EP1522296A2 - Modularer Gestellrahmen für ein Rollstuhl - Google Patents

Modularer Gestellrahmen für ein Rollstuhl Download PDF

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Publication number
EP1522296A2
EP1522296A2 EP04256249A EP04256249A EP1522296A2 EP 1522296 A2 EP1522296 A2 EP 1522296A2 EP 04256249 A EP04256249 A EP 04256249A EP 04256249 A EP04256249 A EP 04256249A EP 1522296 A2 EP1522296 A2 EP 1522296A2
Authority
EP
European Patent Office
Prior art keywords
wheelchair
frame
members
frame member
support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP04256249A
Other languages
English (en)
French (fr)
Other versions
EP1522296A3 (de
Inventor
Mark E. Smith
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pride Mobility Products Corp
Original Assignee
Pride Mobility Products Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pride Mobility Products Corp filed Critical Pride Mobility Products Corp
Publication of EP1522296A2 publication Critical patent/EP1522296A2/de
Publication of EP1522296A3 publication Critical patent/EP1522296A3/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
    • A61G5/0808—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction
    • A61G5/0816—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction folding side to side, e.g. reducing or expanding the overall width of the wheelchair
    • A61G5/0825—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction folding side to side, e.g. reducing or expanding the overall width of the wheelchair comprising a scissor-type frame, e.g. having pivoting cross bars for enabling folding
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
    • A61G5/0875—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable dismountable, e.g. where the wheelchair can be disassembled for transportation or storage
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1054—Large wheels, e.g. higher than the seat portion

