| 摘要 |
PCT No. PCT/FR96/01461 Sec. 371 Date Apr. 20, 1998 Sec. 102(e) Date Apr. 20, 1998 PCT Filed Sep. 19, 1996 PCT Pub. No. WO97/11281 PCT Pub. Date Mar. 27, 1997A safety snap hook comprising a so-called "hairpin" pawl including a rod of elastically deformable material, bent to form an open loop. Bent-over ends of the rod, about which the pawl pivots with respect to the body of the snap hook, are not coaxial. The snap hook being characterized in that the pawl is shaped in such a way that its bent-over ends are normally kept in spaced-apart position in which they are situated some distance from one another preventing pivoting with respect to the body. The pawl may be deformed in such a way as to bring the bent-over ends into a position in which they are closer together, in order to make pivoting possible. The body of the snap hook comprises an aperture in which one of the bent-over ends is engaged and can slide, while the other bent-over end is mounted so that it can pivot on the body about a fixed axis. The aperture is shaped to allow the bent-over end engaged in it to slide between a position in which the two bent-over ends of the pawl are spaced apart and a position in which the ends are closer together. |
