Patent attributes
A two-way reciprocating structure includes a body, a rotational axis assembly, a flexible element and a reciprocating member. The rotational axis assembly is disposed on the body. The flexible element has a first flexible end and a second flexible end, the first flexible end is connected to the rotational axis assembly. The rotational axis assembly is rotated by a force along a rotating direction to wind the flexible element around the rotational axis assembly, and the rotating direction is a clockwise direction or a counterclockwise direction. The reciprocating member has a first reciprocating end and a second reciprocating end. The first reciprocating end is disposed on the body, and the second reciprocating end is connected to the second flexible end and is simultaneously displaced with the second flexible end, wherein the rotational axis assembly is restored via a restoring fore relative to the force provided by the reciprocating member.