Definitions

  • the invention relates to the field of wheelchairs, and more particularly to manual wheelchairs that are convertible between various formations, such as a rigid construction and a foldable or collapsible construction.
  • the most common is the folding cross brace wheelchair.
  • This design utilizes a welded cross brace mechanism, allowing the wheelchair to fold similar to a director's chair (from side to side).
  • the main advantage of this method is that the wheelchair can be easily folded by most users.
  • the disadvantage of this design is low energy efficiency due to its loose construction since a part of the energy used to propel the wheelchair is transferred to the frame rather than the wheels.
  • a second popular design is the rigid frame wheelchair.
  • the cross brace mechanism is replaced with tubular crossbars welded to the side frames of the wheelchair.
  • the advantage of this design is its energy efficiency.
  • this wheelchair does not fold for easy storage or transportation.
  • the invention is a modular wheelchair frame comprising a first side frame and a second side frame.
  • a collapsible structural assembly is releaseably connectable to the first and second side frames to space the first and second side frames apart.
  • a rigid unitary structural assembly is also releaseably connectable to the first and second side frames to space the first and second side frames apart.
  • the collapsible structural assembly and the rigid structural assembly are selectively interchangeable to convert the wheelchair frame between a rigid construction and a collapsible construction.
  • the invention is related to a wheelchair frame having a detachable assembly and a pair of side frame members.
  • the detachable assembly includes a support structure having at least four ends, at least two upper members connected to a respective end of the support structure, and at least two lower members connected to a respective end of the support structure.
  • the side frame members are displaced from each other by the removable structure.
  • Each one of the pair includes a first frame member, a second frame member, and a connecting member.
  • the first frame member has a first end, a second end, and a least one support element fixedly attached to the first frame member that supports a respective one of the pair of upper members.
  • the second frame member has a first end, a second end, and at least one bracket fixedly attached to the second frame member that is releasably attached a respective one of the pair of lower members.
  • the connecting member has a first end connected to the first frame member and a second end connected to the second frame member and maintains the first and second frame members in substantially parallel alignment.
  • the detachable assembly may be foldable.
  • the support structure can include at least two cross-support members connected at a pivot point. Each one of the cross-support members is connected to a respective one of the upper and lower members.
  • the lower members can be hinged to a respective mounting component, which may releasably attach to the bracket of the second frame members.
  • the detachable assembly can also be rigid and made of aluminum.
  • Each of the upper members may be releasably connected to a support element of a respective side frame.
  • the frame may also include a leg rest assembly that is releasably attached to the first ends of the first and second frame members.
  • Each of the side frame members can include a back-support mounting tube disposed proximate to the second end of the first frame member.
  • the back support mounting tubes can releasably attach a back support to the pair of side frame members.
  • a wheelchair back support can include a horizontal member and at least two stanchions.
  • the horizontal member may have at least two tubular sections that extend substantially vertical from the horizontal member. Each of the tubular sections can have a first end and a second end configured to receive articles.
  • a removable handle structure can be telescope within the first end of the tubular sections.
  • the stanchions may each have a first end configured for attachment to the wheelchair frame and a second end having a portion configured to be received within the second end of a respective one of the tubular sections.
  • the handle and stanchions may include a T-shaped groove along a portion thereof. The T-shaped groove and a plate cooperate to provide a telescoping feature for the back support.
  • the stanchions can include a tilt adjustment mechanism.
  • the horizontal member can have a first section and a second section that can be attached to a bracket to facilitate the folding of the back support.
  • a wheel chair frame that can includes a pair of side frame members spatially removed from one another.
  • Each of the side frame members can include a first frame member, a second frame member and a connecting member the maintains the first frame member and the second frame member is substantially parallel alignment.
  • At least one C-shaped support element can be attached to the first frame member.
  • At least one bracket that may include a bore can be attached to the second frame member.
  • the first frame member and the second frame member can also include a rear wheel mounting strip.
  • an assembly for use in a convertible wheelchair can include a support structure, at least two upper members attached to the support structure, and at least two lower members also attached to the support structure.
  • Each of the upper and lower members is configured for releasable attachment to the wheelchair at fixed mounting locations.
  • FIG. 1A is an isometric view of a wheelchair constructed according the principles of the present invention.
  • FIG. 1B is an exploded view of the wheelchair of FIG. 1A.
  • FIG. 2A is a perspective view of a first preferred embodiment of a side frame member of the wheelchair of FIG. 1A.
  • FIG. 2B is an end view of the side frame member of FIG. 2A.
  • FIG. 2C is perspective view of a second preferred embodiment of a side frame member in accordance with the present invention.
  • FIG. 3A is an isometric view of a rigid support structure constructed according to the principles of the present invention.
  • FIG. 3B is an end view of the rigid support structure of FIG. 3A.
