Abstract: A child carrier frame includes a lower frame, an upper frame and a frame support. The frame may be adjusted between an upright position, for use, and a folded position. During folding, the carrier frame may be adjusted both to reduce its height and its width, such that a folded size is obtained that is smaller in at least two dimensions than a similar carrier frame folded to reduce only one of its height and width.

Abstract: Wheelchair designs and enhancements are provided for use with conventional wheelchair designs. The designs and enhancements include first and second contoured folding seat panels that are hingedly mounted with respect to the wheelchair frame and that are offer interlocking functionality. The folding seats generally provide contouring in both front-to-back and side-to-side directions. Features are provided to prevent capture of objects between seat panels as they are brought into interlocking engagement. Pivotal footrests that offer enhanced stability in the form of lateral, front-to-back and up-down stability are provided In addition, axle and axle plate combinations are described that provide enhanced flexibility in relative positioning with respect to the wheelchair frame. The disclosed features and functionalities may be incorporated into wheelchair designs, either in whole or in part, to provide enhanced user interaction with the wheelchair.

Abstract: A collapsible two tier support as for use in camping dishwashing is formed by four uprights connected by pivoted cross brace sets and having a fabric panel defining on upper support connected to the tops. Additional cross brace sets support a second fabric panel at a lower level adjacent the uprights. The entire assemblage is collapsible by pivoting action of the cross brace members.

Abstract: A combination of one table and two chairs for two persons includes two folding chairs and one folding table. Each of the folding chairs include arm tubes, front crossed tubes, back-rest tubes, seating frame tubes, rear crossed tubes, and a chair surface fabric. The folding table includes front vertical tubes, front crossed tubes, rear vertical tubes, rear crossed tubes, and a table surface fabric. The arm tubes are connected cross-wise to the front crossed tubes, and the crossed connection point is provided with a reinforced block. The seating frame tubes are connected cross-wise to the back-rest tubes, and the arm tubes are connected to the front ends of the seating frame tubes via U-shaped hinging elements. The upper portions of the rear crossed tubes are connected to the back-rest tubes, and the lower portions thereof are connected to the seating frame tubes.

Abstract: A universal heavy duty, light weight, portable, foldable chair according to the present disclosure comprises a frame 1 comprising four shaped supports 11a, 12a, 13a, 14a held together and in position at the center by a hollowed cylinder hinge 15a. The seat comprises of two cloths 16a and 16b. There exists one piece of cloth 18a and 18b at each side of the chair to act as stabilizer for the frame and the chair as a whole. Cloth 21a will be connected to the two piece cloth assembly 22a at one end and have a locking mechanism 23a at the other to lock with one end of 21b. Cloth 21b will be connected to the two piece cloth assembly 22b at one end and have a corresponding locking mechanism 23b to fit the mechanism 23a at the end of the cloth 21a.

Abstract: A folding joint arrangement, which is adapted for incorporating with a foldable furniture constructed by a plurality of first and second frame tubes, includes an angle joint body, a pivot arm integrally extended from the angle joint body to define a first axis, wherein the pivot arm is adapted for pivotally connecting with one of the first frame tube such that the first frame tube is capable of rotating about the first axis of the pivot arm, and a connector arm integrally extended from the angle joint body to define a second axis perpendicularly to the first axis wherein the connector arm is adapted for pivotally connecting with one of the second frame tube such that the second frame tube is capable of rotating about the second axis of the connector arm, so as to pivotally connect the first and second frame tubes in a two-plane directional movement.

Abstract: Disclosed is a folding chair comprising a frame and a seat sheet, which has means for protecting a user's vertebral column and means for expanding the seat to improve its seating comfort and stability. The expanding means are connected to both sides of the seat, and the protecting means is coupled at its opposite ends to armrests, upper portions of frame elements or the expanding means. The expanding means are hanged on projections formed by bending upper portions of the front frame elements. The protecting means is held at a certain height on a back rest of the chair but being allowed to be laterally moved by holding means, thereby enabling length of the protecting means to be adjusted. The folding chair may have one or more means for protecting a user's vertebral column.

Abstract: A stroller is provided with a handle having a horizontal middle part and two side pipes. The two side pipes are connected to the horizontal middle part by gear trains so as to be turnable about axes perpendicular to an axis of the horizontal middle part, respectively. A folding part operating mechanism is incorporated into the horizontal middle part of the handle. The side pipes can be folded and unfolded relative to the horizontal middle part by turning the horizontal middle part about its axis.

