Patent ID: 6116663
Filing Date: 2000-09-12
Classification: A61G,E05B,Y10S,Y10T

Abstract:
A lock of the catch-type comprising:an engaging member comprising a locking pin;a receiving member having an inner and an outer end, the receiving member comprising:a female element in the form of a sleeve, said sleeve having a central axis and comprising an opening lying in a plane parallel to said central axis and on a periphery of said female element, said sleeve also comprising an elongated slot on a portion thereof, said elongated slot lying in a plane perpendicular to said central axis and having a predetermined length delimited by an upper and a lower end, at least one of said end comprising a recess extending in the direction of said outer end of said receiving member;a male element having an inner end and an outer end, said inner end being formed as a hollow cylinder case adapted to be inserted within said female element, said male element adapted to rotate with respect to said female about an axis parallel to said central axis, said hollow cylinder being provided with a pear-shaped opening having a wider and a thinner portion, said pear-shaped opening lying in a plane normal to said central axis for receiving said locking pin, said hollow cylinder case comprising a hole for receiving a spring pin, said spring pin having a plane perpendicular to said central axis for engagement into said elongated slot, said outer end of male element including a keyway;biasing means for outwardly biasing said male element with respect to said female element;said lock having an open position and a closed position, said lock being in said open position when the wider portion of said pear-shaped opening of said male element and said opening of said female element are in registration for receiving said locking pin, and said closed position when once said locking pin is engaged within said male element, said male element is pushed inwardly through said keyway so to release said spring pin out of said recess of said upper end into said elongated slot and said keyway is further rotated at a predetermined position so that said locking pin is engaged with the thinner portion of said pear-shaped opening of said female element and said spring pin is driven into said lower end of said elongated slot.