Abstract: The present invention relates to a retractable frame of projection screen comprises, a receiving case; a cylinder; a supporting arm; a main retractable arm; and an upper support; when folding, the upper support is downwardly pressed, then the cylinder retractable arm is forced to inwardly retract by the cylinder and the driven retractable arm is inwardly retracted toward the main retractable arm until the cylinder retractable arm is fully received in the cylinder and the driven retractable arm is fully received in the main retractable arm, so the projection screen, the upper support, the supporting arm, the connecting member and the main retractable arm are received in the accommodating space.

Abstract: The present invention relates to an energy-saving writing instrument comprises: a thin film layer; and an interface modification member that is applied on a surface of the thin film layer or is uniformly provided on the thin film layer; after being combined, the surface of the thin film layer is provided with functions of allowing a pencil, ball pen, water-based pen or oil-based pen writing thereon and wiping off.

Abstract: The present invention relates to a retractable frame of projection screen comprises, a receiving case; a cylinder; a supporting arm; a main retractable arm; and an upper support; when folding, the upper support is downwardly pressed, then the cylinder retractable arm is forced to inwardly retract by the cylinder and the driven retractable arm is inwardly retracted toward the main retractable arm until the cylinder retractable arm is fully received in the cylinder and the driven retractable arm is fully received in the main retractable arm, so the projection screen, the upper support, the supporting arm, the connecting member and the main retractable arm are received in the accommodating space.

Abstract: The present application provides an improved playpen that can be transformed into a rocking cradle. The playpen becomes a rocking cradle due to pivoting arcuate tubes fitted to a bottom of the playpen. Therefore, it is easier for the parents to coax infant to sleep comfortably in that type of the playpen. More importantly, the arcuate tubes can readily be pivoted to their first configuration whereby the rocking cradle is converted back into the conventional playpen.

Abstract: A foldable bed which can be detachably mounted onto a crib has a foldable main frame and a foldable secondary frame pivotally connected with the main frame. The main frame is able to be detachably mounted onto the crib and the secondary frame is able to be detachably and pivotally mounted on top of the main frame. The secondary frame has a fabric mat fitted thereto, onto which a baby can be placed at a height convenient for changing of a diaper. When the folded bed in not in use, it is convenient for the user to dismount the foldable bed from the crib and fold it for storage.

Abstract: A device for a stroller having a driving member, a driven member and a recovery member is able to control folding and unfolding processes of the stroller easily.

Abstract: A foldable mechanism for use in a stroller enables a user to fold the stroller by only a single foot while both of the user's hands are not available. In addition, the user is also able to fold the stroller by a single hand with a switch mounted on a handle of the stroller through a traction element which is securely connected to a retainer of the foldable mechanism, thus while either the switch or the foldable mechanism is being operated by the user, the other one will also be moved because the traction element is connected therebetween.

Abstract: A stroller includes a handle, a foldable mechanism securely connected with the handle, a pair of rear supports pivotally connected with the foldable mechanism and a pair of front supports pivotally connected with said foldable mechanism. The foldable mechanism has an upper controlling member having a pivotal switch received therein and a channel for receiving a coil spring therein and a lower controlling member having a stepped engagement surface provided thereon. A stepped engagement surface is formed on the switch such that the stepped engagement of the switch will match with the stepped engagement surface of the lower controlling member and provide a strong construction configuration when the stroller of the invention is in use and therefore is able to prevent accidental collapse when the stroller is receives a great impact.

Abstract: A controlling structure of a stroller enabling a user to release a seat includes a driving block and a driven block respectively engaged with each other through respective teeth integrally formed on a respective upper end face and a respective lower end thereof and a wire having a first end thereof securely connected with a control bar and a second end thereof securely connected with the driving block such that when a user pulls the control bar, the driving block will move along in the same direction as the control bar, and the driven block will thus be forced to move sideward. When the driven block is moved sideward, a projection of the driven block originally received within a side hole of an armrest will also be moved out of the side hole. Thus, a seat having a hole defined in respective side thereof and initially having the projection of the driven block received within the hole is able to be lifted by a user.

