Title:
LINEAR MOTION GUIDE DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/210637
Kind Code:
A1
Abstract:
A linear motion guide device according to the present invention includes: a guide rail; a slider to be guided in a first axis direction by the guide rail, the slider including a slider body, an end cap connected to an end of the slider body in the first axis direction, and a return guide disposed between the slider body and the end cap so as to face the end cap; and rolling elements capable of rolling in a circulation passage including a rolling passage defined between the guide rail and the slider body, a return passage provided inside the slider body and adjoining the rolling passage in a second axis direction in a predetermined plane perpendicular to the first axis direction, and a direction-changing passage defined between the end cap and the return guide and connecting the rolling passage and the return passage. The circulation passage includes a first circulation passage, a second circulation passage, and a third circulation passage arranged in a third axis direction, which is perpendicular to the second axis direction in the predetermined plane. The return guide includes multiple oil supply ports through which lubricant is supplied to each of the first circulation passage, the second circulation passage, and the third circulation passage from the third axis direction.
Inventors:
MIZUMURA YOSHINORI (JP)
TSUTSUI AKIRA (JP)
TSUTSUI AKIRA (JP)
Application Number:
PCT/JP2022/015264
Publication Date:
October 06, 2022
Filing Date:
March 29, 2022
Export Citation:
Assignee:
NSK LTD (JP)
International Classes:
F16C29/06
Foreign References:
| JP2008138840A | 2008-06-19 | |||
| JP2008291938A | 2008-12-04 | |||
| JPH07507856A | 1995-08-31 | |||
| JP2004353698A | 2004-12-16 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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