  • FIG. 4A is an isometric view of a foldable support structure constructed according to the principles of the present invention.
  • FIG. 4B is an end view of the foldable support structure of FIG. 4A.
  • FIG. 5A is an isometric view of a back support constructed according the principles of the present invention.
  • FIG. 5B is an exploded view of the back support of FIG. 5A.
  • FIG. 6A is an embodiment of a back cane constructed according to the principles of the present invention.
  • FIG. 6B is an end view of the back cane of FIG. 6A.
  • FIG. 6C is a isometric view of an embodiment of a pivot structure that is attached to the back cane of FIG. 6A.
  • FIG. 7 is an isometric view of a leg rest support constructed according to the principles of the present invention.
  • a wheelchair constructed according to the principles of the invention, a side frame member, both rigid and foldable detachable structures, a back support, and a leg rest for use with the modular wheelchair of the present invention.
  • a wheelchair 10 constructed in accordance with the principles of the present invention includes a pair of side frame members 14A, 14B (referred to generally as side frame members 14), a detachable assembly 18, a back support 22, a pair of arm rests 24, a pair of leg rest assemblies 26A, 26B (referred to generally as leg rest assemblies 26), a foot rest 30, a seat web 32, a pair of front casters 34A, 34B, and a pair of rear wheels 38A, 38B that are mounted to a respective mounting plate 42.
  • the side frame members 14 include a first frame member 46, a second frame member 50, and a connecting member 54.
  • the first frame member 46 has a first end 58, a second end 62, a pair of support elements 66A, 66B (referred to generally as support element 66), a rear wheel upper mounting strip 70, and a back support mounting tube 74.
  • the first frame member 46 can be constructed of round tubing or the first frame member can be solid.
  • the first frame member 46 is a piece of round aluminum tubing having an outside diameter of approximately nineteen millimeters. Alternatively, square tubing or tubing of other shapes and materials can be used.
  • the first end 58 and the second end 62 of the first frame member 46 are open and configured to receive and removably attach an end of another component of the wheelchair 10 to the side frame member 14.
  • first end 58 can receive an end of the leg rest assembly 26.
  • the second end 62 can receive an end of the arm rest 24 and releasably attach the arm rest 24 to the first frame member 46 by receiving a pin or other attachment mechanism through a bore 78.
  • a cap (not shown) can be placed in either of the first end 58 or the second end 62 when being transported to protect the ends from becoming damaged.
  • the tubular design facilitates the break down of the wheelchair and also allows for customization of the wheelchair by allowing pieces to be added and removed from the ends of the first frame member 46.
  • the support elements 66 are fixedly attached to the first frame member 46. That is, the location of the support elements 66 does not change when converting the wheelchair 10 from a rigid style to a foldable style. This reduces the complexity and the amount of the mounting hardware required to perform the conversion.
  • the support elements 66 are configured to receive a portion of the detachable assembly 18, which is described in more detail below.
  • the support elements 66 can be a semi-circular shape (i.e., C-shaped) and have a bore 82 configured to receive an attachment mechanism. As shown, there are multiple support elements 66; however, in various embodiments there may be only a single support element 66.
  • the rear wheel upper mounting strip 70 facilitates the attachment of the rear wheel 38 via the mounting plate 42.
  • the mounting strip 70 is disposed proximate to the second end 62 and extends towards the first end 58.
  • a plurality of bores 86 allow for the adjustment of the position of the rear wheel 38.
  • the mounting strip 70 can be constructed of the same material as the first frame member 46 (e.g., aluminum) or of a different material (e.g., steel).
  • the back support mounting tube 74 allows the back support 22 to be releasably attached to the side frame member 14 via the bores 90.
  • the back support mounting tube 74 is disposed proximate to the second end 62 and extends substantially perpendicular from the first frame member 46.
  • the shape of the back support mounting tube 74 is complementary to an end of the back support 22 and can be different than the shape of the first frame member 46.
  • the second frame member 50 has a first end 94, a second end 98, a pair of brackets 102A, 102B (referred to generally as brackets 102), and a rear wheel lower mounting strip 106.
  • the second frame member 50 can also be a constructed of round tubing or the second frame member 50 can solid.
  • the second frame member 50 is a piece of round aluminum tubing having an outside diameter of approximately nineteen millimeters. Alternatively, square tubing or other shaped tubing of various materials can be used.
  • the shapes of the first frame member 46 and the second frame member 50 can be substantially similar or different.
  • the first end 94 and the second end 98 of the second frame member 50 are open and configured to receive and removably attach an end of another component of the wheelchair 10 to the side frame member 14.
  • the first end 94 can receive an end of the leg rest assembly 26 and releasably attach the leg rest assembly 26 to the second frame member 50 via the bores 110.
  • a cap (not shown) can be placed in either of the first end 94 or the second end 98 when being transported to protect the ends from being damaged.
  • the brackets 102 are fixedly attached to the second frame member 50. That is, the location of the brackets 102 does not change when converting the wheelchair 10 from a rigid style to a foldable style. This reduces the complexity and the amount of the mounting hardware required to perform the conversion.
  • the brackets 102 are configured to mate with a portion of the detachable assembly 18, which is described in more detail below.
  • the brackets 102 have a bore 114 configured to receive an attachment mechanism.
  • the rear wheel lower mounting strip 106 facilitates the attachment of the rear wheel 38 via the mounting plate 42.
