EP0574482A1 - Wheelchair restraints. - Google Patents
Wheelchair restraints.Info
- Publication number
- EP0574482A1 EP0574482A1 EP92906307A EP92906307A EP0574482A1 EP 0574482 A1 EP0574482 A1 EP 0574482A1 EP 92906307 A EP92906307 A EP 92906307A EP 92906307 A EP92906307 A EP 92906307A EP 0574482 A1 EP0574482 A1 EP 0574482A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- abutment
- base
- wheelchair
- raised
- wheelchair restraint
- 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.)
- Granted
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
- A61G3/00—Ambulance aspects of vehicles; Vehicles with special provisions for transporting patients or disabled persons, or their personal conveyances, e.g. for facilitating access of, or for loading, wheelchairs
- A61G3/08—Accommodating or securing wheelchairs or stretchers
- A61G3/0808—Accommodating or securing wheelchairs
Definitions
- This invention relates to wheelchair restraints and is concerned with holding a wheelchair secure in a vehicle so that the user can remain in it rather than transfer to an ordinary seat with a seat belt.
- a wheelchair restraint comprising a base fixed or fixable to a floor, or being formed by part of a floor, belt anchorage means at the rear thereof, and an abutment adjustable between a raised position and a lowered position substantially flush with the base, wherein, in use, a wheelchair straddles the base and is engaged against the forward side of said abutment in its raised position, and the belting of said anchorage means is engaged around the structure of the wheelchair and tensioned to exert a rearward pull.
- the operation is carried out from entirely behind the wheelchair.
- the abutment should engage the framework of the chair substantially above the axis of the main wheels, while the belting can be entrained around the framework below that axis.
- tensioned there is a moment applied to the wheelchair by the belting and the abutment forcing the small front wheels hard against the floor.
- the abutment at least when raised, may be further adjustable in the fore and aft direction, there being means for urging it towards and holding it in a forwards position t-» augment the belt tensioning.
- the urging means conveniently includes a cam to act on the base of the abutment and a handle or pedal to operate the cam.
- the abutment may also be adjustable when lowered in the fore and aft direction. It can then be arranged that at one extreme it is raisable while at the other it co-operates with stop means to prevent it being raised. This enables the restraint, if portable, to be carried with all parts securely and compactly stowed.
- the anchorage means includes two anchorage points at rear corners of the base.
- Each may have an associated adjustable belt that can be formed into a loop and secured back at a fastening at the anchorage point.
- the abutment is hinged to the base near the rear thereof, and in the raised position inclines upwardly and forwardly.
- An extensible strut may link the upper part of the abutment with the base to support the abutment in the raised position, or a flexible tie may link the upper part of the abutment with the base to limit the upward hinging of the abutment.
- the abutment may simply be pulled up directly by hand, but it may prove easier to have a handle or pedal at the rear of the base linked to and operable to raise the abutment.
- Figure 1 is a perspective view from the front of a wheelchair anchorage in its out-of-use position
- Figure 2 is a perspective view of the restraint from the rear, showing it in use
- FIG. 3 is a perspective view from the front and the side of the restraint, showing its relationship to a wheelchair.
- a rectangular base 1 can be secured to floor tracks 2 by devices 3, such as described in GB-B-2219493, at the middle of two sides of the base 1.
- anchorage points 4 for belts 5 each of which can be formed into a loop with a free end clipped back into a socket 6 linked to the associated anchorage point 4.
- These sockets 6 can be rapid release devices such as are used with ordinary car seat belts.
- Tension can be applied to each loop by pulling on a portion 7 free of a jamming cleat 8.
- An abutment 9 is hinged to the base 1 about an axis near and parallel to its rear edge.
- a handle 19 Central of the rear of the base 1 there is a handle 19 by which the final tensioning is carried out.
- the abutment 9 is hinged to a shaft within the base which is capable of limited fore and aft movement, and the handle 19 is the operating member by which this is achieved.
- the handle 19 When the handle 19 is flat and partially housed within a recess 20, the abutment shaft is at a forward position, urged there by a cam on the lower end of the handle 19.
- the handle 19 is raised to the vertical or thereabouts, the shaft is released and can assume a rearwards position. If desired, there may be means for locking the handle in the lowered position.
- a wheelchair can be moved to straddle the base 1 either from the front or the rear.
- the handle 19 is pulled up, allowing the abutment 9 to be raised and held by the strut 15.
- the belts 5 are looped round parts of the wheelchair, secured and lightly tensioned so that the wheelchair frame 12 engages the pads 11.
- the handle 19 is lowered, pushing the abutment 9 and thus the wheelchair slightly forwards and straining the belts 5 to increased tension. This finally secures the wheelchair.
