WO2005097033A1 - Rollstuhl mit mittenradantrieb, insbesondere aufrichtrollstuhl - Google Patents
Rollstuhl mit mittenradantrieb, insbesondere aufrichtrollstuhl Download PDFInfo
- Publication number
- WO2005097033A1 WO2005097033A1 PCT/CH2005/000182 CH2005000182W WO2005097033A1 WO 2005097033 A1 WO2005097033 A1 WO 2005097033A1 CH 2005000182 W CH2005000182 W CH 2005000182W WO 2005097033 A1 WO2005097033 A1 WO 2005097033A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wheels
- wheel
- wheelchair
- roustuhl
- center
- Prior art date
Links
- 238000004146 energy storage Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
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
- A61G5/06—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
-
- 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
- A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
- A61G5/128—Rests specially adapted therefor, e.g. for the head or the feet for feet
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
- A61G5/14—Standing-up or sitting-down aids
Definitions
- the invention relates to a wheelchair with center wheel drive, in particular an erecting wheelchair, with a chassis which has a front part and a rear part which are articulated to one another by means of a joint and can be pivoted relative to one another against the force of at least one spring, and at least one.
- wheelchair with center wheel drive has become a term for a wheelchair that can be used in a confined space, for example an elevator car, for potential buyers.
- the wheelchair user needs it Only operate the control unit so that the two center wheels, which are arranged on the chassis so that they bear practically the entire weight of the chair user, are turned in opposite directions, whereby neither the front nor the rear wheels must hinder the turning of the wheelchair They are therefore usually designed as swivel wheels (US-B-5,964,473).
- AT-B-384167 shows a wheelchair with drivable front wheels, in which two additional wheels are mounted in the rear frame area to the side of the rear wheel, with one leading and one trailing auxiliary wheel, which are mounted on a two-legged carrier are.
- this wheelchair has the disadvantage that, unlike a wheelchair with a center wheel drive, it cannot be turned in a confined space.
- EP-A-1 118531 describes a vehicle with four wheels or pairs of wheels arranged in series and a complicated lever system with which the overcoming of obstacles is facilitated. This vehicle, too, cannot be turned in a confined space.
- the disadvantage is the relatively long lever arm between the auxiliary wheels and the joint, so that the obstacle produces only a relatively small pivoting and thus relatively little energy is stored in the spring. This disadvantage is exacerbated by the fact that when pivoting the energy storage in the spring only begins when the rear wheel makes contact with the tread. It also proves to be disadvantageous the steep spring characteristics of the ROSTA type springs. With such a wheelchair, only relatively small obstacles can be overcome.
- auxiliary wheel is arranged between the front wheel and the center wheels and at a distance from the tread of these wheels.
- the lever arm between the auxiliary wheel and the joint, which connects the front part of the chassis to the rear part, is therefore relatively small, so that a relatively large pivoting occurs when an obstacle is overcome. Accordingly, a relatively large amount of energy is stored in the spring.
- the auxiliary wheel can be coupled to the center wheels in terms of drive or can be driven separately. This makes it even easier to overcome an obstacle.
- a spring with a flat spring characteristic is particularly advantageous.
- gas springs are particularly well suited, since the force for tensioning the spring remains practically constant over the entire spring travel. This enables energy to be stored over a long spring travel, as a result of which the center wheels are relieved for a long time and with practically constant force when overcoming the obstacle and can thus overcome relatively large obstacles.
- the axis of the auxiliary wheel can be arranged close to the axis of the center wheels.
- a distance of the axis of the auxiliary wheel of approximately one third of the distance of the front wheel from the axis of the center wheels has proven to be advantageous.
- the auxiliary wheel is expediently adjustable in height. This allows adjustment according to the weight of the user of the wheelchair.
- the wheelchair advantageously has two auxiliary wheels arranged at a lateral distance from one another.
- An expedient embodiment of the invention provides that the front part and the rear part of the chassis are connected to one another in an articulated manner in the region between the center wheels and the rear wheel. If it is also possible to provide only one front wheel and / or auxiliary wheel, it is nevertheless advantageous to provide two front wheels or auxiliary wheels. Two rear wheels can also be provided.
