Patent ID: 11958326
Assignee: THK CO., LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 0:
1. An actuator comprising:
a casing;
a hollow shaft rotatably supported by the casing via a bearing, the hollow shaft including a bottom portion;
a screw shaft coupled to the bottom portion of the hollow shaft, the screw shaft sharing a common center line with the hollow shaft; and
a nut threadedly connected to the screw shaft, wherein
the screw shaft is coupled to the hollow shaft so as to be incapable of rotating relative to the hollow shaft and incapable of moving in an axial direction relative to the hollow shaft, and
the nut is capable of moving in an axial direction of the screw shaft to enter between the hollow shaft and the screw shaft.