Hand-held work tool

By setting air filter members on the side of the handheld working instrument and optimizing the cooling air flow path, the bulky and dirt entry problems caused by the cooling air entry opening in the prior art are solved, and a compact design and efficient cooling effect are achieved.

CN119283132APending Publication Date: 2025-01-10ANDREAS STIHL AG & CO KG
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202410913482.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-07-10
Filing Date
2024-07-09
Publication Date
2025-01-10

AI Technical Summary

Technical Problem

The existing handheld working instruments are bulky and not compact due to the design of the cooling air entry opening, and dirt is easy to enter the motor chain saw, affecting the user experience and cooling effect.

Method used

By providing an air filter member on the side of the working instrument and optimizing the flow path of the cooling air, the air filter member extends in the longitudinal direction, limiting the size of the flow cross-section, reducing the possibility of dirt entering, and designing an arcuate handle to Improve ergonomics and compactness.

Benefits of technology

The compact design of the working equipment is realized, reducing the possibility of dirt entering, improving the cooling effect and user experience, and reducing the impact of gravity on the user.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119283132A_ABST
    Figure CN119283132A_ABST
Patent Text Reader

Abstract

The invention relates to a hand-held tool having a tool and an operating handle. The work tool includes a motor. The longitudinal direction extends in a direction from the operating handle to the tool. The tool has a tool plane. The work implement includes an air filter member. The work implement can be placed on a horizontal plane in the placement position. The invention relates to a tool having a base which faces a horizontal plane in a placement position, the tool having a housing cover, the tool having a side which connects the housing cover to the base and limits the tool in a longitudinal direction in a direction perpendicular to a tool plane. The air filter member is arranged at the side of the work implement and has a filter longitudinal extension in the longitudinal direction with a front half which is arranged in front of a rear half with respect to the longitudinal direction. The tangential plane is tangent to the side in the region of the rear half. The tangential plane intersects the tool plane with respect to the longitudinal direction before a region of the filter extending longitudinally.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to a handheld working tool. Background Art

[0002] A motor chain saw is known from DE 20 2019 104 914 U1, in which an inlet opening for cooling air is provided on the side. The side extends approximately parallel to the tool plane in which the saw chain (not shown) is wrapped. In order to have enough space for the user's hands between the bow handle and the air filter, the bow handle must be designed to be convex. As a result, the working tool is heavy and not light. In particular, when cutting wood, the inlet opening is oriented upwards, so that dirt can enter the interior of the motor chain saw through the inlet opening under the action of gravity. Summary of the invention

[0003] The object of the present invention is to improve a work tool of the generic type in such a way that the work tool is compact and ergonomically designed.

[0004] The object is achieved by a hand-held work tool with a tool and an operating handle, wherein the work tool comprises a motor for driving the tool, wherein a longitudinal direction extends in the direction from the operating handle to the tool, wherein the tool has a tool plane, wherein the work tool comprises an air filter component for filtering cooling air for cooling the motor, wherein the work tool can be placed on a horizontal plane in a placement position, wherein the work tool has a bottom, which faces the horizontal plane in the placement position, wherein the work tool has a housing cover arranged opposite the bottom, wherein the work tool has a side surface which connects the housing cover and the bottom to each other and limits the housing cover in the longitudinal direction in a direction perpendicular to the tool plane. A work tool, wherein an air filter component is arranged at a side of the work tool, wherein the air filter component has a filter longitudinal extension in the longitudinal direction, wherein an imaginary tangential plane extending perpendicularly to a horizontal plane in the placement position is tangential to the side only in the region of the filter longitudinal extension, wherein the tangential plane intersects with a tool plane, wherein the filter longitudinal extension has a front half and a rear half with respect to the longitudinal direction, wherein the front half is arranged before the rear half with respect to the longitudinal direction, wherein the tangential plane is tangential to the side of the work tool in the region of the rear half of the filter longitudinal extension of the air filter component, and the tangential plane intersects with the tool plane before the region of the filter longitudinal extension with respect to the longitudinal direction.

[0005] Furthermore, the object of the present invention is to develop a power tool of the generic type in such a way that the penetration of dirt into the power tool is reduced while simultaneously achieving good cooling of the power tool.

[0006] This object is achieved by a hand-held work tool having a tool and an operating handle, wherein the work tool comprises a motor for driving the tool, wherein a longitudinal direction extends in the direction from the operating handle to the tool, wherein the work tool comprises an air filter component and an inlet space for cooling air to be filtered by the air filter component to enter the work tool, wherein the inlet space has at least one inlet opening for cooling air to enter the work tool from the outside, wherein the air filter component limits the inlet space, wherein the inlet space limits a section of a flow path for cooling air, wherein the flow path leads from the inlet opening to the motor, wherein the inlet space has a flow cross section for cooling air along the flow path extending perpendicularly to the longitudinal direction, wherein the inlet opening is arranged such that cooling air can flow through the inlet opening in the longitudinal direction, wherein the air filter component limits the flow cross section, and wherein the flow cross section decreases in the longitudinal direction of the work tool.

[0007] According to the present invention, the air filter component is arranged on the side of the work tool. The air filter component has a filter longitudinal extension in the longitudinal direction, and the air filter component extends on the filter longitudinal extension. In particular, the area where the filter extends longitudinally is limited by the rear plane about the longitudinal direction and the front plane about the filter longitudinal extension. In the placement position of the work tool, the imaginary tangent plane extends perpendicular to the horizontal plane. In the placement position, the tangent plane is only tangent to the side of the work tool, especially the outside of the side, in the area where the filter extends longitudinally. Accordingly, the tangent plane does not intersect with the side of the work tool in the area where the filter extends longitudinally. But the tangent plane can intersect with other areas of the work tool, especially other areas of the side.

[0008] The filter extends longitudinally and has a front half and a rear half in the longitudinal direction. The front half is arranged before the rear half in the longitudinal direction. In particular, the front half is further away from the operating handle than the rear half in the longitudinal direction.

[0009] According to the invention, the tangential plane is tangential to the side in the region of the rear half. In particular, the tangential plane is not tangential to the side in the region of the front half of the longitudinal extension of the filter. The tangential plane intersects the tool plane before the region of the longitudinal extension of the filter, in particular before the filter element, in relation to the longitudinal direction. In particular, the tool is surrounded in the tool plane. In particular, the tool plane and the tangential plane converge when viewed from the operating handle in the direction of the tool.

[0010] By the embodiment of the work tool according to the present invention, a compact and ergonomic design of the work tool is achieved. Since the access space does not protrude beyond the tangential plane extending at an acute angle to the tool plane, there is a structural space for other components of the work tool in the region of the access space on the other side of the tangential plane. For example, a bow handle can be arranged there. The air filter component can be arranged laterally and bridged by the bow handle, and the work tool can still be compact and ergonomically designed. In the region of the rear half of the longitudinal extension of the filter, a structural space is provided in the interior of the matrix of the work tool. Here, for example, a battery well for a battery pack can be arranged.

[0011] Advantageously, the tangential plane and the tool plane enclose an angle of at least 1°, in particular at least 3°. In particular, the air filter component is arranged within the range of this angle. Suitably, the tangential plane and the tool plane enclose an angle of maximum 45°, in particular maximum 20°. The tangential plane and the tool plane limit the angle range within which the air filter component is arranged. The air filter component does not protrude from this angle range. In particular, in the area where the filter extends longitudinally, the side does not protrude from this angle area. Thus, a compact design of the work tool is achieved.

[0012] Advantageously, the outer side spacing of the side from the tool plane in the area where the filter of the air filter member extends longitudinally is reduced in the longitudinal direction. The outer side spacing is measured perpendicular to the tool plane. The outer side spacing is the distance of the outer side of the side from the tool plane in the area where the filter of the air filter member extends longitudinally. In particular, the outer side spacing changes along the longitudinal direction. Accordingly, the outer side spacing is not a spacing in the geometric sense, but a locally varying size. In particular, the outer side spacing is substantially continuously reduced in the longitudinal direction.

[0013] Suitably, the work tool comprises an arched handle. The arched handle has an arched section, which is located in the region of the longitudinal extension of the filter and is located above the side in a direction perpendicular to the tool plane. In particular, the arched section is located on the first side of the tool plane. The air filter component is also located on the first side of the tool plane. In particular, the arched section extends in a direction transverse to the direction extending perpendicular to the tool plane. In particular, the longitudinal direction of the arched section extends in a direction parallel to the tool plane.

[0014] Suitably, the outer spacing is smallest in the region of the arcuate section of the arcuate handle with respect to the longitudinal direction. Thus, sufficient space can be provided in the region of the arcuate section with respect to the longitudinal direction for the user to grip the arcuate handle. At the same time, the arcuate handle can be arranged in a space-saving manner. The small outer spacing in the region of the arcuate section enables the arrangement of the arcuate handle, in particular the arcuate section, so that the work tool is compact and ergonomically designed. As a result, the weight for the user can be reduced to a small extent, thereby improving the ergonomics of the work tool, in particular the motor saw.

[0015] The outer side of the side has a spacing area. The spacing area is located below the arched section in a direction perpendicular to the tool plane. In particular, the arched handle has an arched protrusion in the arched section that exceeds the spacing area measured perpendicular to the tool plane. The arched section of the arched handle protrudes beyond the outer side of the side below the arched section perpendicular to the tool plane with the arched protrusion in the area of ​​the side. This area of ​​the side is the spacing area. The arched protrusion is also called the arched spacing. In particular, the arched protrusion is a geometric spacing, that is, it describes the length of the shortest "spacing line" extending in a direction perpendicular to the tool plane. The arched spacing is measured perpendicular to the tool plane. The arched spacing corresponds to the distance of the arched section of the arched handle from the outer side of the side of the work tool measured perpendicular to the tool plane, especially from the area of ​​the outer side of the side below the arched section perpendicular to the tool plane, especially from the spacing area.

[0016] The bow handle has a center of gravity distance from the center of mass of the work tool measured perpendicular to the tool plane in the bow section. This center of gravity distance is also a distance in a geometric sense. Advantageously, the bow-shaped overhang is 20% to 60%, especially 30% to 50%, preferably 35% to 45% of the center of gravity distance. Thus, the bow handle, especially the bow section of the bow handle, can be arranged near the center of mass of the work tool. Since the outer spacing is smaller, especially the smallest, in the region of the bow section with respect to the longitudinal direction, the gripping of the bow handle in the bow section is also achieved when the ratio of the bow overhang to the center of gravity distance is small. This simultaneously achieves a compact design of the work tool and an ergonomic hand-holding and hand-carrying of the handheld work tool by means of the bow handle. Since the bow handle is located near the center of mass, the lever force for hand-holding and hand-carrying the work tool by means of the bow handle is small. In particular, the center of gravity distance is 9cm to 15cm, preferably 11cm to 13cm. It can also be arranged that the distance between the centers of gravity is 8 cm to 12 cm, in particular 9 cm to 11 cm.

[0017] In an advantageous improvement of the present invention, the work tool comprises an inlet space for cooling air to be filtered by an air filter member to enter the work tool. However, a design of a work tool without an inlet space can also be provided. Suitably, the inlet space is limited by the side, in particular by the inner side of the side. In particular, with respect to the longitudinal direction, the inlet space also extends at least in the region of the longitudinal extension of the filter. Suitably, the tangential plane is tangent to the side in the region of the lateral restricted inlet space in the region of the rear half of the longitudinal extension of the filter. In particular, the tangential plane is tangent to the outer side of the region of the side whose inner side directly limits the inlet space. Advantageously, the inlet space has an inlet opening through which cooling air can flow into the inlet space from the outside in the longitudinal direction.

[0018] Since the cooling air flows through the inlet opening in the longitudinal direction, the work tool can be designed so that in the direction perpendicular to the tool plane of the work tool, there is only a small degree or no opening for cooling air to enter the work tool directly from the outside. In particular, the inlet opening can be designed so that the inlet opening is mainly open in the direction opposite to the longitudinal direction. Suitably, the portion of the inlet opening surface visible in the side view perpendicular to the tool plane of the work tool can be designed to be very small. Thus, only very few cutting objects of the tool can be forward to the inlet opening and enter the work tool. The tool is especially arranged at the front end of the handheld work tool in the longitudinal direction. Since the inlet opening is open to the rear end of the work tool about the longitudinal direction, the dirt input generated by the tool during the use of the handheld work tool through the inlet opening for cooling air into the work tool is small. In particular, in the case of felling and cutting, only a small amount of dirt particles acting on it by gravity can enter the work tool through the inlet opening for cooling air. In this way, the entry of dirt through the inlet opening for cooling air is very small.

[0019] In an advantageous improvement of the present invention, the work tool has a filter cover. However, a design of the work tool without a filter cover can also be provided. In particular, the inlet opening for cooling air is constructed in the filter cover. Thus, a simple manufacture of the inlet opening is achieved. In particular, the filter cover can cover the opening in which, on or at which the filter of the work tool is arranged in a portion without an inlet opening. Advantageously, the filter cover forms a part of the outer wall. Suitably, the filter cover forms a part of the side, in particular in the area of ​​the longitudinal extension of the filter. Suitably, the tangential plane is tangent to the side in the area of ​​the side formed by the filter cover in the area of ​​the rear half of the longitudinal extension of the filter. In particular, the tangential plane is tangent to the filter cover, in particular to the outside of the filter cover, in the area of ​​the rear half of the longitudinal extension of the filter of the air filter component.

