EP1286638B1 - A chair for handicapped or disabled persons - Google Patents

A chair for handicapped or disabled persons Download PDF

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Publication number
EP1286638B1
EP1286638B1 EP01931474A EP01931474A EP1286638B1 EP 1286638 B1 EP1286638 B1 EP 1286638B1 EP 01931474 A EP01931474 A EP 01931474A EP 01931474 A EP01931474 A EP 01931474A EP 1286638 B1 EP1286638 B1 EP 1286638B1
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EP
European Patent Office
Prior art keywords
seat
means
chair
frame
chair according
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.)
Active
Application number
EP01931474A
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German (de)
French (fr)
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EP1286638A1 (en
Inventor
Erik Vagn Hansen
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.)
BORRINGIA INDUSTRIE AG
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BORRINGIA INDUSTRIE AG
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Priority to DKPA200000797 priority Critical
Priority to DK200000797 priority
Application filed by BORRINGIA INDUSTRIE AG filed Critical BORRINGIA INDUSTRIE AG
Priority to PCT/DK2001/000338 priority patent/WO2001087219A1/en
Publication of EP1286638A1 publication Critical patent/EP1286638A1/en
Application granted granted Critical
Publication of EP1286638B1 publication Critical patent/EP1286638B1/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10Parts, details or accessories
    • A61G5/14Standing-up or sitting-down aids
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10Parts, details or accessories
    • A61G5/12Rests specially adapted therefor, e.g. for the head or the feet
    • A61G5/125Rests specially adapted therefor, e.g. for the head or the feet for arms
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10Parts, details or accessories
    • A61G5/12Rests specially adapted therefor, e.g. for the head or the feet
    • A61G5/128Rests specially adapted therefor, e.g. for the head or the feet for feet
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10Parts, details or accessories
    • A61G5/1002Parts, details or accessories with toilet facilities

