Title:
【発明の名称】空気圧作動装置の動きを制御するための保護装置
Document Type and Number:
Japanese Patent JP2002524696
Kind Code:
A
Abstract:
A protection device for controlling the motion of a pneumatic actuator, having at least one elongated cylinder provided with a piston, dividing the cylinder into a first chamber and a second chamber, an actuating pressure supply line connectable to at least one of the first and second chambers, a control unit for controlling the motion of the piston relatively to the cylinder, and a motion sensor adapted to sense a piston feature related to the piston motion and co-operating with the control unit. According to the invention, the control unit limits the motion of the piston as soon as signal from the sensor indicates that an excessive value of the piston motion has been established.
Inventors:
Liao, Bojao
Darberg, Urban
Darberg, Urban
Application Number:
JP2000569130A
Publication Date:
August 06, 2002
Filing Date:
September 03, 1999
Export Citation:
Assignee:
De Laval Holding Arbe
International Classes:
B25J9/14; A01J5/017; A01J7/00; F15B11/024; F15B11/06; F15B15/28; F15B20/00; (IPC1-7): F15B11/06; B25J9/14
Attorney, Agent or Firm:
Mitsuo Adachi (2 outside)