Pneumatic actuator
US11131329B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2020 |
| Grant date | Sep 28, 2021 |
| Priority date | — |
| Expiry date | Apr 29, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B15/10
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Provided is a pneumatic actuator having improved durability. A pneumatic actuator (10) comprises an actuator body (100) including: a cylindrical tube (110) configured to expand and contract by air pressure; and a cylindrical sleeve (120) formed by weaving cords (121) oriented in predetermined directions, wherein in a no-load and no-pressure state, an average angle (Θ1) of the cords (121) with respect to an axial direction (DAX) of the actuator is 20 degrees or more and less than 45 degrees, and in a state in which an average angle (Θ3) of the cords (121) with respect to the axial direction (DAX) of the actuator is 45 degrees with an air pressure of 5 MPa, a ratio (S2/S1) of a total area (S2) of gaps (122) of the cords (121) to an area (S1) of an outer surface of the actuator body (100) is 35% or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.