  • the mounting strip 106 is disposed proximate to the second end 98 and extends towards the first end 94.
  • a plurality of bores 118 allow for the adjustment of the position of the rear wheel 38.
  • a second embodiment of a rear wheel mounting plate 42' is adapted for use in conjunction with a second embodiment of side frame members 14'.
  • the second embodiment rear wheel mounting plate 42' is generally L-shaped, and has a first end telescopically received within a second embodiment second frame member 50'.
  • a second end of the second embodiment mounting plate 42' is provided with holes adapted to mate with bores 86, allowing one or more fasteners (not shown) to connect the second embodiment mounting plate 42' to the mounting strip 70.
  • the rear wheel lower mounting strip 106 is eliminated, and replaced by a plurality of holes 118' drilled in the second embodiment second frame member 50'.
  • the mounting plate 42' may be connected to the second frame member 50' by installing a fastener through a hole 118' and a mating hole in mounting plate 42'.
  • the second embodiment rear wheel mounting plate 42' further comprises a plurality of mounting holes wherein one of the rear wheels 38 of the wheelchair 10 may be adjustably connected to the second embodiment rear wheel mounting plate 42' by a fastener (not illustrated) installed in one of the plurality of mounting holes.
  • the second embodiment rear wheel mounting plate 42' thus provides both wheel height adjustment along with longitudinal adjustment of the rear wheels 38 relative to a remainder of the wheelchair 10.
  • first and second embodiment side frame members 14' are similar to corresponding features of the first embodiment side frame members 14.
  • first frame member 46, support elements 66, back support mounting tube 74 and brackets 102 are similar in both the first and second embodiment side frame members 14 and 14'.
  • second embodiment second frame member 50' could be telescopically received within the second embodiment rear wheel mounting plate 42'.
  • the detachable assembly 18 is rigid. That is, the detachable assembly 18 is not foldable.
  • the detachable assembly 18 includes a support structure 122 that has ends 126A, 126B, 126C, ... 126H (referred to generally as ends 126), two upper members 130A, 130B (referred to generally as upper members 130) attached to a respective end 126, and two lower members 134A, 134B (referred to generally as lower members 134) also attached to a respective end 126. Both the upper members 130 and lower members 134 can be tubular or solid.
  • the support structure 122 includes a plurality of V-shaped solid or tubular supports 138.
  • Each of the V-shaped supports 138 includes a first end, an apex 142, and a second end.
  • the apex 142 of each of the V-shaped supports 138 is attached to the apex 142 of an opposing V-shaped supports 138.
  • the first end of a first V-shaped supports 138 is the end 126A of the support structure 122.
  • the second end of the same V-shaped support 138 is the end 126C of the support structure 122.
  • the first end of the opposing V-shaped support 138 is the end 126B of the support structure 122, and the second end is the end 126D of the support structure 122.
  • the V-shaped supports are rotated substantially 90°.
  • the apexes 142 of two rotated V-shaped supports 138 are connected to a respective end of a substantially linear tubular or solid member.
  • the resulting structure resembles a bent I-shape, wherein the linear member is substantially parallel to the ground.
  • the upper members 130 are attached to a respective end 126 of the support structure 122.
  • the upper members 130 are shaped to be received by the support elements 66 of the side frame members 14.
  • the upper members 130 can include a plurality of bores 146 and an inner extension tube 150.
  • a respective bore 146 can be aligned with the bore 82 of the support element 66.
  • a quick release attachment mechanism i.e., a fastener
  • the inner extension tube 150 telescopes from within the upper member 130 to provide additional length to the upper member 130.
  • the upper members 130 support the seat web 32 in which the user of the wheelchair 10 sits.
  • the lower members 134 are also attached to a respective end 126 of the support structure 122.
  • the lower members 134 have first ends and second ends that are configured to be attached to the brackets 102 of the side frame members 14.
  • the first and second ends include a threaded bore which receives a screw that passes through the bore 114 of the bracket 102.
  • the ends are configured to receive a quick-release attachment mechanism such as pin.
  • the attachment mechanisms that attach the upper members 130 to the support elements 66 and the lower members 134 to the brackets 102 are removed.
  • the detachable assembly 18 can be replaced with another detachable assembly 18'.
  • the detachable assembly 18' can be a foldable type structure as shown in FIGs. 4A and 4B.
  • the detachable assembly 18' includes a support structure 122' that has ends 126A', 126B', 126C', ... 126H' (referred to generally as ends 126'), two upper members 130A', 130B' (referred to generally as upper members 130') attached to a respective end 126', and two lower members 134A', 134B' (referred to generally as lower members 134') also attached to a respective end 126'.
  • the support structure 122' facilitates the folding of the wheelchair 10 for easy transportation.
  • the support structure 122' includes a plurality of solid or tubular supports 138'.
  • Each of the supports 138' includes a first end and a second end.
  • a pair of the supports 138' is attached at a pivot point 154 by a pivot pin or the like.
  • the first end of one of the supports 138' is the end 126A' of the support structure 122'.
  • the second end of the same support 138' is the end 126D' of the support structure 122'.
  • the first end of the other support 138' is the end 126C' of the support structure 122', and the second end is the end 126B' of the support structure 122'.
  • the supports 138' form an X-shape that is foldable about the pivot point 154.
  • the upper members 130' are attached to a respective end 126' of the support structure 122'.
  • the upper members 130' are shaped to be received by the support elements 66 of the side frame members 14.
