Handles and free-style cutters for hand-held work tools

Abstract

The invention relates to a handle for a handheld working tool and a free-type cutting machine. The handle (6, 7) for the handheld working tool has a rod (8) with a fixed end (9) to which the handle (6, 7) is fixed, and a free end (10). The handle (6, 7) has an outer side (28) which is arranged to at least partially abut against the palm (52) of a user (51). The handle (6, 7) has an inner side (29) opposite the outer side and a longitudinal axis (14). A thumb support surface (20) is arranged on the inner side of the handle (6, 7) and, in a side view perpendicular to the inner side (29), encloses an angle (β) of at least 20° and at most 70° with the longitudinal axis (14) at any point. The handle (6, 7) is particularly designed for a free-type cutting machine (1) with a guide tube (2). The handle is fixed to the guide tube (2) at a handle bar (43).

Description

Technical Field

[0001] The invention relates to a handle for a handheld working tool and a free-style cutting machine. Background Art

[0002] From EP 2 845 460 A1, a free-type cutting machine is known, on whose guide tube a handle is fixed, which carries two handles. One of the operating elements is arranged on the inner side of the handle, which carries the operating elements.

[0003] During operation, a guiding force for guiding the tool must be introduced via one or more handles. The force can be introduced in different directions. In order to harvest with a free-cutting machine, the tool must be moved back and forth. However, it may also be necessary for the tool to push or press into the workpiece. Summary of the invention

[0004] The object of the present invention is to create a handle for a handheld working tool with which the guiding forces can be introduced in an ergonomic and labor-saving manner. Another object of the present invention is to provide a free-cutting machine which enables ergonomic and labor-saving work.

[0005] This object is achieved in a handle for a hand-held work tool by a handle, wherein the handle has a shaft with a fixed end (to which the handle is fixed) and a free end, wherein the handle has an outer side, which is arranged to at least partially rest against the palm of a user, wherein the handle has an inner side opposite the outer side, wherein the handle has a longitudinal axis, wherein a thumb support surface is arranged on the inner side of the handle, which thumb support surface encloses an angle of at least 20° and at most 70° with the longitudinal axis at any point in a side view perpendicular to the inner side.

[0006] With respect to a free-style cutting machine, this object is achieved by a free-style cutting machine with a guide tube, wherein a tool unit is arranged at the end of the guide tube, wherein a handle rod is fixed to the guide tube, which handle rod carries a handle at each end, wherein each handle has a rod with a fixed end (the handle is fixed to the handle rod at the fixed end) and a free end, wherein each handle has a front side facing the tool unit and a rear side opposite, wherein the handles have inner sides facing each other and outer sides facing away from each other, wherein a thumb support surface is arranged on the inner side of at least one handle, which thumb support surface encloses an angle of at least 20° and a maximum of 70° with the longitudinal axis at any position in a side view perpendicular to the inner side.

[0007] It is provided that a thumb support surface is arranged on the inner side of the handle, which in a side view perpendicular to the inner side encloses an angle of at least 20° and up to 70° with the longitudinal axis of the handle at any point. Due to this inclination of the thumb support surface, an ergonomic hand posture is generated at the thumb. On the other hand, via the thumb support surface, forces can be introduced into the tool very well, especially when pushing and pressing a tool, such as a knife of a free-style cutter. The forces introduced by the operator when pushing and pressing the tool do not have to be applied only from the inner side of the hand, but can also be applied from the thumb. In this case, in particular, a force component can also be introduced in a labor-saving and ergonomic manner in the direction of the fixed end of the handle.

[0008] The thumb support surface is advantageously designed as the upper side of a protuberance arranged on the inner side of the rod. The thumb support surface advantageously projects laterally relative to the approximately straight extension of the inner side. Alternatively, the thumb support surface can be designed as the bottom of a depression introduced on the inner side. A combination of a protuberance and a depression can also be provided.

[0009] The thumb support surface is preferably a relatively flat surface. The thumb support surface is located between two planes extending parallel to each other. The spacing between the two planes is advantageously less than 3 mm, in particular less than 2 mm. The thumb support surface has a length of at least 2.5 cm and a width of at least 8 mm. The length and width of the thumb support surface here give the maximum length and the maximum width. In the area outside the two planes extending parallel to each other, the thumb support surface advantageously transitions to the inner side and the front side and / or the rear side of the handle with a matching curved portion. The thumb support surface can be a flat surface. However, it can also be arranged that the thumb support surface extends slightly curved. The radius of the curvature of the thumb support surface is preferably as large as possible in all directions. The curvature of the thumb support surface advantageously has a minimum radius, which is at least 10 mm, in particular at least 15 mm, advantageously at least 30 mm. The thumb support surface can extend in different curved forms in different directions.

[0010] The thumb support surface is advantageously arranged at a distance from the free end of the rod. In one embodiment variant, the thumb support surface therefore does not extend to the free end of the rod. The distance of the thumb support surface from the free end of the rod is advantageously at least 1 cm. This distance is provided in particular for handles that do not carry any operating elements. Preferably, a distance of the thumb support surface of at least 1 cm from the free end of the rod is provided for a left handle. For handles that carry at least one operating element, a smaller distance of the thumb support surface from the free end can be advantageous.

[0011] Advantageously, the thumb support surface transitions into the inner side of the handle together with the concave arch. In a cross-sectional plane parallel to the longitudinal axis of the handle and extending through the inner side, the thumb support surface and the longitudinal axis advantageously enclose such an angle: the angle is open toward the fixed end. The thumb support surface advantageously drops in the direction of the other hand of the user. The thumb support surface advantageously rises toward the longitudinal axis. Thus, the operator can place the thumb well on the thumb support surface in the lateral direction. The advancement in the longitudinal direction of the thumb support surface is not necessary. However, a slight rise of the thumb support surface toward the other hand or a slight drop toward the longitudinal axis can also be advantageous. The angle is advantageously 30° to 110°, in particular 60° to 90°. Preferably, the angle is less than 90°. The angle enclosed by the thumb support surface and the longitudinal axis can be varied over the length of the thumb support surface.

[0012] The handle advantageously has a receptacle at its fixed end for plugging the handle, for example, onto a handlebar. The longitudinal axis of the handle advantageously is the longitudinal center axis of the hollow receptacle. The longitudinal axis extends in the plugging direction of the handle. It can also be provided that the handle is embodied as thickened at the fixed end and at the free end, respectively, and that a handle section extends between them, which the operator can embrace with his fingers during operation. The longitudinal axis advantageously extends through the center of gravity of the handle section in a section plane adjacent to the thickened end.

