Title:
ACTUATOR AND ROBOT
Document Type and Number:
WIPO Patent Application WO/2022/145288
Kind Code:
A1
Abstract:
This actuator (300) comprises: a ball screw shaft (301) that is rotated by rotational motion transmitted from an output shaft of a motor; a ball screw nut (388) provided on the ball screw shaft (301); a slide part (360) to which the ball screw nut (388) is attached and which moves linearly in conjunction with the rotational motion of the ball screw shaft (301); and a spiral spring mechanism (327) that biases the ball screw shaft (301) in a predetermined rotational direction. The rotational axis in which the spiral spring mechanism (327) outputs a biasing force is parallel to the ball screw shaft (301).
Inventors:
SUGIYAMA TAKASHI (JP)
KOYAMA SATOSHI (JP)
IWANASHI KENTO (JP)
KOYAMA SATOSHI (JP)
IWANASHI KENTO (JP)
Application Number:
PCT/JP2021/047314
Publication Date:
July 07, 2022
Filing Date:
December 21, 2021
Export Citation:
Assignee:
IAI CORP (JP)
International Classes:
B25J19/00; F16D55/28; F16D65/16; F16F1/10; F16H7/02; F16H25/22; F16H25/24; H02G11/00; H02K7/06
Foreign References:
| JP2007259574A | 2007-10-04 | |||
| JP2017101721A | 2017-06-08 |
Attorney, Agent or Firm:
KIMURA Mitsuru (JP)
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