Abstract: Various carrying mechanisms to transport a storage device, container or unit are shown. The carrying mechanisms actuate between various positions that may interfere with opening a lid of the storage unit. Various configurations of the carrying mechanisms reduce their profile when in use. Also described are multi-segmented carrying mechanisms that provides a beneficial weight distribution while facilitating actuating the carrying mechanism between different positions.

Abstract: A shopping trolley (10) comprising a basket (12) having first and second side walls (22, 23), first and second end walls (20, 21) and a base wall (18). The basket 12 includes first and second front legs (26, 27) and first and second rear legs (28, 29). The first and second front legs (26, 27) are rotatable from an extended position, in which they extend downwardly from adjacent a front of the basket 12, to a collapsed position, in which they are located adjacent outer sides of the first and second side walls (22, 23). The rear legs (28, 29) are rotatable from an extended position, in which they extend downwardly from adjacent a rear of the basket, to a collapsed position, in they are located adjacent and above upper edges of the first and second side walls (22, 23) of the basket (12).

Abstract: A portable payload carrier (e.g., military transit case) comprises a housing for supporting at least one payload therein, and a ground transport assembly coupled to the housing comprising a first transport unit (e.g., cover) in support of a wheel assembly. The wheel assembly can comprise a wheel and at least one wheel support structure configured to support the wheel about the first transport unit. The wheel assembly can be operable between a stowed configuration and a deployed configuration for transporting the portable payload carrier about a ground surface via the wheel by a user. A handle transport assembly can be coupled to an opposing side of the housing, and can include a deployable handle assembly for lifting and moving the portable payload carrier. The wheel and handle assemblies can be collapsible to maintain a form factor of the portable payload carrier when in the stowed configuration.

Abstract: A hand truck includes a frame that is supported by main wheels and a handle having two side members. Two handle brackets are pivotably mounted on opposite sides of the frame. The handle brackets are arranged for rotation in relation to the frame around a handle rotation axis. The handle brackets slidably receive the side members of the handle so that the handle is able to slide between a first retracted position and a second extended position. The handle is also able to rotate with the handle brackets between first and second rotational positions. A lock mechanism that is mechanically associated with the handle brackets and the handle is able to releasably lock the degree of extension of the handle in at least one position between the retracted and extended positions and is able to lock the rotational position of the handle in at least one rotational position.

Abstract: The backpack with retractable handle and wheels comprises an extendable handle, a plurality of wheel mechanisms and a luggage item. The luggage item is modified to further comprise a center channel, a grip aperture, a plurality of wheel cavities, and a plurality of wheel covers. The extendable handle is stored within the center channel. The extendable handle projects through the grip aperture such that the extendable handle may be withdrawn from the center channel. The backpack with retractable handle and wheels is designed such that each of the plurality of wheel mechanisms is stored in a wheel cavity selected from the plurality of wheel cavities. Each of the plurality of wheel mechanisms is mechanically linked to the extendable handle such that when the extendable handle is withdrawn from the center channel each of the plurality of wheels extends out of its corresponding wheel channel.

Abstract: This application discloses folding, compact support structure assemblies for supporting an article or receptacle including a simplified latch and a support assembly case that move together in tandem as an integrated unit in order to effect release of the support structure assemblies from their operative position, facilitating movement of the entire support assembly and shaft to a compact position inside the profile of the supporting article. The support structure shafts may attach skis, sleds, or wheels. A plurality of equipment engaging removable uprights stow horizontally in slots along the inside walls and a service shelf also conveniently stows flat along the underside or top of the article.

Abstract: A folding device for a golf cart includes a main part to which two side wheels, a handle and a front wheel unit are connected. A tubular portion is movably mounted to a front wheel stem and a connection member is connected between the tubular member and a handle stem. Two rods are connected between side wheel stems. An operation member is pivotably connected to the tubular portion and has notches so that the protrusion of the main part is engaged with the notches to control the main part to connect to or to separate from the tubular member. The tubular member is movable on the front wheel stem so as to fold or expand the front wheel unit.

