WO1997000658A1 - Chaise roulante manuelle et electrique - Google Patents
Chaise roulante manuelle et electrique Download PDFInfo
- Publication number
- WO1997000658A1 WO1997000658A1 PCT/JP1996/001703 JP9601703W WO9700658A1 WO 1997000658 A1 WO1997000658 A1 WO 1997000658A1 JP 9601703 W JP9601703 W JP 9601703W WO 9700658 A1 WO9700658 A1 WO 9700658A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electric wheelchair
- hub
- hand rim
- wheel
- drive
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/043—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
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- 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
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- 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
- A61G5/048—Power-assistance activated by pushing on hand rim or on handlebar
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- 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
- A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
- A61G5/0808—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction
- A61G5/0816—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction folding side to side, e.g. reducing or expanding the overall width of the wheelchair
- A61G5/0825—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction folding side to side, e.g. reducing or expanding the overall width of the wheelchair comprising a scissor-type frame, e.g. having pivoting cross bars for enabling folding
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K7/0007—Disposition of motor in, or adjacent to, traction wheel the motor being electric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
- B60L15/2036—Electric differentials, e.g. for supporting steering vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/52—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by DC-motors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/66—Arrangements of batteries
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K2007/0046—Disposition of motor in, or adjacent to, traction wheel the motor moving together with the vehicle body, i.e. moving independently from the wheel axle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K2007/0061—Disposition of motor in, or adjacent to, traction wheel the motor axle being parallel to the wheel axle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/34—Wheel chairs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2220/00—Electrical machine types; Structures or applications thereof
- B60L2220/40—Electrical machine applications
- B60L2220/44—Wheel Hub motors, i.e. integrated in the wheel hub
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2220/00—Electrical machine types; Structures or applications thereof
- B60L2220/40—Electrical machine applications
- B60L2220/46—Wheel motors, i.e. motor connected to only one wheel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2220/00—Electrical machine types; Structures or applications thereof
- B60L2220/50—Structural details of electrical machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/421—Speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2250/00—Driver interactions
- B60L2250/24—Driver interactions by lever actuation
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2270/00—Problem solutions or means not otherwise provided for
- B60L2270/10—Emission reduction
- B60L2270/14—Emission reduction of noise
- B60L2270/145—Structure borne vibrations
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- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/80—Other vehicles not covered by groups B60Y2200/10 - B60Y2200/60
- B60Y2200/84—Wheelchairs
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10S180/00—Motor vehicles
- Y10S180/907—Motorized wheelchairs
Definitions
- the present invention relates to a manual electric wheelchair in which auxiliary power corresponding to the magnitude of human power applied to left and right driving wheels is applied to each driving wheel to rotate the driving wheels.
- Such a manual electric wheelchair is located between the manual wheelchair and the electric wheelchair, and detects human power intermittently applied to a pair of right driving wheels by human power detection means and outputs a detection signal as a signal.
- the power is transmitted to the control means by the transmission means, and the drive motor controlled by the control means generates auxiliary power corresponding to human power.
- the auxiliary power is transmitted to the left and right drive wheels via the power transmission means. This will reduce the physical burden on the occupants.
- the human power detection means, signal transmission means, control means, drive motor, and power transmission means that constitute the auxiliary power system are collectively maintained in one integrated state.
- the configuration to be arranged in the system has not been adopted, the number of wirings is large and long, and manufacturing and assembly are not easy, resulting in an increase in cost.
- the conventional manual electric wheelchair does not employ a configuration in which the auxiliary power system is disposed on each drive wheel independently of the vehicle body, so that the drive wheels can be easily attached to and detached from the vehicle body.
- the auxiliary power system is disposed on each drive wheel independently of the vehicle body, so that the drive wheels can be easily attached to and detached from the vehicle body.
- portability and storage are poor.
- the object of the present invention is to realize a compact and rational arrangement of the auxiliary power system, to reduce and shorten wirings, and to facilitate manufacturing and assembly, thereby achieving cost reduction.
- Another object of the present invention is to provide a hand-operated electric wheelchair which can be easily attached and detached to and from a vehicle body and which is excellent in portability and storage.
- the auxiliary power system is installed symmetrically on the outer peripheral side of each drive wheel, so the external dimensions of the wheelchair may become large and it may be difficult to handle it. > The wheelchair cannot be easily folded when not in use.
- an object of the present invention is to provide a manually operated electric wheelchair that can be compactly sized by effective use of space, and can increase the storage capacity of the wheelchair while improving the mass production effect. is there.
- the hand rim is supported rotatably relative to the drive wheel, and an elastic member such as a spring is interposed between the two.
- the hand rim is rotatably supported on a small diameter axle, so that the support rigidity of the hand rim is low and the occupant lifts up (occupant force). 5 There was a possibility that the player could not fully perform the operation of lifting his / her weight using the hand rim as a fulcrum when getting on and off.
- the object of the present invention is to increase the support rigidity of the hand rim by supporting the hand rim on the hub of the drive wheel, which is capable of high-precision machining and has high rigidity, to achieve smooth rotation and use of the hand rim. It is an object of the present invention to provide a manual electric wheelchair that enables an occupant to perform a lift-up operation.
