Abstract: An improved multi-wheeled vehicle having adjustable wheelbase dimensions. The preferred embodiment is a wheelchair which is adjustable as to length and width "on-the-fly." Contracting the two side frames effects a simultaneous retraction of the forward wheel struts. Thus, the length of the wheelchair is reduced at the same time the width is reduced, and vice versa. The linkage between the two side frames is preferably two cross members in an X configuration, one end of each cross member being pivotally affixed to one side frame on one side of the wheelchair, with the respective other end of each cross member being pivotally affixed to a wheel strut on the opposite side of the chair, the two wheel struts each being slidably attached to respective side frame.

Abstract: A collapsible wheelchair (10) with two lateral supports (12, 13) on which respectively a drive wheel (18, 19) and respectively a running wheel (20, 21) are fastened and which are rigidly connected by a main transverse support (34) and an auxiliary transverse support (32). The former is constituted by two legs (38, 39) connected a hinge joint, which can be arrested on each other by an arresting device. The latter has an arresting protrusion (56) hinged on one leg (38). The arresting protrusion runs up on the stop face (62) respectively located opposite it, which is a section of a stop area (64) formed on the other leg (39). At least one of the legs (38, 39) can be advanced in the direction toward the longitudinal center surface of the collapsible wheelchair (10) by an advancement device.

Abstract: A stroller includes a pair of handles and a pair of rods slidable relative to each other. A pair of casings are secured on top of the rods for slidably receiving the handles. A pair of posts each has an upper end pivotally coupled to the casing. A retainer is secured in one of the casings and has two hooks. A latch is pivotally secured in the casing for engaging with the handle and for locking the handle and the casing and includes a catch for engaging with the hooks and for allowing the handles to be moved relative to the rods. A pair of sleeves and a pair of brackets are slidably engaged on the posts respectively. A further pair of latches are pivotally coupled to the brackets for engaging with the sleeves and for securing the brackets to the sleeves and for preventing the posts from rotating toward the rods.

Abstract: A new and improved collapsable, combination chair/walker for aiding elderly and/or disabled people in independent movement includes an upstanding foldable, or collapsable frame including a front rail, a pair of opposite side rails and a back, and the frame supports a removable seat at an intermediate level for a person to sit within the frame. An open space is provided forwardly of the seat for accomodating the legs of an occupant in both a standing/walking position and/or a seated position. The open space is defined between the front rail and a forward edge of the seat and a flexible detachable safety strap extends into the open space between the seat and front rail for preventing an occupant from sliding out of the seat onto the floor or falling to the floor from a walking or standing position. Rollers or casters are provided for easy movement of the chair/walker and brakes are provided on at least some of the rollers to immobilize the chair/walker when desired.

Abstract: An improved foldable bicycle trailer including a foldable frame. A pair of wheels are permanently mounted in a rotatable manner to the foldable frame. The foldable frame with the wheels can fold up for storage.

Abstract: A collapsing cart for wheeled transport of diverse items over the ground surface. The cart includes a pair of side members having handlebars for grasping by a user and a number of ground-engaging wheels for movement. A number of lateral struts join the side members together. A flexible article carrier is suspended from two of the lateral struts. In the event that the cart is to be used on unconsolidated or uneven surfaces, an auxiliary carriage having load-distributing rollers may be secured beneath the wheels.

Abstract: A flat seat plate providing an upper surface which is in contact with a principal region of the lower surface of a seat portion for supporting the seat portion from below is integrated into a part of the body of a baby carriage. The seat plate is divided into three plate-type members, and adjacent ones of the plate-type members are hinged with each other on the respective lower surface sides thereof by flexible sheets. End surfaces of the plate-type members are butted against each other when the seat plate defines a uniform plane.

Abstract: A foldable frame for a baby carriage which includes a flexible handrail and a pair of two-way toggle joints for connecting opposite ends of the handrail to a pair of spaced arms, each two-way toggle joint having a butt joint fixedly connected to a respective end of the handrail and a joint stand pivotally connected to a respective arm. The butt joint is pivotally connected to the joint stand by means of a pivot member. A latch member is pivotally mounted between lips of the joint stand. The latch member is biased by a spring into engagement with the pivot member. A groove formed within a forward end of the arm receives a portion of the latch member when the handrail in a fully extended position for preventing pivotal movement of the joint stand relative to the arm.

