EP1374818B1 - Portable folding wheelchair - Google Patents

Portable folding wheelchair Download PDF

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Publication number
EP1374818B1
EP1374818B1 EP03005814A EP03005814A EP1374818B1 EP 1374818 B1 EP1374818 B1 EP 1374818B1 EP 03005814 A EP03005814 A EP 03005814A EP 03005814 A EP03005814 A EP 03005814A EP 1374818 B1 EP1374818 B1 EP 1374818B1
Authority
EP
European Patent Office
Prior art keywords
tube
shaped
sides
pin
shaped tube
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.)
Expired - Lifetime
Application number
EP03005814A
Other languages
German (de)
French (fr)
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EP1374818A1 (en
Inventor
Mao-Shun Li
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Individual
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Individual
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Filing date
Publication date
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Publication of EP1374818A1 publication Critical patent/EP1374818A1/en
Application granted granted Critical
Publication of EP1374818B1 publication Critical patent/EP1374818B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • A61G5/0833—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction folding front to back, e.g. reducing or expanding the overall depth of the wheelchair
    • A61G5/0841—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction folding front to back, e.g. reducing or expanding the overall depth of the wheelchair comprising a scissor-type frame, e.g. having pivoting cross bars for enabling folding

Definitions

  • the invention relates to a rehabilitative wheelchair.
  • the German utility model G 88 16 133.1 discloses foldable wheelchair which comprises four driving rollers that are affixed to two support frames which form an "X" in the unfolded state and are connected by a bolt.
  • the two support frames support a seat frame which is covered by a canvas.
  • the wheelchair further comprises a foldable backrest which comprises a backrest frame which is covered by a canvas.
  • Most elements of the invention are pivotally coupled through pins and have anchor means for positioning and anchoring.
  • anchor means for folding, first, collapse and fold the front U-shaped tube and the rear U-shaped tube in the forward and rearward direction, then turn the U-shaped foot pedal and the armrest upwards, and finally turn the U-shaped handle tube downwards to fold the whole wheelchair in a smaller size. Users can easily carry or put the folded wheelchair into a car through the handle located on the rear end of the seat canvas.
  • the rear U-shaped tube and the upright tube are bridged by a sleeve on the upper ends thereof.
  • the sleeve provides an interval between the rear U-shaped tube and the upright tube to facilitate folding of the wheelchair. It also gives the rear U-shaped tube an anchoring support after the wheelchair is extended (with the flap pressing the retaining pin) to ensure that the wheelchair may be folded neatly and also may be extended for use securely.
  • the invention has a rope anchoring mechanism located between the U-shaped handle tube and the connection plates.
  • the anchor pin When the wheelchair is extended, the anchor pin is wedged in the anchor hole to erect the backrest in the upright position.
  • the U-shaped handle tube When the wheelchair is folding, pull the rope to remove the anchor pin from the anchor hole, the U-shaped handle tube may be turned downwards for folding. It is convenient to use.
  • the invention further provides a U-shaped foot pedal on a lower section between the inner sides of the front U-shaped tube, and armrests on two sides of the U-shaped handle tube. Hence disabled people may sit on the portable folding wheelchair of the invention with great comfort as sitting on a rehabilitative wheelchair.
  • the portable folding wheelchair of the invention includes a seat frame 1 and a backrest 2.
  • the seat frame 1 includes a front U-shaped tube 3 and a rear U-shaped tube 4 coupling with each other in the middle section on two sides through a pin to form a X-shape from sideward.
  • the front U-shaped tube 3 and the rear U-shaped tube 4 have respectively an upward opening.
  • the rear U-shaped tube 4 has a lower end on two sides to couple with a rear wheel 5.
  • the front U-shaped tube 3 has an upper end on two sides to fasten to a connection plate 6.
  • the connection plate 6 connects to the backrest 2.
  • the front U-shaped tube 3 has a lower section on two sides to pivotally engage with an upright tube 7.
  • the upright tube 7 has a lower end coupling with a front wheel 8 which is the direction wheel.
  • the upright tube 7 and the rear U-shaped tube 4 have their upper ends bridged by a sleeve 9.
  • the sleeve 9 has a front end forming a notch 10.
  • the upper end of the upright tube 7 is pivotally engaged with the notch 10 through a pin.