- the offset amount in the axial direction (vehicle width direction) between the operation part of the hand rim (the part to be gripped by the occupant) and the rotation support part is large, the lateral moment acting on the hand rim (the hand rim The moment of bending in the lateral direction about the rotation support part increases, and the lateral play of the hand rim s increases. Also occur in the operation of force s worsen only force ⁇ problem of durability force 5 low underneath the bearing provided on the rotating support.
- an object of the present invention is to increase the operability of the hand rim by suppressing the lateral lash of the hand rim, and to improve the durability of the bearing of the rotary support portion of the hand rim.
- An object of the present invention is to provide an electric wheelchair.
- the above-described human power detecting means composed of a spring potentiometer or the like needs to stably maintain high detection accuracy, and therefore requires high waterproofness and dustproofness.
- an object of the present invention is to provide a manual electric wheelchair which can ensure high detection accuracy stably by human power detection means.
- the power of the battery as a power source is indispensable for the manual electric wheelchair
- the power supplied from the battery to the driving mode and the control means is also a main switch which supplies 0 N / 0 FF from the battery. If the main switch is integrated with the drive wheels and the main switch is configured to be detachable from the vehicle body together with the drive wheels, the electric wiring connecting the main switch and the notch is shortened, and the maneuverability of the drive wheels is improved. The ability to facilitate desorption is expected.
- the invention described in claim 1 is characterized in that human power applied to a pair of drive wheels is detected by human power detection means, and the detection signal is sent to control means by signal transmission means.
- a set of signal transmission means, control means, drive motors and power transmission means are arranged around the axle of a hub of each of the drive wheels and a fixed plate adjacent to the hub and fixed to the frame by a frame. It is characterized in that it is detachable from the vehicle body including the fixing plate.
- the invention set forth in claim 2 is characterized in that, in the invention set forth in claim 1, the axle is detachable from the vehicle body together with the drive wheels and the fixed plate.
- the invention according to claim 3 is the invention according to claim 1 or 2, wherein the drive motor and the control means are arranged on the fixed plate, Wherein the human power detecting means is provided.
- the invention according to claim 4 is the invention according to claim 3, wherein the fixed plate, the drive motor and the control means disposed on the fixed plate are arranged inside in the vehicle width direction, and the human power detection is performed.
- the means is arranged outside in the vehicle width direction.
- the invention according to claim 5 is the invention according to claim 3 or 4, wherein the control means is provided on the fixed plate and the control means is provided on a hub side of the drive wheel. It is characterized in that a partition wall is provided between the human power detecting means.
- the invention according to claim 6 is the invention according to claims 1 to 4 or 5, wherein the signal transmission means is arranged around an axial center of a hub of each of the drive wheels, and The control means, the drive motor and the power transmission means are arranged radially outward.
- the invention described in claim 7 is the invention according to claim 1, wherein the left and right drive wheels having the same structure are point-symmetrical about the center in the vehicle longitudinal direction. It is characterized by being attached to a relationship.
- the invention according to claim 8 is the invention according to claim 1, wherein human power is applied to each of the drive wheels via a hand rim, and the hand rim is connected to each of the drive wheels. Characterized in that it is rotatably supported on the hub.
- the invention according to claim 9 is the invention according to claim 8, wherein the hand rim is attached to a hand rim support member rotatably supported on a hub of each drive wheel, and the hand rim support member is attached to the hand rim support member. It is characterized by being arranged outside the outer wall of the hub.
- the invention according to claim 10 is the invention according to claim 9, wherein an elastic member is interposed between the hand rim support member and a hub outer wall surface of the drive wheel, and the hand rim support is provided.
- a defining space is formed between the member and the outer wall surface of the hub, and the human detecting means is housed in the defining space.
- the invention according to claim 11 is the invention according to claim 9 or 10, wherein the drive wheel is detachably attached to a vehicle body, and A force bar member is disposed on the outside, a flexible cap member is attached to a center portion of the inner diameter of the cover member, and the cap member is used as an operation button of a drive wheel attaching / detaching mechanism.
- the invention according to claim 12 is the invention according to claim 1 to claim 10 or 11, wherein a battery is disposed on a fixed plate of one of the drive wheels, and Power is supplied to the other drive wheel via a wire harness.
- the invention according to claim 13 is the invention according to claim 12, wherein a main switch for supplying power to the driving wheels from the battery by 0 NZO FF is integrated with at least one of the driving wheels. It is characterized by being incorporated in
- the invention according to claim 14 is the invention according to claim 13, wherein the switch lever for driving the main switch is integrated with at least one drive wheel together with the main switch. It is characterized by.
- the switch lever is configured such that its length and directional force S can be adjusted.
- a display unit is provided at a tip of the switch lever. Therefore, according to the first aspect of the present invention, the human power detection means, the signal transmission means, the control means, the drive motor and the power transmission means which constitute the auxiliary power system are formed by the hub of the drive wheel and the axle of the fixed plate. Since it is centrally located around the area, the compactness of the auxiliary power system enables a rational arrangement, reducing and shortening the wiring and facilitating manufacture and assembly. Down can be achieved.
- the driving wheels formed by intensively arranging the auxiliary rib power system are detachably attached to the vehicle body together with the fixing plate, the driving wheels are fixed to the fixed plate and the auxiliary power when the manual electric wheelchair is transported or stored.
