Patent ID: 11933328
Assignee: SMC CORPORATION
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A cylinder drive device comprising:
a manifold having a block shape and in which a plurality of holes are formed, fluid flowing through the holes and being used to drive a plurality of fluid pressure cylinders; and
a plurality of switching valves configured to be mounted to the manifold, each of the switching valves configured to alternately supply fluid to a first cylinder chamber and a second cylinder chamber of each of the plurality of fluid pressure cylinders, the first cylinder chamber and the second cylinder chamber being separated by a piston of each of the fluid pressure cylinders,
wherein
a first flow path and a second flow path are provided between at least one of the plurality of fluid pressure cylinders and one of the switching valves that supplies fluid to the at least one of the fluid pressure cylinders, the first flow path is configured to allow the fluid to flow to and from the first cylinder chamber of the at least one of the fluid pressure cylinders and the one of the switching valves, the second flow path is configured to allow fluid to flow from the first cylinder chamber of the at least one of the fluid pressure cylinders to the second cylinder under chamber via the one of the switching valves,
the first flow path is provided with a first check valve preventing fluid from flowing in a direction from the first cylinder chamber of the at least one fluid pressure cylinder to the one switching valve, and a throttle valve in parallel with the first check valve,
the second flow path is provided with a second check valve preventing fluid from flowing in a direction from the one switching valve to the first cylinder chamber of the at least one fluid pressure cylinder,
the cylinder drive device further comprises a flow path unit interposed between the manifold and the one switching valve and including a plurality of flow paths, the plurality of flow paths allowing communication between the manifold and the first check valve, between the one switching valve and the second check valve and between the manifold and the throttle valve, the flow path unit communicating with the plurality of holes of the manifold in a manner that fluid flows into the one switching valve.