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1. (WO2017150248) ROLLING-ELEMENT SPLINE HAVING CLAMP FUNCTION

Pub. No.:    WO/2017/150248    International Application No.:    PCT/JP2017/006115
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Tue Feb 21 00:59:59 CET 2017
IPC: F16C 29/10
F16C 29/06
Applicants: THK CO., LTD.
THK株式会社
Inventors: MURATA Tomozumi
村田 智純
WATANABE Munenori
渡辺 宗徳
SHIGEDOMI Hideaki
重富 秀章
Title: ROLLING-ELEMENT SPLINE HAVING CLAMP FUNCTION
Abstract:
This rolling-element spline having a clamp function allows downsizing of a moving body that moves along a spline shaft, while a spline nut and a clamper nut are firmly integrated with each other. In the rolling-element spline, a moving body (3) that moves along a shaft member (2) is formed by connecting a spline nut (4) and a clamper nut (5) to each other. The spline nut (4) has, at a position that does not overlap a lock region (2B) for the shaft member (2), an endless circulation path (45) for a guide rolling element (22). Meanwhile, a retainer (52) of the clamper nut (5) has an extended fixing part (61) that overlaps the lock region (2B) for the shaft member (2) and that protrudes from one axial end of the clamper nut (5). The extended fixing part (61) is inserted between the spline nut (4) and the shaft member (2), and is fixed to the spline nut (4).