Abstract: A telescopic handle for a stroller comprises a handle, a pair of middle tubes securely fixed with the handle, a pair of outer tubes each securely fixed with a respective one of the middle tubes and the handle and having a through hole and a pair of inner tubes each movably received within the middle tubes and having a slot and a plurality of holes opposed to the outer tube holes. A controlling device is received within the through hole of each outer tube for determining which of the holes of the inner tube are selected and accordingly lengthen the handle or shorten the handle.

Abstract: A stroller is designed to have a multi-step foldable mechanism which includes a connector having holes for receiving a back support with a long slot, a locking member having a stepped protrusion, a blocker, a tubular projection and a plate, and a receiving member for pivotally receiving the back support and securely receiving a front support. After the back support is inserted into the connector through the tubular projection of the locking member and one of the holes of the receiving member, a resilient member is inserted into a bottom of the back support and is suspended within the back support by a pin inserted into the locking member and received within the long slot of the back support, such that, when the blocker is lifted upward by a cylindrical projection formed on an outer periphery of an outer tube which is enclosing an arm of a handle, the stroller is folded.

Abstract: A walking chair having a pair of opposed arcuate side frames and a front rod pivotally connected with corresponding first distal ends of the arcuate side frames, a rear rod opposed to the front rod and pivotally connected with corresponding second distal ends of the arcuate side frames, such that when a folding device which is provided at joints of the front rod and the first distal ends of the arcuate side frames and of the rear rod and the second distal ends of the arcuate side frames is activated, the arcuate side frames are able to be folded and then positioned in place to allow the arcuate side frames to engage with the ground to allow a walking chair converted into a rocking chair.

Abstract: A stroller is provided to have a "U" shaped handle, a pair of supports pivotally connected with the handle through a joint having a plurality of spaces provided therein for receiving a switch provided on and pivotally connected with the joint and a pair of detachable wheel mechanism respectively and securely mounted on a distal end of each of the support. The stroller is then able to be folded and used as a back-pack to continue to carry a baby within the stroller while walking in the field or over any rough terrain.

Abstract: A baby walker includes an upper part, a lower part having wheels disposed thereto and two pairs of crosswise connected links connected between the upper part and the lower part, a seat member having a back member received therein and securely connected to the upper part. The upper member has two apertures defined diametrically opposite to each other and two first hooks formed to an underside of a periphery defining each of the apertures. The back member has two second hooks extending therefrom so as to be engaged with the first hooks.

Abstract: A stroller is provided to have an adjustable device for changing degree of inclination of a back seat. The adjustable device comprises an adjusting device and a seat back pivotally connected thereto. A user is able to use only one hand to change the inclined angle of the back seat through the linkage between the adjusting device and the backing racket of a tracking device.

Abstract: A foldable device for a crib enables the crib to be folded for storage. The foldable device includes an upper foldable member to which a number of transverse bars pivotally connected with a number of vertical bars are pivotally connected thereto and a lower foldable member to which a number of transverse arms pivotally connected with the number of vertical bars are pivotally connected therewith. With the upper foldable member and the lower foldable member, the crib of the invention is able to be folded.

Abstract: A trolley folding assembly includes a driving device and a driven device. A person is able to fold the whole trolley with only one hand by first pressing a safety switch and then pulling a driving rod received within a link of the driving device.

Abstract: A foldable stroller includes a controlling device mounted to a U-shaped handle tube and a folding device. The controlling device includes a front and rear covers, a disk secured to the central portion of the handle tube and disposed between the front cover and the rear cover, two opposite circumferential grooves each defined at a periphery of the disk, two cables received in respective grooves and an end of each of the cables is secured to the disk. A latch is pivotally mounted to the central portion of the handle tube and is in contact with the disk. The folding device connects an upper end of each of a pair of front members, an upper end of each of a pair of rear members and an associated lower end of side portions of the handle tube and comprises a positioning seat securely mounted to each of the upper ends of the front members. A seat is slidably disposed on the upper end of the positioning seat and defines a first receptacle.