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EP4072496A1 - Véhicule doté d'un siège transformable - Google Patents

Véhicule doté d'un siège transformable

Info

Publication number
EP4072496A1
EP4072496A1 EP20830319.8A EP20830319A EP4072496A1 EP 4072496 A1 EP4072496 A1 EP 4072496A1 EP 20830319 A EP20830319 A EP 20830319A EP 4072496 A1 EP4072496 A1 EP 4072496A1
Authority
EP
European Patent Office
Prior art keywords
seat
rider
saddle type
transforming
vehicle 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.)
Pending
Application number
EP20830319.8A
Other languages
German (de)
English (en)
Inventor
Ricardas GRISKA
Karolis GRISKA
Martynas GRISKA
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.)
Uab "chronus"
Original Assignee
Uab "chronus"
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Uab "chronus" filed Critical Uab "chronus"
Publication of EP4072496A1 publication Critical patent/EP4072496A1/fr
Pending legal-status Critical Current

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
    • A61G5/14—Standing-up or sitting-down aids
    • 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
    • A61G5/1081—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
    • A61G5/1091—Cushions, seats or abduction devices
    • 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
    • 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

Definitions

  • the present invention generally relates to a transforming seat with a lifting mechanism and a vehicle with a transforming seat.
  • a number of chairs for vehicles and more specifically for wheelchairs have been developed to lift the user from a sitting position to an eye level position of a standing person.
  • Wheelchairs with an automatic standing aid which can lift and tilt the user into a standing position and also lower the user back into a sitting position are often referred to as stand-up wheelchairs, examples of such devices are described in US5346280A and US6773032B2.
  • One disadvantage of the stand-up wheelchairs is a significant user’s weight transfer in to the lower limbs when the wheelchair is in standing position, the use of such device is complicated for paraplegics and the users who do not have legs.
  • Another disadvantage of the known chairs with lifting and tilting aid is the lack of stability of the user, when the user is in standing position partially supported from the back.
  • One more disadvantage of the stand-up wheelchairs is a complicated management of the centre of gravity, in some cases, management of the centre of gravity is significant, particularly in balancing personal vehicles, wheelchairs stand-up function generally require an additional mechanism to keep the centre of gravity stable in vertical axis.
  • the wheelchairs with an automatic lifting function which can lift the user in a sitting position up and lower down are often referred to as lifting wheelchairs, examples of such devices are described in US20190192362A1, EP3082706B1 and US5209322A.
  • One disadvantage of the lifting wheelchairs is an unnaturally looking high sitting position when the wheelchair is in a lifted position.
  • Another disadvantage of the lifting wheelchair is a significant space requirement in a lifted position.
  • An object of the present invention is a vehicle with a transforming seat which overcomes the disadvantages of the prior art devices described above, and which is configured to transform from a sitting position, where the rider is sitting on a relatively flat seat surface like sitting on a chair, to a riding position, where the rider is sitting on a saddle type seat like sitting on a horse or on a bicycle.
  • the vehicle of the present invention comprises: - a transforming seat configured to support the rider; a base platform configured to support the load including the transforming seat; a locomotion device coupled to the base platform and arranged to propel the vehicle.
  • the transforming seat comprises: - a saddle type seat configured to support the rider's pelvis; thigh rests configured to support the rider's thighs; a leg rests mechanism configured to support the rider's feet; a lifting mechanism configured to support the saddle type seat and perform seat transforming as well as lifting and lowering operations.
  • the transforming seat of the present invention is configured to transform from a first sitting position, where the saddle type seat and thigh rests form a relatively flat and relatively horizontal surface and leg rests are positioned in front of the seat, while the rider's knees and hip joints are bent at approximately 90 degrees, to a second riding position, where the saddle type seat is lifted relatively vertically remaining in a relatively horizontal state, while the thigh rests are inclined downwards in a relation to the saddle type seat, and the leg rests are shifted upwards and backwards and swivelled about an axis approximately perpendicular to the sagittal plane in order to provide the rider with a natural riding posture.
