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Motion Guidance Device

A motion guide, rolling element technology, applied in the direction of linear motion bearings, shafts, bearings, bearings, etc., can solve the problems of roller cage wear, adverse effects on the life of motion guide devices, etc., and achieve the effect of preventing offset

Active Publication Date: 2019-11-12
THK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in this patent document 1, since the roller cage is in contact with the raceway, the resin-made roller cage is worn, and debris generated by the wear enters the rolling surface of the roller, thereby affecting the motion guide device. adverse effect on lifespan

Method used

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Examples

Experimental program
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Embodiment Construction

[0051] Hereinafter, the structure and function of each part of the present invention will be described in detail with reference to the drawings. In addition, in the following description, the same code|symbol is attached|subjected to the same or a corresponding member or structure, and a repeated description is abbreviate|omitted.

[0052] Such as figure 1 and figure 2 As shown, a linear guide 1 as one type of motion guide device includes a rail 2 and a moving block 3 movably attached along the rail 2 , and the moving block 3 relatively linearly moves in the longitudinal direction of the rail 2 . In addition, the rail 2 is attached to a fixed side such as a base, and the moving block 3 is used to attach a guided object such as a table.

[0053] And, if figure 1 As shown, the moving block 3 includes a slider 3a, an end cover plate 3b that is respectively arranged on the slider 3a at both ends in the moving direction of the slider 3a, and an end cover plate 3b that is arrang...

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PUM

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Abstract

The invention provides a movement guiding device. The movement guiding device is provided with a bearing body, a moving body and a rolling body, wherein the bearing body is provided with bearing body side rolling body rolling faces, the moving body is provided with moving body side rolling body rolling faces opposite to the bearing body side rolling body rolling faces, and the rolling body is arranged between the bearing body side rolling body rolling faces and the moving body side rolling body rolling faces and can roll. In the movement guiding device, the moving body is provided with protrusion parts opposite to chamfering parts of the end face of the rolling body in the width directions of the moving body side rolling body rolling faces. Thus, in the movement guiding device, the protrusion part can be used for keeping the rolling body so that the rolling body can be prevented from deviating.

Description

technical field [0001] The present invention relates to a motion guide device, and more specifically, to a motion guide device including a protrusion that holds a rolling element and prevents the rolling element from shifting. Background technique [0002] A linear guide, which is one type of motion guide device, includes a rail and a moving block attached so as to be movable along the rail. A plurality of rollers capable of rolling motion are arranged between the rail and the moving block. A plurality of rollers circulate in an annular roller circulation path, which includes: a track side roller rolling surface set on the track and a track side set on the moving block and connected to the track The load path formed by the roller rolling surface of the moving block side facing the roller rolling surface, the no-load path set on the moving block and parallel to the load path, and the end of the load path and the unloaded path set on the moving block A U-shaped direction cha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C29/06
Inventor 石井正志李仁东王士伟秦月岛村武志
Owner THK CO LTD