Description

  • The present invention relates to a chair for handicapped or disabled persons and of the type having a seat, which may be selectively raised and lowered to a desired level. A chair of this type may, for example, be used as a commode or as a sanitation chair. Such sanitation chair having a frame and a seat mounted thereon by means of a pair of parallel swingable arms is known. The seat may be raised and lowered by means of a pedal operated pump.
  • NL-A-1 005 550 discloses a douche chair for handicapped or disabled persons. The chair is mounted on a base frame by means of a parallelogram linkage allowing a translational movement of the chair, so that the chair may be lifted and lowered by means of a power cylinder.
  • FR-A-2 697 418 discloses a chair formed by mutually hinge connected parts, which may be moved in relation to each other by means of power cylinders. The synchronized operation of the power cylinders may be controlled by a small microprocessor according to fixed programs. In this manner the chair may, for example, be used for assisting a disabled person sitting in the chair to move from the sitting to a standing position and vice versa.
  • US-A-5,498,064 discloses a seat mounted on a frame by means of a linkage system, so that the seat may be moved between a lowered sitting position and a raised position so as to help the user to rise to a standing position. The seat may be releasably locked in the lowered sitting position and is biased towards the raised position by springs. The linkage interconnecting the seat and the frame is designed so as to automatically tilt the seat forward when it is raised.
  • The present invention provides a chair of the above type (see US-A- 5 498 064), which may be used by a handicapped or disabled person with less assistance from a nurse or another assisting person.
  • Thus, the present invention provides a chair for handicapped and disabled persons as specified in claim 1.
  • Such a chair may be used as a conventional commode or sanitation chair, and in addition the chair may be operated so as to assist the user in moving from a sitting to a standing position. When a person or user is sitting in the chair so that his or her feet are touching the ground the seat may be lifted by means of the lifting device so as to stretch the legs of the user, and at the same time operating the tilting means may tilt the seat forwards. This tilting movement of the seat combined with the forward movement of the seat caused by the lifting device pushes the posterior of the user forward, whereby the user is assisted in changing from a sitting to an upright standing position. Conversely, a person may be assisted in changing from a standing into a sitting position by performing the operations described above in the reverse order.
  • The lifting device may be of any type adapted to move the seat upwardly with vertically upwardly as well as horizontally forwardly directed components of movement. As an example, co-operating tracks or cams and track or cam followers may determine the movement. In the presently preferred embodiment, however, the lifting device comprises a parallelogram linkage movably connecting the seat to the frame and driving means for moving the seat in relation to the frame while maintaining the seat in a substantially horizontal position. The driving means may be operated by the user or by an assisting person.
  • As mentioned above, the tilting means comprise means connecting the seat to the lifting device so that the seat may be tilted about a horizontal axis, and biasing means which may be selectively activated so as to tilt the seat in a forward direction. This means that the seat is usually locked in a substantially horizontal position. However, when the seat is to be tilted forwards the locking means may be released so that the seat is biased towards the tilted position by the biasing means. The biasing means may comprise springs of any kind. Preferably, however, the biasing means comprises a gas spring
  • The driving means for elevating and lowering the seat may be of any suitable type, such as hydraulically or pneumatically operated devices comprising hydraulic or pneumatic cylinders, respectively. Alternatively, the driving means may be of a mechanical type. In the latter case they preferably comprise a motor driven screw spindle and a co-operating nut member extending between the frame and the parallelogram linkage.
  • The seat may be a toilet seat so that the chair may be used as a commode chair. Furthermore, the chair may comprise a footrest, which is releasably mounted on the seat. The foot rest can then be removed when the chair is to be used for moving a person or patient from a sitting to an upright standing position or vice versa. To make the chair more comfortable and safe the seat may comprise a back and/or arm rests. These parts may be removable, if desired. Furthermore, in order to facilitate transportation of a person sitting in the chair the frame is preferably supported by wheels.
  • The invention will now be further described with reference to the drawings, wherein
  • Fig. 1 is a rear bottom view of an embodiment of the chair according to the invention,
  • Fig. 2 is a front and top perspective view of a chassis of the chair shown in Fig. 1,
  • Fig. 3 is a side view of the chair chassis shown in Fig. 1,
  • Fig. 4 is a diagrammatic illustration of the motion geometry the lifting mechanism of the chassis,
  • Fig. 5 is a diagram, in which seat movements in vertical and horizontal directions are plotted as functions of the actuator length, and
  • Figs. 6-9 illustrate how a handicapped person sitting on a chair according to the invention may be raised to a standing position.
  • Fig. 1 shows a chair according to the invention comprising a carriage frame 10, a chair support frame 11, a lifting mechanism 12 for lifting the support frame 11, and a seat part 13, which is fastened to the support frame 11. The carriage frame 10 is supported by at least three - in the present case four - castor wheels 14 enabling the chair to roll easily on a horizontal floor surface. For convenience the castor wheels 14 may be equipped with brakes of some kind.
  • As best shown in Figs. 2 and 3 the lifting mechanism 12 comprises two oppositely arranged pairs of mutually parallel lifting arms 15, which extend between the support frame 11 and the carriage frame 10, and which are pivotally connected thereto by pivots 16-19. The lifting mechanism further comprises an actuator 20, one end of which is fastened to a crossbeam 21 of the carriage frame 10 by means of a pivot bearing 22. The other end of the actuator 20 is pivotally connected to a crossbeam 23, which extends between the upper lifting arms 15 of said opposite pairs of arms. The actuator 20 is connected to the crossbeam 21 by means of a pivot 24. The pivots 16-19 of each pair of lifting arms define a parallelogram, so that the support frame 11 and the seat part 13 mounted thereon is raised and lowered, when the actuator 20 is extended and retracted.
  • The actuator 20 may, for example, comprise an electric motor and by energising and reversing the motor the active length l (Figs. 2 and 4) may selectively be changed. When the length l of the actuator 20 is increased, the support frame 11 is lifted or moved upwards and forwards along an arc of a circle without tilting in relation to the carriage frame 10.
  • The seat part 13 comprises a seat 25, for example a toilet seat, which may be covered by a cover seat (not shown), a pair of removable armrests 26, a back support 27, and a removable footrest 28 (Figs. 6-9). The seat part 13 is tiltably mounted on the support frame 11 by means of a bearing or pivot pin or shaft 29 formed on the crossbar or crossbeam 23 and defining a substantially horizontal tilting axis.
  • A tubular bearing bushing 30 formed at the front end of the seat part 13 engages with the pivot shaft or pin 29, whereby the seat part 13 is connected to the support frame 11 such that the seat part can tilt forwards and backwards relative to the support frame. The opposite ends of a biasing actuator device 31 are pivotally mounted to the rear end of the seat 25 and to the support frame 11, respectively, for example at one of the pivots 19.
  • The actuator device 31 may either be of a passive spring type, such as a coil spring or a gas spring combined with a locking mechanism.
  • Fig. 4 illustrates very simplified the geometry of the lifting mechanism 12. In Fig. 4 the length of the lifting arms 15 is b, the distance between the pivots 16 and 24 is c, the horizontal and vertical distances between the pivots 16 and 22 are d and f, respectively, the vertical height of the pivot bearing above floor level is e, the horizontal and vertical components of the arm 15 are j and k, respectively, h is the vertical height of the pivot 29,30 above the pivot 17, and i and s are the horizontal and vertical component, respectively, of the distance between the pivot 29,30 and the front edge E of the seat 25. A line through the pivots 16 and 22 defines an angle D with vertical, and L is an angle defined between said line and the lifting arm 15. Some of the above designations are also shown in Figs. 2 and 3.
  • The co-ordinates x and y of the edge E in the x-y co-ordinate system indicated in Fig. 4 may now be calculated by the following equations: D = arctan (d/f)
    Figure 00060001
    Y(l)=e+f+h+s-bcos(D+L(l)) X(l)=g+i-bsin(D+L(l))
  • As an example, the constant values may be as follows:
    b = 525 mm   d = 130.92 mm   f = 268.75 mm h = 120.93 mm
    s = 44 mm   c = 100 mm   e = 97.85 mm g = 388.22 mm
    i = 150 mm with the actuator length I varying over the range 270 mm to 350 mm.
  • Based on the above values and by means of the above equations the co-ordinates of the front seat edge E have been calculated for various lengths I of the actuator 20 and plotted in the diagram shown in Fig. 5. In Fig. 5 the horizontal and vertical movements of the front seat edge E are plotted as functions of the length I of the actuator 20. Thus, the upper solid curve illustrates the vertical movement of the front seat edge E, while the lower dotted curve illustrates the horizontal movement of the edge E in response to the varying length I of the actuator 20.
  • A person who is in need of care and is seated in a chair according to the invention as
    described above may be elevated or lowered to a suitable working position for the carer by operating the actuator 20, for example by means of a remote control, not shown. During such lifting or lowering operation the seat part 13 may be kept in a slightly backwards-tilted position or any other position, which is comfortable for the user and the carer. For example, when used over a toilet the height of the chair according to the invention may readily be adjusted as needed. The chair meets all the normal applications
    of a commode chair with detachable armrests etc for shifting a disabled person in or out of the chair.
  • Figs. 6-9 illustrate how the chair according to the invention may also be used for assisting a person who is able to stand on his feet and walk, maybe with support, but who has difficulties in rising onto his feet from a seated position. As a first step the footrest 28 is removed, the wheels 14 are locked, and the actuator 20 is operated so as to lower the seat 25 until the feet of the sitting person make contact with the floor. Now, as illustrated in Figs. 7-9, extending the actuator 20 elevates the seat 25 and at the same time the actuator device 31 is operated (by a carer or by the patient) by releasing the locking mechanism so that the seat part 13 begins to tilt forward. Thereby the person is assisted in stretching his legs towards an upright, standing position while he is still leaning back against the seat part 13 so that he has a comfortable feeling of safety. When the legs of the patient or person are fully or nearly fully stretched the seat is moved forwards through the last part of the circular movement of the support frame 11 and the seat part mounted thereon. Finally, the person has been raised to and is left in a balanced, upright position. It should be understood that the seat movement thus used for rising a person from a sitting to a standing position is a combination of the upward and forward movement of the seat part 13 caused by the lifting mechanism 12 and the forward tilting of the seat part caused by the actuator device 31. A standing person may be transferred to a sitting position in the chair by performing the above steps in a reverse order.