- the action of the handle 19 could be reversed; that is it would be lowered while the belts 5 were being fitted and then pulled up to a retained upright position to shift the abutment 9 forwards and finally tension the belts.
- the handle 19 is simply lifted (or lowered) , the belts 5 are released from the sockets 6, and the abutment 9 is lowered.
- a telescopic strut there could be a jointed one which acts like a toggle mechanism.
- a manually operated handle 19 there could be a pedal.
- the anchorage could be built into the floor of a vehicle as a permanent feature.
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Handcart (AREA)
- Invalid Beds And Related Equipment (AREA)
- Materials For Medical Uses (AREA)
- Non-Reversible Transmitting Devices (AREA)
- Developing Agents For Electrophotography (AREA)
Abstract
Un dispositif de blocage de chaise roulante possède une base plate (1) pouvant être ancrée sur un plancher ou faisant partie de ce dernier. Une butée (9) peut être relevée depuis la base, de manière à s'incliner vers le haut et vers l'avant, éventuellement soutenue par une contre-fiche (15) ou retenue par un lien flexible. A l'arrière, des points d'ancrage (4) comportent des sangles réglables (5) formant des boucles, que l'on peut serrer à proximité de ces points. Lorsqu'une chaise roulante enjambe la base, la butée (9) est relevée pour entrer en contact avec l'arrière du châssis de la chaise roulante, bien au-dessus du niveau de l'essieu principal, et les sangles (5) sont serrées autour des parties inférieures du châssis. On peut appliquer une tension maximale en poussant la butée (9) légèrement vers l'avant.A wheelchair blocking device has a flat base (1) anchorable to or forming part of a floor. A stop (9) can be raised from the base, so as to tilt upwards and forwards, possibly supported by a strut (15) or retained by a flexible link. At the rear, anchor points (4) comprise adjustable straps (5) forming loops, which can be tightened close to these points. When a wheelchair straddles the base, the stopper (9) is raised to contact the rear of the wheelchair frame, well above the level of the main axle, and the straps (5) are tightened around the lower parts of the chassis. Maximum tension can be applied by pushing the stopper (9) slightly forward.
Description
wheelchair restraints
This invention relates to wheelchair restraints and is concerned with holding a wheelchair secure in a vehicle so that the user can remain in it rather than transfer to an ordinary seat with a seat belt.
Various wheelchair restraints are known, and some are described in GB-B-2176154, GB-B-2197628 and GB-B- 2206529. There are others, and a common feature with them is that they hold the wheelchair front and back, and at both sides. This often means four separate attaching operations, a:~d fiddling around near the floor and the user's legs. This is awkward, lengthy, and possibly embarrassing.
It is the aim of this invention to reduce and simplify the attachment operations, but still secure the wheelchair rigidly to the vehicle.
According to the present invention there is provided a wheelchair restraint comprising a base fixed or fixable to a floor, or being formed by part of a floor, belt anchorage means at the rear thereof, and an abutment adjustable between a raised position and a lowered position substantially flush with the base, wherein, in use, a wheelchair straddles the base and is engaged against the forward side of said abutment in its raised position, and the belting of said anchorage means is engaged around the structure of the wheelchair and tensioned to exert a rearward pull.
Thus, the operation is carried out from entirely
behind the wheelchair. The abutment should engage the framework of the chair substantially above the axis of the main wheels, while the belting can be entrained around the framework below that axis. When tensioned, there is a moment applied to the wheelchair by the belting and the abutment forcing the small front wheels hard against the floor. Experiments have shown that this is an extremely strong and secure arrangement.
The abutment, at least when raised, may be further adjustable in the fore and aft direction, there being means for urging it towards and holding it in a forwards position t-» augment the belt tensioning. In other words, the tensioning is completed by adjustment of the abutment, forcing the wheelchair forwards against the belting. The urging means conveniently includes a cam to act on the base of the abutment and a handle or pedal to operate the cam.
The abutment may also be adjustable when lowered in the fore and aft direction. It can then be arranged that at one extreme it is raisable while at the other it co-operates with stop means to prevent it being raised. This enables the restraint, if portable, to be carried with all parts securely and compactly stowed.