Abstract: A stroller includes a pair of side frames, each including a main side tube comprised of upper and lower tube portions pivotally mounted to each other, a rear side tube pivotally connected to the upper tube portion, and a support rod pivotally connected to the rear side tube and to the lower tube portion; a rear articulated spreader bar mechanism for connecting together the rear side tubes of the pair of side frames, the rear articulated spreader bar mechanism including a pair of rear pivoting spreader bars, each pivotally connected at one end thereof to a respective rear side tube and at an opposite end thereof to the other rear pivoting spreader bar; a front articulated spreader bar mechanism for connecting together the lower tube portions of the pair of side frames, the front articulated spreader bar mechanism including a pair of front pivoting spreader bars, each pivotally connected at one end thereof to a respective lower tube portion and at an opposite end thereof to the other front pivoting spreader bar

Abstract: A transporter vehicle comprises two lifting devices which carry respective jacks and which can be joined at their ends by cross bars to form a rectangular dolly with a central opening therein. The lifting devices each have front and rear wheels so that the dolly can be rolled on floor surfaces. In practice, the two are placed on opposite sides of a load seated on a floor in the opening between those devices, the jacks are placed under the load, the cross bars are assembled with the side frames, the load is jacked up on its opposite sides to be above the floor and the load may then be transported.

Abstract: A folding, portable golf cart that includes a folding frame assembly, a steering arm operatively connected to the frame assembly which can be rotated open to create a fully functioning golf cart, and a simple system of supports and linkages that connects and strengthens the main frame assembly and allows the folding, portable golf cart to be folded into a compact and portable condition. The folding, portable golf cart further includes a pair of removable side wheels and a front wheel that is fixed to the forward portion of the frame assembly, enabling the folding, portable golf cart to easily be pushed by a user while transporting a golf bag, golf clubs and associated equipment from location to location. The folding, portable golf cart includes a seat assembly for supporting the user when the cart is in the folded open position but is not being moved.

Abstract: A wheelchair is made up of a pair of parallel main frames connected to each other on the rear side via a detachable back supporter and on the front side via footplates foldable along a center hinge extending in the longitudinal direction. Large wheels and a seat plate are detachably coupled to the main frames. The seat plate is changeable in level by leverage operation. After detachment of the large wheels, and unlocking of the back supporter, the wheelchair can approach very close to a user lying on a bed. When the large wheels are detached, the wheelchair can go through doors of ordinary sizes. By folding the foot plates together, the main frames can be put together side by side for convenience in transportation.

Abstract: A low-cost wheelchair that is formed from side members made from continuous, bent single pieces of tubing that is formed to create a loop, and crimped at the juncture where the loop is formed. An axle is mounted at the juncture of each loop, and a large rear wheel is mounted on each axle.

Abstract: A wheelchair having a set of features which facilitate transfering a patient to an alternative surface and raising the chair to an alternative seating height. The first of these features enables each of the handwheels to be independently pivoted rearward by raising its related arm rest. The motion of the wheel is over centering and its rearward position is determined by a brake pad which engages its respective handwheel. The rearward position of the handwheel is such as to clear the rear of the seat. The forward position is determined with the arm rest in the normal down position and latched to the frame. The second feature is a lifting mechanism for raising the patient to the level of an alternative surface such as a bed. The third feature has the seat surface fabricated from a moveable belt which laterally transports the patient to the alternative surface. The wheelchair also has an embodiment which allows folding for easy transport.

Abstract: A golf cart has a supporting frame formed of articulated struts that can be folded during use and can be unfolded to form storage elements for the golf cart.

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

Abstract: A transportable golf bag is disclosed which comprises a pair of deployable wheel assemblies attached to the lower portion of a semi-rigid golf bag. The bag forms the structure of the device without requiring a separate frame or chassis. The wheel assemblies can be locked in a deployed or stored position. The stowed wheels are covered by a closable pocket. A deployable handle for pulling the bag, and a deployable leg for supporting the bag in an upright position can be stowed when not in use.

