WO2008035978A1 - Device and method for adjusting a wheelchair leg rest - Google Patents

Device and method for adjusting a wheelchair leg rest Download PDF

Info

Publication number
WO2008035978A1
WO2008035978A1 PCT/NO2007/000308 NO2007000308W WO2008035978A1 WO 2008035978 A1 WO2008035978 A1 WO 2008035978A1 NO 2007000308 W NO2007000308 W NO 2007000308W WO 2008035978 A1 WO2008035978 A1 WO 2008035978A1
Authority
WO
WIPO (PCT)
Prior art keywords
link
supporting column
locking
adjustment holes
wheelchair
Prior art date
Application number
PCT/NO2007/000308
Other languages
French (fr)
Inventor
Morten Sagstuen
Arne Dalsveen
Original Assignee
Handicare Produksjon As
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 Handicare Produksjon As filed Critical Handicare Produksjon As
Priority to JP2009529140A priority Critical patent/JP2010503511A/en
Priority to EP07808622.0A priority patent/EP2063847B1/en
Priority to US12/441,951 priority patent/US20100007189A1/en
Publication of WO2008035978A1 publication Critical patent/WO2008035978A1/en

Links

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
    • A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
    • 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
    • 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 a device and method for adjusting a wheelchair leg rest. More, specifically, the invention relates to a device and a method as disclosed respectively in the preambles of claims 1 and 8.
  • the device according to the invention is an improvement of an existing known solution, and can far more easily be adjusted to the needs of different users as regards adjustment of the leg angle of the leg rest.
  • this is often solved by offering different leg rests mounted at fixed angles. This means that the whole leg rest must be changed in order to change the desired angle.
  • Legs rests that give fixed angles of 70°, 80° or 90°, measured from the horizontal plane down to the leg rest (see Fig. 1), are often used.
  • the toothed rack is intended to cooperate with a locking device that is fixed to the other parts of the wheelchair, and the locking device comprises a mechanism in the form of teeth or the like for engagement with the teeth on the toothed rack, and also a mechanism for side shifting the toothed rack so that it disengages from the teeth in the locking device.
  • the locking device comprises a mechanism in the form of teeth or the like for engagement with the teeth on the toothed rack, and also a mechanism for side shifting the toothed rack so that it disengages from the teeth in the locking device.
  • the desired angle for the rest can be adjusted in steps, and once the desired angle has been found, the locking mechanism effects side shifting of the toothed rack so that it reengages with the teeth in the locking device.
  • Fig. 1 shows different leg rests with fixed angles according to the prior art
  • Fig. 2 shows an angle-adjustable leg rest according to the invention set at different angles
  • Fig. 3 shows the leg rest in Fig. 2 mounted on a wheelchair and set at different angles
  • Fig. 4 is a perspective detailed view of the leg rest and the wheelchair shown in Fig. 3.
  • FIG. 2-4 there is shown a device 1 for adjusting the leg rest of a wheelchair in accordance with the present invention.
  • the device 1 comprises a supporting column 2 to the upper end 3 of which is attached a forward, upper part 4 of a wheelchair and to the lower end 5 of which is attached a footrest 6.
  • the supporting column 2 further comprises an upper 2' and a lower 2' ' part which are hinge-connected at a link 7.
  • a first, preferably circular-arc-shaped part 8 having a plurality of adjustment holes 9 arranged along a circular arc with origo at the pivotal point of the link 7.
  • a second, preferably circular- arc-shaped part 11 for locking cooperation with the first part 8, a plurality of adjustment holes 9 also being provided in the second part 11 along a similar circular arc as for the first part 8, and where the locking advantageously is effected by a bolt 12 passed through two adjustment holes 9 on their respective parts 8, 11 aligned with each other by turning the lower part 2' ' of the supporting column 2 about the link 7, and where the bolt is locked with a nut 13.
  • the angle adjustment of the device 1, as can be seen, is not stepless, but has predetermined angles of, for example, 70°, 80° or 90°, measured from a horizontal plane through the link 7 and down to the second part 2' ' of the supporting column 2. This can be seen in particular from Figure 2. Thus, fixed, predefined angles for a user's leg are obtained.
  • the locking bolt 12 is locked in threads provided in the adjustment holes 9 instead of using a locking nut 13.
  • the link 7 is arranged at the junction between the forward, upper part of the wheelchair 4 and the supporting column 2.
  • the aforementioned directional indications "upper”, “lower”, “forward” etc. are merely intended for descriptive purposes, and should by no means be regarded as limiting for the invention.

