fig. A2,

[0238] Fig. A1 1 shows a plan view of the working device according to Fig. A2,

[0239] Fig. A12 in a sectional view through the fastening device with a view from above onto the working device, the working device according to Fig. A2,

[0240] Fig. A13 shows a partial perspective view of the working device according to Fig. A2 with only one housing half, Fig. A14 shows a partial perspective view of the fastening device fastened in one housing half of the working device according to Fig. A2,

[0241] Fig. Al 5 in a partial side view of the working device according to the invention with limiting device,

[0242] Fig. Al 6 shows in a perspective view the working device according to Fig. A2 without battery packs and

[0243] Fig. Al 7 shows a perspective view of another embodiment of the working device according to the invention without a protective device,

[0244] Fig. Al 8 In a side view, another embodiment of the hand-held working device 1 with a fixing device,

[0245] Fig. Al 9 shows a partial side view of the fixing device arranged on the battery packs according to Fig. Al 8,

[0246] Fig. A20 in a side view the fixing device according to Fig. A1 8,

[0247] Fig. A21 in a view from below the fixing device according to Fig. Al 8 and

[0248] Fig. A22 shows a side view of another embodiment of the fixing device.

[0249] Fig. B1 shows a perspective view of a working device designed according to the invention using the example of a chainsaw with a first operating element for controlling a drive motor and with a second operating element for locking the first operating element, Fig. B2 shows a perspective inside view of the area of ​​the handle according to Fig. B1 with details of the arrangement of two operating elements,

[0250] Fig. B3 the arrangement according to Fig. Bl in a longitudinal section,

[0251] Fig. B4 shows a side view of the arrangement according to Fig. B2 with further details on the arrangement of the operating elements,

[0252] Fig. B5 shows the arrangement according to Fig. B4 in a partially sectioned view,

[0253] Fig. B6 the arrangement according to Fig. B2 with the second operating element pivoted into the actuated position,

[0254] Fig. B7 the arrangement according to Fig. B3 with the second operating element pivoted into the actuated position,

[0255] Fig. B8 the arrangement according to Fig. B4 with the second operating element pivoted into the actuated position,

[0256] Fig. B9 the arrangement according to Fig. B5 with the second operating element pivoted into the actuated position,

[0257] Fig. BIO in a rear view of the arrangement according to Fig. B2 with details of the angular extensions of the second control element,

[0258] Fig. Bl 1 shows a front view of the arrangement according to Fig. B2 with details of the position of the pivot axes of both operating elements, and Fig. B12 shows a perspective view of a variant of the arrangement according to Fig. B2 with an enlarged housing opening and with a total of three operating sections on the second operating element.

[0259] Fig. A1 shows an embodiment of a working device 1 according to the invention. In the exemplary embodiment, the hand-held working device 1 is designed as a brush cutter. A brush cutter is a type of motor-driven saw, which is preferably intended for cutting branches and small woody plants. The preferred use of a brush cutter is, in particular, the limbing of trees. In an alternative embodiment, the working device 1 can also be designed as a hedge trimmer, blower, or the like. In addition, the working device 1 can also be designed as a working device with a shaft, for example as a pole pruner, hedge trimmer, brush cutter, grass trimmer, brush cutter, or the like. The term "hand-held" is to be understood in such a way that the working device is carried by the operator during normal operation.

[0260] The working device 1 comprises a housing 2. The working device 1 comprises a drive motor 3. The drive motor 3 is arranged in the housing 2. The working device further comprises a tool, wherein the tool is driven by the drive motor 3. In the present exemplary embodiment, the tool is a saw chain 5. The saw chain 5 is driven in rotation in a guide groove of a guide rail 4. The drive motor 3 drives a drive sprocket via its drive shaft, which in turn drives the saw chain 5 in rotation around the guide rail 4. As shown in Fig. A2, a transport guard 71 is pushed onto the guide rail 4, which surrounds the saw chain 5 and protects it from damage. In the exemplary embodiment, the drive motor 3 is designed as an electric motor. The working device 1 comprises a first battery pack 21. The first battery pack 21 is provided for supplying the drive motor 3 with electrical energy. The working device 1 comprises a second battery pack 22.The second battery pack 22 is provided to supply the drive motor 3 with electrical energy. The implement 1, in particular the drive motor 3 of the implement 1, can preferably also be operated using only one of the two battery packs 21, 22. In the preferred embodiment, however, the two battery packs 21, 22 are connected in series.

[0261] As shown in Fig. A1, the guide rail 4 comprises a longitudinal plane 31 spanned by the guide groove of the guide rail 4. Furthermore, the guide rail 4 comprises a longitudinal central axis 30. The longitudinal central axis 30 lies in the longitudinal plane 31. The longitudinal central axis 30 runs centrally through the guide rail 4, whereby the guide rail 4 is divided into two approximately equal parts by the longitudinal central axis 30 when viewed perpendicular to the longitudinal plane 31 of the guide rail 4. Furthermore, the guide rail 4 comprises a transverse plane 32. The transverse plane 32 is aligned orthogonally to the longitudinal plane 31 of the guide rail 4. The longitudinal central axis 30 lies in the transverse plane 32.

[0262] As shown in Fig. A1, the housing 2 has a front end 6 and a rear end 7. The guide rail 4 is arranged at the front end 6 of the housing 2. A mounting portion 14 is provided at the rear end 7 of the housing 2. The mounting portion 14 is provided for receiving the first battery pack 21. The mounting portion 14 is also provided for receiving the second battery pack 22.

[0263] As shown in Fig. A1, the housing 2 comprises a central housing 47. The front end 6 of the housing 2 is formed on the central housing 47. The guide rail 4 protrudes from the central housing 47 at the front end 6 of the housing 2 and extends in the direction from the rear end 7 of the housing 2 to the front end 6 of the housing 2. The working device 1 comprises a guide rail fastening device 75 for fastening the saw chain 5. In an operating state of the guide rail fastening device 75, the guide rail 4 is clamped to the housing 2, in particular to the central housing 47. In a released state of the guide rail fastening device 75, the guide rail 4 is displaceable in the direction of the longitudinal central axis 30 relative to the housing 2. The guide rail 4 can be pushed away from the housing 2 in the direction of its longitudinal central axis 30, whereby the saw chain 5 can be tensioned.If the guide rail fastening device 75 is advantageously closed by means of a screw connection, the guide rail 4 is held clamped to the housing 2.

[0264] As shown in Fig. A1, the housing 2 of the working device 1 comprises a motor housing 49. The drive motor 3 is arranged in the motor housing 49. The housing 2 also comprises a handle housing 48. The working device 1 comprises a first handle 9 for supporting a hand of the operator. The first handle 9 is formed on the housing 2, in particular on the handle housing 48 of the housing 2. The rear end 7 of the housing 2 is preferably formed on the handle housing 48. The fastening section 14 is part of the handle housing 48. The central housing 47, the handle housing 48 and the motor housing 49 of the housing 2 are arranged adjacent to one another.

[0265] As shown in Fig. A1, the working device 1 comprises an actuating element 10 for actuating the drive motor 3. The actuating element 10 is assigned to the first handle 9, i.e., during normal operation of the working device 1, the operator actuates the actuating element 10 with the hand resting on the first handle 9. The working device 1 comprises a, preferably mechanical, locking lever 26. The locking lever 26 is designed to lock the actuating element 10 in a locked position, preferably mechanically, and to release it in an operating position. If the operator wishes to actuate the actuating element 10, they must first unlock the actuating element 10 by actuating the locking lever 26. The operator can then actuate the actuating element 10 and control the drive motor 3.

[0266] As shown in Fig. Al, the working device 1 comprises a cover bracket 101. The

[0267] Cover bracket 101 is part of the housing 2. The cover bracket 101 encompasses the

[0268] Actuating element 10 and serves to stiffen the housing 2. Furthermore, the working device comprises a fastening device 11. The fastening device 11 has at least one fastening element 12 for holding the working device 1 to the at least one fastening element 12. For example, the operator can attach the working device 1 to a rope via the fastening element 12, whereby the working device 1 can be secured against falling to the ground. The particularly preferred embodiment of the working device 1 has a protective device 80. The protective device 80 is designed such that it protects the battery packs 21, 22 from shock loads, for example when the working device 1 hits the ground. Damage to the battery packs 21, 22 can thus be avoided.

[0269] As shown in Fig. A1, the working device 1 comprises a second handle 57. The second handle 57 is provided for supporting the operator's other hand. The second handle 57 is formed on the housing 2, in particular on the motor housing 3. The working device 1 further comprises a limiting device 60. The limiting device 60 is arranged between the guide rail 4 and the second handle 57. The limiting device 60 is designed such that the operator's hand is prevented from slipping off the second handle 57 in the direction of the guide rail 4.

[0270] Fig. A2 shows a side view of a further embodiment of the work tool 1 according to the invention. The work tool 1 comprises a center of gravity S1. The center of gravity S1 lies in the first handle 9 of the work tool 1 in a state of the work tool 1 in which the first battery pack 21 and the second battery pack 22 are arranged on the fastening section 14. Such a weight distribution of the work tool 1 is particularly advantageous because, during the intended operation of the work tool 1, the operator grasps the first handle 9 and thus also the center of gravity S1 with one hand. This allows the operator to hold the work tool 1 easily without having to compensate for tipping moments of the work tool 1. Unpleasant moments of inertia are also avoided during operation of the work tool 1.In the preferred embodiment of the working device 1, in particular the fastening section 14 is designed on the housing 2 in such a way that the first battery pack 21 and the second battery pack 22 are arranged favorably on the housing 2, whereby the center of gravity S1 of the working device 1 lies in the first handle 9.

[0271] As shown in Fig. A2, the first handle 9 extends along a longitudinal direction 35. The longitudinal direction 35 of the first handle 9 corresponds to the direction of a longitudinal central axis 54 of the first handle 9. The first handle 9 comprises a gripping region 53 in which the handle 9 can be completely grasped. In this gripping region 53, the handle 9, in particular the handle housing 48, is cylindrical. The axis of the cylinder corresponds to the longitudinal central axis 54 of the first handle 9. The handle 9 itself extends along its longitudinal central axis from a rear end 77 to its front end 76. The rear end 77 faces the rear end 7 of the housing 2. The front end 76 faces the front end 6 of the housing 2. The front end 6 of the handle 9 is determined by the section on the handle housing 48 at which the handle 9 can still be completely grasped by the operator's hand.The front end 6 is marked by a dashed line, along which the operator's index finger can grip the handle housing 48. As shown in Fig. A2, the center of gravity S1 of the implement 1 is thus located just in front of the front end 6 of the handle 9, so that the operator grips the center of gravity S1 of the implement 1 with his index finger during the intended operation of the implement 1. The rear end 77 of the handle 9 is formed in the present embodiment by a projection 78 opposite the gripping surface of the handle 9. In the present embodiment, the protective device 80 adjoins the projection 78.

