US Patent 9091295 Safety hook

A safety hook including a hook body, a latch member, a locking portion, and a control member is disclosed. The latch member is capable of rotating about a guide pin and swinging along a guide slot in an arc-shaped path to open or close a hook opening, wherein when the latch member locks and closes the hook opening, the locking portion and the guide pin form a locked chain structure to bear a lateral impact force on the latch member. When the latch member rotates about the guide pin and swings along the guide slot in an arc-shaped path to open or close the hook opening, the control member is capable of driving the locking edge to release the locking portion, so as to open the hook opening by a swinging movement of the latch member.