Abstract: The present invention is a collapsible self-propelled chair on wheels that is lightweight in construction and easily collapsed, carried, stored and transported by public or private means. The chair performs the function of a wheelchair while avoiding the appearance of a traditional wheelchair thus avoiding the invalid stigma often associated with wheelchairs. It can be configured as an assistive mobility device to fill the unmet needs of aging healthy adults who wish to retain their independence and social interactions or a medical device to assist those with medical needs. Additional features such as an armrest, a footrest, or a reclining back are easily added during manufacture and because of the chairs uncomplicated design and duplicity of parts, it is very economical to manufacture.

Abstract: A pediatric assistance device useful in enabling a pediatric patient to participate in developmental and social stimulus during medical interventions.

Abstract: A foldable wheelchair (21) and foldable wheelchair frame assembly (26, 126) including a pair of side frames (24, 124, 224, 324), a cross-bracing frame assembly (36, 136) coupling the side frames (24, 124, 224, 324) together for movement transversely between a spaced apart deployed position and a proximate folded position. A variable length link assembly (61, 161, 261, 361) is mounted into and forms a part of the cross-bracing frame assembly (36, 136) in a position between at least one of the side frames (24, 124, 224, 324) and a remainder of the cross-bracing frame assembly. The extensible link assembly (61, 161, 261, 361) being formed for variation of the overall length in a direction extending transversely between the side frames (24, 124, 224, 324) during movement of the side frames (24, 124, 224, 324) between the deployed and the folded positions so as not to force the side frames (24, 124, 224, 324) into unparallel motion which causes the upholstery to bind the folding mechanism.

Abstract: A collapsible wheelchair assembly includes left and right frame sections that are separably fastened using a slide tube assembly. The slide tube assembly is fastened to the frame section with locking pins that can be manually removed without tools. The design allows the right and left frame sections to be completely separated for transport and storage.

Abstract: A seat rotating device for a baby stroller includes a rotation unit connected to an underside of the seat and two insertions on two sides of an underside of the rotation unit are inserted into a positioning unit. The rotation unit has a disk and the seat is connected to the disk. The disk has a plurality of positioning holes defined in a periphery thereof. The disk is pivotably connected to a base by a shaft extending through a center of the disk and the base. The base has two wings and the two insertions are inserted into the wings. Each wing has a biasing member inserted therein which his connected with a cable. The biasing member is inserted into one of the positioning holes to position the disk and the seat at an angle.

Abstract: A transportable booster seat and optional carrying bag are provided. The booster seat has a seat cushion, optional arms on respective sides of the seat cushion, wheels beneath the booster seat in the rear area of the booster seat, and a retractable handle in or adjacent the bottom of the booster seat, extendable in and out of the front area of the booster seat. The carrying bag has at least one storage compartment, a top strap adapted fit over the retractable handle of the booster seat, and optional side straps adapted for securement to the arms of the booster seat.

Abstract: Multi-mode child entertaining apparatus and methods of using the same are disclosed. A disclosed apparatus may be configured as a walker alternative which includes a base, a seat, and a wheeled walker to at least partially support the seat above the base. The wheeled walker is removable from the base for use apart from the remainder of the apparatus.

Abstract: A collapsible, foldable support structure and conveyance has a frame assembly with multiple interconnected frame members, junction blocks located at intersecting ends of some of the frame members, and wheels attached to the junction blocks or directly to frame members. Fixtures are attached to or integrally formed with the junction blocks for mounting of wheels or other conveyances or components to the frame assembly. A support structure is attached to the frame assembly to support a load such as a human or cargo or both. In a folded configuration, the frame members are moved into a generally parallel arrangement and the junction blocks and conveyances attached to the junction blocks or frame members are drawn together.

