| 摘要 |
PURPOSE:To reduce the number of parts, simplify maintenance, realize high response, and obtain a device with a function for adjusting wire clamp strength by constituting a movable side arm with a clamp movable part having elasticity and a piezoelectric element for deflecting the clamp movable part. CONSTITUTION:A pair of fixed-side arm 3 and a movable side arm for clamping a wire 4 are provided and the movable side arm consists of a clamp movable part 2 with elasticity and a piezoelectric element 1 deflecting the clamp movable part 2. For example, the piezoelectric element 1 and the clamp movable part 2 supported by the plate spring-shaped support 21 constitute the movable side arm and holding surfaces 2a and 3a at the tip of the movable side arm and the fixed side arm 3 hold the wire 4. Then, voltage is applied to the piezoelectric element 1 and the clamp movable part 2 is relatively moved to the fixed- side arm 3 for achieving wire-clamp operation. At the same time, by controlling voltage applied to the piezoelectric element 1, clamp strength of the wire 4 is adjusted. |
