Washer, screw or nut with increased coefficient of friction

一种螺栓、垫圈的技术，应用在垫圈,螺栓或螺母领域，能够解决解决办法昂贵、复杂等问题

Inactive Publication Date: 2011-07-27
RUIA GLOBAL FASTENERS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this solution is expensive and complex because of relatively expensive components and additional components

Method used

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  • Washer, screw or nut with increased coefficient of friction
  • Washer, screw or nut with increased coefficient of friction
  • Washer, screw or nut with increased coefficient of friction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] figure 1 is a cross-sectional view of a washer 10 according to the invention, the section being taken along the axis of rotation. The gasket 10 includes an end face 12 facing the workpiece when the gasket 10 is installed. as passed figure 2 and image 3 Seen more clearly, a concentric annular web 14 is connected to this end face 12 .

[0019] as available from figure 2 As can be seen particularly clearly, the region 16 of the end face 12 within the annular rim 14 is arranged to be recessed relative to the workpiece, preferably 0.2 to 0.4 mm deeper than the rim.

[0020] if possible through figure 2 It can be seen more clearly from the detailed view that the area 18 of the end face 12 outside the annular rim 14 is inclined by 1.5 relative to the plane of the workpiece in such a way that the distance between the workpiece and the surface of the gasket 10 increases from the outside towards the web beam 14 to 2.5°.

[0021] as available from figure 2 It is clear...

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PUM

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Abstract

The present invention relates to a washer (10), screw or nut having an end surface (12) which faces toward a workpiece, wherein the end surface (12) is provided with a concentric, annularly encircling web (14), and that region (18) of the end surface (12) which is situated outside the encircling web (14) tapers conically toward the web (14) from the outside, with the inclination from the outside to the inside being directed away from the workpiece.

Description

technical field [0001] The invention relates to a washer, a bolt or a nut having an end face which faces a workpiece and on which a contour which increases the coefficient of friction is provided. Background technique [0002] In the automation industry, the problem is becoming more and more common as the construction space available for connecting components becomes smaller and the forces to be transmitted increase due to higher load carrying capacity and higher requirements. In this environment, some connections (such as struts, push rods, lateral vibration absorbers, etc.) work mainly by lateral forces. According to formula F C =F T / μ T , in order to be able to absorb larger lateral forces (F T ), requiring greater clamping force (F C ) or higher coefficient of friction (μ T ). [0003] Higher clamping forces can only be achieved with greater bolt prestressing. Therefore, this can only be achieved with a larger bolt size or by screwing the bolt in until the yield...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B2/00
CPCF16B2/005F16B39/282F16B43/00F16B2/00F16B33/00F16B39/22
Inventor 托尔斯特恩·施瑞尔
Owner RUIA GLOBAL FASTENERS AG
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