Abstract: A child stroller is disclosed comprising two side frames bilaterally set, each side frame comprising a front leg, a rear leg, the upside of the rear leg being rotatably connected with the rear end of the front leg, and a handspike with the lower end connected to the upper end of the rear leg, a positioning device set at the joint of the handspike and the rear leg, a first crossbar set between the two front legs, a second crossbar set between the two side frames, a first locking mechanism set between the first and the second crossbar, the second crossbar being connected to either the handspike or the rear leg or to both. Being locked in unfolding state by the positioning device and the first locking mechanism, the side frame is mainly composed of a front leg, a rear leg and a handspike. The stroller frame is simple and little interference occurs when folding and unfolding the stroller frame.

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: A personal mobility vehicle includes a housing comprising an internal space, two front wheels, a rear mating member, and a rear telescopic T-shaped handle; a battery powered electric motor in the housing for rotating the front wheels; a control on the handle for controlling movement and steering of the vehicle; and a seat assembly comprising a front foot rest having a corresponding mating member adapted to releasably secure to the mating member, a rear base hingedly secured to the foot rest and including an upward projecting fastening member, at least one rear wheel, a seat, and a seat post extending downward from the seat to pivotably fasten in the fastening member. Detaching the corresponding mating member from the mating member, folding the foot rest toward the base, and folding the base toward the seat post will fold the seat assembly for disposing in the space of the housing.

Abstract: A tandem jogging stroller is disclosed formed of a handlebar, two rear-seat rear frame bars, a rear wheel axle, two rear-seat front frame bars, two rear-seat side frame bars, a movable bracket, two rear bottom frame bars, two front bottom frame bars, two front-seat front frame bars, two front-seat rear frame bars, a front wheel bracket, and a handlebar control mechanism. The two front bottom frame bars are respectively connected to the movable bracket, and the movable bracket is coupled to and movable along the rear bottom frame bars. When collapsing the tandem jogging stroller, the movable bracket and the front bottom frame bars are moved backwards along the rear bottom frame bars to reduce the size for storage.

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

Abstract: A collapsible structure including an upright, a sliding block, at least one collapsible leg, and at least one a jointed structure, wherein the jointed structure includes a joint located on the upright or on the sliding block that includes two distinct jointing points, so that a side of a deployment triangle, which is jointed at the distinct jointing points, constitutes a rigid guiding triangle defined by these two distinct jointing points and by a third joint.

Abstract: A baby carriage folded so as to be reduced in dimension in the width direction comprises a body frame (10) and a seat hammock (20). The body frame includes a seating surface supporting member (11) and a pair of side vertical frame members (12). The seat hammock includes a seating surface sheet part (21) and a backrest sheet part (22). The seating surface sheet part (21) includes a seating surface core (53) and the backrest sheet part (22) includes a back surface core (52). The seating surface core (53) and the back surface core (52) are constituted by a core continuously extending from the seating surface sheet part (21) to the backrest sheet part (22).

Abstract: The present invention is directed to a multi-purpose chair for the disabled that can be used as a passive wheelchair designed to be pushed by an individual to transport the occupant in a sitting position. By adjusting the heights of the legs, it will fit over conventional or handicapped commodes. Removing the legs with locking casters and inserting the stationary legs, the device can be used as a conventional chair. Additionally it can used a commode chair/raised toilet seat/safety frame. The device can also be used in a shower or by lifting one of the cantilevered armrests, and attaching the side bench, it can be used beside a bathtub. Covering the seat with the elastic seat-cover, the device can be used to transport individuals in public places without revealing the toileting applications. The novelty is that this all can be easily assembled or disassembled and carried in a FAA dimensionally compliant carrying case.

Abstract: A foldable stroller includes: a foldable frame having two pivot axles, two opposite lower rods, and two opposite upper rods pivoted to the lower rods through the pivot axles, respectively; a carrier disposed between the pivot axles and including two opposite connecting parts pivoted to the frame through the pivot axles, respectively, and formed with respective first and second arcuate grooves having a respective curvature center coincident with the respective pivot axle; and two limiting units, each of which includes first and second studs that project respectively from a respective one of the lower rods and a respective one of the upper rods into the first and second arcuate grooves of a respective one of the connecting parts.

Abstract: Removable cargo liners for a stroller and methods of using the same are disclosed. An example cargo liner includes a plurality of side walls and a floor coupled to the side walls to define a cargo area that is at least partially open at the top. The side walls and floor are sized to nest at least partially within the cargo basket of a stroller. The cargo liner is releasably secured to the cargo basket such that the cargo liner is removable from the cargo basket without removing the cargo basket from the stroller.

