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US 5,884,549 AGranted
Linear actuator
AssigneeSMC Corporation
InventorsMasayuki Hosono, Hiroshi Miyachi, Yoshiteru Ueno, Toshio Sato
Life of this patent
Estimating the term…
Abstract
A linear actuator comprising a guide section formed along a longitudinal direction to protrude on a bottom surface of a slide table, a pair of guide blocks formed mutually opposingly and seperated from each other by a predetermined spacing distance on an upper surface of the main cylinder body, attachment holes for attaching the main cylinder body to another member in any direction of attachment from a side of the slide table or from a side of the main cylinder body, and an adjuster bolt for adjusting an amount of displacement of the slide table.
Claims20
A linear actuator comprising:
- a cylinder mechanism including a main cylinder body defined with a through hole penetrating through said main cylinder body in its axial direction, for reciprocating a slide table in accordance with a displacement action of a piston arranged slidably along a cylinder chamber defined in said through hole;
- a guide mechanism for guiding said slide table along said axial direction of said main cylinder body, including a guide section formed along said axial direction to protrude from a bottom surface of said slide table or from an upper surface of said main cylinder body, and a pair of guide blocks formed mutually opposingly and separated from each other by a predetermined spacing distance on said upper surface of said main cylinder body or on said bottom surface of said slide table;
- an attachment member for selectively attaching said main cylinder body to another member in any direction of attachment from a side of said slide table or from a side of said main cylinder body;
- and
- a displacement amount-adjusting member for adjusting an amount of displacement of said slide table, provided in a cutout defined in one of said slide table and said main cylinder body, thereby providing a space between an underside of said slide table and an upper surface of said main cylinder body, said displacement amount-adjusting member further comprising an adjuster bolt which is connected at a substantially central position on said slide table and which is displaceable integrally with said slide table along said axial direction and through said cutout.
2 more elements
A linear actuator comprising:
- a main cylinder body including a cylinder chamber formed therein;
- a slide table reciprocatable along an axial direction of said main cylinder body;
- a cylinder mechanism for reciprocating said slide table in accordance with a displacement action of a piston arranged slidably along said cylinder chamber;
- a guide mechanism for guiding said slide table along said axial direction of said main cylinder body, said guide mechanism being attached to said main cylinder body and having a flat guide block formed with a passage for circulating a plurality of rolling elements in accordance with a rolling action;
- and
- a holding member for holding said guide block on said main cylinder body, said holding member being interposed between said main cylinder body and said guide block, wherein said holding member comprises a pair of bolt members threadedly attaching said guide block to said main cylinder body, and a pair of pin members inserted and fitted into pin-inserting holes formed in said main cylinder body and said guide block respectively, said pin members being laterally offset from an axial line on which said bolt members are positioned.
3 more elements
A linear actuator comprising:
- a main cylinder body including a cylinder chamber communicating with fluid inlet/outlet ports, and grooves formed on side surfaces to extend along an axial direction;
- a slide table reciprocatable along said axial direction of said main cylinder body;
- a cylinder mechanism for reciprocating said slide table in accordance with a displacement action of a piston arranged slidably along said cylinder chamber;
- and
- a block member formed with an elongated groove for installing a sensor at a predetermined position and provided with a locking section to be inserted and fitted along one of said grooves and held by one of said grooves, said block member including a fixing member for fixing said block member at a predetermined position on said side surface of said main cylinder body;
- wherein said fixing member includes attachment members to be inserted into holes formed to penetrate through said block member, and passages for communicating with said fluid inlet/outlet ports are formed through said attachment members.
3 more elements
A linear actuator comprising:
- a main cylinder body including a cylinder chamber communicating with fluid inlet/outlet ports, and grooves formed on side surfaces to extend along an axial direction;
- a slide table reciprocatable along said axial direction of said main cylinder body;
- a cylinder mechanism for reciprocating said slide table in accordance with a displacement action of a piston arranged slidably along said cylinder chamber;
- and
- a block member formed with an elongated groove for installing a sensor at a predetermined position and provided with a locking section to be inserted and fitted along one of said grooves and held by one of said grooves;
- wherein said grooves are formed on said pair of mutually opposing side surfaces of said main cylinder body, said block member is fixed to said groove on one of said side surfaces of said main cylinder body by means of a fixing member, a closing plate for closing said fluid inlet/outlet ports is fixed to said groove on the other of said side surfaces, and said block member and said closing plate are interchangeable to one another.
3 more elements
Dependencies are inferred from the claim text.