WO2007049301A2 - Chaise roulante presentant un bras unique de commande - Google Patents

Chaise roulante presentant un bras unique de commande Download PDF

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Publication number
WO2007049301A2
WO2007049301A2 PCT/IN2006/000418 IN2006000418W WO2007049301A2 WO 2007049301 A2 WO2007049301 A2 WO 2007049301A2 IN 2006000418 W IN2006000418 W IN 2006000418W WO 2007049301 A2 WO2007049301 A2 WO 2007049301A2
Authority
WO
WIPO (PCT)
Prior art keywords
wheelchair
wheel
motor
drive shaft
shaft
Prior art date
Application number
PCT/IN2006/000418
Other languages
English (en)
Other versions
WO2007049301A3 (fr
Inventor
Muslim Khan
Uday Karandikar
Dheerendra Kumar Singh
Original Assignee
Multivac India Private Limited
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 Multivac India Private Limited filed Critical Multivac India Private Limited
Priority to PCT/IN2006/000418 priority Critical patent/WO2007049301A2/fr
Publication of WO2007049301A2 publication Critical patent/WO2007049301A2/fr
Publication of WO2007049301A3 publication Critical patent/WO2007049301A3/fr

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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
    • A61G5/04—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
    • A61G5/041—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven having a specific drive-type
    • A61G5/045—Rear wheel drive
    • 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
    • A61G5/1051—Arrangements for steering
    • 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
    • A61G5/1054—Large wheels, e.g. higher than the seat portion
    • 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
    • A61G5/121—Rests specially adapted therefor, e.g. for the head or the feet for head or neck
    • 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
    • A61G5/125—Rests specially adapted therefor, e.g. for the head or the feet for arms
    • 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
    • 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
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/05—Parts, details or accessories of beds
    • A61G7/0528—Steering or braking devices for castor wheels
    • 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
    • A61G2203/10—General characteristics of devices characterised by specific control means, e.g. for adjustment or steering
    • A61G2203/14—Joysticks