Abstract: A push bike includes a frame, two wheel assemblies and two locking assemblies. The frame includes a curved bottom portion. The two wheel assemblies are pivotally connected with two opposite ends of the frame respectively. Each wheel assembly includes at least one wheel being contactable with the ground, and a limiting portion. Each locking assembly disposed in the frame and includes a limiting member abuttable against the limiting portion. Thus, the two wheel assemblies can be pivoted or locked with respect to the frame to cause the curved bottom portion to contact with the ground for rocking.

Abstract: A jogging stroller frame with a front wheel automatic flattening folding mechanism is provided with a jogging stroller frame which can be folded into a substantially flattened configuration for compact storage by an associating of a linking rod. When the foldable jogging stroller frame is folded into the substantially flattened configuration, the seat support rack shall pull the front wheel set to rotate backward about a horizontal axis to the pair of rear struts through the linking rod, thereby converting the foldable jogging stroller frame into a successively smaller size for more compact storage.

Abstract: A jogging stroller frame with a wheels automatic flattening folding mechanism is disclosed, which includes a foldable frame, a front wheel set, a pair of rear wheel sets and a driving mechanism. The driving mechanism is associated with the foldable frame for pivoting the front and rear wheels about 90 degrees away from the longitudinal direction automatically during the jogging stroller frame is converting into its folded configuration for storage.

Abstract: The present disclosure relates to a folding structure for two-wheeled vehicle, comprising: a front wheel; a rear wheel; a first connection rod connected to the front wheel; a second connection rod connected to the rear wheel; a first rotary shaft for rotating the first connection rod relative to the second connection rod; and a second rotary shaft for rotating the front wheel relative to the first connection rod, wherein a space is formed by means of the rotation of the first connection rod relative to the first rotary shaft and the rotation of the front wheel relative to the second rotary shaft so as to allow the first connection rod and the second connection rod to be placed between the front wheel and the rear wheel.

Abstract: A mobilization device adapted to be attached to a piece of conveying equipment such as a gurney. The device includes a base having a top and a bottom. The base supports an axle housing. An axle is disposed in the axle housing and extends therefrom. Wheel assemblies are disposed on the axle. The device includes a coupling receiver mounted on the top of the base. The coupling receiver includes a receiving element that can hold a support structure of the conveying equipment and hold the wheels of the conveying equipment off of the ground. The wheel assemblies of the device are used to move the conveying equipment and include tires having a relatively larger height and width to aid in increasing the mobility of the conveying equipment.

Abstract: A golf trolley configured with a foldable chassis, a plurality of wheels for engagement with the ground, the wheels being movable between an operative position and a stowed position, and a handle. The trolley incorporates a gear train in connection with the foldable chassis for folding elements of the chassis with respect to one another and for moving the wheels between the operative and stowed positions. The handle is pivotally mounted to the chassis and includes a first gear, the first gear being in meshing engagement with the gear train for controlling the folding of the chassis by movement of the handle.

Abstract: A field litter support (1) includes two side structures (2, 3), each supporting at least one wheel (4) in order to define a frame (40), connecting devices (38a, 38b, 38c, 38d) for attaching a litter (100) to the frame (40), elements (5) adapted to reciprocally move the side structures (2, 3) and a mechanism (6) for blocking the elements (5), and therefore the structures (2, 3), in a predetermined position, attachable to the structures (2, 3). The structures (2, 3) are reciprocally moved close or away along the axis (60) of the wheels (4) without removing the frame (40). This characteristic, however, does not jeopardize the size, because, once the field litter support (1) has been packaged, it has a size equivalent to the one of the closed field litter supports of the prior art.

Abstract: A collapsible shopping cart includes a collapsible support assembly having a support frame with a vertical frame member and a horizontal frame member. The vertical support member is pivotally secured to the horizontal support member allowing the support frame to be selectively folded. A plurality of wheels are coupled to the horizontal support member. The plurality of wheels are coupled to the horizontal support member for movement between a use orientation and a storage orientation, wherein when the plurality of wheels are in the use orientation they extend from the horizontal support member in a manner permitting engagement with a horizontal support surface such that the support assembly may roll thereupon. First and second storage receptacles shaped and dimensioned for selective attachment to the support assembly are provided.

Abstract: A box with deployable wheels. The box includes peripheral walls and side panels defining an enclosed interior compartment for receiving an object. At least one deployable wheel assembly is disposed along the bottom peripheral wall. The deployable wheel assembly includes a wheeled base assembly pivotably moveable through an opening in the bottom peripheral wall from a storage position within the interior compartment to a deployed position exterior of the bottom wall. When the wheeled base assembly is in the deployed position, the box is capable of being rolled on the wheeled base assembly.