[0013] It has been shown that working with a handheld work tool is less tiring for the operator if the hand position can be changed several times during the work. In order to be able to not only surround the rod but also to support the hand, it is provided that the rod forms a support surface for the user's hand with its free end. It is particularly preferred that the support surface transitions via a continuous circle into the rear side extending between the inner side and the outer side in the circumferential direction of the rod. Due to the continuous circle, the operator's hand can be continuously changed between different gripping positions, wherein the operator's hand can move along the circle from the rear side to the support surface and back. The circle is advantageously configured with a relatively large radius so that the user's hand can slide down without interference. In a side view of the outer side of the handle, the circle advantageously has a radius of at least 1.5 cm, in particular at least 2 cm, at any point.

[0014] The handle can be a handle that carries an operating element. Advantageously, the first operating element is arranged on the rod so that it can swing around a first swing axis and the second operating element is arranged so that it can swing around a second swing axis. The first operating element is advantageously configured to operate the drive motor, and the second operating element prevents the drive motor from being operated via the first operating element in an unoperated position. In an advantageous design, it can be provided that the second operating element mechanically locks the first operating element in its unoperated position. However, it can also be provided that the second operating element allows the first operating element to swing, but this swing does not lead to the operation of the drive motor in the unoperated position of the second operating element, for example by corresponding wiring (Beschaltung) of the switch operated by the operating element or by corresponding mechanical couplings.

[0015] Such an axis is advantageously considered as the longitudinal axis of the handle, which is located perpendicular to the first swivel axis and perpendicular to the second swivel axis. In the viewing direction in the direction of the longitudinal axis, the first swivel axis and the second swivel axis advantageously enclose an angle of less than 180°, in particular less than 120°. Particularly advantageously, the first and second swivel axes enclose an angle of approximately 90° in the viewing direction in the direction of the longitudinal axis of the handle. The two swivel axes are therefore not located parallel to each other, as is common for operating elements arranged on opposite sides of the handle. In a particularly preferred design, the first operating element is arranged on the front side of the handle and the second operating element is arranged on the outside of the handle. As a result, the second operating element can be operated with the palm of the user.

[0016] The second operating element advantageously has an operating section protruding from the rod in the non-operated state, the operating section having a first end close to the fixed end and a second end close to the free end of the rod. The second pivot axis is advantageously arranged closer to the first end of the operating section than to the second end of the operating section. Preferably, the pivot axis is closer to the fixed end than to the free end of the rod. As a result, the operating element performs its maximum movement at the end close to the free end of the rod. As a result, if the operator can only touch and operate the operating section at its second end due to the hand posture he chooses, for example, by supporting his hand on the support surface, then it is also possible to operate the second operating element reliably. The placement portion provided by the second operating element thus simplifies the operation of the work tool with different hand postures. Advantageously, the operating section of the second operating element does not protrude more than 3 mm beyond the outer contour of the rod at any position in the operated state of the second operating element. As a result, the second operating element can be pressed comfortably with the inner side of the hand. When changing the hand position at the handle, the operating section does not or only slightly interfere with the operator's hand movement.

[0017] Advantageously, the first operating element has an operating section protruding from the rod in the non-actuated state. The operating section of the first operating element advantageously has a first end close to the fixed end and a second end close to the free end of the rod. In an advantageous embodiment, the first pivot axis is arranged closer to the second end of the operating section of the first operating element than to the first end of the operating section of the first operating element.

[0018] Advantageously, the operating section of at least one operating element has a spacing of less than 7 cm relative to the free end of the rod. Thus, when the operator's hand is placed at the support section at the free end of the rod, the corresponding operating element can be grasped by the operator. Particularly advantageously, the operating sections of the two operating elements have a spacing of less than 7 cm relative to the free end of the rod. Thus, when the operator's hand is placed at the support section at the free end of the rod, the two operating elements can be manipulated by the operator. In order that the two operating elements can be grasped by the operator with different hand positions, it is advantageously provided that the operating section of the first operating element and the operating section of the second operating element overlap on the longitudinal section of the rod. The length of the longitudinal section of the rod measured in the direction of the longitudinal axis is advantageously at least 30%, especially at least 50% of the length measured in the same direction of the operating section of the first operating element. Particularly advantageously, the operating sections of the two operating elements overlap at least partially in the handle section of the rod. The handle section of the rod is advantageously a section located between the two thickened end regions of the rod.

[0019] The first operating element is advantageously arranged on a front side of the rod extending between the inner side and the outer side in the circumferential direction and provided for contact with a finger of a user. The second operating element is preferably arranged on the outer side.

[0020] In an advantageous design, the handle has a third operating element. The third operating element is preferably arranged on the inner side of the handle. The third operating element is particularly configured to be operated by the thumb of the operator. The first operating element is advantageously mainly configured to be operated by the index finger and / or middle finger of the operator. The third operating element has an operating position in which the third operating element begins to implement an operating stroke when it moves from an unoperated state to an operated state. It can be configured that an idle stroke for the third operating element is provided between the unoperated state and the operating position. However, it can also be configured that the operating position is consistent with the unoperated state of the operating element.

[0021] In the actuated position, the third operating element advantageously projects beyond the outer contour of the handle by more than a maximum of 1 mm in the viewing direction in the direction of the longitudinal axis toward the fixed end of the rod. In the viewing direction perpendicular to the thumb support surface, the third operating element is located in particular behind the outer contour of the handle, i.e., covered by the rod. This prevents unintentional actuation of the third operating element when the operator's hand is located on the support surface. In the non-actuated state, the third operating element advantageously projects beyond the contour of the rod on at least one side, in particular on its side facing the fixed end.

[0022] A thumb support surface arranged on the inner side of at least one handle, which in a side view perpendicular to the inner side encloses an angle of at least 20° and at most 70° with the longitudinal axis at any point, is particularly advantageously provided for a free-style cutting machine with a guide tube, wherein a tool unit is arranged at one end of the guide tube and wherein a handle rod is fixed to the guide tube, which handle rod carries a handle at each end.

[0023] By means of the thumb support surface on at least one of the handles, the movement for pushing and pressing the tool can be introduced in a well-complementary manner via the thumb support surface into the handle and there into the tool unit.

[0024] In a particularly advantageous embodiment, both handles of the free-cutting machine have thumb support surfaces on their inner sides. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Embodiments of the present invention are described below with reference to the accompanying drawings.

[0026] Figure 1 A schematic, perspective view showing an operator together with a free-style cutting machine,

[0027] Figure 2 Shows the Figure 1 A perspective view of a first handle of a freestyle cutting machine,

[0028] Figure 3 Shows the Figure 2 A side view of the outside of the handle,

[0029] Figure 4 Shows the direction Figure 3 The cross-sectional view of the handle is shown in the direction of line IV-IV.

[0030] Figure 5 Shows the direction Figure 3 The arrow V in the direction of the side view of the back side of the handle,

[0031] Figure 6 Shows the direction Figure 5 In the side view of the inner side of the handle in the direction of arrow VI,

[0032] Figure 7 Shows along the Figure 6 A partial cross-sectional view of the line VII-VII in FIG.

