| 摘要 |
<p>PROBLEM TO BE SOLVED: To cancel the problem of decelerating operating speed more than needed in the case because a conventional bed for letting a floor part rise/fall or vertically move through a linear actuator is designed so as to comparatively smoothly perform these operations at fixed operating speed. SOLUTION: Concerning the floor movable bed using a linear actuator, the operating speed of this linear actuator can be varied and switched. For example, the linear actuator is constituted for decelerating the turning power of a motor 3 through a decelerator, rotationally driving a screw shaft and linearly moving a female screw side screwed with this screw shaft, the operating speed can be varied by changing the turning speed of the motor, and a changeover switch 9a for switching this operating speed can be provided at a control panel 5 or a remote controller 8 constituted on the bed.</p> |