[0020] Advantageously, the access opening, in particular the opening of the interior of the work tool, is arranged at the side of the work tool. As a result, the access opening can be approached in a simple manner. As a result, the area of ​​the access opening, in particular the air filter, can be designed to be larger. The side of the work tool provides sufficient space for this.

[0021] Advantageously, in the placed position, the filter cover is substantially wedge-shaped in a view perpendicular to the horizontal plane.

[0022] Suitably, the filter cover is used to support the air filter component. In particular, the filter cover at least partially, advantageously completely covers the air filter component in a side view in a direction perpendicular to the first side of the tool plane. Suitably, the air filter component is maintained between the filter cover and the matrix of the work tool.

[0023] In particular, the air filter element is held with a gap between the filter cover and the base body of the work tool. This allows the work tool to be manufactured simply. The filter cover can be pressed against the base body and abut against the base body without having to take the air filter element into account for this, even if there are manufacturing tolerances. Since the filter cover can be pressed against the base body, low requirements can be made on the manufacturing tolerances regarding the relative position of the base body and the filter cover, and the filter cover can still abut against the base body reliably and tightly.

[0024] Suitably, the filter cover and / or the air filter component can be fastened to the substrate by a single fastening element. Thus, the filter cover and / or the air filter component can be placed against the substrate in a sealed, especially airtight manner. In particular, the single fastening element is a central fastening element. Advantageously, the fastening element can be fastened approximately in the center of the filter cover, especially in the center of the surface of the plane associated with the outer contour of the filter, in a side view perpendicular to the tool plane, especially the first side of the tool plane. Since the filter cover and / or the air filter component can be fastened by a single fastening element, the filter cover and / or the air filter component can be assembled and disassembled in a simple and convenient manner. The air filter component can be disassembled very quickly and can be approached in a simple manner (for example for cleaning purposes).

[0025] Suitably, the fastening element connects the matrix of the work tool to the filter cover. In particular, in the region of the fastening element, the first stop region for the air filter component is arranged at the matrix. Advantageously, the second stop region for the air filter component is arranged at the filter cover. In particular, the air filter component is maintained between the first stop region and the second stop region with a gap in the direction from the first stop region to the second stop region. Thus, the filter cover can be reliably maintained under the condition of low manufacturing tolerance requirements, and the filter cover can be pressed against the matrix in a sealing manner at the same time.

[0026] In an advantageous improvement of the present invention, the work tool has a receiving well for a battery pack. The battery pack can be pushed into the receiving well in the insertion direction through the receiving opening of the receiving well. In particular, the insertion direction extends parallel to the tool plane. In particular, the receiving well is arranged in the region of the longitudinal extension of the filter with respect to the longitudinal direction. Advantageously, the receiving well is arranged in the region of the rear half of the longitudinal extension of the filter with respect to the longitudinal direction. By the tangential plane being tangential to the side in the region of the rear half according to the present invention and intersecting with the tool plane before the longitudinal extension of the filter with respect to the longitudinal direction, there is enough space for the receiving well in the region of the rear half of the longitudinal extension of the filter. At the same time, in the region of the front half of the longitudinal extension of the filter, there is enough space outside the base of the work tool for arranging a gripping space, and the user can reach into the gripping space with the fingers of his hand. The arched section can be arranged near the base, so that the work tool can be compactly and ergonomically designed even when the battery well is large.

[0027] The receiving well has a depth measured in the longitudinal direction and a width measured perpendicularly to the tool plane. In particular, the width is greater than the depth. In particular, the width is at least 50%, in particular at least 60%, of the maximum width of the base body of the power tool measured perpendicularly to the tool plane. In particular, the base body of the power tool has the maximum width in the rear half of the longitudinal extension of the filter. As a result, a large battery pack can be accommodated in the battery well.

[0028] It is expediently provided that an imaginary projection of the air filter component onto the tool plane in a direction perpendicular to the tool plane and an imaginary projection of the receiving shaft onto the tool plane in a direction perpendicular to the tool plane overlap in the tool plane.

[0029] Suitably, there is no receiving opening for the receiving well of the battery on the side. Thus, the air filter component, in particular the filter surface of the air filter component, can be designed to be particularly large. It is not necessary to provide space for the receiving opening of the receiving well at the side.

[0030] The entry space limits a section of a flow path for cooling air. The flow path for cooling air extends from the entry opening to a motor of a handheld working tool for driving the tool. In particular, the flow path is guided through the entry space. The entry space has a flow cross section for cooling air along the flow path. In particular, the cooling air passes through the flow cross section when flowing through the entry space. The flow cross section extends perpendicularly to the longitudinal direction, in particular in a plane. In particular, the flow cross section extends transversely to the flow path.

[0031] In particular, the air filter component limits all flow cross sections. This causes that the cooling air flows along the filter surface of the air filter component. Thus, the work tool can be designed so that when the cooling air flows along the clean air space, especially the outside of the inner space, especially along the clean air space, especially the opening of the inner space, especially in the flow in the entry space after entering the work tool through the entry opening, it enters the clean air space of the work tool, especially the inner space of the housing of the matrix of the work tool. When flowing along this, the cooling air can gradually enter the clean air space, especially the inner space of the housing from the opening in which the air filter component extending in the longitudinal direction of the entry space is arranged, at or on it, so that the volume of the cooling air that has not yet entered the clean air space, especially the inner space, is reduced in the longitudinal direction during the flow. Therefore, the volume flow of the cooling air is reduced in the longitudinal direction. The problem arising from this is that the flow rate, especially the volume flow rate, is uneven. Without further measures, the flow rate, especially the volume flow rate, along the flow path, especially before entering the clean air space, especially the inner space of the housing, decreases as the spacing from the entry opening increases. In order to achieve a good and uniform cooling effect despite this, it can be provided that the flow cross section into the space is reduced in the longitudinal direction. This allows a uniform flow, in particular a uniform volume flow, to be achieved. This results in a good and uniform cooling effect. This allows the entire filter surface to be loaded evenly. This increases the service life of the filter.

[0032] Advantageously, it is provided that the flow cross section tapers continuously in the direction of the flow path.

[0033] In an advantageous refinement of the invention, the inlet space extends in the longitudinal direction starting from the inlet opening. As a result, a flow homogenization effect already occurs after the cooling air enters through the inlet opening. Suitably, the inlet space is limited at least on one side by the outer wall of the work tool. In particular, the inner side of the outer wall limits the inlet space.

[0034] In advantageous improvement scheme, the working tool is designed so that cooling air flows along the filter surface of the air filter component in the inlet space. In particular, the working tool is designed so that cooling air gradually enters the clean air space of the working tool through the air filter component during flowing along the filter surface.

[0035] By reducing the outer spacing in the longitudinal direction, a reduction in the flow cross section of the inlet chamber can be achieved in a simple manner.

[0036] In particular, the filter cover limits the inlet space. By means of the wedge shape of the filter cover described above, a reduction in the flow cross section of the inlet space in the longitudinal direction can be achieved in a simple manner. In particular, the inlet space is formed by the filter cover and the air filter component. In particular, the inlet space has an inlet opening for cooling air at one end thereof. Suitably, the other end of the inlet space for the cooling air to leave the interior space of the work tool is completely formed by the air filter component, in particular completely covered by the air filter component.

[0037] The tool has an upward direction. The upward direction extends in a direction transverse to, in particular perpendicular to, the longitudinal direction. The upward direction extends in particular in a direction parallel to the tool plane. If the tool is placed on a horizontal plane in the placement position provided for it, the upward direction extends appropriately perpendicular to the horizontal plane. The upward direction extends in particular in the direction from the bottom of the tool toward the housing cover of the tool.

[0038] It can be arranged that the air filter member is inclined with respect to the upward direction, in particular with respect to the tool plane, at an angle of at least 5°, in particular at a maximum of 40°. Suitably, the air filter member extends substantially in one plane. In particular, the spacing of the air filter member from the tool plane increases in the upward direction. This spacing is the local spacing of a single point of the air filter member from the tool plane. This inclined arrangement of the air filter member improves its self-cleaning.

[0039] In order to solve the other tasks, it is provided according to the present invention that the inlet space has at least one inlet opening for cooling air to enter the work tool. The air filter component limits the inlet space. The inlet space limits the section of the flow path for cooling air. The flow path for cooling air extends from the inlet opening to the motor of the handheld work tool for driving the tool. In particular, the flow path is guided through the inlet space. The inlet space has a flow cross section for cooling air along the flow path. In particular, the cooling air passes through the flow cross section when flowing through the inlet space. The flow cross section extends perpendicular to the longitudinal direction, in particular in a plane. In particular, the flow cross section extends transversely to the flow path.

[0040] According to the present invention, the inlet opening is arranged so that cooling air can flow through the inlet opening in the longitudinal direction. Since the cooling air flows through the inlet opening in the longitudinal direction, the work tool can be designed so that in the direction perpendicular to the tool plane of the work tool, there is only a small degree or no opening for cooling air to enter the work tool. In particular, the tool is surrounded in the tool plane. In particular, the inlet opening can be designed so that the inlet opening is mainly open in the direction against the longitudinal direction. Suitably, the portion of the inlet opening surface visible in the side view of the first side of the tool plane perpendicular to the work tool, especially the air filter component of the tool plane, which is also arranged on it, can be designed to be very small. Thus, only very few cutting objects of the tool can invade the inlet opening and enter the work tool. The tool is especially arranged at the front end of the handheld work tool in the longitudinal direction. Since the inlet opening is open to the rear end of the work tool about the longitudinal direction, the dirt input into the work tool through the inlet opening for cooling air generated by the tool during the use of the handheld work tool is small. Especially in the case of felling and cutting, only a small amount of dirt particles on which the gravity acts can enter the working tool through the inlet opening for cooling air. In this way, the entry of dirt through the inlet opening for cooling air is very small.

[0041] In addition, the air filter component limits all flow cross sections. This causes that cooling air flows along the filter surface of the air filter component. Thus, the work tool can be designed so that when cooling air flows along the outside of the clean air space, especially along the outside of the inner space, especially along the opening of the inner space, especially along the air filter component, especially in the flow in the entry space, after entering the work tool through the entry opening, it enters the clean air space, especially in the inner space of the housing of the work tool. When this flows along, cooling air can gradually enter the inner space of the housing from the opening in which the air filter component extending in the longitudinal direction of the entry space is arranged, at or on it, so that the volume of cooling air that has not yet entered the inner space is reduced in the longitudinal direction during the flow. Therefore, the volume flow of cooling air is reduced in the longitudinal direction. The problem resulting from this is that the flow rate, especially the volume flow rate, is uneven. Without further measures, the flow rate, especially the volume flow rate, along the flow path, especially before entering the clean air space, especially before entering the inner space of the housing, decreases as the spacing from the entry opening increases. In order to achieve a good and uniform cooling effect despite this, it is provided according to the invention that the flow cross section into the space is reduced in the longitudinal direction. This allows a uniform flow, in particular a uniform volume flow, to be achieved. This allows a good and uniform cooling effect to be achieved. This allows the entire filter surface to be loaded uniformly. This increases the service life of the filter.

[0042] Advantageously, it is provided that the flow cross section tapers continuously in the direction of the flow path.

[0043] In an advantageous development of the invention, the inlet space extends in the longitudinal direction starting from the inlet opening, thereby producing the effect of a uniform flow rate already after the cooling air has entered through the inlet opening.

[0044] Suitably, the access space is limited at least on one side by the outer wall of the work tool. In particular, the inner side of the outer wall limits the access space. Advantageously, the flow cross section is limited by the outer wall of the work tool.

[0045] In advantageous improvement scheme, the working tool is designed so that cooling air flows along the filter surface of the air filter component in the inlet space. In particular, the working tool is designed so that cooling air gradually enters the clean air space of the working tool through the air filter component during flowing along the filter surface.

[0046] Suitably, the work tool has a bottom. The bottom faces a horizontal plane in the placement position. In particular, the work tool has a housing cover arranged opposite to the bottom. In particular, the work tool has a side. The side connects the housing cover and the bottom to each other. The side limits the work tool in a longitudinal direction in a direction perpendicular to the tool plane. Advantageously, the entry space, in particular the entry opening, is arranged at the side of the work tool. As a result, the entry space, in particular the entry opening, can be approached in a simple manner. As a result, the area of ​​the entry opening, in particular the air filter, can be designed to be larger. The side of the work tool provides enough space for this. Suitably, the entry space is limited by the side, in particular the inner side of the side.

[0047] Suitably, the work tool comprises an arcuate handle. The arcuate handle has an arcuate section, which is located above the access space in a direction perpendicular to the tool plane. In particular, the arcuate section extends in a direction transverse to a direction extending perpendicular to the tool plane. In particular, the longitudinal direction of the arcuate section extends in a direction parallel to the tool plane. In particular, the arcuate section is located on a first side of the tool plane, and the access space is also located on this first side.

[0048] Advantageously, the outer side spacing of the side from the tool plane is reduced in the longitudinal direction in the region of the entry space. The outer side spacing is measured perpendicular to the tool plane. The outer side spacing is the spacing of the outer side of the side from the tool plane in the region where the filter of the air filter component extends longitudinally. In particular, the outer side spacing changes along the longitudinal direction. Accordingly, the outer side spacing is not a spacing in a geometric sense, but a size of local variation. In particular, the outer side spacing is reduced in the longitudinal direction from the inlet opening (through which cooling air can flow into the entry space from the outside in the longitudinal direction) to the arcuate section. In particular, the outer side spacing is reduced substantially continuously in the longitudinal direction, especially from the inlet opening to the arcuate section. By reducing the outer side spacing in the longitudinal direction, the reduction of the flow cross section of the entry space can be achieved in a simple manner.

