WO1998055066A1 - Fauteuil roulant - Google Patents
Fauteuil roulant Download PDFInfo
- Publication number
- WO1998055066A1 WO1998055066A1 PCT/JP1998/002424 JP9802424W WO9855066A1 WO 1998055066 A1 WO1998055066 A1 WO 1998055066A1 JP 9802424 W JP9802424 W JP 9802424W WO 9855066 A1 WO9855066 A1 WO 9855066A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- link member
- wheelchair
- body frame
- vehicle body
- driving wheel
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/04—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
- A61G5/043—Mid 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
- A61G5/1078—Parts, details or accessories with shock absorbers or other suspension arrangements between wheels and frame
-
- 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
-
- 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
- A61G5/06—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle mounting facilities, e.g. for climbing stairs, kerbs or steps
Definitions
- the present invention relates to a wheelchair in which a pair of driving wheels and casters respectively arranged before and after the driving wheels are attached to a vehicle body frame to make the direction of the wheelchair rotatable at a stationary position, and in particular, enables a short turn. Therefore, the present invention relates to a wheelchair devised so that a user can easily get over a step without giving a user anxiety during traveling even if the diameter of the wheel is made as small as possible.
- This indoor electric wheelchair can rotate the direction of the wheelchair in the stationary position, On the other hand, since the whole wheelchair is small, for example, it is possible to change the direction of the wheelchair in a narrow space such as a home elevator without interfering with the elevator wall, and to make the wheel diameter as small as possible. Because it is small, it is possible to make small turns.
- the step climbing mechanism previously adopted in the indoor electric wheelchair developed by Unicom Co., Ltd., the joint applicant of the present application, uses the front caster by utilizing the rearward inertia associated with sudden start. To climb over the steps. Therefore, there are the following problems when climbing over a step.
- the present invention has been made in view of the above-described problems, and has as its object to use a wheelchair with a wheel diameter as small as possible in order to enable a small turn.
- An object of the present invention is to provide a wheelchair that can easily climb over a step without giving a feeling of anxiety to a person. Disclosure of the invention
- the first invention of the present invention is directed to a wheelchair in which a pair of driving wheels and casters respectively disposed before and after the driving wheels are attached to a vehicle body frame so that a wheelchair can be rotated at a stationary position.
- One end of the vehicle body frame is swingably connected to one end of the vehicle frame between the driving wheels, and a link member is provided at the other end to rotatably support the driving wheels.
- the link portion to the vehicle body frame is provided. It is arranged behind the connection point of the materials.
- the link member is rotated about the connection point between the body frame and the link member, and thereby the distance between the front caster and the driving wheel is increased.
- the front side of the body frame is lifted with the rear caster as a fulcrum, so that the front caster rides on the upper surface of the step, and the wheelchair can get over the step.
- the first invention of the present invention provides a first spring means for urging a pressing force on the link member between the link member and the body frame in the improved wheelchair, and the link A second bracket for biasing the member upward; a second bracket connected to the vehicle body frame so as to be displaceable in a longitudinal direction of the vehicle frame; A second bracket connected to the link member; and a tension spring provided between the brackets, wherein the tension spring has a greater elastic resilience than the first spring means, and usually has a second spring.
- the length of the driving wheel substantially coincides with the length at the time of contact with the floor surface.
- the driving wheel can be brought into strong contact with the floor surface, and at the same time, the front casing can be prevented from rising significantly from the floor surface.
- a wheelchair in which a pair of driving wheels and casters respectively disposed before and after the driving wheels are attached to a vehicle body frame so that the wheelchair can rotate at a stationary position.
- a first and a second state in which one end is swingably connected to the driving wheel at an upper portion of the vehicle body frame, and the driving wheel is rotatably supported at the other end.
- a rotating shaft of the driving wheel is provided at least in a state before the front caster hits a step.
- the second link member is disposed on the rear side of the connection point of the first link member to the vehicle body frame, and at least before the rear caster hits the step.
- the first link member is selected when the wheelchair moves over a step when the wheelchair moves forward, and the second link member is selected when the wheelchair moves over a step when moving backward.
