HAND-OPERATED, BATTERY-POWERED WORK TOOL

Description

[0001] The invention relates to a hand-held, battery-operated work device according to the preamble of claim 1. Furthermore, the invention relates to a hand-held, battery-operated work device according to the preamble of claim 11.

[0002] These types of work tools typically have a battery compartment for a battery pack. To meet drop test requirements, the battery compartment should be very robust. The corresponding housing must have strong ribbing and requires a considerable amount of installation space.

[0003] Such a work device is known from document DE 10 2009 012 178 A1.

[0004] Documents CN 102 416 504 A and SE 1 951 341 A1 show work equipment in which the battery can be inserted into the battery compartment in a storage position of the work equipment on a horizontal plane parallel to the horizontal plane.

[0005] The invention is based on the objective of further developing a generic work device in such a way that a compact and at the same time robust design of the work device against an impact is possible.

[0006] This problem is solved by a hand-held, battery-powered work device with the features of claim 1.

[0007] This problem is solved by a hand-held, battery-powered work device with the features of claim 11.

[0008] According to claim 1, the invention provides that an imaginary tangential plane of the housing is tangent to the handle tube and to the housing in the operating area. In particular, the imaginary tangential plane is tangent to the operating area of ​​the housing in a side view perpendicular to the longitudinal plane at a point of contact. The tangential plane merely touches the housing; it does not intersect the housing. The operating area extends, particularly in the viewing direction perpendicular to the longitudinal plane, in the direction of the longitudinal axis of the housing. The tool is arranged at the front end of the housing with respect to the longitudinal axis. The operating area is located at the rear end of the housing with respect to the longitudinal axis. The control element for operating the electric motor is arranged in the operating area. The handle opening is also located in the operating area. The operating area extends in the direction of the longitudinal axis of the housing from the rear end of the housing to the point of separation.The distance point is the point or location of the handle opening that has the greatest distance, measured along the longitudinal axis, to the rear end of the housing. In particular, the housing has a front area that extends along the longitudinal axis from the distance point to the front end of the housing. Specifically, the housing is divided along the longitudinal axis into only two main areas: the operating area and the front area. The handle opening penetrates the housing completely in a direction transverse to the longitudinal plane, and in particular, in a direction perpendicular to the longitudinal plane. The longitudinal plane contains the longitudinal axis. In the resting position of the tool, the longitudinal plane is perpendicular to the horizontal plane. The tool is designed so that it can be rested on the horizontal plane in the designated resting position. Specifically, the tool has a resting surface.The horizontal plane runs parallel to the horizontal. The handle tube at least partially surrounds the housing. In particular, the handle tube overlaps the housing. The imaginary tangent plane does not intersect the handle tube. Specifically, the imaginary tangent plane is tangent to the housing in the parked position on the side of the tool facing away from the horizontal plane.

[0009] Because the imaginary tangential plane rests against the handle tube of the tool and is tangent to the housing in the operating area, the portion of the housing located along the longitudinal axis between the point of separation and the front end of the housing is protected in the event of an impact. No parts of the housing protrude beyond the imaginary tangential plane in this intermediate area. This protection is particularly pronounced when the chainsaw impacts the horizontal plane with the imaginary tangential plane. In such an impact, the normal to the tangential plane is perpendicular to the horizontal plane. Consequently, the tool falls onto the horizontal plane in such a way that the imaginary tangential plane makes full contact with the horizontal plane upon initial impact.

[0010] The imaginary tangent plane touches the operating area at a point of contact. In particular, the point of contact is the point of the operating area with the greatest distance to the horizontal plane.

[0011] The tangential plane has a first side and a second side. In the resting position of the work tool, the first side faces the horizontal plane. Preferably, the front area of ​​the housing is located exclusively on the first side of the imaginary tangential plane. This protects the front area, and in particular the battery compartment located there, in the event of an impact.

[0012] In particular, the front area has a front area distance relative to the imaginary tangential plane. Advantageously, this front area distance is chosen to be so small, and the working device is designed in such a way, that the front area of ​​the housing can contact the horizontal plane when the working device impacts the imaginary tangential plane. This allows the front area, especially the battery compartment located in the front area, to act as a support point upon impact, absorbing energy into the housing. This distributes the energy that must be absorbed into the housing upon impact across multiple points.

[0013] The imaginary tangent plane touches the operating area of ​​the housing in its stand position, perpendicular to the longitudinal plane at the point of contact in a side view. Advantageously, the distance to the front area is less than 10% of the distance of the point of contact to the horizontal plane. In particular, the distance to the front area is less than 5%, preferably less than 3%, of the distance of the point of contact to the horizontal plane. In particular, the imaginary tangent plane touches the front area. In this case, the distance to the front area is 0% of the distance of the point of contact to the horizontal plane. Because the distance to the front area is chosen to be small, the front area can serve as a support element for the housing in the event of an impact, especially an impact of the tangent plane on the horizontal plane.

[0014] In particular, the battery compartment is positioned in the front of the housing in such a way that the housing can enclose the battery. Specifically, the battery compartment does not protrude beyond the imaginary tangential plane. The tool and the battery compartment are advantageously designed so that a battery pack located in the battery compartment is positioned exclusively on the first side of the imaginary tangential plane. This also protects the battery pack in the event of an impact.

[0015] In an advantageous embodiment of the invention, the front region of the housing has an impact projection. The impact projection is, in particular, part of the housing. The impact projection extends towards the tangential plane. Preferably, the front region has the smallest distance to the tangential plane in the area of ​​the impact projection. In particular, the impact projection is part of the battery compartment.

[0016] Preferably, the impact protrusion forms an outer wall of the battery compartment. In particular, in the event of an impact of the working tool with the imaginary tangential plane on the horizontal plane, the impact protrusion, in addition to the point of contact of the tangential plane in the operating area of ​​the housing and the handle tube, serves as an energy input point for energy into the housing of the working tool.

