Abstract: In an electric vehicle, a seat on a mobile base can move between a sitting position in which a sitting surface faces the vehicle upper side, and a retracted position in which a seating portion having the sitting surface is retracted from the sitting position to the vehicle front side, a back plate on the mobile base can move between a raised position on the vehicle rear side and the vehicle upper side with respect to the seating portion in the sitting position, and a laid down position on the vehicle front side with respect to the raised position, a cargo bed portion on the mobile base is positioned on the vehicle lower side with respect to the seating portion of the seat in the sitting position and is positioned on the vehicle rear side with respect to the seating portion of the seat in the retracted position.

Abstract: Example implementations relate to a frame to removably attach bags. For example, an apparatus includes a frame, at least one frame wheel connected to the frame, and an extender device attachable to the frame. The extender device includes a platform, at least one platform wheel connected to the platform, and a first extender connector device on the platform to removably attach the platform to the frame and to removably attach the platform to a first bag of a first size. The apparatus also includes a frame connector device on the frame to removably attach the first bag to the frame.

Abstract: A wheeled carrier device such as a baby stroller, golf cart, child carrier, or general carrier or cargo cart, comprising a bottom frame with at least two rear wheels and at least one front wheel, and may include a movably mounted upper carrier frame with a selectively removable, adjustable and/or reversible carrying element which may include child seating, with a unique wheel folding mechanism that interconnects all the wheels, so that simple movement of a wheel folding grasp synchronously moves all the wheels between the operative, rolling position and their stowed fold flat positions parallel with the bottom frame, with the wheel folding mechanism operable independently of collapsing movement of an optional upper carrier frame which also folds flat and parallel with the bottom frame.

Abstract: A baby bath system including a bathing station assembly having a tub including an inner-volume, a plurality of side walls, an open top end, and a base, a shower head, a plurality of height adjustable legs each having a length, a first-end, and a second-end, a dispenser, a hose, and a drain. The plurality of height adjustable legs may be adjusted to allow a user to access the tub at a desired height without back strain. The device provides parents and guardians with a fully adjustable tub making it easier to bathe an infant.

Abstract: A movable stand with casters for installing each of a plurality of separate type control panels that correspond to a plurality of machine tools disposed in parallel and are disposed to be separated from the machine tools, is provide. The stand includes a top plate sections on which the separate type control panel is installed, a plurality of leg sections that support the top plate section, and horizontal sections that are provided to attach the casters to bottom sections of the leg sections and are horizontal to a floor, in which, out of the horizontal sections, a height from the floor of one horizontal section is different from a height from the floor of another horizontal section.

Abstract: Disclosed here is a customizable caddy assembly system including a platform base with top side and a bottom side; and a plurality of detachable wheels adapted to fit into a plurality of slots on the bottom side of the platform base. The top side of the of the platform base is capable of receiving a storage base that includes a frame, a partition dividing the frame into first and second compartments where each of the first and second compartments includes a cavity formed therein with at least an open top and the partition wall includes an upper portion extending above the level of the frame to form a handle.

Abstract: The present invention discloses a flatbed trolley with casters capable of not folding when a handle rotates, which comprises a bearing frame (1), a handle (2), rotary frames (3), wheel carriers (4), and casters (5). The handle (2) is fixed at an upper portion of the bearing frame (1) via a connecting structure. The connecting structure comprises a left joint (14), a right joint (15), a left gear seat (12), a right gear seat (13), and a handle locking mechanism. The handle locking mechanism comprises a cross bar (7), locking blocks (8), connecting bars (9), switches (10), and a spring (11). The cross bar (7) is a hollow tube with an end being supported on the left gear seat (12) and the other end being supported on the right gear seat (13). An end of the cross bar (7) is provided with the locking block (8), wherein the locking block (8) is slidable along an extension direction of the cross bar (7).

Abstract: A collapsible stroller assembly for combining a car seat and a stroller includes a car seat that has a chair portion and a backrest portion. The car seat is selectively positioned in a vehicle. A plurality of rollers is provided and each of the rollers is pivotally coupled to the car seat. Each of the rollers is selectively positioned in a deployed position to roll along a support surface. Each of the rollers is selectively positioned in a stored position. An audio unit is coupled to the car seat to emit audible sound. The audio unit is selectively placed in electrical communication with an extrinsic electronic device to receive an audio signal.