Abstract: A mobility aid, such as a wheelchair or walker, includes first and second structural members and a fastener for connecting the members together. A washer has first and second portions connected by a bridge portion, each with a fastener opening for receiving the fastener. The washer is self-supporting on a structural member to take the place of two individual washers. A method of connecting first and second connecting members to a frame member of a personal mobility aid includes placing a washer on the frame member so that the washer has first and second portions spaced apart on opposite sides of the frame member; placing the first and second connecting members adjacent the first and second portions of the washer; and fastening the connecting members and the frame member and the washer together with a fastener.

Abstract: An ambulance cot is provided having a wheeled carriage, a frame for mounting the wheels, a horizontally oriented patient litter supported from the wheeled carriage and variable, pneumatically powered height scissors frame. The pneumatic actuator is designed to give a patient air-ride transportation and an adjustable height litter for lifting a patient from the ground. The patient litter has a pivoting hinge for transporting a patient down stairs. This pivot will allow the stretcher to pivot to a horizontal angle while going down stairs, for patient support and ease of transportation for said operator below. One embodiment has tracks attached over the wheels to provide a more stable and smooth ride as the cot is moved down stairs. Another embodiment comprises a translational trolley configuration. A hand brake is mounted on the patient litter for braking the tank-like motion of the tracks.

Abstract: The apparatus is a reduced size baby stroller with a structure that counteracts the usual lengthening when the stroller is folded. The rear wheels of the stroller are interconnected with the front legs and attached to the rear legs by a pivoting wheel link so that the rear wheels do not separate from the front wheels when folded, but instead pivot out of alignment with the rear legs. The stroller handles are mounted on tubes that can telescope inward because all the attachments to the outer tubes are made by external fixtures that do not penetrate into the interior of the tubes, and the canopy can also slide inward when the stroller is folded because the canopy frame is mounted on a fixture with a track.

Abstract: A collapsible, foldable support structure and conveyance has a frame assembly with multiple interconnected frame members, junction blocks located at intersecting ends of some of the frame members, and wheels attached to the junction blocks or directly to frame members. Fixtures are attached to or integrally formed with the junction blocks for mounting of wheels or other conveyances or components to the frame assembly. A support structure is attached to the frame assembly to support a load such as a human or cargo or both. In a folded configuration, the frame members are moved into a generally parallel arrangement and the junction blocks and conveyances attached to the junction blocks or frame members are drawn together. In one embodiment, two of the frame members are hinged, and the junction block associated with the hinged frame member is able to slide over the hinge. The hinged frame members also serve as a foot rest support when the frame assembly is in an unfolded configuration.

Abstract: A wheelchair that enables its occupant to lower and raise their self to and from the surface on which the wheelchair is resting so that the occupant may enter the wheelchair from the surface without the aid of another person, the wheelchair a lower support frame, a seat frame assembly vertically movable relative to the lower support frame, a lifting assembly connected to the lower support frame and to the seat frame assembly, a planar ramp rotatably connected to the seat frame, the planar ramp rotating to form an inclined plane relative to the plane of the seat frame, the planar ramp rotating to a vertical position relative to the horizontal seat beneath the horizontal seat when the seat frame assembly is at its highest vertical position, and a footrest rotatably, the footrest rotating to a horizontal position when the seat frame assembly is at its highest vertical position, the footrest rotating downward beneath the ramp when the seat frame assembly is at its lowest vertical position.

Abstract: A wheel chair includes wheel frames which can be adjusted up and down, moving devices and brake devices are connected to two respective sides of the two wheel frames. Support devices are connected to the wheel frames so as to adjust the depth of the wheel frames to which arm rest devices are connected. A folding device is connected between the wheel frames and an assistant device is connected to the folding device. A positioning device is connected to the assistant device so that the wheel chair can be adjusted in many ways to meet different needs of users. The modularized devices effectively reduce manufacturing cost of the wheel chair.