Abstract: A single hand folding structure for an umbrella folding stroller includes a folding set to connect between a pair of side frames of the stroller. The folding set is provided with a driving lever, and a driver is arranged at one of the side frames. A connecting element connects between the driver and the driving element. When a user folds the stroller, the user can pull the driver to move the driving lever via the connecting element and force the folding set to fold so the two sides of the frame are moved inward closely to each other. An elastic element of the frame is utilized to assist the folding of the frame such that the user can fold the frame of the stroller easily and effortlessly. Thus, the user can operate with a single hand, without using a foot, to release the frame to fold.

Abstract: A body receptacle for a wheeled frame allows for the transport of babies in a bicycle trailer. The body receptacle has a flexible mat that is brought into the intended transport form with the help of tensioning devices.

Abstract: A collapsible transport wheelchair having a frame which is collapsible side-to-side with a scissors-like action and is collapsible front-to-back with a sliding action.

Abstract: A collapsible stroller is provided.

Abstract: A baby stroller comprises a collapsible wheeled frame, a swivelable seat, and a swivelable connector connected between the collapsible wheeled frame and the swivelable seat. The swivelable connector is pivotally connected atop the collapsible wheeled frame and has a locking mechanism for fixing the swivelable connector in a plurality of predetermined directions. The swivelable seat has a pair of push bars connected to both sides thereof through a pair of lockable swivel base, wherein the lockable swivel base can be used to lock the push bars either forwardly or backwardly and comprises a driving mechanism for unlocking the locking mechanism so as to permit the swivelable connector to rotate relative to the collapsible wheeled frame 1 thereby to change the direction of the swivelable seat.

Abstract: The disclosed articulated wheel assemblies and associated vehicles, for example wheelchairs, include articulated wheel assemblies with at least one offset connecting arm rotatably attached at one end to a payload platform, for example a seat, and attached at the other end to a linear actuator, where the linear actuator is further connected to a wheel. Embodiments include a rotary actuator for varying the linear actuator swing angle, a rotary actuator for eccentrically rotating a hubless wheel, a linear actuator motor for varying the length of the linear actuator, and a propulsion motor. Embodiments provide omnidirectional motion, stepping action when presented with obstacles, irregular surface negotiation, tight space maneuvering and other features to provide disabled people increased mobility. Alternate embodiments include a payload platform with a support strut, which is rotatably attached to an offset connecting arm and pivotally mounted to a seat.

Abstract: Strollers are provided having one or more components which can be moved by a drive mechanism between two or more desired positions, such as baby strollers having one or more components which are automatically and easily movable by a drive mechanism between an operative position for use of the stroller and a collapsed position for compact storage and transport of the stroller. Various structures and operative embodiments for automatically moving one or more stroller components are provided.

Abstract: A seat carriage body comprises a front leg, a rear leg, a push rod, and position fixing means. An upper end of the front leg is turnably connected to an upper end of the rear leg through a first shaft. A front end member of the push rod is connected to the front leg such that it can be displaced along the front leg at the time of a folding operation. A middle part of the push rod is turnably connected to the rear leg through a second shaft. The position fixing means fixes a positional relation among the front leg, the rear leg and the push rod in both open and folded states.

Abstract: A wheelchair includes at least one side frame connected to a front caster assembly, and a cross-brace assembly. The cross-brace assembly includes a cross-brace member; at least one rear caster assembly connected to the cross-brace member; at least one main drive wheel axle tube fitting connected to the cross-brace member; and at least one arm connected to the cross-brace member. The at least one arm is pivotally connected to the at least one side frame through a pivot joint.

Abstract: A wheelchair includes a chassis with rear wheels and front wheels mounted thereto. A support is pivotally coupled by a pivot axis to the chassis. A seat mount is pivotally coupled to the support. An electric actuator can move the support to cause the seat mount to be moved between raised and lowered positions. A clearance is provided between one or more power supply units and suspension mounts to enable the support to move therein during movement of the seat mount to and from the lowered position. The support and actuator are mounted by a mounting assembly that is mounted by guides so that the mounting assembly can be raised by the actuator to further elevate the seat mount.

Abstract: An embodiment of the present invention discloses a carriage, for instance for a buggy, including a frame to which a number of first arms are pivotally connected, wherein the first arms can be placed in a position of use and in a compact position, wherein the carriage has at least one locking device. An embodiment of the invention is directed to a carriage including at least one second arm which is pivotally connected to at least one first arm, wherein the second arm can be locked in the position of use by at least one locking device. An embodiment of the present invention also discloses a mobile carriage having a frame provided with at least one central part and with at least one third arm which is connected fixedly to the central part, wherein the buggy has a position of use and a compact position.

