DE202014101023U1 - ratchet - Google Patents

Abstract

Ratchet, comprising: a ratchet body (1) with a driver head (11) at one end, this driver head (11) having a cavity (12) on the inside and a securing groove (14) being formed in an inner periphery of this cavity (12); a ratchet structure (2) which is inserted in the cavity (12) of the driving head (11); and a C-ring (3) formed with an outer edge (31) and an inner edge (32); the outer edge (31) is inserted into the securing groove (14) of the driving head (11) and the inner edge (32) is exposed in order to secure the ratchet assembly (2) on site; the C-ring (3) has two free ends, at least one of these two free ends being formed with a beveled end face (33) with a sharp edge to an inside of the C-ring (3).

Description

BACKGROUND OF THE INVENTION

1. Technical environment

The present invention relates to a ratchet, in particular a ratchet with a repaired circlip, with which a loosening and removal is simplified.

2. State of the art

The 6 shows that a ratchet of the prior art from a ratchet body 5 , a C-shaped retaining ring 6 and from a neck 7 consists. At one end of the ratchet body 5 is a driver head 51 formed, which has a cavity inside. An annular groove 511 is formed on an inner periphery of this cavity. The C-shaped locking ring 6 is in the ring groove 511 used to the neck 7 secure on site. Two free ends of the C-shaped ring 6 However, they have a vertical surface, which makes it difficult to operate.

The 7 shows that to circumvent the above drawback, another ratchet with a repaired C-shaped locking ring 8th was created. This C-shaped locking ring 8th has at its two free ends ever a snap part 81 on. Both snap pieces 81 each have a hole through their middle 811 on. A small screwdriver can therefore in these two holes 811 the two snap parts 81 be plugged in to the C-shaped snap ring 8th exit. The manufacturing cost of this C-shaped locking ring 8th with the two snap parts 81 are relatively high.

The present invention seeks to obviate / eliminate the disadvantages of the prior art ratchet.

OBJECT OF THE INVENTION

The main object of the present invention is to provide an improved embodiment of a ratchet.

To reach the target, a ratchet consists of a ratchet body, a ratchet assembly and a C-ring. A driving head is formed at one end of the ratchet body. The driver head has a cavity inside, in whose inner periphery a securing groove is formed. The ratchet assembly is inserted in the cavity of the driver head. The C-ring has an outer edge and an inner edge, wherein the outer edge is inserted into the locking groove of the driving head and the inner edge is exposed to secure the ratchet assembly in place. The C-ring has two free ends. At least one of these two ends is formed with a bevelled end surface having a sharp edge to an inside of the C-ring.

The C-ring has a gap between its two free ends. The tapered end surface of the C-ring is chamfered from the outer edge to the inner edge, and this beveled end face of the C-ring may also be slightly concave. The ratchet assembly has in the cavity of the driving head on a socket through which a driving opening is formed. A shoulder is formed on an upper surface of the neck against which the inner edge of the C-ring abuts.

Other advantages of the present invention will become more apparent after a careful reading of the detailed description with reference to the attached drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

1 shows a perspective exploded part view of a ratchet according to a first embodiment of the present invention;

2 shows a plan view of the in the 1 shown ratchet, wherein a C-ring is inserted in the ratchet body;

3 shows the C-ring, which consists of a cavity of in the 2 removed ratchet body is removed;

4 shows a perspective exploded part view of a ratchet according to a second embodiment of the present invention;

5 shows a plan view of the in the 4 shown ratchet, wherein a C-ring is inserted in the ratchet body;

6 shows an embodiment of the prior art; and

7 shows a further embodiment of the prior art.