- the hand-operated electric wheelchair can be easily removed from the vehicle body together with the system, and the portability and storage of the manual electric wheelchair can be enhanced.
- the axle is also configured to be detachable from the vehicle body together with the drive wheel and the fixed plate, the portability and the storage capacity of the manual electric wheelchair are further enhanced. .
- the drive motor and the control means and the human power detecting means are separately arranged on the fixed side and the rotating side, respectively. This makes it possible to ensure high space efficiency for each drive wheel.
- control means provided on the fixed side and the human power detection means provided on the rotating side are separated by the partition, so that the control means and the human power are separated. Water, lubricating oil, dust and the like can be prevented from entering the detection means, and high operation stability can be ensured.
- the signal transmission means, the control means, the drive motor, and the power transmission means force are arranged in each drive wheel in the radial direction, so that the space in each drive wheel is effectively used. Is achieved.
- the left and right drive wheels provided with the auxiliary power system have the same structure, the mass production effect S of the manual electric wheelchair can be increased.
- the left and right drive wheels are mounted in a point-symmetrical relationship around the center in the front-rear direction of the vehicle body, effective use of space is achieved in the arrangement of the auxiliary power system as a whole manual electric wheelchair.
- the power wheelchair power s is reduced in size and its handling power s is facilitated.
- the left and right auxiliary power system powers s do not interfere with each other, and the storability of the manual power wheelchair is improved.
- the hand rim is supported by the hub of the drive wheel, which is capable of high-precision machining and has high rigidity, so that the support stiffness of the hand rim is increased s and the smooth rotation is possible.
- the occupant can perform a lift-up operation using the hand rim without difficulty.
- the hand rim is attached to the hand rim support member which is supported on the hub of the drive wheel by rotation, and the hand rim support member is arranged outside the outer wall of the hub.
- the amount of offset in the axial direction (in the vehicle width direction) between the operation unit and the rotation support unit can be reduced, and the hand rim can be restrained from rattling in the lateral direction, thereby improving the operability of the hand rim. It is possible to improve the durability of the bearing of the rotation support portion of the hand rim.
- the human power detecting means is housed in a highly waterproof and dustproof defined space formed between the hand rim support member and the outer wall surface of the hub, Water and dust can be prevented from entering the detection means. High detection accuracy can be secured stably.
- the elastic member interposed between the hand rim support member and the hub outer wall surface of the drive wheel has a function of a friction damper that suppresses vibration due to the inertia of the hand rim, in addition to a sealing function. Signal generation is prevented.
- the drive wheel can be easily attached to and detached from the vehicle body with one touch by operating the flexible cap member as the operation button. By removing the drive wheel from the vehicle body during transportation or storage, the portability and storage of the manual electric wheelchair can be improved.
- the battery is installed on the fixed plate on one driving wheel side, and power is supplied from the battery to the other driving wheel via the wire harness.
- the wire harness it is only necessary to hold the wire harness and, in some cases, the main switch on the vehicle body side, and the vehicle body structure is simplified.
- the electric wiring connecting the main switch and the battery does not appear on the vehicle body frame side, and therefore, the electric wiring and the component force associated therewith are minimized. Therefore, the structure is simplified, and the removability of the drive wheels is improved.
- the display unit for providing the occupant with information such as the remaining amount of the battery and the occurrence of an abnormal situation is provided on the drive wheel together with the switch lever, so that the structure is simplified and the drive is simplified. The detachability of the ring is further improved.
- FIG. 1 is a side view of a manual electric wheelchair according to Embodiment 1 of the present invention
- FIG. Top view of the wheelchair Fig. 3 is the rear view of the wheelchair
- Fig. 4 is the front view of the wheelchair with the hub cover removed
- Fig. 5 is the line A-A in Fig. 4.
- Sectional view Fig. 6 is a rear view of the hub part of the wheelchair wheel
- Fig. 7 is a sectional view taken along line BB in Fig. 6,
- Fig. 8 is a partially broken section along line C-C in Fig. 7.
- Fig. 9, Fig. 9 is an electrical connection diagram of the auxiliary power system of the manual electric wheelchair, Fig.
- FIG. 10 is an inner side view of the right wheel of the manual electric wheelchair according to the second embodiment of the present invention
- Fig. 11 The figure is an enlarged cross-sectional view taken along the line DD of FIG. 10, and
- FIG. 12 is a detailed enlarged view of the switch lever portion of the right wheel of the manual electric wheelchair.
- the manual electric wheelchair 1 is configured by detachably attaching wheels 2 as driving wheels to the left and right sides of the body of an existing folding manual wheelchair, and the front and rear of the pipe frame-shaped frame 3.
- the part is movably supported by a pair of left and right casings 4 and wheels 2.
- the frame 3 has a pair of front and rear cross members 3a, and the two X-shaped cross members 3a are pivotally connected at their intersections by a shaft 6. .
- a pair of left and right handle arms 3b is provided upright at the rear of the frame 3, and the upper end of each handle arm 3b is bent rearward, and the bent portion has a grip for an assistant. Power s installed.
