EP0776646A1 - Wheelchair - Google Patents
Wheelchair Download PDFInfo
- Publication number
- EP0776646A1 EP0776646A1 EP96909407A EP96909407A EP0776646A1 EP 0776646 A1 EP0776646 A1 EP 0776646A1 EP 96909407 A EP96909407 A EP 96909407A EP 96909407 A EP96909407 A EP 96909407A EP 0776646 A1 EP0776646 A1 EP 0776646A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- frame
- wheelchair
- pieces
- fork
- pillars
- 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- Withdrawn
Links
Images
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
- A61G5/1056—Arrangements for adjusting the seat
- A61G5/1062—Arrangements for adjusting the seat adjusting the width of the seat
-
- 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
- A61G5/0866—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable folding down backrest, e.g. where the backrest folds down onto the seat support
-
- 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
- A61G5/1083—Quickly-removable wheels
-
- 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
- A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
- A61G5/125—Rests specially adapted therefor, e.g. for the head or the feet for arms
-
- 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
- A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
- A61G5/128—Rests specially adapted therefor, e.g. for the head or the feet for feet
Definitions
- the present invention relates to construction of invalid wheelchairs intended for moving disabled persons with disturbed motor functions of the lower limbs.
- One state-of-the-art invalid wheelchair is known to comprise an upholstered folding back, elbow rests, a seat, driving wheels, front wheels carrying the fork, and a footboard (GB Patent # 1,339,992, Cl. B62D 57/02, 1973).
- the known invalid wheelchair suffers from too a sophisticated construction, an increased weight of the frame, and is inconvenient in use.
- the invention has for its principal object to simplify the construction of the proposed invalid wheelchair and to render its use more convenient.
- the wheelchair has bracing struts, pitmans, sockets connected to the frame and accommodating sleeves with a spring-actuated button which has a recess on its inner surface, while the frame is made up of two pieces transversely interconnected through bracing struts and adapted for adjusting the seat for width;
- the back comprises two pillars articulated to the top surface of each of the frame pieces and spaced apart transversely from each other, said pillars being interconnected through bracers;
- the upholstery is arranged on the surface of the pillars that faces the seat;
- the pitmans are articulately mounted on the top surface of each of the frame pieces, while the pitman and the pillar of each of the frame pieces are connected to the elbow rest so as to establish a parallel crank motion;
- the fork axle is associated with the sleeve through a retainer which comprises solids of revolution arranged in an annular groove provided in the fork axle and in the holes of the sleeve, and the spring-actuated button is adapted
- the wheelchair be provided with guards located on the frame pieces and the pillars of the back and made of an elastic material.
- sockets be connected to the frame by means of straps. It is necessary that the struts, pitmans, elbow rests, frame pieces, and pillars be made of light alloys, plastics, or composite materials.
- the invalid wheelchair proposed herein comprises a frame 1 which carries a folding back 2 provided with an upholstery 3, elbow rests 4, a seat 5, driving wheels 6, front wheels 7 carrying a fork 8, and a footboard 9 (FIG.1).
- the wheelchair has bracing struts 10, pitmans 11, sockets 12 connected to the frame 1 and accommodating sleeves 13 with a spring-actuated button 14 which has a recess 15 on its inner surface (FIGS.1, 2).
- the frame 1 is made up of two pieces 16 transversely interconnected through the bracing struts 10 and adapted for adjusting the seat 5 for width;
- the back 2 comprises two pillars 17 articulated to the top surface of each of the pieces 16 of the frame 1 and spaced apart transversely from each other, said pillars being interconnected through bracing struts 10.
- the upholstery 3 is arranged on the surface of the pillars 17 that faces the seat 5, while the pitmans 11 are articulately mounted on the top surface of each of the pieces 16 of the frame 1.
- the pitman 11 and the pillar 17 of each of the pieces 16 of the frame 1 are connected to the elbow rest 4 so as to establish a parallel crank motion (FIG.1).
- An axle 18 of the fork 8 in associated with the sleeve 13 through a retainer which comprises solids 19 of revolution arranged in an annular groove 20 provided in the axle 18 of the fork 8 and in the holes of the sleeve 13, and the spring-actuated button 14 is adapted to cover the holes which accommodate the solids 19 of revolution so that the latter engage the recess 15 in the button 14 (FIG.2) when the latter is moving.
- the wheelchair is provided with guards 21 located on the pieces 16 of the frame 1 and on the pillars 17 of the back 2, said guards being made of an elastic material.
- the sockets 12 are connected to the frame 1 by means of straps 22 (FIG.2).