Abstract: An angle-adjustable folding frame assembly for a golf cart, which includes a handle having a handle connector at one end pivoted to the handle bracket and wheel bracket on the main frame of a golf cart, a first locating member made to slide on the handle and having a positioning rod, a slide block connected to the first locating member and moved to slide on the handle connector, a spring stopped between the handle connector and the first locating member, and a second locating member affixed to the front end of the main frame and having two spaced retaining grooves for alternatively receiving the positioning rod of the first locating member in holding the handle in a first or second working position.

Abstract: A foldable two-wheeled golf pull cart for use in conjunction with a conventional golf bag or which may be formed integral with a specially-designed golf bag. The pull cart of the invention is constructed so that its wheels may be collapsed individually and sequentially to a stowed position directly under the bottom of the golf bag one over the other and parallel to the bottom of the golf bag in coaxial relationship with the longitudinal axis of the golf bag. Each wheel is connected by a strut to a hinge on the frame of the golf pull cart and each wheel may be swung easily to its deployed position by a 180 degree rotation about a corresponding single axis.

Abstract: A mobile vehicle having a substantially hexagonally-shaped frame member that is movable between a collapsed position to enable the vehicle to enter a vessel opening or an area having constrained access points and a more stable expanded position. Drive apparatuses are attached to the frame member for driving the vehicle on a surface. The vehicle is also equipped with a tether line that is used to supply control power to the vehicle drives and to deploy and retrieve the vehicle. Various collapsible tool members are operably attached to the vehicle for performing various tasks within an enclosed environment.

Abstract: A transporter vehicle comprises two lifting devices which carry respective jacks and which can be joined at their ends by cross bars to form a rectangular dolly with a central opening therein. The lifting devices each have front and rear wheels so that the dolly can be rolled on floor surfaces. In practice, the two are placed on opposite sides of a load seated on a floor in the opening between those devices, the jacks are placed under the load, the cross bars are assembled with the side frames, the load is jacked up on its opposite sides to be above the floor and the load may then be transported.

Abstract: A transporter vehicle comprises two lifting devices which carry respective jacks and which can be joined at their ends by cross bars to form a rectangular dolly with a central opening therein. The lifting devices each have front and rear wheels so that the dolly can be rolled on floor surfaces. In practice, the two are placed on opposite sides of a load seated on a floor in the opening between those devices, the jacks are placed under the load, the cross bars are assembled with the side frames, the load is jacked up on its opposite sides to be above the floor and the load may then be transported. The jacks may include linkages which cause the load to be lifted wholly vertically while not undergoing any horizontal translational movement.

Abstract: A collapsible luggage cart comprising an inverted U-shaped handle combined with a horizontal eccentric tube with pivotal discs, a vertical middle support tube and two vertical side support tubes combined pivotally with and under the eccentric tube with both a middle pivotal ring and two side pivotal rings so as to make the handle swingable upward for spreading and downward for collapsing, a luggage frame combined pivotally with the lower ends of the middle and the two side vertical tubes so as to make the luggage frame swingable down for spreading for use or up for collapsing, and two wheels combined with two wheel frames combined pivotally with the two vertical side support tubes so as to make the wheel frames swingable outward for spreading and inward for collapsing.

Abstract: A luggage truck, including a base equipped with wheels in the corners at the bottom thereof and having a track and a slide moved along the track, a pull arm extended upward from the front end of the base, a handle coupled to the pull arm, an extension member connected between the handle and the slide, and two wheel holders pivotally mounted on the base at the bottom and bilaterally engaged with the slide to hold a respective wheel, wherein when the extension member is pulled out of the pull arm after the handle has been released from the pull arm, the slide is pulled forward causing the movable wheel holders to turn outwards and to extend out of two opposite sides of the base; when the extension member is pushed back inside the pull arm, the slide is moved back causing the movable wheel holders to turn inward and to be received inside the base at the bottom.

