| 摘要 |
A seat belt buckle for use with a tongue 16, associated with a seat belt, includes a frame 10, in which is mounted an ejector 20, operable by an ejector spring 22. Insertion of the tongue pushes a retainer 30 down a track 26, against the action of a retainer spring 32. The track is inclined at an angle alpha to the path 15 of the tongue and extends outwardly away from the path in the direction of insertion of the tongue. When the tongue has been inserted an adequate amount, the retainer 30, e.g. a ball returns up the ramp under the influence of the spring 32 and engages in an aperture 18 in the tongue to retain the tongue in the locked condition. Operation of a release mechanism 42 disengages the retainer from the aperture thereby to release the tongue. |