Abstract: A foldable bench having at least a pair of seat sections pivotally connected together. Pivotally mounted to the other side of each seat section is a leg assembly that is movable from a folded position to an extended position. When the bench assumes an unfolded position a strut extends from a point to a respective leg assembly and when the bench carries a load each strut is held in compression. An interconnecting member connects the two leg assemblies and is generally held in tension when the bench assumes an unfolded position and carries a load.

Abstract: A collapsible chair. The chair includes a chair frame having two spaced leg structures and a top ring mounted to and supported on the leg structures. Each leg structure includes a top bar and front and rear side bars depending from the top bar to form a substantially U-shape. The top ring is fixed to the top bars. The front and rear side bars are rotatable with respect to the top bar for collapsing the chair frame. Front and rear ground members are respectively connected between the front side bars and the rear side bars. The ground members have a U-shaped configuration having a bottom section positionable on a fixture and first and second side sections extending from opposite ends of the bottom section. The first side section is rotatably fit over a lower end of a first one of the front side bars or the rear side bars of the leg structures and the second side section is removably fit over a second one of the front side bars or the rear side bar of the leg structures.

Abstract: A stroller includes two rear upright tubes and two assist tubes which are respectively connected to the rear upright tubes in parallel by two joint members. At least one folding assembly is connected between the two upright tubes. The rear upright tubes and the two assist tubes reinforce the structure of the stroller. Two adjusting members are mounted to the rear leg tubes and a handle is biased by torsion springs and a pin connected to the handle extends through the adjusting member so as to engage a notch defined in the rear leg tube. A backrest is pivotably connected to the adjusting members which is positioned by engaging the pin with the notch in the rear leg tubes so that the backrest can be leaned in a stable status.

Abstract: A collapsible wheel chair with displaceable seat panels includes a first side frame member, a second side frame member, a seat frame, a first pivoting support member, a second pivoting support member, a first pair of wheels and a second pair of wheels. The first side frame member is retained relative to the second side frame member with the first and second pivoting members. One side of the seat frame is pivotally attached to one of the side frame members. The seat frame includes at least one seat section, which may each be independently raised or lower on one end thereof. The first pair of wheels are pivotally retained by the first and second side frame members. The second pair of wheels are pivotally retained by the first and second side frame members.

Abstract: A portable seat is formed from rectangular frame members that are joined at their midpoints and foldable between an open and a closed position. A flexible seat is attached to the top leg of each of the frame members and pouches are affixed to the sides of the portable seat. Various handles and straps are also attached to the sides of the portable seat to facilitate transport.

Abstract: A collapsible chair (100) with solid armrests (160) has a front leg (110), a rear leg (120), a seat support rod (130), and a back support rod (140) coupled together such that the back support rod reclines independently of the seat support rod, and that the chair collapses in a single movement in which the front legs approximate each other when the front legs pivot towards the rear legs.

Abstract: A collapsible chair (100) with solid armrests (160) has a front leg (110), a rear leg (120), a seat support rod (130), and a back support rod (140) coupled together such that the back support rod reclines independently of the seat support rod, and that the chair collapses in a single movement in which the front legs approximate each other when the front legs pivot towards the rear legs.

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

Abstract: A collapsible chair includes a frame composed of four pairs of cross legs located on four sides of the chair, namely, front, back and side cross legs. The cross legs are connected at their upper and lower ends with connector blocks and feet, respectively and collapsible in a scissors-like manner. A pair of vertical back legs are located at opposite sides of the back cross legs. A pair of arm rests have front ends pivotably connected to the side cross legs and rear ends pivotably and slidably supported by an arm rest support assembly. In one embodiment, the arm rest support assembly includes a pair of vertical support rods connected to the vertical back legs, and a pair of sleeves pivotably connected to the support rods and adapted to slidably receive the arm rests.

Abstract: A universal accessory adapter, which is adapted for attaching to a collapsible outdoor furniture, includes a supporting device for rigidly supporting an accessory item, at least a connector for detachably attaching the supporting device to a frame leg of the collapsible outdoor furniture, and a foldable frame arranged for selectively folding the supporting device from a folded position to an unfolded position. In which, in the folded position, the supporting device is moved to a position close to the frame leg of the collapsible outdoor furniture, and in the unfolded position, the supporting device is moved away from the frame leg of the collapsible outdoor furniture, so as to spacedly mount the supporting device with respect to the frame leg of the collapsible outdoor furniture. Therefore, the universal accessory is substantially supported by the collapsible outdoor furniture, so as to rigidly support the accessory item on the universal accessory adapter.