Abstract: A collapsible cart for carrying luggage or the like has two legs pivoted together at one end for movement between a collapsed position in which the legs are parallel and an expanded, luggage-carrying position in which the opposite ends of the legs are spaced apart into a generally V-shaped configuration. The legs carry wheels at their free ends. A releasable retainer secures the legs together in the collapsed position, and the legs are biassed apart by a spring into the expanded position when the retainer is released.

Abstract: In a compact folding child's stroller a front leg and a rear leg each carry at least one wheel. A push bar has a holding area at its upper end. An articulated X-shape rear chassis joins together the two rear legs. Each push bar can slide parallel to the respective front leg between a deployed position and a folded position. Each rear leg is articulated to the respective front leg. A connecting link connects the lower end of each push bar to the respective rear leg. An operating link is articulated to the connecting link and connected to a sliding piece which slides on each rear leg and to which is articulated the upper end of the X-shape rear chassis in order to cause folding of the X-shape chassis and movement towards each other of the two lateral chassis units when the stroller is folded up.

Abstract: The invention is an improved wheel chair made essentially of metal or plastic pipe, and is capable of being folded into a compact size which may be conveniently stored in the hanging wardrobe or overhead storage of an aircraft. The chair comprises a removable cane handle supported back rest, removable foot rest and rear extension bar and a fabric seat looped over and fastened to and between a pair of seat bars affixed to a pair of intersecting braces connected together by a longitudinal bolt. The intersecting braces each have a sleeve affixed at the bottom end which fit on and rotate on pivot means affixed to the bottom of the side frames. The intersecting braces are pivotally connected to the seat bars for retaining the side frames in spaced relationship during folding and unfolding.

Abstract: A walking aid for a handicapped person having a frame with wheels and brakes, handles attached to the frame at a suitable height for a person, who is enabled to push the walking aid along a walking surface, at least one brake operating assembly including a fixed handbar portion fixed as a handgrip extension of the handles, and a moveable member movably secured to the fixed handbar portion in coaxial relation so that the moveable member may be swung relative to the axis of the fixed portion, the moveable member being normally aligned with and substantially coaxial with the fixed portion, movement of said moveable member moving it out of coaxial alignment, and the brake cable being attached between the fixed portion and the moveable member so that movement of the moveable member will cause extension of the brake cable thus retarding the walking aid.

Abstract: A foldable frame (10) for a lightweight wheelchair (8) is disclosed. The foldable wheelchair frame (10) includes a pair of side frame assemblies (12, 14) each having a substantially horizontally oriented upper side frame member (16) extending for directly supporting a seat assembly (20). A cross bracing assembly (38) is mounted between the side frame assemblies (12, 14) for movement of the side frame assemblies (12, 14) between a deployed position and a collapsed position. The cross bracing assembly (38) includes a pair of cross bracing members (40, 42) pivotally coupled to each other by a pivot (44). The cross bracing members (40, 42) are pivotably coupled to the side frame assemblies (12, 14) by coupling proximate upper ends to the upper side frame members (16) and proximate lower ends to a remainder of the side frame assemblies (12, 14).

Abstract: A wheelchair having a tubular frame comprising a pair of wheel-supporting, horizontally-disposed tubes clamped at their rear ends to upright posts for vertical adjustment of rear wheels mounted thereon. A pair of seat-supporting tubes pivotally connected at their rear ends to the upright posts, above the wheel supporting tubes, are also pivotally connected at their forward ends to links which are rigidly fixed at their lower ends to said wheel supporting tubes. Safety is improved by the rigid connections without significantly impairing the adjustment options.

Abstract: A trailer for a bicycle suited to transport loads such as canoes, surfboards, ladders, etc. The trailer includes a pair of wheels and a frame arrangement having a spreading member for the wheels and a longitudinally extending load receiving rigid framework. The various members are easily separable so that a flexible strap connected between the wheels and a part of the frame as well as the bicycle hold the frame arrangement together. The trailer thereby is lightweight, readily assembled and disassembled, and yet structurally strong to support the loads indicated.