[0272] As shown in Fig. A2, the transverse plane 32 of the guide rail 4 divides the housing 2 into an upper section 36 and a lower section 37. The drive motor 3 with its center of gravity SM is arranged in the upper section 36. The center of gravity S1 of the working device 1 is located in the lower section. Furthermore, a position vector g and a horizontal, flat floor 112 are shown in Fig. A2. The longitudinal center axis 30 of the guide rail 4 lies in a plane that is aligned parallel to the floor 112. The first battery pack 21 and the second battery pack 22 are also arranged in the lower section. The first battery pack 21 has a center of gravity SA1. The second battery pack 22 has a center of gravity SA2. The centers of gravity SA1, SA2 of the two battery packs 21, 22 are arranged in the lower section 37 of the housing 2. Thus, the centers of gravity SAI, SA2 of the battery packs 21, 22 form a weight balance with respect to the center of gravity SM of the drive motor 3.In the exemplary embodiment, the fastening section 14 of the housing 2 is also located in the lower section 37 of the working device 1.

[0273] As shown in Fig. A3, the working device 1 comprises a longitudinal center plane 43. The longitudinal center plane 43 runs parallel to the longitudinal plane 31 of the guide rail 4 and intersects the housing 2 centrally. The housing 2 preferably has two housing halves, a first housing half 15 and a second housing half 16. The parting plane of the first housing half 15 and the second housing half 16 preferably corresponds to the longitudinal center plane 43 of the working device 1.

[0274] As shown in Fig. A3, the centers of gravity SAI, SA2 of the battery packs 21, 22 are preferably arranged on the longitudinal center plane 43. The working device 1 is designed such that the center of gravity S1 of the working device 1 lies on the longitudinal center plane 43. The drive motor 3 is arranged in the housing 2, in particular in the motor housing 49, such that the center of gravity SM of the drive motor 3 also lies in the longitudinal center plane 43 of the working device 1. For this purpose, the drive motor 3 is aligned such that its axis of rotation 33 (Fig. A4) runs parallel to the longitudinal plane 31 of the guide rail 4 or preferably lies in the longitudinal plane 31 of the guide rail 4. In the exemplary embodiment, the axis of rotation 33 lies in the longitudinal center plane 43 of the working device 1. As shown in Fig. A4, the fastening section 14 is designed such that the battery packs 21, 22 can be inserted into the fastening section 14 in an insertion direction 34.The insertion direction 34 preferably corresponds substantially to the longitudinal direction 35 of the first handle 9. To fasten the battery packs 21, 22 in the fastening section 14 of the housing 2, they are to be inserted in the insertion direction 34 until they contact a stop element 23, 24. The first stop element 23 of the fastening section 14 limits the movement of the first battery pack 21 in the insertion direction 34. The second stop element 24 limits a movement of the second battery pack 22 in the insertion direction 34. In the preferred embodiment, a locking connection is provided between the fastening section 14 and the battery packs 21, 22, which locks when the battery packs 21, 22 are inserted. Two release elements 111 (Fig. A2) are provided on each battery pack 21, 22. When activated, these release elements release the locking connection between the battery packs 21, 22 and the fastening section 14. The battery packs 21, 22 can be removed again.

[0275] As shown in Fig. A2, the fastening section 14 is designed such that the first battery pack 21 and the second battery pack 22 are arranged offset from one another in the direction of the longitudinal center axis 30 of the guide rail 4. The second battery pack 22 is located, measured in the direction of the longitudinal center axis 30 of the guide rail 4, closer to the front end 6 of the housing 2 than the first battery pack 21. Accordingly, when the working device 1 is plugged in with the first battery pack 21 and the second battery pack 22, a distance a measured in the direction of the longitudinal center axis 30 between the center of gravity SA1 of the first battery pack 21 and the center of gravity S1 of the working device 1 is greater than a distance b measured in the longitudinal direction 30 between the center of gravity SA2 of the second battery pack 22 and the center of gravity S1 of the working device 1. Particularly preferably, the distance b corresponds to at most 90%, in particular at most 80% of the distance a. As shown in Fig.A2, in the preferred exemplary embodiment, the first battery pack 21 and the second battery pack 22 are arranged offset from one another in the direction perpendicular to the transverse plane 32 of the guide rail 4. Accordingly, the fastening section 14 is designed such that, when the working device 1 is plugged into the first battery pack 21 and the second battery pack 22, a distance c measured perpendicular to the transverse plane 32 between the center of gravity SA1 of the first battery pack 21 and the center of gravity S1 of the working device 1 is smaller than a distance d measured perpendicular to the transverse plane 32 between the center of gravity SA2 of the second battery pack 22 and the center of gravity S1 of the working device 1. The distance c corresponds to a maximum of 90% of the distance d.

[0276] As shown in Fig. A4, the actuating element 10 is attached to the first handle 9 of the working device _,tes 1. A distance q is provided between the actuating element 10 and the center of gravity S1 of the working device 1, wherein the distance q in the exemplary embodiment is not greater than 3 cm, preferably not greater than 2 cm, in particular not greater than 1 cm. This has the consequence that the operator, when grasping the first handle 9 and actuating the actuating element 10, also at least partially grasps the center of gravity S1 of the working device 1. In the preferred exemplary embodiment, the center of gravity S1 of the working device 1 lies between the second handle 57 and the actuating element 10.

[0277] As shown in Fig. A4, in the preferred embodiment of the working device 1, the locking lever 26 is arranged in the handle housing 48. In the exemplary embodiment, the locking lever 26 is arranged outside the handle 9 (Fig. A2). The locking lever 26 has a distance r from the center of gravity S1 of the working device 1, wherein the distance r is not greater than 3 cm, preferably not greater than 2 cm, in particular not greater than 1 cm.

[0278] As shown in Fig. A4, in the preferred embodiment the actuating element

[0279] 10 is designed as a pivotable lever. The actuating element 10 is pivotally mounted relative to the housing 2 about a first pivot axis 38. The first pivot axis 38 is preferably aligned perpendicular to the longitudinal plane 31 of the guide rail 4. The actuating _,element 10 comprises an outer contour 25. The outer contour 25 has a maximum first radius rl with respect to the first pivot axis 38. In other words, the maximum first radius rl corresponds to the maximum radial extension of the actuating element 10 with respect to the first pivot axis 38. The actuating element 10 is arranged in the handle 9 such that the maximum first radius rl is greater than the distance e between the center of gravity S1 of the working device 1 and the first pivot _, axis 38 of the actuating element 10. Thus, the center of gravity S1 of the working device 1 is very close to the pivot axis 38 of the actuating element 10.

[0280] As shown in Fig. A5, the locking lever 26 is also designed as a pivotable lever. The locking lever 26 is pivotally mounted relative to the housing 2 about a second pivot axis 39. The pivot axis 39 of the locking lever 26 preferably lies in a plane aligned parallel to the longitudinal plane 31 of the guide rail 4. The pivot axis 39 of the locking lever 26 preferably lies in the longitudinal center plane 43 of the housing 2. The locking lever 26 has an outer contour 27, wherein the outer contour 27 has a maximum second radius r2 with respect to the second pivot axis 39. The maximum second radius r2 is greater than a distance f between the center of gravity S1 of the working device 1 and the second pivot axis 39. Thus, the center of gravity S1, viewed in the direction of the second pivot axis 39 of the locking lever 26, lies within the maximum second radius r2 of the locking lever 26.During normal operation of the implement 1, the operator is required to actuate the locking lever 26 using their thumb. The position of the center of gravity S1 of the implement 1 now means that the operator grasps the center of gravity S1 with both their thumb and their index finger. Consequently, the operator grips the implement 1 directly at the center of gravity S1, ensuring particularly ergonomic handling of the implement 1. Figures A6 and A7 show the embodiment of the implement 1 according to Fig. A2. The view of the implement 1 according to Fig. A2 is shown repeatedly in Fig. A7 for the sake of clarity.

[0281] As shown in Figs. A6 and 7, the first handle 9 comprises a first handle section 55 for supporting the operator's hand, in particular for grasping the first handle 9. The handle section 55 has an upper side 51 and a lower side 52 facing away from the upper side 51. The upper side 51 of the handle section 55 faces away from the actuating element 10. The lower side 52 of the handle section 55 faces the actuating element 10. Preferably, the actuating element 10 is arranged in the housing 2 such that the actuating element protrudes from the housing 2 directly at an opening in the lower side 52 of the handle section 55.

[0282] As shown in Figures A6 and A7, the cover bracket 101 extends from its first end 103 to its second end 104 along the underside 52 of the first handle from section 55. In the exemplary embodiment, the cover bracket 101 extends substantially parallel to the underside 52 of the first handle from section 55. Thus, the actuating element 10 is arranged between the handle 9, in particular the handle section 55, and the cover bracket 101. The cover bracket 101 directly adjoins the motor housing 49 and the central housing 47 of the housing 2 at its first, front end 103. The cover bracket 101 separates the handle housing 48 from the motor housing 49 and the central housing 47. The second end 104, i.e. the rear end of the cover bracket 101, opens into the handle housing 48 of the housing 2, in particular into the fastening section 14 of the handle housing 48.The handle housing 48 and the cover bracket 101 form an opening 110 through which the operator's fingers can pass when gripping the handle from section 55 onwards. The cover bracket 101 serves to stiffen the housing 2. Particularly when high forces and moments act on the housing 2, it is particularly advantageous that the corresponding loads are also absorbed by the cover bracket 101, thus preventing damage to the housing 2. The cover bracket 101 is advantageously formed integrally with the central housing 47 and / or the handle housing 48.

[0283] As shown in Fig. A6, the cover bracket 101 has a taper 102 toward its second end 104. The taper 101 allows the operator to attach the work tool 1 to a carrying device via a carabiner 113 or other locking element. The carabiner 113 is schematically shown in Fig. A6 by dashed lines.

