| 摘要 |
A snap-hook is provided which consists of an open ring and of a tilting finger whose one end pivots upon the corresponding end of the body of the ring and is drawn back by means of a spring. The axis around which the said finger tilts is inclined with respect to the perpendicular to the plane of the ring, so that, when the snap-hook opens, the finger tilts out of this plane and may to pass beyond the opposite main longitudinal back arm of the ring, without striking against it. |
