| 摘要 |
998,511 Stud and socket fastenings. DEUTSCH FASTENER CORPORATION. June 4, 1962 [Sept. 18, 1961], No. 21512/62. Heading E2B. A push fastener for detachably securing one member 1 to another member 2 comprises a retainer 3 adapted to be associated with the member 1 and a plunger movable relative to a support member 5 adapted to be associated with the other member 2 the retainer having leaf spring elements 16, 17 engageable with a first shoulder 15 of the plunger for retaining the plunger against movement in a first axial direction the plunger including a second shoulder 20 engageable with a releasing member 21 slidable on the plunger the releasing member being movable by the second shoulder in response to movement of the plunger against the action of a spring 18 to a position of frictional engagement with the leaf spring elements, the leaf spring elements having abutment means 30, 31, limiting the amount of movement of the releasing member for preventing the releasing member from moving beyond the free end portions of the leaf spring elements in a direction opposite to said first axial direction. The fastener is both engaged and released by pushing the plunger; pushing the plunger when the fastener is released causes a disc 13 at one end of the plunger to spread the leaf spring elements apart until the disc 13 has passed beyond their free ends when the spring elements move together and by engaging the shoulder 15 prevent separation of the members 1, 2. In this condition of the fastener the releasing member is held away from the disc 13 by a spring 24. To release the fastener the plunger is pushed and this moves the releasing member between the two spring elements to separate them; the pressure of the spring elements retains the releasing member between them and when the plunger is released the spring 18 withdraws the plunger and moves the disc 13 compressing the spring 24, the two members 1 and 2 can then be separated. As shown the abutment means 30, 31 are inturned lips on the ends of the spring elements but in a modification the spring elements have offset sections which provide abutment shoulders to prevent movement of the releasing member beyond the ends of the spring elements the shoulder on the disc 13 abutting the ends of the offset sections. In another modification each spring element has three tabs at its end instead of a lip. |