[0284] As shown in Fig. A8, the cover bracket 101 extends in a direction perpendicular to the longitudinal plane 31 of the guide rail 4 from a first longitudinal side 108 of the implement 1 to a second longitudinal side 109 of the implement 1. The cover bracket 101 comprises a maximum width k measured perpendicular to the longitudinal plane 31, which corresponds to the maximum distance between the first longitudinal side 108 of the implement 1 and the second longitudinal side 109 of the implement 1. Furthermore, the cover bracket 101 has a minimum width l at its taper 102, wherein the minimum width l of the taper 102 corresponds to the minimum distance between the first longitudinal side 108 and the second longitudinal side 109. The minimum width l corresponds to at most 70%, preferably at most 60%, in particular approximately 50% of the maximum width k of the cover bracket 101.In the preferred embodiment, the minimum width 1 of the cover bracket 101 at the taper 102 corresponds to at least 10%, preferably at least 20%, particularly preferably at least 30%, preferably at least 40% of the maximum width k of the cover bracket 101.

[0285] As shown in Fig. A8, the locking lever 26 is arranged between the first longitudinal side 108 and the second longitudinal side 109 of the cover bracket 101 in a direction perpendicular to the longitudinal plane 31 of the guide rail 4. The locking lever 26 is preferably designed and arranged in the housing 2 such that, in a direction perpendicular to the longitudinal plane 31 of the guide rail 4, it does not project beyond either the first longitudinal side 108 or the second longitudinal side 109 at the widest point of the cover bracket 101. The outer contour 27 of the locking lever 26 is arranged completely between the first longitudinal side 108 and the second longitudinal side 109 of the cover bracket 101, at least in the region of the first end 103 of the cover bracket 101, in a direction perpendicular to the longitudinal plane 31 of the guide rail 4.The outer contour 27 of the locking lever 26 extends perpendicular to the longitudinal plane 31 of the guide rail 4, measured over a maximum width m, wherein the maximum width m of the outer contour 27 is smaller than the maximum width k of the cover bracket 101. The locking lever 26 is preferably rotatably mounted and has two actuating sections for left- and right-side use.

[0286] As shown in Figures A6 and A7, the housing 2 comprises a web 107. The web 107 extends from the first handle section 55 to the cover bracket 101. The web preferably extends from the underside 52 of the first handle section 55 to an upper side 105 of the cover bracket 101. The upper side 105 of the cover bracket 101 faces the underside 52 of the first handle section 55. In addition, the cover bracket 101 comprises a bottom side 106 facing away from the top side 105. The web 107 divides the opening 110 defined by the handle 9 and the cover bracket 101 into a first opening 110' and a second opening 110". The actuating element 10 is arranged between the web 107 and the first end 103 of the cover bracket 101. The actuating element 10 projects into the first opening 110'. The taper 102 of the cover bracket 101 is arranged between the web 107 and the second end 104 of the cover bracket 101.Accordingly, the taper 102 of the cover bracket 101 partially delimits the second opening 110".

[0287] As shown in Fig. A7, the cover bracket 101 has a length n. The length n corresponds to the distance, measured in the longitudinal direction 35 of the first handle 9, between the first end 103 of the cover bracket 101 and the second end 104 of the cover bracket 101. Furthermore, a distance p, measured in the longitudinal direction 35 of the first handle 9, between the web 107 and the first end 103 of the cover bracket 101 corresponds to at most 50%, in particular at most 40%, of the length n of the cover bracket 101. A distance o, measured in the longitudinal direction 35 of the first handle 9, between the web 107 and the second end 104 of the cover bracket 101 corresponds to at least 40%, preferably at least 50%, of the length n of the cover bracket 101.

[0288] As shown in particular in Fig. A6, the hand-held working device 1 comprises the protective device 80 for protecting the battery packs 21, 22. The protective device 80 is arranged on the fastening section 14 of the battery pack 21, 22.

[0289] As shown in Fig. A9, the first battery pack 21 extends in its longitudinal direction 85 (Fig. A7, Fig. A9) from a first end face 86 to a second end face 87. The second battery pack 22 also extends in its longitudinal direction 85' from a first end face 86' to a second end face 87'. The battery packs 21, 22 preferably have a substantially triangular cross-sectional contour 88, 88' with rounded corners 99, 99'. The battery packs 21, 22 also have a shoulder 100, 100', which serves as a stop when the battery packs 21, 22 are inserted into the fastening section 14 of the working device 1. A cross-sectional area of ​​the battery packs 21, 22 in a region between the second end face 87, 87' and the shoulder 100, 100' is larger than a cross-sectional area of ​​the battery packs 21, 22 in a region between the shoulder 100, 100' and the first end face 86, 86'.When the battery packs 21, 22 are installed in the fastening section 14 of the work tool 1, the first end face 86, 86' of the battery packs 21, 22 faces the fastening section 14. The second end face 87, 87' of the battery packs 21, 22 faces away from the fastening section 14. When the battery packs 21, 22 are plugged in, the second end faces 87, 87' form the free end faces of the battery packs 21, 22. However, when the battery packs 21, 22 are plugged in, the first end faces 86, 86' are covered by the fastening section 14. The first battery pack 21 and the second battery pack 22 each have a longitudinal axis 50, 50' running in the longitudinal direction 85, 85' of the respective battery pack 21, 22. The longitudinal axes 50, 50' of the battery packs 21, 22 run along the centroids of the cross-sectional planes of the battery packs 21, 22, which are aligned approximately parallel to the end faces 86, 86', 87, 87'.The first battery pack 21 and the second battery pack 22 are preferably of identical construction. Furthermore, Fig. A9 also shows the release elements 111, 111' of the battery packs 21, 22 for locking and unlocking the locking connection between the battery packs 21, 22 and the fastening section 14.

[0290] As shown in Figures A6 and A7, the protective device 80 comprises at least a first cover element 81. The min _,The at least first cover element 81 extends in the longitudinal direction 85 of the first battery pack 21 in the installed state at least as far as the second end face 87 of the first battery pack 21. The longitudinal direction 85, 85' of the battery packs 21, 22 in the installed state preferably corresponds to the insertion direction 35 of the battery packs 21, 22, in particular the longitudinal direction 43 of the first handle 9. The protective device 80 comprises a second cover element 82. The second cover element 82 extends in the longitudinal direction 85' of the second battery pack 22 in the installed state of the battery pack 22 at least as far as the second end face 87' of the second battery pack 22.

[0291] As shown in Fig. A6 to A8, the battery packs 21, 22 are inserted into the fastening section 14. In a preferred embodiment, the longitudinal axes 50, 50' of the battery packs 21, 22 lie in the longitudinal center plane 43 of the housing 2 when the battery packs 21, 22 are installed. In the preferred exemplary embodiment, the longitudinal axes 50, 50' of the battery packs 21, 22 are arranged parallel to the longitudinal plane 31 of the guide rail 4. As shown in particular in Fig. A7, when the battery packs 21, 22 are installed, the battery packs 21, 22 are arranged offset from one another in their longitudinal direction. The second end faces 87, 87' of the battery packs 21, 22 lie in different planes. In a transverse direction 91, the battery packs 21, 22 are arranged one above the other. The transverse direction 91 is oriented perpendicular to the longitudinal direction 85 of the first battery pack 21 and / or to the longitudinal direction 85' of the second battery pack 22. The transverse direction 91 lies in a plane that is oriented parallel to the longitudinal center plane 43 of the housing 2.In the preferred embodiment, the longitudinal axes 50, 50' of the battery packs 21, 22 are aligned parallel to one another when the battery packs 21, 22 are installed. As schematically indicated in Fig. A7, it may also be expedient for the fastening section 14 to be designed such that the longitudinal axes 50, 50' of the battery packs 21, 22 are arranged at an angle to one another when the battery packs 21, 22 are installed. The second battery pack 22 is schematically represented by a dashed line.

[0292] In the preferred embodiment, the longitudinal axes 50, 50' of the two battery packs 21, 22 lie in a plane that is aligned parallel to the longitudinal center plane 43 of the housing 2. Preferably, the longitudinal axes 50, 50' of the two battery packs 21, 22 lie in the longitudinal center plane 43 of the housing 2.

[0293] As shown in particular in Fig. A10, the protective device 80 comprises a third cover element 83 and a fourth cover element 84. As shown in Figures A7 and A8, the third cover element 83 and / or the fourth cover element 84 in the preferred embodiment extends in the longitudinal direction 85, 85' of the battery packs 21, 22 at least as far as the second end face 87, 87' of the battery packs 21, 22. As shown in Fig. A10, the first cover element 81 is arranged on a rounded corner 99 of the first battery pack 21 facing away from the second battery pack 22. The second cover element 82 is arranged on a rounded corner 99' of the second battery pack 22 facing away from the first battery pack 21. Preferably, the first cover element 81 and the second cover element 82 are each formed symmetrically to the longitudinal center plane 43.

[0294] As shown in Fig. A7, the third cover element 83 and the fourth cover element 84 are arranged in the transverse direction 91 between the battery packs 21, 22 (Fig. A7). As shown in Fig. A10, the third cover element 83 and the fourth cover element 84 are formed opposite one another with respect to a plane aligned parallel to the longitudinal plane 31 of the guide rail, in particular with respect to the longitudinal center plane 43. Particularly preferably, the third cover element 83 and the fourth cover element 84 are formed symmetrically with respect to the longitudinal center plane 43.

[0295] As shown in Figs. A6 and 7, the protective device 80 has recesses 90 between the cover elements 81, 82, 83, 84 for gripping the battery packs 21, 22. In particular, the release elements 111, 111' are freely accessible to the operator in the recesses 90, whereby the release elements 111, 111' can be actuated by the operator and the battery packs 21, 22 can be pulled out of the fastening device 14.

[0296] As shown in Figures A4 and A10, movement gaps 92 are provided between the cover elements 81, 82, 83, 84 and the battery packs 21, 22. The movement gaps 92 taper towards the first end face 86, 86' of the battery packs 21, 22. The movement gaps 92 provide particularly good protection for the battery packs 21, 22, since when a force acts on the protective device 80, the cover elements 81, 82, 83, 84 are elastically deformed in the region of the movement gaps 92 and can thereby dissipate the energy acting on the protective device 80 without any force acting on the battery packs 21, 22.

[0297] As shown in Fig. A1 1, the first cover element 81 and / or the second cover element 82 of the protective device 80 has a width i measured perpendicular to the longitudinal plane 31 of the guide rail 4. The width i corresponds to at least 30%, preferably at least 50% of the width perpendicular to the longitudinal plane 31 of the guide _,_,rail 4 measured width j of the first battery pack 21 and / or the second battery pack 22.