[0017] Advantageously, the working device includes an actuating element for ejecting a battery from the battery compartment. Preferably, the working device is designed such that the actuating element is protected by the impact projection in the event of an impact. In particular, the actuating element can be located at a greater distance from the imaginary tangential plane than the impact projection. This ensures that the functionality of the actuating element is maintained even after an impact of the working device.

[0018] In an advantageous embodiment of the invention, the operating area features a hand stop for resting the hand when the operating element is actuated. Advantageously, the imaginary tangent plane touches the operating area at the hand stop. This allows the hand stop to simultaneously serve as an energy input point upon impact of the work tool.

[0019] Preferably, the hand stop is designed as a projection of the operating area. In particular, the hand stop is essentially hump-shaped. This allows the tool to roll over the projection of the operating area upon impact and subsequently absorb energy via the handle tube.

[0020] The battery can be inserted into the battery compartment in the insertion direction. Preferably, the insertion direction runs parallel to the longitudinal plane. Advantageously, the insertion direction is inclined at an angle of 80° to 90° to the horizontal plane in the storage position. It can also be provided that the insertion direction is perpendicular to the horizontal plane. In particular, the battery compartment has an insertion opening.

[0021] Preferably, the insertion opening is located on the side of the tool facing away from the horizontal plane when in the stand position. Specifically, the insertion opening opens the battery compartment away from the horizontal plane when in the stand position. This arrangement of the battery pack allows for an ergonomic and balanced design of the tool. The battery pack can, for example, be positioned at the center of gravity of the tool. Inserting and removing the battery pack from the battery compartment is conveniently possible from above when in the stand position. In particular, the battery compartment is designed so that the housing encloses the battery inside the compartment.

[0022] In an advantageous embodiment of the invention, the working device has a further operating element in the operating area. This further operating element preferably serves to unlock the operating element or to hold a locking element in an unlocked position. In particular, the further operating element is a locking element for locking the operating element or a holding element. The locking element is preferably designed such that the operating element can only be actuated if the locking element is also actuated simultaneously. When actuated, the holding element preferably holds the locking element in an unlocked position in which actuation of the operating element is possible. In particular, the further operating element is arranged on the operating area of ​​the housing. Advantageously, the point of contact of the imaginary tangential plane on the operating area of ​​the housing is located, in the side view, perpendicular to the longitudinal plane with respect to the direction of the longitudinal axis between the further operating element and the front area.This allows the energy input points formed by the handle tube and at the point of contact to be located close together with respect to the longitudinal axis. This results in a robust tool that can effectively absorb the energy required in the event of an impact.

[0023] In an alternative solution according to the invention to the problem according to a working device with the features of claim 11, the hand stop projects beyond the imaginary contact plane. The imaginary contact plane is perpendicular to the longitudinal plane. The imaginary contact plane is tangent to the battery compartment. The imaginary contact plane passes through the lowest point. A further operating element is provided in the operating area of ​​the housing. The further operating element can, in particular, be a locking element for locking the operating element or a retaining element. The locking element is, in particular, designed such that the operating element can only be actuated if the locking element is also actuated simultaneously. When actuated, the retaining element preferably holds the locking element in an unlocked position in which actuation of the operating element is possible. The further operating element projects from an operating element opening in the operating area.The additional control element projects out of the control element opening in a direction away from the horizontal plane. In the standby position of the work tool, the control element opening has its lowest point in a side view perpendicular to the longitudinal plane. The lowest point corresponds to the point of the control element opening that, in the standby position, has the smallest distance to the horizontal plane. The lowest point may be a recess. In the work tool according to claim 11, a hand stop for resting the hand when operating the control element is also formed in the housing in the operating area. The housing has a battery compartment. In contrast to the tangential plane of the housing, the contact plane intersects the housing.

[0024] Because the hand stop protrudes beyond the imaginary contact plane, the battery compartment is protected in the event of an impact by the tool, where the tool moves towards the horizontal plane in such a way that the normal of the contact plane is parallel to the normal of the horizontal plane. This allows for a space-saving design of the battery compartment.

[0025] In particular, the control element opening is located on the side of the handle housing facing away from the horizontal plane when the handle is in the parked position.

[0026] Advantageously, the battery compartment has an outer wall that is tangent to the imaginary touch plane. In an advantageous embodiment of the invention according to claim 11, the hand stop is designed as a projection of the operating area of ​​the housing. In particular, the hand stop is essentially bump-shaped.

[0027] The contact plane intersects the hand stop. The inventive device according to claim 11 can also be further developed such that a battery can be inserted into the battery compartment in an insertion direction, and that the insertion direction runs parallel to the longitudinal plane. In particular, it can be provided that the battery compartment has an insertion opening, and that the insertion opening is arranged on the side of the working device facing away from the horizontal plane in the storage position.

[0028] Exemplary embodiments of the invention are explained below with reference to the drawing. The drawing shows: Fig. 1 a schematic side view of a work tool designed as a motor chainsaw, Fig. 2 a schematic top view of the work tool from above Fig. 1 , Fig. 3 a view of the rear end of the housing of the working device from the Figuren 1 und 2 , Fig. 4 a schematic sectional view of a section along the in Fig. 2 section surface IV-IV shown, Fig. 4a an enlarged detail from Fig. 4 , Fig. 5 a schematic side view of a tool designed as a hedge cutter, and Fig. 6 a schematic side view of a tool designed as an angle grinder.

[0029] The Fig. 1 bis 6 Show hand-held work tools 1. The hand-held work tools 1 are battery-operated. In the embodiments according to the Fig. 1 bis 4a The hand-held tool 1 is a chainsaw. In the exemplary embodiment according to Fig. 5 The hand-held tool 1 is a hedge trimmer. In the exemplary embodiment according to Fig. 6 The hand-held tool 1 is an angle grinder. The following description applies to all embodiments. If a statement refers only to one of the three embodiments, this is explicitly stated.

