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Patent Searching and Data


Title:
PNEUMATIC CYLINDER WITH CUSHION FUNCTION
Document Type and Number:
Japanese Patent JP2003254303
Kind Code:
A
Abstract:

To provide a pneumatic cylinder with the cushion function capable of preventing disturbance of the motion of a piston by inhibiting a sudden variation of the back pressure in the speed reduction process even if the piston is operated with a very large kinetic energy, and capable of achieving the optimal speed reduction property of the piston according to the volume of the kinetic energy of the piston.

In the cylinder, a plurality of vent holes 33 and 34 connected to an exhaust restriction means are opened in the order from the position of a port hole 16 of an air supply/exhaust port 12 in a cylinder body 2 toward the stroke end 6a of the piston 10. Accordingly, the speed reduction process of the piston 10 by the cushion function is divided into multiple steps, and by connecting flow control valves 23 and 24 to at least one of the plurality of vent holes 33 and 34 as the exhaust restriction means, the exhaust flow rate in the speed reduction process of the piston 10 can be adjusted.


Inventors:
OKUMA MASAHIRO
NAGASAWA YUKIO
Application Number:
JP2002000056142
Publication Date:
September 10, 2003
Filing Date:
March 01, 2002
Export Citation:
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Assignee:
SMC CORP
International Classes:
F15B15/22; (IPC1-7): F15B15/22
Attorney, Agent or Firm:
林 宏 (外2名)