Smc Corporation

Smc Kabushiki Kaisha

Hiroshi Udagawa

Hiroshi Ogawa

Hiromi Shimoda

Takashi Nagao

A pair of air cylinders that cause a valve plate to perform an opening/closing operation each include a head-side air cushion mechanism and a rod-side air cushion mechanism. Each head-side air cushion mechanism includes a head-side communication path and a head-side restricting flow path that connect a head-side pressure chamber and a head-side main flow path in parallel, and a blocking mechanism that blocks the head-side communication path when a piston approaches a retreat stroke end, and each rod-side air cushion mechanism includes a rod-side communication path and a rod-side restricting flow path that connect a rod-side pressure chamber and a rod-side main flow path in parallel, and a blocking mechanism that blocks the rod-side communication path when the piston approaches an advance stroke end.

Low noise gate valve

Cylinder operated by fluid pressure

A rotation-preventing mechanism for regulating the free rotation of an outer piston in a boosting cylinder apparatus is composed of at least one engaged groove formed in the inner surface of a cylinder tube integrally with the cylinder hole and at least one engaging member that is mounted on the outer circumference of the outer piston and fitted in the engaged groove in such a way as to be moved along the engaged groove.

Growing community of inventors

Soka, Japan

Hiroshi Udagawa