  • the upper members 130' can include a plurality of bores 146' and an inner extension tube 150'.
  • a respective bore 146' can be aligned with the bore 82 of the support element 66.
  • a quick-release attachment mechanism i.e., a fastener
  • the inner extension tube 150' telescopes from within the upper member 130' to provide additional length to the upper member 130'. Additionally, the upper members 130' support the seat web 32 in which the user of the wheelchair 10 sits.
  • the lower members 134' are also attached to a respective end 126' of the support structure 122'.
  • the lower members 134' have first ends and second ends which are configured to be attached to the brackets 102 of the side frame members 14.
  • the first and second ends include a threaded bore which receives a screw that passes through the bore 114 of the bracket 102.
  • the ends are configured to receive a quick-release attachment mechanism such as pin.
  • the back support 22 includes a horizontal member 160, a pair of removable push handles 164, and a pair of stanchions 168.
  • the back support 22 can made of aluminum, although other materials such as steel and titanium can be used.
  • a tubular section 172 is located at each end of the horizontal member 160.
  • the tubular sections 172 extend vertically relative to the horizontal member 160.
  • Each of the tubular sections 172 has a first end 176 configured to receive one of the push handles 164 and a second end 180 configured to receive one of the stanchions 168.
  • Each of the tubular sections 172 also includes at least one bore 184 at each of the first end 176 and the second end 180.
  • an adjustment knob 188 is threaded through the bore 184 of the first end 176 and attached to a plate or a shaped nut (neither shown).
  • the horizontal member 160 is a two section structure that facilitates folding of the back support 22.
  • Each section 160' has an end that is attached to a respective tubular section 172 as described above and another end 162' that is capped off.
  • a dome cap can be inserted into the end 162' of the section.
  • the two capped ends of the sections are placed in contact with each other and secured in place by a bracket or bar hinge 166.
  • the bar hinge 166 is attached to each of the sections 160' by screws or other quick release fasteners.
  • the removable handles 164 include a generally T-shaped groove 192 that extends from a first end 196 to a second end 200 of the handle 164.
  • the first end 176 of the tubular section 172 receives the second end 200 of the handle 164.
  • the groove 192 receives the plate that is within the tubular section 172. Although described as having a generally T-shape, the groove 192 can have other shapes as well.
  • the second end 200 telescopes within the tubular section 172. Turning the adjustment knob 188 moves the plate into contact with groove 192 and fixes the height of the handle. An infinite number of height adjustments of the handles 164 are achievable with the plate and groove design of the present invention.
  • the stanchions 168 include a back cane section 204 and a tilt adjustment mechanism 208. Similar to the handles 164, the back cane section 204 includes a generally T-shaped groove 212 that extends from a first end 216 to a second end 220. Also, the back cane section 204 includes a plurality of bores 222 that are configured to receive an attachment mechanism such as a screw or the like. The second end 180 of the tubular section 172 receives the first end 216 of the back cane section 204. The first end 216 telescopes within the tubular section 172 and controls the overall height of the back support 22.
  • Screws or other attachment means are inserted through the bores 184 of the second end 180 of the tubular section 160 and through a respective bore 222 of the back cane 204.
  • a shaped nut is disposed within the groove 212.
  • An adjustment knob is used to set the height of the back support 22 forcing the plate into contact with groove 212.
  • the tilt adjustment mechanism 208 includes a bottom portion 224, a top portion 228, and a pivot section 232.
  • the bottom portion 224 mates to a respective back support mount 74 of the side frame member 14 via a set of threaded bores 236.
  • a screw or another similar fastener is inserted through bore 90 of the back support mount 74 and through bore 236 of the bottom portion 224 of the tilt adjustment mechanism 208.
  • the back cane 204 is mated with the top portion 228 via the bores 222 of the back cane 204.
  • a screw is inserted through a respective bore 222 and received by a bore 240 of the top portion 224.
  • the angle of the back 204 is controlled by the pivot section 232.
  • a part of the top portion 228 is inserted into the pivot section 232 and attached to the pivot section such that the desired angle of the back cane 204 is achieved.
  • a second embodiment leg rest assembly 26' includes an upper attachment member 244, a lower attachment member 248, a joining member 252 and a foot rest attachment member 256.
  • the lower attachment member 248 is connected to the upper attachment member 244 via the joining member 252.
  • the first end 58 of the first frame member 46 receives an end 260 of the upper attachment member 244.
  • the first end 94 of the second frame member 50 receives an end 264 of the lower attachment member 248.
  • Both the upper attachment member 244 and the lower attachment member 248 are releasably attached to the side frame member 14.
  • the foot rest attachment member 256 has a first end 268 proximate to the upper attachment member 244 and a second end 272. The first end 268 is pivotally attached to the joining member 252.
  • the foot rest attachment member 256 can swing through an angle of about 70°.
  • the second end 272 is configured to receive a foot rest (not shown).
  • a 70° swinging leg rest is illustrated, other conventional leg rest supports could be alternatively used.
  • a 1 inch or 2 inch tapered leg rest, an 80° rigid leg rest, a 1 or 2 inch offset leg rest, or a rigid leg rest could be substituted.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Handcart (AREA)
  • Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
EP04256249A 2003-10-08 2004-10-08 Modularer Gestellrahmen für ein Rollstuhl Withdrawn EP1522296A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US50949003P 2003-10-08 2003-10-08
US509490P 2003-10-08

