Title:
ACTUATOR CURVED INNER LENGTH MEASUREMENT DEVICE AND ACTUATOR CURVED INNER LENGTH MEASUREMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2024/048299
Kind Code:
A1
Abstract:
This actuator curved inner length measurement device is for a fluid pressure actuator which includes a cylindrical actuator body part 22 that shortens and curves on one side of the cylinder circumference due to an increase in the internal pressure within the cylinder. In the actuator, the base end of a cylinder shaft is fixed to a base body and the leading end moves relative to the base body. The actuator curved inner length measurement device comprises: a wire member, one end of which is attached to the base body and an intermediate section of which is disposed on the curved side of the actuator body part so as to follow the bending deformation; a wire-holding member that holds the wire member in a position along the actuator body part; and a measurement unit that applies tension to the wire member and measures an amount of change in the length of the wire member.
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Inventors:
OONO SHINGO (JP)
MIYAZAKI TETSURO (JP)
KAWASHIMA KENJI (JP)
KUTSUNA KAITO (JP)
MIYAZAKI TETSURO (JP)
KAWASHIMA KENJI (JP)
KUTSUNA KAITO (JP)
Application Number:
PCT/JP2023/029706
Publication Date:
March 07, 2024
Filing Date:
August 17, 2023
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
UNIV TOKYO (JP)
UNIV TOKYO (JP)
International Classes:
G01B5/02; F15B15/10
Foreign References:
| JP2021088999A | 2021-06-10 | |||
| JPH10239009A | 1998-09-11 | |||
| JPH03117712U | 1991-12-05 |
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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