  • the support of the rider's pelvis remains constant, and since there is no tilt of the saddle type seat, no knee supports or additional rider’s body or lower legs immobilization is required. Additionally, when the rider is in a riding position the stability of the rider is increased compared to sitting on a flat seat because of the spatial support of pelvis and thighs.
  • the thigh rests of the transforming seat are pivotally connected to the saddle type seat in such a manner that allows the thigh rests to pivot from the first relatively horizontal position, where the saddle type seat and the thigh rests form a relatively flat surface, to the second position, where the thigh rests are inclined downwards in a relation to the saddle type seat.
  • Pivoting of the thigh rests can be carried out by actuators or by the system of levers and links, which is operatively connected between said thigh rests and the lifting mechanism.
  • Angle between the saddle type seat and the thigh rests may be adjustable in order to suit the desired angles of the rider's thighs.
  • the lifting mechanism of the present invention coupled between a base platform and the saddle type seat, is configured to lift the rider sitting on the saddle type seat to the eye level of a standing person, maintaining parallel and linear, relatively vertical nature of the motion of the saddle type seat, keeping the rider's torso generally upright during lifting and lowering operations and also maintaining relatively linear vertical movement of the rider's centre of gravity.
  • the lifting mechanism is designed as a double parallelogram lifting mechanism, including: a support frame coupled to the base platform, a lower riser, a floating frame, an upper riser and a lifting platform, wherein the lower riser is provided as parallelogram linkage, having at least one main link and at least one support link pivotally connected between the support frame and the floating frame, and an upper riser provided as parallelogram linkage, having at least one main link and at least one support link pivotally connected between the floating frame and the lifting platform, which is configured to carry a payload and to which the saddle type seat is coupled.
  • the double riser lifting mechanism further includes a synchronization mechanism that is constructed and arranged to maintain angles of the adjacent upper and lower risers, during the lifting and lowering operations of the lifting mechanism.
  • the synchronization mechanism is preferably mounted in the floating frame.
  • the synchronization mechanism includes: a pair of interlocking gear segments, the first of which shares a pivot axis with the end of the main link of the lower riser and is rigidly connected to said link, the second one shares a pivot axis with the end of the main link of the upper riser and is rigidly connected to a lever, which is pivotally mounted in said floating frame and shares a pivot axis with said end of the main link of the upper riser, and a compression link which is pivotally connected between said lever and the main link of the upper riser.
  • a gear ratio of the interlocking gear segments is 1.
  • the features of this design ensure linear and parallel nature of the lifting platform movement.
  • the lifting mechanism further includes a drive arranged to maintain lifting and lowering operations of the lifting mechanism, wherein the drive of the preferred embodiment of the present invention is operatively connected between the support frame and said lever of the synchronization mechanism.
  • the drive is preferably a linear actuator.
  • the lifting mechanism can further include a resilient member that allows the lifting mechanism to additionally operate as the suspension.
  • the compression link of the synchronization mechanism may further be replaced by a coil-over shock absorber or another resilient member to provide more comfortable riding. Resilient member transforms the upper riser of the lifting mechanism in to a trailing arm suspension.
  • the leg rests mechanism of the present invention can be designed as an independent mechanism or can be interconnected with the lifting mechanism preferably by the system of links and levers.
  • the leg rests are pivotally connected to the floating frame of the lifting mechanism, where pivot axis is approximately perpendicular to the sagittal plane, and swivel angle of the leg rests is controlled by linkage pivotally connected between said leg rests and a lever, which is rigidly connected to the toothed lever of the synchronization mechanism forming a bellcrank.