Abstract: A collapsible cart-trailer includes a folding mechanism that folds the cart-trailer into a small form factor, at least two wheels, modular, and removable and compartmentalized storage. The collapsible cart-trailer is operable in a cart mode and a trailer mode. In the trailer mode, the cart-trailer may be coupled to a movable object by a collapsible, length adjustable tow bar. In the cart mode, the cart-trailer includes a collapsible handle.

Abstract: A device comprising a planar element with a first wheel supported about a first rotary axis, a handle support, and a folding joint connecting the handle support to the planar element pivotal about a first pivotal axis such that in an operating state the handle support is aligned to a planar element at an angle, is provided. At least one second wheel is supported about a second rotary axis, at the distal end of the planar element. The second wheel is pivotal about a second pivotal axis and coupled to the handle support via a mechanism which converts a pivotal motion of the handle support about the first pivotal axis into a pivotal axis of the second wheel about the second pivotal axis such that the second rotary motion of the second wheel shows in the idle state a greater angle to the planar element than in the operating state.

Abstract: The invention is a new design of luggage/cart system, which you can push or pull. It is in a horizontal position consisting of three or more wheels. The handle is a unique design to extend out and up at any angle. Wheel deployment and retraction is controlled by handle extension and insertion respectively.

Abstract: The present invention provides a stroller frame adapted for a stroller and the stroller with the stroller frame. The stroller frame includes a handle, a front foot pivoted to the handle, a bottom pipe pivoted to the front foot, and a linking mechanism pivoted with the handle, the front foot and the bottom pipe. Thus, the present invention provides the stroller frame and the stroller therewith capable of being folded easily and with simple structure.

Abstract: A foldable wheeled container having a frame; at least two wheels connected to the frame; a tensioning cable housed within the frame; a plurality of hinge points, wherein when the frame rotates around the hinge point the tensioning cable is aligned; and a locking mechanism which tighten and locks the tensioning cable in its tightened position to form a rigid structure. A stroller having a similar structure including a frame; at least four wheels connected to the frame; a tensioning cable integrally connected to the frame; a plurality of hinge points, wherein when the frame rotates around the hinge point the tensioning cable is aligned; and a locking mechanism which tightens and locks the tensioning cable in its tightened position.

Abstract: A luggage assembly is provided. The assembly includes a luggage component and a support assembly for use with the luggage component. The support assembly includes a support frame configured for extending from the luggage component between a first position and a second position extended from the luggage component and defining a support area therebetween for supporting additional luggage components and a pivotable device carried by the support frame and extending between spaced-apart wheel assemblies of the luggage component and configured for allowing pivotable movement of the luggage component about the support frame.

Abstract: A front wheel folding device for a three-wheel cart including a golf bag cart, a baby cart or a goods transport cart includes: a fixed base with an upper end coupled to a cart frame and having an elastic press plate and a plurality of teeth; a moving base coupled to the fixed base by a rod and having a gear disk engaged with the teeth of the fixed base for performing a reciprocal rotating movement; and a front wheel set mounted to the moving base and having a front wheel. By pressing the press plate, the moving base is released to perform a rotating movement to drive the front wheel to be disposed at a horizontal state and folded. The aligning and folding processes can be completed all at the same time to achieve a convenient and quick operation.

Abstract: A mobile treatment table having a central support operably connected with a wheel assembly. A support member is pivotally connected with the central support and operable between a vertical position and a horizontal position. At least one support leg is disposed at a distal end of the support member and operable between a deployed position substantially orthogonal to the support member and a non-deployed position substantially parallel with the support member. A handle extends from a proximal end of the support member and forms a portion of the support member when the support member is in the horizontal position.

Abstract: A mobile treatment table including a central support. A first support member is pivotally connected with the central support and operable between a substantially vertical position and a substantially horizontal position. A second support member is pivotally connected with the central support and includes a handle integral therewith. The second support member is operable between a substantially vertical position and a substantially horizontal position. A wheel assembly is operably connected with the second support member and operable between an extended position adjacent a first side of the support member and a retracted position adjacent a second side of the support member.