[0033] Figure 8 Shows along the Figure 6 A partial cross-sectional view of the line VIII-VIII in FIG.

[0034] Fig. 9 Shows the direction Figure 3 The direction of arrow IX-IX is on the side view of the front side of the handle,

[0035] Fig.10 A perspective, schematic illustration showing a thumb support surface of a handle,

[0036] Fig.11 A schematic diagram showing an actuation path of a third operating element of the handle,

[0037] Fig.12 shows a perspective view of the third operating element in a non-actuated state,

[0038] Fig.13 shows a perspective view of the third operating element in an actuated state,

[0039] Figures 14 to 18 A schematic diagram showing different possible hand positions on a first handle is shown,

[0040] Fig.19 A side view of the second handle is shown,

[0041] Fig. 20 Shows along the Fig.19 The line XX-XX in FIG. 1 passes through a cross-sectional view of the spherical support of the second handle,

[0042] Fig.21 and 22 A perspective view of a second handle is shown,

[0043] Fig.23 Shows the direction Fig.19 A side view of the rear side of the second handle in the direction of arrow XXIII,

[0044] Fig.24 Shows the direction Fig.23 In the side view of the outside of the handle in the direction of arrow XXIV,

[0045] Fig.25 Shows along the Fig.19 A cross-sectional view of a portion of the thumb support surface through line XXV-XXV in FIG.

[0046] Fig.26 A side view showing a handlebar of a freestyle cutting machine with two handles,

[0047] Fig. 27 Shows along the Fig.26 The line XXVII-XXVII in the cross-sectional view passes through the second left handle,

[0048] Fig.28 Shows along the Fig.26 Line XXVIII-XXVIII in the cross-sectional view passes through the first right handle. DETAILED DESCRIPTION

[0049] Figure 1 A user 51 is schematically shown, carrying a handheld work tool, namely a free-type cutter 1. The free-type cutter 1 has a guide tube 2. A tool unit 3, in the embodiment a tool head with a cutting tool 70, is arranged at one end 42 of the guide tube 2. A housing 4 is arranged at the other end 73 of the guide tube. In the embodiment, a schematically shown drive motor 26 is arranged in the housing 4. The drive motor 26 can be, for example, an electric motor, in particular an electric motor powered by a battery, or an internal combustion engine.

[0050] The handheld working tool may also be other handheld working tools, such as a blower. The handheld working tool may in particular be a working tool with a handle. The handheld working tool may in particular be a blower, in particular a back-carrying blower.

[0051] The operator 51 carries the free-type cutting machine 1 with the carrying belt 74. The weight of the free-type cutting machine 1 is at least partially, in particular largely, borne during operation via the carrying belt 74. The carrying belt 74 holds the free-type cutting machine 1 at the suspension point A. The free-type cutting machine 1 is advantageously suspended on the carrying belt 74 in such a way that the free-type cutting machine 1 is freely suspended on the carrying belt 74 in the operating state (i.e. a state in which the tool unit 3 is arranged further downward than the housing 4). Figure 1 Schematically, the center of gravity S and the weight F of the free-style cutting machine 1 are marked. The center of gravity S of the free-style cutting machine 1 is advantageously shifted in the direction of the tool unit 3 relative to the suspension point A. As a result, the free-style cutting machine 1 is suspended on the carrier belt 74 in such a way that the tool unit 3 is arranged further downward than the housing 4 of the free-style cutting machine 1.

[0052] A handle 5 is fixed to the guide tube 2 for guiding the free-cutting machine 1. During operation, the force used to push the tool forward is introduced via the handle 5. The forward movement can be, for example, a back-and-forth movement during harvesting or an up-and-down bouncing movement during chopping operation. The direction of movement during harvesting is Figure 1The double arrow M is used to indicate schematically the direction of movement during the chopping operation and the double arrow H is used to indicate the direction of movement during the chopping operation.

[0053] The handlebar grip 5 is a so-called bicycle handlebar. The handlebar grip 5 comprises a handlebar rod 43. The handlebar rod 43 preferably extends approximately transversely to the guide tube 2. A handle 6 or 7 is arranged at each end of the handlebar rod 43. The handles 6 and 7 have inner sides 29, which are arranged facing each other. The handles 6 and 7 have outer sides 28, which are located away from each other. The outer sides 28 of the handles 6 and 7 rest on the palm 52 of the user 51. The inner sides 29 are thus the sides of the handles 6 and 7 that are close to each other and the outer sides 28 are the sides of the handles 6 and 7 that are located away from each other.

[0054] Figures 2 to 18 A first handle 6 is shown, in the embodiment the right handle. Figures 19 to 25 A second handle 7 is shown, which in the exemplary embodiment forms the left handle of the free-hand cutter 1. The handles 6 and 7 can also be used in other hand-held working tools, in particular in blowers, sprayers and the like.

[0055] like Figure 2 As shown, the first handle 6 has a rod 8. The rod 8 has a fixed end 9 and a free end 10. In the normal working position, the free end 10 on the free-type cutter 2 points forward and upward. At the fixed end 9, a receptacle 44 is constructed in the embodiment, into which the handle rod 43 is inserted. The center axis of the receptacle 44 advantageously coincides with the longitudinal axis 14 of the handle 6. The rod 8 of the handle 6 is constructed in the embodiment by two half shells 71 and 72, which abut against each other in a partition plane parallel to the longitudinal axis 40. The first handle 6 has a front side 27, which extends between an outer side 28 and an inner side 29. The front side 27 is provided for abutting against the fingers of the user 51. In addition, the handle 2 has a rear side 30, which is Figure 5 2 and is arranged opposite the front side 27. In the usual working position, the rear side 30 is located in the free-type cutter facing the operator, and the front side 27 points in the direction of the tool unit 3.

[0056] In order to fix the handle 6, a fixing screw (not shown) is advantageously provided on the handle rod 43, which protrudes through a fixing opening 59 in the handle 6. The fixing screw also advantageously protrudes through an opening in the handle rod 43 and thereby fixes the position of the handle 6 relative to the handle rod 43. Figure 2 60 for fixing the nut. Figure 3 As shown, the opposite outer side 28 has a receptacle 61 for fastening a screw, which is screwed into a fastening nut on the opposite side of the handle 6 .

[0057] like Figure 2 As is also shown, a support surface 15 for the hand of a user 51 is formed at the free end 10 of the handle 6. The support surface 15 is circular in shape and is adapted in size to the inner surface of the hand of the user. Figure 2 As is also shown, the first handle 6 has a first operating element 11 and a third operating element 13 .