Abstract: An electronic education system includes an electronic device. A chair is provided and a child may sit upon the chair. A tray is removably coupled to the chair. The electronic device is removably coupled to the tray. Thus, the electronic device is accessible to the child. An undercarriage is movably coupled to the chair. The undercarriage is selectively positioned in a deployed position to roll along a support surface. The undercarriage is selectively positioned in retracted position.

Abstract: A laterally collapsible, user-pushed, four-wheeled rollator, stroller or the like has swiveling front wheels for steering, each mounted in a fork with a vertical post, with a toothed pulley fixed thereto, rotatable in a bearing housing fixed at the front end of right and left side frames. The two swiveling front wheels can swivel to any steering angle but always in unison with each other by virtue of a flexible toothed synchronous belt extending between the toothed pulleys. The interior of each bearing housing closely surrounds each toothed pulley and the belt, preventing any disengagement of the belt from either toothed pulley even when the belt becomes slack when the left and right side frames are folded towards each other. A synchronous chain with sprockets can also be used. Tether means pull the belt/chain rearwardly to a protected position during folding.

Abstract: A front wheel folding structure of a three-wheeled cart, including: a pipe sleeve of a front wheel rack, a rotational joint, a first joint base, a second joint base, and a locking mechanism. The first joint base and the second joint base are symmetrically disposed at two sides of the rotational joint. The locking mechanism is configured to lock the rotational joint. The rotational joint is coupled to the first joint base and the second joint base. The rotational joint includes a front part and a rear part, and the front part is adapted to rotate in relative to the rear part. The front part of the rotational joint is connected to the pipe sleeve of the front wheel rack and is sleeved with a first gear, and a second gear is disposed in the inner side of the first joint base and is engaged with the first gear.

Abstract: A retractable golf bag wheel assembly extends and retracts relative to a golf bag to facilitate movement of the golf bag when desired. The assembly includes a lip coupled to and extending downwardly from a bottom face of a golf bag defining a recess. Each of a pair of arms is adjustable between a storage position within the recess and an extended position wherein the arms extend outwardly from the recess. Each of a pair of wheels is coupled to an associated one of the arms. A catch extends from the lip and engages the arms in the storage position. A catch release has a first end positioned proximate a top of the golf bag and a second end operationally coupled to the catch such that manipulation of the first end of the catch release disengages the catch from the arms wherein the arms extend into the extended position.

Abstract: An infant stroller apparatus includes a first and a second leg segment, a handle segment and a backrest frame. The first and second leg segments are respectively affixed with a first and a second coupling member that are connected with each other. The handle segment is affixed with a third coupling member that is connected with the first coupling member. The backrest frame is connected with the second leg segment. A latch assembled with the second coupling member is movable to engage with the third coupling member to lock the handle segment and the first and second leg segments in an unfolded state. A release actuator operatively connected with the latch is pivotally connected with the second leg segment adjacent to the pivot axis of the backrest frame. The release actuator is rotatable to cause the latch to disengage from the third coupling member for allowing folding of the infant stroller apparatus.

Abstract: A juvenile stroller includes a frame, wheels coupled to the frame, and a seat coupled to the frame. The stroller also includes push handles coupled to the frame. The stroller is collapsible to assume a compact storage shape.

Abstract: A foldable platform truck includes a platform, two wheel-connecting bars rotatably attached to the platform, a handle assembly, a handle release and locking mechanism for controlling the handle assembly, a pair of first gear members and a pair of second gear members. The handle release and locking mechanism has an actuator to be operated to allow the handle assembly to pivot between an upright position and a horizontal position. When the handle assembly is in the horizontal position, the wheels are folded up underneath the platform and lie horizontally with respect thereto. And, when the handle assembly is pulled away from the platform to the upright position, the first gear members engage and turn the second gear members, resulting in the wheel-connecting bars rotating to fold out the wheels from underneath the platform toward an eventual perpendicular position with respect to the underside of the platform.

