DE20316821U1 - Adaptor for ratchet spanner has a doubled sided profile to fit between a ratchet spanner and a selected tool bit to vary the reach of the spanner - Google Patents

Abstract

An adaptor for a ratchet spanner system has a male fitting (11) at one end and a female fitting (14) at the other end. The fittings have the same number of ribs as the socket (23) of the ratchet spanner, usually 12 outer ribs and 12 inner grooves. The adaptor can be of various lengths and several adaptors can be clipped together to vary the operating reach of the spanner.

Description

The present utility model concerns a socket wrench insert according to the preamble of claim 1.

The invention is based on the object a socket wrench insert with extended working length provide that in an elongated narrow space can be used.

According to the invention, a socket wrench insert is used to disposal with inner and outer teeth, where the number of inner and outer teeth is the same and the shape of teeth each other equivalent.

Other features and advantages of Invention result from the detailed description of exemplary embodiments with reference to the attached Drawings.

Show it:

1 a perspective view of a socket wrench insert according to the present utility model and a ratchet wrench with which this can be used;

2 an elevation of the socket wrench insert 1 from underneath;

3 a perspective assembly view of the socket wrench insert and the ratchet wrench 1 ; and

4 a perspective assembly view of another embodiment of the present utility model.

Referring to the 1 and 2 a socket wrench insert according to the present utility model comprises a main body 10 with a first cylinder 11 and with a second cylinder 14 that is integral with the first cylinder 11 is trained.

On the outer edge of the first cylinder 11 is a plurality of arcuate outer teeth 12 educated. Preferably the first cylinder 11 with twelve outer teeth 12 formed, which are arranged in an annular manner. On the outer edge of the first cylinder 11 are also several arcuate cutouts 120 trained between the outer teeth 12 are provided. Preferably the first cylinder 11 with twelve recesses 120 educated.

On the inside edge of the second cylinder 14 is a plurality of arcuate internal teeth 13 educated. Preferably the second cylinder 14 with twelve inner teeth 13 formed, which are arranged in an annular manner. On the inside edge of the second cylinder 14 are also several arcuate cutouts 130 trained between the inner teeth 13 are provided. Preferably the second cylinder 14 with twelve recesses 130 educated. The inner teeth 13 and the outer teeth 12 comprise the same number of teeth and have a corresponding tooth shape.

A ratchet wrench 20 has a drive head 21 on the inner edge of a plurality of arcuate inner teeth 23 is trained. The drive head is preferably 21 with twelve inner teeth 23 educated. On the inner edge of the drive head 21 are also several arcuate cutouts 230 trained between the inner teeth 23 are provided. The drive head is preferably 21 with twelve recesses 230 educated.

In use, referring to the 1 - 3 , the drive head 21 on the first cylinder 11 put on, the twelve outer teeth 12 with the twelve inner teeth 23 interlink. Then the second cylinder 14 on a workpiece, for example a nut 30 , attached, with the twelve inner teeth 13 on the six faces 32 mother 30 issue. Thus, when the drive head 21 is rotated, the main body 10 rotated so the mother 30 is rotated as in 3 is shown.

4 shows that the main body 10A a second socket on the main body 10 the first socket wrench insert 10 is attached, the twelve outer teeth 12 of the main body 10A with the twelve inner teeth 13 of the main body 10 are toothed and with the twelve inner teeth 13 of the main body 10A on the six faces 32 mother 30 issue. In this way, the socket wrench inserts can interactively increase the working length, so that the socket wrench inserts and the ratchet wrench 20 can be used in an elongated narrow space.

Accordingly, the tightening torque of the drive head 21 evenly and gently on the twelve outer teeth 12 and the twelve inner teeth 23 distributed without causing a stress concentration effect, thereby preventing the main body 10 and the drive head 21 break due to excessive torque, so that the service life of the socket wrench inserts and ratchet wrench 20 increase. It also includes the inner teeth 13 and the outer teeth 12 the same number of teeth and have a corresponding tooth shape, so that the socket wrench inserts can work together in combination to increase the working length and the socket wrench inserts in combination with the ratchet wrench 20 can be used interactively in an elongated rather narrow space.

Claims (4)

Socket wrench insert that has a main body ( 10 ) with a first cylinder ( 11 ) and with a second cylinder ( 14 ) integral to the first cylinder ( 11 ) is molded, includes, thereby characterized records that on the outer edge of the first cylinder ( 11 ) a plurality of external teeth ( 12 ) is trained; on the inside edge of the second cylinder ( 14 ) a plurality of inner teeth ( 13 ) is trained; the inner teeth ( 13 ) and the outer teeth ( 12 ) comprise the same number of teeth and have a corresponding tooth shape. Socket wrench insert according to claim 1, characterized in that the first cylinder ( 11 ) with twelve outer teeth ( 12 ) is trained. Socket insert according to claim 1, characterized in that the second cylinder ( 14 ) with twelve inner teeth ( 13 ) is trained. Socket according to claim 1, characterized in that any two sockets with each other can be connected so the total length to enlarge.