- the first and second link members are switched so that is selected.
- the first link member has one end swingably connected in advance at an upper portion of the vehicle body frame, and One end of the link member, which is swingably connected at an upper portion of the body frame, is connected to the other end of the first link member in advance.
- a first stop that fixes the first link member to the vehicle body frame and rotatably supports the driving wheel at the other end of the second link member; and forward running of the wheelchair.
- the first and second link members are connected to each other.
- a second stopper that is fixed and rotatably supports the driving wheel at the other end of the first link member.
- the second stop comes into play when the wheelchair moves forward and the front caster hits the step, so that the first link member is selected and the step over the step during forward running is achieved.
- the first stop is activated starting from the time when the wheelchair retreats and the rear caster hits the step, the second link member is selected, and the step over the step during reverse traveling is achieved.
- FIG. 1 is a perspective view showing the appearance of an embodiment of the electric wheelchair according to the present invention
- FIG. 2 is a side view of the electric wheelchair of FIG. 1
- FIG. 3 is a main part of the electric wheelchair of FIG.
- FIG. 4 is a perspective view showing the appearance of the bogie mechanism
- FIG. 4 is a side view of the bogie mechanism forming an essential part of the electric wheelchair of FIG. 1
- FIG. 5 is a side view of the bogie mechanism forming an essential part of the electric wheelchair of FIG.
- Fig. 6 and Fig. 6 are front views of the bogie mechanism constituting the main part of the electric wheelchair of Fig. 1
- Fig. 7 is a perspective view of the spring means
- Fig. 8 is a front view of the spring means
- Fig. 7 is a perspective view of the spring means
- Fig. 8 is a front view of the spring means
- Fig. 7 is a perspective view of the spring means
- Fig. 8 is a front view of the spring means
- FIGS. 12 and 13 are side views showing the configuration of the second embodiment of the electric wheelchair according to the present invention
- FIG. 13 is a front view of the electric wheelchair of FIG. 12
- FIG. 14 is FIG. of Top view of the wheelchair with its seats removed
- Fig. 15 is the front and rear view of the electric wheelchair shown in Fig. 12 before and after climbing over a step
- Fig. 16 is the retreat of the electric wheelchair shown in Fig. 12
- Fig. 17 is a diagram showing the operation of the electric wheelchair in Fig. 12 when moving forward
- Fig. 18 is an explanatory diagram of the operation of the electric wheelchair when moving forward.
- FIG. 1 is a perspective view showing the appearance of an embodiment of the electric wheelchair according to the present invention
- FIG. 2 is a side view of the electric wheelchair of FIG. 1
- FIG. 3 is a main part of the electric wheelchair of FIG.
- FIG. 4 is a perspective view showing the appearance of the bogie mechanism
- FIG. 4 is an exploded perspective view showing a part of the bogie mechanism constituting the main part of the electric wheelchair of FIG. 1
- FIG. 5 is a main part of the electric wheelchair of FIG.
- FIG. 6 is a front view of the bogie mechanism forming the main part of the electric wheelchair of FIG.
- 1 is a driving wheel
- 2 is a front caster
- 3 is a rear caster
- 4 is a seat
- 5 is a backrest
- 6 is an armrest arm
- 7 is a footrest
- 8 is a footrest support
- 9 is an attendant.
- Handle 10 is the body frame
- 11 is the link member
- 1 is the operation part
- 13 is the operation lever
- 14 is the battery
- 15 is the motor
- 15 is the motor
- 16 is the reducer
- 1 is the pin
- 1 8 is a pipe
- 19 is an output shaft
- 20 is a connecting part
- 21 is a pipe for mounting a seat
- 22 is a tension spring
- 23 is a spring means.
- a pair of wheels 1 is attached to a body frame 10 with a link member 11 interposed therebetween, and a pair of front casters 2 and a rear Attached.
- a bogie mechanism capable of rotating the wheelchair at a stationary position with a substantially center position on a line connecting the rotation centers of the respective driving wheels 1 being a rotation center is configured.
- the vehicle body frame 10 includes a front frame 10A, a center frame 10B, and a rear frame 10C.