Preferably, the anchorage means includes two anchorage points at rear corners of the base. Each may have an associated adjustable belt that can be formed into a loop and secured back at a fastening at the anchorage point. Conveniently, the abutment is hinged to the base
near the rear thereof, and in the raised position inclines upwardly and forwardly. An extensible strut may link the upper part of the abutment with the base to support the abutment in the raised position, or a flexible tie may link the upper part of the abutment with the base to limit the upward hinging of the abutment.The abutment may simply be pulled up directly by hand, but it may prove easier to have a handle or pedal at the rear of the base linked to and operable to raise the abutment. For a better understanding of the invention, one embodiment will now be described, by way of example, with reference to the accompanying drawings, in which:
Figure 1 is a perspective view from the front of a wheelchair anchorage in its out-of-use position, Figure 2 is a perspective view of the restraint from the rear, showing it in use, and
Figure 3 is a perspective view from the front and the side of the restraint, showing its relationship to a wheelchair. A rectangular base 1 can be secured to floor tracks 2 by devices 3, such as described in GB-B-2219493, at the middle of two sides of the base 1. At the rear corners there are anchorage points 4 for belts 5 each of which can be formed into a loop with a free end clipped back into a socket 6 linked to the associated anchorage point 4. These sockets 6 can be rapid release devices such as are used with ordinary car seat belts. Tension can be applied to each loop by pulling on a portion 7 free of a jamming cleat 8.
An abutment 9 is hinged to the base 1 about an axis near and parallel to its rear edge. It can assume a lowered position as shown in Figure 1, where it is substan¬ tially flush with the base 1, or a raised position as shown in the other figures. In this example, it resembles the Greek letter π and the arms 10, which may be telescopic within limits, have pads 11 for engagement by framework 12 of a wheelchair. The two legs 13 of the abutment are spanned near their upper ends by a bar 14 to which is coupled one end of a telescopic strut 15, the other end of which is pivoted to the base 1. The strut has a spring leaded plunger which engages when the strut is fully extended to hold it in that position, and it can be released by pulling a knob 16. The legs 13 house in recesses 17 in the base 1 on either side of a shorter recess 18 for the strut 15.
Central of the rear of the base 1 there is a handle 19 by which the final tensioning is carried out. The abutment 9 is hinged to a shaft within the base which is capable of limited fore and aft movement, and the handle 19 is the operating member by which this is achieved. When the handle 19 is flat and partially housed within a recess 20, the abutment shaft is at a forward position, urged there by a cam on the lower end of the handle 19. However, when the handle 19 is raised to the vertical or thereabouts, the shaft is released and can assume a rearwards position. If desired, there may be means for locking the handle in the lowered position. Also, it can be arranged that with
everything flat as in Figure 1, and with the abutment 9 consequently urged forwards by the cammed handle 19, the abutment will be trapped in that position and not able to swing free if the base 1 is picked up and carried. This may be accomplished by, for example, the bar 14 engaging a C-section member 20 at the front centre of the base 1, concave to the rear and supported not to interfere with the legs 13. When the handle 19 is raised, the abutment 9 can be drawn back for the bar 14 to clear the hook formed by the member 20 and then to be swung upwards.
Before use, the abutment 9, strut 15 and handle 19 a'-e all lowered as shown in Figure 1. A wheelchair can be moved to straddle the base 1 either from the front or the rear. When it is approximately in position, the handle 19 is pulled up, allowing the abutment 9 to be raised and held by the strut 15. Then the belts 5 are looped round parts of the wheelchair, secured and lightly tensioned so that the wheelchair frame 12 engages the pads 11. Finally, the handle 19 is lowered, pushing the abutment 9 and thus the wheelchair slightly forwards and straining the belts 5 to increased tension. This finally secures the wheelchair.
The action of the handle 19 could be reversed; that is it would be lowered while the belts 5 were being fitted and then pulled up to a retained upright position to shift the abutment 9 forwards and finally tension the belts.
For release, the handle 19 is simply lifted (or lowered) , the belts 5 are released from the sockets 6, and the abutment 9 is lowered.
It will be understood that there are various alternatives. For example, instead of a telescopic strut there could be a jointed one which acts like a toggle mechanism. Alternatively, there could simply be a strap or other flexible tie, the abutment being held up by hand or by a friction hinge until the wheelchair is backed up against it to hold it there with the strap tensioned. Instead of a manually operated handle 19, there could be a pedal. Also, rather than pulling the abutment 9 up by hand, there could be a mechanism, handle or pedal operated, for raising, it, and if this was self-locking there would be less or no need for the strut 15. In a further variation, instead of two separate belt restraints there could be one looped from one anchorage point 4 around the wheelchair frame to the other point 4, and that single belt could be on a retracting reel.
In a further development, instead of having a removable base 1, the anchorage could be built into the floor of a vehicle as a permanent feature.
It will be understood that the base 1 could be reversed so that the wheelchair would then face rearwardly. All references herein to front and rear can therefore be interchanged.
Claims
1. A wheelchair restraint comprising a base (1) fixed or fixable to a floor, or being formed by part of a floor, and characterised by belt anchorage means (4,5) at the rear thereof, and an abutment (9) adjustable between a raised position and a lowered position substantially flush with the base (1) , wherein, in use, a wheelchair straddles the base (1) and is engaged against the forward side of said abutment (9) in its raised position, and the belting (5) of said anchorage means (4,5) is engaged around the structure o* the wheelchair and tensioned to exert a rearward pull.
