EP2081738A1

EP2081738A1 - Handle

Info

Publication number: EP2081738A1
Application number: EP07820751A
Authority: EP
Inventors: Mario Frank; Ulrich Mueller-Boysen; Joachim Schadow; Juergen Wiker; Siegfried Keusch; Tobias Herr; Marcus Schuller
Original assignee: Robert Bosch GmbH
Current assignee: Robert Bosch GmbH
Priority date: 2006-10-25
Filing date: 2007-10-01
Publication date: 2009-07-29
Anticipated expiration: 2027-10-01
Also published as: WO2008049710A1; RU2009119359A; RU2458783C2; US20090064829A1; CN101535008B; CN101535008A; US8082634B2; EP2081738B1; DE202007014867U1; DE102007012301A1

Abstract

The invention describes a handle for a hand-held machine tool comprising a grip element (20) and a fastening element (10) for fastening the handle to a housing of a hand-held machine tool, wherein the fastening element (10) partially protrudes into the grip element (20) and a damping element (30) is provided between the grip element (20) and the fastening element (10), and wherein the fastening element (10) forms an undercut (12, 15) in the grip element (20).

Description

description

Title handle

State of the art

The invention relates to a handle, in particular an auxiliary handle, for a hand tool according to the preamble of claim 1.

Numerous power tools, such as Angle grinders and rotary hammers are equipped with an additional handle. In order to avoid that vibrations that occur during operation of the power tool are transmitted to the operator via the auxiliary handle, additional handles are usually provided with vibration damping means.

From DE 10 2004 017 761 A1, e.g. a vibration-damped handle is known, which comprises a rigid mounting part for releasable connection to the electric hand tool and a rigid grip part, wherein the mounting part extends into the grip part. Between the mounting part and the handle part, a vibration-damping material is provided, so that the mounting part is received in the interior of the grip part in the vibration-damping material. The mounting member is additionally provided with retaining elements which provide the mounting part on the injected vibration-damping material in the handle part sufficient support.

Disclosure of the invention

The invention relates to a handle for a hand tool with a handle element and a fastener with which the handle on a housing of a power tool can be fastened. The fastening element protrudes partially into the handle element. Between the handle element and the fastening element, a damping element, in particular made of an elastic material, in particular of an elastomer, is provided. The handle member and the fastener are thus not in contact with each other.

It is proposed that the fastening element forms an undercut in the grip element. Since the grip element and the fastening element do not touch each other but are separated from one another by the damping element, the fastening element in the grip element forms a non-contact

Undercut. In case of failure of the damping element due to damage or fatigue of the damping material is prevented by the undercut that the grip element can be separated from the fastener. The grip element is thus secured by the undercut against tearing. Also, the grip element is opposed by the undercut

Overstress secured because the undercut limits the deflection of the handle member relative to the fastener.

The fastening element is secured in the grip element in particular by an axial undercut. The axial undercut causes an axial

Securing, so that the fastener can not be removed from the handle element. A separation of the fastener from the handle member in the axial direction is thus locked.

In a further embodiment, the undercut alternatively or additionally causes a rotation of the fastener in the handle element, so that the fastener can not be rotated against the handle element. The fastener is thus locked in the handle element against rotation.

In a preferred embodiment, the fastening element forms an undercut in the grip element by means of a plug-in rotary movement. This means that during assembly of the handle, the fastening element is inserted into the grip element, so that it partially protrudes into the at least partially hollow grip element. The fastener and the Handle element are then rotated in their longitudinal axis relative to each other. This is done, for example, by the fastener is rotated by a certain angle about its longitudinal axis until the fastener forms an undercut in the handle member. The fastener thus forms with the handle member a bayonet-like closure without the

Touch handle element directly.

In a further refinement, the fastening element in the grip element forms an undercut by means of a plug-in rotary-pull movement, which enables not only an axial securing but also an anti-twist device.

