Abstract: A joint structure with a stable unlocked state for a foldable playpen, comprising a pair of upper rails, a rigid shroud, a pair of lock pins, a pair of spring biased pin-carriers, and a release actuator. The pair of upper rails each have a necked portion and a pushing element; the rigid shroud is pivotally connected between the pair of upper rails; the pair of spring biased pin-carriers is installed within the rigid shroud for carrying the pair of lock pins to engage with the necked portion, thereby locking the pair of upper rails in a use position and to leave the necked portion to release the pair of upper rails from the use position. The pair of spring biased pin-carriers are featuring with a side extension flap for abutting against the pushing element, and an associating short arm for keeping the pair of spring biased pin-carriers to rotate in an opposite directions simultaneously.

Abstract: A stroller frame with a swivel seat and a limiting mechanism comprises at least a wheeled frame, a seat support, a handle bar and a limiting mechanism. The wheeled frame has a front wheel side and rear wheel side. The seat support is pivotally mounted atop the wheeled frame, and selectively may have a forward facing direction and a rearward facing direction positioned by a locking member. The handle bar is pivotally and lockably connected to the seat support and associated with the locking member for interchanging the facing directions of the seat support. The limiting mechanism is associated between the wheeled frame, the seat support and the handle bar, for preventing the push bar from rotating toward the front wheel side while tilting up the push bar and rotating the seat support for interchanging the facing directions.

Abstract: A joint assembly with safety locking mechanisms for baby stroller, the baby stroller frame may have at least a front strut, a rear strut and an upper bar; and the joint assembly includes a lower joint member, an upper joint member, a first locking mechanism, a second locking mechanism and a release mechanism. The lower joint member is pivotally connected with the upper end of the front strut and pivots with the rear strut through a pivot mount atop the rear strut. The upper joint member pivots with the lower joint member and connects with the lower end of the upper bar. The first locking mechanism is adapted to releasably lock the lower joint member to the upper joint member thereby to inhibit the potential relative rotation between the lower joint member and the upper joint member. The second locking mechanism is adapted to releasably lock the rear strut to the joint assembly thereby to inhibit the potential relative rotation between the rear strut and the joint assembly.

Abstract: A quick release locking mechanism for securing an infant carrier to a base, includes at least a transversal bar, a spring-loaded locking element, a manipulating element and a linking element. The infant carrier is formed with a downward holding slot on the underside thereof, and the base is formed with a upper surface for supporting the infant carrier thereon. The transversal bar is fixed on the base in a position relative to the downward holding slot. The spring-loaded locking element is pivoted on the infant carrier for closing the downward holding slot and retaining the transversal bar within the downward holding slot automatically while the infant carrier is resting on the base. The linking element is connected between the spring-loaded locking element and the manipulating element, and the manipulating element is operatively mounted on the infant carrier for driving the spring-loaded locking element in a remote position.

Abstract: An inclination adjustment mechanism for a base of safety seat includes a base, a heelpiece and a spring-loaded press button. The base has one end formed with a plurality of positioning indents, and a upper surface for supporting a safety seat. The heelpiece is pivoted to the base and formed with a protruded portion for selectively engaging with one of the positioning indents thereby to keep the base in a selected inclination position. The spring-loaded press button is operatively connected to one end of the heelpiece for releasing the protruded portion from the positioning indents, so as to change the selected inclination position of the base by pressing the spring-loaded press button and moving one end of the base relative to the heelpiece.

Abstract: A joint assembly for baby stroller includes at least a first joint half and a second joint half, the first joint half pivotably connected with the second joint half. The first joint half is featuring with connecting a lower bar through a bended section or a bended connector, and the second joint half is featuring with connecting an upper bar through another bended section or bended connector bending in opposite direction, so as to limited the upper bar and the lower bar to rotate in different planes and spaced apart from each other thereby to prevent user's finger pinched by the gap between the upper bar and the lower bar.

Abstract: A joint structure for a collapsible play yard, includes a U-shaped housing, a button-mount, a sliding block and a button. The U-shaped housing has a pair of side walls for pivoting with a pair of frame bar members each having a length of substantially flattened undersurface. The button-mount is formed with a sliding way, attached to one of the side walls. The sliding block is movable transversally engaging with the substantially flattened undersurface of both of the frame bar members in an engaged position, and movable to a released position to release both of the frame bar members for folding the collapsible play yard. The button connects with the sliding block and is biased by a resilient element for reciprocally sliding along the sliding way so as to drive the sliding block to the engaged position and the released position.

Abstract: A folding stroller comprises a stroller frame and a foldable and detachable seat (4), the stroller frame (10) having a supporting rack (14) for providing a first engaging site (2) and a second engaging site (3). The foldable and detachable seat (4) can connect to the stroller frame (10) at the first engaging site (2) and the second engaging site (3), and can be released from the first engaging site (2) by folding its seat back (42), and thereafter disengaging from the second engaging site (3) by pulling a releasing member (64).

Abstract: The foldable baby stroller frame comprises a collapsible wheeled frame, a foldable upper frame, and at least a release mechanism. The collapsible wheeled frame comprises at least a front strut, a pair of rear struts and a lockable swivel base. The lockable swivel base is pivotally connected with the front strut and the rear strut, including a spring-loaded abutting slider for fixing the front strut and the rear strut in a using position. Preferably, a spring-loaded positioning member is installed for releasably engaging between the foldable upper frame and the lockable swivel base to fix the direction of the foldable upper frame.

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 driving members in the housing pivotal in opposite directions a push button engaged with driving members, and a pair of steel cables coupled to the driving members. Whereby press push button to pull steel cables toward the center of gripping portion, thereby unlocking the latches so as to unfold the stroller. The stroller further comprises a safety mechanism at the upper side of one driving member. Safety mechanism comprises a pawl-like member blocks the push button in the locked state of the stroller, thus preventing latches from accidentally being unlocked.