[0030] The tool 1 is hand-operated during its intended use. The tool 1 is a portable tool. In this context, "portable" means that the tool can be carried during its intended use. During operation, it is not necessary for the tool 1 to be supported by a device or a workpiece. The tool 1 can be carried by the operator alone during its intended use.

[0031] The working device 1 comprises a housing 40. The working device 1 comprises a tool 39. The tool 39 is arranged on the housing 40. In the exemplary embodiment, the tool 39 is attached to the housing 40. In the exemplary embodiment according to the Fig. 1 bis 4a The tool is formed by a guide rail 5 and a saw chain 6. In the exemplary embodiment according to Fig. 5 The tool 39 is formed by a cutter bar. In the exemplary embodiment according to Fig. 6 The tool 39 is formed by a saw blade.

[0032] The working device 1 comprises an electric motor 4. The electric motor 4 serves to drive the tool 39. In the exemplary embodiment according to the Fig. 1 bis 4a The electric motor 4 drives the saw chain 6 around the guide bar 5. The electric motor 4 is located in the housing 40.

[0033] The working device 1 includes a handle tube 8. The handle tube 8 partially surrounds the housing 40. It can also be provided that the handle tube completely surrounds the housing. The handle tube 8 extends beyond the housing 40. In normal operation of the working device 1, the operator can grasp the handle tube 8 from above. The handle tube 8 is a loop handle.

[0034] The housing 40 has a rear end 31. During operation of the tool 1, the rear end 31 faces the user. The housing 40 also has a front end 32. During normal operation of the tool 1, the front end 32 of the housing 40 faces away from the operator. The tool 39 is located at the front end 32. In the exemplary embodiments, the housing 40 encloses a continuous interior space. The housing 40 is formed from two half-shells. The half-shells abut each other in a parting plane. However, it is also possible for the housing to enclose two separate interior spaces. In particular, the housing can comprise a motor housing and a handle housing, which are separate from each other. The electric motor and the battery compartment are then arranged in the motor housing.The motor housing and the handle housing can be connected to each other via a vibration gap and anti-vibration elements bridging this gap. In this case, the housing comprises four half-shells.

[0035] The housing 40 in any case includes an operating area 2. The operating area 2 is located at the rear end 31 of the housing 40. An operating element 15 is arranged in the operating area 2. The operating element 15 is used to operate the electric motor 4 of the working device 1.

[0036] As especially in the Fig. 1 und 2 As shown, the housing 40 extends along a longitudinal axis 49. The longitudinal axis 49 extends from the rear end 31 of the housing 40 to the front end 32 of the housing 40. In all embodiments, the longitudinal axis 49 runs parallel to a tool plane. In the embodiments according to the Fig. 1 bis 4a The longitudinal axis 49 runs parallel to the plane of the guide rail 5. In the exemplary embodiment according to Fig. 5 The longitudinal axis 49 runs parallel to the plane in which the cutter bars move back and forth. In the exemplary embodiment according to Fig. 6 The longitudinal axis 49 runs parallel to the plane of the saw blade. The longitudinal axis 49 can also be referred to as the longitudinal center axis of the housing 40.

[0037] The work tool 1 is designed to be placed in a designated parking position on a horizontal plane E. The work tool 1 may have a parking surface for this purpose. In the exemplary embodiments, the work tool 1 has parking protrusions on which it can be placed on the horizontal plane E. In the parking position, the work tool 1 is positioned on the horizontal plane E such that the operator can grasp the handle 8 from above. This allows the work tool 1 to be lifted and picked up quickly and easily. The horizontal plane E is horizontal. In the parking position, the longitudinal axis 49 runs parallel to the horizontal plane E.

[0038] The working device 1 has a longitudinal plane F. In the parked position, the longitudinal plane F runs perpendicular to the horizontal plane E. The longitudinal plane F contains the longitudinal axis 49. The longitudinal plane F is also referred to as the longitudinal center plane. It may be provided that the housing 40 is composed of two housing halves along the longitudinal plane F. In this case, the longitudinal plane F is referred to as the dividing plane of the housing 40 or as the partition plane of the housing 40. In the embodiments according to the Fig. 1 bis 4a The longitudinal plane F runs parallel to the plane of the guide rail 5. In the exemplary embodiment according to Fig. 5 The longitudinal plane F runs perpendicular to the plane in which the knife bars move relative to each other. In the exemplary embodiment according to Fig. 6 The longitudinal plane F runs parallel to the plane of the saw blade.

[0039] The housing 40 has a handle opening 33. The handle opening 33 is located in the operating area 2 of the housing 40. The handle opening 33 completely penetrates the housing 40. The handle opening 33 penetrates the housing 40 in a direction transverse to the longitudinal plane F. In the exemplary embodiment, the handle opening 33 penetrates the housing 40 in a direction perpendicular to the longitudinal plane F. The handle opening 33 has a [missing information - likely a specific feature or feature] in the Fig. 1 and 4 The distance point P shown is located at the edge of the handle opening 33. Distance point P has the greatest distance, measured along the longitudinal axis 49, to the rear end 31 of the housing 40. Distance point P is the point on the handle opening 33 that has the greatest distance d3, measured along the longitudinal axis 49, to the rear end 31 of the housing 40.

[0040] The operating area 2 of the housing 40 extends in the direction of the longitudinal axis 49 from the rear end 31 of the housing 40 to the distance point P. A handle 22 is formed on the housing 40 within operating area 2. The user can grip the handle 22 within operating area 2 by inserting their hand through the handle opening 33.

[0041] The housing 40 has a front section 3. The front section 3 is arranged in the direction of the longitudinal axis 49 between the distance point P and the front end 32 of the housing 40. In the exemplary embodiments, the front section 3 of the housing 40 extends in the direction of the longitudinal axis 49 from the distance point P of the handle opening 33 to the front end 32 of the housing 40. In the exemplary embodiments, the housing 2 is divided exclusively into the operating area 2 and the front section 3.