- the elbow rests 4, struts 10, the pitmans 11, the pieces 16 of the frame 1, and the pillars 17 are made of light alloys, plastics, or composite materials.
- the wheelchair has also springs 23 and bearings 24. Annular grooves 25 (FIG.2) are provided for the straps 22.
- the pieces 16 of the frame 1 are similar in shape and size and feature an equally strong open thin-walled profile.
- Provision of the wheelchair construction elements made of light alloys, plastics, or composite materials and manufactured by the casting or moulding technique helps reduce labor consumption required for wheelchair manufacture and produce a lighter, adequately rigid and cheap wheelchair construction.
- the bracing struts 10 are unequal in length, whereby the structural dimensions of the wheelchair can be varied so as to use it in both child and adult versions.
- the button 14 is let to move down so that the recess 15 be opposite to the solids 19 of revolution (i.e., balls).
- the button 14 is lowered and the axle 18 of the fork 8 is fitted into the sleeve 13 until the axle rests against the sleeve end.
- the button 14 is released, with the result that the edge of the recess 15 forces the solids 19 of revolution from the sleeve 15 into annular groove 20.
- the button 14 locks the solids 19 of revolution, thus preventing them from disengaging the annular groove 20 in case of inadvertent pulling down of the axle 18.
- the user travels on the wheelchair by rotating manually the driving wheels 6.
- the invention simplifies the construction of wheelchair and renders its use more convenient.
- the invention can find application in the manufacture of invalid wheelchairs.
Landscapes
- 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)
- Prostheses (AREA)
Abstract
Description
- The present invention relates to construction of invalid wheelchairs intended for moving disabled persons with disturbed motor functions of the lower limbs.
- One state-of-the-art invalid wheelchair is known to comprise an upholstered folding back, elbow rests, a seat, driving wheels, front wheels carrying the fork, and a footboard (GB Patent # 1,339,992, Cl. B62D 57/02, 1973).
- The known invalid wheelchair suffers from too a sophisticated construction, an increased weight of the frame, and is inconvenient in use.
- The invention has for its principal object to simplify the construction of the proposed invalid wheelchair and to render its use more convenient.
- The essence of the present invention resides in that the wheelchair has bracing struts, pitmans, sockets connected to the frame and accommodating sleeves with a spring-actuated button which has a recess on its inner surface, while the frame is made up of two pieces transversely interconnected through bracing struts and adapted for adjusting the seat for width; the back comprises two pillars articulated to the top surface of each of the frame pieces and spaced apart transversely from each other, said pillars being interconnected through bracers; the upholstery is arranged on the surface of the pillars that faces the seat; the pitmans are articulately mounted on the top surface of each of the frame pieces, while the pitman and the pillar of each of the frame pieces are connected to the elbow rest so as to establish a parallel crank motion; the fork axle is associated with the sleeve through a retainer which comprises solids of revolution arranged in an annular groove provided in the fork axle and in the holes of the sleeve, and the spring-actuated button is adapted to cover the holes which accommodate the solids of revolution so that the latter engage the recess in the button when the latter is moving.
- It is expedient that the wheelchair be provided with guards located on the frame pieces and the pillars of the back and made of an elastic material.
- It is likewise expedient that the sockets be connected to the frame by means of straps. It is necessary that the struts, pitmans, elbow rests, frame pieces, and pillars be made of light alloys, plastics, or composite materials.
- Practical application of the invention will help simplify the wheelchair construction and render its use more convenient.
- In what follows the present invention is explained in the disclosure of exemplary embodiments thereof given by way of illustration to be taken in conjunction with the accompanying drawings, wherein:
- FIG.1 is a general view of the invalid wheelchair, according to the invention;
- FIG.2 is a section taken on the line A-A, according to the invention;
- FIG.3 is a section taken on the line B-B according to the invention;
- FIG.4 is a section taken on the line C-C according to the invention;
- FIG.5 is a section taken on the line D-D according to the invention;
- FIG.6 is a section taken on the line E-E according to the invention; and
- FIG.7 is a section taken on the line F-F according to the invention.
