公开(公告)号：US20040232299A1

公开(公告)日：2004-11-25

申请号：US10317119

申请日：2002-12-12

Applicant: NSK LTD.

Inventor： Soichiro Kato ,  Takumi Nakagawa ,  Naoki Inokai ,  Kazuo Kanazawa

IPC: A47H001/10 ,  A47F005/00

CPC classification number: F16C29/0657 ,  F16C29/0664 ,  F16C33/3825 ,  F16C43/06 ,  Y10T29/49641

Abstract: A linear-motion device has: a slider provided onto a guide rail relatively movably; and a plurality of rolling elements for causing the slider to move relatively in a longitudinal direction of the guide rail; whereby the slider comprising a slider block having rolling-element rolling grooves that oppose to rolling- element rolling grooves formed on the guide rail, and end caps that close both-end openings of the rolling-element rolling paths formed between the rolling-element rolling grooves on the slider block and the rolling-element rolling grooves on the guide rail, and rolling-element return paths for returning the rolling elements, which have rolled in the rolling-element rolling paths, are formed on the slider block, wherein the rolling-element return paths comprises a groove portion formed on an outer surface of the slider block along the longitudinal direction of the guide rail, and a cover member for covering the groove portion.

Abstract translation: 线性运动装置具有：相对可移动地设置在导轨上的滑块; 以及多个滚动元件，用于使滑动件在导轨的纵向上相对移动; 由此，具有滑块的滑块具有与形成在导轨上的滚动元件滚动槽相对的滚动元件滚动槽，以及封闭滚动体滚动路径的两端开口的端盖， 在滑动块上形成滑动块上的槽和导轨上的滚动元件滚动槽以及滚动元件滚动路径中滚动的滚动元件返回滚动元件返回路径，其中滚动 - 元件返回路径包括沿着导轨的纵向方向形成在滑动块的外表面上的槽部分和用于覆盖槽部分的盖构件。