[0042] The working device 1 includes a battery compartment 7. The battery compartment 7 is formed by the housing 40. The battery compartment 7 is located in the front region 3 of the housing 40. The battery compartment 7 is bounded by an outer surface of the housing 40. The working device 1 is preferably designed such that the battery compartment 7 encloses a battery pack (not shown) inserted into the battery compartment 7 in a circumferential direction around the insertion direction 50, so that only one end face of the battery pack is visible from outside the battery compartment 7.

[0043] The case 40 has, for example, a Fig. 4 The imaginary tangent plane T is shown. The imaginary tangent plane T merely touches the housing 40. The imaginary tangent plane T merely abuts the housing 40. The imaginary tangent plane T does not intersect the housing 40. The imaginary tangent plane T runs perpendicular to the longitudinal plane F. The imaginary tangent plane T is tangent to the handle tube 8. The handle tube 8 is not part of the housing 40. In all embodiments, the imaginary tangent plane T of the housing 40 is tangent to the housing 40 in the operating area 2 of the housing 40. The imaginary tangent plane T does not intersect the handle tube 8. The imaginary tangent plane T abuts the handle tube 8.

[0044] The handle tube 8 overlaps the housing 40 in such a way that the handle tube 8 intersects the longitudinal plane F, as shown in Fig. 3 The handle tube 8 is also referred to as a bow handle. The handle tube 8 is arranged in the front region 3 of the housing 40. The handle tube 8 is attached to the housing 40 in the exemplary embodiments. The handle tube 8 is connected to the housing 40 at both of its longitudinal ends, in the exemplary embodiment to the front region 3 of the housing 40. With respect to the direction of the longitudinal axis 49, the battery compartment 7 is arranged between the handle tube 8 and the operating area 2 of the housing 40.

[0045] As in Fig. 4 As shown, the tangent plane T has a first side 11 and a second side 12. The first side 11 of the imaginary tangent plane T faces the horizontal plane E in the resting position of the working tool 1. The front section 3 of the housing 40 is located exclusively on the first side 11 of the imaginary tangent plane T. The imaginary tangent plane T does not intersect the front section 3. The front section 3 does not penetrate the imaginary tangent plane T. The battery compartment 7 is located exclusively on the first side 11 of the imaginary tangent plane T. The imaginary tangent plane T does not intersect the battery compartment 7. The battery compartment 7 does not penetrate the tangent plane T.

[0046] The front region 3 has a front region distance m to the imaginary tangent plane T, as shown in Fig. 4 and in Fig. 4a The battery compartment 7 is shown as an example for all embodiments. The front area distance m is shown relative to the imaginary tangent plane T, as shown in Fig. 4 and Fig. 4a The front area distance m is shown as an example for all embodiments. The front area distance m is measured perpendicular to the imaginary tangent plane T. The front area distance m corresponds to the distance of the front area 3 of the housing 40 from the imaginary tangent plane T. The front area distance m is selected and the working device 1 is designed such that, in the event of an impact of the working device 1 with the imaginary tangent plane T on the horizontal plane E, the front area 3 of the housing 40 can contact the horizontal plane E. In the embodiment, the front area distance m is selected and the working device 1 is designed such that, in the event of an impact of the working device 1 with the imaginary tangent plane T on the horizontal plane E, the battery compartment 7 can contact the horizontal plane E.Upon such an impact of the working device 1 with the imaginary tangent plane T on the horizontal plane E, the working device 1 can deform elastically in such a way that it can absorb the impact energy at three points. These three points include the handle tube 8, the front area 3, and the operating area 2 of the housing 40. The point in the front area 3 of the housing 40 is, in particular, the battery compartment 7.

[0047] In a hypothetical impact of the working device 1 with the tangent plane T on the horizontal plane E, it is assumed that the normals of the tangent plane T and the horizontal plane E point in the same direction. In such a hypothetical impact of the working device 1 on the horizontal plane E, the working device 1 first contacts the horizontal plane E with the operating area 2 of the housing 40 and the handle tube 8. Due to elastic deformation of the working device 1, contact then also occurs between the front area 3, in the exemplary embodiments between the battery compartment 7 and the horizontal plane E. The working device 1 then braces itself against the horizontal plane E at three points. The energy of the impact can be absorbed by the working device 1 at these three points.The working device 1 is designed such that its potential energy at a height of 1 m above the horizontal plane E is sufficient for the described elastic deformation of the working device 1. To enable the described elastic deformation during an impact of the working device 1, the materials of the working device 1, in particular the materials of the handle tube 8 and the housing 40, are selected accordingly, and the shape of the working device 1 is designed accordingly. In the exemplary embodiments, the housing 40, in particular the operating area 2 of the housing 40, is made of plastic. The housing 40 is assembled from injection-molded parts, in the exemplary embodiments from two half-shells. The handle tube 8 is made of plastic. It can also be provided that the handle tube has a tubular core made of metal, in particular aluminum. In this case, the handle tube can be encased in plastic.

[0048] In a more realistic impact scenario, the tool 1 first makes contact with the horizontal plane E either with the control area 2 of the housing 40 or with the handle tube 8. Subsequently, the tool 1 rotates around an axis of rotation parallel to the horizontal plane E, so that the tool 1 then contacts the horizontal plane E with either the handle tube 8 or the control area 2 of the housing 40, depending on which of the two areas did not make contact with the horizontal plane E first. It is also possible that, after rotation, the tool 1, upon the first contact of the area that did not make contact with the horizontal plane E, simultaneously makes contact with the horizontal plane E with the control area 2 of the housing 40 and the handle tube 8. As a result, the tool 1 is elastically deformed to such an extent that it also comes into contact with the horizontal plane E with the battery compartment 7.In this impact scenario as well, the energy is introduced into the working device 1 at three points.

