| 摘要 |
<p>A brake mechanism is constituted to have: an electromotive actuator which suppresses a rotation of a disk (21) by moving a first pad (31) toward a second pad (32) to sandwich and press the disk between the first pad and the second pad; a pressing force setting section outputting a set signal to set a pressing force of the pad to the disk; a plurality of piezoelectric elements (4) provided at different places from each other in the first pad or the second pad, the plurality of piezoelectric elements detecting a stress of the pad; a signal processing part which processes electric signals obtained from the plurality of piezoelectric elements and generates a detection signal of a pressing force, the detection signal corresponding to a pressing force of the pad to the disk; and a computing part which obtains a deviation between the set signal and the detection signal, computes an operation signal of the electromotive actuator based on the deviation, and then outputs the operation signal.</p> |