Abstract: A collapsible stroller has a frame assembly that is reconfigurable between an in-use configuration and a collapsed configuration. The frame assembly has a fold latch on a side of the frame assembly and has two latch parts that are pivotally coupled to one another. A plunger is slidable within a cavity in one of the latch parts and has an end extendible from the cavity. A receiver in the other of the latch parts is positioned to receive the end of the plunger in the in-use configuration. A push arm of the frame assembly has a lower end that is connected to the one latch part. The push arm extends upward and rearward to a handle of the frame assembly. A front leg of the frame assembly has a lower end and extends upward and rearward to an upper end that is connected to the other of the latch parts. A support strut of the frame assembly has an upper end that is pivotally coupled to the one latch part at a pivot defining a pivot axis.

Abstract: A foldable stroller frame assembly includes a bottom frame unit, front and rear frame units connected pivotally to the bottom frame unit, and a handle unit pivotable relative to the front and rear frame units. The bottom frame unit includes a generally V-shaped bottom frame member adapted for mounting rotatably a pair of rear wheels thereon, and a wheel mounting frame member connected to the bottom frame member and adapted for mounting rotatably a front wheel thereon.

Abstract: A collapsible stroller has a frame assembly that is reconfigurable between an in-use configuration and a collapsed configuration. The frame assembly has a fold latch on a side of the frame assembly and has two latch parts that are pivotally coupled to one another. A push arm of the frame assembly has a lower end connected to one of the latch parts and is movable with the one latch part relative to the other latch part. The push arm extends upward and rearward to a handle of the stroller. A front leg of the frame assembly has a lower end and extends upward and rearward to an upper end. The front leg is a hollow tube and has a necked-down portion at the upper end received in the other latch part and is movable with the other latch part relative to the one latch part.

Abstract: A collapsible stroller has a frame assembly with a front, a back, and left and right sides when in an in-use configuration. A seat is positioned between the left and right sides. Each of the left and right sides has an elongate bottom part and each bottom part has a front end and a back end. A back wheel is supported for rotation at the back end of each of the bottom parts. Each of the left and right sides has a front leg with a lower end pivotally connected to the front end of the respective bottom part. Each front leg extends upward from the bottom part and rearward toward the back of the frame assembly and terminates at an upper end. Each of the left and right sides also has a push arm pivotally coupled relative to the upper end of the respective front leg. Each push arm extends upward and rearward from the upper end of the respective front leg.

Abstract: A stroller mainly includes an upper rack, a front wheel rack, a rear wheel rack, an arched rib, a connection bar, a bracing bar, a guarding handle, a plurality of rotary joints and a plurality of corresponding bars. It also has a folding means consisting of the rear wheel rack, arched rib, second, third and fourth rotary joints, a direction switch and wheel retraction means consisting of the front wheel rack, arched rib, second, third and fourth rotary joints, a brake means consisting of brake pulling bar assembly, a plurality of brake means and a cable, and a seat assembly consisting of a cross coupling hub, a guarding handle, a seat rack and a first rotary joint. The second rotary joint is slidable on the rear wheel rack. The fourth rotary joint is slidable on the arched rib.

Abstract: A stand-up type wheelchair for handicapped and sick people comprises a chassis (2) supporting an articulated structure (12) which includes a seat, a foot-rest, a chair-back, and two symmetrical lateral articulated systems. Each system includes a first deformable polygon contributing to the support of the seat, a second deformable polygon, contributing to the support of the foot-rest, a chair-back quadrilateral (four-bar linkage) (35) articulated on the first quadrilateral, and a manoeuvring assembly (40), which includes a first lever (41), a second lever (43), and a manoeuvring handle (49). The manoeuvring handle (49) is articulated firstly on the second lever (43) and/or the first lever (41), and secondly on the first quadrilateral by means of a connecting-rod (55) whose first extremity is connected by a pivot to the first quadrilateral and whose second extremity is connected by a pivot (58) to the manoeuvring handle (49).

Abstract: A baby stroller for transporting an infant at speeds faster than normal walking is disclosed. This baby stroller can be folded to make it easier to stow and transport. The folding mechanism, a unique feature of the design is directed toward compactness, ease of use, reliability, and reduction in manufacturing costs.

Abstract: A frame assembly for a double-seat baby stroller is provided. The frame assembly comprises: a first frame including a first main post, plural first bars, plural second bars, plural third bar, a central post and a first folding device pivotally connected to one another; and a second frame including a second main post, plural fourth bars, plural fifth bars, plural sixth bar, the central post and a second folding device pivotally connected to one another. The frame assembly is characterized by further comprising a linking mechanism connecting one of the bars of the first frame and one of the bars of the second frame, wherein when the second main post of the second frame and the central post become close to each other, the one of the bars of the first frame is driven to move via the linking mechanism by the one of the bars of the second frame, so that the first main post of the first frame and the central post become close to each other.