Abstract: In a reclining lounger, patio chair or cot which folds to a collapsed condition, a cooler/utility bag and cup holder is fastened to the fabric seat liner at a first location so as not to become lost in use, and is detachably secured at a second location to be released therefrom in folding the cooler/utility bag and cup holder into an empty slot provided in the lounger, patio chair or cot when being collapsed, in facilitating the transport of the cooler/utility bag and cup holder along with such casual seating when being stored.

Abstract: Apparatus including a generally flat sheet with a plurality of score lines formed thereon, the score lines defining a contour of a resting surface, a plurality of legs and a plurality of web portions all contiguous with each other. The sheet may be folded about the score lines to form a stool placeable upon a supporting surface, wherein the resting surface is distanced from the supporting surface and the legs extend from the resting surface to the supporting surface, and adjacent web portions are fastened to each other.

Abstract: A wheelchair frame has first and second side frames, a slider housing, and a slider member mounted for movement relative to the slider housing. Links connect the slider housing to both the first and second side frames, and links connect the slider member to both the first and second side frames. Movement of the slider member relative to the slider housing actuates the links to change the spacing between the first and second side frames, thereby opening and closing the wheelchair frame.

Abstract: A foldable chair includes a pair of front legs, a pair of rear legs each connected to a corresponding one of the pair of front legs, a pair of rear legs pivotally connected to a connection plate sandwiched between the pair of rear legs, a seat with multiple protrusions received in corresponding cutouts in each of cross pieces which are respectively and pivotally connected between the front leg and the rear-leg, a first and a second armrest on opposite sides of the seat. A table has two grooves oppositely defined in side faces of the table to correspond to the two guiding pins of the second armrest such that the table is slidable relative to the second armrest and a back is pivotally connected between two rear legs by means of two third connectors.

Abstract: A folding chair includes two rear legs having a predetermined shortened length and could therefore be collapsed into a rectangular body having a reduced overall length to occupy an even small space. A backrest is supported on two supporting tubes, which have lower insertion sections for inserting into upper bores of the rear legs. Push buttons are mounted in the supporting tubes and are normally pushed outward by elastic elements to engage with holes provided on the supporting tubes and the rear legs and thereby hold them together. When the push buttons are pushed radially inward, the supporting tubes could be detached from or retracted into the rear legs for the folding chair to have an even reduced collapse volume.

Abstract: An improved folding chair comprises two support frames and toggle joint bars bridging the two support frames about an axis in a cross and staggered manner to form a seating zone. The two opposing inner sides of the front post and the rear post of the support frames have respectively a hollow coupling sleeve mounted thereon to couple with two ends of linkage bar. The coupling sleeve has an extending stepwise pivotal neck to couple with a tubular rod to attach the toggle joint bars such that the toggle joint bars are turnable about the axis to turn the tubular rod about the pivotal neck to allow the support frame and the toggle joint bars to fold toward one another.

Abstract: A folding chair has a seat, a first leg, a second leg, a first rod connected to the first leg and the second leg, a second rod connected to the first leg and the second leg, and a folding device. The folding device has a first joint and a second joint. The first joint has a guide channel, a circular aperture, and a slant round hole for receiving the first rod. The second joint has a post inserted in the guide channel, a hollow protruded block inserted in the circular aperture of the first joint, a round through aperture, and a slant circular hole for receiving the second rod. A bolt passes through the round through aperture of the second joint and the circular aperture of the first joint. A nut engages with the bolt.

Abstract: An improved folding chair comprises two support frames and toggle joint bars bridging the two support frames about an axis in a cross and staggered manner to form a seating zone. The two opposing inner sides of the front post and the rear post of the support frames have respectively a hollow coupling sleeve mounted thereon to couple with two ends of a linkage bar. The coupling sleeve has an extending stepwise pivotal neck to couple with a tubular rod to attach the toggle joint bars such that the toggle joint bars are turnable about the axis to turn the tubular rod about the pivotal neck to allow the support frame and the toggle joint bars folding toward one another.

Abstract: A foldable chair frame includes cross-shaped front and rear leg units, and first and second side frame units. Each of the side frame units includes first, second and third side leg members, and a coupling member. The first side leg member has two ends respectively connected to a lower front leg part of one of the front leg units and an upper rear leg part of one of the rear leg units, and an intermediate leg portion pivotally connected to the coupling member. The second side leg member has two ends respectively connected to an upper front leg part of one of the front leg units and a front end section of the coupling member. The third side leg member has two ends respectively connected to a lower rear leg part of one of the rear leg units and a rear end section of the coupling member. One of the second and third side leg members is connected pivotally to the coupling member to permit movement of the second and third side leg members away from the first side leg member to an unfolded position.