Abstract: A shopping basket is comprised of an arrangement of plural lazytongs frames movable from folded to extended position in which they constitute an erected structure having a floor provided by support bars, these support bars including long bars and short bars connected to the lower part of the enclosure. By selectively adjusting the effective lengths of the long support bars, the envelope and hence capacity of the erect structure can be changed. The structure can embody wheels and a handle thereon so that the basket serves as a readily movable shopping cart.

Abstract: A stroller includes a pair of side frames; a bottom scissor frame for foldably connecting the side frames together; a lower articulated safety spreader bar mechanism for releasably locking a lower portion of the side frames in a spaced apart configuration, the lower spreader bar mechanism being moveable between a locked and unlocked position and including first and second pairs of lower pivoting spreader bars, each bar pivotally connected between a side frame and a central position, a connecting bar connecting together the first and second pairs of bars, and a lower releasable locking assembly for releasably locking the second pair of bars in a locked position; an upper articulated safety spreader bar mechanism for releasably locking an upper portion of the side frames in a spaced apart configuration, the upper spreader bar mechanism being moveable between a locked and unlocked position and including a pair of upper pivoting spreader bars, each pivotally connected between a side frame and a central position,

Abstract: A collapsible recuperating walker having a seat frame and a standing frame is provided. The seat and standing frames are combined with bendable rods extending between the respective two side frames thereof. Each of the side frames are adjustable in height. The bendable rods are angularly displaced to collapse the walker to a smaller size for carrying and transportation. Casters are provided and are controlled to stop or to provide resistance, by means of brake units.

Abstract: A carriage for traversing irregular surfaces, including a pair of extendable handles, a pair of skids to be operated by extending the handles, and a brake system for stopping the carriage on the flat floor of one of stairs whereby the carriage can smoothly slide along the traversed surfaces.

Abstract: A low profile wheelchair includes first and second frame portions that may be selectively spaced apart in an operative position and brought together in a stored position. Armrests, seat back, and footrests are each pivotally mounted to the frame portions so as to minimize the height and length of the wheelchair in a storage position.

Abstract: A collapsible recuperating walker having a seat frame, a standing frame, collapsing units and two brake units. Each collapsible unit consisting of bendable tube joints connected in intermediate portions of upper horizontal tubes and lower horizontal tubes of the seat frame and the standing frame. The collapsible units are capable of being folded so as to make the recuperating walker collapsible to a smaller dimension for transportation or storage. The brake units are used to break the casters and are provided below the standing frame.

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 wheelchair formed from a pair of handle pipes, seat pipes, front pipes, rear pipes and two pairs of front and rear cross pipes. The main body of the wheelchair can be folded simultaneously in a front-to-rear, a left-to-right, and up-and-down directions by pivoting the seat pipes toward the handle pipes. Steps are formed in a double-door fashion and are installed, movable in the front-rear direction so that the steps can be storable inside the wheelchair main body, when folded. Foldable and detachable arms are also mounted so as to be folded with the main body.

Abstract: An improved position-retaining bar for a toy stroller. The position-retaining bar is folded or extended consistently with the toy stroller and consists of two pivotally combined strips. One of the strips has a flexible security buckle extending therefrom for restraining the other strip when the position-retaining bar is folded to a predetermined extent. Therefore, the toy stroller can only be folded to a predetermined extent when front wheels of the toy stroller are hindered during a stroll therewith, thereby protecting a child who pushes the toy stroller from tumbling and falling.

Abstract: A fold-up wheelbarrow comprises a wheel and two elongate frame members connected pivotally to the wheel by hinges. A pair of legs and a flexible, load-bearing body depend from the frame members. The load-bearing body is comprised of a plurality of sheet-like panels made of a flexible material such as canvas or plastic. The wheelbarrow is held open by locking bars that help to stabilize the frame members. When the wheelbarrow is in its open position, the frame members are biased away from each other.

Abstract: A wheelchair that is light in weight and collapsible has drive wheels that are readily removed to reduce its weight and enable a handicapped person or other user to fold it up while the user is in a sitting position. The user may readily change it from a conventional wheelchair to an invalid's caster chair and back. The wheelchair has a fabric seat, seat back, and leg support to reduce its weight, make it inexpensive to manufacture, and make it easy to collapse, and it has no arms to make it easier for a handicapped person to get into and out of the wheelchair.