- Each of the front frame 1OA and the rear frame 10C has a configuration in which a pipe is curved, and a front caster 2 and a rear caster 3 are attached to a downwardly directed end of each pipe.
- the central frame 10B is formed in a box shape by welding a plate material, and the front frame 1OA and the rear frame 10C are welded to the central frame 10B to integrally connect them. ing.
- the front frame 1OA includes a support pipe 10a extending in the horizontal direction. Brackets 10b are attached to both sides of the support pipe 10a, and a link member 11 is swingably connected to the bracket 10b.
- the link member 11 is provided with a pipe 11a having a central portion arranged horizontally and both ends curved obliquely downward, and two brackets 11b connected to the horizontal portion of the pipe.
- the link member 11 can swing on the body frame 10 around the pin 17 (connection point P). They are linked.
- one end of the link member 11 is swingably connected between the vehicle body frame 10 and the driving wheel 1 at an upper portion of the vehicle body frame 10 and the driving wheel 1 is rotated at the other end. It is pivotally supported.
- the output shaft 19, which is a rotating shaft of the driving wheel 1, is disposed at a position rearward of the connection point P of the link member 11 to the vehicle body frame 10, at least before the front caster 2 hits a step. It has been.
- the housings of the speed reducers 16 are fixed to both ends of the pipe 11a, respectively, and the housings of the speed reducers 16 are connected by pipes 18.
- the driving wheels 1 are attached to the output shafts 19 of the respective reduction gears 16, and the motors 15 are connected to the input shafts (not shown). Therefore, by rotating the motor 15 in either the forward or reverse direction, each of the driving wheels 1 can be driven in the forward or reverse direction via the speed reducer 16 and the output shaft 19.
- a battery 14 is mounted on the upper part of each speed reducer 16 so that power can be supplied from each battery 14 to the motor 15 and the weight of each battery 14 is added to each driving wheel 1. I have.
- a curved pipe 10c is provided at the lower part of the front frame 1OA, and a connecting portion 20 attached substantially vertically downward to the center of the pipe 10c and the support pipe 10a is attached to the seat mounting pipe 21. Insert the connecting pin (not shown) The two allow the two to be connected together.
- the armrest arm 6 is provided with an operation unit 12, and by operating an operation lever 13 of the operation unit 12, the drive of the motor 15 can be controlled.
- a tension spring 22 is provided between the vehicle body frame 10 and the link member 11 for a long length, and the bow
- the driving wheel 1 is brought into strong contact with the floor surface.
- the frictional force between the driving wheel 1 and the floor surface is increased, so that the forward force and the backward force can be increased.
- a bracket 11c is attached to the center of the horizontal portion of the pipe 11a of the link member 11 and attached to both sides of the bracket "I1c" and to the seat mounting pipe 21.
- Two tension springs 22 are stretched between both sides of the bracket 21a.
- the driving wheel 1 when the tension spring of the tension spring 22 is strengthened, the driving wheel 1 can be brought into strong contact with the floor, but on the other hand, especially when the vehicle is empty, the front caster 2 rises greatly, and Is difficult to get on.
- another spring means 23 is provided between the body frame 10 and the link member 11, and the spring means 23 makes the driving wheel 1 strongly contact the floor surface by the tension spring 22. This allows the front casters 2 to be prevented from rising greatly from the floor surface.
- the spring means 23 includes a first bracket 24 connected to the body frame 10 and a link member 11. And a second bracket 25 connected to the side.
- the second bracket 25 on the side of the link member 11 is formed by bending both sides of the flat plate to form bent portions 25a, respectively, and extends from each bent portion 25a to the tip side (the upper side in FIGS. 8 and 9).
- a slit 25b is formed facing the same.
- the other first bracket 24 is formed in a flat plate shape and has a distal end (FIG. 8, FIG.
- the lower part of Fig. 9 is a narrow part 24a that matches the distance between the bent parts 25a of the second bracket 25, and the opposite base end is a wider part 24b that is wider than that.
- the narrow portion 24a is slidably disposed between the bent portion 25a of the second bracket 25, and the wide portion 24b is slidably engaged with the slit portion 25b of the second bracket 25.