  • Position and pivoting angle of the leg rests may be adjustable in order to suit the desired angles of the rider's lower legs.
  • the transforming seat may further include a backrest configured to support the rider's back.
  • the backrest is preferably coupled to the saddle type seat and therefore the angle between the backrest and the saddle type seat remains the same during all movements of the transforming seat.
  • the lifting mechanism and seat components are interconnected to achieve the desired rider’s positioning with a minimum number of electro-mechanical components.
  • a single linear actuator is used for seat transformation processes.
  • the locomotion device of the vehicle with a transforming seat can be any device that can propel the vehicle with the rider, including, but not limited to, wheelchair undercarriages, motorized carts, self-balancing undercarriages, tracked undercarriages, propulsion devices having thrust producing units, aircrafts, cars, boats, hovercrafts, and the like and either combination of mentioned devices.
  • FIG. 1 is a perspective view of the vehicle with a transforming seat occupied by the rider in the second riding position in accordance with the embodiment, where the locomotion device is a two-wheeled self-balancing undercarriage.
  • FIG. 2 is a side view of the vehicle with a transforming seat in the first sitting position in accordance with the preferred embodiment.
  • FIG. 3 is a side view of the vehicle with a transforming seat in the second riding position in accordance with the preferred embodiment.
  • FIG. 4 is a fragmentary schematic illustration in side view of the transforming seat in accordance with the embodiment with alternative double riser lifting mechanism in the second riding position.
  • FIG. 5 is a fragmentary schematic illustration in side view of the transforming seat in accordance with the embodiment with alternative scissor lifting mechanism in the second riding position.
  • FIG. 6 is a fragmentary schematic illustration in side view of the transforming seat in accordance with the embodiment with alternative telescopic lifting mechanism in the second riding position.
  • FIG. 7 is a front view of the vehicle with a transforming seat in accordance with the embodiment, where the lifting mechanism includes a roll pivot.
  • FIG. 1 shows a perspective view of the vehicle with a transforming seat occupied by the rider 1 in the embodiment, where the locomotion device is a self-balancing undercarriage 6, coupled to the base platform 9 and arranged to propel the vehicle, comprising: two wheels 7 that are arranged substantially side-by-side at both sides of the base platform 9 in a direction orthogonal to the traveling direction, electric drives configured to apply torque to the wheels and a controller configured to control the locomotion device and to maintain the balanced state of the vehicle occupied by the rider, where speed and acceleration of the self-balancing locomotion device is controlled by transferring the centre of gravity forward and backward.
  • FIG. 1 shows a perspective view of the vehicle with a transforming seat occupied by the rider 1 in the embodiment, where the locomotion device is a self-balancing undercarriage 6, coupled to the base platform 9 and arranged to propel the vehicle, comprising: two wheels 7 that are arranged substantially side-by-side at both sides of the base platform 9 in a direction orthogonal
  • the transforming seat in the FIG. 1 is in the second riding position, where the rider on the transforming seat is lifted by the lifting mechanism 5 to the eye level of a standing person, where the pelvis of the rider is supported by a relatively horizontal saddle type seat 2, thighs of the rider are supported by the thigh rests 3, which are inclined downwards in a relation to the saddle type seat 2, while the rider’s feet are supported by the leg rests 4, which are shifted upwards and backwards and swivelled about an axis approximately perpendicular to the sagittal plane in order to provide the rider 1 with a natural riding posture.
  • FIG. 2 and FIG. 3 show the preferred embodiment of the present invention, where a vehicle with a transforming seat comprises: - a transforming seat configured to support the rider; a base platform 9 configured to support the load including the transforming seat; a self-balancing locomotion device 6 coupled to the base platform 9 and arranged to propel the vehicle.