Abstract: A golf bag cart includes a body for engaging a golf bag. The body has a first longitudinal end and an opposite second longitudinal end. A first pair of wheels is rotatable about a first axis of rotation at or adjacent the second longitudinal end, a second pair of wheels rotatable about a second axis of rotation which is pivotable relative to the body between a folded position and an outstretched position. When the second axis of rotation is in the outstretched position, the first and second wheel pairs support the body in a slanted orientation. When the second axis of rotation is in the folded position, the first and second wheel pairs support the body in a generally horizontal orientation. When the second axis of rotation moves from the outstretched position to the folded position, the second axis of rotation moves away from the first axis of rotation.

Abstract: The collapsible shopping cart device provides a shopping cart with pivoting telescopic legs. Two spaced apart front legs mount to a pair of spaced apart leg pivots proximal to the basket bottom front. The pivoted legs provide for total collapse to the basket bottom or extension to positions that allow the basket to be selectively varied in height above a given surface such as a store floor. The basket may be provided with hinges between the basket sides and front and back and the basket bottom such that sides, front, and back may collapse for even greater collapsibility for either transport or storage. The sides, front and back are selectively locked in place when expanded. The seat bottom and back may be removable. The handle may be removable. The entire basket and its upwardly disposed components may therefore provide extreme compactability.

Abstract: A steering device for decreasing a turning radius of a pallet jack is disclosed. The steering device comprises a first portion fixedly connected to the pallet jack between a main wheel and the extensible roller thereof. A second portion pivotally attaches to the first portion. A spring disposed within the first portion urges the second portion to remain in a selected position. A wheel disposes within the second portion. Positioning the pallet jack towards the lowered position, the wheel engages the ground causing the extensible roller to disengage the ground whereupon the main wheel and the wheel define a second turning radius which is lesser than the first turning radius. Upon the wheel contacting a lower cross member of a pallet, the second portion is urged against the biasing force of the spring to pivot relatively upwards and over the lower cross member.

Abstract: A shopping cart has a basket having left and right sides, a floor, a rear wall and a front wall and has a handlebar. Squeezing the handlebar and moving it down causes a front wheel assembly to rotate from a down position in which the front wheels contact the ground toward a storage position in which the front wheels are positioned adjacent or above the floor. A rear wheel assembly is rotatable from a down position in which the rear wheels contact the ground to a storage position in which the rear wheels are positioned at or behind the rear wall. After positioning the loaded shopping cart adjacent a trunk vehicle, slide the cart and rotate the front and rear wheel assemblies, which may be lockable, to get the cart into the trunk for storage during transportation home. Reverse the process once home. The cart basket collapses into two dimensions for closet storage.

Abstract: In a working machine, a towing handle is mounted on a top section of a machine body in such a manner that the handle is pivotable between a stored position and a deployed position, and the machine body is towable with the handle in the deployed position. The handle in the stored position extends along outer peripheral portions of the top section and a predetermined wall section of the machine, and the wall section has an upper end region that extends in a machine-towing direction to connect to the top section and has to-be-protected member provided thereon. The handle in the stored position projects outwardly beyond the top section and the wall section.

Abstract: This application discloses a number of fold flat, collapsible, stowable wheel assemblies for wheeled carriers including but not limited to strollers, jogging strollers, flat carts, dollies, trolleys, wagons and carts. The application discloses novel methods to selectively fixate the wheel/tire position, to stow and fold flat, fixed, swivel and caster wheels so that the wheels/tires fold flat and generally parallel with the floor/base/frame of the device providing for a thin stowed profile. Also, one innovation provides for a flat cart and all wheels fold flat to the underside and side elevational profile of the carrier device. Other innovations relate to methods to manufacture and provide for fold flat caster or swivel wheels. One embodiment provides for a baby jogging stroller forward wheel/tire that is a selectively fixed, or becomes a swivel wheel, which quickly and easily may be folded flat along the jogger frame, without removing the wheel.

Abstract: Disclosed are a backpack skateboard system and methods for use thereof in which a skateboard is movably attached to a backpack, so that the skateboard can pivot 180° along the longitudinal axis thereof and rotate 90° into a folded configuration in which the skateboard is substantially parallel to the backpack with rear wheels of the skateboard facing the backpack and pivot 180° along the longitudinal axis thereof and to rotate 90° into an unfolded configuration in which the skateboard is substantially perpendicular to the backpack with the rear wheel assembly positioned downward.