Abstract: In order to allow bending of members defining the cross-directional size of a frame of a foldaway baby carriage in association with movement of members forming side surfaces of the frame, side bars rotate with respect to front legs to draw up front leg sleeves through front leg rigid links. At this time, guide pins provided in the front legs are moved in spirally extending guide grooves which are formed in the front leg sleeves, so that the front leg sleeves rotate due to the spiral extension of the guide grooves. Thus, a front leg coupling link extending across the pair of front leg sleeves is bent about bend points. A similar structure is employed in relation to a rear leg coupling member extending across a pair of rear legs and a side bar coupling member extending across a pair of side bars.

Abstract: A tilting and laterally folding wheelchair design is described in which a tilting mechanism incorporating a pivoting action at both the front and back of the chair is provided so that as the chair is tilted the center of gravity of the occupant is maintained relative to the wheelbase. A lateral folding device, which incorporates X-cross members free at their upper ends, is stabilized by link members which are pivotally mounted at their outer ends, so as to provide room for the chair to be folded laterally.

Abstract: A locking apparatus is operative to selectively prevent the folding of a wheelchair of the type having a pair of centrally pivoted cross braces under the wheelchair seat. A bracket member is provided at each end of a pin which is adapted to constitute the pivot for the cross braces. An elongate bar is hinged at one end to one of the brackets and is adapted to be swung into a position between the cross braces so as to obstruct folding. A locking device operates between the other end of the bar and the other of the brackets for selectively retaining the bar in obstructing position.

Abstract: A folding wheelchair has a rigid seat, leg support members stored in a compartment within the seat, a rigid backrest that can be collapsed when the wheelchair is folded, armrests that can be swung toward the seat or the backrest, and wheels that can be adjusted to raise or lower the seat and/or to shorten or lengthen the wheelbase. The rigid seat can be raised to a position in which the front or the front and rear portions are elevated.

Abstract: A lightweight, easly transportable wheelchair having seat-support frame members which are adjustably coupled to back-frame members so as to reciprocate up-and-down within guide slots formed in the back-frame members. Additionally, the front and back wheels, the armrests, and the footrests are readily detachable and attachable. This arrangement reduces the overall height, width and depth of the basic frame of the wheelchair to make for easy transportability when the detachable parts are removed.

Abstract: The invention is an improved wheel chair made essentially of metal or plastic pipe, and is capable of being folded into a compact size which may be conveniently stored in the hanging wardrobe or overhead storage of an aircraft. The chair comprises a removable cane handle supported back rest, removable foot rest and rear extension bar and a fabric seat looped over and fastened to and between a pair of seat bars affixed to a pair of intersecting braces connected together by a longitudinal bolt. The intersecting braces each have a sleeve affixed at the bottom end which fits on and rotate on pivot member affixed to the bottom of the side frames.

Abstract: The wheelchair of the present invention is made of a non-metallic material. The wheelchair is made so that it is easily assembled, light weight, and less expensive than traditional wheelchairs. The wheelchair employs a unique hinge assembly which provides support for the seat, back and foot rest. By using the hinge assembly, the seat, back and foot rest are selfsupporting because the hinge assembly distributes the forces acting upon these members through the side panels. The hinge members are molded integrally with the seat, back and foot panels. Further, when the side panel of the wheelchair is formed, slots are formed therein for receipt of the hinge member. The same is true of the foot rest. The present invention also employs an improved adjusitng mechanism for adjusting the pivotal relationship of the foot rest and an improved brake assembly.

Abstract: The invention concerns a foldable trolley for supporting apparatus such as computers, photocopiers or other office of medical equipment while being serviced.A foldable trolley has a base having two sides each having at a top thereof a support member, connecting members connecting the sides so that they can be moved towards and away from one another, wheel members on which the trolley base is mounted, and a detachable trolley top adapted in a horizontal working position to bridge and be supported on the support members when the trolley sides are spaced apart, and in a storage position to be suspended at one side of the folded trolley base.