- a pair of left and right arms 3c which extend horizontally from the intermediate height of the handle arm 3b of the frame 3 to the front of the vehicle body, have their front ends bent at substantially right angles, and are vertically lowered.
- the caster 4 is rotatably supported at its lower end, but the right-hand arm (right side for the occupant seated on the seat 5) arm 3c is bent at a right angle (the upper part of the vertical part).
- the main switch is fitted with 8 power s.
- the front portions of a pair of left and right arms 3d arranged below the knitting arm 3c extend obliquely downward toward the front of the vehicle body, and have a pair of left and right ends at their extended ends (front ends). Step 9 is installed.
- each of the pair of left and right wheels 2 is rotatably mounted on an axle 11 supported by an axle mounting boss 10 welded to a frame 3 via a ball bearing 12.
- a ring-shaped hand rim 13 S for the occupant to turn by hand is provided outside each wheel 2.
- the hand rim 13 has a disk-shaped disc 14 as a hand rim support member rotatably supported via a bearing 60 on a boss portion 2a-1 formed on a hub 2a of a vehicle H2. Mounted by bolts 16 via three spokes 15. Therefore, the hand rim 13 can rotate independently with respect to the wheel 2.
- a seal ring 17 made of an elastic body is interposed between the outer wall surface of the hub 2a of the wheel 2 and the disk 14.
- the disc 14 is covered by a force bar 19 attached to the outside (outside in the vehicle width direction) of the disc 14 with a bolt 18.
- the seal ring 17 has a sealing function as well as a function as a friction damper that suppresses circumferential vibration caused by inertia of the hand rim 13 and the disk 14.
- the hand rim 13 is elastically connected to the wheel 2 at three locations on the entire circumference by the structure shown in FIG.
- a spring 21 is interposed in a space extending radially outward between the pair of stoppers 20 formed in the hub 2 a of the wheel 2, Each spring 21 has its retaining sound fixed to the hub 2a. Fall is prevented.
- each of the springs 21 is received at its both ends by a spring receiver 23.
- a neutral state where the hand rim 13 does not come in contact with the human hand as shown in FIG. Is in contact with the pair of stops 20.
- a groove 20a force s is provided in the center portion of each stop 20.
- brackets 24 are attached to the entire circumference of the disc 14 at three locations so as to be adjustable in position with bolts 25, and a pair of brackets 24 is provided at both ends of each bracket 24.
- Pins 26 protrude inward, and each pair of pins 26, when in a neutral state in which the hand rim 13 does not receive human power, as shown in FIG. It is in contact with the end face of 23.
- elongated holes 24a long in the radial direction are formed at both ends of each bracket 24, and the bolts 25 are inserted through the elongated holes 24a. Therefore, if the bolt 25 is loosened, the position of the bracket 24 can be adjusted by moving the bracket 24 in the radial direction.
- the end face of the spring receiver 23 (the end face with which the pin 26 should come into contact) is shown in the figure.
- the position of the pin 26 with respect to the spring receiver 23 can be adjusted by moving the bracket 24 in the radial direction as described above in the neutral state, as shown in FIG. As shown, the pair of pins 26 can be brought into contact with the spring receiver 23 in the neutral state.
- the disc 14 on the hand rim 13 side has a zero-point correction potentiometer 27 for detecting the magnitude and direction of the human force applied to the hand rim 13.
- the input shaft 27 of the potentiometer 27 is fixed at one end 3 ⁇ 4 ⁇ of the input shaft 27 a of the potentiometer 27 to one end of a lever 28.
- the other end of 8 is in long hole engagement with a pin 29 protruding from the hub 2a of the wheel 2 via a rubber cap 30.
- the cap 30 is for preventing the backlash of the lever 28.
- a disc-shaped fixing plate 31 is attached to the axle 11 on the inner side in the vehicle width direction of each hub 2a of the pair of left and right wheels 2.
- a cylindrical holding member 3 2 and a ring-shaped holding ring 3 3 covering the hub 2 a of the wheel 2 are attached with bolts 3. It is connected by 4 and the controller that constitutes the control means is attached.
- a drive motor 36 and a wheel-side coupler 37 are mounted on the outer surface of the fixed plate 31 on the vehicle body side.
- a plurality of vertical heat dissipation grooves 31 a are provided on the outer surface of the fixed plate 31 at least at the position where the self-controller 35 is installed. Is formed.
- a space force s is formed inside the hub 2 a of each wheel 2 surrounded by the fixed plate 31, and the space is formed in a ring shape fixed to the fixed plate 31 and the holding ring 33.
- the partition 38 is divided into chambers S1 and S2, and an opening 38a is formed in a part of the P wall 38 as shown in FIG.
- a ring-shaped inner transformer 39a is fixed to the boss portion 2a-2 of the rotating hub 2a, and an outer member is provided between the fixed holding member 32 and the holding ring 33.
- Trans 3 9b is pinched.
- the inner transformer 39a and the outer transformer 39b are arranged concentrically with each other through a slight gap, and constitute a rotary transformer 39 which is a signal transmission means between the controller 35 and the potentiometer 27. ing.
- the controller 35 is housed in the room S1.
- the auxiliary power generated by the drive motor 36 is transmitted to the wheels 2 via the power transmission means.
- the configuration of the power transmission means is based on FIGS. 7 and 8. This will be described below.