Abstract: A foldable valet cart is described. In one example, the valet cart includes a base frame, plurality of wheels coupled to the base frame, a lower vertical support frame pivotally connected to the base frame to fold against the base frame, an upper vertical support frame pivotally connected to the lower vertical support frame opposite the base frame to fold against the lower vertical support frame, and a hanger rod pivotally connected to the upper vertical support frame opposite the lower vertical support frame to fold against the upper vertical support frame.

Abstract: A foldable platform truck includes a platform, two wheel-connecting bars rotatably attached to the platform, a handle assembly, a handle release and locking mechanism for controlling the handle assembly, a pair of first gear members and a pair of second gear members. The handle release and locking mechanism has an actuator to be operated to allow the handle assembly to pivot between an upright position and a horizontal position. When the handle assembly is in the horizontal position, the wheels are folded up underneath the platform and lie horizontally with respect thereto. And, when the handle assembly is pulled away from the platform to the upright position, the first gear members engage and turn the second gear members, resulting in the wheel-connecting bars rotating to fold out the wheels from underneath the platform toward an eventual perpendicular position with respect to the underside of the platform.

Abstract: A wheel frame assembly capable of being folded and expansion rapidly for carrying out and storage easily and conveniently. A wheel frame assembly comprises a retainer frame having two parallel retaining rods; at least two rotary units; each rotary unit being formed by assembling a sleeve with a wheel; an active frame have two parallel active rods; each active rod being penetrated by a guide shaft; a telescopic rod having an inner rod and an outer rod engaged to inner rod; the telescopic rod being connected to a latch for controlling the telescopic movement of the inner rod; the actuation of the latch being performed by a handle. Another, a pin assembly can be used to replaced the telescopic rod. The pin assembly includes a rod unit engaged to the rotary unit and a wire for controlling the rod unit to separate from the rotary unit.

Abstract: The present invention is directed toward a collapsible cart adapted for use in recreational areas. The cart includes a body, a support platform, and a first wheel assembly and a second wheel assembly. Each wheel assembly includes a frame and a wheel adapted to slide along the frame. The frame includes a pivot point that reorients wheels from a stowed position to a deployed position. The cart may further include removable fences, as well as a foldable backstop. In use, the cart may be folded from a deployed position, in which it rolls along a surface to transport items, to a stowed position, in which it is collapsed in a compact geometry for storage. The cart may further be integrated into a chair such that the platform provides a seat and a seat back.

Abstract: The invention relates to a so-called three-wheel stroller frame (2) in which the front wheel (20) and the two rear wheels (22D, 22G) are respectively and simultaneously movable relative to a front arm (12) and to two rear arms (14D, 14G) rigidly connected to each other, between an extended service position, in which the rotation axes (Y20-Y20, Y22D-Y22D, Y22G-Y22G) of the wheels extend perpendicularly to a same antero-posterior plane (P) of the frame, and a stowed storage position in which said rotation axes extend in parallel to said plane, the antero-posterior distance (?) between the rear wheels and the front wheel being then smaller than when the wheels are in the expanded position. In order to move the wheels in a quick, simple and easy manner, the stroller frame also includes a specific handle (60) for manually driving a wheel movement means arranged at the front end of the front arm.

Abstract: A foldable wheeled vehicle for individuals includes a main body, front and rear wheels joined on the body, and an anti-tip wheel joined on a rear end of the main vehicle body; the rear wheels will be in an immobilized state when the vehicle isn't in-use; the anti-tilting wheel will move to be below the rear wheels automatically when the vehicle is folded; thus, the vehicle in the folded position can be dragged with the front wheels and the anti-tip wheel contacting the ground; secondly, the anti-tip wheel will be in a higher position than the rear wheels when the vehicle is in an expanded in-use position; thus, when the vehicle is moving along a slope and tilting rearwards, the anti-tip wheel will contact the ground to prevent the vehicle from tilting rearwards excessively to overturn.

