Device in connection with locks for safety belts

A connector comprising a male tongue-shaped member, a female member having a pair of flat sidewalls, and means for releasably locking said male and female members to each other, said means comprising

• a pair of opposed transverse slots in each of said side walls, said slots in one side wall registering with said slots in the other side wall,
• a pair of pins each of which is guided by one of said slots in one side wall and the registering slot in the other side wall for transverse movement in said slots,
• a pair of notches provided in the edges of said tongue-shaped member, each of said notches having a width sufficient to accommodate one of said pins, the edge of each of the notches nearest to the tip of said tongue-shaped member extending at right angles to the longitudinal axis of said tongue-shaped member,
• a manually operable cam member for shifting said pins between an inner position in which said pins engage said notches and an outer position outside said notches, said cam member having a pair of opposed flat shanks each of which has a pair of camming slots engaging end portions of said pair of pins,
• spring means urging said cam member towards a position in which said pins occupy their inner positions, and
• said cam member being a lever pivotable about an axis extending at right angles to said parallel side walls between the inner ends of said opposed slots therein.