- the power transmission means includes burries 40, 41, a belt 42, and a plurality of gears G1 to G4.
- the small-diameter pulley 40 is connected to an output shaft 36a of the drive motor 36.
- the large-diameter pulley 41 is connected to one end of an intermediate shaft 43, and the endless belt 42 is wound between both pulleys 40 and 41. I have.
- the intermediate shaft 43 and the drive shaft 44 arranged in parallel with the intermediate shaft 43 are connected to the fixed plate 31 and the cover 45 via bearings 46 and 47, respectively.
- the gear G 1 is integrally formed on the intermediate shaft 43, and the gear G 1 is engaged with the gear G 2 connected to one end of the drive shaft 44. ing.
- the other end of the drive shaft 44 penetrates an opening 38a (see FIG. 7) formed in the partition 38 and faces the inside of the chamber S2, and is formed integrally with the end.
- the small-diameter gear G3 thus formed is combined with a large-diameter ring gear G4 connected to the inner periphery of the hub 2a.
- the pulleys 40, 41, belt 42, and controller 35, which constitute the power transmission means, are stored in a chamber S1 partitioned by a partition wall 38 because they dislike lubricating oil.
- G2 are housed in chamber S3 (see FIGS. 5 and 7), and gears G3, G4 requiring lubricating oil are housed in chamber S2.
- human power detecting means constituted by the spring 21 2 potentiometer 27 described above
- signal transmitting means constituted by the rotary transformer 39
- control means constituted by the controller 35
- drive motor 36 and
- the power transmission means is composed of pulleys 40, 41, belts 42, and gears G1 to G4.
- the auxiliary power system is composed of an axle of hub 2a of each wheel 2.
- the wheels (2) in which the auxiliary power system is arranged on the hub (2a) have the same structure on the left and right sides, as described above. Each wheel 2 is detachably attached to the vehicle body.
- the axle 11 that rotatably supports the wheel 2 is formed in a hollow shape, and a small-diameter rod 48 is inserted through the inside thereof.
- a locking member 49 is engaged with the inner end of the rod 48 to engage with the inner end surface of the axle 11, and a pressing member 50 is bonded to the outer end of the rod 48.
- the locking member 49 and the pressing member 50 are slidably fitted in the axle 11, and their diameters are set to be larger than those of the rod 48.
- the rod 48, the locking member 49 and the pressing member 50 are constantly urged outward (downward in FIG. 5) by the spring 51.
- reference numeral 61 denotes a circlip constituting a stopper.
- a plurality of circular holes 11a are formed in the inner end of the axle 11 (the part where the locking member 49 is fitted), and each circular hole 11a has a ball 5 2 force. s is held.
- a flexible rubber cap 53 is attached to the center of the cover 19 so that the pressing member 50 faces the rubber cap 53.
- a cylindrical sleeve 54 is inserted through the axle mounting boss 10 welded to the frame 3, and the sleeve 54 is mounted on the axle by a nut 55 screwed around the outer periphery of the sleeve. Boss is bound to 10.
- each wheel 2 is attached to the vehicle body by inserting the inner end portion of the axle 11 from the outside into the sleeve 54 from the outside.
- Force s The pushing member is pushed radially outward by the locking member 49 and protrudes from the outer peripheral surface of the axle 11, and the ball 52 is locked to the inner end surface of the sleeve 54. And the wheels are securely mounted on the vehicle body.
- the rubber cap 53 is used as an operation button of a detachment mechanism, and the rubber cap 53 is pressed with a finger to press the pressing member 50, the rod 48, and the lock.
- the member 49 is integrally moved toward the inside of the vehicle body against the urging force of the spring 51. Then, the locking member 49 retreats from the position of the ball 52.
- the ball 52 can move inward in the radial direction of the axle 11 and sink from the outer surface of the axle 11, and the wheel By pulling the entire 2 outward, the axle 11 can be removed from the sleeve 54, and the wheels 2 can be easily removed from the vehicle body with one touch.
- the axle 11 1 is pressed while pressing the rubber cap 53 as an operation button and moving the pressing member 50, the rod 48, and the locking member 49 to the inside of the vehicle body. Is inserted through the sleeve 54, and then the finger is released from the rubber cap 53. Then, the ball 54 is pushed radially outward by the locking member 49 and protrudes from the outer peripheral surface of the axle 11, so that the ball 52 is locked to the inner end surface of the sleeve 54. The axle 11 is prevented from slipping out, so that it can be easily attached to the vehicle body with one touch.
- the outer peripheral edge of the fixing plate 31 of each wheel 2 has a detent that opens in a U-shape toward the inside of the vehicle body (that is, the direction in which the wheel 2 is attached and detached).
- a locking member 57 is bonded to the frame 3, and the detent member 56 is locked at the same time when the wheel 2 is attached to the vehicle body as described above.
- the fixed side portion such as the fixed plate 31 is locked by fitting to 57.
- a battery 58 is detachably attached to a fixing plate 31 of the right wheel 2.
- a wire harness 59-s force is installed on the vehicle body (frame 3) side.
- the left and right wheels 2 have the same structure as described above, when they are mounted on the vehicle body, they are arranged in a point-symmetrical positional relationship about the center in the vehicle longitudinal direction. It will be.