In this case, the fastening element is first inserted into the handle element during assembly of the handle until it at least partially protrudes into the at least partially hollow handle element. Then, the fastening element and the grip element are rotated relative to one another in the longitudinal axis. This is done, for example, by the fastener is rotated by a certain angle about its longitudinal axis until the fastener forms an axial undercut in the handle member. Subsequently, the fastener and the handle member are pulled so far apart until the fastener is brought into an undercut position, which additionally allows a rotation. This relative movement of the fastening element and the grip element in the longitudinal direction thus takes place in the opposite direction to the longitudinal movement with which the fastening element is introduced into the grip element.

The fastening element can be designed in different ways. It may, for example, substantially the shape of a bolt, pin or the like. to have. In this case, the protruding from the handle element end, for example, be provided with a thread to screw the fastener into the housing of a power tool. Thus, in a simple embodiment, the fastening element may be a screw which is introduced into the grip element of the handle and is screwed into the housing when the handle is attached to a hand tool machine. Instead of a thread can also be provided, for example, a clamping device for connecting the handle to the housing of a power tool. In a further alternative embodiment, the fastening element may be designed in the form of a receiving sleeve with a nut. The receiving sleeve serves to receive a screw which is connectable to the nut. In this case, a screw may be attached to the housing of the power tool. To attach the handle to the

Hand tool, the screw is inserted into the receiving sleeve and bolted to the nut. The screw may e.g. be mounted on the housing via a tensioning device.

In order to form an undercut in the grip element, the fastening element is provided with at least one undercut element at its end projecting into the grip element. Preferably, two or more undercut elements are provided. The undercut elements may be molded onto the fastener or screwed, clipped, glued or otherwise attached to the fastener.

The undercut elements are in particular arranged radially on the fastening element, wherein they are e.g. are at a substantially right angle to the longitudinal axis of the fastener. Two or more undercut elements may be in a plane transverse to the longitudinal axis of the

Fastener, i. next to each other or in several planes transverse to the longitudinal axis, i. in a row, be arranged. Several undercut elements arranged one behind the other in the longitudinal direction of the fastening element provide additional protection against the tearing off of the grip element in the event of the damping element failing. In addition, a plurality of undercut elements improve the connection between the fastening element and the damping element, in particular if the damping element consists of a thermoplastic elastomer which is injected between the fastening element and the grip element.

To alternatively or additionally effect an anti-rotation, the undercut elements may also be aligned axially on the fastening element, so that they can engage in an axial recess. The undercut elements may be flat or angled, bent or curved.

So that the fastening element can form an undercut by means of a plug-in rotary movement or a plug-in rotary-pull movement relative to the gripping element, the gripping element has a recess which is provided with at least one undercut element. The undercut elements are arranged in particular radially on the grip element such that they project into the recess. The recess in the handle member for receiving the fastener may also be a cavity in the handle member. The

Undercut elements of the gripping element and the undercut elements of the fastening element may e.g. be formed complementary to each other. This means that the undercut elements of the grip element and the undercut elements are formed on the fastening element in such a way that the fastening element can be inserted through the recess into the grip element. In this case, the undercut elements of the grip element and the fastening element are axially moved past each other until the fastening element projects far enough into the grip element that the fastening element can be brought into an undercut position to the grip element by turning about its longitudinal axis. Alternatively, the handle member can be rotated about its longitudinal axis against the fastener or both elements, the handle member and the fastener to be rotated against each other.

In a further embodiment, in addition, the fastening element can be brought by a pulling movement in a rotationally secure position in the handle member. Alternatively, the handle member may also be moved by pulling relative to the fastener or both members, the handle member and the fastener, are pulled apart. The pulling movement takes place in the longitudinal direction of the handle and in the opposite direction to the plug movement, with which the fastening element is inserted into the recess of the handle member. The undercut elements of the grip element are provided with a corresponding recess, can engage in the undercut elements of the fastener by pulling. Alternatively, the undercut of the fastener can be achieved relative to the handle member instead of a bayonet-type locking by a snap-like locking, wherein also a non-contact, in particular axial, undercut is formed. Also in this

Embodiment of the locking of fastener and handle member do not touch the handle member and the fastener each other.

