Abstract: A structure for coupling a safety car seat or a stroller seat with a stroller to allow users to use two hands to grasp two sides of the safety car seat or stroller seat and to press a pushbutton adjacent to the palm to release a latch mechanism located below the seat without other people's help. The latch mechanism includes a pushbutton and a latch block. The pushbutton is located beside the handles at two sides of the safety car seat or stroller seat so that a user may grasp two sides of the stroller seat and press the pushbuttons and transmit the pressing force through a transmission mechanism to the latch block and to turn the latch block to release the seat.

Abstract: A locking device for collapsable stroller is located at the gripping portion of handle. The locking device comprises a housing, a pair of meshed gear members in the housing pivotal in two different opposite directions, a push button engaged with gear members, and a pair of steel cables coupled to the gear members. Whereby, pressing a push button pulls steel cables toward the center of gripping portion, thereby unlocking the latches so as to unfold the stroller thereafter. The stroller further comprises a safety mechanism at the upper side of one gear member. Safety mechanism comprises a pawl-like member caught by the gear member in the locked state of the stroller, thus preventing latches from accidentally being unlocked.

Abstract: A safety brake device for a stroller is disclosed. The brake device will automatically preclude the movement of the stroller when the user releases the brake handle. The brake handle is movably mounted to the stroller for being pushed down during manual propulsion of the stroller. A pulling wire connects to the brake handle for operating a brake assembly incorporating with the wheels. The brake handle is movable between a first and a second positions. In the first position without being handled by the user, the brake assembly precludes the rotation of the wheels. In the second position where the brake handle is pushed down by the user, the pulling wire actuates the brake assembly to release the brake and enables rotation of the wheels. When the user leaves the stroller, the brake handle retrieves to the first position, then the wheels are braked and precluded from rotation.