- a pin 26 is attached between the bent portions 25a of the second bracket 25, and a hole 24c is formed in the other first bracket 24, and a tension spring 2f is stretched between the pin 26 and the hole 24c.
- the first and second brackets 24 and 25 are brought close to each other, and usually the step 24d of the narrow portion 24a and the ⁇ ⁇ wide portion 24b is formed at the end of the upper slit portion 25b. To make contact with it.
- the second bracket 25 is swingably connected to the link member 11 by a pin 28, while the other first bracket 24 is shown in FIGS.
- the pin 29 By engaging the pin 29 provided in this with the elongated hole 30 formed in the central frame 10B, the pin 29 can be displaced and swingable in the front-rear direction of the wheelchair with respect to the central frame 10B. It is connected to.
- the tension centre of the tension spring 27 of the spring means 23 is set to be larger than the tension centre of the tension spring 22, whereby the tension spring 22 moves the link member 11 around the connection point P around the link point P.
- the link member 11 is rotated clockwise against the counterclockwise rotation in FIG.
- the forward caster 2 When the front caster 2 abuts, for example, at a height of 1 Z2 of this caster diameter while the wheelchair is traveling forward, the forward caster 2 is prevented from moving forward. In this state, if the driving wheel 1 is continuously driven forward, the forward movement of the front caster 2 is hindered, so that the forward driving force of the driving wheel 1 causes the upward force based on the obliquely upward force F applied to the link member 11. Due to the component force f2, the body frame 10 is rotated counterclockwise in FIG. 10 around the rear caster 3.
- the front caster 2 receives the upward component force f2 of the driving wheel 1 while receiving the component force f1 in the forward direction of the driving wheel 1 and abutting against the step, and lifts up along the end face of the step. As a result, as shown in FIG.
- a pair of driving wheels 1 are mounted on a body frame 10 with a link member interposed therebetween, and a pair of front casters 2 and a rear casting 3 are mounted at positions before and after each of the driving wheels 1.
- the bogie mechanism is configured such that the direction of the wheelchair can be rotated at a stationary position with a substantially middle position on a line connecting the rotation centers of the respective driving wheels 1 as a rotation center. This is the same as in the first embodiment.
- the link member 1 1 using the first embodiment whereas those having the structure can only overcome step during forward travel of the wheelchair, the link member had use in this embodiment, retraction of the wheelchair
- the system is designed to allow the driver to get over a bump when driving.
- first link member “A” and the second link member “MB” is used as the link member.
- One end of the first link member 11A is swingably connected in advance by a pin 32 at a point P1 at an upper portion of the vehicle body frame 10, and the second link member 11B is connected to the body frame 10 in advance.
- the one end (the end that coincides with the point P2, which is the fulcrum when the vehicle travels over a step in reverse travel), is connected to the other end of the first link member 11A at the upper part of the first link member 11A. It is connected in advance by the pin 33.
- This connection configuration is intended to enable a wheelchair to climb over a step.
- the rotating shaft of the driving wheel 1 is disposed at a position rearward of a connection point of the first link member 11A to the vehicle body frame 10 at least before the front caster 2 hits the step, and at least, Before the rear caster 3 hits the step, the rear caster 3 is located forward of the connection point (pin 33) of the second link member 11B to the vehicle body frame 10.
- first link member 11A is selected when the wheelchair crosses the step when traveling forward, and the second link member "MB" is selected when the wheelchair reverses the step.
- the first and second link members 11A.11B are configured to be switched.
- the first link member 11 A is fixed to the vehicle body frame 10 when the wheelchair retreats over a step and the other link member 11 B of the second link member 11 B is fixed.
- a first stop that allows the driving wheel 1 to be rotatably supported at one end (the lower surface of the upper pipe portion 10 ⁇ of the body frame 10 is connected to the first link member 11 ⁇ ⁇ and the second link member 11B).
- the first and second link members 11A and 11B are fixed to each other, and the driving wheel 1 is rotatably supported at the other end of the first link member 11A.
- the second stopper 11D is used.
