JPS5837556Y2 - wrench - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a wrench that can be applied to bolts or nuts of different sizes by appropriately adjusting the interval between the clamping parts.

Bolts and nuts come in various sizes, and even if they are the same size according to the standard, there may be slight differences depending on the manufacturer.

Therefore, there is a strong need for a wrench that can be applied to nuts of any size by appropriately adjusting the spacing between the clamping parts.

This invention was provided in response to the above-mentioned demands.

This invention will be explained in detail below with reference to illustrated embodiments.

In this specification, the vertical and horizontal relationships are based on FIG. 1.

In the figure, 1 and 2 are a pair of left and right halves that form the main body of the wrench according to this invention, and the left half 1 has a flat left handle 3 and an upper end thereof that is provided in an upwardly projecting manner on the left side. The right side half 2 consists of a left clamping part 4 having a square cross section, and a right clamping part 4 having a square cross section. It consists of part 6.

These left and right pairs of halves 1 and 2 are stacked on each other at the handle portions 3 and 5, and a pair of clamping portions 4 and 6 are opposed in parallel with each other with the respective rising portions 4a and 5a inside. .

7 and 8 are oblique long holes drilled downward to the right in the upper and lower ends of the left handle 3, and 9.10 correspond to the oblique oblong holes 7 and 8 in the upper and lower ends of the right handle 5, respectively. The circular through holes 19 and 20 are a pair of upper and lower fixing devices for fixing the pair of superposed halves 1 and 2, and the upper fixing device 19 is connected to the upper oblique elongated hole 7 and It consists of a screw 11 passed through the upper circular through hole 9 from the right half-hole 2 side via a washer 12, and a nut 14 screwed onto the through end of the screw 11 via a washer 13.

The protruding portion of the screw 11 protruding from the nut 14 is caulked to prevent it from coming off.

The pair of left and right halves 1 and 2 are tightened loosely by the screw 11 and nut 14 so that these halves 1 and 2 can slide relative to each other in the left and right direction.

On the other hand, the lower fixing device 20 includes a thumbscrew 15 which is also passed through the lower oblique elongated hole 8 and the lower circular through hole 10 from the right half 2 side via a washer 16, and a washer 17 at the penetrating end.
It consists of a nut 18 screwed together via a nut 18.

The lower ends of the pair of halves 1 and 2 are secured with thumbscrews 15 and nuts 18 to prevent them from sliding against each other during use.
It is tightly fixed by tightening.

Note that the upper fixing device may also be made of a thumbscrew and a nut like the lower fixing device 20.

When using the wrench with the above configuration for a large-sized nut, first loosen and loosen the lower fixing tool 20.
Next, the right half 2 is shown by the chain line in FIG. 1 relative to the left half 1 so that the pair of upper and lower fasteners 19 and 20 are moved to the rightmost lower ends of the vertically inclined elongated holes 7 and 8, respectively. Slide it to the right as shown.

Finally, tighten the thumb screw 15.

As a result, the pair of clamping portions 4 and 6 are expanded in width while remaining substantially parallel to each other.

When applying this wrench to a small-sized nut, loosen the lower fastener 20, slide the right half 2 against the left half 1 in the opposite direction, and then tighten the lower fastener 20. By tightening the pair of clamping parts 4,
Just shorten the width of 6.

The wrench according to this invention is constructed as described above.

By loosening the fixing tool and sliding the pair of half-holes in the left-right direction relative to each other, the distance between the pair of clamping parts can be adjusted as appropriate, and the oblique elongated holes are provided above and below the left half-hole. Therefore, the gap between the pair of left and right clamping parts can be adjusted while keeping them substantially parallel at all times.

Therefore, with this wrench, it is possible to reliably collect nuts of any size.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention, and FIG. 1 is a front view of the wrench, and FIG. 2 is a side view of the wrench. 1...Left half rest, 2...Right half, 3
...Left handle part, 4...Left side clamping part, 5
...Right handle part, 6...Right side clamping part, 7
... Upper oblique long hole, 8 ... Lower inclined elongated hole, 9 ... Upper circular through hole, 10 ... Lower circular through hole, 19 ... ...Top fixing tool, 20...
...Lower fixing device.

Claims (1)

[Scope of utility model registration request] The left side half 1 consists of a flat left handle 3 and a left clamping part 4 provided upwardly protruding on the left side of the upper end of the left half 1, and a right handle 5 that is also flat and has a left side handle 5 that is also flat on the left side of the upper end. The right side half body 2 consists of a right side clamping part 6 provided in a protruding shape,
A pair of clamping parts 4 and 6 are overlapped in each of the handle parts 3 and 5, and are opposed to each other, and elongated holes 7 and 8 are formed in the upper and lower ends of the left handle part 3, respectively, slanting downward to the right. ,
On the other hand, circular through holes 9 and 10 are bored in the right side handle part 5 at positions corresponding to the pair of oblique elongated holes 7 and 8, and the left and right pair of halves 1 and 2 are connected to the upper oblique elongated hole 7. and upper circular transparent (L
The wrench is fixed by an upper fixing member 19 passing through the hole 9 and a lower fixing member 20 passing through the lower oblique elongated hole 8 and the lower circular through hole 10.