The snap-like locking is realized, for example, in that either the grip element or the fastening element or both elements are provided with at least one snap element. The snap element has the shape of an elastic spring element. The snap element can a Schnapparm, snap hook or the like. or an annular or ring-like snap element.

By nesting the fastener and the handle member are engageable with each other in the undercut, as in the nesting the fastener and the handle member so slide past each other, that the snap element is elastically deformed. It is therefore sufficient to effect a simple insertion movement to at least one axial securing of the fastening element in the handle element.

The damping element is preferably an elastomeric material, e.g. a thermoplastic elastomer or a flexible foam, which can be introduced after the fastening element has been introduced into the grip element between the grip element and the fastening element, e.g. injectable, is.

Instead of introducing the damping element after the introduction of the fastening element, the damping element can also be attached to the handle element before the fastening element is introduced. This is the

Damping element is introduced into the handle element such that the fastening element can be brought by a plug-in rotary movement or a plug-in rotary-pull movement relative to the handle element with damping element in the undercut position. In this embodiment, the damping element is shaped so that the fastening element with undercut elements in the Handle element can be inserted. In particular, the damping element has recesses for this purpose, which offer at least sufficient clearance for the insertion of the fastening element with undercut elements. The recesses in the damping element may be formed to be complementary to the undercut elements, for example. Thus, the fastener can be inserted through the recesses in the damping element in the handle member and be brought in the handle member by a rotation about its longitudinal axis in an undercut position to the handle member to allow an axial securing of the fastener. In addition, then, by a pulling movement relative to the damping element, the fastening element can be brought into a rotationally secure position in the grip element. Alternatively, the handle member may be moved with damping element by pulling relative to the fastener or both elements, the handle element with damping element and the fastener are pulled apart.

In this embodiment, therefore, the damping element is introduced into the grip element before the fastening element is introduced into the grip element. In this case, the damping element can be embodied as a separate component which can be prefabricated and can be connected to the grip element on the one hand and the fastening element on the other hand. In particular, the fastener with the damping element is insoluble, e.g. by gluing, connectable. Alternatively, the damping element may also be used together with the grip element, e.g. be prepared in a two-component injection molding process.

Another object of the invention is a method for producing a handle according to the invention, in which the fastening element is introduced into the grip element such that the fastening element forms an undercut in the grip element.

In the method, the fastener is placed in particular in an axial undercut position, which ensures an axial fuse in case of failure of the damping element. In particular, the fastener additionally brought into an undercut position, which causes a rotation against the handle element.

In a preferred embodiment, the fastening element is introduced by a plug-in rotary movement in the grip element such that the fastening element forms an undercut in the grip element.

This embodiment can for example be realized such that on the one hand the grip element has a recess and undercut elements which project into the recess, and on the other hand the

Fastening element is provided at least with an undercut element. The undercut elements of fastener and handle element may e.g. be formed complementary to each other. Thus, in a first step, the fastening element can be inserted through the recess into the grip element. Plug movement is understood to mean a longitudinal movement from fastening element to grip element with which the fastening element is introduced into the grip element. Thereafter, in a second step, the fastener is brought by rotation about its longitudinal axis in an undercut position to the handle member. Subsequently, the damping element is arranged between the grip element and the fastening element, preferably by injecting a thermoplastic elastomer. In this case, the fastening element is held by the grip element at a distance, so that a contactless undercut is formed.

Alternatively, the fastening element can also be introduced by a plug-in rotary movement in the grip element, if previously the damping element has been attached to the handle member.

In a further embodiment, the fastening element is introduced by a plug-in-turn-pull movement in the grip element such that the fastening element forms an undercut in the grip element, which additionally ensures an anti-rotation.