Abstract: An auxiliary seat (1) attachable to a pushchair (2) to enable it to accommodate two children seated side-by-side. The seat comprises a frame (10) having a backrest (22) and a base (21) and a wheel (30) in contact with the ground in an operative position. A child seated on the base is supported with their back against the backrest (22). The frame (10) is configured so that the backrest (22) and the base (21) fold substantially flat when the auxiliary seat is not in use. The auxiliary seat (1), including the base (21) and backrest (22), can pivot relative to the pushchair (2) to be folded against the side thereof in a storage position with the wheel (30) off the ground, once the base (21) and the backrest (22) of the seat have been folded substantially flat.

Abstract: The present invention is directed to a wheeled luggage item with an ergonomic telescopic handle assembly. The ergonomic telescoping handle assembly of the present invention allows a user to use the luggage using just one hand. Furthermore, the ergonomic telescoping handle assembly shifts the weight of the bag onto the bag, rather than the user's arm, reducing strain on the user's arm, and it provides for a greater space between the user's heel and the bag, reducing the chance that the user will kick the bag while walking. Finally, the ergonomic telescoping handle assembly of the present invention is stored compactly within the luggage, maximizing the volume available within the luggage for storage of personal items.

Abstract: A portable worktable has a frame, top, legs, and latches. The frame has rails, a plate perpendicular to the rails, and supports beneath the rails for wheels. The top mounts upon runners hinged to the front and rear upper legs at the corners of the worktable. The worktable secures the top and the front upper legs perpendicular with a hinge assembly. The top holds cargo upon hooks. The front lower legs have casters while the rear lower legs end near the wheels. The hinge assemblies secure the upper and lower legs individually but have hinges for folding the legs towards the center of each rail.

Abstract: Cart with a flat cargo platform (1), adapted to travel in the horizontal direction via foldable wheels (2, 2′) mounted respectively via one wheel fork (3, 3′), and with a vertically pivotable pole handle (11) which is connected to the bottom side (12) of the cargo platform (1) via a horizontally pivotable swivel mount (9). Each wheel fork (3, 3′) is mounted on the cargo platform (1) pivotable about an axle (4, 4′) parallel to cargo platform (1) and securable in an operating position projecting perpendicular to the bottom side (12) of the cargo platform (1) and at least one folded position parallel to the cargo platform (1). The pole handle (11) is linked to the swivel mount (9) in such a manner that it can be folded into a folded position parallel to the bottom side (12) of the cargo platform (1). The handle (11) can be secured in the folded in position.

Abstract: Wheeled personal mobility vehicles with extremely thin stowed profiles are provided, which in one embodiment, include a plurality of movable, collapsible wheel axle assemblies which are supported on a support frame and movable between an operative state where the wheels provide rolling support, and a collapsed state where the wheels are moved into the side elevational profile of the device. The embodiment provides for both integrated propulsion and steering linkage to the wheels when they are manually moved into their operative position, along with a collapsible steering mechanism, a support base and at least one collapsible seat. This embodiment may also provide for pedal power, battery, fuel cell or motive power as well as remote control operation.

Abstract: A grasping device for a case standing on rollers or the like is attached to a frontal surface of a case. In order to design the grasping device in such a way that the case is easy to transport and it is reliably prevented from tipping even when the direction of travel changes, the grasping device has a rod which can be withdrawn vertically from the front of the case and a handle attached to the free end of the rod.

Abstract: Compact carrier devices with stub walls, including wagons, carts and wheelbarrows, are disclosed, which include fixed, stowable and/or pivoting wheels, as well as stowable handles. In various embodiments, simple manually manipulable methods latch each wheel and handle in stowed flat positions within the overall perimeter and profile of the devices, which effectively allows the devices to fold to an ultra flat profile without any wheel or component being detached. Associated innovations include unique nesting methods, both unique center push/pull handles and U shaped handle designs, unique handle access panels, device couplers, simple methods to fixate or allow device wheels/axles to rotate, as well as snap on accessories which are designed to hold drink containers, fishing rods and implements.