Definitions

  • the present invention relates to a single control wheelchair. More particularly, the present invention relates to a single arm control and manually steerable single motor driven reversible movable power wheelchair.
  • Conventional wheelchairs which are manually driven include a pair of large wheels mounted at the rear and a pair of smaller wheels mounted at the front side.
  • the patient using the wheelchair is required to rotate push rims provided on the outer portion of each large wheel.
  • this results in manual exertion for the patient, which is particularly undesirable in the case of cardiac patients.
  • the wheelchair requires to be pushed by an attendant thereby limiting the independence of movement of the patient.
  • Other problems associated with conventional wheelchairs are that people bound to wheelchairs may not possess the age or level of mental development to enable them to maturely handle a standard joystick-type powered wheelchair. For example, imagine a two year old child with a degenerative muscular disease that prevents her from using a fully manual wheel chair.
  • the wheelchair is provided with a ring-shaped driving wheel (or a wheel for a handle grip) on the outsides of the both wheels thereof, respectively, which is rolled and moved by using the hand of a user.
  • the conventional wheelchair does not have any problem in rolling and moving by the hands of the user, but it is found that it is not convenient for those who are one armed as it becomes exceedingly difficult to use and move the wheelchair in a manual way.
  • a variety of transmission wheelchairs capable of being driven in a motor-driven way are developed.
  • the conventionally developed transmission wheelchairs have the defects that the transmission is configured in a complicated manner and the weight thereof is substantially heavy, such that it is greatly restricted to the user who is a disabled person.
  • the conventional transmission wheelchairs are used exclusively for the motor- driven way, and upon demand of use in the manual way, they are inconvenient to change to the desired manual way. Actually, due to the heavy weight of the transmission, it is impossible to use the manual way.
  • US Patent 6883632 teaches an input device (such as a rotational hand crank) which receives a constantly-applied motion, and outputs a signal to a controller which, in turn, sends an appropriate signal to an electric motor, which is connected to the chair via a mechanical transmission.
  • the wheel is removably mounted in front of a wheelchair such that the front wheels of the chair are lifted above the ground.
  • the device is generally steered manually, such as by pivoting an input device to one side.
  • US Patent 6375209 teaches a wheelchair which has a seat assembly with arm rests locked in upright positions and movable to down positions provide lateral access to seat for a person.
  • Electric motors connected to batteries and a motor controller are used to rotate the drive wheels of the wheelchair. Hooks, pulleys, and power transmissions transmit power from the electric motors to the wheels.
  • the entire components of the drive are located within a casing mounted on the frame of the wheelchair.
  • Wheelchairs powered with reversible electric motors are used to provide motorized mobility to persons. Examples of powered wheelchairs are disclosed by G. G. Goertzen, N. J. Curran and J. H. Molnar in U.S. Pat. No. 5,575,348 and J. B. Richey, T. D.
  • Joy sticks located adjacent the arm rests are used by persons seated in the seat units to actuate the control units which control the operation of the motors to move the steer of the wheelchair.
  • the electric motors, speed reducing gear boxes, electronic control units and battery re-chargers are located below the level of the seat units and are exposed to environmental elements, such as dirt, mud, water, ice and snow.
  • US Patent 6408961 teaches an apparatus for driving electrically a hand-operated wheelchair which includes two driving devices, a power supply device, and a control device.
  • Each driving device includes a motor unit provided with a motor shaft and a transmission unit that is adapted to be mounted removably on a respective one of the wheels of the wheelchair so as to transfer rotation of the motor shaft to the respective one of the wheels in such a manner that each of the wheels rotates at a speed smaller than that of the respective motor shaft.
  • the power supply device is adapted to be disposed on a chair frame for supplying electrical power to the motor units.
  • the control device controls speed ratios of the motor shafts of the motor units so as to be adapted to steer the wheelchair
  • US Patent 6615937 teaches a motorized wheelchair which is provided with a rate-of- turn feedback sensor and with forward/reverse motion, lateral motion, and vertical motion acceleration feedback sensors that are integrated into a closed-loop wheelchair servo control system to differentially control the rotational speed of wheelchair opposed motor- driven wheels and thereby obtain improved wheelchair motion stability through reduction/elimination of likely wheelchair spin-out and wheelchair tipping during wheelchair operation
