JPH0751254Y2 - Auxiliary tool for tightening body rotation - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tightening body rotating auxiliary tool for tightening bolts, hexagon socket head cap screws, and the like.

[0002]

2. Description of the Related Art Conventionally, for example, Japanese Utility Model Laid-Open Nos. 57-118165 and 1-10
A wrench with a universal joint according to No. 1772 has been proposed. However, in these universal joint wrenches, the sockets fitted in the bolts cannot be replaced, and the universal joint wrenches must be prepared for each bolt size.

Further, for example, a conventional L-shaped wrench, T
Shaped wrench, etc. must be held in a straight state with respect to the bolt shaft core of the hexagon socket head cap screw and rotated, and the hexagon socket head cap screw must be screwed into a narrow space where equipment or the like is protruding. If you do it is very annoying.

In this respect, in the case of a so-called ball point wrench having a ball-shaped portion at its tip, it is possible to incline the wrench to some extent with respect to the bolt shaft core of the hexagon socket head cap bolt. However, the inconvenience of workability is not completely wiped out. SUMMARY OF THE INVENTION The present invention solves the above problems and provides a tightening body turning auxiliary tool that improves the workability of screwing a bolt or a hexagon socket head cap screw.

[0005]

The gist of the present invention will be described with reference to the accompanying drawings.

A bolt rotating portion 3 which is connected to a tightening body 2 such as a bolt or a hexagon socket head cap bolt at the lower end of the base body 1 in a non-rotating state.
On the other hand, a flat cross section into which the ball-shaped portion 4 of a ball point wrench 5 in which a ball-shaped portion 4 having a hexagonal flat cross section is connected to the upper end of the base 1 through a narrowed portion 9 is just fitted. A hexagonal fitting hole 6 having a depth substantially equal to the length of the ball-shaped portion 4 is provided, and the fitting hole 6 has an opening 7 having a diameter substantially equal to the maximum diameter portion of the ball-shaped portion 4. The opening 7
The present invention relates to an auxiliary tool for rotating a tightening body, characterized in that a fitted cap 8 having a vicinity 7'of a flexible material is provided.

In the auxiliary tool for rotating a tightening body such as a bolt according to claim 1, a hexagon socket head cap bolt is used as the tightening body 2, and the bolt rotating portion 3 has a ball-like shape in the narrow constricted portion 3 ". The present invention relates to an auxiliary tool for rotating a tightening body, which employs a bolt rotating portion 3 having a structure in which the portions 3'are connected.

A bolt rotating portion that is connected to a tightening body 21 such as a bolt or a hexagon socket head cap bolt at the lower end of the lower base body 20 in a non-rotating state.
22 is provided, while a lower connecting body 25 is provided with a ball-shaped portion 24 having a hexagonal plane cross-section on the upper end of the lower substrate 20 via a narrowed constricted portion 23
And a fitting hole 27 having a hexagonal cross section into which the ball-shaped portion 24 is just fitted and having a depth substantially equal to the length of the ball-shaped portion 24 is provided at the lower end of the upper base 26. The fitted cap 2 having an opening 28 having a diameter substantially equal to the maximum diameter of the ball-shaped portion 24 and forming a vicinity 28 'of the opening 28 with a flexible material.
The present invention relates to a tightening body rotation assisting tool that includes 9 and an upper connecting body 32 that has an upper connecting portion 31 that is connected to the wrench 30 at the upper end of the upper base 26.

[0009]

The operation of the device according to claims 1 and 2 will be described.

The fitting cap 8 is fitted into the fitting hole 6 of the base body 1, and the ball-shaped portion 4 of the ball point wrench 5 is press-fitted into the opening 7 of the fitting cap 8 to fit the ball-shaped portion 4 into the fitting hole 6.
Fit in.

In this way, the product of the present invention is connected to the ball point wrench 5, and the tightening body 2 such as a bolt is screwed to an appropriate member by the bolt rotating portion 3 of the base 1.

According to the second aspect of the invention, since the bolt rotating portion 3 is formed in the ball-shaped portion 3 ', the base body 1 is located at the portion "a" in FIG. Can be tilted and the ball point wrench 5 can be tilted with respect to the base body 1 at the portion b, so that the screwing operation of the tightening body 2 can be performed satisfactorily.

Further, the fitting cap 8 is fitted into the fitting hole 6, and the opening 7 of the fitting cap 8 has a diameter substantially equal to the maximum diameter portion of the ball-shaped portion 4 of the ball point wrench 5. The shaped portion 4 does not slip out of the fitting hole 6.

Further, since the vicinity 7'of the opening 7 of the cap 8 to be fitted is made of a flexible material, the pressure applied to the fitting hole 6 of the ball-shaped portion 4 and the fitting hole 6 of the ball-shaped portion 4 from the fitting hole 6 are adjusted. It can be pulled out easily.

The operation of the device according to the third aspect will be described.

A fitting cap 29 is fitted into the fitting hole 27 of the upper base body 26, and the ball-shaped portion 24 of the lower base body 20 is press-fitted into the opening 28 of the fitting cap 29 so that the ball-shaped portion 24 is fitted into the fitting hole 27. Then, the wrench 30 is connected to the upper connecting portion 31 of the upper base 26.

In this way, the lower connecting body 25 and the upper connecting body 32 are connected to the wrench 30, and the tightening body 21 such as a bolt is screwed to the member at the bolt rotating portion 22 of the lower connecting body 25.

Further, the fitting cap 29 is fitted in the fitting hole 27, and the opening 28 of the fitting cap 29 has a diameter substantially equal to the maximum diameter portion of the ball-shaped portion 24 of the lower connecting body 25. The ball-shaped portion 24 does not come out of the fitting hole 27.