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

Abstract: A folding chair includes collapsible rungs permitting folding in two directions. Stability is further enhanced by the upholstery which further forces the top rung of the chair downward making the chair rigid in the open position. Side rails and back supports slide freely along the chair's rear legs creating a folding mechanism that folds the seat upwards while also pulling the rear leg upwards in the same direction resulting in greater stability without increasing the height of the folded package.

Abstract: A folding chair includes collapsible rungs in a backrest and seat permitting folding in two directions. Stability is further enhanced by the upholstery which further forces the top rung of the chair downward and the center rung rearward, making the chair rigid in the open position. Siderails and back supports slide freely along the chair's rear legs creating a folding mechanism that folds the seat upwards while also pulling the rear leg upwards in the same direction resulting in greater stability without increasing the height of the folded package.

Abstract: A foldable chair frame includes cross-shaped front and rear leg units, and first and second side frame units. Each of the side frame units includes first, second and third side leg members, and a coupling member. The first side leg member has two ends respectively connected to a lower front leg part of one of the front leg units and an upper rear leg part of one of the rear leg units, and an intermediate leg portion pivotally connected to the coupling member. The second side leg member has two ends respectively connected to an upper front leg part of one of the front leg units and a front end section of the coupling member. The third side leg member has two ends respectively connected to a lower rear leg part of one of the rear leg units and a rear end section of the coupling member. One of the second and third side leg members is connected pivotally to the coupling member to permit movement of the second and third side leg members away from the first side leg member to an unfolded position.

Abstract: A reclining beach chair incorporating a frame having pairs of crossed front, rear and side legs, with each leg including a pair of bends in opposing directions in bringing the seat level of the chair closer to the ground, and with connectors for the legs and a tilt-locking mechanism for stabilizing the chair and positively fixing it at the reclining angle set when opened or folded, and for collapsing the chair to a compact package when closed.

Abstract: A foldable chair includes four supporting legs, each having a top portion, a bottom portion, and an intermediate portion, and four stretchers, each disposed to brace two adjacent supporting legs. When upper hook ends of the stretchers are slidably moved to a folded position to be proximate to the top portions, the two adjacent supporting legs are closer to each other. Four first coupling members are slidably mounted on the intermediate portions, and are connected to the upper hook ends. Four second coupling members are slidably mounted on the intermediate portions, and are disposed above and are engageable with the first coupling members. A flexible seat sheet is disposed to be grasped by gripping portions of the second coupling members and is tensed when the supporting legs are in the spread position.

Abstract: A flexible foldable beach chair having a string-bar-connector assembly which allows the chair to collapse into a compact package. The string-bar-connector assembly is insertably or pivotally attached to two back-side bars on left and right, front and rear bottom ends of the chair. The back side bars includes a back-rest including reclining linkages and a pivotally connected seat support structure with including reclining adjustability. The seat and back-rest are made of a durable nylon weave fabric, which is impervious to water and sand debris. The assembly include stoppers or plugs attached within all the bars for constraining the durable and flexible string of the assembly, and for preventing accumulation of foreign material within the bars. Notches are formed within a side surface of the rear legs for various levels of adjustability. The foldable beach chair is light-weight, compact and portable.

Abstract: A folding chair with increased stability having side legs comprising rear portions pivotably connected to lower portions of the rear legs and extending at an acute angle from the rear legs toward the curved portions, and forward portions extending at an acute angle from the curved portions. The seat rotates about a seat rod, and the side legs pivot about the rear legs at a point near the bottom of the rear legs, to provide a chair that in folded position is relatively flat for ease of storage and transportation, and that in unfolded position provides a more stable chair.

Abstract: A folding chair having: a frame consisting of a pair of front crossed legs; a pair of back crossed legs; and two pairs of side crossed legs, each pair of crossed legs pivotally connected together where they cross. The lower ends of the front legs and the lower, front ends of the side legs are pivotally connected to first and second lower, front pads. The lower ends of the back legs and the lower, back ends of the side legs are pivotally connected to first and second lower, back pads. The upper ends of the back legs and the upper, back ends of the side legs are pivotally connected to first and second upper, back pads. The upper ends of the front legs and the upper, front ends of the side legs are pivotally connected to first and second upper, front pads. The upper ends of the front legs slidably pass through the first and second upper front pads, the upper ends bent to form hand rests above the upper front pads. The upper, front, ends of the side legs are pivotally connected to the upper front pads.