Abstract: The present invention includes a cart which includes: a chassis connected to a plurality of wheels; a basket mounted on the chassis and adapted to store one or more items therein; and a bridge element which is formed as an integral part of the cart and is adapted to fit onto an edge of a vehicular trunk, wherein the bridge element of the cart is at an area of the cart located between the basket and the wheels.

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: A golf bag cart front wheel foldable device includes a fixed mount, a movable mount and a front wheel frame. The fixed mount has one end connected to the bottom tube of the cart frame and the other end provided with a fitted end. The fitted end is in pinned connection with a buckle at its one side. The movable mount is capable of being seized by the buckle and is joined fixedly to the fixed mount by a hinge. The movable mount has one end provided with a fitted end which is physically in harmony with the fixed mount. The front wheel frame has a top end connected fixedly to the movable mount, while its bottom end is joined to the front wheel. Through loosening of the buckle, the movable mount is not seized, which enables the movable mount and the front wheel frame to rotate with respect to the hinge, and the front wheel is then leveled for folding purposes, to achieve great handiness in maneuvering.

Abstract: A collapsible golf trolley is revealed. A connection assembly that connects an upper frame, a lower frame, and mounts on two sides includes a locking body locked on a metal rod so as to improve the fastening strength. The connection assembly is further arranged with a guiding wheel corresponding to a guiding slot of a lower frame. This design makes the operation smoother while extending and folding the lower frame. Moreover, a turning member for turning and folding of a front wheel is disposed on a front end of the lower frame. According to the above structure, easy spreading and collapsing and firm connection of the golf trolley are achieved.

Abstract: A golf cart collapsible device includes a frame folding articulation mounted between an upper frame and a lower frame for folding the upper frame, a frame collapsing articulation mounted on the lower frame for folding the lower frame, a rear wheel frame mounted between the frame folding articulation and a rear wheel, a first pull bar mounted between the frame folding articulation and the rear wheel frame for folding the rear wheel, a front wheel folding articulation mounted between the lower frame and a front wheel frame for folding a front wheel, and a second pull bar mounted between the rear wheel frame and the front wheel folding articulation. Thus, the front wheel and the at least one rear wheel are folded simultaneously by linking of the first pull bar and the second pull bar.

Abstract: A collapsible massage stool, durable and sturdy in use is disclosed which that may be efficiently stored during non-use periods in a folded position. The device may be fitted with a removable cover sporting indicia. A kit and method of use are also described herein.

Abstract: A folding table includes two tabletop halves pivotally joined together at an axle, with one or more legs connected to each half. A transport member, such as a wheel is mounted on the axle. To transform the table from an “in-use” condition to a “transport” condition, the legs are collapsed to seat adjacent to the underside of the associated tabletop half. The tabletop halves are then pivoted toward each other until the undersides are in facing relationship to each other. So pivoting the tabletop halves exposes the transport member, which can be positioned against the ground to roll or slide the table to a different location.

Abstract: A hand-propelled or vehicle-towed convertible deer cart incorporates side walls that are locked vertically when collapsed to a first geometry of very small size for storage and transport, and also when readily reconfigured for use as a larger transport cart or trailer. When further reconfigured for use as a hunting stand, the side walls are pivoted from vertical to horizontal and form a part of a larger platform in combination with the cart bed. A pair of ladders may be stored within the cart bed when configured as a transport cart. The ladders are pivoted about their longitudinal axis to convert to the larger transport cart, and then extended to full-length ladders in the hunting stand geometry.

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: A container assembly is provided that includes a base container that has an upper opening and an upper container mounted in covering relation over the upper opening of the base container. A linkage connects the upper container to the base container in a manner that allows the upper container to be displaced from the covering relation over the upper opening of the base container, so as to permit access into the base container through the upper opening. A support assembly is spaced from the base container when the upper container is displaced from the covering relation over the upper opening of the base container and wheels are disposed toward a lower portion of the container assembly. A handle is provided for rollingly transporting the container assembly on the wheels in a tilted configuration.

