| 主权项 |
1. A telescopic actuator comprising:
a rod; a support member that supports the rod so that the rod can move forward and backward; and a stroke sensor that is disposed on one end side of the rod to measure a stroke amount of the rod, wherein the stroke sensor comprises: a bar-like section to be detected; and a detecting section into which the section to be detected can enter and which detects a length of a portion of the section to be detected that has entered into the detecting section, the rod has a bottomed cylindrical portion that is open toward the one end side, the section to be detected is fixed to a bottom surface of the bottomed cylindrical portion and is at least partly housed in the bottomed cylindrical portion, when the rod is maximally extended, the support member supports an outer peripheral surface of the bottomed cylindrical portion, and when the rod is maximally contracted, the detecting section is at least partly housed in the bottomed cylindrical portion. |