  • the center of gravity with the occupant included is generally positioned at a level that is above the level of the drive wheel axis of rotation, and thus braking forces generated at the drive wheels during wheelchair forward motion, when combined with the momentum forces acting through the center of gravity, create wheelchair forward tipping moments which further contribute to wheelchair motion instability.
  • a typical maximum stable speed for rear-wheel drive wheelchairs is about 7+ miles per hour.
  • the typical maximum speed for front-wheel drive wheelchairs is approximately 4 miles per hour if the drive wheel differential speed is monitored with motor current/voltage sensing. If the front drive wheels are monitored with tachometers and/or position sensors, speeds of approximately 5 miles per hour can be achieved. However, in either instance once the wheels start to slip, directional control is lost.
  • U.S. Pat. No. 5,246,082 discloses a motorized wheel for wheelchairs and the like, in which the wheel is designed to plug into a special socket on the wheelchair, and a hub against which the motor reacts is fixed relative to the frame by an arm, radially displaced from the axis of the hub, which fixes the hub to the frame of the chair.
  • U.S. Pat. No. 5,199,520 discloses a wheelchair with motorized wheels, in which the wheel hubs are permanently secured to the frame of the chair, and the wheels are removable from the hubs.
  • Both of these arrangements permit the wheels of a wheelchair or other vehicle to be removed when the vehicle is folded or otherwise prepared for transportation, but, in each case, the vehicle must be specially adapted for this purpose, and the wheels are not directly applicable to a wheelchair or other vehicle of which the hub's driving wheels are secured in tubular journals incorporated in the frame of the vehicles.
  • more effective and efficient control of the motors in the prior art arrangements in order to minimize electricity consumption and provide optimum assistance to a user or driver of the vehicle would be desirable. It is also important that a motorized wheel designed for application to vehicles originally designed for human propulsion does not overstress the frame of the vehicle.
  • US Patent 6547018 teaches a transmission for a wheelchair capable of selecting a manually operated manner and a motor-driven manner.
  • the transmission includes: a transmission unit installed on the wheelchair for driving the wheelchair; a clamping unit for fixing the transmission unit on the wheelchair; and a switching unit for switching the wheelchair in the manual and motor-driven ways; wherein the transmission unit comprises, driving rollers coupled to accelerator and decelerators connected to motors on the both sides of the interior of a casing, for driving both wheels, and a controller circuit-connected to the motors, a motor control circuit unit and a battery, for adjusting the transmission unit, wherein the switching unit comprises, a fixing clip assembled by means of the clamping unit with the casing of the transmission unit and having a locking projection locked or unlocked to/from a locking hole of a fixing part fixed on the frame of the wheelchair, a locker elastically coupled with first and second springs on the top and bottom portions of the interior of the fixing clip and for pulling upward by means of a handle, the locking projection elastically protruded on
  • Wheelchair drive units are well known accessories and fall into two distinct categories.
  • the first category is mounted on the wheelchair and drives the tire of one or more wheelchair wheels.
  • the second category, into which the present invention falls, is attached to the wheelchair and has one or more independent drive wheels which rest on and drive against the ground.
  • the present invention provides a single arm control and manually steerable single motor driven reversible movable power wheelchair.
  • the problems of multiple arm controls and dual motor use in electric wheelchairs present in the prior art have been overcome in the present invention by providing a single common drive shaft at each end where a rear wheel of the chair is mounted.
  • One of the two rear wheels is fixed to the drive shaft and the other rear wheel is freely rotatable around the drive shaft, even when the drive shaft is stationary.
  • the drive shaft is connected to a single electric motor by a connecting means which can comprise of a chain, belt or gears in order to transmit power to rotate the drive shaft.
  • one electric PMDC brush or a brushless motor or a geared motor or an ungeared motor is connected to one rear wheel and the other rear wheel is freely rotatable around its axis.