2. A wheelchair restraint as claimed in Claim 1, characterised in that abutment (9) , at least when raised, is further adjustable in the fore and aft direction, there being means (19) for urging it towards and holding it in a forwards position to augment the belt tensioning.
3. A wheelchair restraint as claimed in Claim 2, characterised in that said urging means includes a cam to act on the base of the abutment and a handle (19) or pedal to operate the cam.
4. A wheelchair restraint as claimed in Claim 2 or 3, characterised in that the abutment (9) is adjustable when lowered in the fore and aft direction, and in that at one extreme it is raisable and at the other it co-operates with stop means (20) to prevent it being raised.
5. A wheelchair restraint as claimed in any preceding Claim, characterised in that said anchorage means (4,5) includes two anchorage points (4) at rear corners of the base (1) , each having an associated adjustable belt (5) that can be formed into a loop and secured back at a fastening at the anchorage point.
6. A wheelchair restraint as claimed in any preceding Claim, characterised in that said abutment (9) is hinged to the base (1) near the rear thereof, and in the raised position inclines upwardly and forwardly.
7. A wheelchair restraint as claimed in Claim 6, characterised in that an extensible strut (15) links the upper part (14) of the abutment (9) with the base (1) to support the abutment in the raised position.
8. A wheelchair restraint as claimed in Claim 6, characterised in that a flexible tie links the upper part of the abutment (9) with the base (1) to limit the upward hinging of the abutments.
9. A wheelchair restraint as claimed in any preceding Claim, characterised in that there is a handle or pedal at the rear of the base linked to and operable to raise the abutment.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9104790 | 1991-03-07 | ||
| GB9104790A GB9104790D0 (en) | 1991-03-07 | 1991-03-07 | Improvements relating to wheelchair restraints |
| PCT/GB1992/000418 WO1992015270A1 (en) | 1991-03-07 | 1992-03-09 | Wheelchair restraints |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0574482A1 true EP0574482A1 (en) | 1993-12-22 |
| EP0574482B1 EP0574482B1 (en) | 1995-12-13 |
Family
ID=10691134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92906307A Expired - Lifetime EP0574482B1 (en) | 1991-03-07 | 1992-03-09 | Wheelchair restraints |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0574482B1 (en) |
| AU (1) | AU659634B2 (en) |
| DE (1) | DE69206789T2 (en) |
| GB (1) | GB9104790D0 (en) |
| WO (1) | WO1992015270A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2697748B1 (en) * | 1992-11-09 | 1994-12-30 | Dietrich & Cie De | Device for fixing a vehicle for the physically handicapped in a means of transport. |
| US7455490B1 (en) | 2004-07-21 | 2008-11-25 | Gregory F Goosen | Wheelchair holding device |
| JP6981342B2 (en) * | 2018-04-02 | 2021-12-15 | トヨタ車体株式会社 | Vehicle wheelchair storage device |
| JP6988654B2 (en) * | 2018-04-02 | 2022-01-05 | トヨタ車体株式会社 | Vehicle wheelchair storage device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4093303A (en) * | 1977-02-28 | 1978-06-06 | Chas. Olson & Sons And Wheel Service Co., Inc. | Wheelchair retaining apparatus for vehicles |
| GB2180507B (en) * | 1985-09-07 | 1989-08-16 | Metrocab Ltd | Locating wheelchairs, primarily in vehicles |
| GB2197628B (en) * | 1986-11-14 | 1991-01-02 | Unwin C N Ltds | Improvements relating to dual purpose seat structures |
| US4995775A (en) * | 1990-03-01 | 1991-02-26 | Gresham Gerald L | Tie down apparatus for wheelchair |
-
1991
- 1991-03-07 GB GB9104790A patent/GB9104790D0/en active Pending
-
1992
- 1992-03-09 DE DE69206789T patent/DE69206789T2/en not_active Expired - Fee Related
- 1992-03-09 AU AU14108/92A patent/AU659634B2/en not_active Ceased
- 1992-03-09 WO PCT/GB1992/000418 patent/WO1992015270A1/en active IP Right Grant
- 1992-03-09 EP EP92906307A patent/EP0574482B1/en not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9215270A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| AU659634B2 (en) | 1995-05-25 |
| WO1992015270A1 (en) | 1992-09-17 |
| GB9104790D0 (en) | 1991-04-17 |
| DE69206789T2 (en) | 1996-08-08 |
| DE69206789D1 (en) | 1996-01-25 |
| EP0574482B1 (en) | 1995-12-13 |
| AU1410892A (en) | 1992-10-06 |
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