CN1651195A

CN1651195A - Handle for socket wrench

Info

Publication number: CN1651195A
Application number: CN 200410058288
Authority: CN
Inventors: 铃木庄司
Original assignee: KO KEN TOOL CO
Current assignee: KO KEN TOOL CO
Priority date: 2004-02-05
Filing date: 2004-08-20
Publication date: 2005-08-10
Anticipated expiration: 2024-08-20
Also published as: JP4360927B2; HK1076422A1; CN100384595C; TWI316018B; TW200526378A; JP2005219157A

Abstract

To provide a handle for a socket wrench positively transmitting driving force to a socket, an extension bar, or the like. This handle for the socket wrench is constituted by slidingly fitting an adapter 2 to a handle body 1 composed of a rod body with slip-off preventing steel balls 4 mounted to both ends, so that the handle body 1 passes through an assembly hole 3 provided in the adapter 2. A cross-sectional shape of the handle body 1 and a hole shape of the assembly hole 3 are formed in elliptic shape coinciding with each other.

Description

The box spanner handle

Technical field

The present invention relates to a kind of box spanner handle, saying of summary is exactly for drive sleeve, and box spanner that adapter (cap) be installed on the handle main body that is made of the excellent body of rod is with handle (constituting box spanner with sleeve).

Background technology

There is following structure in the prior art, handle main body has been installed slip-off preventing by two ends and has been used the excellent body of rod of steel ball to form, on handle main body, adapter (cap) is formed in the following manner, above-mentioned handle main body slided in the mode that runs through is embedded in the pilot hole (through hole) that is provided with on this adapter, on the insertion body that adapter possessed sleeve and extension bar is combined (for example patent document 1).

Patent document 1: Japan opens flat 6-9876 communique in fact

In the above-mentioned prior art, the cross section that constitutes the excellent body of rod of handle main body constitutes with circle, therefore the shape with the pilot hole of the chimeric adapter side of this handle main body also be a circle, so when drive sleeve (chimeric nut, bolt head), can exist the driving force of giving from the handle main body side can not be transferred to the situation of sleeve side by adapter, its reason be handle main body with respect to the adapter side because small variations such as handle main body inclination have produced rotation.

Summary of the invention

The object of the invention is to provide a kind of box spanner handle that has adapter, and it can prevent the reduction of the driving force that the engomphosis relation owing to such handle main body and adapter causes as much as possible.

Of the present invention constitute as follows, handle main body has been installed slip-off preventing by two ends and has been used the excellent body of rod of steel ball to form, on handle main body, adapter is formed in the following manner, above-mentioned handle main body slided in the mode that runs through is embedded in the pilot hole that is provided with on this adapter, the cross sectional shape of above-mentioned handle main body and above-mentioned pilot hole be shaped as mutual consistent ellipse.

Again, said herein ellipse need not superfluous words, is not that strictness refers to that the distance of 2 fulcrums of so-called distance is the track of the point of definite value.

Again, the fixedly ball that to give prominence in pilot hole by the biasing of spring is taken in and is installed in the adapter, to fixedly be arranged at the place, vertical centre position of handle main body in the chou prevention hole closing or leave with this, by this formation is additional in the such scheme, can accesses and use two hand operateds, positively give handle to the so-called T font of sleeve with driving force.

Can not make adapter according to the present invention be that the center is along the side rotation of handle main body week with the handle main body, therefore the rotatory force of giving to adapter from handle main body just can become driving force and conveys to sleeve, provides to drive the box spanner handle that operation (operate tightening of nut etc. and unscrew operation etc.) high efficiency is carried out.

Description of drawings

Fig. 1 is an expression partial cross section front view.

Fig. 2 is a side view of representing Fig. 1 of handle main body with the cross section.

The specific embodiment

Accompanying drawing represented with box spanner of the present invention with a relevant embodiment of handle.

