HAND-OPERATED WORK TOOL
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2024-07-08
- Publication Date
- 2026-04-09
AI Technical Summary
Existing hand-held work tools, such as motor chainsaws, suffer from bulkiness due to wide handles designed to accommodate air filters, leading to ergonomic issues and ingress of dirt through cooling air inlets, compromising tool design and functionality.
A hand-held tool design with an air filter component positioned on the side surface, featuring a longitudinal extension bounded by specific planes, allowing for a compact and ergonomic layout with minimal dirt ingress and efficient cooling, incorporating a battery compartment and handle placement for improved ergonomics.
The design achieves a compact and ergonomic tool with reduced dirt entry, ensuring effective cooling and enhanced user comfort by positioning the air filter laterally and optimizing handle placement near the tool's center of gravity, thereby reducing pivoting forces.
Description
[0001] The invention relates to a hand-held work device according to the preamble of claim 1.
[0002] From DE 20 2019 104 914 U1, a motor chainsaw is known in which the cooling air inlet is located on a side surface. This side surface extends approximately parallel to the plane of the tool, in which the saw chain (not shown) rotates. To ensure sufficient space for a user's hand between the handle and the air filter, the handle must be designed to be wide. This makes the tool bulky and unwieldy. Particularly during felling cuts, the inlet is oriented upwards, allowing dirt to enter the interior of the motor chainsaw through the inlet under the influence of gravity. Document DE 20 2019 104914 U1 discloses a handheld tool according to the preamble of claim 1 and a handheld tool according to the preamble of claim 12.
[0003] From EP 2 431 132 B1 and DE 10 2015 225 748 A1, work equipment with lateral air inlet is known.
[0004] The invention is based on the objective of further developing a generic work tool in such a way that the work tool is compact and ergonomically designed. This objective is achieved by a hand-held work tool with the features of claim 1.
[0005] The invention further aims to develop a generic working device in such a way that the ingress of dirt into the working device is low while simultaneously ensuring good cooling of the working device.
[0006] This problem is solved by a hand-held tool having the features of claim 12.
[0007] According to claim 1, the air filter component is arranged on the side surface of the implement. The air filter component has a longitudinal filter extension. In particular, the area of the filter extension is bounded by a plane located aft of the longitudinal direction and by a plane located anterior to the filter extension. An imaginary tangential plane runs perpendicular to the horizontal plane in the implement's parked position. In the parked position, the tangential plane is only tangent to the side surface of the implement, in particular to an outer surface of the side surface, in the area of the filter extension. The tangential plane therefore does not intersect the side surface of the implement in the area of the filter extension. However, the tangential plane may intersect other areas of the implement, in particular other areas of the side surface.
[0008] The filter's longitudinal length is divided into a front half and a rear half. The front half is positioned in front of the rear half in the longitudinal direction. Specifically, the front half is further away from the operating handle in the longitudinal direction than the rear half.
[0009] According to the invention, the tangent plane is tangent to the side surface in the region of the rear half. In particular, the tangent plane is not tangent to the side surface in the region of the front half of the filter's longitudinal extent. The tangent plane intersects the tool plane with respect to the longitudinal direction in front of the region of the filter's longitudinal extent, in particular in front of the filter component with respect to the longitudinal direction.
[0010] In particular, the tool rotates within the tool plane. Specifically, the tool plane and the tangent plane converge when viewed from the operating handle towards the tool.
[0011] According to the invention, the working device has a receiving shaft arranged with respect to the longitudinal direction in the area of the filter longitudinal extent for a battery pack that can be inserted into the receiving shaft in an insertion direction through a receiving opening of the receiving shaft, or the working device comprises a handle with a handle section that lies above the side surface in the area of the filter longitudinal extent and in a direction perpendicular to the tool plane.
[0012] The inventive design of the working device enables a compact and ergonomic design. Because the inlet chamber does not protrude beyond the tangential plane, which runs at a sharp angle towards the workpiece, there is space on the other side of the tangential plane in the area of the inlet chamber for other components of the working device. For example, a handle can be positioned there. The air filter component can be positioned laterally and gripped by a handle, yet the working device can still be compact and ergonomically designed. Space is available inside the base body of the working device in the area of the rear half of the filter's longitudinal extension. For example, a battery compartment for a battery pack can be located here.
[0013] Advantageously, the tangent plane forms an angle of at least 1°, and particularly at least 3°, with the tool plane. In particular, the air filter component is arranged within this angle. It is also expedient for the tangent plane to form an angle of at most 45°, and particularly at most 20°, with the tool plane. The tangent plane and the tool plane define an angular range within which the air filter component is arranged. The air filter component does not protrude beyond this angular range. In particular, the side surface along the filter's longitudinal extent does not protrude beyond this angular range. This allows for a compact design of the working tool.
[0014] Advantageously, the distance between the outer surface of a side face and the tool plane decreases along the longitudinal extent of the air filter component. This distance is measured perpendicular to the tool plane. The outer distance is the distance between the outer surface of the side face and the tool plane along the longitudinal extent of the air filter component. Specifically, this distance changes along the longitudinal direction. Therefore, the outer distance is not a distance in the geometric sense, but rather a locally variable quantity. In particular, the outer distance decreases essentially continuously along the longitudinal direction.
[0015] According to at least the second alternative of the invention, the working device comprises the handle. The handle has a section that lies above the side surface in the region of the filter's longitudinal extension and in a direction perpendicular to the tool plane. In particular, the handle section lies on a first side of the tool plane. The air filter component also lies on the first side of the tool plane. In particular, the handle section extends in a direction transverse to the direction perpendicular to the tool plane. In particular, the longitudinal direction of the handle section extends in a direction parallel to the tool plane.
[0016] The outer distance along the longitudinal axis of the handle's bail section is advantageously minimal. This provides sufficient space for the user to grip the handle comfortably. Simultaneously, the handle can be positioned in a space-saving manner. The small outer distance allows for a compact and ergonomic design of the handle, particularly the bail section. This reduces the pivoting forces required by the user, thus improving the ergonomics of the tool, especially a chainsaw.
[0017] The outer surface of the side face has a clearance zone. This clearance zone lies below the handle section in a direction perpendicular to the tool plane. Specifically, the handle section has a projection measured perpendicular to the tool plane beyond this clearance zone. The handle section protrudes by this projection beyond the outer surface of the side face in the area of the side face that lies below the handle section perpendicular to the tool plane. This area of the side face is the clearance zone. The projection is also referred to as the handle spacing. Specifically, the handle projection is a geometric distance, meaning it specifies the length of the shortest "distance line" running perpendicular to the tool plane. The handle spacing is measured perpendicular to the tool plane.The bracket spacing corresponds to the distance, measured perpendicular to the tool plane, of the bracket section of the bracket handle to the outside of the side surface of the working tool, in particular to the area of the outside of the side surface that lies perpendicular to the tool plane below the bracket section, in particular to the spacing range.
[0018] The handle has a center of gravity distance, measured perpendicular to the tool plane, from the center of gravity of the tool. This center of gravity distance is also a distance in the geometric sense. Advantageously, the handle projection is 20% to 60%, particularly 30% to 50%, and preferably 35% to 45% of the center of gravity distance. This allows the handle, and especially the handle section, to be positioned close to the center of gravity of the tool. Because the outer distance with respect to the longitudinal direction is small, particularly minimal, in the area of the handle section, it is possible to grip the handle within the handle section even with a small ratio of handle projection to center of gravity distance. This simultaneously enables a compact design of the tool and ergonomic handling and carrying of the handheld tool using the handle.Since the handle is located close to the center of gravity, the leverage required to guide and carry the tool using the handle is low. In particular, the distance from the center of gravity is 9 cm to 15 cm, preferably 11 cm to 13 cm. It is also possible for the distance to the center of gravity to be 8 cm to 12 cm, particularly 9 cm to 11 cm.
[0019] In an advantageous embodiment of the invention, the working device comprises an inlet chamber for the entry of cooling air to be filtered by the air filter component into the working device. However, a design of the working device without an inlet chamber is also possible. The inlet chamber is expediently bounded by the side surface, in particular by an inner surface of the side surface. Specifically, the inlet chamber extends longitudinally at least along the length of the filter. Advantageously, the tangent plane touches the side surface in the region of the rear half of the filter's longitudinal extension in a region of the side surface that bounds the inlet chamber. In particular, the tangent plane touches the outer surface of a region of the side surface whose inner surface directly borders the inlet chamber. Advantageously, the inlet chamber has an inlet opening through which cooling air can flow longitudinally into the inlet chamber from the outside.
[0020] Because the cooling air flows longitudinally through the inlet opening, the tool can be designed such that openings for the direct entry of cooling air from the outside into the tool in a direction perpendicular to a tool plane of the tool are minimal or nonexistent. In particular, the inlet opening can be designed to open primarily in the opposite direction to the longitudinal direction. Advantageously, the proportion of the inlet opening area visible in a side view perpendicular to the tool plane of the tool can be very small. This allows very little material to travel from the tool to the inlet opening and enter the tool. The tool is located, in particular, at the longitudinally forward end of the hand-held tool.Since the air inlet opens towards the rear end of the tool (in the longitudinal direction), the amount of dirt generated by the tool during operation is minimal. Particularly during a felling cut, only a small amount of dirt particles, subject to gravity, can enter the tool through the air inlet. Therefore, the amount of dirt entering the tool through the air inlet is very low.
[0021] In an advantageous embodiment of the invention, the working device has a filter cover. However, a design of the working device without a filter cover is also possible. In particular, the inlet opening for cooling air is formed in the filter cover. This allows for simple manufacturing of the inlet opening. Specifically, the filter cover, in the part where it does not have an inlet opening, can cover an opening of the working device in, on, or at which the filter is arranged. Advantageously, the filter cover forms part of the outer wall. Advantageously, the filter cover forms part of the side surface, particularly in the region of the filter's longitudinal extent. Advantageously, the tangent plane is tangent to the side surface in the region of the rear half of the filter's longitudinal extent in a region of the side surface formed by the filter cover.In particular, the tangential plane touches the filter cover, especially the outside of the filter cover, in the area of the rear half of the filter longitudinal extent of the air filter component.
[0022] The inlet opening, particularly an opening into the interior of the implement, is advantageously located on the side of the implement. This makes the inlet opening easily accessible. As a result, the inlet opening, and especially the area of the air filter, can be made large. The side of the implement offers sufficient space for this.
[0023] The filter cover is advantageously wedge-shaped when viewed perpendicular to the horizontal plane in the storage position.
[0024] The filter cover serves to support the air filter component. In particular, the filter cover at least partially covers the air filter component, and advantageously, in a side view perpendicular to the first side of the tool plane, completely covers it. The air filter component is advantageously held between the filter cover and the base body of the working tool.
[0025] In particular, the air filter component is held in place with clearance between the filter cover and the base of the working device. This allows for simple manufacturing of the working device. The filter cover can be pressed against the base and fit snugly without the need to consider the air filter component in the manufacturing tolerances. Because the filter cover can be pressed against the base, the manufacturing tolerances regarding the relative position of the base and filter cover can be kept low, while still ensuring a reliably tight seal between the filter cover and the base.
[0026] Advantageously, the filter cover and / or the air filter component can be attached to the base body by a single fastening element. This allows the filter cover and / or the air filter component to fit tightly, and in particular airtight, against the base body. Specifically, the single fastening element is a central fastening element. Advantageously, the fastening element is positioned perpendicular to the tool plane in the side view, particularly on the first side of the tool plane, approximately in the center of the filter cover, especially at the centroid of the flat surface associated with the outer contour of the filter. Because the filter cover and / or the air filter component can be attached by a single fastening element, the filter cover and / or the air filter component can be easily and conveniently installed and removed.The air filter component can be quickly removed and is easily accessible, for example for cleaning purposes.
[0027] The fastening element effectively connects the base of the working device and the filter cover. Specifically, a first stop area for the air filter component is arranged on the base in the area of the fastening element. Advantageously, a second stop area for the air filter component is arranged on the filter cover. The air filter component is held with some play between the first and second stop areas. This ensures that the filter cover is reliably held even with tight manufacturing tolerances and that the filter cover is pressed tightly against the base.
[0028] At least according to the first alternative of the invention, the working device has a receiving compartment for a battery pack. The battery pack can be inserted into the receiving compartment through a receiving opening in the receiving compartment. In particular, the insertion direction runs parallel to the tool plane. At least according to the first alternative of the invention, the receiving compartment is arranged in the region of the filter's longitudinal extent with respect to the longitudinal direction. Advantageously, the receiving compartment is arranged in the region of the rear half of the filter's longitudinal extent with respect to the longitudinal direction. By tangent the tangent plane of the side surface in the region of the rear half and intersecting the tool plane with the tangent plane with respect to the longitudinal direction in front of the filter's longitudinal extent, sufficient space is provided for the receiving compartment in the region of the rear half of the filter's longitudinal extent, as described in the invention.Simultaneously, in the area of the front half of the filter's longitudinal extension, outside the main body of the device, there is sufficient space for a grip area into which the user can grasp with their fingers. The handle section can be positioned close to the main body, allowing the device to be designed compactly and ergonomically, even with a large battery compartment.