Claims (9)

  1. A chair for handicapped and disabled persons, said chair comprising a frame (10), a seat (13), a lifting device (12) by means of which the seat is mounted on the frame, and which is adapted to impart a combined upward and forward movement to the seat, and tilting means (29-31)
       characterized in that the tilting means comprising (i) means (29,30) connecting the seat (13) to the lifting device (12) such that the seat may be tilted about a substantially horizontal axis in relation to the lifting device, (ii) biasing means (31) for biasing the seat forwards towards a tilted position, and (iii) releasable locking means for locking the seat in its substantially horizontal position, whereby the locking means may be released when the seat is to be tilted forwards about said axis, said tilting means selectively tilting the seat in a forward direction so as to allow a person sitting on the seat to move from a sitting to a standing position.
  2. A chair according to claim 1, wherein the lifting device comprises a parallelogram linkage (15-19) movably connecting the seat (13) to the frame (10) and driving means (20) for moving the seat in relation to the frame while maintaining the seat in a substantially horizontal position.
  3. A chair according to claim 1 or 2, wherein the biasing means (31) comprise a spring, such as a gas spring or a coil spring.
  4. A chair according to claim 2 or 3, wherein the driving means (20) comprises a motor driven screw spindle and a co-operating nut member extending between the frame (10) and the parallelogram linkage (15-19).
  5. A chair according to any of the claims 1-4, wherein the seat (13) comprises a toilet seat (25).
  6. A chair according to any of the claims 1-5, further comprising a footrest (28) releasably mounted on the seat (13).
  7. A chair according to any of the claims 1-6, wherein the seat (13) comprises back and/or arm rests (26,27).
  8. A chair according to any of the claims 1-7, wherein the frame or chassis (13) is supported by wheels (14).
  9. A chair according to any of the claims 1-8, wherein the wheels (14) supporting the frame or chassis (13) are motor driven and/or actively steered, jointly or individually.
EP01931474A 2000-05-18 2001-05-14 A chair for handicapped or disabled persons Active EP1286638B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DKPA200000797 2000-05-18
DK200000797 2000-05-18
PCT/DK2001/000338 WO2001087219A1 (en) 2000-05-18 2001-05-14 A chair for handicapped or disabled persons

