Patent ID: 7191695
Filing Date: 2007-03-20
Classification: F15B

Abstract:
1. 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.