EP4456852A1 - Dispositif de repose-pieds inclinable telescopique pour fauteuil roulant motorise - Google Patents
Dispositif de repose-pieds inclinable telescopique pour fauteuil roulant motoriseInfo
- Publication number
- EP4456852A1 EP4456852A1 EP22809125.2A EP22809125A EP4456852A1 EP 4456852 A1 EP4456852 A1 EP 4456852A1 EP 22809125 A EP22809125 A EP 22809125A EP 4456852 A1 EP4456852 A1 EP 4456852A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pivot
- frame
- pulley
- plate
- pivoting
- 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
- 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
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/50—Supports for the feet or the legs
- A47C7/506—Supports for the feet or the legs of adjustable type
- A47C7/5066—Supports for the feet or the legs of adjustable type by rotation
- A47C7/5068—Supports for the feet or the legs of adjustable type by rotation actuated by linkages
-
- 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
- A61G5/04—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
-
- 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
- A61G5/127—Rests specially adapted therefor, e.g. for the head or the feet for lower legs
-
- 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
- A61G2203/00—General characteristics of devices
- A61G2203/70—General characteristics of devices with special adaptations, e.g. for safety or comfort
- A61G2203/74—General characteristics of devices with special adaptations, e.g. for safety or comfort for anti-shear when adjusting furniture
Definitions
- the present invention relates to the field of motorized wheelchairs, and more particularly to a telescopic footrest device.
- a wheelchair mainly comprises a wheeled frame on which is secured a chair comprising, in addition to a seat, a backrest and armrests, a legrest comprising a plate lined with pads to rest the calves and which is of adjustable angle by being pivotally mounted on the chassis, so that the user can find the most comfortable position possible between the two extreme positions, bent legs and extended legs.
- the leg rest comprises at its free end a footrest, which is in the form of a substantially perpendicular pallet, of adjustable angle.
- the pads and the footrest include means of adjustment allowing the user to find the most comfortable position.
- the plate is slidably mounted on a pivoting structure, so as to make it possible to adjust the distance between the footrest and the axis of the knees during variations in the angle of inclination.
- the sliding stroke of the tray is however not limited to this adaptation, it is in fact advantageously provided to be able to extend the deployment of the tray until the pallet of the footrest comes into contact with the ground, in order to facilitate the transfer of the user.
- the footrest / legrest has two functionalities, on the one hand the pivoting associated with a compensating elongation, and on the other hand the elongation until resting on the ground.
- the first functionality which combines two movements, is carried out in a known manner through an electric cylinder connecting the two pivoting parts, so that tilting in one direction or the other automatically generates the lengthening or shortening of the rest. -legs .
- the second functionality consists of a purely rectilinear displacement which therefore cannot be achieved by the cylinder of the other functionality, so that this displacement is generated, in a manner known per se, by a second cylinder, dedicated to this functionality.
- the known footrest devices which have these two functionalities, are therefore necessarily equipped with two jacks, namely electric jacks.
- the present invention aims to provide a telescopic tilting footrest device for a motorized wheelchair, which has the two aforementioned features, but whose implementation requires only one cylinder.
- the telescopic reclining footrest device for a motorized wheelchair comprises a rolling frame on which is secured a chair comprising, in addition to a seat, a backrest and armrests, a legrest consisting of a top of pads for resting the calves and which is of adjustable angle and of adaptable length by being slidably mounted on a structure pivotally mounted on said frame, said plate comprising at its free end a footrest which is in the form of a adjustable angle pallet, said structure being pivotally mounted between two extreme deployed and folded positions, while said legrest is deployable to the ground by the movement of said plate when said structure is in a vertical or substantially vertical position, the pivoting of said structure as well as the sliding of said legrest being ensured by motor means, and it is characterized in that said motor means consist of a single cylinder secured on the one hand in a pivoting manner to said structure and on the other hand in a pivoting manner to said frame at the through a pivot eccentric with respect to the pivot axis of said structure
- the device comprises two intermediate return pulleys, one secured to the pivoting structure close to the pivot axis of the latter, the other secured to the free end of a connecting rod whose other end is pivotally mounted on the frame, the strap or the like passing successively, from said frame, over the pulley of said connecting rod then over the pulley of said structure before being attached to the plate.
- the pivot of the cylinder pulley is movable in translation in a guide path of the frame, of substantially vertical orientation, the end of which is closest to the axis of pivoting of the structure, corresponds to the position allowing the pivoting of the latter.
- the device comprises means for immobilizing the pivot of the cylinder pulley in the guide path at its end closest to the pivot axis of the structure, when deployment and withdrawal operations of the latter.
- the means capable of immobilizing the pivot consist of at least one means with controlled compression.
- the controlled compression means consists of a gas jack.
- Figure 1 shows a schematic side view of a footrest device according to the invention in the deployed position horizontally
- Figure 2 shows a schematic side view of the same footrest device feet being folded
- Figure 3 shows a schematic side view of the same footrest device in the folded position
- Figure 4 shows a schematic side view of the same footrest device in the deployed position down to the ground .
- a part 1 of the frame of a motorized wheelchair not shown, as well as a footrest device 2 according to the invention, carried by a structure 3 pivotally mounted on the part 1 around a shaft 10, with a horizontal and transverse axis with respect to the direction of movement of the chair.
- the footrest device 2 comprises a plate 4 mounted to slide on the structure 3 through a slide 34 , and which comprises, on the one hand, at the top of the pads 40 , of which only one is visible, intended to rest the legs, and more particularly the calves, and on the other hand at its free end, a footrest 41.
