ROLLING ELEMENT RETAINER AND ENDLESS CIRCULATION TYPE LINEAR MOTION DEVICE USING SAME

WIPO Patent Application WO/2010/074155

A1

Provided are a rolling element retainer having high durability achieved by minimizing as much as possible bending stress acting on the outer surfaces of connecting sections, and an endless circulation type linear motion device using the rolling element retainer. A rolling element retainer is provided with: ball retaining sections (10) which serially retain balls (2) arranged at predetermined intervals and are adapted to hold each of the balls (2) so as to sandwich the ball from the front and rear in the direction in which the balls are arranged; wing sections (22) projecting from each of the ball retaining section (10) in the direction normal to the direction in which the balls are arranged; and flexible connecting sections (23) for connecting between the wing sections (22).  The rolling element retainer is configured so that, with the balls retained by the ball retaining sections (10), the direction of the arrangement of the balls (2) can be bent by deformation of the connecting sections (23).  The width (A1) of each of the wing section (22) in the direction in which the balls are arranged is set to be equal to or less than the width (A0) of each of the ball retaining sections (10) in the direction in which the balls are arranged.

SHIRAI TAKEKI (JP)
IIDA KATSUYA (JP)
HORIE TAKUYA (JP)

PCT/JP2009/071457

July 01, 2010

December 24, 2009

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THK CO LTD (JP)
SHIRAI TAKEKI (JP)
IIDA KATSUYA (JP)
HORIE TAKUYA (JP)

F16C29/06; F16C33/38; F16C33/50

JPH11247855A	1999-09-14
JPH09242759A	1997-09-16
JP2004092799A	2004-03-25
JPH10110728A	1998-04-28
JP2006226308A	2006-08-31

SERA Kazunobu et al. (JP)
Kazunobu Sera (JP)

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