Engageable and disengageable safety latch

A latch comprising:

• a stop member for latching said latch;
• a mechanical latching means for latching engagement with said stop member, said latching means having an apex portion and a support arm that extends away from said apex portion and a latching arm that extends away from the opposite side of said apex portion, said support arm and said latching arm are substantially parallel to each other, wherein said support arm is substantially rigid, said latching arm having an abutting mechanism about the center length of said latching arm thereon, wherein said abutting mechanism having an inclined cam surface facing said apex and an abutment surface facing away from said apex, said latching arm having a flexible portion between said cam surface and said apex and a substantially rigid release lever portion extending out from said abutment surface, said latching arm having a first position in which said abutment surface is engageable with said stop member and a second position in which said abutment is not engageable with said stop member;
• pivot means for pivotally mounting said latching means to a support thereon, wherein said abutting mechanism is pivotable about said pivot means between a latchable position where said abutting mechanism engages said stop member and an unlatchable position where said abutting mechanism does not engage said stop member;
• spring means disposed between said support and said pivot means for resiliently biasing said restraining member in a predefined engageable position, and in a predefined position which is not engageable with said stop member.