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Patent Searching and Data


Title:
LINEAR MOTION GUIDING DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/107900
Kind Code:
A1
Abstract:
Provided is a linear motion guiding device such that a proper length and depth suitable for the use conditions of a tapered portion provided on the end of a guiding rail are defined and such that a decrease in the durability of connecting portions can be reliably suppressed. The linear guidance device (1) is configured so that a guiding rail (10) end becomes gradually smaller in the longitudinal direction so as to form a tapered portion (10B). The tapered portion (10B) length (L) is no less than 0.5 times and no more than 1.5 times the diameter (r) of a rolling body (30). The tapered portion (10B) depth (t), a connection level difference (A) in the width direction between one guidance rail (10) and another guidance rail (10), the amount of elastic deformation of the rolling body (B), and the contact angle (α) of the rolling body (30) with respect to a raceway face (11) satisfy "t ≥ A+(B/cosα)."

More Like This:
JPS63180437LINEAR GUIDE DEVICE
Inventors:
KANO, Kenji (1 Ohnuma 1-chome, Hanyu-sh, Saitama 06, 〒3488506, JP)
Application Number:
JP2015/000165
Publication Date:
July 23, 2015
Filing Date:
January 15, 2015
Export Citation:
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Assignee:
NSK LTD. (6-3 Ohsaki 1-chome, Shinagawa-ku Tokyo, 60, 〒1418560, JP)
International Classes:
F16C29/06
Foreign References:
JPS6256660A1987-03-12
JP2010261483A2010-11-18
JP2002005162A2002-01-09
JPS6326417A1988-02-04
JPH0532610A1993-02-09
JP4259857B22009-04-30
Other References:
See also references of EP 3096029A4
Attorney, Agent or Firm:
MORI, Tetsuya et al. (NICHIEI Patent and Trademark Attorneys, Shiroyama Trust Tower 32F 3-1, Toranomon 4-chome, Minato-k, Tokyo 32, 〒1056032, JP)
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