Title:
ELECTRIC ACTUATOR AND ELECTRIC PARKING BRAKE DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/084754
Kind Code:
A1
Abstract:
Provided is an electric actuator in which the number of movable parts in a motion conversion mechanism is small, and which has quietness of a small striking sound when an electrical driving part is operated. This electric actuator comprises: an electrical driving source which generates a rotary motion as a driving force; and a motion conversion mechanism which converts the rotary motion into a linear motion. The motion conversion mechanism has: a first member which is prevented from a rotary motion and a linear motion; and a second member which engages with the first member and rotates relative to the first member, thereby generating a linear motion, wherein the second member is rotationally driven by the driving force of the electrical driving source.
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Inventors:
USUI KOJI (JP)
Application Number:
PCT/JP2023/025805
Publication Date:
April 25, 2024
Filing Date:
July 13, 2023
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
F16H25/20; B60T13/74; F16H25/24; H02K7/06
Foreign References:
| JP2017095009A | 2017-06-01 | |||
| JP2020094640A | 2020-06-18 | |||
| JP2001132813A | 2001-05-18 | |||
| JP2020085097A | 2020-06-04 | |||
| JP2010172075A | 2010-08-05 | |||
| CN213008073U | 2021-04-20 | |||
| JP2019006223A | 2019-01-17 |
Attorney, Agent or Firm:
YAMAMOTO, Osamu et al. (JP)
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