[0029] The intake chute has a depth measured longitudinally and a width measured perpendicular to the tool plane. Specifically, the width is greater than the depth. Specifically, the width is at least 50%, and more specifically, at least 60%, of the maximum width of the tool's base body, measured perpendicular to the tool plane. Specifically, the tool's base body has its maximum width in the rear half of the filter's longitudinal extent. This allows a large battery pack to be accommodated in the battery compartment.
[0030] It is expediently provided that an imaginary projection of the air filter component in a direction perpendicular to the tool plane onto the tool plane and an imaginary projection of the receiving shaft in a direction perpendicular to the tool plane onto the tool plane overlap in the tool plane.
[0031] The side surface is conveniently free of the opening for a battery compartment. This allows the air filter component, and especially its filter surface, to be particularly large. No space needs to be provided on the side surface for a battery compartment opening.
[0032] The inlet chamber defines a section of a cooling air flow path. This flow path extends from the inlet opening to the motor of the handheld tool, which drives the tool. Specifically, the flow path passes through the inlet chamber. Along the flow path, the inlet chamber has flow cross-sections for the cooling air. The cooling air passes through these cross-sections as it flows through the inlet chamber. These cross-sections are perpendicular to the longitudinal direction, and in particular, they are planes. Specifically, the flow cross-sections are transverse to the flow path.
[0033] In particular, the air filter component limits all flow cross-sections. This causes the cooling air to flow along the filter surface of the air filter component. The working device can then be designed such that the air enters a clean air chamber of the working device, in particular the interior of a housing of the working device's base body, while the cooling air, after entering the working device, flows longitudinally along the outside of the clean air chamber, in particular the interior, especially along an opening of the clean air chamber, in particular the interior, and especially along the inlet chamber.During this longitudinal flow, cooling air can successively enter the clean air space, particularly the interior of the housing, from a longitudinally extending opening in the inlet chamber in, on, or at which the air filter component is arranged. This causes the volume of cooling air that has not yet entered the clean air space, particularly the interior, to decrease as it flows longitudinally. Consequently, the volume flow rate of the cooling air decreases longitudinally. This results in the problem that the flow, and especially the volume flow rate, is uneven. Without further measures, the flow, and especially the volume flow rate, decreases along the flow path with increasing distance from the inlet opening, particularly before entering the clean air space, and especially the interior of the housing.To still achieve good, uniform cooling, the cross-sectional areas of the inlet chamber can be designed to decrease in the longitudinal direction. This allows for a uniform flow, and in particular a uniform volumetric flow. This results in good, uniform cooling and ensures that the entire filter surface is uniformly clogged. This increases the service life of the air filter.
[0034] It is advantageous that the flow cross-sections become continuously smaller in the direction of the flow path.
[0035] In an advantageous embodiment of the invention, the inlet chamber extends longitudinally from the inlet opening. This allows the effect of a uniform airflow to occur immediately after the cooling air enters through the inlet opening. Advantageously, the inlet chamber is bounded at least on one side by an outer wall of the working device. In particular, the inner side of the outer wall binds the inlet chamber.
[0036] In a further advantageous embodiment, the working device is designed such that the cooling air flows along a filter surface of the air filter component in the inlet chamber. In particular, the working device is designed such that the cooling air, as it flows along the filter surface, gradually passes through the air filter component into a clean air chamber of the working device.
[0037] By decreasing the distance between the outer sides in the longitudinal direction, the reduction of the flow cross-sections of the inlet chamber can be easily achieved.
[0038] In particular, the filter cover limits the inlet chamber. The wedge shape of the filter cover, as described above, allows for a simple reduction of the flow cross-sections of the inlet chamber in the longitudinal direction. Specifically, the inlet chamber is formed by the filter cover and the air filter component. In particular, the inlet chamber has an inlet opening for cooling air at one end. Advantageously, the other end of the inlet chamber, for the outlet of cooling air into the interior of the working equipment, is formed entirely by the air filter component, and in particular, completely covered by the air filter component.
[0039] The working tool has an upward direction. This upward direction extends transversely, and in particular perpendicularly, to the longitudinal direction. Specifically, the upward direction extends parallel to the tool plane. When the working tool is placed on the horizontal plane in its designated parking position, the upward direction expediently extends perpendicular to the horizontal plane. The upward direction runs, in particular, from the bottom of the working tool towards the top of the tool housing.
[0040] The air filter component can be inclined at an angle of at least 5°, and in particular at most 40°, to the upward direction, especially to the tool plane. Advantageously, the air filter component extends essentially in one plane. In particular, the distance of the air filter component to the tool plane increases in the upward direction. This distance represents the local distance of individual points of the air filter component to the tool plane. Such an inclined arrangement of the air filter component improves its self-cleaning.
[0041] To solve the further problem, claim 12 provides that the inlet chamber has at least one inlet opening for the entry of cooling air into the working tool. The air filter component delimits the inlet chamber. The inlet chamber delimits a section of a flow path for the cooling air. The flow path for cooling air extends from the inlet opening to the motor of the hand-held working tool to drive the tool. In particular, the flow path passes through the inlet chamber. The inlet chamber has flow cross-sections for the cooling air along the flow path. In particular, the cooling air passes through the flow cross-sections as it flows through the inlet chamber. The flow cross-sections extend perpendicular to the longitudinal direction, in particular in planes. In particular, the flow cross-sections extend transversely to the flow path.
[0042] According to the invention according to claim 12, the inlet opening is arranged such that cooling air can flow longitudinally through the inlet opening. Because the cooling air flows longitudinally through the inlet opening, the working tool can be designed such that openings for the inlet of cooling air into the working tool in a direction perpendicular to a tool plane of the working tool are only minimally present or not present at all. In particular, the tool rotates within the tool plane. The inlet opening can be designed to open primarily in the direction opposite to the longitudinal direction. Advantageously, the proportion of the area of the inlet opening that is visible in a side view, particularly on a first side of the tool plane on which the air filter component is also arranged, perpendicular to the tool plane of the working tool, can be very small.This allows very little material to travel from the tool to the inlet opening and enter the tool. The tool is positioned at the longitudinally forward end of the handheld tool. Because the inlet opening faces the longitudinally rear end of the tool, the amount of dirt generated by the tool during operation is minimal. Particularly during a felling cut, only a small amount of dirt particles, subject to gravity, can enter the tool through the cooling air inlet. Therefore, the amount of dirt entering the tool through the cooling air inlet is very low.
[0043] Furthermore, the air filter component limits all flow cross-sections. This causes the cooling air to flow along a filter surface of the air filter component. The working device can then be designed such that it enters a clean air space, in particular the interior of a housing of the working device, while the cooling air, after entering the working device, flows longitudinally along the outside of the clean air space, in particular along the outside of the interior, in particular along an opening of the interior, and in particular along the air filter component, in particular along the inlet space.During this longitudinal flow, cooling air can successively enter the interior of the housing from a longitudinally extending opening in the inlet chamber, in, on, or at which the air filter component is arranged. As the air flows along this longitudinal path, the volume of cooling air that has not yet entered the interior decreases. Consequently, the volume flow rate of the cooling air decreases along the longitudinal direction. This results in the problem that the flow, and in particular the volume flow rate, is uneven. Without further measures, the flow, and especially the volume flow rate, decreases along the flow path with increasing distance from the inlet opening, particularly before entering the clean air chamber, and especially before entering the interior of the housing. To nevertheless achieve a good, uniform cooling effect, the invention provides that the flow cross-sections of the inlet chamber decrease in the longitudinal direction.This ensures a uniform flow, particularly a consistent volume flow. This results in good, uniform cooling. Consequently, the entire filter surface of the air filter component is evenly clogged. This increases the service life of the air filter component.
[0044] It is advantageous that the flow cross-sections become continuously smaller in the direction of the flow path.
[0045] In an advantageous embodiment of the invention, the inlet chamber extends longitudinally from the inlet opening. This allows the effect of a uniform flow to occur immediately after the cooling air enters through the inlet opening.
[0046] Advantageously, the inlet chamber is bounded on at least one side by an outer wall of the working device. In particular, the inner side of the outer wall binds the inlet chamber. It is also advantageous if the flow cross-sections are bounded by the outer wall of the working device.
[0047] In a further advantageous embodiment, the working device is designed such that the cooling air flows along a filter surface of the air filter component in the inlet chamber. In particular, the working device is designed such that the cooling air, as it flows along the filter surface, gradually passes through the air filter component into a clean air chamber of the working device.
[0048] The working device advantageously has a base. In the storage position, the base faces the horizontal plane. Specifically, the working device has a housing top opposite the base. Specifically, the working device has a side surface. The side surface connects the housing top and the base. The side surface delimits the working device along its longitudinal direction perpendicular to the tool plane. Advantageously, the intake chamber, especially the inlet opening, is located on the side surface of the working device. This makes the intake chamber, especially the inlet opening, easily accessible. This allows the inlet opening, especially the area of the air filter, to be made large. The side surface of the working device provides sufficient space for this. The intake chamber is advantageously delimited by the side surface, especially by an inner surface of the side surface.
[0049] The working device expediently includes a handle. The handle has a section that lies above the entry chamber in a direction perpendicular to the tool plane. In particular, the handle section extends transversely to the direction perpendicular to the tool plane. Specifically, the longitudinal direction of the handle section extends parallel to the tool plane. Specifically, the handle section lies on a first side of the tool plane on which the entry chamber is also located.
[0050] Advantageously, the distance between the outer surface of a side face and the tool plane decreases longitudinally in the inlet chamber. This distance is measured perpendicular to the tool plane. The outer surface distance is the distance from the outer surface of the side face to the tool plane along the longitudinal extent of the air filter component. Specifically, this distance changes along the longitudinal direction. Therefore, it is not a distance in the geometric sense, but rather a locally variable quantity. Specifically, the outer surface distance decreases longitudinally from the inlet opening, through which cooling air can flow longitudinally into the inlet chamber, to the bracket section. In particular, the outer surface distance decreases essentially continuously in the longitudinal direction, especially from the inlet opening to the bracket section.By decreasing the distance between the outer sides in the longitudinal direction, the reduction of the flow cross-sections of the inlet chamber can be achieved in a simple way.
[0051] The outer distance along the longitudinal axis of the handle's bail section is advantageously minimal. This provides sufficient space for the user to grip the handle comfortably. Simultaneously, the handle can be positioned in a space-saving manner. The small outer distance allows for a compact and ergonomic design of the handle, particularly the bail section. This reduces the pivoting forces required by the user, thus improving the ergonomics of the tool, especially a chainsaw.
[0052] The outer surface of the side face has a clearance zone. This clearance zone lies below the handle section in a direction perpendicular to the tool plane. Specifically, the handle section has a projection measured perpendicular to the tool plane beyond this clearance zone. The handle section protrudes by this projection beyond the outer surface of the side face in the area of the side face that lies below the handle section perpendicular to the tool plane. This area of the side face is the clearance zone. The projection is also referred to as the handle spacing. Specifically, the handle projection is a geometric distance, meaning it specifies the length of the shortest "distance line" running perpendicular to the tool plane. The handle spacing is measured perpendicular to the tool plane.The bracket spacing corresponds to the distance, measured perpendicular to the tool plane, of the bracket section of the bracket handle to the outside of the side surface of the working tool, in particular to the area of the outside of the side surface that lies perpendicular to the tool plane below the bracket section, in particular to the spacing range.
[0053] The handle has a center of gravity distance, measured perpendicular to the tool plane, from the center of gravity of the tool. This center of gravity distance is also a distance in the geometric sense. Advantageously, the handle projection is 20% to 60%, particularly 30% to 50%, and preferably 35% to 45% of the center of gravity distance. This allows the handle, and especially the handle section, to be positioned close to the center of gravity of the tool. Because the outer distance with respect to the longitudinal direction is small, particularly minimal, in the area of the handle section, it is possible to grip the handle within the handle section even with a small ratio of handle projection to center of gravity distance. This simultaneously enables a compact design of the tool and ergonomic handling and carrying of the handheld tool using the handle.Since the handle is located close to the center of gravity, the leverage required to guide and carry the tool using the handle is low. In particular, the distance from the center of gravity is 9 cm to 15 cm, preferably 11 cm to 13 cm. It is also possible for the distance to the center of gravity to be 8 cm to 12 cm, particularly 9 cm to 11 cm.
[0054] In an advantageous embodiment of the invention, the working device has a filter cover. However, a design of the working device without a filter cover is also possible. Advantageously, the inlet chamber is limited by the filter cover. In particular, the inlet opening for cooling air is formed in the filter cover. This allows for simple manufacturing of the inlet opening. In particular, the filter cover can, in the part where it does not have an inlet opening, cover an opening of the working device in, on, or at which the air filter component is arranged. Advantageously, the filter cover forms part of the outer wall. Advantageously, the filter cover forms part of the side surface.
[0055] The filter cover, when viewed perpendicular to the horizontal plane in the standby position, is advantageously wedge-shaped. This allows for a simple reduction in the flow cross-sections in the longitudinal direction.