Abstract: An adjustable seat for a baby stroller with one-handed inclination control has a seat, a pair of rotating joints, and a one-handed adjusting mechanism. The pair of rotating joints are rotatively mounted on both sides of the seat and have a pair of connectors for detachably insertion into a pair of hold sockets firmly mounted on two sides of a baby stroller frame. A clutch member is movably received and engaged inside the rotating joint, and operatively associated with the one-handed adjusting mechanism via a flexible element. When a user actuates the clutch member by manipulating the one-handed adjusting mechanism, the rotating joint can rotatively modify its inclination relative to the baby stroller frame, so as to modify the inclination of the seat.

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: The apparatus is a child's stroller that maintains all the wheels on the ground while it is being folded. The rear legs are interconnected with but separated from the armrests and move on circular paths, the centers of which are pivot points on the armrests. Therefore, the tops of the rear legs move around to a height different from the position of the front leg pivot point, and the location of the tops of the rear legs are determined by the position of the attached wheels rather by the pivot point of the front legs. Another linkage lowers the canopy support frame as the stroller is being folded in order to reduce the stroller's overall folded length.

Abstract: A side frame assembly for a wheelchair suspension includes a mainframe, and a front caster frame connected pivotally to both a front end of the mainframe and a front caster. A return spring is disposed between the front caster frame and the mainframe so as to bias the front caster to a predetermined position. A drive wheel assembly includes a drive wheel frame, a drive wheel disposed pivotally on the drive wheel frame, and a driving unit operable to rotate the drive wheel. A linkage is connected pivotally to the mainframe, the front caster frame and the drive wheel frame. A rear caster assembly includes a rear caster frame attached to a rear end of the mainframe, and a rear caster disposed pivotally on the rear caster frame.

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 front wheel assembly for baby strollers includes a positioning member connected to a front frame of the stroller and a connection unit is inserted into the positioning member. A connection piece has two ends respectively inserted into the positioning member and a connection member to which the front wheels are connected. Two pins extend through two inclined guide slots in a button in the insertion of the connection unit and are engaged with an annular groove of the connection piece so as to connect the positioning member and the connection member. When the button is pushed downward, the two pins are guide to separated in opposite directions so that the connection member together with the connection piece can be removed from the positioning member.

Abstract: A baby stroller for transporting an infant at speeds faster than normal walking is disclosed. This baby stroller can be folded to make it easier to stow and transport. The folding mechanism, a unique feature of the design is directed toward compactness, ease of use, reliability, and reduction in manufacturing costs.

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: An infant stroller having a fold latch mechanism to lock the stroller in the unfolded or deployed configuration. The side of the stroller contains a latchkey piece having a pocket-like recess that engages a latchpin on the stroller's front leg. When the latchkey is in the locked position, the front legs are held in place, locking the stroller in the unfolded or deployed configuration. When the latchkey is disengaged from the latchpin on the front leg, the front leg can be rotated to allow the stroller to be folded for storage or transport. The stroller also has a latching mechanism for locking the tray unit in place during normal use. The tray unit becomes unlocked and can be tucked away during the folding process.

Abstract: A stroller including two rear legs, two arms, wherein a first one of the arms is pivotally connected to a first one of the rear legs by a first latch mechanism and a second one of the arms is pivotally connected to a second one of the rear legs by a second latch mechanism, each of the latch mechanisms being adapted to releasably lock an associated one of the arms in a position with respect to an associated one of the rear legs, a handlebar portion having a first end and a second end, wherein the first end of the handlebar portion is pivotally connected to a first one of the arms and the second end of the handlebar portion is pivotally connected to a second one of the arms, and a single release mechanism positioned on the handlebar portion, wherein the single release mechanism is connected to each of the first and second latch mechanisms and is adapted to release the first and second latch mechanisms to allow pivotal movement of the arms relative to the rear legs.

Abstract: Disclosed is a wheelchair, particularly an electric wheelchair, comprising a frame (20), at least one steerable wheel (3), two non-steerable wheels (5) which are connected to the frame (20) at a wheelbase (R), and a seat (10) that is fastened to the frame (20) and is provided with a back rest (8). The inventive wheelchair is characterized by the fact that the wheelbase (R) is adjustable.