- the drive motors 36 protruding inwardly of the left and right wheels 2 are arranged with a step in the vertical direction.
- folded the wheelchair 1 6 When folded, the two driving motors 36 force s do not interfere with each other, and as a result, the wheelchair 1 can be compactly and easily folded.
- the left and right wheels 2 have the same structure, parts can be shared, and the cost of parts can be reduced due to mass production effects.
- the coupler 37 attached to the fixed plate 31 of each wheel 2 is connected to the wire harness 59 installed on the vehicle body side. Power supply from the battery 58 disposed on the right wheel 2 to the drive motor 36 and the controller 35 disposed on the left wheel 2 by connecting the wire harness 59. Made through.
- the wire harness 59 installed on the vehicle body (frame 3) side is composed of a control power line 59a, an error signal line 59b, a power power line 59c and a ground wire 59d. It is configured by binding one wire, which is connected to a part 35 a of a controller 35 provided on the left and right wheels 2 via a coupler 37 provided on the left and right wheels 2. It is connected to the control unit 35b.
- reference numeral 8 denotes the main switch.
- the battery 58 is provided on the right wheel 2, and when the battery 58 is supplied with power to the controller 35 provided on the right wheel 2, at the same time, the wire harness Power is also supplied to the controller 35 provided on the left wheel 2 via 59.
- the power supplied to the power section 35a of each controller 35 is supplied to the drive motor 36 to drive the drive motor 36, and the power supplied to the control section 35b is While being supplied to the potentiometer 27 on the rotating side via the transformer 39, a signal from the potentiometer 27 is also transmitted to the controller 35 via the rotating transformer 39.
- the hand rim 13 rotates relative to the wheel 2 by an angle commensurate with the amount of compression deformation of the spring 21.
- the relative rotation of the hand rim 13 is magnified by the lever 28 and transmitted to the potentiometer 27, and the potentiometer In the evening 27, a detection signal proportional to the relative rotation amount of the hand rim 13 is transmitted to the control unit 35b of the controller 35 via the rotation transformer 39.
- the controller 35 b of the controller 35 since the amount of compression deformation of the spring 21 is proportional to the amount of human force applied to the hand rim 13, the controller 35 b of the controller 35 generates a detection signal proportional to the relative rotation amount of the hand rim 13.
- the magnitude of the human power applied to the hand rim 13 is determined based on this, a control signal corresponding to the magnitude of the human power is transmitted to the power unit 35a, and the power (current) corresponding to the detected human power (torque) Is supplied to the drive motor 36, and the drive motor 36 is rotationally driven to generate required auxiliary power.
- the rotation is decelerated by one step via the buries 40, the belts 42 and the buries 41 shown in FIGS. 7 and 8.
- the rotation of the intermediate shaft 43 is transmitted to the drive shaft 44 after being reduced in two steps by the gears Gl and G2.
- the rotation of the drive shaft 44 is reduced by three stages by the gears G3 and G4 and transmitted to the wheel 2, and the wheel 2 is rotationally driven by a driving force of a magnitude obtained by adding auxiliary power to human power.
- the wheelchair 1 is advanced, and the occupant can easily operate the wheelchair 1 with a small human power of about 1/2 of the total driving force.
- human power detecting means, signal transmitting means comprising a rotating transformer 39, control means comprising a controller 35, drive motor 36 and pulleys 40, 41, belts 42 and Power transmission means force composed of gears G1 to G4 5 Hub 2a of each wheel 2 and axle 11 of fixed plate 31 around axle 11 Reasonable arrangement force s becomes possible, and reduction and shortening of wirings and simplification of manufacture and assembly are achieved, so that the cost of the manual electric wheelchair 1 can be reduced.
- the human power detecting means including the driving motor 36 and the controller 35 (control means) and the potentiometer 27 at each wheel 2 is connected to the fixed plate (fixed side) and the hub 2.
- the power transmission means including the rotating transformer 39, the controller 35, the drive motor 36, the pulleys 40, 41, and the like are also distributed in the radial direction, so that Effective use of space is achieved.
- the left and right wheels 2 formed by intensively disposing the auxiliary power system can be attached to and detached from the vehicle body together with the fixed plate 31 and the axle 11, the manual electric wheelchair can be used.
- the wheel 2 can be easily removed from the vehicle body together with the axle 11, the fixed plate 31, and the auxiliary power system, and the portability and storage capability of the manual electric wheelchair 1 can be increased.
- battery 58 is installed on one (right) wheel 2 side, and power is supplied from battery 58 to the other (left) wheel 2 via wire harness 59.
- main switch 8 and the wire harness 59 need to be installed on the vehicle body side, and the vehicle body structure is simplified.
- a human power detecting means constituted by a potentiometer 27 or the like is connected to the hub 2 a of the wheel 2 sealed by the seal ring 17 and the disc. It is housed in a closed space surrounded by 14 and the cover 19, and is fixed in the plate 2a. The space surrounded by the plate 31 is divided into a room S1 and a room S2 by a partition wall 38.
- the control means composed of the controller 35 and the power transmission means composed of the burries 40, 41, belts 42, etc. are housed inside, so that the human power detection means, the control means, and the power transmission which constitute the auxiliary power system Water, lubricating oil, dust and the like can be prevented from entering the means, and high operational stability can be ensured for these.
