Fix bolt-unfastening preventing structure

A technology for fixing bolts and preventing loosening, which is applied to bolts, screws, nuts, etc., and can solve problems such as maintaining loose force, increasing costs, and unsuitable mass production of fixing bolts

Inactive Publication Date: 2008-02-27
HL MANDO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the above means and methods are difficult to obtain a constant load and maintain loose force after the fixing bolt is loosened at a specific angle.
In addition, there is a problem that the above-mentioned means and methods will increase the number of parts, thereby increasing the cost
[0014] However, in the conventional fixing bolt shown in FIG. 2, there is a problem in that the conventional fixing bolt is not suitable for mass production because the anti-loosening protrusion 210 is processed even more precisely in addition to the thread requiring precision machining. and reduced productivity due to increased working hours
In addition, because when the fixing bolt 110 with the anti-loosening protrusion 210 cooperates with the female thread part, the anti-loosening protrusion 210 will damage the thread bottom of the female thread part, and the male thread part of the fixing bolt 110 will be damaged accordingly.

Method used

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  • Fix bolt-unfastening preventing structure
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  • Fix bolt-unfastening preventing structure

Examples

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Embodiment Construction

[0025] Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings. In the following description and drawings, the same reference numerals are used to designate the same or similar elements, and thus repeated descriptions of the same or similar elements will be omitted.

[0026] 3 is a cross-sectional view of main parts of the fixing bolt loosening prevention structure according to the first embodiment of the present invention. As shown in the figure, the fixing bolt 300 according to the present invention includes a head 310 designed to cooperate with a fastening tool, and a body 315 integrally formed with the head 310 at one surface of the head 310 and formed by a press fit portion. 320 and threaded portion 330 constitute.

[0027] When being fastened to the fixing member 340, the head 310 fitted to the fastening tool includes various types, such as a countersunk head, a round head, a hexagonal head, etc., and may have a...

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PUM

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Abstract

Disclosed is a fix bolt-unfastening preventing structure. The fix bolt unfastening structure includes a fix bolt including a head designed to be fitted to a fastener tool, and a body integrally formed with the head, wherein the body has a threaded portion on a circumferential surface thereof and a press fit portion formed at one end thereof; and a fix member having a press fit hole into which the press fit portion is to be press-fitted. According to the present invention as described above, there is an advantage that in order to prevent unfastening of the fix bolt which is used for connection of various components, the fix bolt is threaded engaged with the fix member while the press fit portion formed at the end of the male screw thread of the fix bolt is press-fitted into the press fit hole formed at an end of the fix member, which enables the reduction of parts and cost and the prevention of unfastening of the fix bolt.

Description

technical field [0001] The invention relates to an anti-loosening structure for fixing bolts. More specifically, the present invention relates to such a fixing bolt anti-loosening structure, which includes a fixing member having a female thread portion and a press-fit hole formed at the end of the female thread portion, and a male thread portion and a press-fit hole formed at the male thread portion. The fixing bolt of the press-fit part of the partial end, wherein the press-fit part of the bolt is press-fitted into the press-fit hole of the fixing member, so that loosening of the fixing bolt can be prevented while reducing parts and cost. Background technique [0002] As is known in the art, there are various fixing bolts such as countersunk bolts, button head bolts, hexagon head bolts, headless bolts and the like. Said fixing bolts, including these various types of bolts, are generally used to connect two elements to each other and to support or press against and connect ...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): F16B39/282F16B35/04
CPCF16B39/28F16B35/048F16B4/004F16B35/044
Inventor朴正植
OwnerHL MANDO CORP