[0049] Suitably, the outer spacing is smallest in the region of the arcuate section of the arcuate handle with respect to the longitudinal direction. Thus, sufficient space can be provided in the region of the arcuate section with respect to the longitudinal direction for the user to grip the arcuate handle. At the same time, the arcuate handle can be arranged in a space-saving manner. The small outer spacing in the region of the arcuate section enables the arrangement of the arcuate handle, in particular the arcuate section, so that the work tool is compact and ergonomically designed. As a result, the weight for the user can be reduced to a small extent, thereby improving the ergonomics of the work tool, in particular the motor saw.

[0050] The outer side of the side has a spacing area. The spacing area is located below the arched section in a direction perpendicular to the tool plane. In particular, the arched handle has an arched protrusion in the arched section that exceeds the spacing area measured perpendicular to the tool plane. The arched section of the arched handle protrudes beyond the outer side of the side below the arched section perpendicular to the tool plane with the arched protrusion in the area of ​​the side. This area of ​​the side is the spacing area. The arched protrusion is also called the arched spacing. In particular, the arched protrusion is a geometric spacing, that is, it describes the length of the shortest "spacing line" extending in a direction perpendicular to the tool plane. The arched spacing is measured perpendicular to the tool plane. The arched spacing corresponds to the distance of the arched section of the arched handle from the outer side of the side of the work tool measured perpendicular to the tool plane, especially from the area of ​​the outer side of the side below the arched section perpendicular to the tool plane, especially from the spacing area.

[0051] The bow handle has a center of gravity distance from the center of mass of the work tool measured perpendicular to the tool plane in the bow section. This center of gravity distance is also a distance in a geometric sense. Advantageously, the bow-shaped overhang is 20% to 60%, especially 30% to 50%, preferably 35% to 45% of the center of gravity distance. Thus, the bow handle, especially the bow section of the bow handle, can be arranged near the center of mass of the work tool. Since the outer spacing is smaller, especially the smallest, in the region of the bow section with respect to the longitudinal direction, the gripping of the bow handle in the bow section is also achieved when the ratio of the bow overhang to the center of gravity distance is small. This simultaneously achieves a compact design of the work tool and an ergonomic hand-holding and hand-carrying of the handheld work tool by means of the bow handle. Since the bow handle is located near the center of mass, the lever force for hand-holding and hand-carrying the work tool by means of the bow handle is small. In particular, the center of gravity distance is 9cm to 15cm, preferably 11cm to 13cm. It can also be arranged that the distance between the centers of gravity is 8 cm to 12 cm, in particular 9 cm to 11 cm.

[0052] In an advantageous refinement of the present invention, the work tool has a filter cover. However, a work tool design without a filter cover can also be provided. Preferably, the access space is limited by the filter cover. In particular, the inlet opening for cooling air is constructed in the filter cover. Thus, a simple manufacture of the inlet opening is achieved. In particular, the filter cover can cover the opening in which, on or at which the air filter component of the work tool is arranged in the part without the inlet opening. Advantageously, the filter cover forms part of the outer wall. Advantageously, the filter cover forms part of the side, in particular in the area of ​​the longitudinal extension of the filter. Thus, a simple manufacture of the inlet opening is achieved. Advantageously, the filter cover forms part of the outer wall. Advantageously, the filter cover forms part of the side.

[0053] Advantageously, in the placed position, the filter cover is substantially wedge-shaped in a view perpendicular to the horizontal plane. This allows a simple realization of a reduction in the flow cross section in the longitudinal direction.

[0054] Suitably, the filter cover is used to support the air filter component. In particular, the filter cover at least partially, advantageously completely covers the air filter component in a side view in a direction perpendicular to the first side of the tool plane. Suitably, the air filter component is maintained between the filter cover and the matrix of the work tool.

[0055] In particular, the air filter element is held with a gap between the filter cover and the base body of the work tool. This allows for simple manufacture of the work tool. The filter cover can be pressed against the base body and abut against the base body without having to take the air filter element into account for this, even if there are manufacturing tolerances. Since the filter cover can be pressed against the base body, low requirements can be placed on the manufacturing tolerances regarding the relative position of the base body and the filter cover, and the filter cover can still abut against the base body reliably and tightly.

[0056] Suitably, the filter cover and / or the air filter component can be fastened to the substrate by a single fastening element. As a result, the filter cover and / or the air filter component can be placed against the substrate in a sealed, especially airtight manner. In particular, the single fastening element is a central fastening element. Advantageously, the fastening element can be fastened approximately in the center of the filter cover, especially in the surface centroid of the plane associated with the outer contour of the filter, in a side view perpendicular to the tool plane, especially perpendicular to the first side of the tool plane. Since the filter cover and / or the air filter component can be fastened by a single fastening element, the filter cover and / or the air filter component can be assembled and disassembled in a simple and convenient manner. The air filter component can be disassembled very quickly and can be approached in a simple manner (for example for cleaning purposes).

[0057] Suitably, the fastening element connects the matrix of the work tool to the filter cover. In particular, in the region of the fastening element, the first stop region for the air filter component is arranged at the matrix. Advantageously, the second stop region for the air filter component is arranged at the filter cover. In particular, the air filter component is maintained between the first stop region and the second stop region with a gap in the direction from the first stop region to the second stop region. Thus, the filter cover can be reliably maintained under the condition of low manufacturing tolerance requirements, and the filter cover can be pressed against the matrix in a sealing manner at the same time.

[0058] In an advantageous improvement of the present invention, the work tool has a receiving well for a battery pack. The battery pack can be pushed into the receiving well in the insertion direction through the receiving opening of the receiving well. In particular, the insertion direction extends parallel to the tool plane. In particular, the receiving well is arranged in the region of the access space with respect to the longitudinal direction. Due to the wedge-shaped design of the access space, in particular the filter cover, there is enough space for the receiving well in the rear region with respect to the longitudinal direction, in particular in the rear half of the access space. At the same time, in the region of the front half of the access space with respect to the longitudinal extension, there is enough space outside the base of the work tool for arranging a gripping space, into which the user can reach with the fingers of his hand. The arched section can be arranged near the base, whereby the work tool can be designed compactly and ergonomically even when the battery well is large.

[0059] The receiving well has a depth measured in the longitudinal direction and a width measured perpendicularly to the tool plane. In particular, the width is greater than the depth. In particular, the width is at least 50%, in particular at least 60%, of the maximum width of the base body of the power tool measured in a direction perpendicular to the tool plane. In particular, the base body of the power tool has the maximum width in the rear half of the access space with respect to the longitudinal direction. As a result, a large battery pack can be accommodated in the battery well.

[0060] It is expediently provided that an imaginary projection of the access space onto the tool plane in a direction perpendicular to the tool plane and an imaginary projection of the receiving shaft onto the tool plane in a direction perpendicular to the tool plane overlap in the tool plane.

[0061] Suitably, there is no receiving opening for the receiving well of the battery on the side. Thus, the air filter component, in particular the filter surface of the air filter component, can be designed to be particularly large. It is not necessary to provide space for the receiving opening of the receiving well at the side.

[0062] In particular, the filter cover limits the inlet space. By means of the wedge shape of the filter cover described above, a reduction in the flow cross section of the inlet space in the longitudinal direction can be achieved in a simple manner. In particular, the inlet space is formed by the filter cover and the air filter component. In particular, the inlet space has an inlet opening for cooling air at one end thereof. Suitably, the other end of the inlet space for cooling air to leave the clean air space of the work tool, in particular in the interior space of the work tool, is completely formed by the air filter component, in particular completely covered by the air filter component.

[0063] The tool has an upward direction. The upward direction extends in a direction transverse to, in particular perpendicular to, the longitudinal direction. The upward direction extends in particular in a direction parallel to the tool plane. If the tool is placed on a horizontal plane in the placement position provided for it, the upward direction extends appropriately perpendicular to the horizontal plane. The upward direction extends in particular from the bottom of the tool to the housing cover of the tool.

[0064] It can be arranged that the air filter member is inclined with respect to the upward direction, in particular with respect to the tool plane, at an angle of at least 5°, in particular at a maximum of 40°. Suitably, the air filter member extends substantially in one plane. In particular, the spacing of the air filter member from the tool plane increases in the upward direction. This spacing is the local spacing of a single point of the air filter member from the tool plane. This inclined arrangement of the air filter member improves its self-cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] The following is an explanation of the embodiments of the present invention based on the accompanying drawings.

[0066] Figure 1 A perspective view of a hand-held power tool without a tool is shown, wherein the filter cover is shown in an exploded view removed from the main body of the power tool,

[0067] Figure 2 Shown is a tool Figure 1 , a schematic side view of a working tool in FIG. 1 , with the viewing direction being perpendicular to a first side of a tool plane of the tool, on which the air filter component is also arranged,

[0068] Figure 2a Shows the Figure 1 , a schematic side view of an alternative embodiment of a working tool in , in which the air filter component is open at a first side without being covered by a filter cover, wherein the working tool with the tool is shown in a viewing direction perpendicular to a first side of a tool plane of the tool, on which the air filter component is also arranged,

[0069] Figure 3 The longitudinal direction of the work tool is shown in FIG. Figure 1 A side view of the rear end of the working tool,

[0070] Figure 4 Shown from above Figure 1 A schematic plan view of the working tool in the Figure 2a A schematic plan view of the working tool in the Fig. 9 A schematic plan view of a working tool in FIG.

[0071] Figure 5 Shows the Figure 1 A side view of the outer side of the filter cover of the working tool in FIG.

[0072] Figure 6 Shows the Figure 1 A side view of the inside of a filter cover of a working tool in FIG.

[0073] Figure 7 Shows the Figure 5 , which, in the assembled state of the filter cover, faces the rear end of the working tool,

[0074] Figure 8 Shown from below Figure 5 , a plan view of the filter cover on the underside, which, in the assembled state of the filter cover, points downward when the work tool is placed on its placement surface on a horizontal surface,

[0075] Fig. 9 The viewing direction is shown perpendicular to the first side of the tool plane of the tool (not shown) on which the air filter component should also be arranged. Figure 1 A schematic side view of an alternative embodiment of a work tool in which the filter cover is removed and the air filter element is removed,

[0076] Fig.10 Shown from below Fig. 9 , wherein the filter cover is removed and the opening into the interior of the basic housing is visible,

[0077] Fig.11 Shown along the Fig.13 The section plane XI-XI drawn in Fig. 9 A sectional view of a horizontal section of a working tool in FIG. 1 , wherein an air filter component is installed and a filter cover is installed,

[0078] Fig.12 Shown along the Fig.13 The section plane XII-XII drawn in Fig. 9 A sectional view of a horizontal section of a working tool in FIG. 1 , wherein an air filter component is installed and a filter cover is installed,

[0079] Fig.13 Shown along the Fig.11 The section plane XIII-XIII drawn in Fig. 9 A sectional view of a vertical section of a working tool in FIG. 1 , wherein an air filter component is installed and a filter cover is installed,

[0080] Fig.13a Shows Fig.13 Magnified details in the

[0081] Fig.14 Shown along the Fig.11 The section plane XIV-XIV drawn in Fig. 9 sectional view of a vertical section through a work tool in FIG. 1 , wherein an air filter component is mounted and a filter cover is mounted. DETAILED DESCRIPTION

[0082] Figure 1 A handheld working tool 1 is shown. The handheld working tool 1 comprises Figure 2 The tool 6 shown in Figure 1 ). The handheld working tool can be a motor chain saw, a cutter or a similar handheld working tool. The working tool 1 can be hand-held when used as specified. The working tool 1 is hand-held when used as specified. In the embodiment, the working tool 1 is a motor chain saw. In the embodiment, the motor chain saw is a so-called rear handle chain saw or a felling saw. However, the motor chain saw can also be a pruning saw with an operating handle located at the top.

[0083] As in Figure 2 , the handheld working tool 1 comprises a motor 7 for driving a tool 6. In the embodiment, the motor 7 is an electric motor. The tool 6 is a saw chain. However, in particular in the case where the working tool is a cut-off machine, it can also be provided that the tool 6 is a saw blade or a cut-off disk. In the embodiment, the tool 6 is rotated around the guide rail 33 during operation.

[0084] In all embodiments, the work tool 1 includes an operating handle 34. An operating element 35 is arranged at the operating handle 34. The operator can preset the power of the motor 7 or the rotation speed of the motor 7 or the tool 6 by means of the operating element 35. The operating handle 34 limits the handle opening 36. The user can extend the fingers of his hand through the handle opening 36 and thus surround the operating handle 34. The handle opening 36 completely penetrates the work tool 1, especially the base 37 of the work tool 1. In all embodiments, in addition to the operating handle 34, the work tool 1 also includes a bow handle 27. The bow handle 27 is used to carry and hold the work tool 1. The bow handle 27 is formed by a handle tube. The user can completely wrap around the handle tube.

