Patent ID: 8069533

Claim:
A coupling device adapted to be connected foldably to a pair of frame rods of a baby crib frame structure, each of the frame rods having a connecting end, said coupling device comprising: a coupling seat; a pair of rod coupling components, each of which is adapted to be connected to the connecting end of a respective one of the frame rods, said rod coupling components being coupled movably to said coupling seat and being movable relative thereto between a first position corresponding to an unfolded state of the frame rods, and a second position corresponding to a folded state of the frame rods; a pair of locking components connected pivotally to said coupling seat and movable relative to said coupling seat between a locking position, where each of said locking components prevents movement of a respective one of said rod coupling components from the first position to the second position, and an unlocking position, where each of said locking components permits movement of the respective one of said rod coupling components from the first position to the second position; and a release unit including a linking component extending between said locking components and formed with two spaced apart elongated guide holes that are respectively adjacent to said locking components, a pair of coupling pins each extending through and being movable along a respective one of said guide holes and being connected to a respective one of said locking components, said linking component being movable relative to said coupling seat from an initial position to an operated position, where said linking component drives movement of said locking components through said coupling pins from the locking position to the unlocking position, and a biasing member for biasing said linking component to the initial position, wherein each of said rod coupling components has a contact surface, and each of said locking components has a connecting plate that is formed with an abutment surface for abutting against said contact surface of the respective one of said rod coupling components to lock the respective one of said rod coupling components at the first position when said locking component is at the locking position, wherein said coupling seat is provided with a pair of pivot pins for connecting pivotally and respectively said locking components to said coupling seat, each of said rod coupling components further having a recess that is formed at one end opposite to said contact surface thereof for holding removably a respective one of said pivot pins when said rod coupling components are at the first position.