Abstract: A wheeled car seat sized to hold an infant or young toddler in the seat of an automobile that can also be converted to a wheeled stroller is disclosed herein. The wheeled car seat is made from materials to protect the occupant while at the same time keeping the weight of the wheeled car seat to a minimum. When removing the wheeled car seat from an automobile, the user need not remove the child passenger while the user converts the wheeled car to a stroller, but instead only need lift the car seat above the ground and allow a pivotal chassis to swing open and expose wheels to the ground. When the wheeled car seat is configured as a car seat, the wheels are enclosed to prevent dirt from getting on the upholstery of the automobile.

Abstract: An infant stroller includes a lower frame with wheels coupled thereto and an upper frame extending upwardly from the lower frame. A carriage body is supported atop the upper frame and includes a bottom for supporting an infant with side, front, and rear walls extending upwardly therefrom. A canopy shaped like a helmet includes side walls pivotally coupled to the carriage body side walls adjacent the rear wall thereof. The canopy is pivotally movable between a first configuration situated substantially over a rear portion of the carriage body for shielding the infant and a second configuration substantially beneath the carriage for partially exposing the infant. A face shield bar is pivotally coupled to the canopy on which toys to amuse the infant may be suspended. The bar may be pivotally moved to a non-use configuration. Organizational indicia may be positioned or imprinted on each canopy side wall.

Abstract: A stroller that accepts and supports various types of child's car seats is easily converted from its operational state to its storage state by actuating a latching mechanism. The stroller includes a lever which facilitates the removal of the child's car seat. A seat assembly can be attached to the stroller to convert the stroller from a child's car seat carrier to a toddler stroller. The seat assembly remains in the upright position when the stroller is converted from the storage state to the operational state.

Abstract: The present invention is a portable chair with caster wheels that is lightweight in construction and easily collapsed, carried, stored and transported by public or private means. The chair can be configured as an assistive mobility device to fill the unmet needs of aging healthy adults who wish to retain their independence and social interactions. It can also be configured as a collapsible office chair to meet the needs of employers with temporary working staff and for use by college students in crowded dorm rooms. Additional features such as an armrest, a foot rest, or a reclining back are easily added during manufacture and because of the chairs uncomplicated design and duplicity of parts, it is very economical to manufacture.

Abstract: A sports utility stroller includes a boundary frame including a top and bottom frame to form a playpen cavity therebetween, a stroller frame including a pair of side frames, which supports two sides of the boundary frame, each including a first side frame leg and a second side frame leg pivotally connected with each other, and a pair of locking arrangements for securely locking up the two side frames so as to retain the boundary frame at an unfolded position, wherein at the unfolded position, a top frame is lifted up from the bottom frame to form the playpen cavity having a predetermined depth, and at a folded position, the first and second side frame legs are pivotally folded to drop the top frame towards the bottom frame, so as to minimize the depth of the playpen cavity.

Abstract: A collapsible wheelchair for allowing a user to easily tote a wheelchair along on a public transportation such as an airplane and bus. The collapsible wheelchair includes a collapsible seat support assembly; wheel assemblies upon which the collapsible seat support assembly is mounted; brackets mounted to the collapsible seat support assembly; wheels rotatably mounted to the brackets; a seat member supported by the collapsible seat support assembly; footrest assemblies attached to the collapsible seat support assembly; handle members mounted to the collapsible seat support assembly; strap members attached to the seat member for securing a person upon the seat member; and a storage bag for storing the collapsible wheelchair.

Abstract: A collapsible stroller chassis has two laterally arranged scissor frameworks, which form a top part, and a substructure which bears the wheel axles. The substructure and ends of the scissor arms of the scissor frameworks are connected to one another by articulations such that, at least in the erected state of the top part, an effectively rigid structural unit is formed by the substructure and by the top part.

Abstract: A table carrier comprises a support member and a plurality of wheels that are coupled to the support member. A stand is also coupled to the support member and defines a holding region for receiving and holding a table. In turn, the table comprises a base and a top that is coupled to the base. The holding region is configured to receive the base with the top extending alongside the stand.