This embodiment may, for example, be realized such that, on the one hand, the grip element has a recess and undercut elements, which protrude into the recess, and on the other hand, the fastening element is provided at least with an undercut element. The undercut elements of the fastening element and the grip element may, for example, be complementary to each other. Thus, in a first step, the fastening element can be inserted through the recess into the grip element. Thereafter, in a second step, the fastener is brought by rotation about its longitudinal axis in an undercut position to the handle member. In a further third step, the fastening element is brought by a pulling movement relative to the handle element in an undercut position, which additionally secures the fastener against rotation. A pulling movement is understood to mean a longitudinal movement which takes place counter to the insertion movement of the first method step, ie the fastening element and the grip element are moved apart in the longitudinal direction. Subsequently, the damping element between the handle member and the fastener is arranged, preferably by a thermoplastic elastomer is injected. In this case, the fastening element is held by the grip element at a distance, so that a contactless undercut is formed.

Alternatively, in this embodiment, the fastening element can also be introduced by a plug-in rotary movement in the grip element, if previously the damping element has been attached to the handle member.

In an alternative embodiment of the method for producing a handle according to the invention, the fastening element is replaced by a plug-in element.

Movement introduced into the handle member such that the fastener in the handle member forms the undercut.

This embodiment can for example be realized such that one of the two elements, the handle element or the fastening element, has a recess for receiving the other element. For example, the grip element is provided with a recess into which the fastener can be inserted. Furthermore, at least one of the two elements, the handle element or the fastening element, at least one snap element, which is elastically deformable. For example, the edge of the recess be rigid while the fastener is equipped with one or more snap elements. In this case, the rigid edge of the recess and the at least one snap element of the fastening element are designed to correspond to one another such that upon nesting of the grip element and the fastener, the edge and the snap element slide past each other, wherein the snap element is elastically deformed.

Accordingly, this embodiment of the method consists in inserting the grip element and the fastening element into each other until they reach each other in a non-contact undercut position. Subsequently, the gap may be formed, for example, with an elastic material, e.g. an elastomer or a foam, as a cushioning element, e.g. by injection molding, to be completed.

The undercut elements of fastener and handle element may e.g. be formed complementary to each other. Thus, in a first step, the fastening element can be inserted through the recess into the grip element.

The handle according to the invention preferably has the shape of a style, rod or the like. The handle element of the handle has a substantially cylindrical shape. This may be a cylinder in a simple embodiment. In a further embodiment, however, the cylindrical gripping element can also be adapted to the ergonomics of the human hand by having, for example, differing diameters from a pure cylindrical shape along its longitudinal axis. The gripping element can be rotationally symmetrical, so that the handle can be grasped in any orientation by the operator. Alternatively, the gripping element can also be so specially adapted to the ergonomics of the human hand that a first area of the gripping element serves specifically as a support surface for the palm and a second area as a support surface for the fingers.

Furthermore, the handle element can be made in one piece or in several parts. A handle with a one-piece handle member has, for example, a rod-shaped Handle element, for example made of a thermoplastic material, with a fastening element at one end of the handle element. By contrast, a two-part grip element, for example, has a grip core made of a hard material, for example a thermoplastic, and a grip cover made of a soft material, for example an elastic plastic. The handle cover can completely or partially surround the handle core.

The handle according to the invention can also be designed in the form of a bow handle. A bow handle has a substantially U-shaped configuration. In this case, at least one of the two ends of the legs of the U-shaped handle is provided with a fastening element for attachment to a housing of a power tool. It can also be provided with a respective fastening element both ends of the legs of the U-shaped handle.

The handle according to the invention is particularly suitable as an auxiliary handle for a battery-operated or mains-powered hand tool, such as e.g. Angle grinder, hammer drill. Accordingly, a hand tool, which has a handle according to the invention, forms a further subject of the invention.

The invention will be explained in more detail with reference to the accompanying drawings. It show in schematic form

Figure 1 shows a first embodiment of a handle according to the invention with a fastener in the axial undercut position to a

handle element

2 shows the fastener of Figure 1

3 shows the handle element of Figure 1

Figure 4 shows a second embodiment of a handle according to the invention, shown without fastener

Figure 5, the handle of Figure 4 with fastener Figure 6 shows another embodiment of a handle according to the invention with additional rotation

Figure 7 shows the handle of Figure 6 without damping element shown in longitudinal section

8 shows the handle element of the handle according to FIG. 6 in a perspective view

9 shows an alternative embodiment of a handle according to the invention with a fastening element in the axial undercut position to a handle element

10 shows an embodiment of a handle according to the invention with a

Snap element on the handle element

Figure H shows a further embodiment of a handle according to the invention with a snap element on the fastener.