  • the wheelchair of the invention is also provided with an offset between the two front wheels by means of mounting one front wheel on an angled fork of a predetermined angle to the vertical and freely rotatable around its own axes.
  • One front wheel is deliberately mounted on the vertical and straight fork and is connected to the steering mechanism in order to enable easy maneuverability without any extra power being required while the wheelchair is in forward or reverse motion.
  • Fig. I is a perspective view of the left front of a battery operated wheelchair using a steering mechanism, an accelerator, one straight revolving wheel and other inclined revolving wheel, single motor connected with common shaft and a set of batteries in accordance with the invention;
  • Fig. Il is a perspective view of the right rear of a battery operated wheelchair using a steering mechanism, an accelerator, one straight revolving wheel and other inclined revolving wheel, single motor connected with common shaft and a set of batteries in accordance with the invention;
  • Fig. Ill is an enlarged view of section "A" of Fig. Il showing drive mechanism assembly from right rear side of the wheelchair;
  • Fig. IV is a perspective view of the right front of a battery operated wheelchair using a steering mechanism, an accelerator, one straight revolving wheel and other inclined revolving wheel, single motor connected with common shaft and a set of batteries in accordance with the invention;
  • Fig. V is the enlarged view of section "A of Fig. IV and section "B" of Fig. V which is showing the assembly details of the steering mechanism.
  • Fig. Vl is a perspective view of the left rear of a battery operated wheelchair using a steering mechanism, an accelerator, one straight revolving wheel and other inclined revolving wheel, single motor connected with common shaft and a set of batteries in accordance with the invention;
  • Fig. VlI is the enlarged view of section "A of Fig 6 which is showing drive mechanism assembly from right rear side of the wheelchair.
  • Fig. VIII is a perspective view of wheelchair when it is moving reverse and showing position of the left revolving wheel.
  • Fig. IX is an enlarged view of section "A" of Fig. IX which is showing detailed mounting and front view of the electronic control unit.
  • Wheel 3.2 is rigidly locked with the common drive shaft 4.1 by means of two locking bushes 3.26 and 3.27 fitted within the hub 3.24.
  • Bush 3.26 and 3.27 are tightened by washer 3.29 and nylock nut 3.28 so that it presses the bush 3.26 and 3.27 and locks the hub
  • Rear wheel 3.1 hub 3.14 is mounted on the bearing 3.16 and 3.17.
  • Bearing 3.16 and 3.17 is mounted on the common drive shaft 4.1.
  • Axial movement of the Wheel 3.1 Hub 3.14 and bearing 3.16 and 3.17 is locked by washer 3.19 and nylock nut 3.18.
  • Wheel 3.1 is free to rotate around the common drive shaft 4.1 with help of bearing 3.16 and 3.17.
  • Differential speed between wheel 3.1 and 3.2 while turning is achieved by keeping wheel 3.1 free rotating around common drive shaft 4.1 and wheel 3.2 locked with common drive shaft 4.1.
  • motor 4.4 provides transmission to the common drive shaft 4.1 with help of timing pulley 4.2, timing pulley 4.5 and timing belt 4.3.
  • Timing pulley 4.5 is mounted on the motor 4.4 shafts 4.411 and is coupled with timing pulley 4.2 with the help of timing belt 4.3.
  • Timing pulley 4.2 is centrally mounted on the common drive shaft 4.1 and tightened with grub screw 4.21. Forward and reverse motion of the vehicle is controlled by the clockwise and anticlockwise rotation of the motor 4.4.
  • Permanent Magnet Direct Current Geared motor which may be an AC Motor/DC Motor/Brushless DC motor/servomotor or any other type of motor capable of delivering the required power and torque.
  • front revolving wheels 2.1 and 2.2 are mounted away from rear wheels on the vertical pipe 1.1 1 and 1.21 of mainframe 1.
  • Revolving wheel 2.1 is mounted in the vertical pipe 1.11 with help of revolving wheel bearing housing bush 1.16.
  • Two bearings 1.161 and 1.162 are fitted in the revolving wheel bearing housing bush 1.16.
  • Revolving wheel 2.1 mounting shaft 2.14 is fitted in the bearing 1.161 and 1.162 and locked by washer 2.191 and nylock nut 2.19.
  • Revolving wheel 2.1 fork 2.13 is inclined and free to rotate around the axis of shaft 2,14.
  • the inclination angle of the fork 2.13 with respect to the shaft 2.14 may range between 8° - 44° and best suited to 30°.
  • Inclined revolving wheel takes is respective position depending upon radius of turn.
  • revolving wheel 2.2 is rotatably mounted on revolving wheel bearing housing bush 1.26.
  • Revolving wheel bearing housing bush 1.26 is welded with vertical pipe 1.21 of mainframe 1.
  • Two bearings 1.261 and 1.262 are fitted in the revolving wheel bearing housing bush 1.26.
  • Revolving wheel 2.2 mounting shaft 2.24 is rotatably fitted in the bearing 1.261 and 1.262 and its axial movement is locked by washer 1.291 and nylock nut 2.29.