Box spanner among the embodiment is assembled mutually by handle main body 1 and adapter (cap) 2 with handle and forms, handle main body 1 is that the metal straight bar-shaped excellent body of rod of elliptical shape constitutes by the cross section, in the pilot hole 3 with the above-mentioned adapter 2 of this handle main body 1 chimeric insertion, to form box spanner handle A, above-mentioned adapter 2 is provided with the pilot hole consistent with the cross sectional shape of above-mentioned handle main body 13.Upper limb at the two ends of the handle main body 1 of handle A is provided with steel ball 4, the effect of this steel ball 4 is make adapter 2 prevent that when handle main body 1 moves adapter 2 from coming off (by being installed in upper limb, can concern by the position of this steel ball 4 of visual confirmation with adapter 2 thus) from main body 1.In the prevention hole 6 that the middle body setting of handle main body 1 and fixing ball 5 (being formed from steel) combine or leave.

Fixedly ball 5 is received by coil spring 8 and is loaded in the reception hole 7, this reception hole 7 is arranged on the inner peripheral surface of the above-mentioned pilot hole 3 on the adapter 2, fixedly ball 5 is to be contained in the following manner to be installed in the adapter 2, fixedly ball 5 by coil spring 8 from the inner peripheral surface of pilot hole 3 (promptly, in the pilot hole 3) be biased the crimping that continues to the peripheral side of chimeric handle main body 1 by pilot hole 3 to outside projected direction.

Again, adapter 2 has the insertion body 10 that carries out chimeric assembling to sleeve 9, have in this insertion body 10 according to the fixedly ball 11 of spring action to the projected direction biasing, fixedly the wall crimping in the hole, angle 12 that has in ball 11 and the above-mentioned sleeve 9 (or extension bar) is positively assembled adapter 2 and sleeve 9.

So, if the time with the tightening operation and unscrew operation of nut etc., when the situation of the very big moment of torsion of needs, make adapter 2 move to the distolateral of handle main body 1, make this nut etc. and adapter 2 combinations, give the driving force that produces by handle main body 1, just can produce strong moment of torsion, carry out the operation of tightening or unscrewing nut etc. for adapter 2.

And in this operation, can not produce with handle main body 1 is the rotation of the adapter 2 at center, can carry out this operation smoothly thus.

Again, if adapter 2 is disposed at the middle position of handle main body 1, taking in the fixedly ball 5 that is installed on the adapter 2 just is fixed in the prevention hole 6 of handle main body 1 side, form the handle of so-called T font, can carry out the driving operation of nut etc., can make it more be similar to the handle of T font by connect extension bar on adapter 2 this moment.

Handle main body 1 among the embodiment is (just can obviously be found out by the double dot dash line of Fig. 1 and the cross sectional shape of Fig. 2) that makes oval-shaped wide diameter part (major axis) the along continuous straight runs configuration in the cross section of this handle main body 1, this is to be formed at all sides (bottom) of this excellent shaft-like handle main body 1 suitably (reception hole 7 has been taken in fixedly ball 5 and coil spring 8 simultaneously because the fixedly ball 5 of adapter 2 sides configurations fix the prevention hole 6 of (cooperation), the all sides that form the main body 1 of reception hole 7 are approached the easy more formation in plane more, just, the round surface ratio that the round surface that radian is little is bigger than radian is easier to form reception hole 7, can make the edge of opening of reception hole 7 be formed at relatively by under the position), even give moment of torsion (driving force), at least be difficult to bending than minor axis side, can expect durability.

Claims

1. box spanner handle, it is characterized in that the excellent body of rod that handle main body has been installed slip-off preventing usefulness steel ball by two ends forms, on handle main body, adapter is formed in the following manner, above-mentioned handle main body slided in the mode that runs through is embedded in the pilot hole that is provided with on this adapter, the cross sectional shape of above-mentioned handle main body and above-mentioned pilot hole be shaped as mutual consistent ellipse.

2. box spanner handle according to claim 1, it is characterized in that will be by the biasing of spring in pilot hole outstanding fixedly ball take in and be installed in the adapter, will fixedly be arranged at the place, vertical centre position of handle main body in the chou prevention hole closing or leave with this.