In Fig. 1, a first embodiment of a handle 100 according to the invention is shown. The handle 100 is suitable as an additional handle for a hand tool (not shown). It comprises a grip element 20, a fastening element 10 and a damping element 30 arranged between grip element 20 and fastening element 10. The grip element

20 and the damping element 30 are shown in Fig. 1 cut. The grip element 20 is executed in a style and cylindrical. In the interior of the grip element 20, a cavity 21 is formed. The handle 100 is connected via a fastening element 10, which partially protrudes into the grip element 20, with a housing of the power tool. This can do that

Fixing element 10, for example, a thread (not shown), with which it is screwed into the housing. At its end facing the fastening element 10, the grip element 20 carries a flange-like extension 22. For receiving the fastening element 10, the grip element 20 is provided with a recess 24. The undercut 12 is noncontact, since the fastener 10 and the handle member 20 are separated by the damping element 30 from each other, ie the

Fastener 10 and the handle member 20 do not touch each other. In the case of failure of the damping element 30, however, the undercut 12 prevents the fastening element 10 from being able to be separated from the grip element 20. The undercut 12 is in particular an axial undercut, which causes an axial securing of the fastening element 10. The undercut 12 is achieved in particular by a plug-in rotary movement, as described in the embodiment of FIGS. 1-5. Alternatively, an undercut of the fastener 10 in the handle member 20 may also be effected by a plug-and-pull / pull movement as illustrated in the embodiment of Figs. 6-8.

The fastening element 10 has undercut elements 14, which are arranged radially on the shaft 11 of the fastening element 10. In the illustrated embodiment of Figures 1 and 2, three undercut elements 14 are provided in a plane perpendicular to the longitudinal axis of the fastener 10, i. three undercut elements 14 are arranged side by side. The undercut elements 14 of Figs. 1 and 2 are also sequentially, i. arranged distributed on three levels transverse to the longitudinal axis. As the fastener 10 in Fig. 5 shows, alternatively, less undercut elements 14, as shown in FIG. 1 and 2, may be provided.

For example, in Fig. 5, only three undercut elements 14 are juxtaposed, i. in a plane transverse to the longitudinal axis of the fastener 10, formed. It is also possible to provide more than undercut elements shown in FIGS. 1 and 2 (not shown). In the illustrated embodiment, the undercut elements 14 are integrally formed on the shaft 11.

In a first embodiment, shown in Figs. 1-3, the fastener 10 forms an undercut 12 by a rotary-plug movement in the handle member 20 before the damping element 30 has been introduced into the handle member 20, while in a second embodiment, shown in FIGS. 4-5, the fastener 10 is connected to the handle member 20 by a rotary-plug movement only after the damping element 30 has been attached to the handle member 20.

In the sectional view of the handle member 20 in Fig. 3 it can be seen that the

Recess 24 are provided in the handle member 20 with undercut elements 26 which are complementary to the undercut elements 14 of the fastener. The undercut elements 26 are likewise arranged radially on the grip element 20, as a result of which they project into the recess 24 or the cavity 21. Thus, the fastening element 10 can be inserted with the undercut elements 14 through the recess 24 into the grip element 20. In this case, the fastener 10 is inserted so far into the handle member 20 until the undercut elements 14 are spaced from the undercut elements 26 of the handle member 20 in the longitudinal direction. By a rotational movement about its longitudinal axis, the fastening element 10 is then brought into an undercut position 12 to the grip element 10, more precisely to the undercut elements 26 of the grip element 10, without touching the grip element 20. Subsequently, the damping element 30, e.g. by injecting a thermoplastic elastomer, between the fastener 10 and the handle member 20, are introduced.

