| 摘要 |
PROBLEM TO BE SOLVED: To provide an automatic balance adjustment structure of a medical balancing stand capable of performing independent adjustment for each horizontal rotation shaft without using an encoder and a computer.SOLUTION: In a normal time, a movable member 15 allow a clearance C to be zero so as to cause the tracking rotation of a lever 12 and a rotation plate 11 interlockingly with a horizontal arm 2. The clearance C is secured by the movable member 15 in balance adjustment. Switches S1, S2 are actuated by an engagement part 13 to be moved inside the clearance C so as to detect an imbalance state. Signals are output from the switches S1, S2 to adjustment means, to thereby correct the imbalance. The switches S1, S2 are used in a structure. Consequently, a whole device is miniaturized and balance adjustment is facilitated. |