- structure 3 is pivotally mounted to pass from a substantially horizontal deployed position, shown in FIG. 1, to a folded, substantially vertical position, shown in FIG.
- the pivoting of the structure 3 is ensured by a jack 30, preferably electric, secured in pivoting to the structure 3, and whose rod 31 is made integral with the part 1 of the frame.
- the end of the rod 31 carries a pulley 11 via a pivot 12 integral with part 1 of the frame.
- the pivot 12, which has an axis parallel to that of the shaft 10, is mounted so as to be able to move in translation in a guide groove 13 that comprises part 1, and which extends substantially vertically. In fact, the latter has two parallel grooves 13, of which only one is visible, in each of which an end part 15 of the pivot 12 can move.
- part 1 of the frame includes a gas spring 14, which pushes back and blocks the pivot 12 in the upper end 16 of the groove 13, which is eccentric with respect to the axis of the shaft 10.
- the leg rest should lengthen when deployed, and vice versa when folded, which is obtained by the sliding of the plate 4 on the structure 3.
- This sliding in one direction or another is obtained by shortening or lengthening a strap or the like 5, one end 50 of which is fixed to the movable plate 4, while the other end 51 is fixed to part 1 of the frame.
- a strap is preferably used.
- the structure 3 comprises, near the shaft 10, a deflection pulley 33.
- the strap 5 passes successively, from the fixing of its end 50 on the movable plate 4, on the return pulley 33, on the return pulley 32 passing under the pivoting structure 3, then on the pulley 11 before being fixed to part 1 of the frame by its end 51.
- the link 17 is constrained to folding and its deflection pulley 32 moves away from the deflection pulley 33, which lengthens the distance between the ends 50 and 51 of the strap 5 and therefore slide the tray
- This configuration allows the movement of the plate 4 according to the pivoting of the structure 3.
- gas spring 14 consists of an economical solution, it is however possible to envisage other solutions, a compression spring for example, the main thing consisting in allowing the pivot 12 to be immobilized at the upper end. 16 of the groove 13, during the pivoting movements of the structure 3.
- the two functionalities of the footrest device according to the invention namely its pivoting with adaptability of the length, and the deployment to the ground, are ensured by means of a single cylinder.
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)
- Passenger Equipment (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2114639 | 2021-12-29 | ||
| FR2114642 | 2021-12-29 | ||
| PCT/EP2022/079871 WO2023126089A1 (fr) | 2021-12-29 | 2022-10-26 | Dispositif de repose-pieds inclinable telescopique pour fauteuil roulant motorise |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP4456852A1 true EP4456852A1 (fr) | 2024-11-06 |
| EP4456852C0 EP4456852C0 (fr) | 2025-12-03 |
| EP4456852B1 EP4456852B1 (fr) | 2025-12-03 |
Family
ID=84360688
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22809125.2A Active EP4456852B1 (fr) | 2021-12-29 | 2022-10-26 | Dispositif de repose-pieds inclinable telescopique pour fauteuil roulant motorise |
| EP22809436.3A Active EP4456853B1 (fr) | 2021-12-29 | 2022-10-27 | Dispositif de repose-jambes inclinable pour fauteuil roulant |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22809436.3A Active EP4456853B1 (fr) | 2021-12-29 | 2022-10-27 | Dispositif de repose-jambes inclinable pour fauteuil roulant |
Country Status (3)
| Country | Link |
|---|---|
| US (2) | US20250057711A1 (fr) |
| EP (2) | EP4456852B1 (fr) |
| WO (2) | WO2023126089A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113273842B (zh) * | 2021-06-11 | 2025-06-24 | 广东佳居家具有限公司 | 一种支架结构以及座椅 |
| TWI844337B (zh) * | 2023-04-18 | 2024-06-01 | 國睦工業股份有限公司 | 輪椅的小腿靠撐結構 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2330299B (en) * | 1997-10-07 | 2002-02-27 | Sunrise Medical Ltd | Leg support for wheelchair |
| DE10104962C1 (de) * | 2001-02-03 | 2002-06-27 | Kusch Co Sitzmoebel | Fußstütze für einen Liegesessel oder Arbeitsplatzstuhl |
| CA2359379A1 (fr) * | 2001-10-19 | 2003-04-19 | Richard Eakins | Appui-jambes relevable |
| NL2005469C2 (nl) * | 2010-10-06 | 2012-04-11 | Handicare B V | Rolstoel. |
| DE202012103029U1 (de) * | 2012-08-10 | 2012-09-03 | Mu-Chang Tsai | Rollstuhl mit verstellbaren Beinstützen |
-
2022
- 2022-10-26 US US18/723,461 patent/US20250057711A1/en active Pending
- 2022-10-26 WO PCT/EP2022/079871 patent/WO2023126089A1/fr not_active Ceased
- 2022-10-26 EP EP22809125.2A patent/EP4456852B1/fr active Active
- 2022-10-27 WO PCT/EP2022/080034 patent/WO2023126090A1/fr not_active Ceased
- 2022-10-27 EP EP22809436.3A patent/EP4456853B1/fr active Active
- 2022-10-27 US US18/723,983 patent/US20250064655A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US20250057711A1 (en) | 2025-02-20 |
| WO2023126089A1 (fr) | 2023-07-06 |
| WO2023126090A1 (fr) | 2023-07-06 |
| US20250064655A1 (en) | 2025-02-27 |
| EP4456853A1 (fr) | 2024-11-06 |
| EP4456852C0 (fr) | 2025-12-03 |
| EP4456852B1 (fr) | 2025-12-03 |
| EP4456853B1 (fr) | 2025-11-19 |
| EP4456853C0 (fr) | 2025-11-19 |
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