Abstract: A modular cart comprises a load carrying frame and a wheeled carriage supporting the load-carrying frame. The carriage includes a front carriage assembly pivotally coupled to a front of the frame and a rear carriage assembly pivotally coupled to a rear of the frame. The front and the rear carriage assemblies are substantially identical. Each carriage assembly comprises an axle pivotally coupled at a vertical midpoint axis to the load-carrying frame. The axle is pivotal about the vertical midpoint axis and is selectable between a first position pivotally fixed with respect to the load carrying frame and a second position freely pivotal about the axis. A caster wheel assembly is attached to each of the ends of the axle. The caster wheel assembly is pivotal about a vertical end axis and is selectable between a third position pivotally fixed with respect to the axle and a fourth position freely pivotal about the vertical end axis.

Abstract: A trailer is provided that is especially suited for transporting bicycles and has load supporting, suspension, storage, parking, and rolling functions. The trailer has a main frame providing a trailer bed, adapted to support a plurality of bicycles, and a high performance suspension system. The suspension system includes a pair of independent suspension units including trailer wheels mounted by suspension arms on opposite sides of the main frame for elevational movement in earth traversing positions and for pivoting movement between the earth traversing positions disposed outwardly of the sides of the main frame and stowing positions folded under the main frame. The suspension units include heavy duty shock absorbers that cushion the bicycle or other load, maintain the bicycles in level upright positions during earth traversal, and maximize traction of the wheels.

Abstract: A collapsible wheelchair is disclosed. The wheelchair includes a first wheel and a second wheel secured on opposites sides of a central support frame designed to support a seat member. The first wheel and the second wheel define a space within the circumference of each wheel. The central support frame includes a first frame member connected to the first wheel such that the first frame member may selectively move relative to the first wheel and a second frame member connected to the second wheel such that the second frame member selectively moves relative to the second wheel. A connecting member connects the first frame member to the second frame member in a manner permitting the first frame member and the second frame member to be selectively moved toward and away from each other, thereby, permitting the collapse of the wheelchair. The wheelchair further includes at least one guide wheel coupled to the central support frame for supporting the wheelchair.

Abstract: A lightweight, low profile trailer especially suited for transporting bicycles. The trailer includes pivotally interconnected upper load supporting and lower suspension frames which have load supporting, suspension, storage, and parking functions. Bicycle supports and clamps are mounted for and aft on the load supporting frame. The suspension frame is located under the load supporting frame in the earth-traversing mode of the trailer and is pivoted for upward and downward movement. Trailer wheels are mounted on opposite sides of the lower frame for movement between ground-engaging positions disposed outwardly of the sides of the upper frame and stowing positions folded under the lower frame. A shock absorber is interposed the upper and lower frames intermediate the wheels for resiliently cushioning the upper frame and thus bicycles thereon during earth traversal of the trailer.

Abstract: A toy vehicle comprising a body and a chassis on which the body is mounted through connecting members. The chassis has front and rear tires. The chassis is divided on its center axis along a longitudinal direction of the chassis into two parts comprising left and right side portions. A gear is provided on the center axis for coupling the left and right side portions of the chassis to hinge the left and right side portions with each other.

Abstract: A carriage for the support and transport of a juvenile car seat, the carriage including a frame for attachment of the juvenile car seat thereto, the frame including a front cross member defining a front of the frame, a rear cross member defining a rear of the frame, and a pair of elongated side members defining opposing sides of the frame, each of the side members being connected to and extending from the front cross member to the rear cross member, and the pair of side members being spaced from one another by substantially the width of the frame, a handle member extending upward from the rear of the frame, a pair of rotatable wheel bearing shaft members, each of the rotatable wheel bearing shaft members having an elongated longitudinal axis, and one each of the rotatable wheel bearing shaft members extending along one each of the opposing sides of the frame, each of the rotatable wheel bearing shaft members being rotatable about its respective longitudinal axis, at least a pair of wheels attached to each of

Abstract: A combination vehicle seat and stroller for a child is provided with retractable wheel assemblies which forms a substantially flush, smooth bottom surface which will minimize damage to the upholstery of the vehicle. The apparatus is provided with a handle which is retractable when the apparatus is used in a vehicle seat mode, and deployable for use as a stroller. A coupling system is optionally provided for deploying and retracting the wheel assemblies in response to the deployment and retraction of the handle. Forward ones of the wheel assemblies are arranged to pivot so as to provide a steering capability to the stroller, and may be longer than the rear wheel assemblies so as to provide a reclining attitude for the child.