Abstract: A baby pushchair according to the present invention comprises a left handle bar and right handle bar; a left side bracket and right side bracket arranged symmetrically, each of which includes a front leg with a front wheel mounted at the lower end thereof and a rear leg with a rear wheel at the lower end thereof; a seat arranged between the left and right side bracket; a left armrest and right armrest, each front end of which is connected pivotally to the upper part of the left rear leg and the right rear leg respectively and each rear end of which is connected to the left handle bar and the right handle bar respectively; wherein the left/right front leg and the left/right rear leg crosses and connects pivotally to each other at the crossing part, and the left/right handle bars is connected pivotally with the upper part of the left/right front legs.

Abstract: An apparatus for use with umbrella types of folding strollers includes a platform with two casters disposed under opposite rear corners thereof. A pair of members are attached to the platform and extend vertically a predetermined distance from two opposite front corners. The pair of members each include a ninety degree radius turn and continue to extend in a direction away from the rear of the platform. The pair of members each terminate in a loop, at least one of the loops having an axial offset wherein an end thereof is disposed further away from a center of the apparatus than is the remainder of the loop. A rod with an offset weight at a first end is provided. The main longitudinal axis of the rod includes a jog at an opposite second end. The rod can be inserted through the loop having the axial offset only if the offset weight is held vertically above the main longitudinal axis of the rod.

Abstract: A collapsible stroller chassis has two laterally arranged scissor frameworks, which form a top part, and a substructure, which bears the wheel axles. The substructure and the facing ends of the scissor arms of the scissor frameworks are connected to one another by articulations such that, at least in the erected state of the top part, an effectively rigid structural unit is formed by the substructure and by the top part.

Abstract: A tilt-in-place wheelchair having adjustable wheelbase includes front and rear side frames, hinged cross members supported on the frames, an adjustment rail supported on the frames for rotation relative to the frames, a block slideably supported on the rail and hinged to one pair of cross members, a latch supported on the rail and adapted for releasable engagement with the rail so that the block is alternately fixed to the rail to maintain the width of the wheelbase or released from the rail to allow adjustment of the wheelbase.

Abstract: A moveable load-carrying assembly including a chassis (1) having a plurality of wheels (6) arranged as a first wheel set and a second wheel set, each wheel (6) being rotatable and swivellable relative to the chassis (1); the wheels (6) of the first wheel set being connected by a first linkage (21), and the wheels (6) of the second wheel set being connected by a second linkage (22); and wherein one of the wheels (6) of the second wheel set is linked to the opposite one of the wheels (6) of the first wheel set by a link (11) such that when one of the wheels (6) of the first wheel set is swivelled in one direction relative to the chassis (1), all the wheels (6) of the first wheel set swivel in that direction in unison, and all the wheels (6) of the second wheel set swivel in the opposite direction in unison. Means are included to provide three distinct modes of operation for a wheel set, the modes corresponding to straight-line travel, fully-steerable travel and a braking mode.

Abstract: A foldable stroller includes: a frame consisting of a pair of handle bars, a plurality of wheel bars pivotally secured to the handle bars having a plurality of wheels rotatably mounted on the wheel bars, a pair of seat bars pivotally connected with the wheel bars for supporting a seat, a pair of bottom struts diagonally pivotally secured on a bottom portion of the stroller and a pair of back struts diagonally pivotally secured to a back portion of the stroller for foldably linking the wheel bars and handle bars; with each bar or strut made of plastic-clad bamboo strip for preventing moisture corrosion, for comfortable seating and ergonomic handling.

Abstract: A collapsible wheeled flexible bag carrier (10) including a wheeled framework unit (11) having a pair of inverted generally U-shaped support members (20), (20)′ pivotally connected to one another and each having a pair of hollow support legs (21), (22), (21′), (22′) provided with wheel assemblies (30) and connected on their respective upper ends by cross pieces (23) wherein the lower ends of one pair of support legs (21), (22) are connected to a towing unit (13). In addition, each of the cross pieces (23), (23′) is provided with at least one tethered spring loaded clamp member (40) having jaw elements (44) that are further provided with semi-cylindrical extensions that increase the frictional surface area contact between them, the clamp members (40) and a portion of a flexible bag draped over one of the cross pieces (23), (23′).

