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Open end wrench capable of rapidly and back-and-forth wrenching

An open-end wrench, fast technology, applied in the field of wrenches, can solve the problems of concave arc surface stress concentration, thinning, cumbersome processing, etc., to achieve the effects of avoiding stress concentration, good structural strength, and improving stability

Active Publication Date: 2014-03-19
刘文斌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0024] Due to the complex shape of the swinging block of this type of wrench, the processing process is cumbersome, and the second jaw must be provided with a concave arcuate surface on both sides of the hollow groove to accommodate the swinging block , due to the concave arc surface, the width of the second jaw is relatively thinner, so in addition to reducing the strength of the second jaw, it is also easy to generate stress concentration on the concave arc surface, which is not a good design

Method used

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  • Open end wrench capable of rapidly and back-and-forth wrenching
  • Open end wrench capable of rapidly and back-and-forth wrenching
  • Open end wrench capable of rapidly and back-and-forth wrenching

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Embodiment Construction

[0070] Regarding the technology, means and effects used in the present invention, a preferred embodiment is given and described in detail below with drawings, which are for illustration purposes only, and are not limited by this structure in the patent application.

[0071] refer to Figure 1 to Figure 4 , is the first embodiment of the open-end wrench that is pulled back and forth quickly in the present invention. The open-end wrench 10 of the present invention includes a body 20, a slider 30, a spring seat 40 and an elastic body 50; wherein:

[0072] The main body 20 has a gripping portion 21 and a jaw 22 disposed at one end of the gripping portion 21 . Jaw 22 can engage work object 90 (see Figure 5 and Figure 6 ), such as the hexagonal head of the bolt, when the working object 90 is the hexagonal head of the bolt, the six force-bearing surfaces are arranged counterclockwise in a ring at the six o'clock direction of the hexagonal head, which is the first positive force-...

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Abstract

The invention discloses an open end wrench capable of rapidly and back-and-forth wrenching, which is provided with a gripping jaw and a slider, wherein the gripping jaw is internally provided with an arc-shaped chute; due to having a slip plane, the slider can be arranged in the chute and generates a relative arc slip relationship; the slider has a guiding groove which is used for penetration and extension of a guiding column fixedly arranged in the chute; the guiding groove is provided with an abutting end, and when the slider is at the natural position, the abutting end of the guiding groove is contacted with the guiding column; the guiding groove is internally provided with a spring seat and an elastomer arranged between the spring seat and the guiding column in a combined mode, and the slider can automatically return to the natural position by virtue of the elasticity of the elastomer; and the spring seat is provided with a positioning part which can prevent the elastomer from generating displacement in the guiding groove relative to the spring seat, and enhances the stability in the wrenching process.

Description

technical field [0001] The invention relates to a wrench, especially an open-end wrench capable of withstanding high torsion wrenching and fast reciprocating wrenching of an elastic body that does not arbitrarily turn over and deviate from its original position. Background technique [0002] Please refer to U.S. Patent No. 1,320,668 "Wrench, Shifting-Spanner, Pipe-TongsAnd The Like" patent case, which is a multi-purpose wrench (wrench), and the wrench has a stationary jaw (stationary jaw) and a movable jaw ( movable jaw), the movable claw can slide back and forth on the guide rail (guide) through the push of a spring (spring). When the user wants to turn the nut, turning the wrench allows the fixed claw and the movable claw to drive the nut to rotate. When the user intends to move the wrench to the next turning position, turning the wrench in the opposite direction can make the movable claw retreat and compress the spring without driving the nut to rotate. The effect of lo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B25B13/46B25B23/00
Inventor 刘文斌
Owner 刘文斌