[0058] The second operating element 12, which is also arranged on the first handle 6, Figure 3 . The rod 8 forms the elongated base of the first handle 6, on which the operating elements 11, 12 and 13 are arranged. The first operating element 11 is advantageously designed for operating the drive motor 26. The first operating element 11 can be used to set the speed of the drive motor 26 and thus the speed of the tool. The second operating element 12 can advantageously prevent the drive motor 26 from being operated via the first operating element in the unoperated state, for example by locking the first operating element 11. The third operating element can be, for example, a stop switch. However, other functions of the operating elements 11, 12 and 13 can also be advantageous.

[0059] like Figure 3 As shown, the first operating element 11 protrudes from the rod 8 at the front side 27 with the operating section 23. The operating section 23 is the entire section of the first operating element 11, which protrudes from the rod 8 in the non-operated state of the first operating element 11. The first operating element 11 is arranged to be pivotable about a first pivot axis 21. The first pivot axis 21 is closer to the free end 10 of the handle 6 than the operating section 23. The operating section 23 of the first operating element 11 has a first end 24 and a second end 25. The first end 24 is closer to the fixed end 9 than the second end 25. The pivot axis 21 is closer to the second end 25 of the operating section 23 than the first end 24. The pivot axis 21 is closer to the free end 10 in the direction of the longitudinal axis 14 than the second end 25 of the operating section 23. The operating section 23 of the first operating element 11 has a length b measured in the direction of the longitudinal axis 14.

[0060] The second operating element 2 has an operating section 16, which protrudes from the rod 8. The operating section 16 is the entire section of the second operating element 12, which protrudes from the rod 8 in the non-actuated state of the second operating element 12. The operating section 16 has a length c measured in the direction of the longitudinal axis 14. The lengths b and c can be approximately the same size. In the embodiment, the length b is smaller than the length c.

[0061] The operating section 16 of the second operating element 12 has a first end 17 and a second end 18. The first end 17 is closer to the fixed end 9 than the second end 18. The two operating sections 16 and 23 are oriented in the direction of the longitudinal axis 14. The second operating section 12 is mounted so as to be pivotable about a pivot axis 22. The pivot axis 22 is closer to the first end 17 than the second end 18 of the operating section 16. In the embodiment, the first end 17 has a greater spacing relative to the fixed end 9 in the direction of the longitudinal axis 14 than the pivot axis 22. In the embodiment, the pivot axis 22 is located between the first end 17 and the fixed end 9 in the direction of the longitudinal axis 14.

[0062] The actuation sections 23 and 16 overlap in the longitudinal section 19 in the non-actuated state of the actuation elements 11 and 12. The longitudinal section 19, in which both the actuation section 23 and the actuation section 16 extend, has a length a measured in the direction of the longitudinal axis. The length a is advantageously at least 30% of the length b of the actuation section 23 of the first actuation element 11. Preferably, the length a is at least 50% of the length b.

[0063] The shaft 8 of the first handle 6 has a handle section 45. The handle section 45 has an elongated, roughly cylindrical shape. A thickened section 46 adjoins the handle section 45 in the direction of the fixed end 9. A thickened section 47 adjoins the handle section 45 in the direction of the free end 10. The length t of the handle section 45, which is measured in the direction of the longitudinal axis 14, is advantageously one quarter to three quarters of the total length u of the handle 6. The total length u is measured parallel to the longitudinal axis 14.

[0064] The handle 6 has a first half 48, which extends from the fixed end 9 by half the length u. The handle 6 also has a second half 49, which is connected to the first half 48 and protrudes as far as the free end 10. The second half 49 extends by half the length u. The handle section 45 is at least partially arranged in the first half 48. In the embodiment, the handle section 45 extends at least 60% of its length t in the first half 48. The handle section 45 also protrudes into the second half 49. In the embodiment, the overlapping area 19 is completely arranged in the second half 49. It can also be provided that the overlapping area 19 partially extends into the first half 48.

[0065] The contact surface 15 transitions into the rear side 30 via a rounding 32. The rounding 32 is convex and extends in a circular manner in the exemplary embodiment. The radius r of the rounding 32 in a side view of the outer side 28 (which is Figure 332) is at least 1.5 cm, in particular at least 2 cm, at each location. A radius r of at least 3 cm is considered particularly advantageous. The radius r can be varied in the extension of the circle 32. A uniform transition from the rear side 30 to the support surface 15 is achieved by the circle 32. The hand of the user 51 can slide well along the circle 32. Due to the circular shape of the circle 32, an approximately constant spacing relative to the opposite first operating element 11 can be maintained. This ensures that the user 51 can grasp the operating element 11 in any set hand posture.

[0066] The rod 8 has a spherical bearing 33. The spherical bearing 33 is advantageously arranged at the shaft section 45. Figure 3 As shown, the ball bearing 33 has a length k measured parallel to the longitudinal axis 14 . The length k is advantageously at least 2.5 cm, in particular at least 3.5 cm. In the exemplary embodiment, the ball bearing 33 extends up to the vicinity of the thickened section 46 .

[0067] Figure 4 A section through the handle 6 in the region of the spherical bearing 33 is shown. The section extends perpendicularly to the longitudinal axis 14. The spherical bearing 33 is formed as an outwardly protruding projection by the otherwise advantageously approximately circular cross-section of the handle section 45. In the exemplary embodiment, the spherical bearing 33 extends at the inner side 29 and the rear side 30. Its maximum radial extension comprises the spherical bearing 33 approximately in the region in which the inner side 29 and the rear side 30 adjoin one another. The spherical bearing 33 has a spherical bearing surface 36 which extends approximately flat. The spherical bearing surface 36 advantageously extends at the rear side 30. The spherical bearing 33 has a maximum distance o from the longitudinal axis 14. At Figure 4 The cross section in FIG. 1 extends in a region in which the spherical bearing 33 has a maximum distance o relative to the longitudinal axis 14. In the same cross-sectional plane, in which the maximum distance o is present, the handle 6 has a diameter p measured perpendicularly to the maximum distance o. The maximum distance o is advantageously greater than half the diameter p. The maximum distance o is advantageously at least 0.7 times, in particular at least 0.8 times, the diameter p of the rod 8.

[0068] like Figure 4As also shown, the pivot axes 21 and 22 of the operating elements 11 and 12 are located perpendicular to each other. The pivot axes 21 and 22 enclose an angle α that is advantageously less than 180°. The angle α is in particular less than 120°, preferably about 90°. In the embodiment, the pivot axes 21 and 22 open a coordinate system with the longitudinal axis 14. The longitudinal axis 14 defines the y direction of the coordinate system. The y axis points from the fixed end 9 to the free end 10. The pivot axis 21 of the first operating element 11 corresponds to the z axis and the pivot axis 22 of the second operating element 12 corresponds to the x axis. The x axis is oriented from the rear side 30 to the front side 27. The z axis is oriented from the inside 29 to the outside 28. The axes x, y and z form a right-hand system. The spherical bearing 33 extends in the negative z direction and the negative x direction. The spherical bearing surface 36 is inclined relative to the z direction by an angle δ that is advantageously less than 45°, in particular less than 30°, at any location. At the point where the greatest distance o from the longitudinal axis 14 is present, the spherical contact surface 36 has a distance v measured in the z direction which advantageously corresponds to at least 0.3 times the diameter p.

