Arrangement for force transmission and connection of a tool

Abstract

The invention relates to an arrangement for power transmission and connection of a tool for tools, which arrangement comprises a bit holder (10) having a polygonal shaft (11) at the front end of which a working end (12) is arranged, wherein a plug-in and connecting end (13) is arranged at the end different from the working end (12), namely the rear end of the shaft (11), wherein a locking element (14) is arranged at a location on the shaft (11) near the plug-in and connecting end (13), wherein a sheathing element (15) is arranged on the outer circumference of the shaft (11), namely between the working end (12) and the locking element (14), the sheathing element having a polygonal base body (151), wherein a recess (152) is arranged in an annular shape on the front section of the base body (151) and a successively widened stop (153) is connected to the front end of the sheathing element (15).

Description

Technical area

[0001] The invention relates to an arrangement for power transmission and connection of a tool for tools, which arrangement can be used for driving tools of various types. State of the art

[0002] TW I338608 B1 discloses an arrangement for connecting a tool, which arrangement comprises a handle 1, a fixing seat 2, and a control element 3. A fixing seat 2 is mounted on one end of the handle 1, to which a replaceable bit holder 4 is fixedly arranged. A receiving part 224 for receiving the control element 3 and at least one support part 225 are arranged on the fixing seat 2. At least one enclosing and fastening part 32 is arranged on the control element 3, which is partially in contact with the support part 225, wherein one end of the enclosing and fastening part 32 extends into the fixing seat 2 and can secure the bit holder 4. If a force is exerted on the control element 3, one end of the enclosing and fastening part 32 is lifted at the point where the enclosing and fastening part 32 itself is in contact with the support part 225 and is thereby separated from the fixed connection with the bit holder 4.In this way, the bit holder 4 is replaced.

[0003] However, the conventional arrangement for connecting a tool of the type mentioned above has the following deficiencies. The bit holder 4 can only be connected to the handle 1 and cannot be clamped in the chuck of an electric or pneumatic tool, thus preventing rapid execution of the screwing movement. Furthermore, it is not possible to use the bit holder 4 alone, thus limiting the scope of application. If driving tools of different types (e.g., handles, electric or pneumatic tools) each require at least one special, matching bit holder 4, this results in high costs and requires a large amount of storage space. Object of the invention

[0004] The invention is based on the object of creating an arrangement for power transmission and connection of a tool for tools, which avoids the disadvantages associated with the prior art. Technical solution

[0005] This object is achieved according to the invention by an arrangement for power transmission and connection of a tool for tools having the features of claim 1. Advantageous embodiments are the subject of the dependent claims.

[0006] The invention provides an arrangement for power transmission and connection of a tool for tools, which arrangement comprises a bit holder having a polygonal shaft, at the front end of which a working end is arranged, wherein at the end different from the working end, namely the rear end of the shaft, a plug-in and connecting end is arranged, wherein a locking part is arranged at a point on the shaft close to the plug-in and connecting end, wherein on the outer circumference of the shaft, specifically between the working end and the locking part, a casing part is arranged, which has a polygonal base body, wherein at the front section of the base body a recess is arranged in a ring shape and a successively widened stop is connected to the front end of the casing part.Thanks to the structural arrangement that the stop, the recess, the base body, the plug-in and connecting end and the locking part are arranged simultaneously, the use of one and the same bit holder for connecting a driving tool of different types is possible, so that the bit holder 10 can be used with driving tools 20 of different types.

[0007] The inventive arrangement for power transmission and connection of a tool for tools is characterized in that the bit holder is suitable for connecting a tool of different types, so that the bit holder can be connected to and used with driving tools of different types, thereby eliminating the prior art deficiency that at least one specifically matching bit holder must be provided for a driving tool of different types. The bit holder according to the invention enables low cost and requires little space for storage. Short description of the drawings Fig. 1 shows a perspective view of an arrangement according to the invention for power transmission and connection of a tool for tools. Fig. Figure 2 shows a planar view of the arrangement according to the invention Fig. 1. Fig. 3 shows a schematic representation of the applicability of the arrangement according to the invention to driving tools of various types. Fig. 4 shows a schematic representation of the connection of the arrangement according to the invention to a power tool. Fig. Figure 5 shows a schematic representation of the connection of the arrangement according to the invention with a handle. Fig. 6 shows a schematic representation of the connection of the arrangement according to the invention with a rotary sleeve. Fig. 7 shows a schematic representation of the rotational movement of the arrangement according to the invention connected to a rotary sleeve. Fig. 8 shows a further preferred embodiment of the arrangement according to the invention for power transmission and connection of a tool for tools. Detailed description of preferred embodiments

[0008] Objects, features, and advantages of the present invention will be explained in more detail below with reference to the detailed description of exemplary embodiments and the accompanying drawings. However, the invention is not limited to the description of these exemplary embodiments and their illustration in the accompanying drawings.

[0009] As in Fig. 1 to Fig. 3, the invention relates to an arrangement for power transmission and connection of a tool for tools, which arrangement comprises a bit holder 10 which has a polygonal shaft 11, at the front end of which a working end 12 is arranged, wherein at the end different from the working end 12, namely the rear end of the shaft 11, a plug-in and connecting end 13 is arranged, wherein at a point on the shaft 11 close to the plug-in and connecting end 13, a locking part 14 is arranged, wherein on the outer circumference of the shaft 11, specifically between the working end 12 and the locking part 14, a casing part 15 is arranged, which has a polygonal base body 151, wherein at the front section of the base body 151 a recess 152 is arranged in a ring shape and a successively widened stop 153 is connected to the front end of the casing part 15.Due to the structural arrangement that the stop 153, the recess 152, the base body 151, the plug-in and connecting end 13 and the locking part 14 are arranged simultaneously, the use of one and the same bit holder 10 for connecting a driving tool 20 of different types is made possible, so that the bit holder 10 can be used with driving tools 20 of different types.