Publications (2)

Publication Number Publication Date
EP1286638A1 EP1286638A1 (en) 2003-03-05
EP1286638B1 true EP1286638B1 (en) 2005-07-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP01931474A Active EP1286638B1 (en) 2000-05-18 2001-05-14 A chair for handicapped or disabled persons

Country Status (5)

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EP (1) EP1286638B1 (en)
AT (1) AT299689T (en)
AU (1) AU5824401A (en)
DE (1) DE60112081T2 (en)
WO (1) WO2001087219A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012059806A1 (en) 2010-11-01 2012-05-10 Borringia Industrie Ag Xxl care lift

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GB2380399B (en) * 2001-04-03 2005-02-02 Graham Taylor A powered lift recliner chair
CH694982A5 (en) 2001-09-21 2005-10-31 Levo Ag Stand-up wheelchair.
CH695010A5 (en) * 2001-09-21 2005-11-15 Levo Ag Stand-up wheelchair.
GB2381742A (en) * 2001-11-08 2003-05-14 Jenx Ltd Multi-functional adjustable wheeled chair
SE519947C2 (en) * 2002-05-23 2003-04-29 Aake Johansson Invalid chair, has seat which can pivoted forward, raised and lowered
NL1022812C2 (en) * 2003-02-28 2004-08-31 Lopital Nederland B V Shower-toilet chair for handicapped person has mobile support frame and secondary frame adjustable in height by parallel bars on opposite sides of chair, bars being rotatable by electric drive system
ITPD20050227A1 (en) * 2005-07-21 2007-01-22 Vassilli Srl Wheelchair for the movement of people, not able to walk, in particular in public service vehicles.
US8661579B2 (en) * 2008-08-12 2014-03-04 James P. Orrico Patient transfer
KR101013566B1 (en) 2009-01-06 2011-02-14 (주)엠플러스 Subsidiary implement for helping sitting and standing up
US8151812B2 (en) * 2010-07-02 2012-04-10 Eli Razon Sit down and stand up walker with seat assembly
DE202013100650U1 (en) 2013-02-14 2013-04-10 Wenko-Wenselaar Gmbh & Co. Kg Shower stool
DE102013101455A1 (en) 2013-02-14 2014-08-14 Wenko-Wenselaar Gmbh & Co. Kg Shower chair or stool for mounting in bath tub to shower e.g. disabled people seated on chair or stool, has seat surface arranged on frame and provided with front and rear hygiene recesses, separated from each other by connecting web
CN105030438A (en) * 2015-07-29 2015-11-11 浙江理工大学 Wheelchair for assisting standing-up and defecation and control method thereof
IT201600128300A1 (en) * 2016-12-19 2018-06-19 Trama Eng S R L musculo-skeletal apparatus aid for a disabled user

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SE300672B (en) * 1965-09-02 1968-05-06 Redev Ab
CH681059A5 (en) * 1990-04-18 1993-01-15 Conrad R Dr Deucher Rising chair with lifting mechanism - has seat tilt axis moved upwards and forwards when lifting
US5312153A (en) * 1990-07-23 1994-05-17 Ortho-Kinetics, Inc. Recline lift wall hugger chair
FR2697418B1 (en) * 1992-11-05 1994-12-23 Mario Konior Multiposition seating, particularly for disabled people.
GB2282062B (en) * 1993-09-14 1997-08-06 John Alfred Hooker Seat Unit
US5730236A (en) * 1994-02-04 1998-03-24 Miller; Fritz Wendell Adjustable powered wheelchair
FR2717377B1 (en) * 1994-03-18 1996-06-21 Idc Isolateur Denominateur Lifting device for stand-up wheelchair and wheelchair by application.
DK171630B1 (en) * 1995-12-22 1997-03-03 Jens Kugle Adjustable support
NL1005550C2 (en) * 1997-03-17 1998-09-18 Lopital Nederland B V Shower-chair, particularly for invalids
WO2000047154A2 (en) * 1999-02-12 2000-08-17 Borringia Industrie Ag A lifting and transporting device for disabled persons

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012059806A1 (en) 2010-11-01 2012-05-10 Borringia Industrie Ag Xxl care lift

Also Published As

Publication number Publication date
DE60112081T2 (en) 2006-06-01
DE60112081D1 (en) 2005-08-25
AU5824401A (en) 2001-11-26
WO2001087219A1 (en) 2001-11-22
AT299689T (en) 2005-08-15
EP1286638A1 (en) 2003-03-05

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