[0085] The bow handle 27 is arranged between the operating handle 34 and the tool 6. The longitudinal direction 50 extends from the operating handle 34 in the direction of the tool 50. This also applies to the case of a pruning saw. When the work tool 1 is placed on a horizontal plane, the longitudinal direction 50 runs parallel to the horizontal plane. In this 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 arranged behind the tool 6 with respect to the longitudinal direction 50. The tool 6 is arranged in front of the operating handle 34 with respect to the longitudinal direction 50.

[0086] If first a starting point, then a first point and then a second point are arranged along the longitudinal direction 50, i.e. the second point has a greater distance from the starting point measured in the longitudinal direction 50 than the first point from the starting point in the longitudinal direction 50, then the second point is located before the first point with respect to the longitudinal direction 50. The first point is located after the second point with respect to the longitudinal direction 50.

[0087] The work tool 1 has a front end 2 and a rear end 3. The front end 2 faces away from the user during the operation of the work tool 1. The rear end faces the user during the operation of the work tool 1. The tool 6 is arranged at the front end 2. In this embodiment, the front end 2 is at the front end of the guide track 33. The tool 6 that circles around the guide track 33 passes through the front end 2 of the work tool 1 during the circle. The rear end 3 is arranged at the rear end of the operating handle 34. The operating handle 34 forms the rear end 3 of the work tool 1. The longitudinal direction 50 extends in the direction from the rear end 3 to the front end 2. When the work tool 1 is used, the longitudinal direction 50 points away from the operator. In this embodiment, the longitudinal direction 50 corresponds to the longitudinal direction of the guide track 33. The bow handle 27 is arranged between the front end 2 and the rear end 3 with respect to the longitudinal direction 50.

[0088] The work tool 1 can be placed on a horizontal plane, especially in a placement position. The work tool 1 includes a bottom 17. In an embodiment, the work tool can be placed on its bottom 17. The bottom 17 forms a placement surface. However, it can also be arranged that the work tool can be placed on the legs and there is a spacing between the bottom 17 and the horizontal plane. In any case, in the placement position, the bottom 17 faces the horizontal plane. The placement position is also referred to as a placement state. When the work tool 1 is placed on a horizontal plane, the longitudinal direction 50 extends parallel to the horizontal plane. In an embodiment, the longitudinal direction 50 extends parallel to the placement surface constructed by the bottom 17.

[0089] As in Figure 2As shown in FIG. 1 , the power tool 1 comprises an inlet opening 4. The inlet opening 4 is used for cooling air to enter the power tool 1. The cooling air is provided for cooling the motor 7 configured as an electric motor, in particular for cooling the electronic components of the electric motor. The power tool 1 comprises an air filter element 12 for filtering the cooling air. Figure 1 The air filter member 12 is shown in FIG. Figure 2a An alternative embodiment with an alternatively designed air filter component 12 is shown. In an embodiment, the air filter component 12 comprises a filter frame and an air filter. The air filter is especially held in the filter frame. The air filter is a unit that itself causes air filtering. In an embodiment, the air filter of the air filter component 12 is a fine filter. The fine filter has a mesh size less than 100 μm. In an embodiment, the air filter of the air filter component 12 is a flat filter. But 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 be composed of only an air filter. It can also be arranged that the air filter component does not include a filter frame.

[0090] The work tool 1 comprises a housing 5. A motor 7 is arranged in the housing 5. The housing 5 delimits the work tool 1 to the outside. In this embodiment, the motor 7 is arranged in a base body 37 of the work tool 1. The base body 37 has a base housing 38, which is also Figure 1 . The motor 7 is arranged in a basic housing 38 of the base body 37. The housing 5 is at least partially formed by the basic housing 38. The bow handle 27 bridges the housing 5. The bow handle 27 bridges the base body 37. The bow handle 27 bridges the basic housing 38. The bow handle 27 is not a component of the housing 5. The bow handle 27 is not a component of the basic housing 38.

[0091] As in Figure 2 As shown in , the tool 6 has a tool plane E. The tool plane E extends parallel to the longitudinal direction 50. The longitudinal direction 50 extends parallel to the tool plane E. In the embodiment, the tool plane E extends perpendicular to the bottom 17 of the work tool 1. The handle opening 36 completely penetrates the work tool 1, in particular the base housing 38 of the work tool 1, in a direction perpendicular to the tool plane E. In the placement position, the tool plane E extends perpendicular to the horizontal plane. When the work tool 1 is placed on a horizontal plane, the tool plane E extends perpendicular to the horizontal plane. The tool 6 is wrapped around in the tool plane E. In this embodiment, the saw chain wraps around the guide rail 33 in the tool plane E. However, in particular when the work tool is a cut-off machine, it can also be arranged that the tool 6 is a circular saw blade or a cut-off disk. In this case, the circular saw blade rotates in the tool plane. The rotation axis of the tool 6 extends perpendicular to the tool plane E.

[0092] As from Figure 2 , Figure 3 and Figure 4 As can be seen in the figure, 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. Thus, cooling air can enter the work tool 1 through the inlet opening 4 in the direction from the rear end 3 of the work tool 1 toward the front end 2 of the hand-held work tool 1. In particular, Figure 3 As can be seen in the figure, cooling air can flow through the inlet opening 4 in the longitudinal direction 50. In the side view of the rear end 3, the inlet opening 4 for cooling air from the outside into the interior of the hand-held power tool 1 can be seen. More than half, in particular more than two thirds of the cooling air enters the power tool 1 through the inlet opening 4 in the longitudinal direction 50.

[0093] In accordance with Figure 2a In the embodiment of FIG. 5 , on the contrary, it is provided that the cooling air enters the power tool 1 essentially in a direction transverse to, in particular perpendicular to, the longitudinal direction 50 . Figure 2a In the embodiment of FIG. 1 , the cooling air enters the work tool 1 in a direction transverse to, in particular perpendicular to, the tool plane E. Figure 2a In the embodiment of the invention, a lateral inlet opening 62 is provided for the cooling air to enter the work tool 1. Figure 2a In the exemplary embodiment of FIG. 1 , the air filter element 12 forms a part of the outer housing 5 of the work tool 1 .

[0094] In all embodiments, the tool plane E has Figure 3 4. 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 element 12 is arranged completely on the first side 46 of the tool plane E. The inlet opening 4 or the inlet opening 62 is arranged completely on the first side.

[0095] As in Figure 2 In and for Figure 2 An alternative embodiment of the work tool 1 in Figure 2a As shown in , the housing 5 of the handheld working tool 1 has a housing outer contour 8 in a side view perpendicular to the tool plane E, in particular the first side 46 of the tool plane E. When the housing outer contour 8 is projected onto the tool plane E in a direction perpendicular to the tool plane E, the housing outer contour 8 limits an imaginary housing surface 9 in the tool plane E. The housing outer contour 8 surrounds all openings of the working tool 1 that are located within the housing outer contour 8. In particular, the housing outer contour 8 surrounds the handle opening 36. The housing surface 9 does not have an area that is not included in the housing surface 9 and is surrounded by the housing surface 9. The housing surface 9 does not have an internal contour. The housing surface 9 is limited by a single, closed boundary line (i.e., the housing outer contour 8) that surrounds the housing surface 9.

[0096] In all embodiments, the work tool 1 comprises a brake lever 43. The brake lever 43 is pivotably supported on the base body 37. The brake lever 43 is pivotably supported on the housing 5. The brake lever 43 is used to brake the tool 6. The brake lever 43 is partially located outside the housing outer contour 8. The brake lever 43 protrudes beyond the housing outer contour 8.

[0097] In all embodiments, the work tool 1 comprises Figure 2 The claw-shaped stop 44 is shown in FIG. The claw-shaped stop 44 is fixed to the housing 5. When the tool 6 engages in the workpiece, the claw-shaped stop 44 serves as a stop for the work tool 1. The claw-shaped stop 44 is at least partially located outside the housing outer contour 8. The claw-shaped stop 44 protrudes beyond the housing outer contour 8.

[0098] In a side view of a first side 46 perpendicular to the tool plane E, the work tool 1 (except for the Figure 2a (except for the exemplary embodiment of the present invention) within the housing outer contour 8, at least 95%, in particular at least 97%, advantageously at least 98.5% of the housing surface 9, there are no openings for the inlet of cooling air into the power tool 1. The side view of the first side 46 perpendicular to the working plane E is a side view of the power tool 1 in which a person looks in a direction perpendicular to the tool plane E, that is, from the first side 46 of the tool plane E. The person is therefore on the first side 46 of the tool plane E and looks in the direction of the tool plane E.

[0099] The projection of all openings for the inlet of cooling air visible in the side view of the first side 46 perpendicular to the tool plane E onto the tool plane E in a direction perpendicular to the tool plane E covers a surface area of ​​the housing surface 9 of less than 5%, in particular less than 3%, advantageously less than 1.5%. The area of ​​the housing surface 9 without the projection of openings for the inlet of cooling air into the power tool 1 is at least 95%, in particular at least 97%, in the exemplary embodiment at least 98.5% of the housing surface 9.

[0100] The opening is understood to be the portion of the through-opening for the inlet of cooling air into the work tool 1 which is visible in a side view in the direction of the first side 46 perpendicular to the tool plane E. The through-opening may be larger than the opening. In a side view in the direction of the first side 46 perpendicular to the tool plane E, the through-opening may be covered by a component of the work tool 1 .

[0101] The inlet opening 4 is a through opening for cooling air to enter the work tool 1. The inlet opening 4 is arranged at the outside of the work tool 1. The inlet opening 4 is a first inlet port for cooling air to enter the work tool 1 from the outside. The inlet opening 4 is an opening for cooling air to enter the work tool 1 in the above sense. In this embodiment, the projected area of ​​the opening of the inlet opening 4 and the through opening of the inlet opening 4 are the same. However, it may also happen that the projected area of ​​the through opening is larger than the projected area of ​​the opening.

[0102] Instead of being in the tool plane E, the housing outer contour 8 can also delimit the housing surface 9 in an imaginary plane extending parallel to the tool plane E.

[0103] As in Figure 2 As shown in , the work tool 1 has an outer wall 10. The access opening 4 completely penetrates the outer wall 10. The through opening completely penetrates the outer wall 10. The opening completely passes through the outer wall 10. The outer wall 10 is the direct boundary of the work tool 1 with respect to the external area. The outer wall 10 at least partially forms a wall of the housing 5.

[0104] As especially Figure 2 and Figures 5 to 8 As shown in FIG. , the working tool 1 (except for the Figure 2a ) has a lower inlet opening 11. The lower inlet opening 11 is provided for cooling air to enter the work tool 1. The lower inlet opening 11 is provided in addition to the inlet opening 4. The lower inlet opening 11 is arranged in such a way 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 observed in the upward direction 49 is at least twice, in this embodiment at least three times, the flow cross section of the lower inlet opening 11 observed in the longitudinal direction. The upward direction 49 extends in a direction transverse to the longitudinal direction 50. The upward direction 49 extends in a direction parallel to the tool plane E. In this embodiment, the upward direction 49 extends in a direction perpendicular to the longitudinal direction 50. If the work tool 1 is placed on a horizontal plane in the placement position provided for it, the upward direction 49 extends perpendicular to the horizontal plane in this embodiment. In this embodiment, the upward direction 49 extends perpendicular to the bottom 17. In the embodiments (except Figure 2a ), the lower inlet opening 11 is designed separately from the inlet opening 4. However, it can also be provided that a single inlet opening is provided, through which cooling air can enter the power tool 1 both in the longitudinal direction 50 and in the upward direction 49. In this case, the single inlet opening is only divided into the inlet opening 4 and the lower inlet opening 11 in an imaginary manner.

[0105] The power tool 1 is designed in such a way that dirt that has been loosened and fallen from the air filter element 12 due to gravity can fall out of the power tool 1 through the lower inlet opening 11. The lower inlet opening 11 serves as a dirt outlet. Figure 2a In other embodiments, it may be provided that the air filter element 12 is inclined at an angle of at least 5° relative to the upward direction 49. In all embodiments, the air filter element 12 extends substantially in one plane.

[0106] As in Figure 3 and Figure 4 In the figure, the dashed line schematically shows that except for Figure 2a In all embodiments except the embodiment of the handheld power tool 1, the handheld power tool 1 has an inlet space 24. The inlet space 24 is used for the cooling air to enter the power tool 1. The power tool 1 is designed in such a way that the cooling air first enters the inlet space 24 in an unfiltered manner.

[0107] The cooling air then passes through the air filter element 12 from the inlet space 24 into the clean air space 14. This applies to all embodiments. The area downstream of the air filter 12 along the flow path 26 is referred to as the clean air space 14.

[0108] In accordance with Figure 1 , Figure 2 , Figure 2a , Figure 3 and Figure 4 In both embodiments, the cooling air directly enters the inner space 39 of the base body 37 after passing through the air filter member 12. In the inlet space 24, the cooling air to be filtered by the air filter member 12 enters the work tool 1. The air filter member 12 limits the inlet space 24.

[0109] Enter Space 24 (except according to Figure 2a In all embodiments except for Figure 1 , Figure 3 and Figure 4 The overview of FIG. 2 shows the course of the flow path 26 in the power tool 1 . The flow path 26 is schematically indicated by a dotted line. The flow path 26 leads from the inlet opening 4 to the motor 7 . Figure 4 , the position of the motor 7 within the base housing 38 of the base body 37 of the handheld power tool 1 is also schematically indicated by dashed lines. A flow path 26 leads from the motor 7 out of the power tool 1. The flow path 26 leads through the inlet space 24. The inlet space 24 is a component of the flow path 26.