  • the sleeve 9 has an opening 11 formed on a lower section in the longitudinal direction to allow the sleeve 9 to couple with the upper end of the rear U-shaped tube 4.
  • the two lateral sides of the middle section of the sleeve 9 have respectively a slot 12 to couple with a bolt 13 to engage with the rear U-shaped tube 4.
  • the outer side of the rear section of the sleeve 9 has a flap 14 extending outwards.
  • the rear U-shaped tube 4 has a retaining pin 15 corresponding to the flap 14.
  • the upper ends of the two upright tubes 7 are bridged by a front stretcher 16.
  • the two connection plates 6 are bridged by a rear stretcher 17.
  • the front stretcher 16 and the rear stretcher 17 are coupled with a seat canvas 18.
  • the seat canvas 18 has a rear end with a handle 19 attached thereon.
  • the backrest 2 includes a U-shaped handle tube 19 which has an opening directing downwards.
  • the U-shaped handle tube 19 is coupled with a transverse backrest canvas 20.
  • the U-shaped handle tube 19 has two sides each has a lower end pivotally engaging with the connection plate 6 through a pin.
  • the U-shaped handle tube 19 further has an anchor pin 21 located on a lower section on two sides.
  • the anchor pin 21 has a bigger head and screw threads formed on a rear section.
  • the two anchor pins 21 are coupled respectively with a spring 22, then run through the U-shaped handle tube 19 from outside to fasten to two ends of a rope 23.
  • the rope 23 has a steel core which is covered by a plastic tube on the outside.
  • the connection plate 6 has an anchor hole 24 located above the pivotal connection point of the pin of the U-shaped handle tube 19.
  • the head of the anchor pin 21 may be wedged in the anchor hole 24.
  • the two sides of the U-shaped handle tube 19 further have respectively a U-shaped dock 25 which has an opening directly forwards.
  • the U-shaped dock 25 has a lower section pivotally coupled with the U-shaped handle tube 19 through a pin.
  • the U-shaped dock 25 has an outer side to anchor an armrest 26.
  • the front U-shaped tube 3 has a lower section with inner sides to pivotally couple with a U-shaped foot pedal 27.
  • the U-shaped foot pedal 27 has an opening directing rearwards.
  • Most elements of the invention are pivotally coupled through pins and have anchor means for positioning and anchoring.
  • anchor means for folding, first, collapse and fold the front U-shaped tube 3 and the rear U-shaped tube 4 in the forward and rearward direction, then turn the U-shaped foot pedal 27 and the armrest 26 upwards, and finally turn the U-shaped handle tube 19 downwards to fold the whole wheelchair in a smaller size. Users can easily carry or put the folded wheelchair into a car through the handle 28 located on the rear end of the seat canvas 18.
  • the rear U-shaped tube 4 and the upright tube 7 are bridged by the sleeve 9 on the upper ends thereof.
  • the sleeve 9 provides an interval between the rear U-shaped tube 4 and the upright tube 7 to facilitate folding of the wheelchair. It also gives the rear U-shaped tube 4 an anchoring support after the wheelchair is extended (with the flap pressing the retaining pin) to ensure that the wheelchair may be folded neatly and also may be extended for use securely.
  • the invention has a rope anchoring mechanism located between the U-shaped handle tube 19 and the connection plates 6.
  • the anchor pin 21 When the wheelchair is extended, the anchor pin 21 is wedged in the anchor hole 24 to erect the backrest 2 in the upright position.
  • the U-shaped handle tube 19 When the wheelchair is folding, pull the rope 23 to remove the anchor pin 21 from the anchor hole 24, the U-shaped handle tube 19 may be turned downwards for folding. It is convenient to use.
  • the invention provides a U-shaped foot pedal 27 on a lower section between the inner sides of the front U-shaped tube 3 and armrests 26 on two sides of the U-shaped handle tube 19. Hence disabled people may sit on the portable folding wheelchair of the invention with great comfort as sitting on a rehabilitative wheelchair.

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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)
  • Rehabilitation Tools (AREA)
  • Hybrid Cells (AREA)

Abstract

A portable folding wheelchair includes a front U-shaped tube and a rear U-shaped tube pivotally coupling with each other through a pin to form a X-shape. The front U-shaped tube has an upper end on two sides to fasten to a connection plate. The connection plate connects to a backrest. The front U-shaped tube has a lower section on two sides to pivotally engage with an upright tube. The upright tube and the rear U-shaped tube have an upper end bridging a sleeve. The wheelchair has a simple structure and may be folded in forward, rearward, upward and downward directions to become a smaller size to facilitate carrying or storing in a car to enable disabled people to use in travels and trips. <IMAGE>