[0056] The filter cover serves to support the air filter component. In particular, the filter cover at least partially covers the air filter component, and advantageously, in a side view perpendicular to the first side of the tool plane, completely covers it. The air filter component is advantageously held between the filter cover and the base body of the working tool.
[0057] In particular, the air filter component is held in place with clearance between the filter cover and the base of the working device. This allows for simple manufacturing of the working device. The filter cover can be pressed against the base and fit snugly without the need to consider the air filter component in the manufacturing tolerances. Because the filter cover can be pressed against the base, the manufacturing tolerances regarding the relative position of the base and filter cover can be kept low, while still ensuring a reliably tight seal between the filter cover and the base.
[0058] Advantageously, the filter cover and / or the air filter component can be attached to the base body by a single fastening element. This allows the filter cover and / or the air filter component to fit tightly, and in particular airtight, against the base body. Specifically, the single fastening element is a central fastening element. Advantageously, the fastening element is positioned perpendicular to the tool plane in the side view, particularly on the first side of the tool plane, approximately in the center of the filter cover, especially at the centroid of the flat surface associated with the outer contour of the filter. Because the filter cover and / or the air filter component can be attached by a single fastening element, the filter cover and / or the air filter component can be easily and conveniently installed and removed.The air filter component can be quickly removed and is easily accessible, for example for cleaning purposes.
[0059] The fastening element effectively connects the base of the working device and the filter cover. Specifically, a first stop area for the air filter component is arranged on the base in the area of the fastening element. Advantageously, a second stop area for the air filter component is arranged on the filter cover. The air filter component is held with some play between the first and second stop areas. This ensures that the filter cover is reliably held even with tight manufacturing tolerances and that the filter cover is pressed tightly against the base.
[0060] In an advantageous embodiment of the invention, the working device has a receiving shaft for a battery pack. The battery pack can be inserted into the receiving shaft through a receiving opening in the receiving shaft. In particular, the insertion direction runs parallel to the tool plane. Specifically, the receiving shaft is arranged longitudinally in the area of the intake chamber. Due to the wedge-shaped design of the intake chamber, especially the filter cover, there is sufficient space for the receiving shaft in the rear region, particularly in the rear half of the intake chamber. Simultaneously, in the anterior half of the intake chamber, outside the main body of the working device, there is sufficient space for a gripping area into which the user can grasp the battery pack with their fingers.The ironing section can be positioned close to the main body, allowing the tool to be designed to be compact and ergonomic even with a large battery compartment.
[0061] The receiving chamber has a depth measured longitudinally and a width measured perpendicular to the tool plane. Specifically, the width is greater than the depth. Specifically, the width is at least 50%, and more specifically at least 60%, of the maximum width of the tool's base body, measured perpendicular to the tool plane. Specifically, the tool's base body has its maximum width in the rear half of the entry chamber, relative to the longitudinal direction. This allows a large battery pack to be accommodated in the battery compartment.
[0062] It is expediently provided that an imaginary projection of the entry space in a direction perpendicular to the tool plane onto the tool plane and an imaginary projection of the receiving shaft in a direction perpendicular to the tool plane onto the tool plane overlap in the tool plane.
[0063] The side surface is conveniently free of the opening for a battery compartment. This allows the air filter component, and especially its filter surface, to be particularly large. No space needs to be provided on the side surface for a battery compartment opening.
[0064] In particular, the filter cover limits the inlet chamber. The wedge shape of the filter cover, as described above, allows for a simple reduction of the flow cross-sections of the inlet chamber in the longitudinal direction. Specifically, the inlet chamber is formed by the filter cover and the air filter component. Specifically, the inlet chamber has an inlet opening for cooling air at one end. Advantageously, the other end of the inlet chamber, for the outlet of cooling air into the clean air space of the working equipment, especially into the interior of the working equipment, is formed entirely by the air filter component, and in particular, completely covered by the air filter component.
[0065] The working tool has an upward direction. This upward direction extends transversely, and in particular perpendicularly, to the longitudinal direction. Specifically, the upward direction extends parallel to the tool plane. When the working tool is placed on the horizontal plane in its designated parking position, the upward direction expediently extends perpendicular to the horizontal plane. The upward direction runs, in particular, from the bottom of the working tool towards the top of the tool housing.
[0066] The air filter component can be inclined at an angle of at least 5°, and in particular at most 40°, to the upward direction, especially to the tool plane. Advantageously, the air filter component extends essentially in one plane. In particular, the distance of the air filter component to the tool plane increases in the upward direction. This distance represents the local distance of individual points of the air filter component to the tool plane. Such an inclined arrangement of the air filter component improves its self-cleaning.
[0067] Exemplary embodiments of the invention are explained below with reference to the drawing. The drawing shows: Fig. 1 is a perspective view of a hand-held tool without a tool, with the filter cover shown in an exploded view, removed from the base of the tool. Fig. 2 is a schematic side view of the tool. Fig. 1 with tool, and viewing direction perpendicular to the first side of the tool plane of the tool, on which the air filter component is also arranged, Fig. 2a a schematic side view of an alternative embodiment of the working device made of Fig. 1 , in which the air filter component lies open on the first side surface without being covered by a filter cover, wherein the working device with tool and in the direction of view perpendicular to the first side of the tool plane of the tool, on which the air filter component is also arranged, Fig. 3 a side view of the rear end of the working device Fig. 1 in the direction of its longitudinal direction, Fig. 4 a schematic top view of the working tool from above Fig. 1 or a schematic top view of the work equipment Fig. 2a or a schematic top view of the work equipment Fig. 9 , Fig. 5 a side view of the outside of the filter cover of the working device made of Fig. 1 , Fig. 6 a side view of the inside of the filter cover of the working device made of Fig. 1 , Fig. 7 a side view of the rear side of the filter cover made of Fig. 5 , which, when the filter cover is mounted, faces the rear end of the working device, Fig. 8 a top view from below of the filter cover Fig. 5 , to the lower side, which, in the mounted state of the filter cover when the work device is placed on its support surface on a horizontal surface, points downwards, Fig. 9 a schematic side view of an alternative embodiment of the work device made of Fig. 1 with the filter cover and air filter component removed, viewed perpendicular to the first side of the tool plane of the tool (not shown), on which the air filter component is also to be arranged, Fig. 10 a perspective view from below of the working tool. Fig. 9 with the filter cover removed, in which the opening into the interior of a base housing is visible, Fig. 11 a sectional view of a horizontal section through the working device made of Fig. 9 with the air filter component and filter cover mounted along the in Fig. 13 The section plane XI-XI shown in Fig. 12 is a sectional view of a horizontal section through the working tool. Fig. 9 with the air filter component and filter cover mounted along the in Fig. 13 The section plane XII-XII shown in Fig. 13 is a sectional view of a vertical section through the working tool. Fig. 9 with the air filter component and filter cover mounted along the in Fig. 11 section plane XIII-XIII shown, Fig. 13a an enlarged detail from Fig. 13 and Fig. 14 a sectional view of a vertical section through the working tool made of Fig. 9 with the air filter component and filter cover mounted along the in Fig. 11 drawn section plane XIV-XIV.
[0068] Fig. 1 shows a hand-held work device 1. The hand-held work device 1 comprises a Fig. 2 tool 6 shown (in Fig. 1 (not shown). The handheld tool can be a chainsaw, an angle grinder, or a similar handheld tool. The tool 1 is portable when used as intended. The tool 1 is handheld when used as intended. In the exemplary embodiments, the tool 1 is a chainsaw. In the exemplary embodiments, the chainsaw is a so-called rear-handle chainsaw or tree-felling saw. However, it can also be a tree-pruning saw with a top-mounted handle.
[0069] As in Fig. 2 In schematic representation, the hand-held tool 1 comprises a motor 7 for driving the tool 6. In the exemplary embodiments, the motor 7 is an electric motor. The tool 6 is a saw chain. However, it can also be, particularly if the tool is an angle grinder, that the tool 6 is a saw blade or a cutting disc. In the exemplary embodiments, the tool 6 rotates around a guide rail 33 during operation.
[0070] In all embodiments, the working device 1 comprises a control handle 34. A control element 35 is arranged on the control handle 34. By means of the control element 35, the operator can specify the power of the motor 7 or the speed of the motor 7 or the tool 6. The control handle 34 defines a grip opening 36. The user can reach through the grip opening 36 with the fingers of their hand and thus enclose the control handle 34. The grip opening 36 completely penetrates the working device 1, in particular a base body 37 of the working device 1. In addition to the control handle 34, the working device 1 comprises a loop handle 27 in all embodiments. The loop handle 27 serves for carrying and guiding the working device 1. The loop handle 27 is formed by a handle tube. The user can completely grasp the handle tube.
[0071] The bow handle 27 is arranged between the operating handle 34 and the tool 6. A longitudinal direction 50 extends from the operating handle 34 towards the tool 50. This also applies in the case of a tree care saw. The longitudinal direction 50 runs parallel to a horizontal plane when the tool 1 is placed on the horizontal plane. In the exemplary embodiment, the longitudinal direction 50 corresponds to the longitudinal direction of the guide rail 33. The bow handle 27 is arranged between the operating handle 34 and the tool 6 with respect to the longitudinal direction 50. The operating handle 34 is located behind the tool 6 with respect to the longitudinal direction 50. The tool 6 is located in front of the operating handle 34 with respect to the longitudinal direction 50.
[0072] If, along the longitudinal direction 50, there is first a starting point, then a first point, and then a second point, and if the second point, measured from the starting point in the longitudinal direction 50, has a greater distance to the starting point than the first point, then the second point lies ahead of the first point with respect to the longitudinal direction 50. The first point lies behind the second point with respect to the longitudinal direction 50.
[0073] The working device 1 has a front end 2 and a rear end 3. During operation, the front end 2 faces away from the user. The rear end 3 faces the user. The tool 6 is located at the front end 2. In this embodiment, the front end 2 is located at the front end of the guide rail 33. As the tool 6 rotates around the guide rail 33, it passes the front end 2 of the working device 1. The rear end 3 is located at the rear end of the operating handle 34. The operating handle 34 forms the rear end 3 of the working device 1. A longitudinal direction 50 extends from the rear end 3 to the front end 2. During operation, the longitudinal direction 50 points away from the operator. In this embodiment, the longitudinal direction 50 corresponds to the longitudinal direction of the guide rail 33.The handle 27 is arranged between the front end 2 and the rear end 3 with respect to the longitudinal direction 50.
[0074] The work tool 1 can be placed on a horizontal plane, particularly in a parking position. The work tool 1 comprises a base 17. In the exemplary embodiments, the work tool 1 can be placed on its base 17. The base 17 forms a parking surface. However, it can also be provided that the work tool can be placed on feet and that there is a gap between the base 17 and the horizontal plane. In any case, the base 17 faces the horizontal plane in the parking position. The parking position is also referred to as the parking state. When the work tool 1 is placed on the horizontal plane, the longitudinal direction 50 runs parallel to the horizontal plane. In the exemplary embodiments, the longitudinal direction 50 runs parallel to the parking surface formed by the base 17.
[0075] As in Fig. 2 As shown, the working device 1 includes an inlet opening 4. The inlet opening 4 serves to allow cooling air to enter the working device 1. The cooling air is intended for cooling the motor 7, which is designed as an electric motor, and in particular for cooling the electronic components of the electric motor. The working device 1 includes an air filter component 12 for filtering the cooling air. The air filter component 12 is in Fig. 1 depicted. Fig. 2 Figure a shows an alternative embodiment with an alternatively designed air filter component 12. In the exemplary embodiments, the air filter component 12 comprises a filter frame and an air filter. The air filter is specifically held within the filter frame. The air filter is the unit that, on its own, filters the air. In the exemplary embodiments, the air filter of the air filter component 12 is a fine filter. The fine filter has a mesh size of less than 100 µm. In exemplary embodiments, the air filter of the air filter component 12 is a flat filter. However, the air filter of the air filter component 12 can also be any other type of air filter. The air filter component 12 can also consist solely of an air filter. It is also possible that the air filter component does not include a filter frame.
[0076] The working device 1 comprises a housing 5. The motor 7 is arranged in the housing 5. The housing 5 forms the outer boundary of the working device 1. In the exemplary embodiment, the motor 7 is arranged in the base body 37 of the working device 1. The base body 37 has a base housing 38, which is also in Fig. 1 The motor 7 is arranged in the base housing 38 of the base body 37. The housing 5 is at least partially formed by the base housing 38. The handle 27 extends over the housing 5. The handle 27 extends over the base body 37. The handle 27 extends over the base housing 38. The handle 27 is not part of the housing 5. The handle 27 is not part of the base housing 38.
[0077] As in Fig. 2 As shown, the tool 6 has a tool plane E. The tool plane E runs parallel to the longitudinal direction 50. The longitudinal direction 50 runs parallel to the tool plane E. In the exemplary embodiments, the tool plane E runs perpendicular to the base 17 of the working device 1. The handle opening 36 penetrates the working device 1, in particular the base housing 38 of the working device 1, completely in a direction perpendicular to the tool plane E. In the parking position, the tool plane E runs perpendicular to the horizontal plane. When the working device 1 is parked on a horizontal plane, the tool plane E runs perpendicular to the horizontal plane. The tool 6 rotates in the tool plane E. In the exemplary embodiment, the saw chain rotates around the guide rail 33 in the tool plane E. However, it can also be provided, particularly if the working device is an angle grinder, that the tool 6 is a circular saw blade or a cutting disc.In this case, the circular saw blade rotates in the plane of the tool. The axis of rotation of the tool 6 is perpendicular to the tool plane E.