In the second embodiment according to FIGS. 4-5, the damping element 30 is first introduced into the grip element 20 (FIG. 4) before the fastening element 10 is introduced into the grip element 20 (FIG. 5). For example, the damping element 30 of a thermoplastic

Elastomer be molded onto the handle member 20. The damping element 30 also has a recess 34 and is provided with projections 36 which are arranged radially on the damping element 30 so that they protrude into the recess 34. The projections 36 on the damping element are formed in the illustrated embodiment complementary to the undercut elements 14 of the fastener 10. Therefore, the fastener 10 can be inserted through the recess 34 into the handle member 20 with damping element 30. The fastening element 10 is pushed into the grip element 20 until the undercut elements 14, by a rotational movement of the fastening element 10 about its longitudinal axis, engage the grip element 20. Thus, the fastening element 10 is simultaneously brought into an axial undercut position 12 to the gripping element 20, without touching the gripping element 20.

In an alternative embodiment of a handle 100 according to FIGS. 6-8, the fastening element 10 in the grip element 20 not only forms an axial undercut 12, but also an undercut 15, which effects an anti-rotation lock.

In the embodiment shown in Fig. 6-8, the

Fastening element 10, a receiving sleeve 18 and a nut 19. The receiving sleeve 18 serves to receive a screw 51 and is made for example of a hard plastic. The screw 51 is connected via a tensioning device 52 indicated in Fig. 6, e.g. a strap, to the housing of a hand tool (not shown) attachable. To the

Attaching the handle 100 to a hand tool, the screw 51 is inserted into the receiving sleeve 18 and screwed to the nut 19.

Between the fastening element 10 and the grip element 20 is in turn a damping element 30, e.g. made of a thermoplastic elastomer, arranged so that the fastener 10 and the handle member 20 do not touch each other.

In order to form an axial undercut 12, the grip element 20 is again provided with undercut elements 26 which, as can be seen in the perspective illustration according to FIGS. 7 and 8, are arranged radially on the inner wall 23 of the grip element 20, so that they enter the cavity 21 or the recess 24 protrude. The undercut elements 26 are formed in the illustrated embodiment on the inner wall 23 of the handle member 20. In a corresponding manner, the sleeve 18 of the fastener 10 is also provided with undercut elements 14, wherein the undercut elements 14 of the fastener 10 and the undercut elements 26 of the handle member 20 are formed complementary to each other. To form an undercut 15, which additionally effects an anti-rotation lock, the sleeve 18 furthermore has at least one undercut element 17 which projects in the axial direction in relation to the undercut elements 14. In a corresponding manner, at least one undercut element 26 of the grip element 20 is provided with a recess 27 into which the undercut element 17 can engage without contact.

The undercuts 12, 15 are achieved by a plug-in-turn-pull movement of the fastener 10 relative to the handle member 20. The undercut elements 26 of the gripping element 20 and the undercut elements 14 of the sleeve 18 are designed to be complementary to one another, so that the sleeve 18 of the fastening element 10 can be inserted through the recess 24 into the gripping element 20. The sleeve 18 is inserted into the handle element 20 until it is rotated about its longitudinal axis into an undercut position 12 to the grip element 20, i. to the undercut elements 26, can be brought. Subsequently, the sleeve 18 is additionally brought by pulling in a rotationally secure undercut position 15 in the handle member 10. The pulling of the sleeve 18 with the fastening element 10 relative to the grip element 20 is accordingly a longitudinal movement which takes place in the opposite direction to the insertion or insertion of the fastening element 10 into the grip element 20. When pulling, at least one undercut element 17 of the sleeve 18 engages in a recess 27 in an undercut element 26 of the grip element 20. Also, the undercut 15, which ensures a rotation, is a contactless undercut, since between the handle member 20 and the sleeve 18, a damping element 30 is provided.