[0298] As shown in Fig. A7, the third cover element 83 and / or the fourth cover element 84 comprise a rear protective contour 93 and a front protective contour 94. The rear protective contour 93 borders the second end face 87 of the first battery pack 21 in the longitudinal direction 85 of the first battery pack 21, and the front protective contour 94 borders the second end face 87' of the second battery pack 22 in the longitudinal direction 85' of the second battery pack 22. The front protective contour 93 is connected to the rear protective contour 94 via a shoulder 95. The third cover element 83 and the fourth cover element 84 protect the mutually facing inner sides of the battery packs 21, 22.

[0299] As shown in Fig. A10, the third cover element 83 and / or the fourth cover element 84 have an outer side 97, 97' facing away from the battery packs 21, 22. The outer side 97, 97' has a concave curve 98, 98'. The concave curve 98, 98' projects between the battery packs 21, 22. As a result, the contours of the third cover element 83 and the fourth cover element 84 follow the outer contour of the battery packs 21, 22, thereby ensuring better protection of the battery packs 21, 22.

[0300] Figures A12 to A14 show several representations of the implement 1 according to Fig. A2, in which the fastening device 11 is shown. The fastening device 11 serves to secure the implement 1 and protect it against accidental dropping by the operator. For example, the implement 1 can be attached to one end of a rope via the fastening device 11, with the other end of the rope being held, for example, on a carrying device of the operator. If the operator drops the implement, it is secured by the rope, thus preventing the implement 1 from hitting the ground.

[0301] As shown in Figures A12 to A14, the fastening device 11 in the preferred embodiment is arranged on the handle housing 48 of the housing 2. The fastening device 11 has at least a first fastening element 12 for holding the working device 1 on the first fastening element 12. In the preferred embodiment, the fastening device 11 has a second fastening element 13 for holding the working device 1 on the second fastening element 13. The fastening device 11 is designed such that the working device 1 can be held on the first fastening element 12 and / or on the second fastening element 13. In the preferred embodiment, the fastening elements 12, 13 are designed as eyelets. Other designs of the fastening elements 12 may also be expedient.

[0302] As shown in particular in Fig. A12, the fastening device 11 is designed such that the fastening elements 12, 13 are located outside the housing 2. The fastening device 11 is designed such that the fastening elements 12, 13 are accessible to the operator. The first fastening element 12 is attached to the first housing half 15 of the housing 2. _, The second fastening element 13 of the fastening device 11 is arranged on the second housing half 16 of the housing 2.

[0303] As shown in particular in Fig. A12, the housing 2 has a first longitudinal outer side 28 and a second longitudinal outer side 29. The longitudinal outer sides 28, 29 are arranged opposite one another with respect to a plane oriented parallel to the longitudinal plane 31 of the guide rail 4, in particular with respect to the longitudinal center plane 43. The first fastening element 12 is arranged on the first longitudinal outer side 28 of the housing 2. The second fastening element 13 is arranged on the second longitudinal outer side 29 of the housing 2.

[0304] As shown in Fig. A12, the fastening device 11 comprises a base body 44. The base body 44 of the fastening device 11 is, as shown in Figs. A12 to 14, flat. The base body 44 can alternatively also have a different shape, for example, curved, bulbous, or similar. The base body 44 extends in a longitudinal direction 45 from a first longitudinal end 46 to a second longitudinal end 46'. As shown in Fig. A12, a fastening element 12, 13 is formed on at least one of the two longitudinal ends 46, 46', preferably on both longitudinal ends 46, 46' of the base body 44. Preferably, a fastening element 12, 13 is formed on each longitudinal end 46, 46'. The longitudinal direction 45 of the base body 44 is aligned approximately perpendicular to the longitudinal plane 31 of the guide rail 4. As shown in Fig.As shown in A12, wing-like projections 19, 20 are provided on the base body 44, wherein the wing-like projections 19, 20 are arranged between the fastening elements 12, 13. The wing-like projections 19, 20 of the base. _,_, body 44 extend transversely to the longitudinal direction 45 of the base body 44.

[0305] As shown in Figs. A12 to 14, the fastening device 11 is arranged in the fastening section 14 of the housing 2. The fastening device 11 is held between the first housing half 15 and the second housing half 16. In the preferred embodiment according to Figs. A12 to A14, the fastening device 11, in particular the base body 44 of the fastening device 11, is held in a form-fitting manner between the first housing half 15 and the second housing half 16. The two housing halves 15, 16 form a slot-like recess 17 in which the fastening device 11 is held in a form-fitting manner. In an alternative embodiment, it may also be expedient to fasten the base body 44 in the housing 2 in another way, for example by gluing, etc. The fastening device 11 is particularly preferably arranged between the first battery pack 21 and the second battery pack 22.The fastening device 11, in particular the base body 44 of the fastening section 14, is formed in one piece, allowing high forces to be transmitted via the base body to the housing 2. The wing-like projections 19, 20 are particularly advantageous in absorbing tilting moments of the base body 44 about the longitudinal axis 45 of the base body 44.

[0306] If the working device 1 is caught in a fall by a rope or by the fastening device 11, high forces must be transmitted from the fastening device 11 to the housing 2. This creates high loads on the housing 2. Therefore, a mechanical connection, in particular a screw connection 18, is provided to connect the first housing half 15 and the second housing half 16 near the fastening device 11. The distance between the mechanical connection and the fastening device 11 in the exemplary embodiment is less than 3 cm, preferably less than 2 cm, particularly preferably less than 1 cm. As a result, the forces transmitted from the fastening device 11 to the housing halves 15, 16 of the housing 2 can be supported by the mechanical connection. It can also be provided to provide several mechanical connections near the fastening device 11.

[0307] As shown in Fig. A2, the fastening device 11 is arranged between the rear end 7 of the housing 2 and the center of gravity S1 of the implement 1. When the implement 1 is suspended via its fastening device 11, for example, from a rope, the implement 1 points with its front end 6, in particular with its guide rail 4, toward the ground. Consequently, the operator can easily grasp the implement 1 from above.

[0308] As shown in Fig. A15, the second handle 57 of the housing 2 has a second handle section 58 for supporting the other hand of the operator. The second handle section 58 is formed on the motor housing 49 of the housing 2. The second handle section 58 is formed from a support surface of the motor housing 49, which extends along a longitudinal direction 59 of the second handle section 58 from a rear end 73 to a front end 72 of the handle section 58. The support surface has approximately the shape of a cylinder segment over its entire length, wherein the direction of the cylinder axis corresponds to the longitudinal direction of the second handle section 58. The diameter of the cylinder corresponds approximately to the width of the motor housing 49 measured perpendicular to the longitudinal plane 31. The cylinder segment corresponds approximately to a half cylinder.In an alternative embodiment of the work tool 1 (not shown in detail), it can also be provided that hollow-shaped depressions are formed on the support surface of the handle from section 58, which are intended for supporting and ergonomically positioning the individual fingers. As shown in Fig. A1 5, the limiting device 60 is provided between the second handle section 58 and the guide rail 4. The limiting device 60 has an elevation 61 extending at least within the longitudinal plane 31 of the guide rail 4, opposite the second handle section 58. Viewed perpendicular to the longitudinal plane 31 of the guide rail 4, the elevation 61 extends from the handle section 58 perpendicular to the longitudinal direction 59 of the handle from section 58 in the direction away from the handle section 58. The elevation 61 is designed in such a way that slipping from the second handle section 58 in the direction of the guide rail 4 is prevented.The elevation 61 is designed such that the elevation 61 forms a positive stop for a hand of the operator lying on the second handle section 58 in the direction of the guide rail 4.

[0309] As shown in Fig. A1 5, the limiting device 60 has an outer contour 62 when viewed perpendicular to the longitudinal plane 31 of the guide rail 4. The outer contour 62 of the limiting device 60 has a second

[0310] Handle section 58 has a first end 63 adjoining the first end 63 and a second end 64 adjacent to the guide rail 4. The elevation 61 is formed on the first end 63 of the outer contour 62. The elevation 61 consequently extends from the first end 63 of the outer contour 62 in the direction away from the handle section 58. The elevation 61 has a contact section 65. The contact section 65 is provided for the contact of the operator's hand, which lies on the second handle section 58. The contact section 65 of the elevation is designed such that the hand resting on the second handle section 58 comes into contact, in particular into positive contact, with the contact section 65 when the hand is moved in the longitudinal direction 59 of the second handle section 58. The contact section 65 of the elevation 61 thus forms a stop for the hand resting on the second handle 57 in the longitudinal direction 59 of the second handle from the cut 59 towards the guide rail 4.The contact section 68 is concave. The contact section 65 forms an undercut for the operator's hand resting on the contact section 65. The undercut of the contact surface 65 means that the operator's hand, when resting on the contact section 65 and moving the hand in a viewing direction perpendicular to the longitudinal plane 31 and perpendicular to the longitudinal direction 59 away from the handle section 58, remains suspended on the contact section 65. The contact section 65 has the shape of a hollow into which the operator's hand rests, resting on the second handle section 58 of the second handle 57, when moving in the longitudinal direction 59 of the handle from section 58.

[0311] As shown in Fig. A1 5, an edge 68 is formed on the contact section 65. The edge 68 is formed by a groove 69. The groove 69 forms the housing boundary between the motor housing 49 and the central housing 47. The working device 1 comprises a lubricant tank 70 for supplying the saw chain 5 with lubricant. The lubricant tank 70 is part of the housing 2, in particular part of the central housing 47. The limiting device 60 is preferably formed at least partially from the wall of the lubricant tank 70.

[0312] As shown in Fig. A15, the elevation 61, viewed perpendicular to the longitudinal plane 31 of the guide rail 4, has a height h measured perpendicular to the longitudinal direction 59 of the second handle from the section 58 at the first end 63 of the outer contour 62. The height h corresponds to at least 15%, in particular at least 20%, preferably approximately 25% of a length l of the second handle section 58 measured in the longitudinal direction 59 of the second handle section 58. The length l corresponds to the distance between the front end 72 and the rear end 73 of the handle section 58.

[0313] As shown in Fig. A1 5, the concave contact section 65 ends at a further edge 74 of the elevation 61. At this further edge 74, the elevation 61 has its maximum height relative to the handle section 58. The contact section 65 is designed such that, viewed perpendicular to the longitudinal plane 31 of the guide rail 4, a tangent 75 at the contact section 65 in the edge 74 intersects a straight line in the direction of the longitudinal direction 59 of the second handle from the section 58 at an angle a. The angle a is open towards the second handle section 58 and is at most 90°, preferably at most 80°, in particular approximately 75°.

[0314] Preferably, the angle a is more than 30°.

