JP2003159661A - Snap spanner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a snap spanner of a simple structure which has the ratchet operation and a high level of holding force obtained by holding and rotating five surfaces of a hexagon nut or the like. <P>SOLUTION: Movable claws 2 and 3 are fitted onto the spanner body 1 from the upside and downside, wherein the movable claws are lightly swung making a shaft 4 a supporting point. The shape to retain the hex nut or the like is made to hold five surfaces. When rotating the handle of the spanner body to the loosening direction, the clamped part with a nut or the like loosens so as to be untied. Reciprocation of the handle leads to smooth work. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is an epoch-making device having a simple structure that has both ratchet operation, which has been impossible with a conventional spanner, and high gripping power by holding and turning the five faces of a hexagonal nut or the like. It's about a new spanner.

[0002]

2. Description of the Related Art A conventional spanner is used by sandwiching two sides of a hexagonal part such as a nut, which is notched in a U shape.

[0003]

(A) When the nut or the like is turned in a narrow place where the handle of the spanner interferes with something, the workability is poor because the nut is frequently inserted and removed. (B) Since only two surfaces such as hexagonal nuts are held, damage to resin nuts and the like becomes a problem. The present invention has been made to eliminate these drawbacks.

[0004]

[Means for Solving the Problem] The movable claws (2) and (3) are aligned with the wrench body (1) from above and below, the shaft (4) is caulked and the movable claw (2) and ( Fix 3). Therefore, the movable claw has a shape in which it swings lightly around the shaft (4) as a fulcrum and a hexagon nut or the like is gripped and tightened by hand. The present invention is a snap spanner configured as described above.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below. The grip portion of the wrench body (1), such as a hexagonal nut, has a hexagonal three-sided shape, and a hole for attaching the movable claws (2) and (3) is provided at the tip thereof.
When the movable claws (2) and (3) are attached thereto by the shaft (4), the structure is such that the movable claws (2) and (3) swing about the fulcrum. The grips of the movable claws (2) and (3) such as hexagonal nuts also have a hexagonal three-sided shape which is the same as the spanner body (1). When the spanner body (1) and the movable claws (2) and (3) are combined, they are attached so that one side of each palm grip portion overlaps, and the grip portion of the combined snap spanner has a shape without one side of a regular hexagon. . Insert a hexagon nut or the like into the palm grip (it can be fitted as if you were gripping it from the vertical or horizontal direction) Turn the handle of the spanner body (1) toward the opening of the palm grip to move the claw ( A strong force for holding the hexagon nut or the like acts on the gripping portions of 2) and 3) and the spanner main body (1), and the hexagon nut or the like can be tightened. Also, if you turn the handle part in the opposite direction, it will loosen so that the grip part will unwind, and you can turn the handle part to the next grip position while keeping the grip part entwined with a hexagonal nut, etc. Repeat the operation. You can quickly close the nut. That is the greatest feature of the present invention.

[0006]

EFFECTS OF THE INVENTION Since hexagonal nuts and the like (particularly non-ferrous metal, resin, etc.) are rotated with five sides held, damage to the nuts and the like is reduced. Now you can work quickly even in tight spaces where there is a lot of interference. An inexpensive ratchet spanner can be manufactured.

[Brief description of drawings]

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

FIG. 2 is a perspective view showing the movement of a movable claw.

FIG. 3 is a perspective view showing the movement of a movable claw.

FIG. 4 is a plan view of the present invention mounted on a nut.

FIG. 5 is a plan view showing a nut rotated according to the present invention.

FIG. 6 is a plan view of the present invention loosened from a nut.

FIG. 7 is a plan view of the present invention being brought to a gripping position of a nut.

FIG. 8 is a plan view in which the nut is held again in the present invention.

[Explanation of symbols]

1 spanner body 2 movable claws 3 movable claws 4 axes 5 knock pins

Claims (4)

[Claims] 1. A spanner body (1) with movable claws (2) and (3).
The movable claw is moved gently around the shaft (4) as a fulcrum to hold hexagon nuts, etc., and the shape is a spanner that holds five sides. 2. A tool for aligning a movable claw (2) with a wrench body (1), which moves lightly around a shaft (4) as a fulcrum to hold a hexagon nut or the like and which holds five sides. 3. A tool for holding a five-sided shape in which a movable claw (2) is fitted to a wrench body (1) and the movable claw moves lightly to hold a hexagon nut or the like. 4. A tool having five sides for holding a hexagon nut or the like by aligning the movable claw (2) with the clamp portion of the wrench body (1) and allowing the movable claw to move lightly.