JPH04118975U - adjustable wrench - Google Patents

Abstract

(57) [Summary] (with amendments) [Purpose] An adjustable wrench that allows you to freely change the diameter, making it extremely easy to tighten and loosen bolts and nuts in very narrow working spaces, such as in the engine room of a car. Provide something that can be done efficiently. [Structure] The overall length of the wrench itself has been shortened, and in order to compensate for the lack of torque due to this shortening, square holes 3 for engaging drive tools are provided at the handle end of the fixed jaw 1 and one end of the movable jaw 4, respectively.
5 will be provided. To ensure secure engagement with bolts and nuts,
A hexagonal part 6a for engaging a spanner is integrally provided at one end of the worm 6.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to a wrench for tightening and loosening bolts and nuts. Regarding adjustable wrenches that can be changed.

0002

[Conventional technology and problems]

Conventional wrenches of this type generate tightening and loosening torque on the wrench itself, so the handle The part is long. However, the engine room of modern cars has many parts in a small space. Due to the condensed nature of the product, the work space is extremely small, so it is difficult to use a regular long-handled lens. If the handle is used, the handle often interferes with the parts, making it impossible to work efficiently. Occurred.

0003

[Means and actions to solve the problem]

This invention was specially devised in view of the above, and it shortens the overall length of the wrench itself. To compensate for the lack of torque caused by shortening the comb, the handle end of the fixed jaw and the movable A square hole is provided on one side of each jaw for engaging drive tools, and bolts and nuts are securely attached. A hexagonal part for engaging a wrench shall be integrally provided at one end of the worm so that it can be engaged with the This makes it easy to securely tighten and loosen bolts and nuts even in extremely narrow work spaces. It was done so that it could be done.

0004

【Example】

Next, a detailed description will be given according to the embodiments shown in the drawings. The fixed jaw 1 is formed into an L-shape, with one end serving as a bolt/nut engagement portion 1a and the other end serving as a handle. It is part 1b. A rack 2 is carved on the lower side of the handle 1b. In addition, the rear end of the handle 1b is equipped with drive tools such as a ratchet handle and a spinner handle. A square hole 3 for engagement is bored. The movable jaw 4 has a bolt/nut engagement part 4a at its lower part and a mounting part 4b at its upper part. has been done. A square hole 5 for engaging a driving tool is bored above the mounting portion 4b. In addition, a worm 6 is pivotally supported below the mounting portion 4b by a pin (not shown). It is. This worm 6 is integrally provided with a hexagonal part 6a for engaging a spanner on one side thereof.

[0005] When using the present invention, engage the present invention with bolts and nuts to be tightened and loosened, In particular, firmly tighten the hexagonal part 6a of the worm with a wrench so that it does not come off inadvertently. Next, depending on the work space, you can use a retractable spinner handle or a ratchet handle. Engage the dollar with the square hole 3 or 5 provided in the movable or fixed jaw and rotate it. This allows tightening and loosening of bolts and nuts.

[0006]

[Effects of this invention]

As described above, according to the present invention, the overall length of the wrench can be shortened and other drive tools can be used. Depending on the space situation, there is a square hole 3 drilled in the fixed jaw or a square hole drilled in the movable jaw. By attaching it to either hole 5, it can be used in situations where the work space is extremely narrow. Tightening and loosening work can be done efficiently at any location, and engagement with bolts and nuts can be done with a worm. This can be done reliably by tightening the hexagonal part integrally provided at one end with a spanner. It has excellent practical effects.

[Brief explanation of drawings]

FIG. 1 is an embodiment of the present invention.

[Explanation of symbols]

1. Fixed jaw 2. rack 3. square hole 4. movable jaw 5. square hole 6. worm 6a. hexagonal part

Claims (1)

[Scope of utility model registration request] [Claim 1] It is formed in an L-shape, with one side serving as a bolt/nut engagement part and the other as a handle, with a rack carved on the lower side of the handle, and a rear end of the handle for engaging a driving tool. a fixed jaw with a square hole drilled therein, and one attached to the handle of the fixed jaw;
An adjustable wrench consisting of a movable jaw equipped with a worm having a square hole for engaging a drive tool at the top and a hexagonal part for engaging a spanner at the bottom.