| 摘要 |
PROBLEM TO BE SOLVED: To provide a small and lightweight brake device capable of making a reliable braking force adjustment.SOLUTION: A brake pad 18, a dielectric elastomer actuator 1, and a pressure sensor 19 are arranged inside the brake device 10. The pressure sensor 19 is embedded and fixed in a bottom part inside a case 11, in a position of a fixed part 7, and its surface coincides with the surface of the bottom part. The dielectric elastomer actuator 1 is arranged in such a direction that the electrode surfaces of flexible electrodes 3, 4 arranged on both faces of the actuator are parallel with the bottom part of the case 11. The dielectric elastomer actuator 1 is fixed to the case 11 through the pressure sensor 19 at the fixed part 7 abutting on the pressure sensor 19 fixed to the case 11. The brake pad 18 side is provided with a fixing part 20 for fixing the brake pad 18 and the dielectric elastomer actuator 1. Normal reaction is monitored by the pressure sensor 19 to control voltage applied to the flexible electrodes 3, 4 to thereby apply an accurate braking force to a belt-like moving body 14. |