[0315] As shown in Fig. A1 5, the housing 2 is open at the top in the region of the second handle section 58. Accordingly, the housing 2 is open away from the handle section 58 when viewed in the direction perpendicular to the longitudinal plane 31 of the guide rail 4 in the direction perpendicular to the longitudinal direction 59 of the second handle section 58. The operator can therefore easily operate the second handle section 58 from above. In an alternative embodiment not shown in detail, the contact section 65 is provided with an anti-slip coating. In a preferred embodiment, a handle detection device (not shown in detail) is provided on the second handle 57. The handle detection device can be mechanical and / or electrical and / or electronic. Electronic handle detection is preferably designed as resistive, capacitive or inductive handle detection.The mechanical and / or electrical signal from such a handle position detection can be used as an enable signal for actuating the drive motor 3. Such a signal can also be used in conjunction with a dead man's switch. A person skilled in the art can use such a signal in various ways for functions known from the prior art.

[0316] In Fig. A1 6, the tool according to the invention is shown in a state with the battery packs 21, 22 removed. Thus, the battery packs 21, 22 can be charged in external charging stations and then reinserted into the tool 1.

[0317] As shown in particular in Fig. A1 6, it may be provided to provide raised elements 114 on the lubricant tank 70. The raised elements 114 form elevations extending from the lubricant tank 70. In the present exemplary embodiment, three raised elements 114 are provided. In the present case, the raised elements 114 have a substantially triangular outer contour with respect to the viewing direction perpendicular to the longitudinal plane 31 of the guide rail 4. Other outer contours may also be expedient. In the preferred exemplary embodiment, the raised elements 114 are arranged in a row one behind the other with respect to the direction of the longitudinal center axis 30. The three raised elements

[0318] 114 lie in the longitudinal center plane 43. Other arrangements on the top side of the lubricant tank 70 may also be appropriate.

[0319] As also shown in Fig. A16, the working device 1 preferably comprises a connection unit 115. The connection unit 115 is designed to store, transmit, and / or receive data of the working device 1. Such data can be, for example, the operating time of the working device 1. If a predetermined threshold value for the operating time is reached, the need for maintenance can be indicated to the operator. Furthermore, the connection unit can

[0320] 115 also the location of the work device 1 can be determined and communicated to other devices.

[0321] Fig. A17 shows an alternative embodiment of the working device 1. This embodiment differs from the working device 1 shown in the previous figures only in that no protective device 80 is provided for the battery packs 21, 22. Accordingly, the housing 2 ends with the fastening section 14, into which the battery packs 21, 22 are inserted.

[0322] Figures A18 to A22 show a further embodiment of the electric, hand-held tool 1. The same reference numerals indicate the same components of the tool 1. The hand-held tool 1 comprises the housing 2 and the drive motor 3 arranged in the housing 2, wherein the fastening section 14 for receiving the first battery pack 21 for supplying the drive motor 3 with electrical energy is provided at the rear end 7 of the housing 2. Furthermore, the tool 1 comprises at least the first battery pack 21 and in particular the second battery pack 22, wherein the first battery pack 21 and in particular the second battery pack 22 are held on the fastening section 14.The first battery pack 21 and in particular the second battery pack 22 extend in their longitudinal direction 85, 85' from their first end face 86, 86' to their second end face 87, 87', wherein the first end face 86, 86' of the first battery pack 21 and in particular of the second battery pack 22 faces the fastening section 14 and the second end face 87, 87' of the first battery pack 21 and in particular of the second battery pack 22 faces away from the fastening section 14. The working device 1 comprises a fixing device 130, wherein the fixing device 130 at least partially encompasses the second end face 87 of the first battery pack 21 and in particular of the second battery pack 22, wherein the fixing device 130 is detachably held on the housing 2, in particular on the fastening section 14.

[0323] As shown in Fig. A19, the fixing device 130 comprises a first fixing section 131 and a second fixing section 132. The first fixing section 131 forms a receiving space in which the first battery pack 21 is arranged. The fixing device 130 rests with its first fixing section 131 on the second end face 87 of the first battery pack 21 and in particular on the long side of the first battery pack 21. The second fixing section 132 forms a further receiving space in which the second battery pack 22 is arranged. The fixing device 130 rests with its second fixing section 132 on the second end face 87' of the second battery pack 22 and in particular on the long side of the second battery pack 22. The second end face 87 of the first battery pack 21 is at least partially covered by the first fixing section 131. The second end face 87' of the second battery pack 22 is at least partially covered by the second fixing section 132.In an alternative embodiment of the working device 1, it can also be provided that the second end faces 87, 87' of the two battery packs 21, 22 are completely covered by the fixing sections 131, 132.

[0324] As shown in Fig. A19, the fixing device 130 comprises a central section 133. The first fixing section 131 and the second fixing section 132 are connected to one another via the central section 133. In the present embodiment, the fixing device 130 extends in the longitudinal direction 85, 85' of the battery packs 21, 22 only in the region of the battery packs 21, 22 themselves, without contacting the fastening section 14. The battery packs 21, 22 protrude from the fastening section 14 with a free end. The fixing device 130 extends in the longitudinal direction 85, 85' of the battery packs 21, 22, in particular over at least 50%, preferably over 70%, in particular over 85% of the free end of the battery packs 21, 22. It can also be provided that the fixing device 130 extends up to the fastening section 14 and contacts it.

[0325] As shown in Fig. A19, the fixing device 130 is held on the housing 2 via a positioning unit 134, which in this case is designed as a retaining cord. The positioning unit 134 is fastened to the fastening device 11. The positioning unit 134 can also comprise an eyelet, in particular an elastic eyelet, which is suspended from the fastening device 11 and to which the retaining cord is fastened. The retaining cord is shown schematically in dashed lines in Fig. A19. As shown in Figures A19, A20 and A21, a retaining guide 135 is formed on the central section 133. The retaining guide 135 is formed from a first opening 136 through which the retaining cord is threaded from the receiving space to the outside. The retaining cord then runs along a long side of the fixing device 130 in a first groove 137 assigned to the retaining guide 135.A second opening 138 is provided in the groove 137, into which the retaining cord is threaded and extends to the other longitudinal side of the fixing device 130. On the other longitudinal side of the fixing device 130, a first opening 136', a groove 137, and a second opening 138' are also provided, mirror-symmetrically, through which the retaining cord extends back.

[0326] The retaining cord is preferably elastic. To release the securing device 130 from the battery packs 21, 22, it is pulled away from the battery packs 21, 22 in the longitudinal direction 85, 85' of the battery packs 21, 22. The securing device 130 can then hang loosely on the fastening device 11. The battery packs 21, 22 can now be detached from the fastening section 14 and charged or exchanged for other battery packs 21, 22. After the battery packs 21, 22 are reattached to the fastening section 14, the securing device 130 can be reattached to the second end faces 87, 87' of the battery packs 21, 22 by stretching the retaining cord.

[0327] Fig. A22 shows an alternative embodiment of the fixing device 130. As an alternative to the holding guide 135, this device has a first opening 136 on at least two longitudinal sides through which the holding cord can be threaded.

[0328] In an alternative embodiment, the fixing device 130 can also extend to the fastening section 14 and partially overlap it. The overlap of the fastening section 14 by the fixing device 130 can be designed in such a way that a clamping effect is created, by which the fixing device 130 is held on the fastening section 14. In such an embodiment, a positioning unit 134 is not required, but can also be used additionally.

[0329] The fixing device 130 is preferably formed in one piece. The fixing device 130 is made of a plastic, in particular an elastomer. Thus, the fixing device 130 serves to protect the first battery pack 21 and in particular the battery pack 22 from impacts, for example, when the working device 1 falls to the ground.

[0330] Fig. B1 shows a perspective view of a working device 1 designed according to the invention, using the example of a chainsaw. However, a hedge trimmer, a brush cutter, or the like can also be provided. The working device 1 is shown here in a storage position 2 on a storage surface 3 as a reference surface. During operation, however, it can also be moved into various other positions.

[0331] The working device 1 comprises a tool 12, which here is designed as a saw chain rotating around a guide rail 11, and which, during operation, is driven in its rotating motion by a drive motor 10 (only indicated here). The drive motor 10 can be an internal combustion engine and, in the illustrated embodiment, is an electric motor for battery operation. Alternatively, mains voltage operation is also possible.

[0332] The working device 1 comprises a housing 21, at the rear end facing the user, a handle 4 is formed as part of the housing 21. A handle tube 5 is also attached towards the front, towards the tool 12. Between the rear handle 4 and the front handle tube 5, a battery holder 9 for a replaceable battery (not shown) for supplying power to the working device 1 is formed in the housing 21. In front of the handle tube 5 towards the tool 12 is a hand guard 8. In the area of ​​the hand guard 8, a loudspeaker 45 of an optional noise generator for adjusting the operating noise is attached.

[0333] On its rear handle 4, the implement 1 is provided with a first control element 6 for controlling the drive motor 10. The first control element 6 serves to control the power of the drive motor 10, whereby a power setting between "off" and "full load" can be continuously adjusted via appropriate control electronics. Alternatively, a simple on / off switch may also be suitable. A second control element 7, also attached to the handle 4, serves as a locking element for the first control element 6. When the second control element 7 is not actuated, the first control element 6 cannot be pressed in, thus preventing accidental power output from the drive motor 10. Only when the second control element 6 is actively actuated can the first control element 6 be pressed in, resulting in the drive motor 10 starting up and driving the tool 12.

[0334] Fig. B2 shows a perspective interior view of the handle 4 according to Fig. B1, whereby, to illustrate the internal mechanical structure, a half-shell of the handle 4 facing the viewer is removed and not shown. Fig. B3 shows the arrangement according to Fig. B2 in a longitudinal section for further clarification. , position, whereby the following explanations refer to the overview of Fig. B2 and 3.

[0335] The first operating element 6 is pivotally mounted on a bearing pin with a pivot axis 16 and is pressed into the unactuated position 14 shown here by a return spring 20. The pivot axis 16 of the first operating element 6 lies transversely to the longitudinal direction of the working device 1 according to Fig. B1. An operating section of the first operating element 6, accessible to the user, projects downwards from the handle 4 formed as part of the housing 21. In its lower area in the direction of gravity, the first operating element 6 is provided with an operating element opening 40, which allows dirt to escape from the area of ​​the second operating element 7.

[0336] The second operating element 7 has a bearing axis 35 which extends from a first, front bearing pin 23 to a second, rear bearing pin 24. The two bearing pins 23, 24 are pivotally mounted in corresponding bearing openings in the housing 21 and thus define a pivot axis 17 of the second operating element 7. The pivot axis 17 of the second operating element 7 runs approximately parallel to the longitudinal axis of the implement 1 according to Fig. B1. Fig. B11 shows a front view of the arrangement described here. A comparison of Figs. B2, 3 and 11 shows that the pivot axis 16 of the first operating element 6 and the pivot axis 17 of the second operating element 7 are inclined towards one another and, in the preferred embodiment, run perpendicular to one another.