[0049] The working device 1 exhibits the following characteristics when executed according to the Figuren 1 bis 4 a hand guard 25. The hand guard 25 is not part of the housing 40. The hand guard 25 is pivotally mounted on the housing 40. The hand guard 40 can project beyond the imaginary tangential plane T. If the working tool 1 impacts the horizontal plane with its imaginary tangential plane T, the hand guard 25 can pivot. This evasive movement of the hand guard 25 upon such an impact protects it from damage. In the exemplary embodiment, the hand guard 25 is positioned according to the Fig. 1 bis 4a advantageously in operative connection with a brake (not shown) of the electric motor 4 of the working device 1.

[0050] In the exemplary embodiment according to Fig. 6 The working device 1 has a protective hood 34. The protective hood 34 at least partially surrounds the tool 39. This protects the operator from the tool 39 and from cut material. The protective hood 34 is not part of the housing 40. In the schematic representation according to Fig. 6 The protective cover 34 protrudes beyond the tangent plane T. In fact, however, the protective cover is only located on the first side 11 of the imaginary tangent plane.

[0051] As especially in Fig. 4 and Fig. 4a As shown, the first tangent plane T touches the operating area 2 of the housing 40 in the parking position in a side view perpendicular to the longitudinal plane F in all embodiments at a point of contact 10. The point of contact 10 is at a distance d1 from the horizontal plane E. This is particularly evident in Fig. 4a The depicted front area distance m is less than 10% of, for example, in Fig. 4 The distance d1 of the contact point 10 to the horizontal plane E is shown. In particular, the front area distance m is less than 3% of the distance d1 of the contact point 10 to the horizontal plane E. In the exemplary embodiments, the front area distance m is less than 3% of the distance d1 of the contact point 10 to the horizontal plane E. It can also be provided that the front area distance m is 0% of the distance d1 of the contact point 10 to the horizontal plane E. In this case, the imaginary tangent plane T is tangent to the operating area 3. In the exemplary embodiments, the imaginary tangent plane T is tangent to the battery compartment 7.

[0052] The housing 40 has an impact projection 9. The impact projection 9 of the housing 40 is located in the front region 3 of the housing 40. The impact projection 9 is formed by the front region 3 of the housing 40. The impact projection 9 projects in the direction of the imaginary tangential plane T. The impact projection 9 is a projection of the front region 3 of the housing 40. The impact projection 9 is bounded on both sides with respect to the direction of the longitudinal axis 49 by regions of the housing 40 that have a greater distance to the tangential plane T than the impact projection 9. The front region 3 has the smallest distance to the imaginary tangential plane T in the region of the impact projection 9. The front region 3 has a front region distance m to the tangential plane T in the region of the impact projection 9. The impact projection 9 has a front region distance m to the imaginary tangential plane T.The impact projection 9 is located exclusively on the first side 11 of the imaginary tangential plane T. The impact projection 9 has an impact surface 24. In the exemplary embodiments, the impact surface 24 runs parallel to the imaginary tangential plane T. When the working tool 1 impacts the horizontal plane E with the tangential plane T, the impact projection 9 with the impact surface 24 can, at least briefly, bear against the horizontal plane E and thus be supported. In this way, energy can be transferred into the housing 40.

[0053] The impact projection 9 is arranged between the handle tube 8 and the operating area 2 of the housing 40 with respect to the direction of the longitudinal axis 49. The impact projection 9 is located closer to the operating area 2 of the housing 2 than to the handle tube 8 with respect to the direction of the longitudinal axis 49. The imaginary tangent plane T abuts the handle tube 8 at a contact point 30. The imaginary tangent plane T is tangent to the handle tube 8 at the contact point 30. With respect to the direction of the longitudinal axis 49, the impact projection 9 is located closer to the operating area 2 of the housing 40 than to the contact point 30 of the handle tube 8. A distance measured in the direction of the longitudinal axis 49 between the impact projection 9 and the contact point 30 of the tangential plane T on the handle tube 8 is at least twice as large as the distance measured in the direction of the longitudinal axis 49 between the impact projection 9 and the distance point P of the handle opening 33.

[0054] The front area 3 can be divided into a battery area 36 and a bracket area 37 with respect to the direction of the longitudinal axis 49, as exemplified for all embodiments in Fig. 2 The bracket area 37 is associated with the front end 32 of the housing 40. The battery area 36 is arranged between the bracket area 37 and the control area 2 with respect to the direction of the longitudinal axis 49. The battery area 36 borders the control area 2. The battery area 36 borders the bracket area 37. In the exemplary embodiments, the handle tube 8 is arranged entirely within the bracket area 37. Within the bracket area 37, the handle tube 8 is connected to the housing 40. In the exemplary embodiments, the battery compartment 7 is arranged entirely within the battery area 36.

[0055] The operating area 2 extends from 35% to 45% of the total length of the housing 40 measured in the direction of the longitudinal axis 49. The front area 3 extends from 55% to 65% of the total length of the housing 40 measured in the direction of the longitudinal axis 49. The battery area 36 extends from 20% to 30% of the total length of the housing 40 measured in the direction of the longitudinal axis 49. The bracket area 37 extends from 30% to 40% of the total length of the housing 40 measured in the direction of the longitudinal axis 49.

[0056] The contact point 30 of the handle tube 30 on the tangential plane T is located in the bracket area 37. The contact point 10 is located in the operating area 2. The in Fig. 4a The depicted impact area 24 is located in the battery area 36.

[0057] In the described impact, the working device 1 initially lies in the bracket area 37 with the contact point 30 (which can also be a point extended along an axis) of the handle tube 8 and in the operating area 2 with the contact point 10 (which can also be a point extended along an axis) on the horizontal plane E ( Fig. 4 After the elastic deformation of the working device 1, the working device 1 is additionally located in the battery area 36 with the in Fig. 4a The depicted impact surface 24 is located on the horizontal plane E. In this impact, the contact point 10, the impact surface 24 and the contact point 30 form support points for the introduction of energy into the working device 1.