- the support rim of the hand rim 13 is high.
- the smooth rotation force s can be achieved, and the lift-up operation of the occupant using the hand rim 13 can be performed without difficulty.
- the hand rim 13 is attached to the disk 14 rotatably supported on the hub 2 a of the wheel 2 and the disk 14 is arranged outside the outer wall of the hub 2 a, the The offset amount in the axial direction (vehicle width direction) with respect to the rotation support portion can be reduced, and the hand rim 13 can be restrained from having a small lateral lash to improve the operability of the hand rim 13. At the same time, the durability of the bearing 60 of the rotary support portion of the hand rim 13 can be improved.
- a human-power detecting means including a potentiometer 27 in a chamber S4 having high waterproof and dustproof properties formed between the disk 14 and the outer wall surface of the hub 2a.
- the intrusion of water, dust, and the like into the human power detection means can be suppressed, and the human power detection means can stably secure high detection accuracy.
- the seal ring 17 interposed between the disk 14 and the outer wall surface of the hub 2 a has a sealing function and a friction that suppresses vibration due to inertia of the hand rim 13 and the disk 14. Since it also functions as a damper, the generation of erroneous signals due to vibration is prevented.
- the flexible rubber cap 53 is attached to the detachable mechanism of the wheel 2.
- the wheels 2 can be easily attached to and detached from the vehicle body with a single touch, so that the wheels 2 can be removed from the vehicle body when the manual electric wheelchair 1 is transported, and The portability and storage of the electric wheelchair 1 can be improved.
- FIG. 10 is an inner side view of the right wheel of the manual electric wheelchair according to the second embodiment of the present invention
- FIG. 11 is an enlarged cross-sectional view taken along the line DD of FIG. 10
- FIG. FIG. 3 is an enlarged detail view of a switch lever portion of a right wheel of the manual electric wheelchair.
- the same elements as those used in the first embodiment are denoted by the same reference numerals. However, the description of them is omitted.
- a main switch 8 (see FIG. 11) is fixed to a fixed plate 31 and is built in a hub 2 a of a right wheel 2.
- the main switch 8 is turned ON by turning the switch lever 70 shown in FIGS. 10 to 12.
- the configuration of the switch lever 70 will be described in detail with reference to FIG.
- the switch lever 70 is rotatably provided facing the vehicle body side of the fixed plate 31 of the right wheel 2, and is a neutral arm 7 1 rotatably mounted on the axle 11. And a lever 73 attached to the tip of the neutral arm 71 with a bolt 72.
- the above-mentioned neutral arm 71 is inserted into a U-shaped lever stop flange 75 attached to the fixing plate 31 with bolts 74 so that the amount of rotation thereof is regulated.
- the gear 71 is formed partially with a force S.
- the gear 71a is a sector for driving the main switch 8 (see FIG. 11).
- the two gears 76 are engaged with each other, and the sector gear 76 is connected to the main switch 8 via a shaft 90.
- the neutral arm 71 has a pin 77 protruding from the distal end thereof.
- the pin 77 engages with a guide spring 78 attached to the fixed plate 31.
- a convex portion 78a over which the pin 77 should ride is formed.
- the lever 73 is slidably fitted to a solid round bar-shaped first lever 73a attached to the end of the neutral arm 71, and to the outer periphery of the first lever 73a.
- the lever 73 is configured so as to be adjustable in length and directional force s.
- a knob 81 is attached to the outer periphery of the end of the lever 73 (second lever 73 b), and a pilot lamp composed of an LED (light emitting diode) is mounted inside the end of the lever 73. 8 2 power s embedded. After the lead wire 83 coming out of the pilot lamp 82 comes out of the lever 73, the lead wire 83 is held by the lever 73 or the neutral arm 71 by the holders 84, 85 and distributed with some slack. And is finally electrically connected to a controller (not shown).
- the pilot lamp 82 turns on for a predetermined time and then turns off. When the remaining battery 58 becomes low, the pilot lamp 82 blinks. When wheelchair 1 stops due to running out of battery, etc., it lights up to notify the occupant of that.
- main switch 8 is turned off.
- the switch lever 70 is at the position shown by the solid line in FIG. 12, the main switch 8 is in the ON state. From this ON state, the switch lever 70 is shown by a chain line in FIG. When it is turned downward to the position shown, the main switch 8 is turned off.
- the switch lever 70 is rotated, the pin 77 moves over the convex portion 78a formed on the guide spring 78 so that the switch lever 70 has a click feeling.
- the position of the switch lever 10 is maintained at the position shown by a solid line or a chain line in FIG.
- a battery 58; ⁇ is detachably provided on the right wheel 2 side.
- a bracket (not shown) is attached to the fixing plate 31 of the right wheel 2, and a battery holder 8 7 s is attached to an upper part of the bracket.
- the battery 58 is attached to and detached from the battery holder 87.
- reference numeral 86 denotes a motor cover.
- a connection terminal (not shown) provided on the battery 58 side connects to the battery holder 87 side.
- the main switch 8 is turned on by turning the switch lever 70, the battery 58 is connected to the wire harness 88, Power is supplied to the electric units provided on each of the left and right wheels 2 via 5.9 to drive each electric unit.