[0010] According to the invention, the working end 12 is a socket into which a screwdriver bit 30 or a bolt can be inserted and fixed.

[0011] According to the invention, the working end 12 is a bushing in which a magnet 121 is installed.

[0012] According to the invention, the working end 12 is cross-shaped, slot-shaped or has an external hexagonal profile.

[0013] According to the invention, the holding part 14 is an annular groove 141 (see Fig. 1 to Fig. 7) so that the driving tool 20 can be locked into the bit holder 10 by means of the annular groove 141.

[0014] According to the invention, the holding part 14 is a notch 142 at the respective angle of the shaft 11 (see Fig. 8) so that an elastic C-shaped retaining ring (not shown) of the driving tool 20 can hold the bit holder 10 by means of the notches 142.

[0015] According to the invention, the shaft 11 and the base body 151 are both hexagonally profiled.

[0016] According to the invention, the sheathing part 15 is an insulating body.

[0017] According to the invention, the stop 153 is conical and can be easily gripped and rotated thanks to the conical shape (see Fig. 7).

[0018] The driving tool 20 is a power tool 21 (or a pneumatic tool). To use the arrangement according to the invention, the plug-in and connecting end 13 is inserted into a chuck 211 of the power tool 21 (or the pneumatic tool). As shown in Fig. As shown in Figure 4, the shaft 11 of the bit holder 10 is held by the chuck 211. This allows the bit holder 10 to rotate continuously by the power tool 21 (or the pneumatic tool) when the power tool 21 (or the pneumatic tool) is switched on. If a handle 22 is used as the driving tool 20, the base body 151 of the bit holder 10 is inserted into the handle 22, with a component of the handle 22 being inserted into the notches 142, so that the handle 22 is fastened to the bit holder 10. Thus, the bit holder 10 can also be used with the handle 22 (see also Fig. 5). If a control element 221 on the handle 22 is pressed, the recess 152 is released from the locking of the control element 221. This allows the bit holder 10 on the handle 22 to be replaced. Alternatively, the driving tool 20 can also be a rotary sleeve 23. Because the rotary sleeve 23 is connected to the shaft 11 and a snap lock 231 of the rotary sleeve 23 is in elastic engagement with the annular groove 141 (see Fig. 6), it is possible to use the bit holder 10 alone without the power tool 21, the pneumatic tool or the handle 22 (see Fig. 7).

[0019] The inventive arrangement for power transmission and connection of a tool for tools is characterized in that the bit holder 10 can be connected to and thus used with driving tools 20 of different types, thereby eliminating the prior art deficiency of having to provide at least one specifically matching bit holder for a driving tool of different types. The bit holder 10 according to the invention enables low cost and requires little space for storage.

[0020] Although the present invention has been described in detail using exemplary embodiments, it will be understood by those skilled in the art that the invention is not limited to these exemplary embodiments. Rather, modifications are possible such that individual features can be omitted or other combinations of features can be implemented, as long as the scope of the appended claims is not exceeded. The disclosure of the present invention includes all combinations of the individual features presented. List of reference symbols 10 bit holders 11 shaft 12 End of work 121 Magnet 13 Plug and connection end 14 Holding part 141 Ring groove 142 notch 15 Sheath part 151 basic bodies 152 recess 153 attack 20 driving tools 21 Power tools 211 feed 22 handle 221 Control 23 screenplays 231 snap fastener 30 screwdriver bits QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] TW I338608 B1

[0002]

Claims

[1] Arrangement for power transmission and connection for tools, which arrangement comprises a bit holder (10), characterized bythat the bit holder (10) has a polygonal shaft (11), at the front end of which a working end (12) is arranged, wherein at the end different from the working end (12), namely the rear end of the shaft (11), a plug-in and connecting end (13) is arranged, wherein at a point on the shaft (11) close to the plug-in and connecting end (13) a holding part (14) is arranged, wherein on the outer circumference of the shaft (11), specifically between the working end (12) and the holding part (14), a casing part (15) is arranged, which has a polygonal base body (151), wherein at the front section of the base body (151) a recess (152) is arranged in a ring shape and a successively widened stop (153) is connected to the front end of the casing part (15), wherein due to the structural arrangement that the stop (153), the Recess (152), the base body (151),the plug-in and connecting end (13) and the holding part (14) are arranged simultaneously, the use of one and the same bit holder (10) for connecting a driving tool (20) of different types is made possible, so that the bit holder (10) can be used with driving tools (20) of different types. [2] Arrangement according to claim 1, characterized by that the working end (12) is a socket. [3] Arrangement according to claim 1, characterized by that the working end (12) is a bushing in which a magnet is installed. [4] Arrangement according to claim 1, characterized by that the working end (12) is cross-shaped, slot-shaped or has an external hexagon profile. [5] Arrangement according to claim 1, characterized by that the holding part (14) is an annular groove (141). [6] Arrangement according to claim 1, characterized bythat the holding part (14) is a notch (142) at the respective angle of the shaft (11). [7] Arrangement according to claim 1, characterized by that the shaft (11) and the base body (151) are both hexagonally profiled. [8] Arrangement according to claim 1, characterized by that the sheathing part (15) is an insulating body. [9] Arrangement according to claim 1, characterized by that the stop (153) is conical and can be easily gripped and rotated thanks to the conical shape.

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