Abstract: A folding seat assembly has a seat mounted for pivoting movement toward and away from a back-support section. The seat includes a first panel and a second panel mounted for pivoting movement with respect to the first panel so that the two-panel seat "folds in half." The seat support pedestal also folds in half and the back-support section pivots for stowage. The stowed, folded seat assembly is nominally one-half of the width of the same seat assembly unfolded for use. A new method for folding an auxiliary seat assembly for stowing includes folding the seat second panel toward the first panel to form a folded seat. The folded seat is then urged against the back-support section and for stowing, both the seat and support section are depressed against the vehicle component, e.g., a fender.

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 wheelchair for controlled environments includes a pair of tubular sideframes interconnected by a seat and a backrest. Sockets are welded to the sideframes for receiving pins on the underside of the seat. The position of the backrest is adjustable and the backrest is separated from the seat by a gap to avoid trapping contaminants. All metal components of the wheelchair have in integral outer surface. Tacky rollers clean the wheels as the wheelchair rolls and mechanically couple a power unit to the rear wheels. The power unit is controlled from a keyboard attached to a tubular armrest on the wheelchair. Control and signal cables from the keyboard are located within the armrest. A protective garment is provided with the wheelchair to contain contaminants in the clothing of the user and to protect the user.

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 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 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: There is provided a portable and collapsible seat for infants having a relatively compact closed condition for transportation and storage, and an open condition for use. The portable seat includes a collapsible frame having a pair of oppositely disposed longitudinal side rails, each with front and rear ends, a front support attached adjacent the respective front ends of the side rails, and a rear support attached adjacent the respective rear ends thereof. The supports extend downwardly and support the side rails in a rear-to-front inclined and parallel relationship when in open condition. The side rails are foldable outwardly between closed and open conditions. The seat further includes a flexible cradle selectively attached to the frame having a contoured recess for comfortably receiving and supporting the infant in use. The cradle further includes a head roll member situated adjacent and between respective rear ends of the side rails in use, and a leg roll member situated adjacent the respective front ends.

Abstract: A foldable wheelchair having a light weight construction employing an interlocking mechanism between the individual parts to provide a wheelchair of improved structural stability without a separate frame assembly. The wheelchair comprises molded panels, which are interchangeable, and support elements, also interchangeable, the entire assembly being connected together by means of interlocking buttons and pins or rods.

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: A wheelchair having opposing sideframes which comprise individual frame sections which are connected by a longitudinally and angularly adjustable joint. The frame sections include a fixed base section connected to linear bar sections. The bar sections are provided with lateral slots containing slidable fasteners. Link elements having fasteners that engage the slidable fasteners join together the bar sections. The joint is movable along the bar section slots and is rotatable about the link fasteners. Similarly, adjunct wheelchair assemblies may all be adjustably connected to the slidable fasteners of selected frame bar sections. The sideframes can include side braces and may be connected by laterally adjustable spacer bars.

Abstract: A portable seat having a stable three-legged frame, one leg of the frame being bifurcated with each of its bifurcations being coupled such that the remaining two legs may be drawn close to or away from each other. A seating element is releasably coupled to the top of the frame and maintains it in its useful position. The seating element may be coupled to the side of the frame when the frame is folded for storage or transport. Footrests are provided by the coupling of horizontal members to the frame at various positions thereon.

Abstract: A foldable wheelchair is provided which includes first and second side frames which each rotatably carry a drive wheel and traveling wheel. A foldable seat extends between the side frames to form a flat, rigid surface when the wheelchair is open and to collapsably pivot upwardly when the wheelchair is folded. First and second hinges are positioned beneath and behind the foldable seat, respectively, and each extends between the side frames so as to pivot about an upwardly extending axis and to move rearwardly as the wheelchair is folded. Both hinges comprise a first arm pivotably secured at one end to a respective one of the side frames and extending generally inwardly and rearwardly of the foldable seat and a second arm pivotably secured at one end to the other of the side frames and at the second end pivotably connected to the other end of the first arm so as to form a hinge therewith.

Abstract: A baby carriage has front legs, rear legs disposed to cross the front legs, push rods pivotally connected at the lower ends thereof to the upper ends of the front legs, cross rods crossing each other in the form of the letter X and pivotally connected at the upper ends thereof to the push rods and at the lower ends to the rear legs, lateral frame members pivotally connected at the front ends thereof to the upper ends of the rear legs and at the rear ends thereof to the push rods, widthwise connecting members bendably constructed and defining the width of the baby carriage when the latter is in the opened state, push rod locking mechanisms for inhibiting the push rods from pivoting relative to the front legs when the baby carriage is brought into the opened state, and cross-rod locking mechanism adapted to abut against the upper ends of the cross-rod to inhibit an upward movement of the cross-rods when the baby carriage is brought into the opened state.