Patent ID: 8279598

Claim:
A semi-auto sliding mechanism, including: a first member; a second member, movable with respect to the first member and forming a recess; a first rack, disposed on the first member; a second rack, disposed on the first member; a pinion gear, pivotally connected to the second member and movably engaged with the first and second racks; and a clockwork spring, received in the recess and connecting the pinion gear with the second member, wherein when the first member is moved relative to the second member by an external force from an initial position to a first position, the pinion gear rotates in a first direction and rolls along the first rack, wherein when the pinion gear is in the first position with the external force being released, the clockwork spring impels the pinion gear to rotate in a second direction opposite to the first direction and to roll along the second rack so as to impel the first member from the first position to a second position relative to the second member wherein the first rack comprises a first main body, a first one-way ratchet disposed at an end of the first rack, and a first coil spring movably connecting the first main body with the first one-way ratchet.