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US 2019/0170167 A1Published application
Hydraulic fluid device
AssigneeSMC Corporation
InventorTsukasa ODAKA
Life of this patent
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Abstract
A hydraulic fluid cylinder is equipped with a cylinder tube, a piston unit, and a piston rod. The piston unit has a piston body provided with a gasket-mounting groove. A gasket member is mounted in the gasket mounting groove. The gasket member has a gasket body provided with a magnet-mounting groove exhibiting groove depth in the axial direction of the piston unit, and also has a magnet mounted in the magnet-mounting groove.
Claims13
A fluid pressure device comprising:
- a body having a slide hole inside the body;
- a piston unit movable in an axial direction inside the slide hole;
- and
- a piston rod protruding from the piston unit in the axial direction;
- wherein the piston unit includes a packing member and a piston body including a packing mounting groove in which the packing member is mounted;
- and
- wherein the packing member includes:
- a packing body comprising an elastic member and circumferentially extending over an entire circumference of the piston body in a circumferential direction of the piston body, the packing body being provided with a magnet mounting groove having a depth in the axial direction of the piston unit;
- and
- a magnet mounted in the magnet mounting groove.
7 more elements
Dependencies are inferred from the claim text.