| 摘要 |
A safety belt buckle has a slider (11) having first means and also second means each adapted to engage and retain a locking member (27) in a locking condition in which it engages a tongue (36) inserted in the buckle. The slider (11) is spring biassed to a position in which one means engage and retain the locking member (27) and is movable against the spring bias to a second position to permit the locking member (27) to move to release the tongue (35). The arrangement is such that if the buckle is subjected to a severe force which moves the slider (11) against the spring bias the slider (11) moves to a third position in which the said second means engage and retain the locking member (26) in the locking position. |