  • the transforming seat comprises: - a saddle type seat 2 configured to support the rider's pelvis; thigh rests 3 configured to support the rider's thighs; a leg rests mechanism 22 configured to support the rider's feet and calves; a lifting mechanism 21 configured to support the saddle type seat and perform seat transforming and lifting- lowering operations.
  • thigh rests 3 are pivotally connected to a saddle type seat 2 in such a manner that pivot axis is approximately perpendicular to the sagittal plane and allows the thigh rests to pivot from a relatively horizontal position as shown in FIG. 2, where the saddle type seat 2 and thigh rests 3 form a relatively flat surface, to a position, where the thigh rests 3 are inclined downwards in a relation to the saddle type seat 2, as shown in FIG. 3.
  • Pivoting of thigh rests is carried out by the system of links 23, which is pivotally attached between said thigh rests 3 and a link 14 of the upper riser 24 of the lifting mechanism 21. Angle between the saddle type seat and thigh rests may be adjusted in order to suit the desired angles of the rider's thighs.
  • a lifting mechanism 21 is provided as an articulated double parallelogram lifting mechanism, including a support frame 10 coupled to the base platform 9, a lower riser 27 provided as parallelogram linkage, having a main link 12 and a support link 11 pivotally connected between a support frame 10 and a floating frame 15, and an upper riser 24 provided as parallelogram linkage, having a main link 14 and a support link 13 pivotally connected between the floating frame 15 and a lifting platform 16.
  • the ends of the support links 11 and 13 of the upper and lower risers, which are pivotally connected to the floating frame 15, share the same pivot connection 28.
  • the lifting mechanism includes a synchronization mechanism 17 mounted in the floating frame and comprises: a pair of interlocking gear segments, the first of which 18 shares a pivot axis 29 with the end of the main link 12 of the lower riser 27 and is rigidly connected to said link, the second one 19 shares a pivot axis 30 with the end of the main link 14 of the upper riser 24 and is rigidly connected to a lever 33, which is pivotally mounted in said floating frame and shares a pivot axis 30 with the end of the main link 14 of the upper riser 24, and a compression link 35 which is pivotally attached between said lever 33 and the main link 14 of the upper riser 24.
  • a gear ratio of the interlocking gear segments is 1.
  • the compression link 35 of the synchronization mechanism 17 is an air shock absorber, which transforms the upper riser 24 of the lifting mechanism 21 in to a trailing arm suspension in order to provide more comfortable riding.
  • compression link 35 of the synchronization mechanism 17 can be replaced by a coil-over shock absorber or any other resilient member.
  • the lifting mechanism further includes a drive, which is a linear actuator 38, operatively connected between the support frame 10 and the lever 33 of the synchronization mechanism 17.
  • the transforming seat further comprises a leg rests mechanism 22, which includes leg rests 4, configured to support the rider's feet and calves.
  • the leg rests mechanism is designed in a manner that allows the leg rests 4 to move from the first sitting position, where leg rests 4 are positioned in front of the saddle type seat 2 as shown in FIG. 2, while the rider's knees and hip joints are bent at approximately 90 degrees, to the second riding position, where the leg rests 4 are moved upwards and backwards and swivelled about a pivot axis 25, which is approximately perpendicular to the sagittal plane, such that to provide the rider with a natural riding posture, as shown in FIG. 3.
  • the leg rests mechanism is interconnected with the lifting mechanism, where the leg rests 4 are pivotally connected to a floating frame 15 of the lifting mechanism, a pivot axis 25 is approximately perpendicular to the sagittal plane and swivel angle of the leg rests 4 is controlled by the linkage 26 pivotally connected between said leg rests and a lever 36, which is rigidly connected to the toothed lever 33 of the synchronization mechanism 17 forming a bellcrank.
  • components of the transforming seat are interconnected to achieve the desired rider’s positioning with a minimum number of electro-mechanical components.
  • a single linear actuator 38 is used to perform seat transforming and lifting- lowering operations.
  • pivoting of thigh rests can be carried out by the actuators or system of links 23, operatively connected between said thigh rests 3 and the lifting mechanism 21, 50, 60.
  • Angle between the saddle type seat 2 and thigh rests 3 may be adjustable in order to suit the desired angles of the rider's thighs.