- the first and second link members 11A and 11B have cutouts into which the second stoppers 11D fit.
- Reference numeral 31 denotes a spring for restoring the second link member.
- a tension spring 22 is stretched between the body frame 10 and the link member (a combination of the first and second link members 11A and 11B), and this tension is applied.
- the driving wheel 1 By rotating the first link member 11A counterclockwise about the connection point P1 between the body frame 10 and the first link member 11A by the spring 22, the driving wheel 1 is brought into strong contact with the floor surface. I have to.
- the frictional force between the driving wheel 1 and the floor surface is increased, so that the forward force and the backward force can be increased.
- another spring means 23 is provided between the body frame 10 and the link member.
- the spring means 23 allows the front caster 2 to be prevented from rising significantly from the floor surface while allowing the driving wheel 1 to strongly contact the floor surface by the tension spring 22.
- the second link member 11B acts while the first link member 11A is fixed to the body frame 10 by the first stopper 11C, so that the vehicle is able to climb over the step when the wheelchair retreats.
- the second link member 11B opens 90 ° or more with respect to the first link member 11A. This is due to the contraction force of the spring 31 for restoring the second link member after climbing over the step, This can be solved by ensuring that the locking member 11B is restored to its original position as shown in FIG.
- the electric wheelchair of the second embodiment is configured as described above, when the front caster 2 hits a step during forward running as shown in FIG. You can get over the bumps as if you were riding. In addition, when the rear caster 3 hits the step during the reverse running as shown in FIG. 16 (a), the vehicle can go over the step as shown in FIG. 16 (b). Will be described.
- the front caster 2 collides with, for example, a step having a height of 12 of this caster diameter, and in this state, the driving wheel 1 is moved in the forward direction.
- the second stopper 11D fixed the first and second link members 11A and 11B to each other, and rotatably supported the driving wheel 1 at the other end of the first link member 11A. State. Therefore, a force F that pushes the first link member 11A obliquely upward along the longitudinal direction acts on the first link member 11A.
- the rear caster 3 collides with, for example, a step having a height of 1 to 2 of the diameter of the caster, and in this state, the wheel 1
- the first stop 11C fixes the first link member 11A to the vehicle body frame 10 and rotatably supports the driving wheel 1 at the other end of the second link member 11B. State. For this reason, a force is applied to the second link member 11B to push it obliquely upward along the longitudinal direction. At the same time, an upward component force based on this upwardly pushing force is applied to the body frame 10.
- the wheelchair is pivoted to lift about the front casters 2. As a result, when the rear caster 3 is lifted to the height of the step or more, the rear caster 3 lands on the upper surface of the step as shown in FIG. Is done.
- the user in order to enable a small turn, in a wheelchair having a wheel diameter as small as possible, the user can easily step on the wheelchair without giving a feeling of anxiety to the user during running. It is possible to provide a wheelchair that can get over.