[0058] The impact projection 9 is part of the battery compartment 7. The battery compartment 7 is designed to enclose the battery that can be inserted into it. The impact projection 9 delimits the battery compartment 7. The impact projection 9 is formed by an edge of the battery compartment 7. The impact projection 9 is part of an edge of the battery compartment 7 that runs completely around the insertion direction 50 of the battery compartment 7. The impact projection 9 forms an outer wall 13 of the battery compartment 7. The impact projection 9 is arranged between an inner wall 23 and an outer wall 13 of the battery compartment 7. The inner wall 23 of the battery compartment is designed to abut a battery that can be inserted into the battery compartment 7. The impact surface 24 extends between the inner wall 23 and the outer wall 13. The impact projection 9 is located at a greater distance to the horizontal plane E than the point of contact 10 between the tangential plane T and the operating area 2 of the housing 40.The impact projection 9 is located at a smaller distance to the horizontal plane E than the contact point 30 of the tangential plane T on the handle tube 8. The imaginary tangential plane T is inclined towards the horizontal plane E in the parking position of the working device 1 in the direction from the front end 32 of the housing 40 to the rear end 31.

[0059] In the exemplary embodiment according to the Fig. 1 bis 4a The front area 3 of the housing 40 includes a cover 36. The cover 36 forms at least part of the battery compartment 7. The impact projection 9 is formed by the cover 36. The cover 36 comprises two half-shells. The two half-shells are joined along a parting line.

[0060] The working device 1 includes an actuating element 14. The actuating element 14 serves to eject a battery from the battery compartment 7. The working device 1 is designed such that the actuating element 14 is protected by the impact projection 9 in the event of an impact of the working device 1. This is particularly important in the Fig. 3 und 4 evident. As in Fig. 3 As can be seen, the point of contact 10 in the exemplary embodiments is a contact point that extends along a straight line. This contact point is only a contact point in a side view perpendicular to the longitudinal plane F. Similarly, the impact projection 9 extends along a straight line. In the exemplary embodiment according to Fig. 3 The actuating element 14 for ejecting the battery from the battery compartment 7 is arranged between two projections that form the impact projection 9. This protects the actuating element 14. Additionally, the distance of the actuating element 14 to the imaginary tangent plane T is greater than the distance of the impact projection 9 to the imaginary tangent plane T. This is shown in Fig. 4 depicted.

[0061] The working device 1 includes a hand stop 16. The hand stop 16 is formed by the operating area 2 of the housing 40. The hand stop 16 serves as a resting point for the user's hand when the operating element 15 is actuated. The hand stop 16 prevents the user's hand from moving from the rear end 31 to the front end 32 of the housing 40 relative to the housing 40 when the operating element 15 is actuated. The imaginary tangent plane T is tangent to the operating area 2 at the hand stop 16.

[0062] In the exemplary embodiment, the hand stop 16 is designed as a projection 17 of the operating area 2 of the housing 40. The projection 17 of the operating area 2 projects towards the tangential plane T. With respect to the direction of the longitudinal axis 49, the projection 17 is bounded on both sides by areas of the housing 40 that are at a greater distance from the tangential plane T than the projection 17. The projection 17 is hump-shaped. With respect to the direction of the longitudinal axis 49, between the projection 17 of the operating area 2 and the impact projection 9 of the front area 3, a recess of the working tool 1 is formed in the exemplary embodiments of the housing 40 with respect to the imaginary tangential plane T.

[0063] A battery can be inserted into the battery compartment 7 in an insertion direction 50. The battery is also referred to as a battery pack. In the storage position, the insertion direction 50 runs perpendicular to the horizontal plane E. The insertion direction 50 runs parallel to the longitudinal plane F. Alternatively, it can also be provided that the insertion direction runs perpendicular, in particular perpendicular, to the longitudinal plane F.

[0064] The battery compartment 7 has an insertion opening 18. The battery can be inserted into the battery compartment 7 through the insertion opening 18. In the storage position, the insertion opening 18 is located on the side of the working device 1 facing away from the horizontal plane E. The insertion opening 18 opens the battery compartment 7 in the direction away from the horizontal plane E. The insertion opening 18 has a closed rim surrounding the insertion direction 50. To insert the battery into the battery compartment 7, the battery must be guided through the insertion opening 18, specifically through the closed rim. This ensures that the battery is stored securely and protected.

[0065] Advantageously, the insertion direction 50 is inclined at an angle α of 80° to 90° to the horizontal plane E in the parking position, as shown in Fig. 1 The insertion direction 50 is shown. It can also be provided that the insertion direction 50 is perpendicular to the horizontal plane E. In the exemplary embodiment, the insertion direction 50 extends towards the horizontal plane E in the parking position. In the exemplary embodiment, the insertion direction 50 is inclined towards the rear end 32 in the direction towards the horizontal plane E. However, it can also be provided that the insertion direction is inclined away from the rear end 33 in the direction towards the horizontal plane E.

[0066] As in the Fig. 1 , 4 , 5 und 6 As shown, the working device 1 has a further operating element 19. The working device 1 has an exemplary embodiment for all embodiments in Fig. 1 The depicted locking element 35 serves to lock the control element 15 for operating the electric motor 4. The working device 1 is advantageously designed such that the control element 15 can only be actuated when the locking element 35 is in an unlocked position. The operator can push the locking element 35 into the unlocked position. This requires overcoming a spring force. To prevent the operator from having to hold the locking element 35 permanently in the unlocked position, the additional control element 19 is provided. In the exemplary embodiments, the additional control element 19 is a holding element. The holding element allows the locking element 35 to be conveniently held in the unlocked position. With the holding element actuated, pushing the locking element 35 into the unlocked position is no longer required continuously, but only initially.After initially pressing the locking element 35 into the unlocking position, the locking element 35 can be held in the unlocking position, preferably mechanically, by (permanent) actuation of the holding element.

