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Title:
PNEUMATIC ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2021/132569
Kind Code:
A1
Abstract:
A first piston (114) of a first cylinder (110) and a second piston (134) of a second cylinder (130) are connected so as to achieve the same amount of displacement. One pressure-receiving area of the first piston (114) is the smallest, and the pressure-receiving area of the second piston (134) which is on the same side is the third-smallest. When the two air chambers of the first cylinder (110) and the two air chambers of the second cylinder are referred to respectively as the first air chamber, second air chamber, third air chamber, and fourth air chamber in order from the chamber having the smallest pressure-receiving area to the chamber having the largest pressure-receiving area, in an advancing stroke a control valve (150) connects an air pressure source (102) to the first air chamber, connects the second air chamber and the third air chamber, and opens the fourth air chamber to the atmosphere (104).

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Inventors:
KITAGWA ATO (JP)
Application Number:
PCT/JP2020/048748
Publication Date:
July 01, 2021
Filing Date:
December 25, 2020
Export Citation:
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Assignee:
KITAGWA ATO (JP)
International Classes:
F15B11/064; F15B3/00
Foreign References:
DE102014007439A12015-11-26
US6029450A2000-02-29
JPH08226401A1996-09-03
JP2013199869A2013-10-03
DE102006034645A12008-01-31
Attorney, Agent or Firm:
MORISHITA Sakaki (JP)
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