Bolt having a rotation preventing mechanism

A rotating mechanism and anti-rotation technology, which is applied in the direction of bolts, screws, nuts, etc., can solve the problems of slow loosening of bolts and nuts and the inability to maintain fastening force for a long time, and achieve the effect of maintaining fastening force

Active Publication Date: 2012-10-03
TAKIGEN MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of using bolts and nuts to fasten components to a machine subjected to the above-mentioned severe shock or vibration, in the existing means for preventing the bolts and nuts from loosening, there is a problem that as the machine is repeatedly subjected to severe shock or vibration, Vibration, bolts and nuts loosen slowly, unable to maintain stable fastening force for a long time

Method used

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  • Bolt having a rotation preventing mechanism
  • Bolt having a rotation preventing mechanism
  • Bolt having a rotation preventing mechanism

Examples

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Embodiment Construction

[0070] Next, embodiments of the present invention will be described with reference to the drawings. figure 1 shows the bolt 1 with anti-rotation mechanism. The bolt 1 with anti-rotation mechanism includes: a shaft part 10 having a male thread 11 on the front end side of the shaft part 10; There are teeth 211 on the periphery of the shaft portion 10 and on the joint surface 210 opposite to the periphery of the bolt insertion hole P0 provided on the fastened part P; a spring device 30 that faces the head 20 toward Press and apply force around the bolt insertion hole P0 of the fastened part P; around the hole P0 and has teeth 611 capable of meshing with the teeth 211 of the head 20 .

[0071] figure 2 The middle indicates the shaft portion 10 . Such as figure 2 As shown, the shaft portion 10 is made of metal materials such as stainless steel, and has an approximate cylindrical shape as a whole. A male thread 11 is formed on the front end side of its outer peripheral surfac...

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PUM

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Abstract

This invention provides a bolt difficult to be loosened, and capable of maintaining a stable tightening force over a long period. The bolt 1 includes a shaft 10 having a male screw 11 in a front end side thereof, a head 20 attached on a base end side of the shaft 10 such that it is slidable on the shaft 10 in an axial direction and rotatable integrally with the shaft 10, and having teeth 211 on a seating surface 210 thereof, a spring 30 pressing and biasing the head 20 toward a tightened member P, and a detent base 60 fixed on the tightened member P and having a plurality of teeth 611, wherein the teeth 211 of the seating surface 210 of the head are pressed against and engaged with the teeth 611 of the detent base 60, so as to stop rotation of the shaft 10.

Description

technical field [0001] The present invention relates to a bolt with an anti-rotation mechanism, in particular to a bolt with an anti-rotation mechanism for detachably fixing components on various machines subject to severe impact or vibration. Background technique [0002] When components are fastened to various machines using bolts and nuts, the bolts may loosen due to vibration of the machine. Therefore, in order to prevent such bolts from loosening, various measures have been taken so far. Generally, a spring washer is installed between the joint surface of the bolt or nut and the fastening surface of the machine, so that a supporting force is always generated between the supporting surface of the bolt or nut and the fastening surface, thereby preventing the bolt from loosening; The tightened nuts are superimposed on the bolts and the nuts are tightened to prevent loosening, and the bolts do not loosen due to the mutual tightening of the so-called double nuts. This tech...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B39/22F16B35/00
CPCF16B35/041F16B39/028F16B39/282F16B39/32F16B39/38
Inventor 濑川志朗
Owner TAKIGEN MFG CO LTD
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