[0069] like Figure 5 and 6 As shown, the first handle 6 has a thumb surface 20. The thumb contact surface 20 extends on the inner side 29 in a thickened section 47. The thumb contact surface 20 has a width g, which is measured perpendicular to the longitudinal axis 14. The thumb contact surface 20 has a spacing i measured in the direction of the longitudinal axis 14 relative to the free end 10. The spacing i can be very small for the first handle 6. The thumb contact surface 20 can protrude as far as the free end 10.

[0070] like Figure 5 As shown, in the side view shown, the third operating element 13 is largely or completely covered in the direction of the x-axis toward the rear side 30. The third operating element 13 is at least partially located behind the thumb support surface 20 in this viewing direction. The third operating element 13 is covered by the cover 68. Figure 5 and 6 As shown, the third operating element 13 has a side portion 62 ( Figure 6 ). In the embodiment, the third operating element 13 is oriented approximately parallel to the thumb support surface 20. The side portion 62 extends obliquely to the longitudinal axis 14. A recess 64 is formed on the handle 6 near the side portion 62, which facilitates the manipulation of the third operating element 13 at the side portion 62. The third operating element 13 has a protrusion 63 at the side portion 62 relative to the recess 64. The protrusion 63 is advantageously at least 1 mm, in particular at least 2 mm. As a result, the operating element 13 can also be reliably manipulated at the side portion 62 using gloves. Figure 5As is also shown, the second operating element 12 has a distance e measured parallel to the longitudinal axis 14 relative to the free end 10 .

[0071] exist Figures 6 to 8 The orientation of the thumb support surface 20 is shown in FIG. Figure 6 As shown, the thumb support surface 20 is inclined at an angle β relative to the longitudinal axis 14 in the viewing direction toward the inner side 29, i.e., in the viewing direction in the direction of the z-axis. The angle β is at least 20° and at most 70° at any position of the thumb support surface 20. This, on the one hand, enables an ergonomic hand position. On the other hand, due to the orientation of the thumb support surface 20, forces can be introduced very well toward the tool unit 3 ( Figure 1 ), thereby creating a force ratio that is particularly beneficial for pushing and pressing tools.

[0072] exist Figure 6 In the side view shown in FIG. 2 , the thumb support surface 20 is preferably convexly curved. However, a flat or concavely curved design can also be advantageous. The thumb support surface 20 is located between two parallel planes 34 and 35. The planes 34 and 35 advantageously extend obliquely to the plane of the drawing. The planes 34 and 35 do not extend parallel to the axes x, y and z of the coordinate system of the handle 6. The planes 34 and 35 are therefore Figure 6 The thumb support surface 20 is advantageously designed in such a way that the distance h between the two planes 34 and 35 is less than 3 mm, in particular less than 2 mm. The width g of the thumb support surface 20 is advantageously at least 8 mm. The length f of the thumb support surface 20 (which is indicated in Figure 6 34 and 35. The length f and the width g are measured in the region between the planes 34 and 35. The surface section adjoining the thumb support surface 20 outside the planes 34 and 35 is not currently considered as part of the thumb support surface 20. The thumb support surface 20 advantageously has a curvature whose radius w is at least 10 mm, in particular at least 15 mm, advantageously at least 30 mm at any location. In the embodiment, the radius of the curvature is at least 40 mm at any location. Likewise, a flat design of the thumb support surface 20, i.e. an infinite radius, can be advantageous. The thumb support surface 20 transitions into the inner side 29 of the handle 6 together with the arch 31. The arch 31 is designed to be concave.

[0073] like Figure 7 and 8As shown, the thumb support surface 20 drops outwards in the direction of the longitudinal axis 14. However, a slight rise of the thumb support surface in this direction may also be advantageous. In a sectional plane extending parallel to the longitudinal axis 14 and through the inner side 29 (i.e. a sectional plane in the yz plane), the thumb support surface 20 encloses an angle γ with the longitudinal axis 14 that is open toward the fixing end 9. The angle γ is advantageously 30° to 110°. The angle γ is particularly preferably 45° to 90°. The angle γ is preferably less than 90°. Figure 8 The projection 63 of the third operating element 13 on the recess 64 can also be clearly seen in FIG. Figure 7 and 8 Furthermore, the design of the concave arch 31 is shown. The arch 31 has a radius s, which can be designed to be relatively small, that is, less than 2 cm, in particular less than 1 cm. The radius s does not have to be constantly the same size, but can vary, for example. Figure 7 and 8 As shown.

[0074] like Fig. 9 As shown, the actuating section 23 of the first actuating element 11 is at a distance d from the free end 10. The actuating section 16 of the second actuating element 12 is at a distance d from the free end 10. Figure 5 . The spacing e shown in the embodiment is larger than the spacing d. The spacing d and e are advantageously less than 7 cm, respectively. Thus, if the user 51 places his hand on the support surface 15, the operating elements 11 and 12 can also be operated by the user 51.

[0075] exist Fig.10 3 also shows the design of the thumb support surface 20 , the arch 31 and the inner side 29 adjoining thereto.

[0076] The second operating element 13 is arranged in such a way that even if the operator places his hand on the support surface 15 at the free end 10 of the lever 8, unintentional actuation of the second operating element 13 is avoided. Fig.11 As schematically shown, the second operating element 13 can, for example, actuate a schematically shown switch 65. Actuation of a mechanical element can also be provided. The switch 13 has a Fig.11Schematically shown in the figure are an unoperated state 39 and an operated state 41 in which the switch 65 is completely operated. Between the states, the operating element 13 can first pass through the idle travel 66. The switch 65 is not operated within the idle travel 66. The operating travel 67 is connected to the idle travel 66, in which the switch 65 is pressed. The position of the third operating element 13, in which the operating element 13 has passed the idle travel 66 and begins to execute the operating travel 67, is currently referred to as the operating position 40. In order to prevent unintentional operation of the switch 65, the operating position 40 is important, in which the operating travel 67 begins. The operation of the third operating element 30 within the idle travel 66 is not important for the function of the free-style cutting machine 1.

[0077] Fig.12 The third operating element 13 is shown in the unactuated state 39. In the exemplary embodiment, the second operating element 13 is covered by a cover 68 in the direction of the thumb support surface 20 and the free end 10. The cover 68 is at least so large that the third operating element 13 in the actuated position 40 in the direction of the longitudinal axis 14 in the viewing direction of the fixed end 9 projects beyond the outer contour of the handles 6, 7, that is, beyond the cover 68, by more than a maximum of 1 mm.