In an alternative embodiment according to FIG. 9, the fastening element 10 forms an undercut 12 in the grip element 20 by a simple plug-in movement. After the fastener 10 has been inserted into the grip element 20, the damping element 30 becomes between the grip element

20 and the fastener 10 introduced. The fastening element 10 is designed in two parts in the illustrated embodiment. It comprises a type of threaded bolt 55 and a carrier element 56. The carrier element 56 may be made of a thermoplastic, for example, which is injection-molded onto the threaded bolt 55. In the sectional views according to FIGS. 9a and 9b it can be seen that on the carrier element 56 of the fastening element 10 and on the gripping element 20 complementary undercut elements 14, 26 are formed. The undercut elements 14, 26 are each in a 120 ° division at the

Fastener 10 and handle member 20 is arranged. This makes it possible during assembly, the handle member 20 and the fastener 10 in the longitudinal direction of the handle into each other and then by about 60 ° against each other to rotate about the longitudinal axis, whereby the fastening element 10 enters an axial undercut position relative to the handle member 20 , In the undercut position, the grip element 20 and the fastening element 10 are inserted into one another so far that the undercut elements 14 of the fastening element 10 are spaced from the undercut elements 26 of the grip element 20 in the longitudinal direction and therefore do not touch each other. Subsequently, the damping element 30, e.g. by injecting a thermoplastic elastomer, between the fastener 10 and the handle member 20, are introduced.

Unlike in the embodiment according to FIGS. 1-3, the carrier part 56 of the fastening element 10 is provided with a recess 57 into which the grip element

20 is introduced. The undercut elements 14 of the fastening element 10 protrude radially into the recess 57. The undercut elements 26 of the grip element 20 are directed in the shape of a collar in a radially outward direction.

10 and 11 show two embodiments in which instead of a bayonet-type locking a snap-like locking is realized. In this case, a non-contact axial undercut 12 of the fastener 10 is also formed relative to the handle member 20. The snap-like locking is realized by the fact that, according to FIG. 10, a snap element 61 is attached to the grip element 20 and, according to FIG. 11, to the fastening element 10

Snap element 62 is formed. The snap elements 61, 62 are designed as annular elastic spring elements. Alternatively, as snap elements 61, 62 and one or more snap hooks or the like. be formed, with several snap hooks or the like. for example, equidistant can be arranged on the circumference of the handle member and / or the fastener (not shown).

In the embodiment according to FIG. 10, a recess 24 for receiving the fastening element 10 is provided in the head region 28 of the grip element 20. At the edge of the recess 24, an annular snap element 61 is integrally formed on the grip element 20, which serves as an undercut element 26. The fastening element 10 is constructed at least in two parts from a type of threaded bolt 55 and a carrier element 56, wherein the carrier element 56 at least partially receives the threaded bolt 55. To the

Edge of the support member 56 are undercut elements 14 are formed, which engage behind the undercut elements 26 of the handle member 20 without contact. Between the grip element 20 and the fastening element 10, a damping element 30 is again inserted, e.g. in the form of an elastomer, which in the space between the handle member 20 and fastener 10 in

Head portion 22 is injected.

The assembly of such a handle is carried out by simply nesting together of handle member 20 and fastener 10, whereby the fastener 10 snaps into the handle member 20. It will be in

Longitudinal direction of the handle, the fastener 10 is inserted into the recess 24 and inserted so far into the head portion 22 until the fastener 10 is spaced from the handle member 20 in the axial direction and thus forms an axial undercut 12. The snap member 61 on the handle member 20 allows by its elasticity that the fastener 10 can be inserted into the handle member 20, although the inside diameter at the edge of the recess 24 is smaller than the outer diameter of the support member 56th

In the embodiment according to FIG. 11, the carrier element 56 of the fastening element 10 is provided with a recess 57, into which the grip element 20 can be introduced or inserted. At the edge of the recess 57 an annular snap element 62 is formed, which serves as an undercut element 14, since it is directed inward in the radial direction in the recess 57. The grip element 20 is provided with corresponding undercut elements 26 equipped, which are directed radially outward. When the handle element 20 is inserted into the recess 57, the grip element 20 snaps into the fastening element 10, since the snap element 62 is elastically deformable. During assembly, the grip element 20 is inserted so far into the recess 57 of the fastening element 10 that it is spaced therefrom in the axial direction, whereby the undercut elements 14, 26 reach an axial undercut position 12.