[0067] The additional control element 19 can also be a locking element. Preferably, in the parked position, the additional control element 19 projects out of the operating area 2 of the housing 40 in the direction away from the horizontal plane E. The additional control element is not part of the housing 40.

[0068] The additional control element 19 is arranged in the operating area 2 of the housing 40. The working device 1 includes a control element opening 21. The control element opening 21 is arranged in the housing 40. The control element opening 21 completely penetrates an outer wall of the housing 40. The control element opening 21 is located in the operating area 2 of the housing 40. In the parked position, the control element opening 21 is located on the side of the working device 1 facing away from the horizontal plane E. The additional control element 19 protrudes from the control element opening 21.

[0069] The point of contact 10 of the operating area 2 with the imaginary tangent plane T lies, with respect to the direction of the longitudinal axis 49, between the further operating element 19 and the front area 3.

[0070] The point of contact 10 of the operating area 2 with the imaginary tangent plane T lies between the operating element opening 21 and the front area 3 with respect to the direction of the longitudinal axis 49.

[0071] The control element opening 21 has a low point 20 perpendicular to the longitudinal plane F in a side view, as for example in Fig. 4 The lowest point 20, perpendicular to the longitudinal plane F in the side view, is the point of the control element opening 21 with the smallest distance d2 to the horizontal plane E. As shown Fig. 3 As can be seen, the minimum point 20 only appears as a point in the side view perpendicular to the longitudinal plane F. In fact, the minimum point 20 is a low point that extends along a straight line. As in Fig. 4 As shown, an imaginary contact plane B runs perpendicular to the longitudinal plane F. The imaginary contact plane B passes through the minimum point 20. The imaginary contact plane B is tangent to the battery compartment 7. In contrast to the imaginary tangent plane T, the imaginary contact plane B intersects the housing 40. The hand stop 16 protrudes beyond the imaginary contact plane B.

[0072] The imaginary contact plane B intersects the hand stop 16.

[0073] The control element opening 21 is located on the side of the handle housing 2 facing away from the horizontal plane E in the parked position. In the exemplary embodiment, the additional control element 19 is designed as a lever. In the exemplary embodiment, the additional control element 19 is spring-loaded. The spring tension of the additional control element 19 acts away from the horizontal plane E in the parked position of the tool 1.

[0074] The imaginary contact plane B touches the outer wall 13 of the battery compartment 7. The contact plane B touches the impact projection 9.

[0075] The contact plane B intersects the projection 17. The hand stop 16 is formed on the projection 17. The hand stop 16 is arranged between the low point 20 and the battery compartment 7 with respect to the direction of the longitudinal axis 49. The hand stop 16 is arranged between the outer wall 13 of the battery compartment 7 and the low point 20 with respect to the direction of the longitudinal axis 49. The hand stop 16 is arranged between the impact projection 9 and the low point 20 with respect to the direction of the longitudinal axis 49.

[0076] In the views according to the Fig. 5 und 6 No actuating element 14 is discernible. Analogous to the embodiment according to the Fig. 1 bis 4 However, an actuating element 14 is present.

[0077] In the exemplary embodiment according to Fig. 6 No hand stop is shown. Analogous to the embodiments according to the Fig. 1 bis 5 But it can also be used with the angle grinder. Fig. 6 A hand stop should be provided. Fig. 6However, a projection 17 is shown, against which the tangent plane T lies. The tangent plane B intersects the projection 17.

Claims

1. Hand-held, battery-powered working device, wherein the working device (1) is in particular a motor chain saw, a hedge trimmer or a cut-off grinder, wherein the working device (1) comprises a housing (40) and a tool (39) arranged thereon, wherein the working device (1) comprises a battery receptacle (7), wherein a battery can be inserted into the battery receptacle (7) in an insertion direction (50), wherein the working device (1) comprises a handle tube (8) which at least partially surrounds, in particular overlaps, the housing (40), wherein the housing (40) has a rear end (31) to which an operating region (2) of the housing (40) is assigned, wherein the housing (40) has a front end (32) at which the tool (39) is arranged, wherein the housing (40) extends along a longitudinal axis (49) from the rear end (31) to the front end (32), wherein in the operating region (2) an operating element (15) for operating an electric motor (4) of the working device (1) is arranged, wherein the working device (1) is designed such that it can be set down on a horizontal plane (E) in a provided setting-down position, wherein the insertion direction (50) extends transversely to the horizontal plane (E) in the setting-down position, wherein the working device (1) has a longitudinal plane (F) which extends perpendicular to the horizontal plane (E) in the setting-down position and contains the longitudinal axis (49), wherein the operating region (2) has a grip opening (33) completely penetrating the housing (40) in a direction transverse to the longitudinal plane (F), wherein the grip opening (33) has, in the direction of the longitudinal axis (49), a distance point (P) having the greatest distance measured in the direction of the longitudinal axis (49) from the rear end (31) of the housing (40), wherein the operating region (2) of the housing (40) extends in the direction of the longitudinal axis (49) from the rear end (31) of the housing (40) to the distance point (P), wherein the housing (40) has a front region (3), wherein the front region (3) extends in the direction of the longitudinal axis (49) from the distance point (P) to the front end (32) of the housing (40), wherein the housing (40) has an imaginary tangential plane (T) which only tangentially contacts the housing (40), wherein the imaginary tangential plane (T) extends perpendicular to the longitudinal plane (F), wherein the imaginary tangential plane (T) tangentially contacts the handle tube (8), characterized in that the front region (3) can be subdivided with respect to the direction of the longitudinal axis (49) into a battery region (36) and a bar region (37) assigned to the front end (32) of the housing (40), that the battery region (36) is arranged with respect to the direction of the longitudinal axis (49) between the bar region (37) and the operating region (2), that the battery region (36) adjoins the operating region (2), that the battery receptacle (7) is arranged completely in the battery region (36), and that the imaginary tangential plane (T) tangentially contacts the housing (40) in the operating region (2) of the housing (40).

