Title:
LINEAR-MOTION ELEMENT OF LINEAR-MOTION PLANAR GUIDE DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/004719
Kind Code:
A1
Abstract:
Provided is a linear-motion element of a linear-motion planar guide device including: a raceway surface (3) facing a rail-side raceway surface and constituting a load rolling path (5) of rollers; a linear-motion element body (1) formed with a return path (7) for circulating rollers (13) that have rolled on the load rolling path; and a pair of end caps (9) formed with a direction change path (11) for communicating the load rolling path and the return path, and disposed at both front and rear ends of the linear-motion element body. Each roller (13) has, on at least one of both end surfaces, a chamfer (17) for retaining the roller, and satisfies 1 ≤ L/Da ≤ 1.5 where Da is the diameter of the roller, and L is the length of the roller.
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Inventors:
KANO KENJI (JP)
YOSHIDA TOSHIO (JP)
YOSHIDA TOSHIO (JP)
Application Number:
PCT/JP2023/022452
Publication Date:
January 04, 2024
Filing Date:
June 16, 2023
Export Citation:
Assignee:
NSK LTD (JP)
International Classes:
F16C29/06; F16C33/34; F16C33/58
Domestic Patent References:
| WO2009011282A1 | 2009-01-22 |
Foreign References:
| JP2005016590A | 2005-01-20 | |||
| JP2005036831A | 2005-02-10 | |||
| JP2007003011A | 2007-01-11 | |||
| JPH0272814U | 1990-06-04 | |||
| JP2004138193A | 2004-05-13 | |||
| JP2010185517A | 2010-08-26 |
Attorney, Agent or Firm:
EIKOH, P.C. (JP)
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