[0078] Fig.13 The third operating element 13 is shown in the actuated state 41. In the exemplary embodiment, the operating element 13 is pressed deeper into the rod 8 than the recess 64, so that the recess 64 projects beyond the operating element 13 at the side 62. However, it can also be provided that the third operating element 13 ends flat with the bottom of the recess 64 or projects beyond it. Only when the operator actively presses the operating element 13, the third operating element 13 is then moved from the bottom to the bottom. Fig.12 The unmanipulated state 39 shown in FIG. Fig.13 The state 41 of the operation shown in FIG. 4 is advantageously possible due to the cover 68 . Unintentional operation is avoided due to the cover 68 .

[0079] Figures 14 to 18 Different possible gripping positions for the handle 6 are shown. Fig.14 The handle 6 is shown schematically together with the hand 53 of the user 51 ( Figure 1 ). The hand 53 of the user 51 embraces the handle section 45. The palm 52 ( Fig.15 ) rests against the second operating element 12 and actuates it. The index finger 55 rests against the first operating element 11 and can actuate it. The middle finger 56, the ring finger 57 and the little finger 58 surround the handle section 45. Two possible positions for the thumb 54 are provided for this hand posture. Fig.15An arrangement is shown in which the thumb 54 is placed on the thumb support surface 20 and supported thereon. Fig.16 In the position shown in FIG. 4 , the thumb 55 is located below the thickened section 47 . The thumb 54 can surround the handle section 54 in this position. Fig.15 As shown, the thumb 54 can also operate the third operating element 13. In this case, the thumb 54 is located below the thickening 68 ( Fig.12 and 13 ).

[0080] As in Fig.15 and 16 As shown in the view in the direction of the longitudinal axis 14 toward the fixing end 9, the third operating element 13 is completely covered by the cover 68 in this viewing direction. The third operating element 13 is not visible in this view. The thumb support surface 20 is advantageously designed to be relatively large. The area of ​​the thumb support surface 20 in the viewing direction in the direction of the longitudinal axis 14 toward the fixing end 9 is advantageously at least 10%, in particular at least 20%, preferably at least 25% of the overall visible area of ​​the thickened section 47 of the first handle 6. Advantageously, the area of ​​the thumb support surface 20 in the viewing direction in the direction of the longitudinal axis 14 toward the fixing end 9 is less than 70%, in particular less than 50%, in particular less than 30% of the overall visible area of ​​the thickened section 47 of the first handle 6.

[0081] exist Fig.15 , the second operating element 12 in the operated position is shown. In this position, the second operating element 12 advantageously only slightly or not protrudes beyond the outer contour of the rod 8. In the embodiment, it is provided that the second operating element 12 in the operated position protrudes beyond the outer contour of the rod 8 by a protrusion j of a maximum of 3 mm, in particular a maximum of 2 mm. The protrusion j is advantageously no greater than 3 mm, in particular no greater than 2 mm, at any position of the second operating element 12.

[0082] Fig.17 The hand position is shown in which the hand 53 is partially supported on the support surface 15, more precisely advantageously together with the inner side of the index finger 55. The middle finger 56 surrounds the thickening 47. The ring finger 57 and the little finger 58 are in contact with the first operating element 11 and can operate it. The palm 52 of the user 51 is arranged on the second operating element 12 and can operate the second operating element 12.

[0083] exist Fig.18 5 shows a hand position in which the palm 52 of the hand 53 rests on the support surface 15. The second operating element 12 can be grasped with the little finger 58. The actuation of the first operating element 11 is provided for the middle finger 56. Actuation with the index finger 55 or the ring finger 57 can also be preferred by the user 51. Due to the spacing d and e (less than 7 cm) of the operating elements 11 and 12 relative to the free end 10, the Figure 5 and 9 ) The operation of the operating elements 11 and 12 is even possible Fig.18 The hand position shown in FIG. 8 is also possible without any problems.

[0084] Due to the continuous circle 32, the user 51 can switch between different hand positions in such a way that the hand 53 is pushed along the circle 32. This results in ergonomic work even over a longer period of time.

[0085] Figures 19 to 25 The design of the second handle 7 is shown. The second handle 7 is advantageously a left handle. The second handle 7 has no operating elements in the exemplary embodiment. The second handle 7 can thus be designed to be smaller than the first handle 6 overall. The two handles 6 and 7 have different shapes. However, the second handle 7 also has a thumb support surface 20, a support surface 15 at the free end 10 and a spherical support surface 33, just like the first handle 6. The same reference symbols characterize corresponding elements for both handles.

[0086] The second handle 7 also has a rod 8 with a fixed end 9 and a free end 10. A not shown receptacle 44 for a handlebar 43 is provided at the fixed end 9. The second handle 7 also has a longitudinal axis 14, which advantageously overlaps with the y-axis. The y-axis is oriented from the fixed end 9 to the free end 10. The x-axis extends from the rear side 30 to the front side 27. Fig. 20 As shown, the z-axis points from the outside 28 to the inside 29. The axes form a right-hand system.

[0087] like Fig.19As shown, the thumb support surface 20 and the longitudinal axis 14 enclose an angle β. The angle β is also at least 20° and a maximum of 70° for the second handle 7. In the embodiment, the angle β for the second handle 7 is slightly larger than the angle β for the first handle 6. Since the third operating element 13 is not arranged adjacent to the thumb support surface 20 in the second handle 7, the orientation of the thumb support surface 20 can be selected more freely. The thumb support surface 20 of the second handle 7 is located between the planes 34 and 35, which advantageously have a spacing h of less than 3 mm, especially less than 2 mm. The thumb support surface 20 is slightly concavely curved in the embodiment. The convex section is connected to the concave section. The arch of the thumb support surface 20 has a radius w at any position, which is at least 10 mm, especially at least 15 mm. The smallest radius w of the second handle 7 is especially smaller than the smallest radius w of the first handle 6. The flat design of the thumb support surface 20 can also be advantageous. The thumb support surface 20 has a spacing e to the free end. In the exemplary embodiment, the distance e is at least 1 cm for the second handle 7. The thumb support surface 20 has a length f of at least 2.5 cm, in particular at least 3 cm. The thumb support surface 20 has a width g of advantageously at least 8 mm, in particular at least 1 cm.

[0088] exist Fig. 20 The design of the spherical bearing 33 is shown in detail in FIG. The spherical bearing 33 forms a spherical bearing surface 36 which extends at the rear side 29 of the second handle 7. The spherical bearing surface 36 is approximately flat and can be slightly concavely curved in a cross-sectional plane parallel to the longitudinal axis 14. A convex curvature is also possible. The maximum spacing o and its ratio to the diameter p correspond to those in the first handle 6. Fig. 20 As shown, the spherical bearing surface 36 is inclined by an angle δ relative to the zy plane in the section plane shown perpendicular to the y axis. The angle δ of the spherical bearing surface 36 of the second handle 7 can be greater than the angle δ for the first handle 6. The same angle δ can also be provided.

