Fluid pressure cylinder
AssigneeSMC Corporation
InventorsYouji Takakuwa, Hiroyuki Asahara, Kengo Monden, Aki Iwamoto, Naoki Shinjo, Kazutaka Someya, Akihiro Kazama
Life of this patent
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Abstract
A cylinder main body of a fluid pressure cylinder includes a switch valve, a check valve, and a flow path communicating a high pressure air supply source with a head side cylinder chamber and communicating an exhaust port with a rod side cylinder chamber when the switch valve is at a second position. Another flow path communicates the head side cylinder chamber with the rod side cylinder chamber and the exhaust port when the switch valve is at the first position.
Claims15
A double acting fluid pressure cylinder comprising:
- a cylinder main body in which a piston reciprocates;
- and
- a switch valve which includes a discharge port and which is fixed to the cylinder main body;
- wherein the cylinder main body includes:
- a supply check valve arranged inside a wall part which forms the cylinder main body;
- a first flow path connecting one cylinder chamber and the switch valve;
- a second flow path connecting an other cylinder chamber and the switch valve;
- and
- a third flow path being provided with the supply check valve and being derived from the first flow path,
- wherein
- the one cylinder chamber is connected with a fluid supply source via the first flow path and the switch valve, and the other cylinder chamber is connected with at least the discharge port via the second flow path when the switch valve is at a first position, and
- the one cylinder chamber is connected with the other cylinder chamber via the third flow path, the supply check valve, the switch valve and the second flow path, and the one cylinder chamber is also connected with at least the discharge port via the first flow path and the switch valve, when the switch valve is at a second position.
A double acting fluid pressure cylinder comprising:
- a cylinder main body in which a piston reciprocates;
- and
- a switch valve which includes a discharge port;
- wherein the cylinder main body includes:
- a supply check valve,
- a first flow path connecting one cylinder chamber and the switch valve;
- a second flow path connecting an other cylinder chamber and the switch valve;
- and
- a third flow path being provided with the supply check valve and being derived from the first flow path,
- wherein
- the one cylinder chamber is connected with a fluid supply source via the first flow path and the switch valve, and the other cylinder chamber is connected with at least the discharge port via the second flow path when the switch valve is at a first position,
- the one cylinder chamber is connected with the other cylinder chamber via the third flow path, the supply check valve, the switch valve and the second flow path, and the one cylinder chamber is also connected with at least the discharge port via the first flow path and the switch valve, when the switch valve is at a second position, and
- a first tank is arranged between the other cylinder chamber and the switch valve.
Dependencies are inferred from the claim text.