[0078] As from the Figuren 2 , 3 and 4 As can be seen, in this embodiment the inlet opening 4 is arranged such that cooling air can flow through the inlet opening 4 in the longitudinal direction 50. The cooling air can thus enter the working tool 1 through the inlet opening 4 in a direction from the rear end 3 of the working tool 1 towards the front end 2 of the hand-held working tool 1. The fact that the cooling air can flow through the inlet opening 4 in the longitudinal direction 50 is particularly evident in Fig. 3 This is evident in this side view of the rear end 3, where the inlet opening 4 for cooling air from the outside into the interior of the hand-held tool 1 is visible. More than half, in particular more than two-thirds, of the cooling air enters the tool 1 longitudinally through the inlet opening 4.
[0079] In the exemplary embodiment according to Fig. 2a In contrast, it is provided that the cooling air enters the working device 1 essentially in a transverse direction, in particular in a direction perpendicular to the longitudinal direction 50. In the exemplary embodiment according to Fig. 2a The cooling air enters the working tool 1 in a direction transverse, in particular in a direction perpendicular to the tool plane E. In the exemplary embodiment according to Fig. 2a A lateral inlet opening 62 is provided for the entry of cooling air into the working device 1. In the exemplary embodiment according to Fig. 2a The air filter component 12 forms part of the outer housing 5 of the working device 1.
[0080] In all embodiments, the tool plane E has a Fig. 3 The first side 46 is shown. The tool plane E has a second side 47. The tool plane E separates the first side 46 from the second side 47. The air filter component 12 is located entirely on the first side 46 of the tool plane E. The inlet opening 4, or the inlet opening 62, is located entirely on the first side.
[0081] As in Fig. 2 and for the alternative version of the work device 1 from Fig. 2 in Fig. 2a As shown, the housing 5 of the hand-held tool 1 has an outer housing contour 8 in a side view perpendicular to the tool plane E, in particular to the first side 46 of the tool plane E. When projected onto the tool plane E in a direction perpendicular to the tool plane E, the outer housing contour 8 defines an imaginary housing surface 9 within the tool plane E. The outer housing contour 8 encloses all openings of the tool 1 located within it. In particular, the outer housing contour 8 encloses the handle opening 36. The housing surface 9 has no areas enclosed by the housing surface 9 that are not part of the housing surface 9. The housing surface 9 has no internal contour. The housing surface 9 is bounded by a single boundary line, namely the outer housing contour 8, which completely surrounds the housing surface 9.
[0082] The working device 1 includes a brake lever 43 in all embodiments. The brake lever 43 is pivotally mounted on the base body 37. The brake lever 43 is pivotally mounted on the housing 5. The brake lever 43 serves to brake the tool 6. The brake lever 43 is partially located outside the outer contour 8 of the housing. The brake lever 43 projects beyond the outer contour 8 of the housing.
[0083] The working device 1 comprises, in all embodiments, a Fig. 2 The claw stop 44 is shown. The claw stop 44 is fixed to the housing 5. The claw stop 44 serves as a stop for the working tool 1 when the tool 6 engages a workpiece. The claw stop 44 lies at least partially outside the outer contour 8 of the housing. The claw stop 44 projects beyond the outer contour 8 of the housing.
[0084] The working device 1 is (except for the embodiment shown in the following) Fig. 2a ) in the side view perpendicular to the first side 46 of the tool plane E within the outer contour of the housing 8 over at least 95%, in particular over at least 97%, advantageously over at least 98.5% of the housing surface 9, free of openings for the ingress of cooling air into the working tool 1. The side view perpendicular to the first side 46 of the tool plane E is the side view of the working tool 1 looking in the direction perpendicular to the tool plane E, specifically from the first side 46 of the tool plane E. One is therefore located on the first side 46 of the tool plane E and looking towards the tool plane E.
[0085] A projection of all openings for the ingress of cooling air, visible in a side view perpendicular to the first side 46 of the tool plane E, onto the tool plane E covers a surface area of less than 5%, in particular less than 3%, advantageously less than 1.5% of the housing surface 9. The area of the housing surface 9 that is free of projections of the openings for the ingress of cooling air into the working device 1 is at least 95%, in particular at least 97%, and in the exemplary embodiment at least 98.5% of the housing surface 9.
[0086] The term "opening" refers to the portion of a penetration opening for the entry of cooling air into the working tool 1 that is visible in a side view perpendicular to the first side 46 of the tool plane E. The penetration opening may be larger than the opening. In a side view perpendicular to the first side 46 of the tool plane E, the penetration opening may be covered by components of the working tool 1.
[0087] The inlet opening 4 is a penetration opening for the entry of cooling air into the working device 1. The inlet opening 4 is located on the outside of the working device 1. The inlet opening 4 represents the first inlet port for the entry of cooling air from the outside into the working device 1. The inlet opening 4 is an opening for the entry of cooling air into the working device 1 in the sense described above. In the exemplary embodiment, the projected area of the opening of the inlet opening 4 and the penetration opening of the inlet opening 4 are identical. However, it is also possible that the projected area of the penetration opening is larger than the projected area of the opening.
[0088] Instead of in the tool plane E, the housing outer contour 8 can also limit the housing surface 9 in an imaginary plane running parallel to the tool plane E.
[0089] As in Fig. 2 As shown, the working device 1 has an outer wall 10. The inlet opening 4 penetrates the outer wall 10 completely. A penetration opening penetrates the outer wall 10 completely. An opening penetrates the outer wall 10 completely. The outer wall 10 represents the immediate boundary of the working device 1 vis-à-vis the external area. The outer wall 10 forms at least a portion of a wall of the housing 5.
[0090] As especially in the Figuren 2 and 5 bis 8 As shown, the working device 1 (except for the embodiment shown below) Fig. 2a A lower inlet opening 11 is provided. The lower inlet opening 11 is intended for the entry of cooling air into the working tool 1. The lower inlet opening 11 is provided in addition to the inlet opening 4. The lower inlet opening 11 is arranged such that cooling air can flow through the lower inlet opening 11 in an upward direction 49. The flow cross-section of the lower inlet opening 11, viewed in the upward direction 49, is at least twice as large, and in the exemplary embodiment at least three times as large, as the flow cross-section of the lower inlet opening 11, viewed in the longitudinal direction. The upward direction 49 extends transversely to the longitudinal direction 50. The upward direction 49 extends parallel to the tool plane E. In the exemplary embodiment, the upward direction 49 extends perpendicular to the longitudinal direction 50.When the working tool 1 is placed on a horizontal plane in the designated parking position, the upward direction 49 extends perpendicular to the horizontal plane in the exemplary embodiment. In the exemplary embodiment, the upward direction 49 extends perpendicular to the ground 17. In the exemplary embodiments (with the exception of the . Fig. 2a The lower inlet opening 11 is designed separately from the inlet opening 4. However, it is also possible to have a single inlet opening through which cooling air can enter the working device 1 both longitudinally 50 and upwards 49. In this case, the single inlet opening is only conceptually divided into an inlet opening 4 and a lower inlet opening 11.
[0091] The working device 1 is designed such that dirt loosened and falling from the air filter component 12 due to gravity can fall out of the working device 1 through the lower inlet opening 11. The lower inlet opening 11 serves as a dirt outlet. In the exemplary embodiments, with the exception of Fig. 2a The air filter component 12 can be inclined at an angle of at least 5° to the upward direction 49. In all embodiments, the air filter component 12 extends essentially in one plane.
[0092] As in the Figuren 3 and 4 The hand-held work device 1, shown schematically with a dashed line, has in all embodiments except the embodiment according to Fig. 2a an inlet chamber 24. The inlet chamber 24 serves for the entry of cooling air into the working device 1. The working device 1 is designed such that cooling air initially enters the inlet chamber 24 unfiltered.
[0093] From the inlet chamber 24, the cooling air then passes through the air filter component 12 into a clean air chamber 14. This applies to all embodiments. The area along the flow path 26 downstream of the air filter 12 is designated as the clean air chamber 14.
[0094] In the two exemplary embodiments according to the Figuren 1, 2 , 2a , 3 and 4 Immediately after passing through the air filter component 12, the cooling air enters an interior space 39 of the base body 37. Cooling air to be filtered enters the working device 1 through the air filter component 12 into the inlet space 24. The air filter component 12 defines the inlet space 24.
[0095] The entrance room 24 (in all embodiments except the one after) Fig 2a (available) limits a section 25 of a flow path 26 for cooling air. The course of the flow path 26 in the working device 1 is for all embodiments in the overall view of the Figuren 1 , 3 and 4 The flow path 26 is schematically depicted with a dotted line. The flow path 26 leads from the inlet opening 4 to the motor 7. The position of the motor 7 within the base housing 38 of the base body 37 of the hand-held working device 1 is also shown in Fig. 4 The flow path 26 is shown schematically with a dashed line. From the motor 7, the flow path 26 leads out of the working device 1. The flow path 26 passes through the inlet chamber 24. The inlet chamber 24 is part of the flow path 26.
[0096] Along the flow path 26, the entrance chamber 24 has the features in the Figuren 3 and 4exemplary for all embodiments except the embodiment according to Fig. 2a Flow cross-sections 31, 32 are schematically depicted with a dashed line. Examples are shown in the Figuren 3 and 4The first flow cross-section 31 and the second flow cross-section 32 are shown. Cooling air passing through the second flow cross-section 32 has also passed through the first flow cross-section 31. The cooling air passes through the first flow cross-section 31 to the second flow cross-section 32. The inlet chamber 24 limits the flow cross-sections 31 and 32. The air filter component 12 limits the flow cross-sections 31 and 32, in particular all flow cross-sections 31 and 32. The air filter component 12 is directly adjacent to the flow cross-sections 31 and 32. The first flow cross-section 31 is located upstream of the second flow cross-section 32 with respect to the flow path 26. The second flow cross-section 32 is located downstream of the first flow cross-section 31 with respect to the flow path 26. When the cooling air enters the working device 1, the cooling air passes through the first flow cross-section 31 before the second flow cross-section 32.By definition, the flow cross-sections 31, 32 are oriented perpendicular to the longitudinal direction 50 of the working tool 1. The flow cross-sections 31, 32 run perpendicular to the tool plane E. The flow cross-sections 31, 32 extend in planes that run perpendicular to the longitudinal direction 50. The flow cross-sections 31, 32 run at least transversely to the course of the flow path 26. The flow cross-sections 31, 32 become smaller in the direction of the flow path 26. The flow cross-sections 31, 32 become smaller in the longitudinal direction 50. The first flow cross-section 31 is larger than the second flow cross-section 32. The second flow cross-section 32 is smaller than the first flow cross-section 31. The area of the second flow cross-section 32 is smaller than the area of the first flow cross-section 31. The working device 1 is designed such that the area of the flow cross-sections 31, 32 decreases in the direction of the flow path 26, in particular in the longitudinal direction 50.
[0097] In the exemplary embodiments (except for Fig. 2a ) the flow cross-sections 31, 32 become continuously smaller in the direction of the flow path 26, especially in the longitudinal direction 50.
[0098] The entry chamber 24 is bounded at least on one side by an outer wall 10, in particular by an inner side of the outer wall 10 of the working device 1. The outer wall 10 can be an outer wall of the entry chamber 24. In the exemplary embodiments (except for Fig. 2a The entrance chamber 24 is bounded on three sides by the outer wall 10 of the work device 1, as can be seen from the Figuren 2 , 3 and 4 The outer wall 10 of the working device 1 limits the working device 1 in all embodiments (also Fig. 2a ) outwards. In the area of the entrance room 24, the outer wall 10 forms a projection (except for Fig. 2a ). In all embodiments (except for Fig. 2a The outer wall 10 projects beyond the base body 37 of the working tool 1 in the area of the entry chamber 24, particularly in a direction perpendicular to the tool plane E. The outer wall 10 also delimits the base body 37 of the working tool 1. The outer wall 10 is at least partially the outer wall of the base housing 38. As in Fig. 1 As shown, the working device 1 includes the air filter component 12 for filtering the cooling air. The air filter component 12 at least partially limits the inlet chamber 24. The air filter component 12 is used in all embodiments except for... Fig. 2a arranged between the interior of the entrance chamber 24 and the clean air chamber 14. For the embodiment according to the Figuren 1, 2 , 3 and 4 (If you Fig. 1 (as assigned) the air filter component 12 is arranged between the interior of the inlet chamber 24 and the interior space 39 of the base body 37 of the hand-held work device 1. The position of the interior space 39 is in Fig. 4 The interior space 39 is bounded by the base housing 38 of the base body 37. The motor 7 is arranged in the interior space 39. The interior space 39 has a Fig. 1 The opening 41 shown is located in the base housing 38 of the base body 37. The opening 41 completely penetrates one wall of the base housing 38. The opening 41 serves to allow cooling air to enter the interior 39. The interior 39 is bounded by the base housing 38. In the exemplary embodiment according to the Figuren 1, 2 , 3 and 4 (If you Fig. 1 (assigned) the air filter component 12 is arranged in, on or at the opening 41.