[0089] exist Fig.21 The width g and the length f of the thumb support surface 20 can be clearly seen in FIG. Fig. 22 As shown, the curvature 31, with which the support surface 20 transitions into the inner side 29, is significantly larger than in the case of the first handle 6. This can also be seen in FIG. Fig.23 and Fig.25 As can be seen in Fig.25 As shown, the radius s of the curvature 31 is advantageously greater than 2 mm, in particular greater than 5 mm. In a sectional plane 20 parallel to the longitudinal axis 14 , the thumb support surface 20 encloses an angle γ with the longitudinal axis 14 , which corresponds to the angle γ described with respect to the first handle 6 .

[0090] like Fig.24As shown, the spherical bearing 36 is arranged in the first half 48 of the shaft section 45. Fig.24 As also shown, the spherical bearing surface 36 has a length k measured in the direction of the longitudinal axis 14. Fig.24 As shown, the spherical bearing surface 36 has a length k measured in the direction of the longitudinal axis 14. The length k is advantageously at least 2.5 cm, in particular at least 3.5 cm. Fig.24 The length u of the second handle 7 is preferably smaller than the length u of the first handle 6 .

[0091] Fig.26 The design of the handle grip 5 is shown. A fixing device 75 is shown on the handle rod 43, with which the handle rod 43 can be fixed to the guide tube 2. The fixing device 75 advantageously allows the position of the handle rod 43 to be adapted in the longitudinal direction of the guide tube 2 and / or the handle rod 43 to be pivoted about the fixing device 75, so that the inclination of the handle rod 43 and the inclination of the handles 6 and 7 can be set. Fig.26 The thumb support surfaces 22 of the two handles 6 and 7 are also shown. Fig.26 The direction of movement M for the harvesting operation and the direction of movement H for the chopping operation are also indicated.

[0092] Fig. 27 and 28 In each case a section through the ball bearing 33 is shown in the region in which the ball bearing 33 has the greatest distance o from the longitudinal axis 14 .

[0093] like Fig. 27 As shown, the spherical bearing surface 36 of the second handle 7 has a width m. The width m is advantageously at least 8 mm, in particular at least 1 cm. The spherical bearing surface 36 is located between two planes 37 and 38 extending parallel to each other via the width m and the length k. The two planes 37 and 38 have a spacing n from each other, which is advantageously less than 3 mm. The length k and the width m are measured in the region where the spherical bearing surface 36 is located between the planes 37 and 38.

[0094] like Fig.28 As shown, the spherical bearing surface 36 of the first handle 6 has a width m, which is advantageously at least 8 mm, in particular at least 1 cm. The spherical bearing surface 36 is located between two parallel planes 37 and 38, the distance n between which is advantageously at most 3 mm. Figure 3 ) and width m are measured in the region of the spherical bearing surface 36 between the planes 37 and 38.

[0095] like Fig. 27 and 28As also shown, the spherical bearing surface 36, in particular the spherical bearing surface 36 of the first handle 6, has a radius q in the cross-sectional plane shown perpendicular to the longitudinal axis 14, which is at least 10 mm, in particular at least 15 mm at any position. The spherical bearing surface 36 can extend concavely and / or convexly in the cross-sectional plane shown. It can also be advantageous to extend flatly at least in sections or to extend flatly continuously. In particular, a smaller radius can also be provided for the spherical bearing surface 36 of the second handle 7. The radius q of the middle, concave region is advantageously at least 10 mm, in particular at least 15 mm. The convex region connected thereto in the circumferential direction can have a radius of less than 10 mm.

[0096] Due to the orientation of the spherical bearing surface 36, the force can be introduced well via the spherical bearing surface 36 in the force direction B. The force directions B of the two handles 6 and 7 can extend obliquely to each other, such as Fig. 27 and 28 As shown. The force direction B advantageously extends transversely to the spherical bearing surface 36. The force direction B extends in particular perpendicularly to the planes 37 and 38. The spherical bearing surface 36 is advantageously oriented transversely, in particular perpendicularly, in the direction toward the tool unit 3. As a result, the force can be introduced well in the direction toward the tool unit 3 via the spherical bearing surface 36.

[0097] By pressing on the spherical bearing surfaces 36 of the handles 6, 7 and holding or pulling on the other handles 6, 7, force can be introduced easily and ergonomically in the movement direction M for the cutting operation. By pressing on the spherical bearing surfaces 36, in particular pressing on the spherical bearing surfaces 36 of both handles 6, 7, the tool unit 3 can be pressed downward and thus force can be introduced in the movement direction H for the chopping operation in a good and ergonomic manner.

[0098] The spherical bearing 33 is designed as a projection extending on the inner side 29 and the rear side 30 of the rod 8. The spherical bearing 33 is arranged at least partially, in particular completely, in the first half 48 of the respective handle 6, 7 for both handles 6, 7. Fig. 20 As shown for the second handle 7 in FIG, the handle 7 has a rubber lining 69. Advantageously, each handle 6, 7 has a rubber lining at least in sections, in particular on the entire outer surface of the rod 8. This achieves an improved grip of the hand 52 of the user 51 on the handle 6, 7.

[0099] The further features of the second handle 7 correspond to those of the first handle 6 , to which reference is made to the description thereof.

Claims

1. A handle (6, 7) for a handheld work tool, wherein the handle (6, 7) has a shaft (8) having a fixed end (9), the handle (6, 7) being fixed to the fixed end and having a free end (10), wherein the handle (6, 7) has an outer side (28) which is arranged to at least partially rest against a palm (52) of a user (51), wherein the handle (6, 7) has an inner side (29) which is opposite the outer side (28), wherein the handle (6, 7) has a longitudinal axis (14), It is characterized in that A thumb support surface (20) is arranged on the inner side (29) of the handle (6, 7), which in a side view perpendicular to the inner side (29) encloses an angle (β) of at least 20° and at most 70° with the longitudinal axis (14) at any point, and the thumb support surface (20) is located between two planes (34, 35) extending parallel to each other, the distance (h) between the two planes being less than 3 mm, and the thumb support surface (20) has a length (f) of at least 2.5 cm and a width (g) of at least 8 mm.

2. The handle according to claim 1, characterized in that: The thumb support surface (20) is at a distance (i) of at least 1 cm from the free end (10) of the rod (8).

3. The handle according to claim 1, characterized in that: The thumb support surface (20) merges with a concave curvature (31) into the inner side (29) of the handle (6, 7).

4. The handle according to claim 1, characterized in that: The thumb support surface (20) encloses an angle (γ) with the longitudinal axis (14) in a sectional plane extending parallel to the longitudinal axis (14) and through the inner side (29), which is open toward the fastening end (9) and is between 30° and 110°.