  • a leg rests mechanism can be designed as an independent mechanism or can be interconnected with the lifting mechanism by the system of links and levers, examples of such systems 72, 63, 53 are shown in FIG. 4, FIG. 5 and FIG. 6.
  • the leg rests 4 can be interconnected with the lifting mechanism by the system of links 51, 52, as shown in FIG. 5 and FIG. 6, to provide vertical and horizontal components of motion of the leg rests, while pivoting of the leg rests 4 about pivot axis 25 can be carried out by actuators (not shown) or by the links 26 pivotally attached between said leg rests 4 and link 51 of said system of links.
  • Position and pivoting angle of the leg rests may be adjustable in order to suit the desired angles of the rider's lower legs.
  • the transforming seat can include a resilient member that is incorporated in the lifting mechanism and allows the lifting mechanism to additionally operate as the suspension.
  • the resilient member can be incorporated in the drive of the lifting mechanism.
  • the lifting mechanism can include a synchronization mechanism preferably mounted in the floating frame.
  • the synchronization mechanism can be provided as a system of links and levers, or as a pair of interlocking gear segments or other known in the art systems.
  • the lifting mechanism can include at least one drive that can be hydraulic, electric, pneumatic, or similar drive, which is operatively connected to the lifting mechanism and is capable to perform seat transforming and lifting- lowering operations.
  • the drive of the lifting mechanism can be designed as an impact absorbing member.
  • the lifting mechanism can be any known in art lifting mechanism that is capable to perform relatively parallel and linear lifting and lowering operations, including, but not limited to, a scissor lifting mechanism, example of scissor lifting mechanism 50 is shown in FIG. 5, or telescopic lifting mechanism, example of telescopic lifting mechanism 60 is shown in FIG.
  • the locomotion device of the vehicle with a transforming seat can be any device that can propel the vehicle and the rider, including, but not limited to, wheelchair undercarriages, motorized carts, self-balancing undercarriages, tracked undercarriages, propulsion devices having thrust producing units, aircrafts, cars, boats, hovercrafts, and the like and either combination of mentioned devices.
  • the vehicle with a transforming seat further includes retractable anti tipping legs for anti-tipping support of the vehicle.
  • the example of the anti-tipping legs 37, in retracted position, is shown in FIG. 2 and the example of the anti-tipping legs 37, in extracted position, is shown in FIG. 3.
  • the conventional occupation sensors can be used to detect when the rider gets on or off the vehicle.
  • the occupation sensors can be positioned in the seat or in the feet rest, or at other appropriate locations.
  • the transforming seat may further include a backrest configured to support the rider's back.
  • the backrest 8 is preferably coupled to the saddle type seat 2 and therefore the angle between the backrest and the saddle type seat remains the same during all movements of the transforming seat.
  • the lifting mechanism is coupled to the base platform 9 via a roll pivot 82, where pivot axis is relatively perpendicular to the frontal plane, and allows the lifting mechanism to tilt in frontal plane, in relation to the pivot support frame 81, which is coupled to the base platform 9, as shown in FIG. 7.
  • Pivoting of the lifting mechanism in relation to the base platform can be carried out by the drives, preferably linear actuators. Said pivoting of the lifting mechanism can be controlled by the inputs from the gyroscopes, inclinometers, and force sensors or similar in order to increase the rollover resistance of the vehicle with transforming seat, when moving on an uneven surface, slopes or when cornering.
  • the saddle type seat 2 is mounted on the lifting platform 16, 55, 65 by using the slide rails to allow fine adjustment of the position of centre of gravity by selectively moving said saddle type seat forward and backward in sagittal plane. Control of said movement can be carried out by an electrical or manual linear actuator connected between said lifting platform and said saddle type seat.
  • the transforming seat of the present invention can’t include thigh rests 3 or leg rests 4.
  • the locomotion device of the vehicle with a transforming seat is the propulsion device having thrust producing units coupled to the platform on which the rider is standing
  • the transforming seat can significantly reduce the load transfer in to the rider’s lower limbs.