Abstract: A locking anti-theft device operates between any paired collapsedly opposed members of a folding wheelchair to selectively prevent folding. Each end of the anti-theft device is attached, either permanently or removably, to any paired collapsedly opposed members of the wheelchair such that when the device is in the locked position the central pivot point, about which the left and right portion of the device are pivotally attached, is restricted from pivoting thus preventing the wheelchair from folding.

Abstract: A stroller includes two right and left front legs respectively having front wheels mounted on the lower ends thereof, two right and left rear legs having rear wheels mounted on the rear ends thereof, two right and left hand-push frames, each hand-push frame including an upper portion curved in an inverted-L shape to form a horizontal portion and a vertically extending lower portion, said lower portion of said hand-push frame being inserted into upper and lower holders respectively fixed to the upper end and substantially central portion of said front leg and being supported by said upper and lower holders, a first open/close link formed in an X shape and mounted rotatably between said upper holders of said two front legs and the rear portions of said two rear legs, a second open/close link formed in an X shape and mounted rotatably between the lower ends of said two hand-push frames and the substantially central portions of said two rear legs, and a connecting portion connecting said horizontal portions of sa

Abstract: A collapsible and portable cart. The cart comprises a selectively collapsible frame for receiving therein a carry bag when the frame is in an open, usable position, at least one handle extending from the frame, a plurality of wheel assemblies and a floor array comprising a plurality of support bars and a weight bearing assembly located substantially centrally of the floor array. The weight bearing assembly of the floor array is comprises a top plate member and a plurality of downwardly extending support members, the support members being so situated as to create slots therebetween for receipt therein of one end of one of the support bars.

Abstract: A wheelchair having a seat and a plurality of wheels for rolling the wheelchair along a ground surface. A plurality of legs are provided for supporting the seat. Each of the legs is positioned between the seat and one of the wheels. A plurality of struts are also provided. The seat bottom and seat back are pivotally coupled to the seat bottom. The seat back is movable between a folded position and an unfolded position. An actuator for providing at least one actuator output signal in response to movement of the actuator by a user of the device is also provided.

Abstract: A safety-control device of height adjustment for a baby walker includes two opposite planks, a main body and a pressing board. The main body is provided with a lateral opening in the front wall for receiving an elastic article and a stopping button. In the top of the main body is provided with an upper room for the elastic article and the stopping button and an operating block to be placed in. The lower section of the operating block is placed in the hollow of the stopping button, and a fixing pin is used to penetrate through the passing holes of the main body and the long hole of the operating block so as to make the operating block be pivotally assembled with the main body.

Abstract: A simple, durable, lightweight, economical wheelchair is disclosed that offers full convertibility from rigid frame to folding and vice versa, without sacrificing advantages of either design. In addition, it allows conversion to sports, companion, pediatric, front wheel drive, etc. as well as customizing to suit the end user's needs.

Abstract: A integral carry-on child safety seat and stroller. The safety seat includes a base frame having wheels which is supported by collapsible folding members which may be nested in the housing of the safety seat for use in a vehicle whereby the base frame and wheels are expandable upon removal from the vehicle to form a stroller.

Abstract: A fixing safety-control device for a collapsible child walker is composed by a pressing article and an integral stopping board. On one reinforcing rib near the end of the sliding groove in the base member is provided with a crooked groove. The inserting strip provided on one end of the stopping board is inserted into the crooked groove to be fixed, and then the pressing article is penetrated through the sliding groove of the base member to let the front head be inserted into the hole of the stopping board so as to be in a fixed position. When the seat structure being collapsed, the sliding article of the connection structure will be stopped against the stopping surface of the stopping board and fixed so as to keep a safe distance from the base member to prevent a user's hands from being clamped. At last, the pressing article is pressed to let the stopping board separate from the sliding article, and by the elasticity of the hook, the child walker can be collapsed successfully and safely.