Description

  • The invention relates to a rehabilitative wheelchair.
  • With increasing advances of social welfare and people's living standards, more and more disabled people use rehabilitative wheelchairs. They offer great conveniences to the indoor and outdoor activities of the disabled people, and improve life quality of the disabled people. However, the wheelchairs now on the market are quite bulky. Although most of the wheelchairs have folding structures, they usually are for folding in the left and right directions. After folding, the size is still very big, and is not portable or difficult to carry with hands or by cars. It becomes a big constraint for the disabled people in travel or trip.
  • The German utility model G 88 16 133.1 discloses foldable wheelchair which comprises four driving rollers that are affixed to two support frames which form an "X" in the unfolded state and are connected by a bolt. The two support frames support a seat frame which is covered by a canvas. The wheelchair further comprises a foldable backrest which comprises a backrest frame which is covered by a canvas.
  • The object of the invention is to provide a portable folding wheelchair that may be carried easily with hands or by cars to enable disabled people to use the wheelchair conveniently in travels and trips anytime and anywhere.
  • This object is achieved by the subject matter of claim 1.
  • Preferred embodiments are the subject matters of the dependent claims.
  • The invention provides the following advantages:
  • Most elements of the invention are pivotally coupled through pins and have anchor means for positioning and anchoring. For folding, first, collapse and fold the front U-shaped tube and the rear U-shaped tube in the forward and rearward direction, then turn the U-shaped foot pedal and the armrest upwards, and finally turn the U-shaped handle tube downwards to fold the whole wheelchair in a smaller size. Users can easily carry or put the folded wheelchair into a car through the handle located on the rear end of the seat canvas.
  • The rear U-shaped tube and the upright tube are bridged by a sleeve on the upper ends thereof. The sleeve provides an interval between the rear U-shaped tube and the upright tube to facilitate folding of the wheelchair. It also gives the rear U-shaped tube an anchoring support after the wheelchair is extended (with the flap pressing the retaining pin) to ensure that the wheelchair may be folded neatly and also may be extended for use securely.
  • The invention has a rope anchoring mechanism located between the U-shaped handle tube and the connection plates. When the wheelchair is extended, the anchor pin is wedged in the anchor hole to erect the backrest in the upright position. When the wheelchair is folding, pull the rope to remove the anchor pin from the anchor hole, the U-shaped handle tube may be turned downwards for folding. It is convenient to use.
  • The invention further provides a U-shaped foot pedal on a lower section between the inner sides of the front U-shaped tube, and armrests on two sides of the U-shaped handle tube. Hence disabled people may sit on the portable folding wheelchair of the invention with great comfort as sitting on a rehabilitative wheelchair.
  • In the following, preferred embodiments will be described referring to the accompanying drawings:
    • FIG.1 is a perspective view of the invention.
    • FIG.2 is a schematic view of the invention after folding.
    • FIG. 3 is an exploded view of the backrest of the invention.
  • Referring to FIGS. 1, 2 and 3, the portable folding wheelchair of the invention includes a seat frame 1 and a backrest 2. The seat frame 1 includes a front U-shaped tube 3 and a rear U-shaped tube 4 coupling with each other in the middle section on two sides through a pin to form a X-shape from sideward. The front U-shaped tube 3 and the rear U-shaped tube 4 have respectively an upward opening. The rear U-shaped tube 4 has a lower end on two sides to couple with a rear wheel 5. The front U-shaped tube 3 has an upper end on two sides to fasten to a connection plate 6. The connection plate 6 connects to the backrest 2. The front U-shaped tube 3 has a lower section on two sides to pivotally engage with an upright tube 7. The upright tube 7 has a lower end coupling with a front wheel 8 which is the direction wheel. The upright tube 7 and the rear U-shaped tube 4 have their upper ends bridged by a sleeve 9. The sleeve 9 has a front end forming a notch 10. The upper end of the upright tube 7 is pivotally engaged with the notch 10 through a pin. The sleeve 9 has an opening 11 formed on a lower section in the longitudinal direction to allow the sleeve 9 to couple with the upper end of the rear U-shaped tube 4. The two lateral sides of the middle section of the sleeve 9 have respectively a slot 12 to couple with a bolt 13 to engage with the rear U-shaped tube 4. The outer side of the rear section of the sleeve 9 has a flap 14 extending outwards. The rear U-shaped tube 4 has a retaining pin 15 corresponding to the flap 14. The upper ends of the two upright tubes 7 are bridged by a front stretcher 16. The two connection plates 6 are bridged by a rear stretcher 17. The front stretcher 16 and the rear stretcher 17 are coupled with a seat canvas 18. The seat canvas 18 has a rear end with a handle 19 attached thereon. The backrest 2 includes a U-shaped handle tube 19 which has an opening directing downwards. The U-shaped handle tube 19 is coupled with a transverse backrest canvas 20. The U-shaped handle tube 19 has two sides each has a lower end pivotally engaging with the connection plate 6 through a pin. The U-shaped handle tube 19 further has an anchor pin 21 located on a lower section on two sides. The anchor pin 21 has a bigger head and screw threads formed on a rear section. The two anchor pins 21 are coupled respectively with a spring 22, then run through the U-shaped handle tube 19 from outside to fasten to two ends of a rope 23. The rope 23 has a steel core which is covered by a plastic tube on the outside. The connection plate 6 has an anchor hole 24 located above the pivotal connection point of the pin of the U-shaped handle tube 19. The head of the anchor pin 21 may be wedged in the anchor hole 24. The two sides of the U-shaped handle tube 19 further have respectively a U-shaped dock 25 which has an opening directly forwards. The U-shaped dock 25 has a lower section pivotally coupled with the U-shaped handle tube 19 through a pin. The U-shaped dock 25 has an outer side to anchor an armrest 26. The front U-shaped tube 3 has a lower section with inner sides to pivotally couple with a U-shaped foot pedal 27. The U-shaped foot pedal 27 has an opening directing rearwards.
  • Most elements of the invention are pivotally coupled through pins and have anchor means for positioning and anchoring. For folding, first, collapse and fold the front U-shaped tube 3 and the rear U-shaped tube 4 in the forward and rearward direction, then turn the U-shaped foot pedal 27 and the armrest 26 upwards, and finally turn the U-shaped handle tube 19 downwards to fold the whole wheelchair in a smaller size. Users can easily carry or put the folded wheelchair into a car through the handle 28 located on the rear end of the seat canvas 18.
  • In addition, the rear U-shaped tube 4 and the upright tube 7 are bridged by the sleeve 9 on the upper ends thereof. The sleeve 9 provides an interval between the rear U-shaped tube 4 and the upright tube 7 to facilitate folding of the wheelchair. It also gives the rear U-shaped tube 4 an anchoring support after the wheelchair is extended (with the flap pressing the retaining pin) to ensure that the wheelchair may be folded neatly and also may be extended for use securely.
  • Moreover, the invention has a rope anchoring mechanism located between the U-shaped handle tube 19 and the connection plates 6. When the wheelchair is extended, the anchor pin 21 is wedged in the anchor hole 24 to erect the backrest 2 in the upright position. When the wheelchair is folding, pull the rope 23 to remove the anchor pin 21 from the anchor hole 24, the U-shaped handle tube 19 may be turned downwards for folding. It is convenient to use.
  • Furthermore, the invention provides a U-shaped foot pedal 27 on a lower section between the inner sides of the front U-shaped tube 3 and armrests 26 on two sides of the U-shaped handle tube 19. Hence disabled people may sit on the portable folding wheelchair of the invention with great comfort as sitting on a rehabilitative wheelchair.