WAYS FOR CARRYING OUT THE INVENTION

The 1 - 5 show that a ratchet according to the present invention from a ratchet body 1 , a ratchet construction 2 and a C-ring 3 consists. The ratchet body 1 is at one end with a driver head 11 formed in which a cavity 12 is shaped. The cavity 12 points at the top of the driver head 11 an opening 13 on. The ratchet construction 2 is in the cavity 12 of the driver head 11 used. In an inner periphery of the cavity 12 and close to the opening 13 of the driver head 11 is a safety groove 14 educated. The C-ring 3 has an outer edge 31 and an inner edge 32 on. The outer edge 31 is in the safety groove 14 of the driver head 11 used while the inner edge 32 is exposed to the ratchet construction 2 secure on site.

The C-ring 3 has two free ends, with at least one of these two ends having a bevelled end surface 33 with a sharp edge to an inside of this C-ring 3 having. The 4 shows that between the beveled end face 33 and an inner wall of the securing groove 14 an angle 34 is formed, with which the C-ring 3 over the bevelled end surface 33 can be gotten. The 3 shows that this is an end to the C-ring 3 is facilitated with a hand tool, for example with a screwdriver, around the bevelled end face 33 to move inward and the C-ring 3 exit.

In a preferred embodiment, the C-ring 3 between the two free ends a gap 35 on, leaving the C-ring 3 can be compressed. The 4 shows that the end face 33 of the C-ring 3 from the outer edge 31 to the inner edge 32 and to a middle line 4 the gap 35 is bevelled. The sharp edge of the C-ring 3 is therefore in its inner edge 32 educated. The 4 - 5 show that the beveled end face 33 of the C-ring 3 is slightly concave in another embodiment.

The 1 shows that the ratchet construction 2 in the cavity 12 of the driver head 11 with a neck 21 is formed. Through this neck 21 is a continuous driver opening 211 formed while on an inner periphery of this drive opening 211 several safety teeth 22 are formed. The stub 21 can therefore be used to rotate a fastener. The stub 21 has on the top of a shoulder 212 on, against the inner edge 32 of the C-ring 3 abuts the neck 21 in the cavity 12 of the driver head 11 to secure. There is also a diameter of the C-ring 3 larger than a diameter of the neck 21 so that's the C-ring 3 in the safety groove 14 insert to the neck 21 to secure.

Claims (5)

Ratchet consisting of: a ratchet body ( 1 ) with a driver head ( 11 ) at one end, this driver head ( 11 ) inside a cavity ( 12 ) and in an inner periphery of this cavity ( 12 ) a securing groove ( 14 ) is shaped; a ratchet construction ( 2 ) in the cavity ( 12 ) of the driver head ( 11 ) is used; and a C-ring ( 3 ), which has an outer edge ( 31 ) and with an inner edge ( 32 ) is formed; the outer edge ( 31 ) in the securing groove ( 14 ) of the driver head ( 11 ) and the inner edge ( 32 ) is exposed to the ratchet structure ( 2 ) to be secured on site; the C-ring ( 3 ) has two free ends, wherein at least one of these two free ends with a bevelled end surface ( 33 ) with a sharp edge to an inside of the C-ring ( 3 ) is formed. A ratchet according to claim 1, wherein the C-ring ( 3 ) between the two free ends of a gap ( 35 ) and the end surface ( 33 ) of this C-ring ( 3 ) from the outer edge ( 31 ) to the inner edge ( 32 ) is bevelled. A ratchet according to claim 2, wherein the chamfered surface ( 33 ) of the C-ring ( 3 ) is slightly concave. Ratchet according to one of claims 1 to 3, wherein the ratchet structure ( 2 ) with a nozzle ( 21 ) formed in the cavity ( 12 ) of the driver head ( 11 ) is shaped; a driver opening ( 211 ) through the neck ( 21 ) is formed; the stub ( 21 ) on a top with a shoulder ( 212 ) and the inner edge ( 32 ) of the C-ring ( 3 ) against the shoulder ( 212 ) of the neck ( 21 ) abuts. Ratchet according to claim 4, wherein a diameter of the C-ring ( 3 ) greater than a diameter of the neck ( 21 ).

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