Abstract: A foldable stroller includes a rear composite supporting member interposed between and pivoted to two rear supporting rod parts of a frame; the rear composite supporting member can be expanded to hold the stroller in an in-use position, and it can be compressed so as to reduce the width of the stroller when the stroller is not-in-use; the stroller further includes a composite fixing member, which will fix the rear composite supporting member automatically when the rear composite supporting member is moved to the expanded position; the stroller frame has two front supporting rod parts, which each include an upper rod, and a lower rod pivoted to the upper rod; the stroller can be reduced in its height by making the lower rods of the front supporting rod parts become close to the upper rods.

Abstract: A foldable wheeled container having a frame; at least two wheels connected to the frame; a tensioning cable housed within the frame; a plurality of hinge points, wherein when the frame rotates around the hinge point the tensioning cable is aligned; and a locking mechanism which tighten and locks the tensioning cable in its tightened position to form a rigid structure. A stroller having a similar structure including a frame; at least four wheels connected to the frame; a tensioning cable integrally connected to the frame; a plurality of hinge points, wherein when the frame rotates around the hinge point the tensioning cable is aligned; and a locking mechanism which tightens and locks the tensioning cable in its tightened position.

Abstract: A stroller frame has a front, a back, and a ready for use configuration. The stroller frame includes a spine having a forward end, a rear end, an underside, and a top side. The spine is positioned generally along a center lengthwise axis of the stroller frame with the forward end coinciding with the front of the stroller frame and the rear end elevated above the forward end and coinciding with the back of the stroller frame. A pair of rear legs each has a proximal end coupled to the spine and a distal end located below, laterally outward, and rearward of the respective proximal end. The proximal ends are laterally spaced apart from one another. A pair of support arms each has a proximal end coupled to the spine. Each support arm has a distal end portion located above, laterally outward, and forward of the respective proximal end. A seat is frame coupled to the stroller frame and positioned on the top side of the spine. The stroller can be collapsible in three dimensions.

Abstract: A pivot mechanism includes a base member configured to be coupled to a first element and a generally cylindrical rotating member configured to be coupled to a second element. An elongate pin extends through the base member and rotating member and defines a pivot axis. The rotating member is capable of rotating relative to the base member about the pivot axis. The elongate pin is movable in a direction generally parallel to the pivot axis between a secured position and a release position. In the secured position, the rotating member is prevented from rotating relative to the base member, and in the release position, the rotating member is permitted to rotate relative to the base member. The pivot mechanism may be incorporated into a scooter or a tricycle to provide different configurations thereof.

Abstract: A golf bag cart foldable device includes a bottom cart stand having a link segment at its top, where both sides of the link segment each is in pinned connection with a rear wheel frame, which has its bottom end join the rear wheel, and the bottom cart stand is provided with a slider at the bottom of the link segment. An upper cart stand is in pinned connection with the link segment at its bottom, and has a bracket at its top, where the bracket couples to a mount at its one end. A handle bar is joined the mount at its bottom at which an angle adjustable joint is located, and has a score board at its top. A linkage set comprises a first linkage being set up between the upper cart stand and the slider, a second linkage being set up between the slider and the rear wheel frame, and a third linkage being set up between the mount and the first linkage.

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

Abstract: A container assembly is provided that includes a base container that has an upper opening and an upper container mounted in covering relation over the upper opening of the base container. A linkage connects the upper container to the base container in a manner that allows the upper container to be displaced from the covering relation over the upper opening of the base container, so as to permit access into the base container through the upper opening. A support assembly is spaced from the base container when the upper container is displaced from the covering relation over the upper opening of the base container and wheels are disposed toward a lower portion of the container assembly. A handle is provided for rollingly transporting the container assembly on the wheels in a tilted configuration.

Abstract: A flat platform cart with collapsible casters which is stable in positioning and convenient in collapsing and use. It comprises a supporting section, a push-pull section and a caster section connected thereto by a linkage means, and an extension positioning means which enables the push-pull section and the caster section to be maintained in an extending state; the extension positioning means comprises a vertical positioning means which simultaneously locks the push-pull section and the caster section in position and a horizontal positioning means disposed between the load supporting platform and the supporting bases which horizontally locks the push-pull section in position. When the flat platform cart is extended, horizontal and vertical positioning are simultaneously being carried out, therefore the positioning is very stable and it is convenient for use.