[0110] Along the flow path 26, the entry space 24 has Figure 3 and Figure 4 In the example, except for Figure 2a In all embodiments except the embodiment of , the flow cross sections 31, 32 are schematically drawn with dashed lines. Figure 3 and Figure 4 31 and the second flow cross section 32 are shown in FIG. The cooling air passing through the second flow cross section 32 also passes through the first flow cross section 31. The cooling air passes through the first flow cross section 31 to reach the second flow cross section 32. The inlet space 24 limits the flow cross sections 31, 32. The air filter component 12 limits the flow cross sections 31, 32, especially all the flow cross sections 31, 32. The air filter component 12 is directly attached to the flow cross sections 31, 32. The first flow cross section 31 is arranged upstream of the second flow cross section 32 with respect to the flow path 26. The second flow cross section 32 is arranged downstream of the first flow cross section 31 with respect to the flow path 26. When the cooling air enters the work tool 1, the cooling air passes through the first flow cross section 31 before the second flow cross section 32. According to the definition, the flow cross sections 31, 32 are oriented perpendicular to the longitudinal direction 50 of the work tool 1. The flow cross sections 31, 32 extend perpendicular to the tool plane E. The flow cross sections 31, 32 extend in a plane extending perpendicular to the longitudinal direction 50. The flow cross sections 31, 32 extend at least transversely to the direction of the flow path 26. The flow cross sections 31, 32 decrease in the direction of the flow path 26. The flow cross sections 31, 32 decrease 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 power tool 1 is designed in such a way 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.

[0111] In the embodiments (except Figure 2a ), the flow cross sections 31 , 32 decrease continuously in the direction of the flow path 26 , in particular in the longitudinal direction 50 .

[0112] The access space 24 is limited at least on one side by the outer wall 10 of the work tool 1, in particular the inner side of the outer wall 10. The outer wall 10 can be the outer wall of the access space 24. Figure 2a The access space 24 is limited on three sides by the outer wall 10 of the work tool 1, such as from Figure 2 , Figure 3 and Figure 4 In all embodiments (also Figure 2a The outer wall 10 of the working tool 1 limits the working tool 1 to the outside. In the area of ​​the access space 24, the outer wall 10 forms a projection (except for Figure 2a In all embodiments (except Figure 2a The outer wall 10 protrudes beyond the base body 37 of the work tool 1 in the region of the access space 24, in particular in a direction perpendicular to the tool plane E. The outer wall 10 also delimits the base body 37 of the work tool 1. The outer wall 10 is at least partially an outer wall of the base housing 38. Figure 1 As shown in FIG. 1 , the work tool 1 has an air filter element 12 for filtering cooling air. The air filter element 12 at least partially restricts access to the space 24. Figure 2a In all embodiments except for the embodiment of FIG. 1 , the air filter member 12 is arranged between the interior of the inlet space 24 and the clean air space 14. Figure 1 , Figure 2 , Figure 3 and Figure 4 (if Figure 4 and Figure 1 In the embodiment of the invention (associated with FIG. 1 ), the air filter component 12 is arranged between the interior of the inlet space 24 and the interior space 39 of the base body 37 of the hand-held working tool 1 . Figure 4 The position of the inner space 39 is shown in FIG. The inner space 39 is limited by the base housing 38 of the base body 37. The motor 7 is arranged in the inner space 39. The inner space 39 has Figure 1 The opening 41 is shown in FIG. The opening 41 is an opening in the base housing 38 of the base body 37. The opening 41 completely penetrates the wall of the base housing 38. The opening 41 is used for cooling air to enter the interior space 39. The interior space 39 is limited by the base housing 38. Figure 1 , Figure 2 , Figure 3 and Figure 4 (if Figure 4 and Figure 1 In an embodiment associated with FIG. 4 , the air filter member 12 is arranged in, on or at the opening 41 .

[0113] In an alternative embodiment ( Figures 9 to 14 ) can be provided that the opening 41 in which, at or on which the air filter element 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. Figures 9 to 14. In this case, the base shell 38 has a wall penetration opening 45. The wall penetration opening 45 completely penetrates the wall of the base shell 38. The wall penetration opening 45 is arranged in a recess in the base shell 38. Through the wall penetration opening 45, cooling air can be sucked into the interior space 39 of the base shell 38. Through the wall penetration opening 45, the cooling air can advance into the interior space 39 of the base shell 38. The cooling air is filtered between the air filter component 12 and the wall penetration opening 45. The area downstream of the air filter component 12 along the flow path 26 is called the clean air space 14. The recess in the base shell 38 is part of the clean air space 14, as shown in Fig.11 and Fig.12 as shown in .

[0114] The recess delimits the flow path 26 in a funnel-shaped manner in the region between the air filter element 12 and the wall penetration opening 45. After the cooling air has been filtered through the air filter element 12, the effective flow cross section along the flow path 26 decreases.

[0115] exist Figure 2 In the example, except Figure 2a The inlet opening 4 shown in all embodiments except for the above forms the inlet of the inlet space 24. The air filter member 12 forms the outlet of the inlet space 24. At the same time, the air filter member 12 forms the side wall of the inlet space 24. On the one hand, the cooling air flows along the air filter member 12, and on the other hand, the cooling air can enter the clean air space 14 through the air filter member 12.

[0116] Through the air filter element 12, air can penetrate from the inlet space 24 through the opening 41 of the base housing 38 into the interior space 39. Figure 1 , Figure 2 , Figure 3 and Figure 4 (if Figure 4 and Figure 1 In the embodiment associated with , the cooling air passes through the air filter element 12 directly into the interior space 39. Figures 9 to 14 In the embodiment of FIG. 1 , the cooling air passes through the recess between the air filter member 12 and the interior space 39. The air filter member 12 simultaneously forms an outlet into the space 24 and restricts the entry into the space 24. Figure 2a In all embodiments except for , the air filter element 12 restricts access to the space 24 in a direction perpendicular to the tool plane E.

[0117] The access space 24 has a spatial volume. The spatial volume is the volume of the access space 24 that can be filled with cooling air. The spatial volume has a rearmost point with respect to the longitudinal direction 50. The rearmost point of the spatial volume has a maximum spacing from the tool 6 measured in the longitudinal direction 50. The rearmost point of the spatial volume has a maximum spacing from the front end 2 of the work tool 1 measured in the longitudinal direction 50. With respect to the longitudinal direction 50, the spatial volume has a frontmost point. With respect to the longitudinal direction 50, the frontmost point is located before the rearmost point. Along the longitudinal direction 50, the frontmost point is located before the rearmost point. The frontmost point of the spatial volume has a maximum spacing from the operating handle 34 measured in the longitudinal direction 50. The frontmost point of the spatial volume has a maximum spacing from the rear end 3 of the work tool 1 measured in the longitudinal direction 50. The longitudinal extension 54 of the access space 24 extends in the longitudinal direction 50 from the frontmost point of the access space 24 to the rearmost point of the access space 24.

[0118] As in Figure 2 In the example, except Figure 2a In all embodiments except for the embodiment shown, the opening 41 has a longitudinal extension f. The longitudinal extension f is measured in the longitudinal direction 50. The entry space 24 has a length l measured in the longitudinal direction 50. The entry space 12 extends along the longitudinal direction 50. The length of the longitudinal extension 54 of the entry space 24 measured in the longitudinal direction 50 corresponds to the length l of the entry space 24. The length l is measured from the rearmost point of the entry space 24 to the frontmost point of the entry space 24. The air filter component 12 limits the entry space 12 in a direction transverse to its own longitudinal extension. In an embodiment, the longitudinal extension f of the opening 41 is at least 70%, especially at least 80%, advantageously at least 85% of the length l of the entry space 24. Therefore, cooling air can penetrate the opening 41 on a very large part of the longitudinal extension of the entry space 24, especially through the air filter component 12 from the entry space 24 into the clean air space 14, especially the inner space 39 of the base body 37 of the handheld working tool 1. To a certain extent, the entry space 24 is open in most of its longitudinal extension. The entry space 24 may also be referred to as semi-open.

[0119] The cooling air flows in the inlet space 24 along the filter surface of the air filter element 12. While flowing along the filter surface, the cooling air gradually passes through the air filter element 12 into the clean air space 14 of the work tool 1.

[0120] The inlet space 24 may also be referred to as a flow channel.

[0121] As in Figure 4As shown in , the entry space 24 has a width a1, a2 measured in a direction perpendicular to the tool plane E and varying in the longitudinal direction 50. The width a1, a2 is measured between the inner side of the outer wall 10 and the air filter component 12. The first width a1 is measured at the entry opening 4. The first width a1 at the entry opening 4 corresponds to the maximum width of the entry space 24. The width of the entry space 24 decreases continuously in the longitudinal direction 50. The second width a2 is measured in the region of the motor 7 with respect to the longitudinal direction 50. 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 entry space 24 is substantially wedge-shaped. In particular, in a view perpendicular to the longitudinal direction 50 and at the same time parallel to the tool plane E, the entry space 24 is substantially wedge-shaped. In the placed position, the access space 24 is wedge-shaped in a view perpendicular to the horizontal plane.

[0122] When cooling air is sucked into the interior of the power tool 1 by a blower (not shown), in particular by a blower wheel (not shown), according to Figure 1 , Figure 2 , Figure 3 and Figure 4 (If Figure 1 or Fig. 9 associated) and Figures 9 to 14 In the embodiment of the present invention, cooling air enters the working tool 1 through the inlet opening 4. Figure 2a and Figure 4 (If Figure 2a In the embodiment associated with ( ), the cooling air enters the working tool 1 directly through the air filter component 12. The cooling air follows the flow path 26. Here, the cooling air enters the space 24 ( Figure 1 , Figure 2 , Figure 3 , Figure 4 (If Figure 1 and Fig. 9 associated) and Figures 9 to 14 (Apart from Figure 2a1 and 1) flow along the air filter member 12. During the flow of cooling air along the air filter member 12, the cooling air can leave the inlet space 24 through the air filter member 12. In this way, during the flow of cooling air along the air filter member 12, more and more air leaves the inlet space 24 through the air filter member 12 and enters the clean air space 14, especially the inner space 39 through the opening 41 located behind it. In this way, the air volume passing through the flow cross section 31, 32 is getting smaller and smaller in the inlet space 24 along the flow path 26, especially in the longitudinal direction 50. Since the flow cross section 31, 32 becomes smaller in the direction of the flow path 26, the cooling air volume flow in the inlet space 24 can still be kept approximately constant. Thus, uniform flow conditions are generated.

[0123] As in Figure 3 (and also Figure 2 and Figure 2a ) are shown as examples for all embodiments and the following for all embodiments (also according to Figure 2a ), the basic housing 38, in particular the housing 5, has a housing cover 20 arranged opposite to the bottom 17. The housing cover 20 limits the basic housing 38, in particular the housing 5, of the power tool 1 in an upward direction 49. The upward direction 49 extends perpendicularly to the longitudinal direction 50 and at the same time parallel to the tool plane E. When the power tool 1 is placed on a horizontal plane in the placement position, the upward direction 49 extends upward perpendicularly to the horizontal plane. The bottom 17 limits the basic housing 38, in particular the housing 5, in a direction opposite to the upward direction 49. The basic housing 38, in particular the housing 5, has a first side surface 21. The first side surface 21 connects the housing cover 20 to the bottom 17. The first side surface 21 is a component of the outer wall 10. The first side surface 21 extends in the longitudinal direction 50. The basic housing 38, in particular the housing 5 of the power tool 1 has a second side surface 42. The second side surface 42 connects the housing cover 20 to the bottom 17. The second side surface 42 extends in the longitudinal direction 50. The first side surface 21 and the second side surface 42 are arranged opposite to each other, in particular in a direction perpendicular to the tool plane E. The first side surface 21 limits the basic housing 38, in particular the housing 5, on a first side 46 of the tool plane E in a direction perpendicular to the tool plane E. The second side surface 41 limits the basic housing 38, in particular the housing 5, of the work tool 1 on a second side 47 of the tool plane E. The first side surface 21 extends between the housing cover 20 and the bottom 17. The air filter component 12 is arranged at the first side surface 21 of the basic housing 38 of the base body 37 of the hand-held work tool 1. The opening 41 in the basic housing 38 is arranged at the first side surface 21 of the basic housing 38. The first side surface 21 forms the outer side of the work tool 1, in particular the outer side of the housing 5 of the work tool 1. In all embodiments, the air filter component 12 is arranged at the first side surface 21. In accordance with Figure 2a In the embodiment of the present invention, the air filter component 12 is an integral part of the first side 21. The air filter component 12 forms a part of the first side 21. In the remaining embodiments, the air filter component 12 is arranged in the region of the first side 21. In the remaining embodiments, the first side 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 21 than to the tool plane E with respect to the direction perpendicular to the tool plane E. The spacing of the air filter component 12 measured in the direction perpendicular to the tool plane E from the tool plane E is at least five times, in this embodiment at least ten times, the spacing of the filter surface of the air filter component 12 measured in the direction perpendicular to the filter surface of the air filter component 12 from the first side 21.

[0124] As in Figure 2 In the example shown for all embodiments, the air filter component 12 has a filter outer contour 28 in an imaginary projection onto the tool plane E in a direction perpendicular to 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. Figure 2 The filter surface 29 is schematically indicated by a dashed line in FIG. The filter surface 29 is at least 5%, in particular at least 10%, in this embodiment at least 15% of the housing surface 9. The filter surface 29 is at least 100 cm 2 , in this embodiment at least 125 cm 2 The surface is measured in the projection into the tool plane E. In particular, the surface is measured in a side view perpendicular to the tool plane E.