Publications (2)

Publication Number Publication Date
EP1522296A2 true EP1522296A2 (de) 2005-04-13
EP1522296A3 EP1522296A3 (de) 2006-01-04

Family

ID=34312489

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04256249A Withdrawn EP1522296A3 (de) 2003-10-08 2004-10-08 Modularer Gestellrahmen für ein Rollstuhl

Country Status (3)

Country Link
US (1) US20050077760A1 (de)
EP (1) EP1522296A3 (de)
CA (1) CA2484157A1 (de)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
KR20190044962A (ko) * 2017-10-23 2019-05-02 박진원 장애인용 휠패러 장치

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US20060076748A1 (en) * 2004-10-08 2006-04-13 Sunrise Medical Hhg Inc. Wheelchair with damping mechanism
JP4050785B2 (ja) * 2005-02-15 2008-02-20 叡子 古荘 車椅子
TWM297738U (en) * 2006-01-18 2006-09-21 Pro Glory Entpr Co Ltd Detachable wheelchair
US7512998B2 (en) * 2006-06-15 2009-04-07 Martin Manufacturing Company, Llc Examination table
US8534683B2 (en) * 2011-01-10 2013-09-17 Brookefield Hunter, Inc. Wheelchair handlebar adjustment
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US11376173B2 (en) 2016-12-15 2022-07-05 The World's Only Carry-On Wheel Chair, Llc Wheeled chair
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CA2484157A1 (en) 2005-04-08
EP1522296A3 (de) 2006-01-04

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