Abstract: A collapsible wheelchair having a pair of opposed side frames connected by scissors cross bars and having a pair of vertical shafts, which terminate in handles connected to the rear end of the side frame. A pair of seat-supporting members telescope into the side frames and move up and down as the side frames are brought together to collapse the wheelchair. To reduce the frictional forces in the telescoping members, rollers are provided on the telescoping members which bear against the vertical shafts and roll up and down as the chair is folded from use to non-use positions and back again.

Abstract: A cart having a load receiving box supported by a rectangular frame inset within the box lower perimeter. End members of the frame swingably carry front and rear axle frames while side members of the frame swingably carry struts which engage the axle ends to retain some in a deployed position. The axle frame and struts are upwardly repositionable adjacent the box ends and sides, subsequent to wheel removal, to collapse the cart for storage or for carrying in a vehicle. A U-shaped handle has lower ends detachably mounted to a box end wall by a pair of sleeve structures.

Abstract: A collapsible support and transport stand is provided to receive a personal watercraft, such as a jet ski, water scooter, or the like from the back of a pick-up truck, for example, and to transport the personal watercraft into the water over typical beach terrain. The stand includes a cradle upon which the personal watercraft is supported and a plurality of telescoping legs which extend to a pair of skids having a plurality of spring biased retractable wheels. The telescoping legs are maintained in their support position transverse to the cradle by several telescoping cross members which extend therebetween. The cross members are adapted for disassembly to permit the legs to pivot to a stowed position underneath the cradle for ease of storage.

Abstract: A child support apparatus for use as a safety car seat, stroller, highchair and crib. The apparatus has telescoping legs with retractable wheels and pivotable handles which may be extended to function as a stroller or retracted and pivoted to become a safety car seat. The apparatus has a restraining tray assembly adapted to receive a safety harness to provide an auxiliary safety feature that may be utilized if the harness is not fastened or accidentally comes loose from its normal male-female mating machanism. The trays associated with the restraining tray assembly are adjustable and rotatable to provide access to the unit's seat or as an extension for the apparatus' side arms when the unit is used as a crib. The retractable wheels are adapted with telescoping legs which may be extended to allow the unit to function as a highchair.

Abstract: A carry cart having auxiliary wheels on the lower portion of its telescoping arms for redistributing the load of the carry cart when going stairs or the like. The auxiliary wheels are each spring-loaded by two-way hinges. The hinges each include an upper left and upper right plate, a lower left and lower right plate, four springs and four rods.

Abstract: This transport hand-cart is used for carrying luggage or similar items and is collapsible into briefcase form. The cart has removeable wheel carriages and handle that fit into recesses in the flat load carrying portion of the cart. The wheel carriages and handle have a series of protrusions that engage slots in the load carrying portion of the cart to facilitate attachment and detachment. In the collapsed form the handle of the cart protrudes from the confines of its recess in the load carrying portion of the cart to provide a handle in the collapsed carrying position.

Abstract: The invention relates to a perambulator. The perambulator wheels are, at each side of the perambulator, in pairs (5, 6) mounted to the undercarriage by means of a pivoting element (7) which is pivotable around one longitudinal axle fixed to the undercarriage. The wheels can be pivoted into the undercarriage, which, with the wheels pivoted in, can be placed into the carriage body (8), whereby the perambulator requires little space when it is out of use.

Abstract: A carriage device providing a base structure having a frame with a pair of parallel tubular members and front and rear cross members extending between and secured therewith to provide a rectangular configuration, and wheel means for movably supporting the base structure having a folded position proximate to the base structure and an extended operative position. Handle means provide for the base structure is movable between a folded position proximate to the base structure and an extended position away from the base structure, and wheel positioning means comprise a pair of elongated rod elements each received and enclosed within a respective one of the tubular members are rotatable for moving the wheel means between their extended and folded positions by the corresponding movement of the handle means. Locking means engage the rod elements of the wheel positioning means for automatically locking the wheel positioning means against movement when the wheel means is either in its extended or folded positions.