  • Revolving wheel 2.2 fork 2.23 is vertical and welded with mounting shaft 2.24.
  • Fork 2.23 is connected with steering pipe 5.1 and tightened by hex bolt 5.12 and washer 5.13.
  • Steering pipe 5.1 is rotatably mounted on the steering mounting assembly 5.2 through a shaft 5.11.
  • Steering mounting assembly 5.2 is fixed by push fitting steering mounting assembly-holding pipe 5.21 into the vertical pipe 1.21 of main frame 1.
  • Steering mounting assembly holding pipe 5.21 is locked with vertical pipe 1.21 by hex bolt 5.24.
  • Steering mounting assembly 5.2 is fitted with two bearings 5.22 and 5.23.
  • Shaft 5.11 is mounted through bearing 5.22 and 5.23 and locked by hex bolt 5.15 and washer 5.16.
  • Axis of shaft 5.11 and axis shaft 2.24 is concentric.
  • Steering pipe 5.1 and revolving wheel 2.2 rotates together around the same axis.
  • Steering pipe 5.1 is further bolted with two mounting bolts with another steering pipe 5.3.
  • Steering pipe 5.3 has got housing for brake wire, brake switch and maneuvering handle.
  • maneuvering handle 5.4 is pivotally mounted with steering pipe 5.3 with a help of a bolt 5.41 nut 5.42 and washer 5.43.
  • a PVC handle grip 5.44 is fitted over the maneuvering handle for ease of operation. Up and down movement of the maneuvering handle 5.4 apply and releases the brake of the rear wheels 3.1 and 3.2.
  • Brake wire 5.5 and 5.6 is mounted on steering pipe 5.3. Brake wire 5.5 and 5.6 connected with the maneuvering handle 5.4 with the help of stud 5.7. Other side of brake wire 5.5 and 5.6 are connected to brake assembly 5.8 and 5.9 respectively.
  • accelerator assembly 8 is mounted on the maneuvering handle 5.4 with help of U clamp 8.4, screw 8.41 and washer 8.42. Wheelchair will start by pressing accelerator assembly 8 Knob 8.5. By pressing/releasing Knob 8.5 of accelerator assembly 8 increases/decreases the wheelchair speed. Accelerator assembly 8 Knob 8.5 at its outermost position will stop the motor 4.4.
  • Three LED on the accelerator assembly 8 gives the information about the battery status. Green LED 8.3 indicates that battery charge level is 100% to 40% of the usable capacity of the battery. Yellow LED 8.2 indicates battery charge level is below 40% of the usable capacity of the battery. Red LED 8.1 indicates that battery is fully discharged and this will stop the wheelchair operation.
  • Accelerator assembly 8 is connected with a four-core cable with the electronic controller 7.2 mounted in the Electronic Control Unit 7.
  • Brake Operated Micro switch (not shown in Fig) is fitted within the steering pipe 5.3 and its lever is connected with maneuvering handle 5.4. Whenever brake is applied it gives signal to the electronic controller 7.2 mounted in the Electronic Control Unit 7 and electronic controller 7.2 stops the operation. So wheel chair will not start if brake is applied.
  • a selector switch assembly 9 is provided on the same side of the steering assembly for directional control of the wheel chair. It has got three positions named "FWD. - OFF - REV". This is specifically done for single-handed control of wheel chair.
  • Selector switch 9.1 is connected in between electronic controller 7.2 and motor 4.4.
  • Selector switch 9.1 interchanges the wire connected of the motor 4.4 to change the direction of its rotation.
  • electronic Control unit 7 is fitted on angle 1.14 and 1.25 on mainframe 1. It is consisting of MCB 7.4, Key switch 7.5, battery charger 7.3, battery charging level indicator 7.32, battery charging socket 7.31 and electronic controller 7.2.
  • Key switch 7.5 To start Wheelchair first of all switch on MCB 7.4 then rotate key switch 7.5 clockwise. Green LED 8.3 and Yellow LED 8.2 on accelerator assembly 8 will glow depending on the battery charge level.
  • selector switch 9.1 in FWD. position and press accelerator assembly 8 Knob 8.5 While moving forward the position of the revolving wheel 2.1 will be same as shown in Fig IV.
  • Revolving wheels 2.1 and 2.2 can be interchanged with each other and coupling of steering mechanism is done as described above.
  • Brake wires 5.5 and 5.6 are also capable of being interchanged for proper fixing.
  • Accelerator assembly electrical wire is provided of sufficient length so that shifting from right to left is not a problem.
  • the wheelchair of the invention is relatively inexpensive since it avoids the use of a duplicity of motors as well as complex electric control mechanisms therefor.
  • the wheelchair is also capable of single control, i.e. it can be operated by the patient using a single limb with the control means being provided on either arm of the wheelchair or as part of the footrest. The latter would enable a person who is physically challenged in both upper limbs to operate the wheelchair without any difficulty using his or her toes.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Otolaryngology (AREA)
  • Nursing (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)