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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)
- Handcart (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98923076A EP0927551A4 (en) | 1997-06-06 | 1998-06-02 | WHEELCHAIR |
US09/230,593 US6279927B1 (en) | 1997-06-06 | 1998-06-02 | Wheelchair |
JP55024898A JP3267631B2 (ja) | 1997-06-06 | 1998-06-02 | 車椅子 |
HK00101434A HK1022416A1 (en) | 1997-06-06 | 2000-03-08 | Wheelchair. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16505097 | 1997-06-06 | ||
JP9/165050 | 1997-06-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998055066A1 true WO1998055066A1 (fr) | 1998-12-10 |
Family
ID=15804890
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1998/002424 WO1998055066A1 (fr) | 1997-06-06 | 1998-06-02 | Fauteuil roulant |
Country Status (8)
Country | Link |
---|---|
US (1) | US6279927B1 (ja) |
EP (1) | EP0927551A4 (ja) |
JP (1) | JP3267631B2 (ja) |
KR (1) | KR100336273B1 (ja) |
CN (1) | CN1171575C (ja) |
CA (1) | CA2262601A1 (ja) |
HK (1) | HK1022416A1 (ja) |
WO (1) | WO1998055066A1 (ja) |
Cited By (3)
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WO2001028841A1 (fr) * | 1999-10-18 | 2001-04-26 | Takenaka Komuten Co., Ltd. | Dispositif pour voyage |
US6252554B1 (en) | 1999-06-14 | 2001-06-26 | Lk-Products Oy | Antenna structure |
WO2023238187A1 (ja) * | 2022-06-06 | 2023-12-14 | 株式会社ジェイテクト | 電動車両及び車両用電動アシスト装置 |
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DE19937257A1 (de) * | 1999-08-06 | 2001-02-15 | Himolla Polstermoebel Werk | Sitzmöbel |
DE10048532C1 (de) * | 2000-09-30 | 2001-08-09 | Rehatechnik Heymer Gmbh | Rollstuhl |
US6554086B1 (en) * | 2000-10-27 | 2003-04-29 | Invacare Corporation | Obstacle traversing wheelchair |
US6611975B1 (en) * | 2001-02-23 | 2003-09-02 | Roy D. Ricketts | Motorized bed assembly |
US7040429B2 (en) | 2001-10-10 | 2006-05-09 | Invacare Corporation | Wheelchair suspension |
US7066290B2 (en) * | 2001-10-19 | 2006-06-27 | Invacare Corp. | Wheelchair suspension having pivotal motor mount |
US7293801B2 (en) | 2003-08-18 | 2007-11-13 | Invacare Corporation | Self-stabilizing suspension for wheeled vehicles |
US11213441B2 (en) | 2002-10-25 | 2022-01-04 | Invacare Corporation | Suspension for wheeled vehicles |
US7104346B2 (en) * | 2003-03-25 | 2006-09-12 | Schaffner Walter E | Power wheelchair |
TWM244070U (en) * | 2003-08-13 | 2004-09-21 | Pihsiang Machinery Mfg Co Ltd | Suspending structure for a wheelchair |
US7490683B2 (en) * | 2003-12-15 | 2009-02-17 | Schaffner Walter E | Curb-climbing power wheelchair |
US20080169136A1 (en) * | 2004-04-08 | 2008-07-17 | Levo Ag Wohlen | Wheelchair With A Middle Wheel Drive, In Particular Raising Wheelchair |
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TWI262863B (en) * | 2005-07-19 | 2006-10-01 | Wen-Chyan Shin | The sea gull type linking of frame of vehicle |
US7273118B2 (en) * | 2005-07-25 | 2007-09-25 | Shao-Shih Huang | Electric wheelchair frame |
US8113531B2 (en) * | 2006-08-16 | 2012-02-14 | Sunrise Medical Hhg, Inc. | Personal mobility vehicle having a pivoting suspension with a torque activated release mechanism |
US7896394B2 (en) * | 2005-08-18 | 2011-03-01 | Sunrise Medical Hhg, Inc. | Midwheel drive wheelchair with independent front and rear suspension |
NL1030428C2 (nl) | 2005-11-15 | 2007-05-16 | A & M Consultancy & Invest B V | Rolstoel. |
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CN2882586Y (zh) * | 2006-03-08 | 2007-03-28 | 唐承慧 | 一种新型中驱电动轮椅车的前后臂连接机构 |
EP1943995A1 (en) | 2007-01-12 | 2008-07-16 | Invacare International Sàrl | A wheeled conveyance with suspension arms for wheels |
