WO1998010730A1 - Wheeled chair with dual pivots - Google Patents
Wheeled chair with dual pivots Download PDFInfo
- Publication number
- WO1998010730A1 WO1998010730A1 PCT/US1997/015089 US9715089W WO9810730A1 WO 1998010730 A1 WO1998010730 A1 WO 1998010730A1 US 9715089 W US9715089 W US 9715089W WO 9810730 A1 WO9810730 A1 WO 9810730A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- seat frame
- main frame
- wheeled chair
- frame
- supporting
- Prior art date
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
-
- 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
- A61G5/1081—Parts, details or accessories with shock absorbers or other suspension arrangements between frame and 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
- A61G5/10—Parts, details or accessories
- A61G5/1056—Arrangements for adjusting the seat
- A61G5/107—Arrangements for adjusting the seat positioning the whole seat forward or rearward
-
- 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
- A61G5/1075—Arrangements for adjusting the seat tilting the whole seat backwards
Definitions
- the present invention relates to wheeled chairs and, in particular, to wheeled chairs used in healthcare.
- wheelchair is widely used and typically includes a pair of large rear wheels which can be operated by hand by the user of the wheelchair and a pair of small pivoted casters for providing direction control.
- prior art wheelchairs have been of a fixed configuration requiring that the user remain seated upright at all times of use.
- tilt-in-space wheelchairs have a similar construction to regular wheelchairs, except that a seat frame portion of the chair is pivoted near a rear area of the wheelchair frame, with the entire seat frame tilting as a rigid unit. In so doing, the upright back portion of the seat frame tilts backwardly and the normally horizontal seat bottom portion of the seat frame tilts upwardly.
- the present invention comprises a wheeled chair including a main frame, a first pair of wheels affixed to and supporting the main frame, and a second pair of wheels pivotally mounted to and supporting the main frame.
- the wheeled chair further comprises a seat frame and adjustable support means for adjustably supporting a rear portion of the seat frame on a rear portion of the main frame in a plurality of vertical positions.
- the wheeled chair further comprises a first selectively operable pivot means for pivotally supporting a forward portion of the seat frame on a forward portion of the main frame.
- the wheeled chair further comprises a second selectively operable pivot means for pivotally supporting the seat frame on the main frame.
- the second selectively operable pivot means is located between the forward portion of the seat frame and the rear portion of the seat frame. The seat frame thereby can be selectively pivoted about one or the other of the first and second selectively operable pivot means.
- the adjustable support means comprises one or more gas springs.
- a trigger means is provided for controlling the operation of the gas springs.
- the invention allows the user to self-propel and provides needed support and comfort for long-term use. It also is cost effective versus a standard wheelchair with a modified seating system.
- the improved positioning of the seat frame prevents the user from slouching or sliding out of the chair without the use of cumbersome restraints and without changing the relative angle between the seat portion, back portion and leg portions of the seat frame.
- the invention provides superior flexibility, comfort, and mobility in a single chair design.
- Fig. 1 is a schematic, side view of a wheeled chair according to a preferred form of the invention.
- Fig. 2 is a perspective, partly exploded, schematic illustration of a portion of the wheeled chair of Fig. 1.
- Fig. 3 A is a top view of a portion of the wheeled chair of Fig. 2.
- Fig. 3B is a top view of a portion of the wheeled chair of Fig. 2 in a modified form.
- Figs. 4A and 4B show, respectively, the wheeled chair of Fig. 1 , with a seat frame portion thereof pivoted about a front pivot and shown in an upright position and in a pivoted position, respectively.
- Fig. 5A and 5B show, respectively, the wheeled chair of Fig. 1 , with a seat frame portion thereof pivoted about an intermediate hinge and shown in an upright position and in a pivoted position, respectively.
- Fig. 1 displays a pictoral representation of a recurrent training system 30 in accordance with the preferred embodiment of the present invention.