Claims (5)

  1. A portable folding wheelchair comprising a seat frame (1) and a backrest (2), wherein the seat frame (1) includes a front U-shaped tube (3) and a rear U-shaped tube (4) coupling with each other in a middle section on two sides through a pin to form a X-shape from sideward, the front U-shaped tube (3) and the rear U-shaped tube (4) having respectively an upward opening, the rear U-shaped tube having a lower end on two sides to couple with a rear wheel (5), the front U-shaped tube (3) having an upper end on two sides to fasten to a connection plate (6), the connection plate (6) connecting to the backrest (2), the portable folding wheelchair comprising a front wheel and a seat canvas (18),
    characterized in that
    the front U-shaped tube (3) has a lower section on two sides to pivotally engage with an upright tube (7), the upright tube (7) having a lower end coupling with the front wheel (8), the upright tube (7) and the rear U-shaped tube (4) having their upper ends bridged by a sleeve (9), the sleeve having a front end forming a notch (10), the upright tube (7) having an upper end pivotally engaging with the notch (10) through a pin, the sleeve (9) further having an opening formed on a lower section in the longitudinal direction to allow the sleeve (9) to couple with the upper end of the rear U-shaped tube (4), the sleeve having two lateral sides on a middle section to form respectively a slot (12) to couple with a bolt (13) to engage with the rear U-shaped tube (4), the sleeve further having a flap (14) extending outwards from an outer side on a rear section thereof, the rear U-shaped tube (4) having a retaining pin (15) corresponding to the flap (14), the upper ends of the two upright tubes being bridged by a front stretcher (16), the two connection plates being bridged by a rear stretcher (17), the front stretcher (16) and the rear stretcher (17) being coupled with the seat canvas (18).
  2. The portable folding wheelchair of claim 1, wherein the backrest (2) includes a U-shaped handle tube (19) which has an opening directing downwards, the U-shaped handle tube (19) being coupled with a transverse backrest canvas (20), the U-shaped handle tube having two sides each has a lower end pivotally engaging with the connection plate (6) through a pin, the U-shaped handle tube further having an anchor pin (21) located on a lower section on two sides, the anchor pin (21) having a bigger head and screw threads formed on a rear section, the two anchor pins being coupled respectively with a spring (22) and running through the U-shaped handle tube (19) from outside to fasten to two ends of a rope (23), the connection plate having an anchor hole (24) located above the pivotal connection point of the pin of the U-shaped handle tube, the head of the anchor pin (21) being allowed to wedge in the anchor hole (24).
  3. The portable folding wheelchair of claim 1 or 2, wherein two sides of the U-shaped handle tube (19) are fastened respectively to a U-shaped dock (25) which has an opening directing forwards, the U-shaped dock (25) having a lower section pivotally coupled with the U-shaped handle tube through a pin, the U-shaped dock having an outer side to anchor an armrest (26).
  4. The portable folding wheelchair of one of claims 1 to 3, wherein the front U-shaped tube (3) has a lower section with inner sides pivotally coupling with a U-shaped foot pedal (27), the U-shaped foot pedal having an opening directing rearwards.
  5. The portable folding wheelchair of one of claims 1 to 4, wherein the seat canvas (18) has a rear end attaching to a handle (28).
EP03005814A 2002-06-28 2003-03-14 Portable folding wheelchair Expired - Lifetime EP1374818B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN02262744U 2002-06-28
CN02262744U CN2557121Y (en) 2002-06-28 2002-06-28 Portable folding wheelchair