[0337] The second operating element 7 has at least one operating section 26, here two operating sections 26, which are provided for actuation of the second operating element 7 by the operator. The operating sections 26 have a connection area 27, by means of which they are connected, preferably in one piece, to the remaining sections of the second operating element 7. The housing 21 is provided with an opening 22 in the area of ​​the handle 4. The two operating sections 26 protrude from this connection area 27 through the opening 22 onto the outside of the housing 21.

[0338] The second operating element 7 is shown here in an unactuated position 18. The arrangement comprises a spring 13, which interacts with an actuating contour 30 of the second operating element 7 and thereby holds the second operating element 7 in this unactuated position 18. Particularly in Fig. B3, it can be seen that the spring 13 has a clamping section 28, which is held fixedly to the housing. This is adjoined by a central region 41 of the spring 13. At its opposite, rear end, the spring 13 is provided with an actuating section 29, which rests on the actuating contour 30 and thereby exerts the desired holding and restoring effect on the second operating element 7.

[0339] Finally, it can be seen that the second operating element 7 comprises a cover section 32, which in the form of a cylindrical section partially rotates around the pivot axis 17. The operating sections 26 are integrally connected or molded onto this cover section 32 via their connection areas 27. The opening 22 is at least partially covered on the inside of the housing 21 by the cover section 32. From a comparison of Figs. B2 and 3 with Figs. B5 and 9, it can be seen that the opening 22 is completely covered in all positions of the second operating element 7, both in the circumferential direction and in the direction of the pivot axis 17.

[0340] Figs. B4 and 5 show the arrangement according to Figs. B2 and 3, each in a side view, viewed parallel to the pivot axis 16 of the first operating element 6. It can be seen that, in this viewing direction, the first operating element 6 is arranged below the bearing pin 23, while the spring 13 is located above it. In other words, the first operating element 6 and the spring 13 are arranged on opposite sides of the bearing pin 23 of the second operating element 7 in the aforementioned viewing direction. In the direction of the pivot axis 17 of the second operating element 7, the connection area 27 of the operating sections 26 extends along an operating section area 38 of the implement 1. Perpendicular to the pivot axis 17 of the second operating element 7 are two planes 36, 37, between which the connection area 27 of the operating sections 26 lies.In other words, the connection areas 27 of the operating sections 26 extend from the first plane 36, which runs perpendicular to the pivot axis 17, to the second plane 37, which also runs perpendicular to the pivot axis 17, whereby they do not extend beyond the aforementioned planes 36, 37. The planes 36, 37 further enclose the operating section area 38 of the implement 1 (Fig. B1).

[0341] Furthermore, when viewed together in Figs. B4 and 5, it can be seen that, relative to the direction of the pivot axis 17 of the second operating element 7, the clamping section 28 and the actuating section 29 of the spring 13 extend at least partially on opposite sides of the operating section region 38. In the preferred embodiment shown, the clamping section 28 and the actuating section 29 are arranged completely outside the operating section region 38 and on opposite sides thereof.

[0342] The spring 13, in turn, extends between the cover section 32 and the pivot axis 17. The cover section 32 covers the central region 41 of the spring 13 toward the outside of the housing 21. In conjunction with Fig. 11B, it can also be seen that the actuating contour 30 of the second operating element 7 and the cover section 32 define an opening 42 through which the spring 13 protrudes. In other words, the spring 13 extends longitudinally through the second operating element 7.

[0343] Figs. B6 to 9 show the same arrangement in the same views as Figs. B2 to 5, with the difference that the second operating element 7, starting from the inoperative position 18 according to Fig. B2, is now pivoted about the pivot axis 17 according to an arrow 44 into an actuated position 19 (Fig. B6). This is done by the user by finger pressure on one of the two operating sections 26. In the actuated position 19 (Fig. B6) of the second operating element 7, the first operating _, element 6, starting from its unactuated position 14, pivots or presses into an actuated position 15 about its pivot axis 16 against the force of the return spring 20. First of all, it can be seen from Figs. B2 to 5 that the second operating element 7 in its unactuated position 18 shown there prevents a movement of the first operating element _, elements _,tes 6 in the direction of the actuated position 15 (Fig. B6). For this purpose, the second operating element 7 is provided with a downwardly projecting extension 25, which cooperates with a locking section 31 of the first operating element 6. In the actuated position 19 according to Figs. B6 to 9, however, the extension 25 is pivoted so far to the side due to the pivoting movement of the second operating element 7 that it no longer overlaps the locking section 31 of the first operating element 6. The first operating _, nelement 6 can be pressed into the actuated position 15 without the locking section 31 colliding with the extension 25.

[0344] Furthermore, it can be seen that the spring 13 acting on the second operating element 7 is designed as a leaf spring. From a view of Figs. B5 and 9 together, it can be seen that the leaf spring has a center plane 33 with which it emerges from the housing clamping in the region of its clamping section 28. In this case, an inclined position of the center lifting plane 33 relative to the pivot axis 17 of the second operating element 7 is provided in such a way that the center plane 33 forms an angle α with the pivot axis 17. The angle α is preferably at least 10° and, in the embodiment shown, is _, play of at least 15°. Starting from the clamping section 28, the leaf spring runs along a bending line due to its preload, so that in the area of ​​the longitudinally opposite end, in the bent-up state according to Fig. B9, it runs approximately parallel and at a short distance from the bearing axis 35.

[0345] From a view of Figs. B6 and 7 in particular, it can be seen that the actuating section 29 of the spring 13 has at least one contact section 39 in the contact area with the actuating contour 30, here two contact sections 39 lying laterally opposite one another. The contact sections 39 are separated in the circumferential direction from the pivot axis 17 by the actuating _, con _, ture 30 is bent away. In addition, the actuating section 29 with its contact sections 39 is arranged outside the cover section 32 in the direction of the pivot axis 17, so that the bent-up contact sections cannot collide with the cover section 29 even in the raised state according to Fig. B9.

[0346] From a view of Figs. B2 and 6 together, it can be seen that the actuating contour 30 of the second operating element 7 has at least one convexly curved section 43, against which the spring 13 rests with its actuating section 29, particularly in the actuated position 19 (Fig. B6). In the preferred embodiment shown, the actuating contour 30 comprises a convexly curved section 43 on each side of the pivot axis 17. The two convexly curved sections 43 are mirror-symmetrical to one another. In the unactuated position 18 of the second operating element _,element 7 according to Fig. B2, the spring 13 with its actuating section 29 lies centrally between and against both convexly curved sections 43. The bilateral arrangement of the convexly curved sections 43 allows actuation of the second operating element 7 not only in the direction of arrow 44 (Fig. B6) in order to reach an actuated position 19. Rather, a pivoting movement of the second operating element 7 is also possible in the opposite direction of arrow 44 in order to reach an actuated position 19. Both actuated positions have the effect that the locking of the first operating element 6 by means of the extension 25 is canceled.

[0347] Furthermore, Fig. B6 shows that when the second operating element 7 is pivoted into the respective actuated position 19, the actuating section 29 of the spring 13 slides with one of its curved contact sections 39 on the corresponding, convexly curved section 43 to allow a free pivoting movement. From the comparison of Figs. B5 and 9, it can be seen that the actuating section 29 of the spring 13 sliding on the actuating contour 30 is lifted against its spring force, thereby increasing the effective spring force. The convex shape of the curved sections 43 causes only an initially high increase in force, which increases only slightly with progressive deflection. Since, in the actuated position 19, the actuating section 29 presses eccentrically to the pivot axis 17 onto the curved section 43 (Fig. B6), a restoring moment is generated which moves the second operating element 7 from the actuated position 19 (Fig.B6) automatically returns to the unactuated position 18 (Fig. B2).

[0348] From the rear view according to Fig. B10 it can be seen that one of the two operating sections 26, in the unactuated position 18 (Fig. B2), projects straight upwards at a right angle to the corresponding tangent of the cover section 32. The other operating section 26 projects obliquely to the side and is ergonomically offset. However, in the connection area 27 it forms an angle ß of at least 30° with the corresponding tangent of the cover section 32. In the exemplary embodiment shown, this angle ß is 90°, just as in the vertical operating section 26. From the same view it can also be seen that the cover section 32 extends in an arc around the pivot axis 17 over an angular range y of at least 120°, here slightly more than 180°.

[0349] Fig. B12 shows a perspective view of a variant of the handle area according to Figs. B2 to 11, in which the opening 22 in the housing 21 is enlarged towards the right side to create space for an optional third operating section 26 of the second operating element 7. This optional operating section 26, which is only indicated schematically and in dashed lines here, can, for example, be designed mirror-symmetrically to the opposite bent operating section 26 in order to create additional accessibility.

Claims

Claims A wood cutter with a housing (2) and a drive motor (3), wherein the drive motor (3) drives a saw chain (5) guided in a guide groove of a guide rail (4) via a drive sprocket, wherein the guide rail (4) is arranged at a front end (6) of the housing (2) and has a longitudinal plane (31) spanned by the guide groove, wherein a fastening section (14) for receiving a first battery pack (21) for supplying the drive motor (3) with electrical energy is provided at a rear end (7) of the housing (2), wherein the housing (2) comprises a first handle (9) for supporting a hand of the operator, wherein in particular the first handle (9) is assigned an actuating element (10) for actuating the drive motor (3), characterized in that the fastening section (14) is provided for receiving a second battery pack (22), wherein the fastening section (14) is attached to the housing (2) in such a way,in particular at least on the first handle (9), such that in a state of the brush cutter (1) in which the first battery pack (21) and the second battery pack (22) are arranged on the fastening section (14), a center of gravity (S1) of the brush cutter (1) lies in the first handle (9). Brush cutter according to claim 1, characterized in that the guide rail (4) has a longitudinal central axis (30) and a transverse plane (32) oriented orthogonally to the longitudinal plane (31), wherein the longitudinal central axis (30) lies in the longitudinal plane (31) and in the transverse plane (32), wherein the transverse plane (32) of the brush cutter (1) is divided into an upper section (36) comprising the drive motor (3) and a lower section (37).

3. A wood cutter according to claim 2, characterized in that the center of gravity (Sl) of the wood cutter (1) lies in the lower section (37) of the wood cutter (1).

