| 摘要 |
PCT No. PCT/SE92/00274 Sec. 371 Date Apr. 28, 1994 Sec. 102(e) Date Apr. 28, 1994 PCT Filed Apr. 27, 1992 PCT Pub. No. WO92/19118 PCT Pub. Date Nov. 12, 1992.A yieldable safety connection including a male portion (20) insertable into a female portion (30) for separation therefrom when both portions are subjected to counter-directed traction forces exceeding a certain magnitude. The male portion (20) includes a fork-like device (40) including a first arm (21) and a second arm (22), while the female portion (30) includes a first material portion (31) and a second material portion (32) between which the fork-like device of the male portion is located when the male portion has been inserted in the female portion. Both arms of the male portion and both material portions of the female portion are provided with locking devices (23, 24; and 33, 34, respectively), which are provided with abutment surfaces (43, 44 and 73, 74 respectively) oriented at an oblique angle in relation to the major direction of the traction forces. When the traction forces are applied, reaction forces are produced at right angles to the major direction of the traction forces, whereupon the cooperating locking devices (23, 24 and 33, 34, respectively) are resiliently displaced form one another and the male portion is withdrawn from the female portion when the traction forces exceed certain magnitude.
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