[0099] In an alternative version ( Figuren 9 bis 14 It can be provided that the opening 41, in, on, or at which the air filter component 12 is arranged, is a recess in the base housing 38 of the base body 38. In this case, the opening 41 does not completely penetrate the wall of the base housing 38. This embodiment is described in the Figuren 9 bis 14 As shown, the base housing 38 has a wall penetration opening 45. The wall penetration opening 45 completely penetrates one wall of the base housing 38. The wall penetration opening 45 is located in the recess of the base housing 38. Cooling air can be drawn into the interior 39 of the base housing 38 through the wall penetration opening 45. The cooling air is filtered between the air filter component 12 and the wall penetration opening 45. The area along the flow path 26 downstream of the air filter component 12 is referred to as the clean air space 14. The recess in the base housing 38 is part of the clean air space 14, as shown in the Figuren 11 und 12 depicted.
[0100] The recess forms a funnel-shaped boundary for the flow pad 26 in the area between the air filter component 12 and the wall penetration opening 45. After the cooling air has been filtered by the air filter component 12, the effective flow cross-section is reduced along the flow path 26.
[0101] The examples are representative of all embodiments except Fig. 2a in Fig. 2 The depicted inlet opening 4 forms an entrance to the inlet chamber 24. The air filter component 12 forms an outlet of the inlet chamber 24. At the same time, the air filter component 12 forms a side wall of the inlet chamber 24. On the one hand, cooling air flows along the air filter component 12, and on the other hand, cooling air can enter the clean air chamber 14 through the air filter component 12.
[0102] Air from the inlet chamber 24 can enter the interior 39 through the opening 41 of the base housing 38 via the air filter component 12. In the exemplary embodiment according to the Figuren 1, 2 ,3 and 4 (as long as they Fig. 1 (assigned) the cooling air passes through the air filter component 12 directly into the interior 39. In the exemplary embodiment according to the Figuren 9 bis 14 The cooling air passes through the recess between the air filter component 12 and the interior space 39. The air filter component 12 simultaneously forms an outlet of the inlet chamber 24 and limits the inlet chamber 24. In all embodiments except for Fig. 2a The air filter component 12 limits the inlet chamber 24 in a direction perpendicular to the tool plane E.
[0103] The inlet chamber 24 has a volume. This volume is the volume of the inlet chamber 24 that can be filled with cooling air. With respect to the longitudinal direction 50, the volume has a rearmost point. The rearmost point of the volume is the greatest distance, measured in the longitudinal direction 50, to the tool 6. The rearmost point of the volume is the greatest distance, measured in the longitudinal direction 50, to the front end 2 of the working device 1. With respect to the longitudinal direction 50, the volume has a foremost point. The foremost point lies in front of the rearmost point with respect to the longitudinal direction 50. The foremost point lies in front of the rearmost point along the longitudinal direction 50. The foremost point of the volume is the greatest distance, measured in the longitudinal direction 50, to the operating handle 34. The foremost point of the volume is the greatest distance, measured in the longitudinal direction 50, to the rear end 3 of the working device 1.A longitudinal extension 54 of the entrance chamber 24 extends in longitudinal direction 50 from the foremost point of the entrance chamber 24 to the rearmost point of the entrance chamber 24.
[0104] As in Fig. 2 exemplary for all embodiments except Fig. 2a As shown, the opening 41 has a longitudinal extent f. The longitudinal extent f is measured in the longitudinal direction 50. The inlet chamber 24 has a length l measured in the longitudinal direction 50. The inlet chamber 12 extends along the longitudinal direction 50. The length of the longitudinal extent 54 of the inlet chamber 24, measured in the longitudinal direction 50, corresponds to the length l of the inlet chamber 24. The length l is measured from the rearmost point of the inlet chamber 24 to the foremost point of the inlet chamber 24. The air filter component 12 limits the inlet chamber 12 in a direction transverse to its own longitudinal extent. In the exemplary embodiment, the longitudinal extent f of the opening 41 is at least 70%, in particular at least 80%, advantageously at least 85% of the length l of the inlet chamber 24.Cooling air can therefore penetrate from the inlet chamber 24 through the opening 41, and in particular through the air filter component 12, into the clean air chamber 14, and especially into the interior 39 of the base body 37 of the hand-held tool 1, over a very large portion of its longitudinal extent. In a sense, the inlet chamber 24 is open over large parts of its longitudinal extent. The inlet chamber 24 can also be described as semi-open.
[0105] The cooling air flows in the inlet chamber 24 along a filter surface of the air filter component 12. As it flows along the filter surface, the cooling air gradually enters the clean air chamber 14 of the working device 1 through the air filter component 12.
[0106] Entrance chamber 24 can also be described as a flow channel.
[0107] As in Fig. 4 As shown, the inlet chamber 24 has a width a1, a2 measured in the direction perpendicular to the tool plane E, varying in the longitudinal direction 50. The widths a1, a2 are measured between the inside of the outer wall 10 and the air filter component 12. The first width a1 is measured at the inlet opening 4. The first width a1 at the inlet opening 4 corresponds to the maximum width of the inlet chamber 24. In the longitudinal direction 50, the width of the inlet chamber 24 decreases continuously. The second width a2 is measured with respect to the longitudinal direction 50 in the region of the motor 7. The second width a2 is measured downstream of the first width a1 with respect to the flow path 26. The second width a2 is smaller than the first width a1. The first width a1 is associated with the first flow cross-section 31. The second width a2 is associated with the second flow cross-section 32. The first width a1 is the width of the first flow cross-section 31.The second width a2 is the width of the second flow cross-section 32. The inlet chamber 24 is essentially wedge-shaped. In particular, the inlet chamber 24 is essentially wedge-shaped when viewed perpendicular to the longitudinal direction 50 and simultaneously parallel to the tool plane E. In the standby position, the inlet chamber 24 is wedge-shaped when viewed perpendicular to the horizontal plane.
[0108] When cooling air is drawn into the interior of the working device 1 by a blower (not shown), in particular by a blower wheel (not shown), the cooling air emerges in the exemplary embodiments according to the Figuren 1, 2 , 3 , 4 (if Fig. 1 or 9 assigned) and 9 to 14 through the inlet opening 4, in the embodiment according to Fig. 2a and 4 (if Fig. 2a assigned) directly through the air filter component 12 into the working device 1. The cooling air follows the flow path 26. Here, the cooling air flows in the inlet chamber 24 ( Figuren 1, 2 , 3 , 4 (if Figuren 1 and 9 assigned) and 9 to 14 / with the exception of the Fig. 2a ) along the air filter component 12. As the cooling air flows along the air filter component 12, it can exit the inlet chamber 24 through the air filter component 12. In this way, as the cooling air flows along the air filter component 12, more and more air exits the inlet chamber 24 through the air filter component 12 and enters the clean air chamber 14, and in particular the interior space 39, through the opening 41 behind it. This causes the volume of air passing through the flow cross-sections 31, 32 to decrease along the flow path 26, particularly in the longitudinal direction 50, within the inlet chamber 24. Because the flow cross-sections 31, 32 become smaller in the direction of the flow path 26, the volume flow of the cooling air in the inlet chamber 24 can nevertheless be kept approximately constant. This results in uniform flow conditions.
[0109] As in Fig. 3 (and also in the Figuren 2 and 2a ) shown as examples for all embodiments and below for all embodiments (including the one according to Fig. 2a As described above, the base housing 38, in particular the housing 5, has a housing top 20 opposite the base 17. The housing top 20 bounds the base housing 38, in particular the housing 5 of the working tool 1, in an upward direction 49. The upward direction 49 runs perpendicular to the longitudinal direction 50 and simultaneously parallel to the tool plane E. When the working tool 1 is in the parking position on the horizontal plane, the upward direction 49 runs perpendicular to the horizontal plane upwards. The base 17 bounds the base housing 38, in particular the housing 5, in the direction opposite to the upward direction 49. The base housing 38, in particular the housing 5, has a first side surface 21. The first side surface 21 connects the housing top 20 to the base 17. The first side surface 21 is part of the outer wall 10. The first side surface 21 extends in the longitudinal direction 50.The base housing 38, in particular the housing 5 of the working tool 1, has a second side surface 42. The second side surface 42 connects the housing top 20 to the base 17. The second side surface 42 extends in the longitudinal direction 50. The first side surface 21 is opposite the second side surface 42, in particular in a direction perpendicular to the tool plane E. The first side surface 21 delimits the base housing 38, in particular the housing 5, in a direction perpendicular to the tool plane E on the first side 46 of the tool plane E. The second side surface 41 delimits the base housing 38, in particular the housing 5 of the working tool 1, on the second side 47 of the tool plane E. The first side surface 21 extends between the housing top 20 and the base 17. The air filter component 12 is arranged on the first side surface 21 of the base housing 38 of the base body 37 of the hand-held working tool 1.The opening 41 in the base housing 38 is arranged on the first side surface 21 of the base housing 38. The first side surface 21 forms an outer surface of the working device 1, in particular of the housing 5 of the working device 1. The air filter component 12 is arranged on the first side surface 21 in all embodiments. In the embodiment according to... Fig. 2a The air filter component 12 is part of the first side surface 21. The air filter component 12 forms a part of the first side surface 21. In the other embodiments, the air filter component 12 is arranged in the region of the first side surface 21. In these other embodiments, the first side surface 21 covers the air filter component 12. In all embodiments, the air filter component 12 is arranged on the first side 46 of the tool plane E. The air filter component 12 is arranged closer to the first side surface 21 than to the tool plane E with respect to the direction perpendicular to the tool plane E. The distance of the air filter component 12 to the tool plane E, measured in the direction perpendicular to the tool plane E, is at least five times, and in the embodiment at least ten times, as the distance of the filter surface of the air filter component 12 to the first side surface 21, measured in the direction perpendicular to the filter surface of the air filter component 12.
[0110] As in Fig. 2 As an example for all embodiments, the air filter component 12 has a filter outer contour 28 in an imaginary projection in a direction perpendicular to the tool plane E onto the tool plane E. The filter outer contour 28 delimits an imaginary filter surface 29. The filter surface 29 extends in the tool plane E. Fig. 2 The filter area 29 is schematically shown with a dashed line. The filter area 29 is at least 5%, in particular at least 10%, and in the exemplary embodiment at least 15% of the housing area 9. The filter area 29 is at least 100 cm², and in the exemplary embodiment at least 125 cm². The areas are measured in projection onto the tool plane E. These areas are measured in a side view perpendicular to the tool plane E.
[0111] As in Fig. 4 As an example for all embodiments, the air filter component 12 has a filter longitudinal extent 70 in the longitudinal direction 50. The air filter component 12 is arranged between a first imaginary contact plane B1 and a second imaginary contact plane B2. The first contact plane B1 and the second contact plane B2 each run perpendicular to the longitudinal direction 50. The air filter component 12 extends in particular from the first imaginary contact plane B1 to the second imaginary contact plane B2.
[0112] The air filter component 12 has a handle end 51. The handle end 51 of the air filter component 12 faces the operating handle 34. The handle end 51 limits the air filter component 12 in the direction opposite to the longitudinal direction 50. The air filter component 12 has a tool end 52. The tool end 52 of the air filter component 12 faces the tool 6. The tool end 52 limits the air filter component 12 in the longitudinal direction 50. The loop handle 30 is arranged in the area of the tool end 52.
[0113] The first contact plane B1 is tangent to the air filter component 12 at the handle end 51 of the air filter component 1. The second contact plane B2 is tangent to the air filter component 12 at the tool end 52 of the air filter component 12. The filter's longitudinal extent 70, in particular the region of the filter's longitudinal extent 70 of the air filter component 12, extends in the longitudinal direction 50 from the handle end 51 to the tool end 52. In all embodiments, the region of the filter's longitudinal extent 70 is located, with respect to the longitudinal direction 50, between, in particular entirely between, the operating handle 34 and the tool 6. The filter's longitudinal extent 70 extends between, in particular from, the first contact plane B1 to the second contact plane B2. The filter longitudinal extent 70 extends between, in particular from, the first contact plane B1 to the second contact plane B2. The filter longitudinal extent 70 is the entire space between the two contact planes B1 and B2.
