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ratchet wrench

A technology of ratchet wrench and ratchet, which is applied in the field of ratchet wrench, which can solve the problems of reducing gear teeth, construction of wrench in narrow space, limitation, etc., and achieve the effect of reducing the swing angle

Active Publication Date: 2022-05-24
陈怡富
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the number of teeth that can be set on the ratchet is limited by the size of the ratchet. The number of common teeth is mostly 72 teeth, and the necessary swing angle of the wrench is 5 degrees. With the development of technology, the objects are getting smaller and smaller, and the installation of various appliances The more crowded the ratchet wrench, the smaller the necessary swing angle is, the demand is increasing. If you want to reduce the swing angle, you must continue to increase the number of teeth, but increasing the number of teeth without changing the size of the ratchet will reduce the bearing capacity of the teeth. If the size of the ratchet is increased, the wrench will not be able to work in a narrow space. How to develop a ratchet wrench that can further reduce the necessary swing angle without changing the size of the ratchet and the number of teeth of the ratchet is an urgent problem to be solved today.

Method used

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Examples

Experimental program
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Embodiment Construction

[0066] The present embodiment takes the type of ratchet having a sleeve linking part as an example, e.g., Figures 1 through 2Is a ratchet wrench, which comprises: a body 1, its opposite end is a head 2 and a handlebar 3, the head 2 has a displacement groove 21, the capacitive groove 21 additionally runs through a wheel axle perforation 225 and a reversing piercing 226; a ratchet 4, the ratchet 4 has a wheel part 41, the ratchet 4 pivot is located in the head 2 axle perforation 225, the wheel part 41 is located inside the container 21, the wheel part 41 side ring is provided with several wheel teeth 52; a forward puller group 5, It is located in the tolerance groove 21 and grouped to the capacitive groove 21, the forward actuation group 5 includes a first actuator 51 and a second actuator 52, the first actuator 51 one end set is disposed in the capacity slot 21 and the other end having a plurality of gear teeth 42 of the several first bite teeth 511, the second actuation block 52 o...

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Abstract

The invention relates to a ratchet wrench, which includes a head, and a ratchet, a positive braking group, a reverse braking group, and a reversing member are built in the head. By switching the reversing member, the forward braking group, the reverse The braking group abuts against the ratchet, and when the ratchet is rotated, each of the detents contained in the braking group abutting against the ratchet engages the ratchet alternately, so as to reduce the necessary swing angle of the ratchet wrench.

Description

Technical field [0001] The present invention is a ratchet wrench for reciprocating pulling locking screws. Background [0002] Ratchet wrench is roughly divided into ratchet has a form of a hole, for example, Taiwan Patent I647072, or ratchet has a sleeve connection part in the form of a connecting sleeve, for example, Taiwan patent M576088. The greater the number of teeth of the ratchet, the smaller the necessary swing angle of the wrench, which is conducive to the construction of a narrow area. But the number of ratchet teeth can be set limited by the size of the ratchet, the number of common teeth is mostly 72 teeth, the necessary swing angle of the wrench is 5 degrees, with the development of science and technology, the items are getting smaller and smaller, the various appliances are more and more crowded, for the necessary swing angle is smaller Ratchet wrench can be said to be more and more demanded, if you want to reduce the swing angle must continue to increase the numbe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B25B13/46
CPCB25B13/463
Inventor 陈怡富
Owner 陈怡富
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