Abstract: A child carrier comprised of a seat-mounting frame and a lower wheel frame assembly depending downwardly from the mounting frame, the wheel frame assembly including front and rear wheels supported for downward extension from the wheel frame assembly, and a seat portion disposed on the seat mounting frame. A handle has side frame portions extending from opposite sides of the seat-mounting frame terminating in a hand-engaging, angled end extending rearwardly from the side frames with the handle member pivoted to the seat mounting frame for pivotal movement of the handle about a horizontal axis from a first position in which the handle extends rearwardly from the seat mounting frame when used as a stroller to a position in which the handle is directed downwardly from its pivotal connection to the seat mounting frame such that the angled end thereof is disposed beneath the wheels in order to support the carrier on a car seat when used as a car seat carrier.

Abstract: A transport apparatus having a loading bridge, is movable by hand for transporting loads over stairs. There are two front rollers (3), which are either extendable or variable in their angular position, and two rear rollers (7), which are secured to downwardly extending arms (6). The loading bridge (1) takes up a rearwardly tilted position when the transport apparatus rests with the rollers (3, 7) on a horizontal surface. The spacing between the front and rear rollers (3, 7) and the roller diameters are selected so that, when climbing a stair, the front rollers (3) rest on an upper tread while the rear rollers (7) simultaneously rest on a lower tread. When the apparatus is not in use, it may be folded to take up but a small space by folding the tiltable hand levers (14) inwardly and by tilting the arms (6) upwardly.

Abstract: A hand truck having a platform; a pair of wheel-connecting bars rotatably attaching to the platform; a plurality of wheels connecting to the bars, at least two of the wheels being rotatable thereon; and a handle member pivotally connecting at two points on an end of the platform and circumscribing three sides of the perimeter of the platform when the handle member is in a closed position. A handle release and locking means attaches to the platform and locks the handle member either in an open or in a closed position. The wheels fold up underneath the platform and lie horizontally with respect thereto when the handle member is in the closed position.

Abstract: A stroller which is foldable to a flat rectangular configuration has an occupant seating structure, seat supporting structure, seat supporting members extending downwardly from the seat to ground engaging wheels, and a handle connected to one of the structures for transmitting motive and steering forces. Bearing structure transmits load forces from the seat to the seat supporting members and rotatably supports each seat supporting member for pivotal folding movement so that the wheel supporting structure is foldable to an orientation generally parallel with and closely adjacent the occupant seat. The handle is pivotally foldable about an axis vertically adjacent the seat so that the folded handle is orientated substantially parallel with and closely adjacent the seat.

Abstract: This disclosure pertains to a rectangular sturdy base provided with four general purpose wheels that are fitted to axles which are hingably attached to the base, enabling these wheels to be stored in an unused position adjacent the marginal edges of the base. A rigid tubular handle is pivotably connected to the base permitting it to be stored along the marginal edges of the base when not in use. Four co-planer grille-like sides may be erected, removed, or folded down on the uppermost surface of the base providing, when erected, storage space when the base is acting as a cart. A strap, fabricated from a flexible material, converts the base into a dolly when four additional sturdy swivel wheels are bolted to the underside of the base. A plurality of strap retainers are fixedly secured to the marginal edges of the base, which when used in combination with flexible straps, converts the flat base into a luggage carrier.

Abstract: A collapsible volume frame, when erected, presents in each of two opposite side elevations a side space frame defined by four points which if joined would form a quadrilateral; and presents further space frames in the four other aspects. The side space frames are braced by at least one frame element disposed transversely and articulated to them in a triangulated manner. Releasable means resist collapse of the volume frame. These side and further space frames are foldable so that the volume frame when collapsed forms a bundle.

Abstract: A three-fold three-wheel golf bag cart folding device includes a main shaft, a rear wheel set, a link mechanism, a lower cart frame, a front wheel set and an upper cart frame, and the upper cart frame can be pulled and rear wheels can be driven by the link mechanism to fold or unfold, such that the golf bag cart can be folded into a flat shape by a simple and easy operation to achieve the effects of reducing the storage space and facilitating users to carry and transport the cart.