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)
  • Holders For Apparel And Elements Relating To Apparel (AREA)
  • Passenger Equipment (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Invalid Beds And Related Equipment (AREA)

Abstract

A device (1) for adjusting a wheelchair leg rest, comprising a supporting column (2) to the upper end (3) of which is attached a forward, upper part (4) of a wheelchair and to the lower end (5) of which is attached a footrest (6), wherein at least a lower part (2') of the supporting column (2) is hinge-connected at a link (7), and where to the lower part (2') of the supporting column (2), at a distance from the link (7), there is attached a first, preferably circular-arc-shaped part (8) having a plurality of adjustment holes (9) arranged along a circular arc with origo at the pivotal point of the link (7), and where to a forward, lower part (10) of the wheelchair there is attached a second, preferably circular-arc-shaped part (11) for locking cooperation with the first part (8), a plurality of adjustment holes (9) also being provided on the second part (11) along a similar circular arc as for the first part (8), and where the locking advantageously is effected by a locking bolt (12) passed through two adjustment holes (9) on their respective parts (8, 11) aligned with each other by turning the lower part (2') of the supporting column (2) about the link (7).

Description

Device and method for adjusting a wheelchair leg rest
The present invention relates to a device and method for adjusting a wheelchair leg rest. More, specifically, the invention relates to a device and a method as disclosed respectively in the preambles of claims 1 and 8.
The device according to the invention is an improvement of an existing known solution, and can far more easily be adjusted to the needs of different users as regards adjustment of the leg angle of the leg rest. Traditionally, this is often solved by offering different leg rests mounted at fixed angles. This means that the whole leg rest must be changed in order to change the desired angle. Legs rests that give fixed angles of 70°, 80° or 90°, measured from the horizontal plane down to the leg rest (see Fig. 1), are often used.
As examples of prior art in the field, mention may also be made of US 3,282,605 and US 3,337,261, which describe almost identical solutions for changing the angle of the foot/leg rest, both of which are far more complex than the solution according to the invention. The upper end of the rest is hinge-attached to the other parts of the wheelchair, and at a distance below the hinge point, there is mounted on the rest a toothed rack-like device having a circular arc form. The toothed rack is intended to cooperate with a locking device that is fixed to the other parts of the wheelchair, and the locking device comprises a mechanism in the form of teeth or the like for engagement with the teeth on the toothed rack, and also a mechanism for side shifting the toothed rack so that it disengages from the teeth in the locking device. In this position, the desired angle for the rest can be adjusted in steps, and once the desired angle has been found, the locking mechanism effects side shifting of the toothed rack so that it reengages with the teeth in the locking device.
The device and the method according to the invention are characterised by the features disclosed in the characterising clauses of claims 1 and 8 respectively.
Advantageous embodiments of the invention are set forth in the dependent claims.
The device according to the invention is described in more detail below with reference to the attached drawings, wherein:
Fig. 1 shows different leg rests with fixed angles according to the prior art; Fig. 2 shows an angle-adjustable leg rest according to the invention set at different angles;
Fig. 3 shows the leg rest in Fig. 2 mounted on a wheelchair and set at different angles; and
Fig. 4 is a perspective detailed view of the leg rest and the wheelchair shown in Fig. 3.
With reference to Figs. 2-4, there is shown a device 1 for adjusting the leg rest of a wheelchair in accordance with the present invention.
Referring in particular to Fig. 4, the device 1 comprises a supporting column 2 to the upper end 3 of which is attached a forward, upper part 4 of a wheelchair and to the lower end 5 of which is attached a footrest 6. The supporting column 2 further comprises an upper 2' and a lower 2' ' part which are hinge-connected at a link 7. To the lower part 2' ' of the supporting column 2, at a distance from the link 7, there is attached a first, preferably circular-arc-shaped part 8 having a plurality of adjustment holes 9 arranged along a circular arc with origo at the pivotal point of the link 7. To a forward, lower part 10 of the wheelchair there is attached a second, preferably circular- arc-shaped part 11 for locking cooperation with the first part 8, a plurality of adjustment holes 9 also being provided in the second part 11 along a similar circular arc as for the first part 8, and where the locking advantageously is effected by a bolt 12 passed through two adjustment holes 9 on their respective parts 8, 11 aligned with each other by turning the lower part 2' ' of the supporting column 2 about the link 7, and where the bolt is locked with a nut 13.
The angle adjustment of the device 1, as can be seen, is not stepless, but has predetermined angles of, for example, 70°, 80° or 90°, measured from a horizontal plane through the link 7 and down to the second part 2' ' of the supporting column 2. This can be seen in particular from Figure 2. Thus, fixed, predefined angles for a user's leg are obtained.
In a non-illustrated alternative embodiment, the locking bolt 12 is locked in threads provided in the adjustment holes 9 instead of using a locking nut 13. f
In another non-illustrated alternative embodiment, the link 7 is arranged at the junction between the forward, upper part of the wheelchair 4 and the supporting column 2. The aforementioned directional indications "upper", "lower", "forward" etc. are merely intended for descriptive purposes, and should by no means be regarded as limiting for the invention.

