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 wheelchairs, and more particularly to a reclining legrest device.
• a wheelchair mainly comprises a wheeled frame on which is fixed a chair comprising, in addition to a seat, a backrest and armrests, a legrest, consisting of a plate lined with pads to rest the calves and which is of adjustable angle by being pivotally mounted on the frame, so that the user can find the most comfortable position possible between the two extreme positions, bent legs and extended legs
• the legrest comprises at its free end a footrest, which is in the form of a platform or pallet with an adjustable angle.
• the pads and the footrest preferably include adjustment means, allowing the user to find the most comfortable position.
• the distance between the footrest and the axis of the knee articulation decreases, thus leaving less room for the legs, and vice versa when folding .
• the legrest device comprises a structure pivotally mounted on the frame of the chair on which can slide longitudinally, perpendicular to the pivot axis, the plate lined with pads, so as to allow adaptation and adjusting the distance between the footrest and the axis of the knees.
• the object of the present invention is to remedy the various aforementioned drawbacks, by proposing a leg-rest device of simple design, which makes it possible to pass from a bent legs position to an elongated legs position and vice versa, without modifying the initial position chosen to be the more comfortable for the user.
• the reclining legrest device for a wheelchair comprises a wheeled frame on which is secured a wheelchair comprising, in addition to a seat, a backrest and armrests, said legrest comprising a structure pivotally mounted on said chassis, so that the user can find a position between two extreme positions, bent legs and extended legs, said leg rest also comprising a plate or the like furnished with pads for resting the calves, and which is slidably mounted on said pivoting structure, so as to allow adjustment in length and adaptation of the positioning of said pads, and it is characterized in that said plate is slidably mounted on said pivoting structure through a curved guide path, which is convex on the supporting side legs.
• the curvature of the path traveled by the plate during its translation generates an elevation of said plate relative to the general plane of the pivoting structure, sufficient to compensate for the offset due to the pivoting.
• the pivoting structure is moved by an electric cylinder, secured to said pivoting structure, and whose rod is secured to the frame, through an axis pivot eccentric with respect to that of pivoting of said pivoting structure.
• the movable plate is connected to the frame by means of a strap or the like, which passes over return pulleys, one of which is movable under the effect of pivoting, so as to generate a modification of the path of said strap or the like during the folding operation, and vice versa, and therefore the displacement of said movable plate.
• the pivoting structure comprises a first return pulley close to the pivot axis of said pivoting structure, while a connecting rod pivotally mounted by one end on the frame and extending under said pivoting structure, comprises at its other end a deflection pulley capable of moving away from said first deflection pulley during the folding operation, and vice versa.
• - figure 1 represents a schematic view in side elevation of a leg rest device according to the invention in the folded position
• - figure 2 shows a schematic side elevation view of the same resting device - legs in an intermediate deployment position
• - Figure 3 shows a schematic side elevational view of the same leg rest device in the deployed position.
• a legrest device which comprises a structure 1 pivotally mounted on a part 2 of a wheelchair frame, not shown, around a pivot 20 and under the action of a cylinder 3, while a plate 4 is slidably mounted on the structure 1.
• This plate 4 is equipped with pads 40, of which only one is visible, intended to support the calves of the user, and comprises in its free end a footplate 41.
• the pivoting of the structure 1 is ensured by the cylinder 3, which is preferably electric, secured in pivoting to the structure 2, and whose rod 30 is secured to the part 2 of the frame.
• the end of the rod 30 carries a pulley 31 via a pivot 32 integral with part 2 of the frame, and with an axis parallel to that of the pivot 20, and eccentric with respect to the latter. It will be understood that the extension stroke of rod 30 causes the deployment of the structure 1, as shown in Figures 2 and 3.
• Sliding in one direction or another is obtained by modifying the path traveled by a strap or the like 5, shown in transparency in these figures, by lengthening or shortening the distance separating its two ends, one of which 50 is fixed to the movable plate 4, while the other 51 is fixed to part 2 of the frame.
• a strap is preferably used.
• structure 1 comprises, close to pivot 20, a deflection pulley 34.
• the strap 5 passes successively, from the fixing of its end 50 on the movable plate 4, over the deflection pulley 34, over the deflection pulley 33 passing under the pivoting structure 1, then over the pulley 31 before be fixed to part 2 of the frame by its end 51.
• the connecting rod 21 is constrained to folding and its deflection pulley 33 moves away from the deflection pulley 34, which lengthens the path of the strap 5 and therefore causes the plate 4 to slide towards the pivot 20.
• the deflection pulley 33 approaches of the return pulley 34, which shortens the path of the strap 5 and allows the plate 4 to move away from the pivot 20.
• This configuration allows the movement of the plate 4 according to the pivoting of the structure 1 under the action of the cylinder 3.
• the sliding of the plate 4 on the structure 1 is carried out through a guide path 10 of curved shape, convex upwards, that is to say in the direction of the plate 4.
• the height adjustment of the pads 40 is performed automatically during pivoting.

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)

Applications Claiming Priority (3)

Publications (3)

Family

ID=84360688

Family Applications (2)

Family Applications Before (1)

Country Status (3)

Families Citing this family (2)

Family Cites Families (5)

• 2022
  • 2022-10-26 WO PCT/EP2022/079871 patent/WO2023126089A1/fr not_active Ceased
  • 2022-10-26 US US18/723,461 patent/US20250057711A1/en active Pending
  • 2022-10-26 EP EP22809125.2A patent/EP4456852B1/de active Active
  • 2022-10-27 US US18/723,983 patent/US20250064655A1/en active Pending
  • 2022-10-27 WO PCT/EP2022/080034 patent/WO2023126090A1/fr not_active Ceased
  • 2022-10-27 EP EP22809436.3A patent/EP4456853B1/de active Active

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