Ratchet spanner

Abstract

A ratchet wrench is composed of a wrench with a through hole on its head, a drive body in said head and with extended two ends, a commutating block in said head and engaged with the lateral surface of said drive body, a toggle device in said head, arranged on one extended end of drive body and with a drive plate, a control knob for continuously driving said toggle device, and a commutating switch for controlling the direction of said commutating block.

Description

technical field [0001] The invention relates to a ratchet wrench, in particular to a ratchet wrench which has a stable reversing effect, is not prone to deformation failures, improves product yield, and achieves stable quality and long service life. Background technique [0002] The wrench occupies a very important position in the field of hand tools, and the types of wrenches have developed into many different types. Wrenches are needed in daily life or in the general industry, and they are indispensable hand tools for on-site work; especially Taiwan The ability to produce wrenches is also the first in the world, which is already a fairly crowded field, so many small problems are the driving force for improvement. Whether it is product quality or practical effects, it is the problem that the industry is most eager to improve at present. [0003] Please refer to the ratchet wrench patent case of No. 404298 of my country's patent announcement, which is mainly to establish a d...

AI Technical Summary

Problems solved by technology

[0004] The existing structure still has many disadvantages in practice, because the dialing piece 70 is made of a spring, and it is easy to be bent and deformed due to excessive force when the dialing piece 70 is shifted by the deflection. In actual use, in the reversing operation, the problem of inaccurate reversing between the driving body 20 and the reversing block 30 often occurs, and it is easy to have the disadvantage of being stuck or unable to reversing

[0005] And the toggle piece 70 that spring is made is under long-term use, is easy to because of the shearing force extrusion between many components such as reversing block 30, toggle device 40, head 12, and control knob 50. , the disadvantage of causing the spring to deform and twist, which in turn leads to the failure of the entire wrench 10

And this shortcoming has caused the manufacturer's product replacement rate to increase, resulting in a problem that the product defect rate has increased significantly, which also affects the sales quality and reputation. This kind of design that does not meet the industrial use is very impractical, so there is a need for improvement.

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