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US 7,191,695 B2Granted
Linear actuator
AssigneeSMC Corporation
InventorsToshio Sato, Akira Tadano
Life of this patent
Estimating the term…
Abstract
A displacement amount-adjusting mechanism for adjusting the displacement amount of a slide table includes a stopper which faces a cutout formed at a bottom surface of the slide table and which is fixed to an upper surface of a main cylinder body, a first adjuster bolt which is provided movably back and forth on the slide table and which is screwed into a screw hole communicating with the cutout, an adjuster plate which is fixed to an end surface of the main cylinder body, and a second adjuster bolt which is screwed into a hole of the adjuster plate.
Claims9
A linear actuator comprising:
- a main cylinder body which is formed with cylinder chambers communicating with fluid inlet/outlet ports;
- a slider which reciprocates in an axial direction of said main cylinder body;
- a cylinder mechanism which allows said slider to reciprocate under a displacement action of a piston arranged slidably along said cylinder chambers;
- a guide mechanism which guides said slider in said axial direction of said main cylinder body;
- and
- a displacement amount-adjusting mechanism which adjusts a displacement amount of said slider, wherein
- said slider is integrally formed by metal injection molding or casting,
- said displacement amount-adjusting mechanism includes a stopper which faces a cutout formed between said main cylinder body and said slider and which is fixed to one of said main cylinder body and said slider, and a first adjuster bolt which is provided movably back and forth on the other of said main cylinder body and said slider, and
- said displacement amount-adjusting mechanism further includes an attachment member which is fixed to an end surface of said main cylinder body in said axial direction, and a second adjuster bolt which is installed movably back and forth to said attachment member, and said second adjuster bolt is capable of making abutment against an end surface of said slider.
6 more elements
A linear actuator comprising:
- a main cylinder body which is formed with cylinder chambers communicating with fluid inlet/outlet ports;
- a slider which reciprocates in an axial direction of said main cylinder body;
- a cylinder mechanism which allows said slider to reciprocate under a displacement action of a piston arranged slidably along said cylinder chambers;
- and
- a guide mechanism which guides said slider in said axial direction of said main cylinder body, wherein
- a piston rod, which is exposed outside of said main cylinder body, is connected to said piston, a first bush and a second bush, which have floating functions, are provided at a connecting portion between said piston rod and said slider, and seal rings are respectively installed to contact surfaces of said first bush and said second bush which make contact with said slider.
3 more elements
Dependencies are inferred from the claim text.