| 摘要 |
PROBLEM TO BE SOLVED: To provide a shaft coupling for detecting the position of a lift in a no-load condition or near to automatically stop it. SOLUTION: In the shaft coupling A for connecting a driving machine C and the lift D to each other, the rotating power is transmitted between a screw shaft 2 and a female screw body 3, and a spring 4 is arranged to resist the axial directional force generated by the screw function. A projecting body 17 and a position detector 21 are arranged to work in the non-load condition or near arranged in the peripheral part of a female screw connector 6 to be moved in parallel with the shaft center. COPYRIGHT: (C)2004,JPO&NCIPI
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