Claims

claims

A handle for a hand tool comprising a handle member (20) and a fastener (10) for attaching the handle to a housing of a hand tool, wherein the fastener (10) partially into the handle member (20) protrudes and between the

Grip element (20) and the fastening element (10) is provided a damping element (30), characterized in that the fastening element (10) in the grip element (20) forms an undercut (12, 15).

Second handle for a hand tool comprising a handle member (20) and a fastener (10) for fixing the handle to a housing of a power tool, and a damping element (30) which is disposed between the handle member (20) and the fastener (10) , characterized in that the fastening element (10) and the grip element (20) are arranged to each other such that they are in an undercut (12, 15) to each other.

3. Handle according to one of claims 1 or 2, characterized in that the fastening element (10) in the grip element (20) forms an axial undercut (12).

4. Handle according to one of claims 1-3, characterized in that the fastening element (10) in the grip element (20) forms an undercut (15), which causes an anti-rotation.

5. Handle according to one of the preceding claims, characterized in that the undercut (12, 15) is formed by a bayonet-type locking.

6. Handle according to one of the preceding claims, characterized in that the grip element (20) has a recess (24) with at least one undercut element (26), and the fastening element (10) is provided with at least one undercut element (14) the fastening element (10) can be brought into the undercut (12) by a plug-in rotary movement relative to the gripping element (20).

7. Handle according to one of the preceding claims, characterized in that the grip element (20) has a recess (24) with at least one undercut element (26, 27), and the fastening element (10) with at least one undercut element (14, 17) is provided that the fastening element (10) can be brought into the undercut (12, 15) by a plug-in-turn-pull movement relative to the handle element (20).

8. Handle according to one of claims 1-4, characterized in that the undercut (12, 15) is formed by a snap-like locking.

9. Handle according to claim 8, characterized in that the grip element (20) and / or the fastening element (10) at least one snap element

(61, 62) such that the fastening element (10) and the grip element (20) can be brought into the undercut (12) by nesting one another.

10. Handle according to one of the preceding claims, characterized in that the damping element (30) is formed of an elastomeric material, which between the handle element (20) and the fastening element (10) can be introduced.

11. Handle according to one of the preceding claims, characterized in that the damping element (30) in the handle member (20) is introduced such that the fastening element (10) by a plug-in rotary movement or a plug-in rotary-pull movement relative to the handle element (20) with damping element (30) in the undercut (12, 15) can be brought bar.

12. Handle according to one of claims 6-11, characterized in that the undercut elements (26, 27) of the handle element (20) and the undercut elements (14, 17) of the fastening element (10) are complementary to each other.

13. Hand tool comprising a handle according to one of the preceding claims.

14. A method for producing a handle according to any one of claims 1-12, characterized in that the fastening element (10) is introduced into the grip element (20) such that the fastening element (10) in the grip element (20) has an undercut (12 15).

15. The method according to claim 14, characterized in that the

Fastening element (10) in the handle member (20) is introduced such that the fastening element (10) in the handle member (20) forms an axial undercut (12) and / or forms an undercut (15), which causes a rotation.

16. The method according to any one of claims 14 or 15, characterized in that the fastening element (10) by a plug-in rotary movement in such a manner in the grip element (20) is introduced, that the fastening element (10) in the grip element (20) Undercut (12) forms.

17. The method according to any one of claims 14-16, characterized in that the fastening element (10) is introduced by a plug-in rotary-pull movement in the handle element (20) that the fastening element (10) in the handle element (20 ) forms the undercut (12, 15).

18. The method according to any one of claims 14 or 15, characterized in that the fastening element (10) by a plug-in movement in such a manner in the grip element (20) is introduced, that the fastening element (10) in the grip element (20) the undercut ( 12).