4. A wood cutter according to claim 2 or 3, characterized in that the fastening section (14) of the housing (2) is located in the lower section (37) of the wood cutter (1).

5. A wood cutter according to one of claims 1 to 4, characterized in that the drive motor (3) has a rotation axis (33), and the rotation axis (3) runs parallel to the longitudinal plane (31) of the guide rail (4) or lies in the longitudinal plane (31) of the guide rail (4).

6. A wood cutter according to one of claims 1 to 5, characterized in that the fastening section (14) is designed such that the battery packs (21, 22) can be inserted into the fastening section (14) in an insertion direction (34).

7. A wood cutter according to claim 6, characterized in that the insertion direction (34) corresponds substantially to the longitudinal direction (35) of the first handle (9).

8. A wood cutter according to one of claims 1 to 7, characterized in that the fastening section (14) is designed such that in a state in which the first battery pack (21) and the second battery pack (22) are inserted, a distance (a) measured in the direction of the longitudinal center axis (30) between a center of gravity (SA1) of the first battery pack (21) and the center of gravity (S1) of the I ll shrub cutter (1) is greater than a distance (b) measured in the longitudinal direction (30) between a center of gravity (SA2) of the second battery pack (22) and the center of gravity (Sl) of the shrub cutter (1).

9. A brush cutter according to any one of claims 1 to 8, characterized in that the fastening section (14) is designed such that, in a state in which the first battery pack (21) and the second battery pack (22) are inserted into the brush cutter (1), a distance (c) measured perpendicular to the transverse plane (32) between the center of gravity (SA1) of the first battery pack (21) and the center of gravity (Sl) of the brush cutter (1) is smaller than a distance (d) measured perpendicular to the transverse plane (32) between the center of gravity (SA2) of the second battery pack (22) and the center of gravity (Sl) of the brush cutter (1).

10. A wood cutter according to one of claims 1 to 9, characterized in that the actuating element (10) is arranged on the first handle (9).

11. A wood cutter according to claim 10, characterized in that the actuating element (10) is designed as a lever pivotable about a first pivot axis (38), wherein the actuating element (10) has an outer contour (25) with a maximum first radius (rl) with respect to the first pivot axis (38), wherein the first radius (rl) is greater than the distance (e) between the center of gravity (Sl) of the wood cutter (1) and the first pivot axis (38).

12. A wood cutter according to one of claims 1 to 11, characterized in that the housing (2) has a longitudinal center plane (43) running parallel to the longitudinal plane (31), wherein the longitudinal center plane (43) the housing (2) cuts in the middle, whereby the center of gravity (Sl) of the brush cutter (1) lies almost in the longitudinal center plane (43) of the housing (2).

13. A wood cutter according to any one of claims 1 to 12, characterized in that the housing (2) comprises a second handle (57) for supporting another hand of the operator, and wherein the center of gravity (S1) of the wood cutter (1) is formed between the second handle (57) and the actuating element (10) associated with the first handle (9).

14. A wood cutter according to one of claims 1 to 13, characterized in that the distance between the actuating element (10) and the center of gravity (Sl) of the wood cutter (1) is not greater than 3 cm, preferably not greater than 2 cm.

15. A brush cutter with a housing (2) and a drive motor (3), wherein a fastening section (14) for receiving a first battery pack (21) for supplying the drive motor (3) with electrical energy is provided at a rear end (7) of the housing (2), wherein the housing (2) comprises a handle housing (48) with a first handle (9) for supporting a hand of the operator, wherein an actuating element (10) for actuating the drive motor (3) is assigned to the first handle (9), characterized in that the brush cutter (1) has a fastening device (11), which in particular comprises a base body (44), wherein the fastening device (11) has at least one first fastening element (12) for holding the brush cutter (1) on the first fastening element (12), wherein the first fastening element (12) is designed in particular as an eyelet, and in that the fastening device (11) is arranged on the handle housing (48). Wood cutter according to claim 15, characterized in that the fastening device (11) has a second fastening element (13) for holding the wood cutter (1) on the second fastening element (13), wherein the second fastening element (13) is designed in particular as an eyelet.A wood cutter according to any one of claims 15 to 16, characterized in that the wood cutter (1) comprises a guide rail (4) with a guide groove and a saw chain (5) rotating in the guide groove, wherein the guide rail (4) has a longitudinal plane (31) spanned by the guide groove, and in that the housing (2) has a first longitudinal outer side (28) and a second longitudinal outer side (29), wherein the longitudinal outer sides (28, 29) are arranged opposite one another with respect to a plane aligned parallel to the longitudinal plane (31) of the guide rail (4), wherein the first fastening element (12) is arranged on the first longitudinal outer side (28) and the second fastening element (13) is arranged on the second longitudinal outer side (29).A brush cutter according to any one of claims 15 to 17, characterized in that the fastening device (11) is arranged in the fastening section (14) of the housing (2), wherein the fastening section (14) is part of the handle housing (47). A brush cutter according to any one of claims 15 to 18, characterized in that the fastening section (14) is provided for receiving a second battery pack (22), and in that the fastening device (11) is arranged between the first battery pack (21) and the second battery pack (22) when the brush cutter (1) is in a state in which the first battery pack (21) and the second battery pack (22) are inserted.

20. A wood cutter according to one of claims 15 to 19, characterized in that the fastening device (11) is formed in one piece.

21. A wood cutter according to one of claims 15 to 20, characterized in that the housing (2) comprises a first housing half (15) and a second housing half (16), wherein the fastening device (11) is held, in particular in a form-fitting manner, between the first housing half (15) and the second housing half (16).

22. A wood cutter according to one of claims 15 to 21, characterized in that the base body (44) of the fastening device (11) is flat.

23. A wood cutter according to one of claims 15 to 22, characterized in that the base body (44) extends in a longitudinal direction (45), wherein a fastening element (12, 13) is formed on at least one of the longitudinal ends (46, 46') of the base body (44), preferably a fastening element (12, 13) is formed on each of the longitudinal ends (46, 46') of the base body (44).

24. A wood cutter according to one of claims 21 to 23, characterized in that adjacent to the fastening device (11), the first housing half (15) and the second housing half (16) are connected to one another via a mechanical connection, in particular a screw connection (18).

25. A wood cutter according to any one of claims 15 to 24, characterized in that the fastening section (14) is provided for receiving a second battery pack (22), wherein the wood cutter (1) in a state in which the first battery pack (21) and the second battery pack (22) are inserted, the brush cutter (1) has a center of gravity (Sl), and the fastening device (11) is arranged between the center of gravity (Sl) of the brush cutter (1) and the rear end (7) of the housing (2).

26. A wood cutter with a housing (2) and a drive motor (3), wherein the housing (2) comprises a first handle (9) with a first handle section (55) for supporting a hand of the operator, wherein the first handle (9) is assigned an actuating element (10) for actuating the drive motor (3), and wherein the handle section (55) has an upper side (51) and a lower side (52) facing away from the upper side (51), characterized in that the housing (2) comprises a cover bracket (101), wherein the cover bracket (101) extends from its first end (103) to its second end (104) along the lower side (52) of the first handle section (55), in particular substantially parallel to the lower side of the first handle section, and wherein the cover bracket (101) has a taper (102) in the direction of its second end (104).

27. A brush cutter according to claim 26, characterized in that the first end (103) of the cover bracket (101) adjoins a motor housing (49) of the housing (2) and / or a central housing (47) of the housing (2).

28. A wood cutter according to claim 26 or 27, characterized in that the wood cutter (1) comprises a guide rail (4) with a guide groove and a saw chain (5) guided in the guide groove, and in that the cover bracket (101) has a maximum width (k) measured perpendicular to a longitudinal plane (31) of the guide rail (4) spanned by the guide groove of the guide rail (4) and at its taper (102) has a minimum width (1), wherein the minimum width (1) corresponds to at most 70%, preferably at most 60%, in particular approximately 50% of the maximum width (k) of the cover bracket (101).

29. A wood cutter according to claim 28, characterized in that the minimum width (1) of the cover bracket (101) at the taper (102) corresponds to at least 10%, preferably at least 20%, particularly preferably at least 30%, preferably at least 40% of the maximum width (k) of the cover bracket (101).

30. A brush cutter according to claim 28 or 29, characterized in that a locking lever (26) is provided for locking and releasing the actuating element (10), wherein the locking lever (26) has an outer contour (27) which extends over a width (m) perpendicular to the longitudinal plane (31) of the guide rail (4), wherein the width (m) is smaller than the maximum width (k) of the cover bracket (101).

31. A wood cutter according to claim 30, characterized in that the cover bracket (101) extends from a first longitudinal side (108) to a second longitudinal side (109), wherein the outer contour (27) of the locking lever (26) in the direction perpendicular to the longitudinal plane (31) of the guide rail (4) is arranged completely between the first longitudinal side (108) and the second longitudinal side (109) of the cover bracket (101) at least in the region of the first end (103) of the cover bracket (101).