[0125] As in Figure 4 , the air filter component 12 has a filter longitudinal extension 70 in the longitudinal direction 50. The air filter component 12 is arranged between an imaginary first contact plane B1 and an imaginary second contact plane B2. The first contact plane B1 and the second contact plane B2 each extend perpendicularly to the longitudinal direction 50. The air filter component 12 extends in particular from the imaginary first contact plane B1 to the imaginary second contact plane B2.

[0126] 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 a 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 bow handle 30 is arranged in the area of ​​the tool end 52.

[0127] The first contact plane B1 is tangent to the air filter component 12 at the handle end 51 of the air filter component 12. 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 longitudinal extension 70 of the air filter component 12, especially the area of ​​the filter longitudinal extension 70, extends from the handle end 51 to the tool end 52 in the longitudinal direction 50. In all embodiments, the area of ​​the filter longitudinal extension 70 is arranged, especially completely arranged, between the operating handle 34 and the tool 6 with respect to the longitudinal direction 50. The filter longitudinal extension 70 extends between the first contact plane B1 and the second contact plane B2, especially from the first contact plane B1 to the second contact plane B2. The area of ​​the filter longitudinal extension 70 extends between the first contact plane B1 and the second contact plane B2, especially from the first contact plane B1 to the second contact plane B2. The area of ​​the filter longitudinal extension 70 is the entire space between the two contact planes B1 and B2.

[0128] The filter longitudinal extension 70 of the air filter member 12 is located between the rear region 63 of the work tool 1 and the front region 64 of the work tool 1 with respect to the longitudinal direction 50. The rear region 63 of the work tool 1 extends from the rear end 2 of the work tool 1 to the air filter member 12, in particular to the filter longitudinal extension 70 of the air filter member 12, in particular to the second contact plane B2 with respect to the longitudinal direction 50. The front region 64 of the work tool 1 extends from the air filter member 12, in particular from the filter longitudinal extension 70 of the air filter member 12, in particular from the first contact plane B1 to the front end 3 of the work tool 1 with respect to the longitudinal direction 50. In the embodiment, the operating handle 34 is arranged in the rear region 63. However, it can also be provided that the operating handle is only partially or not even arranged in the rear region 63. For example, this can be the case in a pruning saw. In the embodiment, the tool 6 is at least partially, in particular almost completely, arranged in the front region 64. The air filter element 12, in particular its filter longitudinal extension 70, is located in front of the rear region 63 with respect to the longitudinal direction 50. The air filter element 12, in particular its filter longitudinal extension 70, is located in front of the front region 64 with respect to the longitudinal direction 50, in particular behind the first contact plane B1.

[0129] The basic housing 38 has a basic longitudinal extension 53 in the longitudinal direction 50. The basic longitudinal extension 50 extends in the longitudinal direction 50 from the rear end 2 of the work tool 1 to an end point 73 of the basic housing 38. The end point 73 delimits the basic housing 38 in the longitudinal direction 50. An imaginary first plane E1 extending perpendicularly to the tool plane E is tangential to the longitudinal end of the basic housing 38 facing away from the rear end 2 of the work tool 1 at the end point 73. An imaginary second plane E2 extending perpendicularly to the tool plane E is tangential to the rear end 2 of the work tool 1 at the rear end 2. The basic longitudinal extension 53 extends from the second plane E2 facing the rear end 2 to the first plane E1 facing the end point 73. The space between the first plane E1 and the second plane E2 is referred to as the region of the basic longitudinal extension 53.

[0130] The rear region 63 is a space located between the second contact plane B2 and the second plane E2. The front region 64 is a space located between the first contact plane B1 and the first plane E1.

[0131] The filter length l1 of the filter longitudinal extension 70 measured in the longitudinal direction 50 is at least 20%, in particular at least 30%, of the basic length l2 of the basic longitudinal extension 53 measured in the longitudinal direction 50. The filter length l1 is at most 60%, in particular at most 50% of the basic length l2.

[0132] The filter longitudinal extension 70 has a rear distance l3 of at least 30%, in particular at least 40%, of the basic length l2 measured in the longitudinal direction 50 from the starting point of the basic longitudinal extension 53, in particular from the rear end 2. The air filter element 12 has a rear distance l3 of at least 30%, in particular at least 40%, of the basic length l2 measured in the longitudinal direction 50 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 of at least 10%, in particular at least 15%, of the basic length l2 measured in the longitudinal direction 50 from the end point of the basic longitudinal extension 53, in particular from the end point 38 of the basic housing 38. The air filter element 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 from the end point of the basic longitudinal extension 53, in particular from the end point 73 of the basic housing 38.

[0133] The filter longitudinal extension 70 has a rear distance l3 of at most 60%, in particular at most 50%, of the basic length l2 measured in the longitudinal direction 50 from the starting point of the basic longitudinal extension 53, in particular from the rear end 2. The air filter element 12 has a rear distance l3 of at most 60%, in particular at most 50%, of the basic length l2 measured in the longitudinal direction 50 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 of at most 40%, in particular at most 20%, of the basic length l2 measured in the longitudinal direction 50 from the end point of the basic longitudinal extension 53, in particular from the end point 73 of the basic housing 38. The air filter element 12 has a front distance l4 of at most 40%, in particular at most 20%, of the basic length l2 measured in the longitudinal direction 50 from the end point of the basic longitudinal extension 53, in particular from the end point 73 of the basic housing 38.

[0134] The base length l2 corresponds to the distance between the first plane E1 and the second plane 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 plane E2 and the second contact plane B2. The front distance l4 corresponds to the distance between the first contact plane B1 and the first plane E1.

[0135] A region of the air filter element 12 extends in the longitudinal direction 50 over a filter longitudinal extension 70 .

[0136] Figure 4 An imaginary tangential plane T is shown by way of example for all embodiments. Figure 4 The situation for all embodiments is schematically shown in the diagram in FIG. Figure 4 The description of applies to all embodiments. Figure 4 The reference numerals from all the embodiments are used. Figure 4 and three Each of the embodiments is associated with Figure 4 is based on Figure 1 In the embodiment of FIG. 1 , the interior space 39 is located directly behind the filter element 12. If Figure 4 is based on Figure 2a In the embodiment of the present invention, the working tool 1 is Figure 4 There is no filter cover 13 and no inlet opening 4 , but rather a lateral inlet opening 62 .

[0137] For all exemplary embodiments, the tangential plane T runs perpendicularly to the horizontal plane in the resting position of the power tool 1 .

[0138] The tangential plane T is tangential only to the first side surface 21 in the region of the filter longitudinal extension 70. The tangential plane T is only in contact with the first side surface 21, especially the outer side of the first side surface 21, in the region of the filter longitudinal extension 70. The tangential plane T does not intersect with the first side surface 21 in the region of the filter longitudinal extension 70. The tangential plane T is only tangential to the housing 5 of the work tool 1 in the region of the filter longitudinal extension 70. The tangential plane T is only tangential to the outer side of the housing 5 of the work tool 1 in the region of the filter longitudinal extension 70. The tangential plane T is only tangential to the outer wall 10 in the region of the filter longitudinal extension 70. It can be arranged that the tangential plane T intersects with the work tool 1, especially the first side surface 21, especially the housing 5, especially the outer wall 10 in the region outside the filter longitudinal extension 70, especially in the front region 63 and / or in the rear region 63.

[0139] In the region of the filter longitudinal extension 70 , the tangential plane T is arranged on the first side 46 of the tool plane E. The tangential plane T is tangential to the first side surface 21 on the first side 46 of the tool plane E in the region of the filter longitudinal extension 70 .

[0140] The tangential plane T intersects with the tool plane E. The tangential plane T intersects with the tool plane E in the region before the air filter component 12 with respect to the longitudinal direction 50, in particular in the region before the filter longitudinal extension 70 with respect to the longitudinal direction 50, in particular in the front region 64, in particular in the region before the front region 64 with respect to the longitudinal direction 50. When viewed in the longitudinal direction 50, the intersection line of the tangential plane T with the tool plane E is located before the air filter component 12, in particular before the filter longitudinal extension 70, in particular before the first contact plane B1. In the region after the air filter component 12 with respect to the longitudinal direction 50, the tangential plane T does not intersect with the tool plane E.

[0141] The filter longitudinal extension 54 of air filter member 12 has a front half 71 and a rear half 72. The front half 71 of filter longitudinal extension 70 is arranged before the rear half 72 of filter longitudinal extension 70 with respect to longitudinal direction 50. The rear half 72 of filter longitudinal extension 70 is arranged closer to operating handle 34 than the front half 71 of filter longitudinal extension 70 with respect to longitudinal direction 50. The front half 71 of filter longitudinal extension 70 is arranged closer to tool 6 with respect to longitudinal direction 50 than the rear half 72 of filter longitudinal extension 70. The front half 71 faces tool 6. The rear half 72 faces operating handle 34. The rear half 72 and the front half 71 are measured equally large in longitudinal direction 50. Half plane H extends perpendicular to longitudinal direction 50. Half plane H divides the space between first contact plane B1 and second contact plane B2 into two equally large halves. Half plane H is located between first contact plane B1 and second contact plane B2 in the middle with respect to longitudinal direction 50. The rear half 72 is located between the second contact plane B2 and the half plane H. The front half 71 is located between the half plane H and the first contact plane B1. The area of ​​the rear half 72 corresponds to the space between the second contact plane B2 and the half plane H. The area of ​​the front half 71 corresponds to the space between the half plane H and the first contact plane B1.

[0142] The tangential plane T is tangential to the first side 21 of the work tool 1 in the region of the filter longitudinal extension 70 only in the rear half 72, in particular only in the region of the rear half 72. The tangential plane T is only in contact with the first side 21, in particular the outer side of the first side 21, in the region of the rear half 72 of the filter longitudinal extension 70. The tangential plane T does not intersect the first side 21 in the rear half 72. The tangential plane T is tangential to the housing 5 of the work tool 1 in the region of the filter longitudinal extension 70 only in the region of the rear half 72 of the filter longitudinal extension 70. The tangential plane T is tangential to the outer side of the housing 5 of the work tool 1 in the region of the filter longitudinal extension 70 only in the region of the rear half 72 of the filter longitudinal extension 70. The tangential plane T is tangential to the outer wall 10 in the region of the filter longitudinal extension 70 only in the region of the rear half 72 of the filter longitudinal extension 70. The tangential plane T does not intersect the first side surface 21 of the work tool 1, in particular the housing 5 of the work tool 1, in particular the outer side, in particular the outer wall 10 of the housing 5 of the work tool 1, in the region of the front half 71 of the filter longitudinal extension 70. The tangential plane T does not intersect the first side surface 21, in particular the housing 5 of the work tool 1, in particular the outer side, in particular the outer wall 10 of the housing 5 of the work tool 1, in the region of the front half 71 of the filter longitudinal extension 70. The tangential plane T is tangential to the first side surface 21 in the region of the entry space 24, in particular in the region of the longitudinal extension 54 of the entry space 24, only in the region of the rear half of the region of the entry space 24 with respect to the longitudinal direction 50.

[0143] It can be provided that the tangential plane T intersects the power tool 1 , in particular the first side 21 , in particular the housing 5 , in particular the outer wall 10 , in a region outside the filter longitudinal extension 70 , in particular in the front region 64 and / or in the rear region 63 .

[0144] The filter longitudinal extension 70 divides the entire space into three sections. In the middle section, the filter longitudinal extension 70 is located between the first contact plane B1 and the second contact plane B2. The rear section is adjacent to the second contact plane B2. The rear end 2 is located in the rear section. The front section is adjacent to the first contact plane B1. The front end 3 of the working tool 1 is located in the front section. The tangential plane T intersects with the tool plane E in the front section.

[0145] As in Figure 4 As shown in , the plane spacings e1, e2 of the tangential plane T measured perpendicular to the tool plane E decrease in the longitudinal direction 5. The plane spacings e1, e2 are not the spacings of the planes in the geometric sense, but the spacings between individual points or straight lines located within the two planes. The first plane spacing e1 is measured in the region of the second contact plane B2. The second plane spacing e2 is measured in the region of the bow handle 27, in particular in the region of the first contact plane B1. The second plane spacing e2 is smaller than the first plane spacing e1.

[0146] The tangential plane T and the tool plane E enclose an angle α. Angle α is measured in an angle range in which the air filter component 12 is also located. Angle α is a minimum of 1°, a minimum of 3° in this embodiment. Angle α is a maximum of 45°, a maximum of 20° in this embodiment. The air filter component 12 is completely arranged in the corresponding angle range.

[0147] As in Figure 4 , the outer side of the first side 21 has an outer side spacing w1, w2 measured perpendicular to the tool plane E from the tool plane E. The outer side spacing w1, w2 is not a spacing in a geometric sense, but the spacing of a single point on the outer side of the outer side of the first side 21 from the tool plane E. In the area of ​​the air filter component 12, especially in the area of ​​the inlet space 24, the outer side spacing w1, w2 decreases in the longitudinal direction 50.