Claims

P a t e n t c l a i m s
1.
A device (1) for adjusting a wheelchair leg rest, comprising a supporting column (2) to the upper end (3) of which is attached a forward, upper part (4) of a wheelchair and to the lower end (5) of which is attached a footrest (6), wherein at least a lower part (2") of the supporting column (2) is hinge-connected at a link (7), characterised in that to the lower part (2") of the supporting column (2), at a distance from the link (7), there is attached a first, preferably circular-arc-shaped part (8) having a plurality of adjustment holes (9) arranged along a circular arc with origo at the pivotal point of the link (7), and where to a forward, lower part (10) of the wheelchair there is attached a second, preferably circular-arc-shaped part (11) for locking cooperation with the first part (8), a plurality of adjustment holes (9) also being provided in the second part (11) along a similar circular arc as for the first part (8), and where the locking advantageously is effected by a locking bolt (12) passed through two adjustment holes (9) in their respective parts (8, 11) aligned with each other by turning the lower part (2") of the supporting column (2) about the link (7).
2. A device according to claim 1, characterised in that the locking bolt (12) is locked with a nut (13).
3.
A device according to claim 1, characterised in that the locking bolt (12) is locked in threads provided in the adjustment holes (9).
4.
A device according to any one of the preceding claims, characterised in that the link (7) is arranged at the junction between the forward, upper part of the wheelchair (4) and the supporting column (2).
5.
A device according to any one of claims 1-3, characterised in that the link (7) is arranged between an upper (2') and lower (2") part of the supporting column (2).
6.
A device according to any one of the preceding claims, characterised in that three adjustment holes (9) are arranged on each of the respective parts (8, 11).
7.
A device according to claim 6, characterised in that the angle adjustment of the device (1) is carried out at predetermined angles of 70°, 80° and 90°.
8. A method for angle adjustment using a device (1) according to any one of the preceding claims, characterised by bringing two selected adjustment holes (9) on respective parts (8, 11) into alignment with each other by turning at least the lower part (2") of the supporting column (2) about the link (7); and passing a locking bolt (12) through the two aligned adjustment holes (9) for locking the respective parts (8, 11) together.
9.
A method according to claim 8, characterised by locking the locking bolt (12) with a nut (13).
10.
A method according to claim 8, characterised by locking the locking bolt (12) in threads provided in the adjustment holes (9).
PCT/NO2007/000308 2006-09-19 2007-08-31 Device and method for adjusting a wheelchair leg rest WO2008035978A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2009529140A JP2010503511A (en) 2006-09-19 2007-08-31 Wheelchair leg rest adjustment device and method
EP07808622.0A EP2063847B1 (en) 2006-09-19 2007-08-31 Device and method for adjusting a wheelchair leg rest
US12/441,951 US20100007189A1 (en) 2006-09-19 2007-08-31 Device and method for adjusting a wheelchair leg rest