[0114] The filter longitudinal extent 70 of the filter component 12 lies, with respect to the longitudinal direction 50, between a rear region 63 of the working device 1 and a front region 64 of the working device 1. The rear region 63 of the working device 1 extends, with respect to the longitudinal direction 50, from the rear end 2 of the working device 1 to the air filter component 12, in particular to the filter longitudinal extent 70 of the air filter component 12, and in particular to the second contact plane B2. The front region 64 of the working device 1 extends, with respect to the longitudinal direction 50, from the air filter component 12, in particular from the filter longitudinal extent 70 of the air filter component 12, and in particular from the first contact plane B1, to the front end 3 of the working device 1. In the exemplary embodiments, the operating handle 34 is arranged in the rear region 63. However, it may also be provided that the operating handle is only partially or not at all located in the rear area 63.This can be the case, for example, with a tree care saw. In the exemplary embodiments, the tool 6 is arranged at least partially, and in particular almost completely, in the front area 64. The air filter component 12, in particular the filter longitudinal extension 70 of the air filter component 12, lies in front of the rear area 63 with respect to the longitudinal direction 50. The air filter component 12, in particular the filter longitudinal extension 70, lies behind the front area 64 with respect to the longitudinal direction 50, in particular behind the first contact plane B1.
[0115] The base housing 38 has a basic longitudinal extent 53 in the longitudinal direction 50. The basic longitudinal extent 53 extends in the longitudinal direction 50 from the rear end 2 of the working tool 1 to an endpoint 73 of the base housing 38. The endpoint 73 limits the base housing 38 in the longitudinal direction 50. At the endpoint 73, an imaginary first plane E1, extending perpendicular to the tool plane E, is tangent to the longitudinal end of the base housing 38 opposite the rear end 2 of the working tool 1. At the rear end 2, an imaginary second plane E2, extending perpendicular to the tool plane E, is tangent to the rear end 2 of the working tool 1. The basic longitudinal extent 53 extends from the second plane E2 associated with the rear end 2 to the first plane E1 associated with the endpoint 73. The space between the first plane E1 and the second plane E2 is called the area of the basic longitudinal extent 53.
[0116] The rear area 63 is the space located between the second touch plane B2 and the second plane E2. The front area 64 is the space located between the first touch plane B1 and the first plane E1.
[0117] A filter length l1 measured in the longitudinal direction 50 of the filter longitudinal extent 70 is at least 20%, in particular at least 30%, of a basic length l2 measured in the longitudinal direction 50 of the basic longitudinal extent 53. The filter length l1 is at most 60%, in particular at most 50%, of the basic length l2.
[0118] The filter longitudinal extension 70 has a rear distance l3, measured in the longitudinal direction 50, of at least 30%, and in particular at least 40%, of the basic length l2 from the starting point of the basic longitudinal extension 53, in particular from the rear end 2. The filter component 12 has a rear distance l3, measured in the longitudinal direction 50, of at least 30%, and in particular at least 40%, of the basic length l2 from the starting point of the basic longitudinal extension 53, in particular from the rear end 2. The filter longitudinal extension 70 has a front distance l4, measured in the longitudinal direction 50, of at least 10%, and in particular at least 15%, of the basic length l2 from the end point of the basic longitudinal extension 53, in particular from the end point 38 of the base housing 38.The air filter component 12 has a front distance l4 of at least 10%, in particular at least 15% of the basic length l2, measured in the longitudinal direction 50, to the end point of the basic longitudinal extension 53, in particular to the end point 73 of the basic housing 38.
[0119] The filter longitudinal extension 70 has a rear distance l3, measured in the longitudinal direction 50, of at most 60%, in particular at most 50%, of the basic length l2, relative to the starting point of the basic longitudinal extension 53, in particular at the rear end 2. The air filter component 12 has a rear distance l3, measured in the longitudinal direction 50, of at most 60%, in particular at most 50%, of the basic length l2, relative to the starting point of the basic longitudinal extension 53, in particular at the rear end 2. The filter longitudinal extension 70 has a front distance l4, measured in the longitudinal direction 50, of at most 40%, in particular at most 20%, of the basic length l2, relative to the end point of the basic longitudinal extension 53, in particular at the end point 73 of the basic housing 38.The air filter component 12 has a front distance l4 of at most 40%, in particular of at most 20% of the basic length l2, measured in the longitudinal direction 50 to the endpoint of the basic longitudinal extension 53, in particular to the endpoint 73 of the basic housing 38.
[0120] The base length l2 corresponds to the distance between the first level E1 and the second level E2. The filter length l1 corresponds to the distance between the first contact plane B1 and the second contact plane B2. The rear distance l3 corresponds to the distance between the second level E2 and the second contact plane B2. The front distance l4 corresponds to the distance between the first contact plane B1 and the first level E1.
[0121] The area of the air filter component 12 extends in the longitudinal direction 50 over the filter longitudinal extent 70.
[0122] Fig. 4 Figure 1 shows an imaginary tangent plane T as an example for all embodiments. The representation in Fig. 4 schematically shows the relationships for all exemplary embodiments. The description of Fig. 4 This applies to all embodiments. Fig. 4 Reference symbols from all embodiments are used. Fig. 4 However, it can optionally be assigned to any of the three exemplary embodiments. If Fig. 4 for the exemplary embodiment according Fig. 1 If it is standing, then the interior space 39 is located directly behind the filter component 12. Fig. 4 for the exemplary embodiment according Fig. 2a If the work tool is in position 1, then it indicates that the tool is in position 1. Fig. 4 no filter cover 13 and no inlet opening 4, but a side inlet opening 62.
[0123] For all embodiments, the tangential plane T runs perpendicular to the horizontal plane in the parking position of the working device 1.
[0124] The tangent plane T is only tangent to the first side surface 21 in the region of the filter's longitudinal extent 70. The tangent plane T is only abutting the first side surface 21 in the region of the filter's longitudinal extent 70, specifically its outer surface. The tangent plane T does not intersect the first side surface 21 in the region of the filter's longitudinal extent 70. The tangent plane T is only tangent to the housing 5 of the working device 1 in the region of the filter's longitudinal extent 70. The tangent plane T is only tangent to the outer surface of the housing 5 of the working device 1 in the region of the filter's longitudinal extent 70. The tangent plane T is only tangent to the outer wall 10 in the region of the filter's longitudinal extent 70.It may be provided that the tangential plane T intersects the working device 1, in particular the first side surface 21, in particular the housing 5, in particular the outer wall 10 in the area outside the filter longitudinal extent 70, in particular in the front area 64 and / or in the rear area 63.
[0125] In the region of the filter's longitudinal extent 70, the tangent plane T is located on the first side 46 of the tool plane E. The tangent plane T is tangent to the first side surface 21 in the region of the filter's longitudinal extent 70 on the first side 46 of the tool plane E.
[0126] The tangent plane T intersects the tool plane E. The tangent plane T intersects the tool plane E in the region with respect to the longitudinal direction 50 in front of the air filter component 12, in particular in the region with respect to the longitudinal direction 50 in front of the filter longitudinal extension 70, especially in the front region 64, and especially in a region with respect to the longitudinal direction 50 in front of the front region 64. Viewed in the longitudinal direction 50, the line of intersection of the tangent plane T and the tool plane E lies in front of the air filter component 12, in particular in front of the filter longitudinal extension 70, and especially in front of the first contact plane B1. In the region with respect to the longitudinal direction 50 behind the air filter component 12, the tangent plane T does not intersect the tool plane E.
[0127] The filter section 54 of the air filter component 12 has a front half 71 and a rear half 72. The front half 71 of the filter section 70 is located in front of the rear half 72 of the filter section 70 with respect to the longitudinal direction 50. The rear half 72 of the filter section 70 is located closer to the operating handle 34 with respect to the longitudinal direction 50 than the front half 71 of the filter section 70. The front half 71 of the filter section 70 is located closer to the tool 6 with respect to the longitudinal direction 50 than the rear half 72 of the filter section 70. The front half 71 faces the tool 6. The rear half 72 faces the operating handle 34. The rear half 72 and the front half 71 are equal in size when measured along the longitudinal direction 50. One half-plane H runs perpendicular to the longitudinal direction 50.The half-plane H divides the space between the first tangent plane B1 and the second tangent plane B2 into two equal halves. With respect to the longitudinal direction 50, the half-plane H lies midway between the first tangent plane B1 and the second tangent plane B2. The rear half 72 lies between the second tangent plane B2 and the half-plane H. The front half 71 lies between the half-plane H and the first tangent plane B1. The region of the rear half 72 corresponds to the space between the second tangent plane B2 and the half-plane H. The region of the front half 71 corresponds to the space between the half-plane H and the first tangent plane B1.
[0128] The tangent plane T is tangent to the first side surface 21 of the working device 1 in the region of the filter's longitudinal extent 70 exclusively in the rear half 72, and in particular exclusively in the region of the rear half 72. In the region of the rear half 72 of the filter's longitudinal extent 70, the tangent plane T merely abuts the first side surface 21, and in particular the outer surface of the first side surface 21. The tangent plane T does not intersect the first side surface 21 in the region of the rear half 72. The tangent plane T touches the housing 5 of the working device 1 in the area of the filter longitudinal extent 70 only in the area of the rear half 72 of the filter longitudinal extent 70. The tangent plane T touches the outside of the housing 5 of the working device 1 in the area of the filter longitudinal extent 70 only in the area of the rear half 72 of the filter longitudinal extent 70.The tangent plane T touches the outer wall 10 in the region of the filter's longitudinal extent 70 only in the region of the rear half 72 of the filter's longitudinal extent 70. The tangent plane T does not intersect the first side surface 21 of the working device 1, in particular the housing 5 of the working device 1, in particular the outer surface of the housing 5 of the working device 1, in particular the outer wall 10, in the region of the front half 71 of the filter's longitudinal extent 70. The tangent plane T does not touch the first side surface 21, in particular the housing 5 of the working device 1, in particular the outer surface of the housing 5 of the working device 1, in particular the outer wall 10, in the region of the front half 71 of the filter's longitudinal extent 70.The tangent plane T is tangent to the first side surface 21 in the area of the entrance chamber 24, in particular in the area of the longitudinal extent 54 of the entrance chamber 24, exclusively in the area of the rear half of the area of the entrance chamber 24 with respect to the longitudinal direction 50.
[0129] It may be provided that the tangential plane T intersects the working device 1, in particular the first side surface 21, in particular the housing 5, in particular the outer wall 10 in the area outside the filter longitudinal extent 70, in particular in the front area 64 and / or in the rear area 63.
[0130] The filter's longitudinal extent 70 divides the entire space into three sections. In a middle section, the filter's longitudinal extent 70 lies between the first contact plane B1 and the second contact plane B2. A rear section adjoins the second contact plane B2. The rear end 2 is located in the rear section. A front section adjoins the first contact plane B1. The front end 3 of the working tool 1 is located in the front section. The tangent plane T intersects the tool plane E in the front section.
[0131] As in Fig. 4 As shown, a plane distance e1, e2, measured perpendicular to the tool plane E, of the tangent plane T to the tool plane E decreases in the longitudinal direction 50. The plane distance e1, e2 is not a distance between planes in the geometric sense, but rather the distance between individual points or lines that lie within the two planes. A first plane distance e1 is measured in the region of the second tangent plane B2. A second plane distance e2 is measured in the region of the handle 27, specifically in the region of the first tangent plane B1. The second plane distance e2 is smaller than the first plane distance e1.
[0132] The tangent plane T forms an angle α with the tool plane E. The angle α is measured within the angular range in which the air filter component 12 is also located. The angle α is at least 1°, and in the exemplary embodiment at least 3°. The angle α is at most 45°, and in the exemplary embodiment at most 20°. The air filter component 12 is arranged completely within a corresponding angular range.
[0133] As in Fig. 4 As shown, the outer surface of the first side surface 21 has an outer surface distance w1, w2 measured perpendicular to the tool plane E. The outer surface distance w1, w2 is not a distance in the geometric sense, but rather the distance of individual points on the outer surface of the first side surface 21 to the tool plane E. The outer surface distance w1, w2 decreases in the longitudinal direction 50 in the area of the air filter component 12, particularly in the area of the inlet chamber 24.
[0134] The area of the entrance chamber 24 is the area in which the entrance chamber 24 extends with respect to the longitudinal direction 50. The longitudinal extent 54 of the entrance chamber 24 extends in the longitudinal direction 50 from the foremost point of the entrance chamber 24 to the rearmost point of the entrance chamber 24. The area of the entrance chamber 24 extends in the longitudinal direction 50 from the foremost point of the entrance chamber 24 to the rearmost point of the entrance chamber 24. The longitudinal extent 54 of the entrance chamber 24 is also referred to as the area of the entrance chamber 24. The area of the entrance chamber 24 has a front half with respect to the longitudinal direction 50 and a rear half with respect to the longitudinal direction 50.
[0135] A first outer distance w1 is measured in the area of the handle end 51 of the air filter component 12, specifically in the area of the second contact plane B1. A second outer distance w2 is measured in the area of the tool end 52, specifically in the area of the first contact plane B1, particularly in the area of the handle 27. The second outer distance w2 is smaller than the first outer distance w1.
