JPH0617873U - Retractable spanner - Google Patents

Abstract

(57) [Abstract] [Purpose] This invention is to repeat tightening with the wrench inserted in the nut without removing it. [Structure] Grip 1, left grip 2, right grip 3,
Is connected with the shaft 6 and the holder 7.

Description

[Detailed Description of the Invention] In conventional spanners, when tightening is repeated, the nuts and bolts are removed one by one and then reinserted for tightening.

 With this plan, tightening is repeated with the wrench inserted, which saves labor.

 In the configuration of this plan, the wrench is divided into three parts, the left and right grips and the grip, and they are connected by a shaft and a shaft holder.

 In order to tighten the nut with this plan, the grip part is held in the hand, and the two points of action of the grip part transmit the force to the left and right grips by the movement of turning the shaft of the grip on the fulcrum, and the grip part tightens the nut. While the movement of the spanner turns the nut. This is done by turning the grip 1 in Fig. 1 clockwise about its axis 4. By turning the grip part in the opposite direction, the nut is loosened and the nut thread can be fed without removing the spanner.

 Protrusion 7 in Fig. 1 prevents the gripper from closing too much. The two-axis method in Fig. 3 omits the number of component parts. Two cut grooves are provided in 2 in the left gripper part in Fig. 3, and the right gripper part and the grip part are inserted into the grooves and connected with the shaft 6. I will. In this case, a play hole 8 is provided to accommodate nuts with slightly different dimensions.

 For the work in a narrow space, if the notches on the left and right grips are provided with 10 in Fig. 5 or 11 in Fig. 6, the spanner does not have to be returned much and the tightening can be repeated.

[Brief description of drawings]

1] Front view of a 3-axis spanner

FIG. 2 is a right side view of the triaxial spanner.

FIG. 3 is a front view of a biaxial spanner

FIG. 4 is a right side view of the biaxial spanner.

FIG. 5 is a partial front view of a biaxial spanner provided with a notch.

FIG. 6 is a partial front view of a spanner in which the notch portion of FIG. 5 is omitted.

[Explanation of symbols]

 1 is a grip portion 2 is a left grip portion 3 is a right grip portion 4 is a shaft retainer 5 is a shaft holder 6 is a shaft 7 is a protrusion 8 is a play hole 9 is a point of action 10 and 11 are notches

Claims (1)

[Scope of utility model registration request] 1. A spanner comprising three parts, a right side and a left side of a part for holding a nut, and a grip part, which are connected by a connecting tool. When the nut is tightened, the holding part is closed, and a spanner When returning, that is, when feeding the mountain of the nut, the holding part loosens, and the nut is repeatedly tightened without removing the spanner from the nut.