- the recurrent training system 30 comprises a computer system 32 whichis configured with programs and data as described below.
- the computer system 32 shown also in the block diagram representation of Fig. 2, comprises a bus 34 which connects directly to a processor 36 and a random access memory (Ram) 38.
- a floppy disk drive 40 and a hard disk drive 42 connect to the bus 34 via a discontrolier 44 which directly interfaces with the bus 34.
- a monitor 46 and a keyboard 48 connect to the bus 34 through a video interface 50 and a keyboard interface 52, respectively.
- the bus 34 also connects to a pointing device
- a power supply 58 connects to the bus 34 and to an alternating-current (AC), electrical energy source.
- AC alternating-current
- Fig. 3 is a block diagram representation of the program and data domain of the recurrent training system 30 of the preferred embodiment of the present invention.
- the program and data domain represents programming found on the computer system 32, which is executed by the computer system's processor 36 using Ram 38, and data files and tables which are stored in the computer system's hard disk drive 42.
- the program and data domain 60 includes a multi-tasking, virtual operating system 62 and a recurrent training application 64 which executes on the computer system 32 in addition to and in communication with the multi-tasking, virtual operating system 62.
- the function and operation of operating system 62 should be known to one reasonably skilled in the art, as are communication techniques employed to communicate between the operating system 62 and an application such as the recurrent training application 64.
- the recurrent training application 64 includes a plurality of processes, described below, which configure the computer system 32 to provide training information to a user of the computer system 32 at recurrent times determined by the user.
- the program and data domain 60 further comprises a plurality of data tables 66, an initiation file 68, and a plurality of system tables 70.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002265869A CA2265869A1 (en) | 1996-09-12 | 1997-08-26 | Wheeled chair with dual pivots |
AU40929/97A AU732719B2 (en) | 1996-09-12 | 1997-08-26 | Wheeled chair with dual pivots |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US2617796P | 1996-09-12 | 1996-09-12 | |
US60/026,177 | 1996-09-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998010730A1 true WO1998010730A1 (en) | 1998-03-19 |
Family
ID=21830333
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1997/015089 WO1998010730A1 (en) | 1996-09-12 | 1997-08-26 | Wheeled chair with dual pivots |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU732719B2 (en) |
CA (1) | CA2265869A1 (en) |
WO (1) | WO1998010730A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1017192C2 (en) * | 2001-01-25 | 2002-07-26 | Revab Bv | Wheelchair provided with a swiveling device near the knee of a user. |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4893827A (en) * | 1988-08-31 | 1990-01-16 | Gunnell, Inc. | Chair construction for incapacitated persons |
WO1997023187A1 (en) * | 1995-12-21 | 1997-07-03 | Degonda-Rehab S.A. | Stationary or wheeled reclining seat device, in particular for a sick or disabled person |
-
1997
- 1997-08-26 AU AU40929/97A patent/AU732719B2/en not_active Ceased
- 1997-08-26 CA CA002265869A patent/CA2265869A1/en not_active Abandoned
- 1997-08-26 WO PCT/US1997/015089 patent/WO1998010730A1/en active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4893827A (en) * | 1988-08-31 | 1990-01-16 | Gunnell, Inc. | Chair construction for incapacitated persons |
WO1997023187A1 (en) * | 1995-12-21 | 1997-07-03 | Degonda-Rehab S.A. | Stationary or wheeled reclining seat device, in particular for a sick or disabled person |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1017192C2 (en) * | 2001-01-25 | 2002-07-26 | Revab Bv | Wheelchair provided with a swiveling device near the knee of a user. |
EP1226803A1 (en) | 2001-01-25 | 2002-07-31 | Revab B.V. | Wheelchair having a pivot provision adjacent the knee of a user |
Also Published As
Publication number | Publication date |
---|---|
AU4092997A (en) | 1998-04-02 |
CA2265869A1 (en) | 1998-03-19 |
AU732719B2 (en) | 2001-04-26 |
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