| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve various problems caused by a fact that a load sensor is constituted separately from a bed and installed outside, although various means for detecting a load on a floor of a bed are proposed. <P>SOLUTION: In this actuator with a built-in load sensor, one end side of a screw shaft 1 is rotatably supported by a base 2, and a female screw member 3 is screwed with the screw shaft. An operation rod body 4 fixed to the female screw member is configured to move forward and backward in an axial direction of the screw shaft. The base includes a thrust bearing 6 coaxially with the screw shaft, and an operation tube body 8 supporting one end side of the screw shaft in the axial direction via the bearing. A detection tube body 9 is provided between the operation tube body and a supporting member 8 on the base side, and a distortion gauge 10 is mounted to an outer face of the detection tube body, so as to solve the above problems. <P>COPYRIGHT: (C)2009,JPO&INPIT |