- the wire harnesses 88 and 59 are electrically connected to each other by a power brassier 89, and one end of the wire harness 59 is connected to the electric unit of the right wheel 2.
- the other end of the wire harness 59 is electrically connected to the electric unit of the left wheel 2 via a coupler (not shown).
- the main switch 8 is incorporated in the hub 2a of the right wheel 2 on which the battery 58 is provided, and the switch lever 70 for operating the main switch 8 is also moved to the right wheel 2
- the wire harness 59 that electrically connects the left and right electric units is provided in the vehicle body frame 3, so that the appearance of the electric wheelchair 1 is improved and the electric wiring is improved.
- the number of parts is minimized, and the structure is simplified, and the detachability of the wheels 2 is improved.
- the length and the directional force s of the switch lever 70 can be adjusted, it is possible to flexibly respond to differences in the size and type of the body frame 3.
- the pilot lamp 82 for providing the occupant with information such as the remaining amount of the battery 58 and occurrence of an abnormality is also provided on the wheel 2 together with the main switch 8 and the switch lever 70. Simplification and further improvement of the detachability of the wheel 2 are achieved.
- auxiliary power system As described above, according to the present invention, it is possible to realize a compact and rational arrangement of the auxiliary power system, to reduce and shorten wirings, to facilitate manufacturing and assembly, and to achieve cost reduction.
- a hand-operated electric wheelchair which is excellent in portability and storability in which drive wheels can be easily attached to and detached from a vehicle body, and excellent in mass productivity.
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP96918858A EP0776647B1 (en) | 1995-06-20 | 1996-06-20 | Manual electric wheelchair |
DE69635123T DE69635123T2 (de) | 1995-06-20 | 1996-06-20 | Manuell und elektrisch betriebener rollstuhl |
US08/793,623 US5878829A (en) | 1995-06-20 | 1996-06-20 | Manual electric wheelchair |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15349995A JP3703524B2 (ja) | 1995-06-20 | 1995-06-20 | 手動式電動車椅子 |
JP7/153499 | 1995-06-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997000658A1 true WO1997000658A1 (fr) | 1997-01-09 |
Family
ID=15563903
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1996/001703 WO1997000658A1 (fr) | 1995-06-20 | 1996-06-20 | Chaise roulante manuelle et electrique |
Country Status (5)
Country | Link |
---|---|
US (1) | US5878829A (ja) |
EP (1) | EP0776647B1 (ja) |
JP (1) | JP3703524B2 (ja) |
DE (1) | DE69635123T2 (ja) |
WO (1) | WO1997000658A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US6092615A (en) * | 1997-02-28 | 2000-07-25 | Otto Bock Orthopaedische Industrie Besitz-und Verwaltungs-Kommandit-Gesel lschaft | Power assisted manually propelled vehicle and wheel assembly thereof |
CN100334777C (zh) * | 2000-10-26 | 2007-08-29 | 先端汽车天线公司 | 集成的多业务汽车天线 |
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JP3705378B2 (ja) * | 1996-07-01 | 2005-10-12 | ヤマハ発動機株式会社 | 電動車椅子 |
JPH1099379A (ja) * | 1996-09-27 | 1998-04-21 | Yamaha Motor Co Ltd | 補助動力付き車椅子 |
JPH10314232A (ja) * | 1997-05-19 | 1998-12-02 | Yamaha Motor Co Ltd | 補助動力式車椅子 |
DE19857786C2 (de) * | 1998-03-21 | 2000-05-31 | Alber Ulrich Gmbh & Co Kg | Hilfsantriebsvorrichtung für Selbstfahrer-Rollstühle |
ES2146553B1 (es) * | 1998-11-28 | 2001-03-01 | Es De Electromedicina Y Calida | Sistema para el accionamiento controlado de un dispositivo propulsado por electromotor. |
DK1216184T3 (da) | 1999-08-31 | 2013-03-25 | Deltaglide Inc | Køretøj med drivkraft-assistance |
DE19949408C1 (de) * | 1999-10-13 | 2000-10-12 | Alber Ulrich Gmbh & Co Kg | Fahrzeug, insbesondere Rollstuhl |
JP2001314453A (ja) * | 2000-02-28 | 2001-11-13 | Yamaha Motor Co Ltd | 電動車両の駆動ユニット |
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- 1996-06-20 DE DE69635123T patent/DE69635123T2/de not_active Expired - Lifetime
- 1996-06-20 WO PCT/JP1996/001703 patent/WO1997000658A1/ja active IP Right Grant
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CN100334777C (zh) * | 2000-10-26 | 2007-08-29 | 先端汽车天线公司 | 集成的多业务汽车天线 |
Also Published As
Publication number | Publication date |
---|---|
DE69635123D1 (de) | 2005-10-06 |
JPH09575A (ja) | 1997-01-07 |
US5878829A (en) | 1999-03-09 |
DE69635123T2 (de) | 2006-03-02 |
JP3703524B2 (ja) | 2005-10-05 |
EP0776647B1 (en) | 2005-08-31 |
EP0776647A4 (en) | 1999-09-22 |
EP0776647A1 (en) | 1997-06-04 |
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