Further, in the vicinity 2 of the opening 28 of the cap 29 to be fitted.
8'is made of flexible material, so the ball-shaped part 24's insertion hole
The press-fitting into the 27 and the withdrawal of the ball-shaped part 24 from the fitting hole 27 can be easily performed.

[0020]

1 is an embodiment according to the invention described in claim 1, FIG. 2 is an embodiment according to the invention described in claim 2, and FIGS. 3 and 4 are embodiments according to the invention described in claim 3.

FIG. 1 shows a first embodiment, in which a base 1 is provided with a bolt rotating portion 3 having a regular hexagonal cross section.

The fitting cap 8 is made of synthetic resin and has two divided halves polymerized and fixed. The fitting cap 8 is provided with radial notch grooves 10 to give elasticity to the vicinity 7'of the opening 7 as much as possible.

In the case of FIG. 1, the ball-shaped portion 4 of the T-shaped ball point wrench 5 is fitted into the fitting hole 6 of the base body 1.

FIG. 2 shows a second embodiment in which a ball-shaped portion 3'is adopted as the bolt rotating portion 3 of the base 1.

Further, unlike the case of FIG. 1, the fitted cap 8 has a lower end flange 12 in a concave groove 11 provided near the upper portion of the base 1.
It is a structure that locks.

3 and 4 show a third embodiment, in which the upper connecting portion 31 of the upper connecting member 32 is provided with locking balls 33 projecting and retracting on its side surface. When inserted into the hole 34, the locking ball 33 connects the wrench 30 and the upper connecting body 32.

The fitting cap 29 is made of synthetic resin and is formed by polymerizing two divided halves.

Reference numeral 35 in the drawing is a locking projection.

At the lower end of the lower connecting body 25, there is provided a bolt rotating portion 22 having a hexagonal hole 36 having a regular hexagonal cross section.

A ridge 37 is provided on the inner top surface of the fitting hole 27 to prevent the ball-shaped portion 24 from floating in the fitting hole 27.

[0031]

Since the present invention is constructed as described above, it is possible to easily replace the base 1 and the lower connecting body 25 by appropriately replacing the bolt rotating portions 3 and 22 with any size. Since it is possible to tighten bolts with a diameter, and if ball-shaped parts are used for the bolt rotation parts 3 and 22, there are two parts that can be tilted with respect to the axis of the hexagon socket head cap screw. Therefore, it is possible to provide an excellent auxiliary tool for rotating a tightening body, which can be rotated with a hexagonal hole in such a narrow space.

[Brief description of drawings]

FIG. 1 is a perspective view of a first embodiment of the present invention.

FIG. 2 is a sectional view of an essential part of a second embodiment of the present invention.

FIG. 3 is an exploded perspective view of an essential part of a third embodiment of the present invention.

FIG. 4 is a sectional view of an essential part of a third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base 2 Fastening body 3 Bolt rotating part 3'Ball-shaped part 3 "Narrowed part 4 Ball-shaped part 5 Ball point wrench 6 Fitting hole 7 Opening 7'near 8 Fitted cap 9 Narrowed part 20 Lower base 21 Tightening Body 22 Bolt rotation part 23 Constriction part 24 Ball-shaped part 25 Lower connecting body 26 Upper base 27 Fitting hole 28 Near opening 28 '29 Fitted cap 30 Wrench 31 Upper connecting part 32 Upper connecting body

Claims (3)

[Scope of utility model registration request] 1. A bolt rotating portion 3 which is connected to a tightening body 2 such as a bolt or a hexagon socket head cap in a non-rotating state is provided at the lower end of the base body 1, while a narrow constricted portion is provided at the upper end of the base body 1. A ball point wrench 5 in which a ball-shaped portion 4 having a hexagonal plane cross section is continuously provided via 9 is made into a hexagonal plane cross section into which the ball-shaped portion 4 is just fitted, and the length is substantially equal to the length of the ball-shaped portion 4. A fitting hole 6 having a depth is provided, and an opening 7 having a diameter substantially equal to the maximum diameter portion of the ball-shaped portion 4 is provided in the fitting hole 6 and a portion 7'in the vicinity of the opening 7 is formed of a flexible material. An auxiliary tool for rotating a tightening body, which is provided with a cap 8 to be fitted. 2. The auxiliary tool for rotating a tightening body such as a bolt according to claim 1, wherein a hexagon socket head cap bolt is used as the tightening body 2, and the bolt rotating portion 3 has a narrow constricted portion 3 ". An auxiliary tool for rotating a tightening body, characterized in that a bolt rotating portion 3 having a structure in which ball-shaped portions 3'are connected is adopted. 3. A bolt rotating portion 22 connected to a tightening body 21 such as a bolt or a hexagon socket head cap bolt in a non-rotating state is provided at the lower end of the lower base body 20, while a small diameter is provided at the upper end of the lower base body 20. A lower connecting body 25 provided with a ball-shaped portion 24 having a hexagonal cross section through the constricted portion 23.
And a fitting hole 27 having a hexagonal cross section into which the ball-shaped portion 24 is just fitted and having a depth substantially equal to the length of the ball-shaped portion 24 is provided at the lower end of the upper base 26. The fitted cap 2 having an opening 28 having a diameter substantially equal to the maximum diameter of the ball-shaped portion 24 and forming a vicinity 28 'of the opening 28 with a flexible material.
An auxiliary tool for rotating a tightening body, which is provided with 9 and on the other hand, an upper connecting body 32 provided with an upper connecting portion 31 connected to the wrench 30 at the upper end of the upper base body 26.