Abstract: A collapsible stroller frame capable of being either collapsed or expanded with a rod set, wherein a slide sleeve is located at a front supporter of the stroller frame and a foldable supporter is pivotally connected between the front supporter and a rear supporter. A link rod connects the slide sleeve and the foldable supporter, and is pivotally connected between the front and rear supporter. The foldable supporter includes a front folding tube and a rear folding tube, pivotally connected to each other. A user can operate the foldable supporter to shorten the distance between the front and rear folding tubes, by disengaging the slide sleeve from the frame, thereby facilitating assembly and folding of the stroller.

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 casing (32) included in a baby carriage folding mechanism is mounted on a substantially middle part of the handle of a folding baby carriage. Hinged joints (33) each having a stationary member (34) and a movable member (35) are connected to the opposite ends of the casing (32), and pipes (18) forming the handle are connected to the hinged joints (33), respectively. The pipes (18) are connected to the movable members (35) of the joints (33). Actuating members (38a and 38b) capable of being operated by an operating mechanism included in the casing (32) are connected to the movable members (35) of the hinged joints (33). The actuating members (38a and 38b) turn the movable members (35) relative to the corresponding stationary members (34) for folding and developing the folding baby carriage.

Abstract: A stroller is convertible between an unfolded state and a folded state, and includes a handle frame disposed pivotally on a wheel frame and pivotable between an inclined position and a horizontal position. A brace member interconnects the handle frame and the wheel frame, and is convertible between a supporting state, where the handle frame is disposed at the inclined position and where the stroller is in the unfolded state, and a non-supporting state, where the handle frame is disposed at the horizontal position and is folded on the wheel frame and where the stroller is in the folded state. A retaining unit maintains the stroller in the folded state, and allows for a one-touch operation so as to permit the handle member to be biased by a biasing unit to the inclined position.

Abstract: A stroller includes a stroller body and a basket support mechanism. The stroller body has two front legs, two rear legs, a handle, and a seat support part. The basket support mechanism has a basket support member disposed below the rear legs of the stroller body, and a flexible member disposed between the basket support member and a front upper part of the stroller body.

Abstract: A universal handle comprising a handle body having a U-shaped gripping zone (51), open at its center (52), having two arms (53) connected by a bar (54) offering, all three, a support back for the palm of the hand or the fingers of the user. The handle comprises in addition a control member: which is arranged on the inside of the opening (52) of the gripping zone (51) of the body of the handle and open at its center in such a fashion as to comprise a U-shaped gripping zone corresponding to the gripping zone (51) of the handle and having two arms connected by a bar, all three offering a support zone for the fingers of the user's hand; and that it is adapted for exercising a force on an element to be controlled when the handle (49) is grasped by the user's hand at one or another of the three gripping zones formed by the two arms (53) and the bar (54) of the body of the handle associated with the control element.

Abstract: A stroller is convertible between an unfolded state and a folded state, and includes a wheel frame, a brace member and a handle frame. The handle frame includes two inclined swing rods connected pivotally to the wheel frame, and a handle rod disposed above and connected pivotally to the swing rods. The brace member interconnects the wheel frame and the swing rods so as to prevent rotation of the swing rods relative to the wheel frame. After two sliding sleeves are moved upwardly on the handle rod, the handle rod can be pivoted forwardly relative to the swing rods so as to fold the stroller.

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: A multi-terrain foldable wheelchair preferably comprises a foldable frame configured for carrying a user in a seated position. The frame further comprises a plurality of hinges configured to allow the frame to fold. Further, the multi-terrain wheelchair comprises a pair of front driving wheels that are rotatably mounted on the front portion of the foldable frame and a single rear castor wheel that is rotatably mounted on the rear portion of the foldable frame. Preferably, when the frame is folded, the driving wheels and the castor wheel are aligned in substantially the same plane. In alternative embodiments, the pair of driving wheels each comprise a driving wheel hub, a driving wheel connector, or driver wheel housings coupled to the frame and configured to allow the pair of the driver wheels to spin. Further, in alternative embodiments, the castor wheel comprises a castor wheel hub, a castor wheel connector, or a castor wheel housing coupled to the frame and configured to allow the castor wheel to spin.

Abstract: A stroller having a novel frame geometry that provides a more direct structural tie between the front and the rear wheels. The two rear legs (bottom members) of the frame are disposed at a relatively small angle to the horizontal and remain close to that shallow angle as the stroller is folded, with all four wheels on the ground. The rear leg assembly is pivotally linked to the front leg assembly, so that the front leg assembly collapses onto the rear leg assembly when the stroller is folded. The front legs and the rear legs preferably have a similar profile so that they generally nest when folded. The front legs and the rear legs preferably have oval or oblong cross-sections, which enhances their vertical load strength.