Publications (2)

Publication Number Publication Date
EP1374818A1 EP1374818A1 (en) 2004-01-02
EP1374818B1 true EP1374818B1 (en) 2006-11-29

Family

ID=4784161

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03005814A Expired - Lifetime EP1374818B1 (en) 2002-06-28 2003-03-14 Portable folding wheelchair

Country Status (5)

Country Link
EP (1) EP1374818B1 (en)
CN (1) CN2557121Y (en)
AT (1) ATE346577T1 (en)
DE (1) DE60309971T2 (en)
ES (1) ES2278086T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009155323A2 (en) * 2008-06-17 2009-12-23 Hanson Wayne H Multifunctional foldable mobility base

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1297246C (en) * 2004-04-23 2007-01-31 李茂顺 Folding wheel chair with adjustable elevation angle
DE102004036168A1 (en) * 2004-07-26 2006-03-23 Interco Gesellschaft Für Die Planung Und Den Vertrieb Von Reha Hilfen Mbh Wheelchair frame
CN106074028B (en) * 2016-07-11 2018-03-20 浙江英洛华康复器材有限公司 Foldable electric wheeled chair
CN107137185A (en) * 2017-05-31 2017-09-08 常州高尔登科技有限公司 Folding wheel chair and its locking device
CN107485495A (en) * 2017-09-20 2017-12-19 安徽名之工业设计有限公司 A kind of first-aid stretcher cart
CN109464241A (en) * 2018-11-05 2019-03-15 上海威之群机电制品有限公司 A kind of lightweight wheelchair skeleton fold mechanism
CN110302018B (en) * 2019-05-08 2021-07-20 东莞威信运动用品有限公司 Folding wheelchair frame

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GB635530A (en) * 1948-04-28 1950-04-12 Evertaut Ltd Improvements in folding or collapsible chairs or seats
US2793681A (en) * 1955-06-02 1957-05-28 Colson Corp Collapsible wheel chair
DE8816133U1 (en) * 1988-12-28 1989-04-20 Gröning, Uwe, Dipl.-Ing. wheelchair
US5720525A (en) * 1997-02-03 1998-02-24 Excell, Inc. Vehicle seat with anti-rattle arm rest
JP3888661B2 (en) * 2000-08-30 2007-03-07 シナネン株式会社 Portable wheelchair

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009155323A2 (en) * 2008-06-17 2009-12-23 Hanson Wayne H Multifunctional foldable mobility base
WO2009155323A3 (en) * 2008-06-17 2010-04-01 Hanson Wayne H Multifunctional foldable mobility base

Also Published As

Publication number Publication date
CN2557121Y (en) 2003-06-25
DE60309971T2 (en) 2007-09-20
DE60309971D1 (en) 2007-01-11
ES2278086T3 (en) 2007-08-01
EP1374818A1 (en) 2004-01-02
ATE346577T1 (en) 2006-12-15

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