Abstract: An improved folding mobile seating structure with a seat and back portion movable relative to a framework, providing more comfort for the user. The seat and back portion may be moved relative to the supporting framework structure as a unit in a pivotal motion relative to the framework, or the arrangement may allow some degree of articulation between the seat and the back. The structure is foldable and is light in weight. The seat and back portion may be pivotal between an upright seating condition and at least a partial recumbent condition, and optionally to a flat horizontal condition. Telescoping tubes may be utilized for connection of the seat and/or the back to the framework for allowing the pivotal motion.

Abstract: The present invention is a connector assembly for use in coupling a wheelchair to a wheelchair lift. The assembly includes a lift connector which has a lower arm and an upper arm, with each arm having first and second ends. An end link joins the first ends of the lower and upper arms, and the second end of each arm is free. A chair mount is removably connectable to the second free end of the lower arm of the lift connector, and is secured to a wheelchair. A lift mount is selectively positionable along the upper arm of the lift connector and is adapted to be coupled to a wheelchair lift.

Abstract: A wheelchair having a seat and a plurality of wheels for rolling the wheelchair along a ground surface. The seat includes a seat bottom and a seat back pivotally coupled to the seat bottom. The seat back is movable between a folded position and an unfolded position. The seat bottom has a back end formed from a first curved shape, and the seat back has a bottom end formed from a second curved shape. The first curved shape of the seat bottom is sized to mate with the second curved shape of the seat back when the seat back is in the unfolded position. A motor coupled to each rear wheels and a control stick is in communication with each motor for independently operating each of the motor to drive and steer the wheel chair.

Abstract: An improved folding mobile seating structure with a seat and back portion movable relative to a framework, providing more comfort for the user. The seat and back portion may be moved relative to the supporting framework structure as a unit in a pivotal motion relative to the framework, or the arrangement may allow some degree of articulation between the seat and the back. The seat and back portion may be pivotal between an upright seating condition and at least a partial recumbent condition, and optionally to a flat horizontal condition. Telescoping tubes may be utilized for connection of the seat and/or the back to the framework for allowing the pivotal motion. Hand release actuators adjacent the handles may allow the seat and back pivotal motion to initiate when pressed and lock the seat and back portion in a fixed pivotal position when released.

Abstract: A base "X" frame is provided in which the arms of the "X" frame are pivotally coupled together at the mid-points thereof for folding from an extended "X" configuration to a laterally folded "X". The "X" frame is generally in a horizontal orientation in the use position of the stroller. A main seating support frame of a generally inverted "U" shape, is provided with the open end of the main seating support frame being pivotally coupled to the front of the base "X" frame. A support structure is also provided, pivotally coupled at the rear of the base "X" frame and pivotally connected to the main seating support frame. A rigid latch is provided to maintain the stroller in a use condition, the latch being releasable to allow the base "X" frame to collapse laterally and simultaneously allow the main seating support frame and primary support frame to collapse vertically against one another and against the laterally collapsed base "X" frame for storage or transport.

Abstract: The disclosed invention is a means of transporting items such as those commonly taken to the beach or on a picnic over sandy or otherwise yielding terrain. The device is comprised of a wheeled, collapsible frame including a bottom frame suitable for supporting larger objects such as an ice chest. The disclosed invention also includes an upper frame which supports a pliable receptacle that is of sufficient size to hold a multitude of miscellaneous items such as blankets, beach toys, clothes, food, etc. The invention includes a retractable chair hanger to support a plurality of folding chairs in a hanging fashion thereby providing a stable environment for transporting the chairs with little risk of loosing the chairs when traveling over rough terrain. In the preferred embodiment, near the midpoint of the chair hanger is a cross bar that is used to support the front portion of the receptacle.

