| 摘要 |
PURPOSE:To reduce shocks at the time a spring-up mechanism is in operation. by furnishing a projection in a place other than the fulcrum of an opening/ closing part, and providing a resilient piece to be deformed by this projection, when the opening/closing part is shut, in the part of installation CONSTITUTION:To shut an opening/closing part 5, a detention part 1 is pushed in the W1 direction centering on its fulcrum 2 against a spring 3 installed in this part 1. This causes disengagement of the hitch part 4 of the detention part 1 from the place of installation 9, and at the same time, the opening/closing part 5 is sprung up in the W2 direction by the resilience of a resilient piece 7 furnished in this part 9 and opened while rotating round a fulcrum 6. Accordingly the push-up force of the resilient piece 7 can be managed small to allow reducing the weight of a member such as spring 3. |
