| 摘要 |
<p>The linear actuator (1) includes a tube (2) provided with a slit (3) which penetrates the wall of the tube and extends parallel to the longitudinal axis of the tube. In the tube, an internal moving body (20) is disposed. The internal moving body (20) moves in the tube along the direction of the longitudinal axis of the tube. An external moving body (26) is disposed outside of the tube and coupled to the internal moving body by a driving member (22) through the slit (3) in the tube so that the external moving body (26) moves integrally with the internal moving body (20) along the slit. Band guides (41a,b) for guiding an outer seal band (31) and an inner seal band (30) are attached to the external moving body (26). Slider members are disposed between the external moving body and the outer wall surface of the tube to avoid direct contact between the external moving body and the tube. The band guide and the slider member are formed as an integral one-piece element. Therefore, when the band guide is attached to the external moving body (26), the slider member is simultaneously attached to the external moving body and firmly held in place. <IMAGE></p> |