- The invalid wheelchair proposed herein comprises a frame 1 which carries a folding
back 2 provided with anupholstery 3,elbow rests 4, aseat 5,driving wheels 6, front wheels 7 carrying afork 8, and a footboard 9 (FIG.1). - The wheelchair has bracing struts 10, pitmans 11,
sockets 12 connected to the frame 1 and accommodatingsleeves 13 with a spring-actuatedbutton 14 which has arecess 15 on its inner surface (FIGS.1, 2). - The frame 1 is made up of two
pieces 16 transversely interconnected through the bracing struts 10 and adapted for adjusting theseat 5 for width; theback 2 comprises twopillars 17 articulated to the top surface of each of thepieces 16 of the frame 1 and spaced apart transversely from each other, said pillars being interconnected through bracing struts 10. - The
upholstery 3 is arranged on the surface of thepillars 17 that faces theseat 5, while the pitmans 11 are articulately mounted on the top surface of each of thepieces 16 of the frame 1. - The pitman 11 and the
pillar 17 of each of thepieces 16 of the frame 1 are connected to theelbow rest 4 so as to establish a parallel crank motion (FIG.1). - An
axle 18 of thefork 8 in associated with thesleeve 13 through a retainer which comprisessolids 19 of revolution arranged in anannular groove 20 provided in theaxle 18 of thefork 8 and in the holes of thesleeve 13, and the spring-actuatedbutton 14 is adapted to cover the holes which accommodate thesolids 19 of revolution so that the latter engage therecess 15 in the button 14 (FIG.2) when the latter is moving. - The wheelchair is provided with
guards 21 located on thepieces 16 of the frame 1 and on thepillars 17 of theback 2, said guards being made of an elastic material. - The
sockets 12 are connected to the frame 1 by means of straps 22 (FIG.2). - The elbow rests 4, struts 10, the pitmans 11, the
pieces 16 of the frame 1, and thepillars 17 are made of light alloys, plastics, or composite materials. - The wheelchair has also springs 23 and
bearings 24. Annular grooves 25 (FIG.2) are provided for the straps 22. - Provision is also made in the wheelchair proposed herein for
hinge joints strips 28,screws 29,nuts 30,screws 31, anut 32, and seat upholstery 33 (FIGS.3-7). - The
pieces 16 of the frame 1 are similar in shape and size and feature an equally strong open thin-walled profile. - Provision of the wheelchair construction elements made of light alloys, plastics, or composite materials and manufactured by the casting or moulding technique helps reduce labor consumption required for wheelchair manufacture and produce a lighter, adequately rigid and cheap wheelchair construction.
- The bracing struts 10 are unequal in length, whereby the structural dimensions of the wheelchair can be varied so as to use it in both child and adult versions.
- Use of elastic materials for the
guards 21 and the foldingback 2, as well as provision of the quick-to-removedriving wheels 6 and the front wheels 7 enables the wheelchair to be rapidly and conveniently folded down to minimum overall dimensions for transportation. - Use of the proposed wheelchair is made as follows.
- To remove the front wheel 7 together with the
fork 8, thebutton 14 is let to move down so that therecess 15 be opposite to thesolids 19 of revolution (i.e., balls). - Then the
fork 8 is pulled down while keeping thebutton 14 in position, with the result that the edge of theannular groove 20 forces thesolids 19 of revolution into therecess 15, thus releasing theaxle 18 of thefork 8 for its being extracted from thesleeve 13, whereupon thebutton 14 is released. - For the front wheel 7 to be reinstalled on the frame 1, the
button 14 is lowered and theaxle 18 of thefork 8 is fitted into thesleeve 13 until the axle rests against the sleeve end. Next thebutton 14 is released, with the result that the edge of therecess 15 forces thesolids 19 of revolution from thesleeve 15 intoannular groove 20. While moving further thebutton 14 locks thesolids 19 of revolution, thus preventing them from disengaging theannular groove 20 in case of inadvertent pulling down of theaxle 18. - The user travels on the wheelchair by rotating manually the
driving wheels 6. - Thus, the invention simplifies the construction of wheelchair and renders its use more convenient.
- The invention can find application in the manufacture of invalid wheelchairs.
Claims (4)
- An invalid wheelchair, comprising a frame (1) carrying a folded back (2) provided with an upholstery (3), elbow rests (4), a seat (5), driving wheels (6), front wheels (7) carrying a fork (8) and a footboard (9), CHARACTERIZED in that it has bracing struts (10), pitmans (11), sockets (12) connected to the frame (1) and accommodating sleeves (13) with a spring-actuated button (14) which has a recess (15) on its inner surface, while the frame is made up of two pieces (16) transversely interconnected through the bracing struts (10) and adapted for adjusting the seat (5) for width; the back (2) comprises two pillars (17) articulated to the top surface of each of the pieces (16) of the frame (1) and spaced apart transversely from each other, said pillars being interconnected through the bracing struts (10); the upholstery (3) is arranged on the surface of the pillars (17) that faces the seat (5); the pitmans (11) are articulately mounted on the top surface of each of the pieces (16) of the frame (1), while the pitman (11) and the pillar (17) of each of the pieces (16) of the frame (1) are connected to the elbow rest (4) so as to establish a parallel crank motion; the axle (18) of the fork (8) is associated with the sleeve (13) through a retainer which comprises solids (19) of revolution arranged in an annular groove (20) provided in the axle (18) of the fork (8) and in holes of the sleeve (13), and the spring-actuated button (14) is adapted to cover the holes which accommodate the solids (19) of revolution so that the latter could engage the recess (15) in the button (14) when the latter is moving.
