| 摘要 |
PROBLEM TO BE SOLVED: To accurately and easily measure an upper and lower end point switch gap of an elevator by slidably holding a scale member having a slider at the tip on a holder, restraining sliding of the scale member by a restraining means, and removably fixing the holder in a measuring position. SOLUTION: Previously a scale member 13 is drawn out to the tip side, and removably fixed to the surface of a switch box by the attracting force of a magnet 8 incorporated in the base 7 of a frame 9 while the direction of a roller 12 is opposite to the advancing direction of a driving cam with attention. Secondly, by the normal automatic operation, a car of an elevator is moved to rise, and the roller 12 is relatively made run on the back of the driving cam of the car, so that the scale member 13 is pushed back and slid to the inside of the frame 9 by pressure of the driving cam where the roller runs on. In such pushed-back and stopped state, the value of a scale 14 indicated by a fixed needle 10 is a gap dimension.
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