Abstract: The disclosed invention is a means of transporting items such as those commonly taken to the beach or on a picnic over sandy or otherwise yielding terrain. The device is comprised of a wheeled, collapsible frame including a bottom frame suitable for supporting larger objects such as an ice chest. The disclosed invention also includes an upper frame which supports a pliable receptacle that is of sufficient size to hold a multitude of miscellaneous items such as blankets, beach toys, clothes, food, etc. The invention includes a retractable chair hanger to support a plurality of folding chairs in a hanging fashion thereby providing a stable environment for transporting the chairs with little risk of loosing the chairs when traveling over rough terrain. The frame is such that it allows foldability to such an extent that it collapses to a size that can be easily stored and transported.

Abstract: The seat assembly for an interior of a motor vehicle comprises a seat back having a recess including a bottom, and a collapsible stroller having a deployed position and a retracted position adapted to be received in the recess. The stroller includes a pair of opposed frame members defining a plane, a pair of rear wheel support members, a pair of connecting links, and a pair of front wheel support members. Each of the rear wheel support members is connected to a frame member at a first connection point and pivotable thereabout between a first position corresponding to the deployed position of the stroller and a second position corresponding to the retracted position of the stroller. In their second position, the rear wheel support members lie substantially in the plane defined by the frame.

Abstract: A safety device for a stroller includes a first member with a first disk and a second disk which is pivotally connected to the first disk of the first member. The first member is connected to a segment of the stroller and the second disk has a connecting bar connected to another segment of the stroller. A torsion spring is disposed between the first member and the second disk with one end of the torsion spring connected to the first member and the other end of the torsion spring connected to the second disk. The first member has a first protrusion extending laterally from the first disk, the second disk having a second recess defined therein so as to receive the first protrusion therein. The first member has an extending portion extending laterally therefrom which has a first recess defined therein so as to receive a second protrusion extending radially from the second disk therein.

Abstract: A reinforced structure for the joints of the braces on a baby stroller, and especially an improvement of the first and second joints each constructed by a front brace and the rear brace respectively with a corresponding handle. The first joints have engaging ends of predetermined length, the second joints have grooves for receiving the engaging ends. When the baby stroller is unfolded completely, the engaging ends are engaged in the grooves. Stress on the baby stroller can be transferred to the whole structure of the baby stroller rather than concentrated on the first joints. Useful life of the baby stroller can thus be prolonged. A locking device is provided on the first or second joints.

Abstract: A collapsible baby carriage includes a foldable frame including a cradle seat defined by a pair of seat support arms each having one end pivotally connected to a lower end of a guide bracket with a guide bracket having an upper end connected to a pivot member allowing the front legs of the carriage to be folded intermediate their ends a pair of vertical arms are provided each having one end connected to a respective leg of a second pair of legs and an opposite end connected to a leg of the first pair between said pivot member and a second end of a leg of the first pair; the frame includes a pair of rods each having one end rotatably connected to one of the vertical arms intermediate the ends thereof on one side of the frame and a second end pivotally connected to a respective one of the seat support arms intermediate the ends thereof.

Abstract: A stroller that accepts and supports various child's car seats is easily collapsible by actuating the locking hinge using one hand. The collapsible stroller includes a lever whereby the child's car seat can be easily removed from the stroller by activating the lever with one hand and lifting the child's car seat with the other. The stroller is adaptable to receive a multitude of existing child's car seats.

Abstract: In a chair which can change the height of its seat by changing cross angles formed by a pair of first leg members and a pair of second leg members which are rotatably connected with each other at intermediate portions thereof respectively, a caster mounting member is mounted on a lower end portion of each leg member to be rotatable about a horizontally directed axis, and a rotary yoke of a caster is mounted on the caster mounting member to be rotatable about a vertically directed axis. The caster mounting member is connected with a leg mounting member by a connecting link, thereby defining a parallel crank mechanism by the leg member, the leg mounting member, the caster mounting member and the connecting link. Thus, the casters which are mounted on lower end portions of at least either the first or second leg members can regularly serve functions thereof properly regardless of change in inclination of the leg members.