32. A wood cutter according to any one of claims 26 to 31, characterized in that the actuating element (10) is arranged between the first handle portion (55) and the cover bracket (101). Brush cutter according to one of claims 26 to 32, characterized in that the cover bracket (101) has an upper side (105) facing the underside (52) of the first handle section (55), wherein the housing (2) comprises a web (107), wherein the web (107) extends from the upper side (105) of the cover bracket (101) to the underside (52) of the handle section (55). Brush cutter according to claim 33, characterized in that the actuating element (10) is arranged between the web (107) and the first end (103) of the cover bracket (101). Brush cutter according to claim 33 or 34, characterized in that the taper (102) of the cover bracket (101) is arranged between the web (107) and the second end (104) of the cover bracket (101).A brush cutter according to one of claims 26 to 35, characterized in that a fastening section (14) for receiving a first battery pack (21) for supplying the drive motor (3) with electrical energy is provided at a rear end (7) of the housing (2). A brush cutter according to claim 36, characterized in that the fastening section (14) is provided for receiving a second battery pack (22). A brush cutter according to claim 36 or 37, characterized in that the second end (104) of the cover bracket (101) is formed by the fastening section (14) of the housing (2). A wood cutter with a housing (2) and a drive motor (3), wherein the drive motor (3) drives a saw chain (5) guided in a guide groove of a guide rail (4) via a drive sprocket, wherein the guide rail (4) is arranged at a front end (6) of the housing (2) and has a longitudinal plane (31) spanned by the guide groove, wherein the housing (2) comprises a first handle (9) with a first handle section (55) for supporting one hand of the operator, wherein the first handle (9) is assigned an actuating element (10) for actuating the drive motor (3), wherein the housing (2) comprises a second handle (57) with a second handle section (58) for supporting the other hand of the operator, characterized in that a limiting device (60) is provided between the second handle section (58) and the guide rail (4),wherein the limiting device (60) has a raised portion (61) extending at least within the longitudinal plane opposite the second handle portion (58), wherein the raised portion (61) is designed such that slipping from the second handle portion (58) in the direction of the guide rail (4) is prevented. A brush cutter according to claim 39, characterized in that the raised portion (61) is designed such that the raised portion (61) forms a positive stop for a hand of the operator resting on the second handle portion (58) in the direction of the guide rail (4). A brush cutter according to claim 39 or 40, characterized in that, viewed perpendicular to the longitudinal plane (31), the limiting device (60) has an outer contour (62), wherein the outer contour (62) of the limiting device (60) has a second, A first end (63) adjoining the handle portion (58) and a second end (64) adjacent to the guide rail (4). A brush cutter according to claim 41, characterized in that the elevation (61) is formed on the first end (63) of the outer contour (62). A brush cutter according to one of claims 39 to 42, characterized in that the elevation (61) has a concave contact portion (65) adjoining the second handle portion (58). A brush cutter according to claim 42 or 43, characterized in that the contact portion (65) forms an undercut for a hand of the operator resting against the contact portion (65).A brush cutter according to any one of claims 41 to 44, characterized in that the elevation (61), viewed perpendicular to the longitudinal plane (31), has a height (h) measured perpendicular to the second handle section (58) at the first end (63) of the outer contour (62), wherein the height (h) corresponds to at least 15%, in particular at least 20%, preferably approximately 25% of a length (l) of the second handle section (58) measured in the longitudinal direction (59) of the second handle from the section (58). A brush cutter according to any one of claims 39 to 45, characterized in that the housing (2) comprises a lubricant tank (70) for supplying the saw chain (5) with lubricant, wherein the limiting device (60) at least partially encloses the lubricant tank (70).

47. A wood cutter according to one of claims 39 to 46, characterized in that the housing (2) is open upwards in the region of the second handle section (58).

48. A wood cutter according to one of claims 43 to 47, characterized in that the contact section (65) is provided with an anti-slip coating.

49. A hand-held working device comprising a housing (2) with a longitudinal center plane (43) and a drive motor (3) arranged in the housing (2), wherein a fastening section (14) for receiving a first battery pack (21) for supplying the drive motor (3) with electrical energy is provided at a rear end (7) of the housing (2), characterized in that the fastening section (14) is provided for receiving a second battery pack (22), and in that a protective device (80) for protecting the battery packs (21, 22) is provided on the fastening section (14), wherein the battery packs (21, 22) each extend in their longitudinal direction (85, 85') from a first end face (86, 86') to a second end face (87, 87'), wherein the first end face (86, 86') of the battery packs (21, 22) faces the fastening section (14) and the second end face (87, 87') of the battery packs (21, 22) faces away from the fastening section (14),wherein the protective device (80) comprises at least one first cover element (81), wherein the first cover element (81) extends in the longitudinal direction (85) of the first battery pack (21) at least as far as the second end face (87) of the first battery pack (21). Tool according to claim 49, characterized in that the protective device (80) comprises at least one second cover element (82), wherein the second cover element (82) extends in the longitudinal direction (85') of the second battery pack (22) at least as far as the second end face (87') of the second battery pack (22). Tool according to claim 49 or 50, characterized in that the battery packs (21, 22) are each inserted into the fastening section (14) in their longitudinal direction (85, 85'). Tool according to one of claims 49 to 51, characterized in that the battery packs (21, 22) are pushed into the fastening section (14) and that the first battery pack (21) and the second battery pack (22) each have a longitudinal axis (50, 50') running in the longitudinal direction (85, 85') of the respective battery pack (21, 22), wherein the longitudinal axes (50, 50') are aligned parallel to the longitudinal center plane (43) of the housing (2).Tool according to one of claims 49 to 52, characterized in that the battery packs (21, 22) are arranged offset from one another in their longitudinal direction (85, 85'), and in that the second end faces (87, 87') of the battery packs (21, 22) lie in different planes. Tool according to one of claims 49 to 53, characterized in that the battery packs (21, 22) are arranged one above the other in a transverse direction (91), wherein the transverse direction (91) is oriented perpendicular to the longitudinal direction (85) of the first battery pack (21) and / or to the longitudinal direction (85') of the second battery pack (22) and lies in a plane that is oriented parallel to the longitudinal center plane (43) of the housing (2). Tool according to one of claims 49 to 54, characterized in that the protective device (80) comprises at least one third cover element (83) and preferably at least one fourth cover element (84), wherein the third cover element (83) and / or in particular the fourth cover element (84) extends in the longitudinal direction (85, 85') of the battery packs (21, 22) at least as far as the second end face (87, 87') of the battery packs (21, 22).Tool according to one of claims 49 to 55, characterized in that the battery packs (21, 22) each have a substantially triangular cross-sectional contour (88, 88') with rounded corners (99, 99'), wherein the battery packs (21, 22) are preferably of identical construction, and in that the battery packs (21, 22) each have a back wall (89, 89') formed between two rounded corners (99, 99'), wherein the battery packs (21, 22) are arranged relative to one another in the fastening section (14) in such a way that the back walls (89, 89') of the battery packs (21, 22) are opposite one another, and in that the first cover element (81) is arranged on a rounded corner of the first battery pack (21) facing away from the second battery pack (22), and in particular that the second cover element (82) is arranged on a rounded corner of the second battery pack (22) facing away from the battery pack (21).Tool according to one of claims 53 to 56, characterized in that the third cover element (83) and the fourth cover element (84) are arranged in the transverse direction (91) between the battery packs (21, 22). Tool according to claim 57, characterized in that the third cover element (83) and the fourth cover element (84) are arranged with respect to a plane parallel to the longitudinal plane (31) of the. Guide rail (4) aligned plane are formed opposite one another. Tool according to one of claims 50 to 58, characterized in that the protective device (80) has recesses (90) between the cover elements (81, 82, 83, 84) for gripping the battery packs (21, 22). Tool according to one of claims 50 to 59, characterized in that movement gaps (92) are provided between the cover elements (81, 82, 83, 84) and the battery packs (21, 22), wherein the movement gaps (92) preferably taper in the direction of the first end face (86, 86') of the battery packs (21, 22). Tool according to one of claims 53 to 60, characterized in that the third cover element (83) and / or the fourth cover element (84) has an outer side (97, 97') facing away from the battery packs (21, 22), wherein the outer side (97, 97') has a concave curve (98, 98') which projects between the battery packs (21, 22).Hand-held working device with at least one tool (12), with a drive motor (10) for driving the at least one tool (12), with a housing (21), with a first operating. _, element (6) which is designed to control the drive motor (10), and with a second operating element (7) which is pivotally mounted about a pivot axis (17) between an unactuated position (18) and at least one actuated position (19) relative to the housing (21), wherein the second operating element (7) in its unactuated _, ten position (18) blocks a movement of the first operating element (6) in the direction of an actuated position (15) of the first operating element (6), wherein the second operating element (7) is held by a spring (13) in the unactuated Position (18), wherein the spring (13) has a clamping section (28) which is held fixed to the housing, and wherein the spring (13) has an actuating section (29) which cooperates with an actuating contour (30) of the second operating element (7), wherein the second operating element (7) has at least one operating section (26) which is provided for actuating the second operating element (7) by an operator, wherein the operating section (26) has a connection area (27) at which the operating section (26) projects through an opening (22) of the housing (21) onto the outside of the housing (21), wherein the connection area (27) of the operating section (26) extends from a first plane (36) running perpendicular to the pivot axis (17) to a second plane (37) running perpendicular to the pivot axis (17) and does not project beyond the planes (36, 37), wherein the planes (36, 37) enclose an operating section area (38) of the working device (1),and wherein the clamping section (28) and the actuating section (29) extend at least partially on opposite sides of the operating section area (38). Tool according to claim 62, characterized in that the clamping section (28) and the actuating, _, section (29) is arranged completely outside the operating section area (38) _, net. Working device according to claim 62 or 63, characterized in that the spring (13) is designed as a leaf spring and emerges from the clamping section (28) in the direction of a central plane (33), wherein the central plane (33) encloses an angle (α) of at least 10°, in particular at least 15°, with the pivot axis (17). Tool according to one of claims 62 to 64, characterized in that the opening (22) is at least partially covered by a cover section (32) of the second operating element (7), wherein the connection area (27) of the operating section (26) is arranged on the cover section (32). Tool according to claim 65, characterized in that the spring (13) on the actuating section (29) in the contact area with the actuating contour (30) has at least Contact section (39) which is bent away from the actuating contour (30) in the circumferential direction relative to the pivot axis (17), wherein the contact section (39) is arranged outside the cover section (32). Tool according to claim 65 or 66, characterized in that the spring (13) extends between the cover section (32) and the pivot axis (17), wherein the cover section (32) covers a central region (41) of the spring (13) towards the outside of the housing (21). Tool according to one of claims 65 to 67, characterized in that the cover section (32) extends arcuately around the pivot axis (17) over an angular range (γ) of at least 120°. Tool according to one of claims 65 to 68, characterized in that the operating section (26) forms an angle (β) of at least 30° with the cover section (32) at the connection area (27).

70. Tool according to one of claims 65 to 69, characterized in that the actuating contour (30) and the cover section (32) delimit an opening (42) through which the spring (13) projects.

71. Tool according to one of claims 62 to 70, characterized in that the actuating contour (30) has at least one convexly curved section (43).

72. Tool according to claim 71, characterized in that the actuating contour (30) has two convexly curved sections (43) and that the spring (13) rests against both convexly curved sections (43) in the unactuated position (18) of the second operating element (7).

73. Tool according to one of claims 62 to 72, characterized in that the first operating element (6) is pivotally mounted about a pivot axis (16) between an unactuated position (14) and an actuated position (15) relative to the housing (21) and in that the pivot axis (16) of the first operating element (6) and the pivot axis (17) of the second operating element (7) are inclined to one another, in particular perpendicular to one another.

74. Tool according to one of claims 62 to 73, characterized in that the second operating element (7) has a bearing axis (35) which extends from a first bearing pin (23) to a second bearing pin (24), and in that the first operating element (6) and the spring (13) are arranged on opposite sides of the bearing axis (35) of the second operating element (7) in the direction of view of a pivot axis (16) of the first operating element (6). Working device according to one of claims 62 to 74, characterized in that the second operating element (7) has at least two operating sections (26) projecting from the housing (21).

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