[0148] The area of ​​the entry space 24 is the area in which the entry space 24 extends with respect to the longitudinal direction 50. The longitudinal extension 54 of the entry space 24 extends in the longitudinal direction 50 from the frontmost point of the entry space 24 to the rearmost point of the entry space 24. The area of ​​the entry space 24 extends in the longitudinal direction 50 from the frontmost point of the entry space 24 to the rearmost point of the entry space 24. The longitudinal extension 54 of the entry space 24 is also referred to as the area of ​​the entry space 24. The area of ​​the entry space 24 has a front half with respect to the longitudinal direction 50 and a rear half with respect to the longitudinal direction 50.

[0149] The first outer spacing w1 is measured in the area of ​​the handle end 51 of the air filter component 12, especially in the area of ​​the second contact plane B1. The second outer spacing w2 is measured in the area of ​​the tool end 52, especially in the area of ​​the first contact plane B1, especially in the area of ​​the bow handle 27. The second outer spacing w2 is smaller than the first outer spacing w1.

[0150] The bow handle 27 has an arch section 30. The arch section 30 is located above the air filter component 12 in a direction perpendicular to the tool plane E. The arch section 12 is located in the region of the filter longitudinal extension 70. In all embodiments, the arch section 30 extends substantially, especially just in a direction parallel to the tool plane E. In all embodiments, the arch section 30 extends transversely, especially perpendicularly to the longitudinal direction 50. The arch section 30 is especially completely straight. Suitably, the arch handle 27 has almost no bending about the upward direction 49 in the region of the arch section 30. The arch section 30 has the shape of a straight tube. The arch section 30 extends approximately parallel to the tool plane E. The outer spacing w1, w2 is reduced in the longitudinal direction 50 from the handle end 51 of the air filter component 12 until the arch section 30, especially until the tool end 52 of the air filter component 12. The outer spacing w1, w2 is smallest in the region of the arcuate section 30 of the arcuate handle 27, in particular in the region of the tool end 52 of the air filter element 12, with respect to the longitudinal direction 50. In a plan view from above in a direction perpendicular to the horizontal plane, looking at the work tool 1 in the placed position, the work tool 1, in particular the housing 5 of the work tool 1, is wedge-shaped at least in the region of the air filter element 12, in particular in the region of the filter longitudinal extension 70.

[0151] The outer side of the first side 21 has a spacing area. The spacing area is located in the area of ​​the longitudinal extension 70 of the filter, in particular in the front half 71. The spacing area is located below the arcuate section 30 in a direction perpendicular to the tool plane E. The spacing area is located below the arcuate section 30 only in a direction perpendicular to the tool plane E. The arch handle 27 has an arched protrusion b in the arched section 30 that exceeds the spacing area. The arched protrusion b is the distance between the arched section 30 and the outer side of the first side 21 in a direction perpendicular to the tool plane E. Here, the distance is a geometric distance. The arched protrusion describes the minimum distance between the arched section 30 and the spacing area measured in a direction perpendicular to the tool plane E. The arched protrusion b is the distance that the arched section 30 has in a direction perpendicular to the tool plane E from the first side 21, in particular from the housing 5 of the work tool 1, in particular from the spacing area. The arched protrusion b is also called the arched distance.

[0152] The arched handle 27 has in the arched section 30 a distance s between the center of gravity and the center of mass 40 of the work tool 1 , measured perpendicularly to the tool plane E. This also applies to Figure 4 . The arched protrusion b is 20% to 60%, in particular 30% to 50%, in this embodiment 35% to 45% of the center-of-gravity distance s. In this embodiment, the center-of-gravity distance s is 9 cm to 15 cm, in particular 11 cm to 13 cm. In all embodiments, the arched handle 24 has the same center-of-gravity distance s throughout the arched section 30. In the embodiment, the arched handle 24 has the same arched protrusion b throughout the arched section 30.

[0153] As in Figure 3 As shown in the figure, the base body 37, in particular the basic 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 placement position. The work tool 1 comprises a brake lever 43. The brake lever 43 is pivotably supported on the base body 37, in particular on the housing 5, in particular on the basic housing 38. The brake lever 43 is not a component of the base body 37, in particular not on the housing 5, in particular not on the basic housing 38. The bow handle 27 is not a component of the base body 37, in particular not on the housing 5, in particular not on the basic housing 38. The bow section 30 extends in the same direction as the total height h over the bow section length c. The bow section length c is 10% to 60%, in particular 20% to 50%, in particular 30% to 40% of the total height h. In the placement position, the bow section 30 has a distance from the horizontal plane measured perpendicular to the horizontal plane of at least 10% of the total height h of the basic housing 38. In the placed position, the segment 30 has a distance from the horizontal plane of at most 40% of the total height h of the basic housing 38 , measured perpendicularly to the horizontal plane.

[0154] Over at least 10%, in particular at least 20%, in this exemplary embodiment at least 25% of the total height h, the arcuate section 30 has the same arcuate projection b, in particular the same distance s between the centers of gravity.

[0155] As in Figure 1 As shown in FIG. 1 , the work tool 1 comprises a filter cover 13. In all embodiments, except in the embodiment according to Figure 2a (as well as Figure 4 , if it involves Figure 2a In an embodiment of the embodiment of FIG. 1 , the work tool 1 comprises a filter cover 13 .

[0156] In accordance with Figure 2a In the embodiment according to Figure 2a In the embodiment of the present invention, the air filter component 12 forms the first side surface 21, in particular the outer side of the first side surface 21. From this outer side, the cooling air directly reaches the air filter component 12 in a direction transverse to, in particular perpendicular to, the tool plane E. The air filter component 12 is part of the outer wall 10, in particular the outer side of the outer wall 10.

[0157] In the remaining embodiments, the filter cover 13 is arranged on the base body 37 of the power tool 1. The filter cover 13 is designed separately from the base body 37 of the power tool 1. The filter cover 13 is fastened 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 but Figure 2a In all embodiments except for . In these embodiments, the inlet opening 4 is constructed in the filter cover 13. However, it can also be arranged that the inlet opening 4 is constructed in the basic housing 38 of the working tool 1. Figure 2a The lower inlet opening 11 is formed in the filter cover 13. However, it can also be arranged that the lower inlet opening 11 is formed in the base housing 38 of the handheld working tool 1. Figure 3 and Figure 4 and Fig.11 and Fig.12 As shown in FIG. 1 , the access space 24 is limited by the filter cover 13. The filter cover 13 forms a part of the first side surface 21, in particular the outer side of the first side surface 21. The filter cover 13 forms a part of the outer wall 10.

[0158] In the embodiments (except Figure 2a The air filter member 12 is arranged between the base housing 38 and the filter cover 13. The filter cover 13 is used to cover the opening 41 of the base housing 38. The filter cover 13 is used to guide cooling air. The filter cover 13 is used to support the air filter member 12.

[0159] As in Figure 2 As shown in FIG, the filter cover 13 can be fastened to the base housing 38 of the power tool 1 by a single fastening element 15. The filter cover 13 can be fastened to the base housing 38 by a single, central fastening element 15. Figure 2 As shown in FIG. 1 , the fastening element 15 is arranged approximately in the center of the filter cover 13 in a side view of the work tool 1 in a direction perpendicular to the tool plane E. In this side view, the fastening element 15 is arranged approximately in the area of ​​the center of gravity of the filter cover 13. It can also be provided that the fastening element 15 is arranged exactly in the center of gravity of the filter cover 13. In the embodiment (except Figure 2a The fastening element 15 is a screw. However, the fastening element can also be designed in the form of a rotatable bayonet lock or other alternatives. The fastening element 15 can be screwed into the base body 37 through the filter cover 13. The screwing direction extends in a direction transverse to, in particular perpendicular to, the tool plane E.

[0160] Air filter member 12 (except according to Figure 2a In all embodiments except for the embodiment of the present invention, the air filter element 12 is arranged between the filter cover 13 and the base housing 38. The air filter element 12 is held with clearance between the filter cover 13 and the base body 37 of the work tool 1. The fastening element 15 fastens the filter cover 13 to the base body 37 in such a way that a holding space 57 ( Fig.13 and Fig.13a ). The air filter component 12 is held in the holding space 57. The air filter component 12 has the gap in a direction transverse to, in particular perpendicular to, the longitudinal direction 50. The air filter component 12 has the gap in a direction transverse to, in particular perpendicular to, the tool plane E.

[0161] In the region of the fastening element 15, a first stop region 58 for the air filter component 12 is arranged at the base body 37. In the region of the fastening element 15, a second stop region 59 for the air filter component 12 is arranged at the filter cover 13. The air filter component 12 is held between the first stop region 58 and the second stop region 59 with clearance in the direction from the first stop region 58 to the second stop region 59. The holding space 57 is constructed between the first stop region 58 and the second stop region 59. In this embodiment, the first stop region 58 is opposite to the second stop region 59 in a direction transverse to, especially perpendicular to, the tool plane E. The air filter component 12 is held between the first stop region 58 and the second stop region 59 with clearance in a direction transverse to, especially perpendicular to, the tool plane E. The first stop region 58 and the second stop region 59 are arranged with a spacing d measured in a direction transverse to, especially perpendicular to, the tool plane E. The holding space 57 has a height approximately corresponding to the spacing d. The air filter component 12 extends in the region of the fastening element 15 in a direction transverse to, in particular perpendicular to, the tool plane E, over at least 80%, in this embodiment at least 90%, of the spacing d. The air filter component 12 extends in the region of the fastening element 15 in a direction transverse to, in particular perpendicular to, the tool plane E, over at most 98%, in this embodiment at most 95%, of the spacing d.

[0162] As in Fig.13 and in Fig.13a As shown in FIG. 1 , the air filter component 12 is abutted against the substrate 38 (not in accordance with Figure 2a In the embodiment of the present invention, the air filter component 12 has a plug-in groove 60 that surrounds the direction perpendicular to the tool plane E. The base body 38 has an end wall 61 that surrounds the direction perpendicular to the tool plane E. The end wall 61 has an outer side, an inner side and an end side. The plug-in groove 60 has a groove side wall. The air filter component 12 is plugged into the end wall 61 using the plug-in groove 60. The plug-in groove 60 wraps around the end wall 61. The end wall 61 corresponds to the plug-in groove 60. The plug-in groove 60 is abutted against the outer side and the inner side of the end wall 61 using the groove side wall. There is a spacing between the end side of the end wall 61 and the groove bottom of the plug-in groove 60. As a result, the air filter component 12 can be manufactured with large manufacturing tolerances. As a result, the filter cover 13 can be abutted against the basic housing 38 without gaps in a hood-like manner, because the filter cover 13 can be pressed against the base body 37 without problems. Here, the groove bottom and the end side can be closer, and they do not touch. Since the groove side walls bear against the outside and inside of the end wall 61, the air filter component 12 is connected to the base body 37 in an airtight manner. With respect to a direction transversely, in particular perpendicularly, to the tool plane E, there is a gap between the end wall 61 and the insertion groove 60.

[0163] The access space 24 is arranged at the first side 21 (except Figure 2aThe inlet opening 4 is arranged in the first side 21 of the working tool 1. The filter cover 13 is a component of the first side 21 of the working tool 1. Figure 4 As shown in , in the set-down position of the power tool 1 , the filter cover 13 is essentially wedge-shaped in a view perpendicular to a horizontal plane, in particular in a view perpendicular to the base 17 .

[0164] In the embodiments (except Figure 2a 13 ), the inlet space 24 is at least partially limited by the filter cover 13. The inlet space 24 is constructed between the filter cover 13 and the air filter component 12. The filter cover 13 is basically hood-shaped. At its end facing the rear end 3 of the work tool 1, the filter cover 13 has an inlet opening 4. At the side of the filter cover 13 facing the opening 41, the filter cover 13 has a contact surface for contacting with the basic housing 38 of the base body 37 of the hand-held work tool 1. In particular, the contact surface is in contact with the basic housing 38. Advantageously, the contact surface of the filter cover 13 surrounds the opening 41 in a closed manner. The contact surface is in contact with the basic housing 38 in a sealing manner. The inlet opening 4 completely penetrates the filter cover 13. The inlet opening 4 is limited by the material of the filter cover 13 on all sides.

[0165] The filter cover 13 limits the working tool 1 to the outside. The filter cover 13 is a component of the housing 5. The filter cover 13 has a top, which forms part of the first side 21 of the working tool 1 located on the outside. The top limits the filter cover 13 in a direction transverse to, in particular perpendicular to, the tool plane E. The top has no opening for cooling air to enter the working tool 1. The filter cover 13 has side walls. The side walls and the top limit the access space 24. The access opening 4 is arranged in the side walls of the filter cover 13. The top of the filter cover 13 is supported on the base housing 38 via the side walls.

[0166] The filter cover 13 has a side view of a first side 46 perpendicular to the tool plane E. Figure 2 The cover outer contour 18 is shown in FIG. Figure 1 and Figure 2, the filter outer contour 28, the filter surface 29, the cover outer contour 18, the cover surface 19, the inlet space 24 and the opening 41 are schematically drawn with the same dotted lines. In reality, however, the cover outer contour 18 is larger than the filter outer contour 28. The cover outer contour 18 completely surrounds the inlet space 24. The cover outer contour 18 completely surrounds the opening 41 of the basic housing 38. In the projection of the cover outer contour 18 onto the tool plane E in a direction perpendicular to the tool plane E, the cover outer contour 18 delimits the imaginary cover surface 19 in the tool plane E. In a side view of a first side 46 perpendicular to the tool plane E, the filter cover 13 has no openings for the inlet of cooling air into the work tool 1 within the cover outer contour 18 on at least 85%, in particular at least 90%, in this embodiment at least 95%. The imaginary projection of the filter cover 13 onto the tool plane E in a direction perpendicular to the tool plane E within the cover outer contour 18 projected in the same manner onto the tool plane E has no openings for the inlet of cooling air into the work tool 1 over at least 85%, in particular at least 90%, in this exemplary embodiment at least 95%, of the cover surface 19. The term opening is also to be understood in conjunction with the filter cover 13 as defined above. Here, the opening is a portion of the through-opening visible in a view of the first side 46 perpendicular to the tool plane E.