5. The handle according to claim 1, characterized in that: The thumb support surface (20) encloses an angle (γ) with the longitudinal axis (14) in a sectional plane extending parallel to the longitudinal axis (14) and through the inner side (29), which is open toward the fixing end (9) and is between 45° and 90°.

6. The handle according to claim 1, characterized in that: The rod (8) forms with its free end (10) a support surface (15) for the hand of a user.

7. The handle according to claim 6, characterized in that: The support surface (15) transitions via a continuous rounding (32) into a rear side (30) extending between the inner side (29) and the outer side (28) in the circumferential direction of the rod (8).

8. The handle according to claim 7, characterized in that: The circular portion (32) has a radius (r) of at least 1.5 cm at any location in a side view of the outer side (28).

9. The handle according to claim 7, characterized in that: The circular portion (32) has a radius (r) of at least 2 cm at any location in a side view of the outer side (28).

10. The handle according to claim 1, characterized in that A first operating element (11) is mounted on the lever (8) so as to be pivotable about a first pivot axis (21) and a second operating element (12) is mounted so as to be pivotable about a second pivot axis (22), wherein the first operating element (11) is designed for actuating a drive motor (26) and wherein the second operating element (12) in an unactuated position prevents actuation of the drive motor (26) via the first operating element (11).

11. The handle according to claim 10, characterized in that The longitudinal axis (14) is oriented perpendicularly to the first pivot axis (21) and perpendicularly to the second pivot axis (22), and the first pivot axis (21) and the second pivot axis (22) enclose an angle (α) of less than 180° in a viewing direction in the direction of the longitudinal axis (14).

12. The handle according to claim 10, characterized in that The longitudinal axis (14) is oriented perpendicularly to the first pivot axis (21) and perpendicularly to the second pivot axis (22), and the first pivot axis (21) and the second pivot axis (22) enclose an angle (α) of less than 120° in a viewing direction in the direction of the longitudinal axis (14).

13. The handle according to claim 11, characterized in that The first operating element (11) has a first operating section (23) protruding from the rod (8) in a non-actuated state, and the second operating element (12) has a second operating section (16) protruding from the rod (8) in a non-actuated state.

14. The handle according to claim 13, characterized in that The second operating section (16) has a first end (17) close to the fixed end (9) and a second end (18) close to the free end (10) of the rod (8), and the second pivot axis (22) is arranged closer to the first end (17) of the second operating section (16) than to the second end (18).

15. The handle according to claim 14, characterized in that The second operating section (16) of the second operating element (12) does not protrude more than 3 mm beyond the outer contour of the rod (8) at any point in an actuated state of the second operating element (12).

16. The handle according to claim 13, characterized in that The first operating section (23) of the first operating element (11) has a first end (24) close to the fixed end (9) and a second end (25) close to the free end (10) of the rod (8), and the first swing axis (21) is arranged closer to the second end (25) of the first operating section (23) than to the first end (24).

17. The handle according to claim 13, characterized in that The first operating section (23) of the first operating element (11) has a distance (d) of less than 7 cm relative to the free end (10) of the rod (8), and the second operating section (16) of the second operating element (12) has a distance (e) of less than 7 cm relative to the free end (10) of the rod (8).

18. The handle according to claim 13, characterized in that The first operating section (23) of the first operating element (11) and the second operating section (16) of the second operating element (12) overlap on a longitudinal section (19) of the rod (8), the length (a) of the longitudinal section measured in the direction of the longitudinal axis (14) being at least 30% of the length (b) of the first operating section (23) of the first operating element (11) measured in the same direction.

19. The handle according to claim 13, characterized in that The first operating section (23) of the first operating element (11) and the second operating section (16) of the second operating element (12) overlap on a longitudinal section (19) of the rod (8), the length (a) of the longitudinal section measured in the direction of the longitudinal axis (14) being at least 50% of the length (b) of the first operating section (23) of the first operating element (11) measured in the same direction.

20. The handle according to claim 13, characterized in that The first operating element (11) is arranged on a front side (27) extending between the inner side (29) and the outer side (28) in the circumferential direction of the rod (8) and is provided for abutting against a finger of a user, and the second operating element (12) is arranged on the outer side (28).

21. The handle according to claim 1, characterized in that The handle (6) has a third operating element (13), wherein the third operating element (13) is arranged on the inner side (29), wherein the third operating element (13) has an operating position (40) in which the third operating element (13) begins to execute an operating stroke (67) when moving from an unoperated state (39) to its operated state (41), and wherein the third operating element (13) in the operating position (40) protrudes beyond the outer contour of the handle (6, 7) by more than a maximum of 1 mm in the direction of the longitudinal axis (14) in the viewing direction of the fixing end (9).

22. The handle according to claim 1, characterized in that The handle (6) has a third operating element (13), wherein the third operating element (13) is arranged on the inner side (29), wherein the third operating element (13) has an operating position (40) in which the third operating element (13) begins to execute an operating stroke (67) when moving from an unoperated state (39) to its operated state (41), and wherein the third operating element (13) in the operating position (40) is located behind the outer contour of the handle (6, 7) in the direction of the longitudinal axis (14) in the viewing direction toward the fixing end (9).

23. The handle according to claim 22, characterized in that In a non-actuated state, the third operating element (13) projects beyond the contour of the lever (8) on at least one side.

24. The handle according to claim 22, characterized in that In the unactuated state, the third operating element (13) projects beyond the contour of the lever (8) on its side facing the fixing end (9).

25. The handle according to claim 1, characterized in that The shaft (8) of the handle (6) has a shank section (45) which has an elongated, roughly cylindrical shape and is adjoined by a thickened section (46) in the direction of the fastening end (9).

26. A free-style cutting machine with a guide tube (2), wherein a tool unit (3) is arranged at the end (42) of the guide tube (2), wherein a handle bar (43) is fixed to the guide tube (2), the handle bar carrying a handle (6, 7) at each end, wherein each handle (6, 7) has a rod (8), the rod has a fixed end (9), at the fixed end the handle (6, 7) is fixed to the handle bar; and a free end (10), wherein each handle (6, 7) has a front side (27) facing the tool unit (3) and an opposite rear side (30), wherein the handles (6, 7) have inner sides (29) facing each other and outer sides (28) facing away from each other, characterized in that A thumb support surface (20) is arranged on the inner side (29) of at least one of the handles (6, 7), the thumb support surface enclosing an angle (β) of at least 20° and at most 70° with the longitudinal axis (14) of the handles (6, 7) at any point in a side view perpendicular to the inner side (29), the thumb support surface (20) being located between two planes (34, 35) extending parallel to each other, the distance (h) between the two planes being less than 3 mm, and the thumb support surface (20) having a length (f) of at least 2.5 cm and a width (g) of at least 8 mm.

Images