[0136] The handle 27 has a handle section 30. The handle section 30 lies above the air filter component 12 in a direction perpendicular to the tool plane E. The handle section 12 lies in the region of the filter's longitudinal extent 70. In all embodiments, the handle section 30 extends substantially, and in particular exactly, in a direction parallel to the tool plane E. In all embodiments, the handle section 30 extends transversely, and in particular perpendicular to the longitudinal direction 50. The handle section 30 is, in particular, completely straight. Advantageously, the handle 27 has virtually no curvature with respect to the upward direction 49 in the region of the handle section 30. The handle section 30 has the shape of a straight tube. The handle section 30 extends approximately parallel to the tool plane E.The outer distance w1, w2 decreases from the handle end 51 of the air filter component 12 in the longitudinal direction 50 towards the bracket section 30, and in particular towards the tool end 52 of the air filter component 12. The outer distance w1, w2 is minimal with respect to the longitudinal direction 50 in the area of the bracket section 30 of the handle 27, and in particular in the area of the tool end 52 of the air filter component 12. In a top view of the work tool 1 in the parked position, perpendicular to the horizontal plane, the work tool 1, and in particular the housing 5 of the work tool 1, is wedge-shaped at least in the area of the air filter component 12, and in particular in the area of the filter's longitudinal extension 70.
[0137] The outer surface of the first side surface 21 has a clearance zone. This clearance zone lies within the filter's longitudinal extent 70, specifically in its front half 71. The clearance zone extends below the bracket section 30 in a direction perpendicular to the tool plane E. The bracket handle 27 has a bracket projection b over the clearance zone in bracket section 30. This bracket projection b is a distance from the bracket section 30, perpendicular to the tool plane E, to the outer surface of the first side surface 21. This is a geometric distance. The bracket projection represents the smallest distance, measured perpendicular to the tool plane E, between bracket section 30 and the clearance zone.The bracket projection b is the distance that the bracket section 30 has in a direction perpendicular to the tool plane E towards the first side surface 21, in particular towards the housing 5 of the working device 1, and especially towards the clearance area. The bracket projection b is also referred to as the bracket spacing.
[0138] The handle 27 has a center of gravity distance s measured perpendicular to the tool plane E from the center of mass 40 of the working tool 1 in the handle section 30. This is also shown in Fig. 4 The bracket projection b is 20% to 60%, in particular 30% to 50%, and in the exemplary embodiment 35% to 45% of the center of gravity distance s. In the exemplary embodiment, the center of gravity distance s is 9 cm to 15 cm, in particular 11 cm to 13 cm. In all exemplary embodiments, the bracket handle 24 has the same center of gravity distance s throughout the entire bracket section 30. In the exemplary embodiments, the bracket handle 24 has the same bracket projection b throughout the entire bracket section 30.
[0139] As in Fig. 3 As shown, the base body 37, in particular the base housing 38, in particular the housing 5, has a total height h measured in a direction perpendicular to the longitudinal direction 50 and in a direction parallel to the tool plane E. The total height h is measured perpendicular to the horizontal plane in the parked position. The working device 1 includes a brake lever 43. The brake lever 43 is pivotably mounted on the base body 37, in particular on the housing 5, in particular on the base housing 38. The brake lever 43 is not part of the base body 37, in particular not of the housing 5, in particular not of the base housing 38. The handle 27 is not part of the base body 37, in particular not of the housing 5, in particular not of the base housing 38. The handle section 30 extends in the same direction as the total height h over a handle section length c. The length of the stirrup section c is from 10% to 60%, in particular from 20% to 50%, in particular from 30% to 40% of the total height h.In the stand position, the bracket section 30 has a distance to the horizontal plane, measured perpendicular to the horizontal plane, of at least 10% of the total height h of the base housing 38. In the stand position, the bracket section 30 has a distance to the horizontal plane, measured perpendicular to the horizontal plane, of at most 40% of the total height h of the base housing 38.
[0140] Over at least 10%, in particular at least 20%, in the exemplary embodiment at least 25% of the total height h, the stirrup section 30 has the same stirrup spacing b, in particular the same center of gravity spacing s.
[0141] As in Fig. 1 As shown, the working device 1 comprises a filter cover 13. In all embodiments except for the embodiment according to Fig. 2a (and Fig. 4 , if they follow the example of implementation Fig. 2a (This concerns) the working device 1 includes the filter cover 13.
[0142] In the exemplary embodiment according to Fig. 2a No filter cover 13 is provided. In the exemplary embodiment, the air filter component 12 forms according to Fig. 2a the first side surface 21, in particular the outside of the first side surface 21. The cooling air strikes the air filter component 12 directly from the outside in a transverse direction, in particular in a direction perpendicular to the tool plane E. The air filter component 12 is part of the outer wall 10, in particular the outside of the outer wall 10.
[0143] In the remaining embodiments, the filter cover 13 is arranged on the base body 37 of the working device 1. The filter cover 13 is designed separately from a base body 37 of the working device 1. The filter cover 13 is attached to the base body 37. The filter cover 13 is arranged on the opening 41 of the base housing 38 of the base body 37. The filter cover 13 at least partially covers the opening 41. This applies to all embodiments except for Fig. 2a In these embodiments, the inlet opening 4 is formed in the filter cover 13. However, it can also be provided that the inlet opening 4 is formed in the base housing 38 of the working device 1. In the embodiments (except for Fig. 2a The lower inlet opening 11 is formed in the filter cover 13. However, it can also be provided that the lower inlet opening 11 is formed in the base housing 38 of the hand-held working device 1. As in the Figuren 3 and 4 and 11 und 12 As shown, the entrance chamber 24 is bounded by the filter cover 13. The filter cover 13 forms part of the first side surface 21, in particular the outside of the first side surface 21. The filter cover 13 forms part of the outer wall 10.
[0144] In the exemplary embodiments (except for Fig. 2a The air filter component 12 is arranged between the base housing 38 and the filter cover 13. The filter cover 13 serves to cover the opening 41 of the base housing 38. The filter cover 13 serves to guide the cooling air. The filter cover 13 serves to hold the air filter component 12 in place.
[0145] For example, in Fig. 2 As shown, the filter cover 13 can be attached to the base housing 38 of the working device 1, in particular by a single fastening element 15. The filter cover 13 can be attached to the base housing 38, in particular by a single, central fastening element 15. As shown in Fig. 2 As shown, the fastening element 15 is arranged in a side view of the working tool 1 in a direction perpendicular to the tool plane E, approximately in the center of the filter cover 13. In this side view, the fastening element 15 is located approximately in the region of the centroid of the filter cover 13. It is also possible for the fastening element 15 to be located precisely at the centroid of the filter cover 13. In the exemplary embodiments (except for...) Fig. 2a The fastening element 15 is a screw. However, the fastening element can also be designed in the form of a rotatable bayonet fitting or in another, alternative manner. The fastening element 15 can be screwed through the filter cover 13 into the base body 37. The screw direction is transverse, in particular perpendicular to the tool plane E.
[0146] The air filter component 12 is (in all embodiments except for the one shown below) Fig. 2a ) between the filter cover 13 and the base housing 38. The air filter component 12 is held with clearance between the filter cover 13 and the base body 37 of the working device 1. The fastening element 15 secures the filter cover 13 to the base body 37 in such a way that a retaining space 57 is formed between the filter cover 13 and the base body 37 ( Figuren 13 und 13a The air filter component 12 is held in the holding chamber 57. The air filter component 12 has clearance in the transverse direction, in particular in the direction perpendicular to the longitudinal direction 50. The air filter component 12 has clearance in the transverse direction, in particular in the direction perpendicular to the tool plane E.
[0147] In the area of the fastening element 15, a first stop area 58 for the air filter component 12 is arranged on the base body 37. In the area of the fastening element 15, a second stop area 59 for the air filter component 12 is arranged on the filter cover 13. The air filter component 12 is held with play in the direction from the first stop area 58 to the second stop area 59 between the first stop area 58 and the second stop area 59. The holding space 57 is formed between the first stop area 58 and the second stop area 59. In the exemplary embodiment, the first stop area 58 is opposite the second stop area 59 in a transverse direction, in particular in a direction perpendicular to the tool plane E. The air filter component 12 is held with play with respect to the transverse direction, in particular perpendicular to the tool plane E, between the first stop area 58 and the second stop area 59.The first stop area 58 and the second stop area 59 are arranged at a distance d from each other, measured in a transverse direction, in particular perpendicular to the tool plane E. The holding space 57 has a height that corresponds approximately to the distance d. The air filter component 12 extends in the area of the fastening element 15 in a transverse direction, in particular perpendicular to the tool plane E, over at least 80%, and in the exemplary embodiment over at least 90%, of the distance d. The air filter component 12 extends in the area of the fastening element 15 in a transverse direction, in particular perpendicular to the tool plane E, over a maximum of 98%, and in the exemplary embodiment over a maximum of 95%, of the distance d.
[0148] As in Fig. 13 and in Fig. 13a As shown, the air filter component 12 rests against the base body 38 (not in the embodiment shown). Fig. 2a The air filter component 12 has a mounting groove 60 that extends around a direction perpendicular to the tool plane E. The base body 38 has an end wall 61 that extends around a direction perpendicular to the tool plane E. The end wall 61 has an outer, an inner, and an end face. The mounting groove 60 has groove side walls. The air filter component 12 is mounted onto the end wall 61 via the mounting groove 60. The mounting groove 60 engages the end wall 61. The end wall 61 corresponds to the mounting groove 60. The side walls of the mounting groove 60 abut the outer and inner faces of the end wall 61. There is a gap between the end face of the end wall 61 and the base of the mounting groove 60. This allows the air filter component 12 to be manufactured with a large production tolerance. This allows the filter cover 13 to fit snugly against the base housing 38 like a hood, since the filter cover 13 can be easily pressed against the base body 37.Here, the groove base and the end face can move closer together without touching. Due to the groove side walls being in contact with the outer and inner sides of the end face 61, the air filter component 12 is airtightly connected to the base body 37. There is clearance between the end face 61 and the mounting groove 60 in the transverse direction, particularly perpendicular to the tool plane E.
[0149] The entrance room 24 is located on the first side surface 21 (except for Fig. 2a The inlet opening 4 is located in the first side surface 21 of the working device 1. The filter cover 13 is part of the first side surface 21 of the working device 1. As shown in Fig. 4 As shown, the filter cover 13 in the parking position of the working device 1 in view perpendicular to the horizontal plane, in particular in view perpendicular to the ground 17, is essentially wedge-shaped.
[0150] In the exemplary embodiments (except for Fig. 2a The inlet chamber 24 is at least partially bounded by the filter cover 13. The inlet chamber 24 is formed between the filter cover 13 and the air filter component 12. The filter cover 13 is essentially hood-shaped. At its end facing the rear end 3 of the working device 1, the filter cover 13 has the inlet opening 4. On the side of the filter cover 13 facing the opening 41, the filter cover 13 has a contact surface for contact with the base housing 38 of the main body 37 of the hand-held working device 1. In particular, the contact surface rests against the base housing 38. Advantageously, the contact surface of the filter cover 13 extends completely around the opening 41. The contact surface lies close to the base housing 38. The inlet opening 4 penetrates the filter cover 13 completely. The inlet opening 4 is bounded on all sides by material of the filter cover 13.
[0151] The filter cover 13 forms the outer boundary of the working tool 1. The filter cover 13 is part of the housing 5. The filter cover 13 has a lid that forms part of the outer first side surface 21 of the working tool 1. The lid defines the filter cover 13 in a transverse direction, particularly in a direction perpendicular to the tool plane E. The lid is free of openings for the ingress of cooling air into the working tool 1. The filter cover 13 has side walls. The side walls and the lid define the inlet chamber 24. The inlet opening 4 is located in a side wall of the filter cover 13. The lid of the filter cover 13 is supported by the side walls against the base housing 38.
[0152] The filter cover 13, in side view, has a perpendicular angle to the first side 46 of the tool plane E. Fig. 2 The outer contour of the lid shown is 18. In the Figuren 1 und 2 The outer contour of the filter 28, the filter surface 29, the outer contour of the cover 18, a cover surface 19, the inlet chamber 24, and the opening 41 are schematically depicted with the same dashed line. In reality, however, the outer contour of the cover 18 is larger than the outer contour of the filter 28. The outer contour of the cover 18 completely encloses the inlet chamber 24. The outer contour of the cover 18 completely encloses the opening 41 of the base housing 38. When projected onto the tool plane E in a direction perpendicular to the tool plane E, the outer contour 18 of the cover defines an imaginary cover surface 19 within the tool plane E. In a side view, the filter cover 13 is free of openings for the entry of cooling air into the working device 1 within the outer contour 18 over at least 85%, in particular over at least 90%, and in the exemplary embodiment over at least 95% of the cover surface 19.An imaginary projection of the filter cover 13 in a direction perpendicular to the tool plane E onto the tool plane E is, within the outer contour of the cover 18 projected onto the tool plane E in the same manner, free of openings for the ingress of cooling air into the working tool 1 over at least 85%, in particular over at least 90%, and in the exemplary embodiment over at least 95% of the cover surface 19. The term "opening" is also to be understood in connection with the filter cover 13 as defined above. This refers to the portion of a penetration opening that is visible in a view perpendicular to the first side 46 of the tool plane E.