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20064241A NO325627B1 (en) 2006-09-19 2006-09-19 Arrangement and method for adjusting the legrest for a wheelchair
NO20064241 2006-09-19

Publications (1)

Publication Number Publication Date
WO2008035978A1 true WO2008035978A1 (en) 2008-03-27

Family

ID=39200732

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2007/000308 WO2008035978A1 (en) 2006-09-19 2007-08-31 Device and method for adjusting a wheelchair leg rest

Country Status (5)

Country Link
US (1) US20100007189A1 (en)
EP (1) EP2063847B1 (en)
JP (1) JP2010503511A (en)
NO (1) NO325627B1 (en)
WO (1) WO2008035978A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010099160A (en) * 2008-10-22 2010-05-06 Hirotoshi Tomita Wheelchair
CN103800141A (en) * 2012-11-14 2014-05-21 镇江艾康医疗器械有限公司 Leg lifting device for orthopaedics

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN211382255U (en) 2019-12-25 2020-09-01 明门(中国)幼童用品有限公司 Nursing vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2696868A (en) * 1951-04-26 1954-12-14 Barry L Miller Corrective chair
US2949152A (en) * 1956-05-28 1960-08-16 Herbert E Hipps Chair brace
US3282605A (en) 1965-01-08 1966-11-01 Russell E Nihlean Runabout wheelchair
US3337261A (en) 1965-10-23 1967-08-22 Russell E Nihlean Folding wheel chair

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US153478A (en) * 1874-07-28 Improvement in invalid-chairs
US1310581A (en) * 1919-07-22 Reclining-chair
US390353A (en) * 1888-10-02 Reclining-chair
US508690A (en) * 1893-11-14 Chair
US2520309A (en) * 1945-09-18 1950-08-29 Herbert A Everest Foot and leg rest
KR890003205Y1 (en) * 1986-03-04 1989-05-17 주식회사 우경제작소 Assembly ladder hinge
JPS62197330U (en) * 1986-06-03 1987-12-15
US4893827A (en) * 1988-08-31 1990-01-16 Gunnell, Inc. Chair construction for incapacitated persons
DK0574188T3 (en) * 1992-06-06 1997-08-04 Mangar International Ltd Lifting appliance.
JP3057480U (en) * 1998-08-17 1999-06-02 忠 妹尾 Health chair
CA2281986A1 (en) * 1999-08-24 2001-02-24 David E. Muxlow Ltc dynamic tilt shower chair
JP3084914U (en) * 2001-09-27 2002-04-05 丸石自転車株式会社 wheelchair
DE102007044832A1 (en) * 2007-09-18 2009-04-02 Otto Bock Healthcare Ip Gmbh & Co. Kg Stand-up wheelchair

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2696868A (en) * 1951-04-26 1954-12-14 Barry L Miller Corrective chair
US2949152A (en) * 1956-05-28 1960-08-16 Herbert E Hipps Chair brace
US3282605A (en) 1965-01-08 1966-11-01 Russell E Nihlean Runabout wheelchair
US3337261A (en) 1965-10-23 1967-08-22 Russell E Nihlean Folding wheel chair

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2063847A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010099160A (en) * 2008-10-22 2010-05-06 Hirotoshi Tomita Wheelchair
CN103800141A (en) * 2012-11-14 2014-05-21 镇江艾康医疗器械有限公司 Leg lifting device for orthopaedics

Also Published As

Publication number Publication date
US20100007189A1 (en) 2010-01-14
EP2063847A4 (en) 2013-06-26
JP2010503511A (en) 2010-02-04
NO20064241L (en) 2008-03-21
EP2063847A1 (en) 2009-06-03
EP2063847B1 (en) 2016-01-06
NO325627B1 (en) 2008-06-30

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