EP2272478B1 (en) | 2007-02-08 | 2012-05-23 | Invacare Corporation | Wheelchair suspension |
CA2911675C (en) | 2007-02-14 | 2018-09-18 | Invacare Corporation | Stability control system |
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EP3238682A3 (en) | 2009-10-09 | 2018-01-10 | Invacare Corporation | Wheelchair suspension with opposite movement of anti-tip arms |
US20110308880A1 (en) * | 2010-06-17 | 2011-12-22 | Wu's Tech Co., Ltd. | Wheelchair structure |
US8851214B2 (en) | 2010-07-15 | 2014-10-07 | Permobil Ab | Electric mid-wheel drive wheelchair |
KR101269960B1 (ko) | 2010-10-21 | 2013-05-31 | 주식회사 스페이스솔루션 | 어시스트-풋을 이용하여 장애물을 승월할 수 있는 이동 기구 |
EP2497452B1 (en) | 2011-03-07 | 2014-06-11 | Invacare International Sàrl | Motorized wheelchair |
AU2013221283B2 (en) | 2012-02-15 | 2017-05-25 | Invacare Corporation | Wheelchair suspension |
US10335330B2 (en) | 2017-03-02 | 2019-07-02 | Travelsys4u Ltd. | Motor-driven chair steered by seat rotation |
KR101952343B1 (ko) * | 2017-07-18 | 2019-02-26 | 배동권 | 장애물을 넘는 관절형 구동장치 |
AU2021228590A1 (en) | 2020-02-25 | 2022-09-22 | Invacare Corporation | Wheelchair and suspension systems |
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JPS5120342A (ja) * | 1974-08-08 | 1976-02-18 | Nobuhisa Yoshinari | |
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JPH04158864A (ja) * | 1990-10-24 | 1992-06-01 | Yunikamu:Kk | 車椅子 |
JPH0629526U (ja) * | 1992-09-30 | 1994-04-19 | 有限会社シイ・ケイ・ビイ技術研究所 | 車椅子の動力装置 |
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1998
- 1998-06-02 CN CNB98800755XA patent/CN1171575C/zh not_active Expired - Fee Related
- 1998-06-02 WO PCT/JP1998/002424 patent/WO1998055066A1/ja not_active Application Discontinuation
- 1998-06-02 EP EP98923076A patent/EP0927551A4/en not_active Withdrawn
- 1998-06-02 US US09/230,593 patent/US6279927B1/en not_active Expired - Fee Related
- 1998-06-02 KR KR1019997000661A patent/KR100336273B1/ko not_active IP Right Cessation
- 1998-06-02 JP JP55024898A patent/JP3267631B2/ja not_active Expired - Fee Related
- 1998-06-02 CA CA002262601A patent/CA2262601A1/en not_active Abandoned
-
2000
- 2000-03-08 HK HK00101434A patent/HK1022416A1/xx not_active IP Right Cessation
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JPS5120342A (ja) * | 1974-08-08 | 1976-02-18 | Nobuhisa Yoshinari | |
JPS5863575A (ja) * | 1981-10-13 | 1983-04-15 | Kouyuu Kosan Kk | 全方向走行車両 |
JPS6116122U (ja) * | 1984-07-04 | 1986-01-30 | 健三 茶畑 | 車椅子 |
JPH0450029U (ja) * | 1990-08-31 | 1992-04-27 | ||
JPH04158864A (ja) * | 1990-10-24 | 1992-06-01 | Yunikamu:Kk | 車椅子 |
JPH0629526U (ja) * | 1992-09-30 | 1994-04-19 | 有限会社シイ・ケイ・ビイ技術研究所 | 車椅子の動力装置 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6252554B1 (en) | 1999-06-14 | 2001-06-26 | Lk-Products Oy | Antenna structure |
WO2001028841A1 (fr) * | 1999-10-18 | 2001-04-26 | Takenaka Komuten Co., Ltd. | Dispositif pour voyage |
US6454286B1 (en) * | 1999-10-18 | 2002-09-24 | Takenaka Komuten Co., Ltd. | Traveling device for smooth and stable movement on uneven and inclined surfaces |
WO2023238187A1 (ja) * | 2022-06-06 | 2023-12-14 | 株式会社ジェイテクト | 電動車両及び車両用電動アシスト装置 |
Also Published As
Publication number | Publication date |
---|---|
KR20000068021A (ko) | 2000-11-25 |
CN1171575C (zh) | 2004-10-20 |
EP0927551A4 (en) | 2004-04-14 |
HK1022416A1 (en) | 2000-08-11 |
EP0927551A1 (en) | 1999-07-07 |
US6279927B1 (en) | 2001-08-28 |
CA2262601A1 (en) | 1998-12-10 |
JP3267631B2 (ja) | 2002-03-18 |
KR100336273B1 (ko) | 2002-05-13 |
CN1228017A (zh) | 1999-09-08 |
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