Title:
LINEAR MOTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/039117
Kind Code:
A1
Abstract:
A linear motion device (10) comprises: a bearing (14) mounted to the outer periphery of a ball screw (12); a nut holder (30) through which the ball screw (12) passes; and a bearing pressing member (22) which is fixed to a motor housing (16) with the ball screw (12) inserted in a through hole (36) and which restricts the movement of the bearing (14) in the motor housing (16) in the axial direction. The bearing pressing member (22) has a cutout portion (40) extending from the inner peripheral surface of the through hole (36) over to the outer peripheral surface of the bearing pressing member (22) in the radial direction.
Inventors:
YAMASAKI MIZUHO (JP)
KOUDA HISANORI (JP)
KOUDA HISANORI (JP)
Application Number:
PCT/JP2021/029854
Publication Date:
February 24, 2022
Filing Date:
August 16, 2021
Export Citation:
Assignee:
FANUC CORP (JP)
International Classes:
F16C35/067; F16H25/20; F16H25/22
Foreign References:
| JPH1130234A | 1999-02-02 | |||
| JP2002174317A | 2002-06-21 | |||
| JPH11108142A | 1999-04-20 | |||
| JPH0525024U | 1993-04-02 | |||
| JP2010007762A | 2010-01-14 | |||
| JP2019002461A | 2019-01-10 | |||
| JP2015014317A | 2015-01-22 | |||
| JP2017067197A | 2017-04-06 |
Attorney, Agent or Firm:
CHIBA Yoshihiro et al. (JP)
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