2. Working device according to claim 1, characterized in that the tangential plane (T) has a first side (11) and a second side (12), that the first side (11) faces the horizontal plane (E) in the setting-down position, and that the front region (3) of the housing (40) is arranged exclusively on the first side (11) of the imaginary tangential plane (T).

3. Working device according to claim 1 or 2, characterized in that the front region (3) has a front region distance (m) with respect to the imaginary tangential plane (T), that the front region distance (m) is selected to be small and that the working device (1) is designed such that the front region (3) of the housing (40), upon impact of the working device (1) with the imaginary tangential plane (T) on the horizontal plane (E), can contact the horizontal plane (E) and that the working device (1) can thereby elastically deform in such a manner that the working device (1) can absorb the energy of the impact at three locations, namely at the handle tube (8), at the front region (3) and at the operating region (2).

4. Working device according to claim 3, characterized in that the imaginary tangential plane (T) tangentially contacts the housing (40) at a contact point (10), that the front region distance (m) in the setting-down position is less than 10%, in particular less than 5%, in particular less than 3%, in particular 0% of the distance (d1) of the contact point (10) from the horizontal plane (E).

5. Working device according to one of claims 1 to 4, characterized in that the front region (3) of the housing (40) has an impact projection (9), that the impact projection (9) protrudes in the direction towards the tangential plane (T), and that the front region (3) has the smallest distance from the tangential plane (T) in the region of the impact projection (9).

6. Working device according to one of claims 1 to 5, characterized in that the battery receptacle (7) is arranged in the front region (3) of the housing (40) such that the housing (40) can enclose the battery.

7. Working device according to claims 5 and 6, characterized in that the impact projection (9) is part of the battery receptacle (7), in particular that the impact projection (9) forms an outer wall (13) of the battery receptacle (7).

8. Working device according to claim 6 or 7, characterized in that the insertion direction (50) runs parallel to the longitudinal plane (F), and in particular that the battery receptacle (7) has an insertion opening (18) which is arranged, in the setting-down position, on the side of the working device (1) facing away from the horizontal plane (E).

9. Working device according to one of claims 1 to 8, characterized in that the operating region (2) has a hand stop (16) for placing the hand during actuation of the operating element (15), and that the imaginary tangential plane (T) tangentially contacts the operating region (2) at the hand stop (16), and in particular that the hand stop (16) is formed as a projection (17) of the operating region (2), in particular that the hand stop (16) is substantially hump-shaped.

10. Working device according to one of claims 1 to 9, characterized in that the imaginary tangential plane (T) tangentially contacts the housing (40) at a contact point (10), that the working device (1) has, in the operating region (2), a further operating element (19), wherein the further operating element (19) serves for unlocking the operating element (15) or for holding a locking element (35) in an unlocking position, and that the contact point (10) lies, with respect to the direction of the longitudinal axis (49), between the further operating element (19) and the front region (3).

11. Hand-held, battery-powered working device, wherein the working device (1) is in particular a motor chain saw, a hedge trimmer or a cut-off grinder, wherein the working device (1) comprises a housing (40) and a tool (39) fastened thereto, wherein the housing (40) has a rear end (31) to which an operating region (2) of the housing (40) is assigned, wherein the housing (40) has a front end (32) at which the tool (39) is arranged, wherein the housing (40) extends along a longitudinal axis (49) from the rear end (31) to the front end (32), wherein in the operating region (2) an operating element (15) for operating an electric motor (4) of the working device (1) is arranged, wherein the working device (1) is designed such that it can be set down on a horizontal plane (E) in a provided setting-down position, wherein the working device (1) has a longitudinal plane (F) which extends perpendicular to the horizontal plane (E) in the setting-down position and contains the longitudinal axis (49), wherein the housing (40) has a battery receptacle (7), wherein in the operating region (2) of the housing (40) a further operating element (19) is provided, wherein the further operating element (19) protrudes from an operating element opening (21) in the operating region (2) in the setting-down position in a direction away from the horizontal plane (E), wherein a hand stop (16) for placing the hand during actuation of the operating element (15) is formed by the housing (40) in the operating region (2), wherein, in the setting-down position, the operating element opening (21) has, in a side view perpendicular to the longitudinal plane (F), a lowest point (20) which corresponds to the point of the operating element opening (21) having the smallest distance (d2) from the horizontal plane (E), wherein an imaginary contact plane (B) extends perpendicular to the longitudinal plane (F) through the lowest point (20) and tangentially contacts the battery receptacle (7), characterized in that the hand stop (16) protrudes beyond the imaginary contact plane (B), and that the imaginary contact plane (B) intersects the hand stop (16).

12. Working device according to claim 11, characterized in that the operating element opening (21) is arranged, in the setting-down position, on the side of the operating region (2) facing away from the horizontal plane (E).

13. Working device according to claim 11 or 12, characterized in that the battery receptacle (7) has an outer wall (13) which is tangentially contacted by the imaginary contact plane (B).

14. Working device according to one of claims 11 to 13, characterized in that the hand stop (16) is formed as a projection (17) of the operating region (2) of the housing (40), in particular that the hand stop (16) is substantially hump-shaped.

15. Working device according to one of claims 11 to 14, characterized in that a battery can be inserted into the battery receptacle (7) in an insertion direction (50), and that the insertion direction (50) runs parallel to the longitudinal plane (F), in particular that the battery receptacle (7) has an insertion opening (18), and in particular that the insertion opening (18) is arranged, in the setting-down position, on the side of the working device (1) facing away from the horizontal plane (E).