[0153] In all embodiments, a battery pack (not shown) is provided to supply power to the motor 7, which is designed as an electric motor. The handheld tool 1 is a battery-powered tool. It is also possible to use a battery, in particular a replaceable battery, for power. The following description of the battery pack also applies to a battery. As, for example, in the Figuren 2 and 4 As shown, the housing 5, in particular the base housing 38, has a receiving slot 22 for the battery pack. The receiving slot 22 has a receiving opening 23. The battery pack can be inserted into the receiving slot 22 through the receiving opening 23. The battery pack can be inserted into the receiving slot 22 in an insertion direction 48.
[0154] As from the Figuren 2 bis 4 As can be seen, the first side surface 21 is free of the receiving opening 23 of the receiving slot 22 for the battery pack. The receiving opening 23 of the receiving slot 22 for the battery pack extends exclusively into the housing top 20 of the housing 5, in particular the base housing 38. The insertion direction 48 runs parallel to the tool plane E. The receiving opening 23 is continuous around the insertion direction 48. The receiving opening 23 has a continuous rim around the insertion direction 48. When the battery pack is inserted into the receiving slot 22, it is essentially inserted downwards through the receiving opening 23 into the receiving slot 22, in the opposite direction to the upward direction 49.
[0155] The receiving shaft 22 is arranged with respect to the longitudinal direction 50 in the area of the filter longitudinal extent 70, in particular in the area of the rear half 72 of the filter longitudinal extent 70, as exemplified for all embodiments in Fig. 4 depicted.
[0156] An imaginary projection of the air filter component 12 in a direction perpendicular to the tool plane E onto the tool plane E and an imaginary projection of the receiving shaft 22 in a direction perpendicular to the tool plane E onto the tool plane E overlap in the tool plane E. As in Fig. 2 As an example for all embodiments, the receiving shaft 22 has a battery outer contour 65 in an imaginary projection in a direction perpendicular to the tool plane E onto the tool plane E. The battery outer contour 65 delimits an imaginary battery surface 66. The battery surface 66 extends in the tool plane E. Fig. 2 The battery area 66 is schematically shown with a dashed line. The filter area 29 and the battery area 66 overlap in the tool plane E.
[0157] As in Fig. 4 As an example for all embodiments, the receiving shaft 22 has a depth t1 measured in the longitudinal direction 50 and a width t2 measured perpendicular to the tool plane E. The width t2 is greater than the depth t1. The base body 37 has a maximum width bm measured in the direction perpendicular to the tool plane E. The width t2 of the receiving shaft 22 is at least 50%, and in particular at least 60%, of the maximum width bm of the base body 37 of the working device 1. The base body 37 of the working device 1 has its maximum width bm in the rear half 72 of the filter longitudinal extent 70 of the air filter component 12.
[0158] The intake shaft 22 is located in the area of the rear half 72 of the filter longitudinal extension 70. The intake shaft 22 is located in the area of the rear half of the inlet chamber 24 with respect to the longitudinal direction 50.
[0159] The position of the center of mass 40 of the working device 1 is determined with the battery inserted. The position of the center of mass 40 of the working device 1 is determined with the battery inserted into the battery compartment 22.
[0160] Cooling air is drawn into the working device 1 by a blower (not shown in the figures) and guided along the flow path 26. The flow path 26 is shown in the Figuren 1 , 3 and 4 The diagram is shown schematically with dashed lines. The cooling air enters the working device 1 through the inlet opening 4 (in all embodiments except the one shown below). Fig. 2a ). In the exemplary embodiment according to Fig. 2a (and Fig. 4 , if they are on Fig. 2a (referring to the air intake), the cooling air initially enters the working device 1 through the air filter component 12. Subsequently, the cooling air passes through the side inlet opening 62 into the clean air area 14.
[0161] In the remaining embodiments (except for Fig. 2aThe cooling air flows through the inlet opening 4 in the longitudinal direction 50. Through the inlet opening 4, the cooling air enters directly into the inlet chamber 24, which is formed by the filter cover 13 and the air filter component 12. In the inlet chamber 24, the cooling air flows along the air filter component 12, in particular along the filter surface, from the rear end 3 to the front end 2. In doing so, the cooling air passes through the air filter component 12 and through the opening 41 in the base housing 38 of the main body 37 into the clean air chamber 14. As it flows along the air filter component 12, the volume of the cooling air in the inlet chamber 24 decreases along the longitudinal direction 50, since more and more cooling air exits the inlet chamber 24 through the air filter component 12 into the clean air chamber 14. The area of the flow cross-sections 31, 32 also decreases to the same extent in the longitudinal direction 50.This allows the volume flow in the inlet chamber 24 to be kept essentially constant. This ensures favorable flow conditions. The cooling air can distribute itself evenly over the air filter component 12, particularly over the filter surface, and penetrate the clean air chamber 14 with a similar volume flow across the entire surface of the air filter component 12. The cooling air flows into the clean air chamber 14 in a direction transverse to the tool plane E. In the clean air chamber 14, the cooling air flows in a direction transverse to the longitudinal direction 50. Within the clean air chamber 14 and the interior 39, the cooling air then flows along the flow path 26 in the upward direction 49 towards the electronics of the motor 7, which is designed as an electric motor. Here, the electronics of the electric motor are cooled. The cooling air then flows against the upward direction 49 towards the motor 7, which is designed as an electric motor. The cooling air exits the working tool 1 through an opening in the base 17.
[0162] Due to the wedge-shaped design of the base body 37, the handle 27, in particular the handle section 30 of the handle 27, can be arranged in a space-saving manner and at a small distance from the center of mass 40 of the working device 1. This results in low lever and pivot forces for guiding and operating the working device 1 by means of the handle 27.
Claims
1. Hand-held implement having a tool (6) and having an operating handle (34), wherein the implement (1) comprises a motor (7) for driving the tool (6), wherein a longitudinal direction (50) extends in the direction from the operating handle (34) to the tool (6), wherein the tool (6) has a tool plane (E), wherein the implement (1) comprises an air-filter component (12) for filtering cooling air for cooling the motor (7), wherein the implement (1) can be set down in a set-down position on a horizontal plane, wherein the implement (1) has a base (17) which, in the set-down position, faces towards the horizontal plane, wherein the implement (1) has a housing cover (20) which is situated opposite the base (17), wherein the implement (1) has a side surface (21) which connects the housing cover (20) and the base (17) to one another and which delimits the implement (1) in a direction perpendicular to the tool plane (E) along the longitudinal direction (50), wherein the air-filter component (12) is arranged on the side surface (21) of the implement (1), wherein the air-filter component (12) has a filter longitudinal extent (70) in the longitudinal direction (50), wherein an imaginary tangential plane (T) which, in the set-down position, extends perpendicularly to the horizontal plane is tangential to the side surface (21) in the region of the filter longitudinal extent (70) only, characterized in that the tangent plane (T) intersects the tool plane (E), wherein the filter longitudinal extent (70) has a front half (71) and a rear half (72) in relation to the longitudinal direction (50), wherein the front half (71) is arranged in front of the rear half (72) in relation to the longitudinal direction (50), wherein the tangential plane (T) is tangential to the side surface (21) of the implement (12) in the region of the rear half (72) of the filter longitudinal extent (70) of the air-filter component (1), wherein the tangential plane (T) intersects the tool plane (E) in front of the region of the filter longitudinal extent (70) in relation to the longitudinal direction (50), - wherein the implement (1) has a receiving well (22) for a rechargeable-battery pack able to be pushed into the receiving well (22) through a receiving opening (23) of the receiving well (22) in a push-in direction (48), which receiving well is arranged in the region of the filter longitudinal extent (70) in relation to the longitudinal direction (50), or - wherein the implement (1) comprises a bow handle (27) with a bow portion (30) which is situated in the region of the filter longitudinal extent (70) and above the side surface (21) in the direction perpendicular to the tool plane (E).
2. Hand-held implement according to Claim 1, characterized in that the tangent plane (T) includes an angle (α) of at least 1°, in particular of at least 3°, with the tool plane (E), and / or in that the tangent plane (T) includes an angle (α) of at most 45°, in particular of at most 20°, with the tool plane (E).
3. Hand-held implement according to Claim 1 or 2, characterized in that an outer-side spacing (w1, w2), measured perpendicularly to the tool plane (E), of the outer side of the side surface (21) to the tool plane (E) in the region of the filter longitudinal extent (70) of the air-filter component (12) decreases, in particular decreases substantially continuously, in the longitudinal direction (50).
4. Hand-held implement according to Claim 3, characterized in that the outer-side spacing (w1, w2) is minimal in the region of the bow portion (30) of the bow handle (27) in relation to the longitudinal direction (50).
5. Hand-held implement according to Claim 4, characterized in that the outer side of the side surface (21) has a spacing region which is situated below the bow portion (30) in the direction perpendicular to the tool plane (E), in that, in the bow portion (30), the bow handle (27) has a bow projection (b), measured perpendicularly to the tool plane (E), over the spacing region, in that, in the bow portion (30), the bow handle (27) has a centre-of-mass spacing (s), measured perpendicularly to the tool plane (E), to the centre of mass (40) of the implement (1), and in that the bow projection (b) is from 20% to 60%, in particular from 30% to 50%, preferably from 35% to 45%, of the centre-of-mass spacing (s), in particular in that centre-of-mass spacing (s) is from 9 cm to 15 cm, in particular from 11 cm to 13 cm.
6. Hand-held implement according to one of Claims 1 to 5, characterized in that the implement (1) comprises an entry space (24) for entry into the implement (1) of cooling air to be filtered by the air-filter component (12), in that the entry space (24) is delimited by the side surface (21), in that the entry space (24) has an entry opening (4) through which cooling air can flow from the outside into the entry space (24) in the longitudinal direction (50), and in particular in that the entry space (24) is delimited by the air-filter component (12).
7. Hand-held implement according to Claim 6, characterized in that the implement (1) has a filter cover (13), and in that the entry space (24) is delimited by the filter cover (13), in particular in that the entry opening (4) is formed in the filter cover (13), and in particular in that the filter cover (13) forms a part of the side surface (21).
8. Hand-held implement according to Claim 7, characterized in that the filter cover (13) is substantially wedge-shaped in the set-down position in a view perpendicular to the horizontal plane.
9. Hand-held implement according to Claim 7 or 8, characterized in that the filter cover (13) and / or the air-filter component (12) are / is fastenable to the main body (37) by a single, in particular central, fastening element (15).
10. Hand-held implement according to one of Claims 1 to 9, characterized in that the receiving well (22) is arranged in the region of the rear half (72) of the filter longitudinal extent (70) in relation to the longitudinal direction (50), and in particular in that an imaginary projection of the air-filter component (12) onto the tool plane (E) in a direction perpendicular to the tool plane (E) and an imaginary projection of the receiving well (22) onto the tool plane (E) in a direction perpendicular to the tool plane (E) overlap in the tool plane (E).
11. Hand-held implement according to one of Claims 1 to 10, characterized in that the receiving well (22) has a depth (t1) measured in the longitudinal direction (50) and has a width (t2) measured perpendicularly to the tool plane (E), and in that the width (t2) is greater than the depth (t1), in particular in that the width (t2) is at least 50% of a maximum width (bm), measured in a direction perpendicular to the tool plane (E), of the main body (37) of the implement (1).
12. Hand-held implement having a tool (6) and having an operating handle (34), wherein the implement (1) comprises a motor (7) for driving the tool (6), wherein a longitudinal direction (50) extends in the direction from the operating handle (34) to the tool (6), wherein the implement (1) comprises an air-filter component (12) and an entry space (24) for entry into the implement (1) of cooling air to be filtered by the air-filter component (12), wherein the entry space (24) has at least one entry opening (4) for entry of cooling air from the outside into the implement (1), wherein the air-filter component (12) delimits the entry space (24), wherein the entry space (24) delimits a portion (25) of a flow path (26) for cooling air, wherein the flow path (26) leads from the entry opening (4) to the motor (7), and wherein, along the flow path (26), the entry space (24) has flow cross sections (31, 32) for the cooling air that extend perpendicularly to the longitudinal direction (50), characterized in that the entry opening (4) is arranged in such a way that cooling air can flow through the entry opening (4) in the longitudinal direction (50), in that the air-filter component (12) delimits the flow cross-sections (31, 32), and in that the flow cross-sections (31, 32) become smaller, in particular become smaller continuously, in the longitudinal direction (50) of the implement (1).
13. Hand-held implement according to Claim 12, characterized in that the cooling air flows in the entry space (24) along a filter surface of the air-filter component (12), in particular in that the cooling air gradually enters a clean-air space (14) of the implement (1) through the air-filter component (12) while flowing along the filter surface, and in particular in that the entry space (24) is delimited at least on one side by an outer wall (10) of the implement (1), in particular in that the flow cross sections (31, 32) are delimited by the outer wall (10) of the implement (1).
14. Hand-held implement according to Claim 12 or 13, characterized in that the implement (1) has a base (17) which, in the set-down position, faces towards the horizontal plane, in that the implement (1) has a housing cover (20) which is situated opposite the base (17), in that the implement (1) has a side surface (21) which connects the housing cover (20) and the base (17) to one another and which delimits the implement (1) in a direction perpendicular to the tool plane (E) along the longitudinal direction (50), and in that the entry space (24), in particular the entry opening (4), is arranged on the side surface (21) of the implement (1).