[0167] In all embodiments, a battery pack (not shown) is provided to supply energy to the motor 7, which is designed as an electric motor. The handheld working tool 1 is a battery-operated working tool. It can also be provided that batteries, in particular replaceable batteries, are used for energy supply. The following description of the battery pack also applies to the batteries. Figure 2 and Figure 4 As shown in FIG. 4 , the housing 5 , in particular the base housing 38 , has a receiving well 22 for the battery pack. The receiving well 22 has a receiving opening 23 . The battery pack can be inserted into the receiving well 22 through the receiving opening 23 . The battery pack can be inserted into the receiving well 22 in an insertion direction 48 .

[0168] As from Figures 2 to 4 As can be seen in the figure, the first side 21 has no receiving opening 23 for the receiving well of the battery pack. The receiving opening 23 for the receiving well 22 of the battery pack extends only in the housing 5, in particular in the housing cover 20 of the base housing 38. The insertion direction 48 runs parallel to the tool plane E. The receiving opening 23 surrounds the insertion direction 48 in a closed manner. The receiving opening 23 has an edge surrounding the insertion direction 48 in a closed manner. When the battery pack is inserted into the receiving well 22, the battery pack is inserted into the receiving well 22 essentially in the direction opposite to the upward direction 49 downward through the receiving opening 23.

[0169] The receiving well 22 is arranged in the region of the filter longitudinal extension 70 with respect to the longitudinal direction 50, in particular in the region of the rear half 72 of the filter longitudinal extension 70, as shown in FIG. Figure 4 The foregoing is shown by way of example for all embodiments.

[0170] The imaginary projection of the air filter member 12 on the tool plane E in the direction perpendicular to the tool plane E and the imaginary projection of the receiving well 22 on the tool plane E in the direction perpendicular to the tool plane E overlap in the tool plane E. Figure 2 As shown in the figure for all exemplary embodiments, the receiving well 22 has a battery outer contour 65 in an imaginary projection 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. Figure 2 The accumulator surface 66 is schematically drawn in with a dashed line in FIG.

[0171] As in Figure 4 For all embodiments shown in the figure, the receiving well 22 has a depth t1 measured in the longitudinal direction 50 and a width t2 measured perpendicularly 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 a direction perpendicular to the tool plane E. The width t2 of the receiving well 22 is at least 50%, in particular at least 60%, of the maximum width bm of the base body 37 of the work tool 1. The base body 37 of the work tool 1 has a maximum width bm in the rear half 72 of the filter longitudinal extension 70 of the air filter component 12.

[0172] The receiving shaft 22 is arranged in the region of a rear half 72 of the filter longitudinal extension 70 . The receiving shaft 22 is arranged in the rear half of the inlet space 24 with respect to the longitudinal direction 50 .

[0173] The position of the center of mass 40 of the power tool 1 is determined by the inserted battery. The position of the center of mass 40 of the power tool 1 is determined by the inserted battery.

[0174] The cooling air is sucked into the power tool 1 by a blower of the power tool 1 (not shown in the figure) and guided along the flow path 26. Figure 1 , Figure 3 and Figure 4 The flow path 26 is schematically indicated in dashed lines in FIG. 2 . The cooling air enters the work tool 1 through the inlet opening 4 (except for the Figure 2a In all embodiments except Figure 2a (as well as Figure 4 , if it is related to Figure 2a In the embodiment of the invention (see FIG. 5 ), the cooling air initially enters the work tool 1 through the air filter element 12 . Subsequently, the cooling air reaches the clean air region 14 through the lateral inlet opening 62 .

[0175] In the remaining embodiments (except Figure 2a ), the cooling air flows through the opening 4 in the direction of the longitudinal direction 50. Through the inlet opening 4, the cooling air directly enters the inlet space 24 formed by the filter cover 13 and the air filter component 12. In the inlet space 24, the cooling air flows along the air filter component 12, especially along the filter surface in the direction from the rear end 3 to the front end 2. Here, the cooling air passes through the air filter component 12 and enters the clean air space 14 through the opening 41 in the basic housing 38 of the matrix 37. When flowing along the air filter component 12, the volume of the cooling air in the inlet space 24 decreases along the longitudinal direction 50, because more and more cooling air leaves the inlet space 24 through the air filter component 12 and enters the clean air space 14. The area of ​​the flow cross section 31, 32 is also reduced in the longitudinal direction 50 to the same extent. As a result, the volume flow in the inlet space 24 can be kept basically constant. This ensures suitable flow conditions. The cooling air can be evenly distributed on the air filter component 12, especially on the filter surface, and invade the clean air space 14 with a similar volume flow rate on the entire surface of the air filter component 12. Here, the cooling air flows into the clean air space 14 in a direction transverse to the tool plane E. Here, the cooling air flows into the clean air space 14 in a direction transverse to the longitudinal direction 50. Then, in the clean air space 14 and the inner space 39, the cooling air flows along the flow path 26 in an upward direction 49 to the electronic components of the motor 7 configured as an electric motor. Here, the electronic components of the electric motor are cooled. Then, the cooling air flows against the upward direction 49 to the motor 7 configured as an electric motor. The cooling air leaves the work tool 1 through the opening in the bottom 17.

[0176] Due to the wedge-shaped design of the base body 37, the bow handle 27, in particular the bow section 30 of the bow handle 27, can be arranged in a space-saving manner and at a small distance from the center of mass 40 of the work tool 1. As a result, the lever and pivot forces for guiding and operating the work tool 1 by means of the bow handle 27 are small.

Claims

1. A hand-held working tool having a tool (6) and an operating handle (34), wherein: The work tool (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 work tool (1) comprises an air filter component (12) for filtering cooling air for cooling the motor (7), wherein the work tool (1) can be placed on a horizontal plane in a placement position, wherein the work tool (1) has a bottom (17) which faces the horizontal plane in the placement position, wherein the work tool (1) has a housing cover (20) arranged opposite the bottom (17), wherein the work tool (1) has a side surface (21) which connects the housing cover (20) and the bottom (17) to each other and extends along The working tool (1) is limited in a direction perpendicular to the tool plane (E) along the longitudinal direction (50), wherein the air filter component (12) is arranged on a side surface (21) of the working tool (1), wherein the air filter component (12) has a filter longitudinal extension (70) in the longitudinal direction (50), wherein an imaginary tangential plane (T) extending perpendicularly to the horizontal plane in the placement position is tangential to the side surface (21) only in the region of the filter longitudinal extension (70), wherein the tangential plane (T) intersects the tool plane (E), wherein the filter longitudinal extension (70) has a front half (71) and a rear half (72) with respect to the longitudinal direction (50), wherein the front half (71) is arranged in front of the rear half (72) with respect to the longitudinal direction (50), It is characterized in that the tangential plane (T) is tangent to the side surface (21) of the working tool (1) in the area of ​​the rear half (72) of the longitudinal extension (70) of the filter of the air filter component (12), and the tangential plane (T) intersects the tool plane (E) before the area of ​​the longitudinal extension (70) of the filter with respect to the longitudinal direction (50).

2. The handheld working tool according to claim 1, It is characterized in that The tangent plane (T) encloses an angle (α) of at least 1° with the tool plane (E), and / or the tangent plane (T) encloses an angle (α) of at most 45° with the tool plane (E).

3. The handheld working tool according to claim 1, It is characterized in that An outer distance (w1, w2) of the outer side of the side surface (21) from the tool plane (E), measured perpendicularly to the tool plane (E), decreases in the longitudinal direction (50) in the region of the filter longitudinal extension (70) of the air filter component (12).

4. The handheld working tool according to claim 1, It is characterized in that The work tool (1) comprises a bow handle (27) having a bow section (30) which is located in the region of the longitudinal extension (70) of the filter and above the side surface (21) in a direction perpendicular to the tool plane (E).

5. The handheld working tool according to claim 1, It is characterized in that The outer side distance (w1, w2) of the outer side of the side surface (21) from the tool plane (E) measured perpendicularly to the tool plane (E) decreases in the longitudinal direction (50) in the region of the longitudinal extension (70) of the filter of the air filter component (12), the working tool (1) comprises a bow handle (27), the bow handle (27) has a bow section (30), the bow section is located in the region of the longitudinal extension (70) of the filter and is located above the side surface (21) in a direction perpendicular to the tool plane (E), and the outer side distance (w1, w2) is smallest with respect to the longitudinal direction (50) in the region of the bow section (30) of the bow handle (24).

6. The handheld working tool according to claim 4, It is characterized in that The outer side of the side surface (21) has a spacing area, which is located below the arch section (30) in a direction perpendicular to the tool plane (E), and the arch handle (24) has an arch protrusion (b) in the arch section (30) that exceeds the spacing area measured perpendicular to the tool plane (E), and the arch handle (24) has a center of gravity distance (s) from the center of mass (40) of the work tool (1) in the arch section (30) measured perpendicular to the tool plane (E), and the arch protrusion (b) is 20% to 60% of the center of gravity distance (s).

7. The handheld working tool according to claim 1, It is characterized in that The work tool (1) comprises an inlet space (24) for cooling air to be filtered by the air filter element (12) to enter the work tool (1), the inlet space (24) being limited by the side surface (21), the inlet space (24) having an inlet opening (4), through which the cooling air can flow into the inlet space (24) from the outside in the longitudinal direction (50).

8. The handheld working tool according to claim 7, It is characterized in that The inlet space (24) is defined by the air filter member (12).

9. The handheld working tool according to claim 7, It is characterized in that The work tool (1) has a filter cover (13), and the access space (24) is limited by the filter cover (13).

10. The handheld working tool according to claim 9, It is characterized in that The filter cover (13) forms a part of the side surface (21).

11. The handheld working tool according to claim 9, It is characterized in that In the placement position, the filter cover (13) is substantially wedge-shaped in a view perpendicular to the horizontal plane.

12. The handheld working tool according to claim 1, It is characterized in that The filter cover (13) and / or the air filter component (12) can be fastened to a base body (37) by means of a single fastening element (15).

13. The handheld working tool according to claim 1, It is characterized in that The power tool (1) has a receiving shaft (22) for a battery pack, wherein the battery pack can be inserted into the receiving shaft (22) through a receiving opening (23) of the receiving shaft (22) in an insertion direction (48).

14. The handheld working tool according to claim 13, It is characterized in that The receiving well (22) is arranged in the region of the longitudinal extension (70) of the filter with respect to the longitudinal direction (50).

15. The handheld working tool according to claim 1, It is characterized in that The receiving well (22) has a depth (t1) measured in the longitudinal direction (50) and a width (t2) measured perpendicular to the tool plane (E), and the width (t2) is greater than the depth (t1).

16. A hand-held working tool having a tool (6) and an operating handle (34), wherein: The work tool (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 work tool (1) comprises an air filter component (12) and an inlet space (24) for cooling air to be filtered through the air filter component (12) to enter the work tool (1), wherein the inlet space (24) has at least one air inlet for the cooling air to enter the work tool (1) from the outside. ), wherein the air filter element (12) delimits the inlet space (24), wherein the inlet space (24) delimits a section (25) of a flow path (26) for cooling air, wherein the flow path (26) leads from the inlet opening (4) to the motor (7), and wherein the inlet space (24) has a flow cross section (31, 32) for the cooling air along the flow path (26) extending perpendicularly to the longitudinal direction (50), The invention is characterized in that the inlet opening (4) is arranged such that cooling air can flow through the inlet opening (4) in the longitudinal direction (50), the air filter component (12) limits the flow cross section (31, 32), and the flow cross section (31, 32) decreases in the longitudinal direction (50) of the work tool (1).

17. The handheld working tool according to claim 16, It is characterized in that The flow cross sections (31, 32) decrease continuously in the longitudinal direction (50).

18. The handheld working tool according to claim 16, It is characterized in that The cooling air flows in the inlet space (24) along the filter surface of the air filter component (12), and in particular, the cooling air gradually passes through the air filter component (12) and enters the clean air space (14) of the working tool (1) during the flow along the filter surface.

19. The handheld working tool according to claim 16, It is characterized in that The inlet space (24) is limited at least on one side by an outer wall (10) of the power tool (1), in particular the flow cross sections (31, 32) are limited by the outer wall (10) of the power tool (1).

20. The handheld working tool according to claim 16, It is characterized in that The work tool (1) has a bottom (17) which faces the horizontal plane in the placement position, the work tool (1) has a housing cover (20) arranged opposite the bottom (17), the work tool (1) has a side (21) which connects the housing cover (20) and the bottom (17) to each other and limits the work tool (1) along the longitudinal direction (50) in a direction perpendicular to the tool plane (E), and the access space (24), in particular the access opening (4), is arranged on the side (21) of the work tool (1).

Citation Information

Patent Citations

  • Motorized hand tool for sawing, cutting, trimming or the like

    DE202019104914U1