- A wheelchair as set forth in claim 1, CHARACTERIZED in that it has guards (21) located on the pieces (16) of the frame (1) and on the pillars (17) of the back (2) and made of an elastic material.
- A wheelchair as set forth in claim 1, CHARACTERIZED in that the sockets (12) are connected to the frame (1) by means of straps (22).
- A wheelchair as set forth in claims 1 through 3, CHARACTERIZED in that the elbow rests (4), the bracing struts (10), the pitmans (11), the pieces (16) of the frame (1), and pillars (17) are made of light alloys, plastics, or composite materials.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU9595109414A RU2074832C1 (en) | 1995-06-21 | 1995-06-21 | Invalid chair |
RU95109414 | 1995-06-21 | ||
PCT/RU1996/000073 WO1997000657A1 (en) | 1995-06-21 | 1996-03-29 | Wheelchair |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0776646A1 true EP0776646A1 (en) | 1997-06-04 |
EP0776646A4 EP0776646A4 (en) | 1999-07-28 |
Family
ID=20168628
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96909407A Withdrawn EP0776646A4 (en) | 1995-06-21 | 1996-03-29 | Wheelchair |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0776646A4 (en) |
CN (1) | CN1143665C (en) |
BR (1) | BR9606476A (en) |
DE (1) | DE776646T1 (en) |
RU (1) | RU2074832C1 (en) |
WO (1) | WO1997000657A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2841462A1 (en) | 2002-06-26 | 2004-01-02 | Herve Macke | Lightweight wheelchair has attachable module with single steerable wheel and two arms for converting it to all-terrain use |
CN103083149B (en) * | 2011-11-08 | 2015-09-09 | 董兰田 | Facilitate the fully collapsible invalid's chair of location swap between patient bed and wheelchair |
CN104161628B (en) * | 2014-08-14 | 2016-08-24 | 太仓市康辉科技发展有限公司 | A kind of folding moving vehicle |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4025088A (en) * | 1976-04-13 | 1977-05-24 | Rothschild Barbara G | Folding wheelchair |
US5076390A (en) * | 1990-07-03 | 1991-12-31 | Haskins John T | Multiple mode wheelchair construction |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE458502B (en) * | 1984-04-19 | 1989-04-10 | Torgny Jan Ab Jatab | SEAT AND WHEELCHAIR HANDLES TO HANDLE A PERSON WITH LIMITED MOBILITY |
US4840390A (en) * | 1986-09-30 | 1989-06-20 | Invacare Corporation | Symmetrically modular wheelchair |
GB2238275B (en) * | 1989-11-24 | 1993-09-15 | E W Marshall & Son Ltd | Wheel chairs |
-
1995
- 1995-06-21 RU RU9595109414A patent/RU2074832C1/en active
-
1996
- 1996-03-29 CN CNB961907738A patent/CN1143665C/en not_active Expired - Fee Related
- 1996-03-29 EP EP96909407A patent/EP0776646A4/en not_active Withdrawn
- 1996-03-29 DE DE0776646T patent/DE776646T1/en active Pending
- 1996-03-29 WO PCT/RU1996/000073 patent/WO1997000657A1/en not_active Application Discontinuation
- 1996-03-29 BR BR9606476A patent/BR9606476A/en not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4025088A (en) * | 1976-04-13 | 1977-05-24 | Rothschild Barbara G | Folding wheelchair |
US5076390A (en) * | 1990-07-03 | 1991-12-31 | Haskins John T | Multiple mode wheelchair construction |
Non-Patent Citations (1)
Title |
---|
See also references of WO9700657A1 * |
Also Published As
Publication number | Publication date |
---|---|
RU2074832C1 (en) | 1997-03-10 |
CN1158080A (en) | 1997-08-27 |
CN1143665C (en) | 2004-03-31 |
DE776646T1 (en) | 1998-01-02 |
BR9606476A (en) | 1997-11-18 |
EP0776646A4 (en) | 1999-07-28 |
WO1997000657A1 (en) | 1997-01-09 |
RU95109414A (en) | 1996-12-10 |
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Legal Events
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