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)
  • Motorcycle And Bicycle Frame (AREA)
  • Seats For Vehicles (AREA)
  • Automatic Cycles, And Cycles In General (AREA)

Abstract

L'invention concerne un véhicule doté d'un siège transformable, qui est configuré pour se transformer d'une position assise, dans laquelle l'utilisateur est assis sur une surface de siège relativement plate comme sur une chaise, à une position d'utilisation, dans laquelle l'utilisateur est assis sur un siège de type selle comme sur un cheval ou sur un vélo, et comprend un mécanisme de levage de siège, configuré pour soulever l'utilisateur assis sur un siège jusqu'au niveau de l'œil d'une personne debout, en maintenant la nature relativement verticale, parallèle et linéaire, du mouvement du siège, en maintenant le torse de l'utilisateur généralement vertical pendant les opérations de levage et d'abaissement, et en maintenant également un mouvement vertical relativement linéaire du centre de gravité de l'utilisateur.
EP20830319.8A 2019-12-10 2020-12-07 Véhicule doté d'un siège transformable Pending EP4072496A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LT2019084A LT6831B (lt) 2019-12-10 2019-12-10 Transporto priemonė su transformuojama kėde
PCT/IB2020/061577 WO2021116871A1 (fr) 2019-12-10 2020-12-07 Véhicule doté d'un siège transformable

Publications (1)

Publication Number Publication Date
EP4072496A1 true EP4072496A1 (fr) 2022-10-19

Family

ID=74104131

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20830319.8A Pending EP4072496A1 (fr) 2019-12-10 2020-12-07 Véhicule doté d'un siège transformable

Country Status (3)

Country Link
EP (1) EP4072496A1 (fr)
LT (1) LT6831B (fr)
WO (1) WO2021116871A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11559445B2 (en) * 2020-04-28 2023-01-24 Toyota Motor North America, Inc. Support devices including movable leg segments and methods for operating the same
US11827499B2 (en) * 2021-04-07 2023-11-28 Quen Lin Instruments Co., Ltd. Double parallelogram vertical lifting device
US12318336B2 (en) * 2021-08-04 2025-06-03 Levaté LLC Wheelchair lift and methods of making and using the same
CN114469551B (zh) * 2022-02-28 2023-05-16 安徽工程大学 一种多功能轮椅

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US5209322A (en) 1991-04-01 1993-05-11 Mcmahon Robert Elevated wheelchair device
US5346280A (en) 1992-03-31 1994-09-13 Deumite Norman A Chair with automatic standing aid
US6773032B2 (en) 1999-06-06 2004-08-10 Don L. Redman Ambulatory apparatus
GB2434525A (en) * 2006-01-25 2007-08-01 Patrick Armstrong Finlay A device for supporting a patient
US7850238B2 (en) * 2007-07-16 2010-12-14 Erb Scott C Dynamic furniture
US9358166B2 (en) * 2010-01-20 2016-06-07 The Uab Research Foundation Transport chairs
CN103717191A (zh) * 2011-07-07 2014-04-09 罗杰·肯尼斯·莱布 对于患者有用的座椅、框架和抬升服装
CA3234577A1 (fr) 2013-12-16 2015-06-25 James P. Mulhern Fauteuil roulant dont la hauteur peut etre elevee
US11191685B2 (en) 2016-02-27 2021-12-07 Pride Mobility Products Corporation Adjustable height wheelchair
CN205947936U (zh) * 2016-05-10 2017-02-15 力阳工业股份有限公司 起身辅助椅
JP6393810B1 (ja) * 2017-08-29 2018-09-19 キョウワアグメント株式会社 起立補助装置及びそれを取り付けた車椅子

Also Published As

Publication number Publication date
WO2021116871A4 (fr) 2021-08-05
LT6831B (lt) 2021-07-26
WO2021116871A1 (fr) 2021-06-17
LT2019084A (lt) 2021-06-25

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