Abstract

L'invention concerne une chaise roulante présentant une commande unique. En particulier, l'invention concerne une chaise roulante présentant un bras unique de commande, et une chaise roulante électrique mobile entraînée par un moteur réversible unique manuellement orientable.
PCT/IN2006/000418 2006-10-23 2006-10-23 Chaise roulante presentant un bras unique de commande WO2007049301A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IN2006/000418 WO2007049301A2 (fr) 2006-10-23 2006-10-23 Chaise roulante presentant un bras unique de commande

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IN2006/000418 WO2007049301A2 (fr) 2006-10-23 2006-10-23 Chaise roulante presentant un bras unique de commande

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Publication Number Publication Date
WO2007049301A2 true WO2007049301A2 (fr) 2007-05-03
WO2007049301A3 WO2007049301A3 (fr) 2007-11-08

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2003857C2 (en) * 2009-11-24 2011-05-25 Sunpex Technology Co POWER TRANSMISSION STRUCTURE OF SCOOTER.
CN102370548A (zh) * 2011-07-25 2012-03-14 卫美恒(苏州)医疗器械有限公司 单臂轮椅
FR3021866A1 (fr) * 2014-06-06 2015-12-11 Agece Ecole Centrale D Electronique Dispositif amovible de conduite d'un fauteuil roulant, assemblage amovible de conduite d'un fauteuil roulant et fauteuil roulant
EP3241535A1 (fr) * 2016-05-04 2017-11-08 Kam Wah Hui Fauteuil roulant
IT201600120097A1 (it) * 2016-11-28 2018-05-28 Giovanni Conte Carrozzina motorizzata per disabili o anziani.
EP3310313A4 (fr) * 2015-06-16 2018-12-26 Decon Wheel AB Unité d'entrainement pour fauteuil roulant, et fauteuil roulant comprenant une telle unité d'entrainement
EP3434245A1 (fr) * 2017-05-29 2019-01-30 Toyota Jidosha Kabushiki Kaisha Appareil à fonctionnement de fauteuil roulant électrique et son procédé de fonctionnement de véhicule
DE102022108906A1 (de) 2022-04-12 2023-10-12 Sunrise Medical Gmbh Bremsbetätigungsvorrichtung mit elektronischer Signalvorrichtung

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US5199520A (en) 1991-12-11 1993-04-06 Sen Jung Chen Wheeled chair
US5246082A (en) 1991-08-17 1993-09-21 Haas & Alber Haustechnik Und Apparatebau Gmbh Small vehicle, particularly rolling chair with foldable chair frame
US5575348A (en) 1994-04-15 1996-11-19 Invacare Corporation Powered wheelchair with adjustable center of gravity and independent suspension
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US6615937B2 (en) 1999-07-30 2003-09-09 Invacare Corporation Motorized wheelchairs
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US3387681A (en) * 1966-02-14 1968-06-11 Rodney R. Rabjohn Power operated wheel chair
US5135063A (en) * 1990-08-30 1992-08-04 Smucker Manufacturing, Inc. Power unit for driving manually-operated wheelchair
TW530645U (en) * 2002-07-12 2003-05-01 Simon Chu Detachable transmission mechanism for a wheel chair
JP2007125303A (ja) * 2005-11-07 2007-05-24 Seiwa Kogyo Kk 旋回規制装置および車椅子

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5094310A (en) 1988-11-17 1992-03-10 Invacare Corporation Powered wheelchair having transversely mounted drive mechanism
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NL2003857C2 (en) * 2009-11-24 2011-05-25 Sunpex Technology Co POWER TRANSMISSION STRUCTURE OF SCOOTER.
CN102370548A (zh) * 2011-07-25 2012-03-14 卫美恒(苏州)医疗器械有限公司 单臂轮椅
FR3021866A1 (fr) * 2014-06-06 2015-12-11 Agece Ecole Centrale D Electronique Dispositif amovible de conduite d'un fauteuil roulant, assemblage amovible de conduite d'un fauteuil roulant et fauteuil roulant
EP3310313A4 (fr) * 2015-06-16 2018-12-26 Decon Wheel AB Unité d'entrainement pour fauteuil roulant, et fauteuil roulant comprenant une telle unité d'entrainement
US10555846B2 (en) 2015-06-16 2020-02-11 Decon Wheel Ab Drive unit for a wheelchair and a wheelchair provided with such a drive unit
EP3241535A1 (fr) * 2016-05-04 2017-11-08 Kam Wah Hui Fauteuil roulant
IT201600120097A1 (it) * 2016-11-28 2018-05-28 Giovanni Conte Carrozzina motorizzata per disabili o anziani.
EP3326600A1 (fr) * 2016-11-28 2018-05-30 Giovanni Conte Fauteuil roulant motorisé pour utilisateurs handicapés ou âgés.
US10299973B2 (en) 2016-11-28 2019-05-28 Giovanni CONTE Motorized wheelchair for disabled or elderly users
EP3434245A1 (fr) * 2017-05-29 2019-01-30 Toyota Jidosha Kabushiki Kaisha Appareil à fonctionnement de fauteuil roulant électrique et son procédé de fonctionnement de véhicule
DE102022108906A1 (de) 2022-04-12 2023-10-12 Sunrise Medical Gmbh Bremsbetätigungsvorrichtung mit elektronischer Signalvorrichtung

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