- Figure 1 a side view of an erect wheelchair
- Figure 2 the erecting wheelchair viewed from the front.
- the erection wheelchair with center wheel drive can be seen from FIGS. 1 and 2.
- the drive can e.g. serve one or more electric motors.
- the chassis 11 has a front part 13 and a rear part 15, which are articulated to one another by a joint 17.
- the rear part 15 with the rear wheel 24 can be pivoted counterclockwise against the force of the spring 19, preferably a gas spring.
- the center wheels 21, the front wheels 23 and the auxiliary wheels 25 are located on the front part 13.
- the auxiliary wheels 25 are arranged between the front wheels 23 and the center wheels 21 at a distance from the tread 27.
- the axis 29 of the respective auxiliary wheel 25 is located in the horizontal direction relatively close to the axis 31 of the center wheel 21.
- This distance is advantageously about a third of the Distance between the axis 33 of the front wheel 23 and the axis 31 of the center wheel 21.
- a further auxiliary or auxiliary wheel could also be used, as is described in US Pat. No. 5,964,473 with reference to FIGS. 1 to 8, as already mentioned in the introduction.
- the seat device 37 Fixed to the front part 13 is the seat device 37, which in the exemplary embodiment shown includes an erection mechanism. However, the seat device 37 can also be designed as an ordinary seat device of a wheelchair. The footrest 39 and the backrest support 41 can be seen in the drawing.
- the wheelchair with center wheel drive has a chassis 11 which has a front part 13 and a rear part 15 which are connected to one another by means of a joint 17. At least one front wheel 23, two center wheels 21 and at least one auxiliary wheel 25 are provided. It is essential that the auxiliary wheel 25 is located between the front wheel 23 and the center wheels 21 and is arranged at a distance from the tread 27 of these wheels. When overcoming an obstacle 43, the gas spring 17 is tensioned both by the front wheels 23 and by the auxiliary wheel 25 and relaxed again when driving on. This makes it much easier to drive over obstacles.
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/547,983 US20080169136A1 (en) | 2004-04-08 | 2005-03-30 | Wheelchair With A Middle Wheel Drive, In Particular Raising Wheelchair |
EP05714724A EP1732490B1 (de) | 2004-04-08 | 2005-03-30 | Rollstuhl mit mittenradantrieb, insbesondere aufrichtrollstuhl |
AT05714724T ATE472990T1 (de) | 2004-04-08 | 2005-03-30 | Rollstuhl mit mittenradantrieb, insbesondere aufrichtrollstuhl |
CA002559909A CA2559909A1 (en) | 2004-04-08 | 2005-03-30 | Wheelchair with a middle wheel drive, in particular raising whellchair |
DE502005009864T DE502005009864D1 (de) | 2004-04-08 | 2005-03-30 | Rollstuhl mit mittenradantrieb, insbesondere aufrichtrollstuhl |
JP2007506632A JP2007532157A (ja) | 2004-04-08 | 2005-03-30 | 中間車輪駆動車椅子、特に昇降型車椅子 |
NO20065131A NO20065131L (no) | 2004-04-08 | 2006-11-07 | Rullestol med mellomhjuldrivverk, spesielt en opprettbar rullestol |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH622/04 | 2004-04-08 | ||
CH6222004 | 2004-04-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005097033A1 true WO2005097033A1 (de) | 2005-10-20 |
Family
ID=34961853
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH2005/000182 WO2005097033A1 (de) | 2004-04-08 | 2005-03-30 | Rollstuhl mit mittenradantrieb, insbesondere aufrichtrollstuhl |
Country Status (7)
Country | Link |
---|---|
US (1) | US20080169136A1 (de) |
EP (1) | EP1732490B1 (de) |
JP (1) | JP2007532157A (de) |
AT (1) | ATE472990T1 (de) |
CA (1) | CA2559909A1 (de) |
NO (1) | NO20065131L (de) |
WO (1) | WO2005097033A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010536512A (ja) * | 2007-08-24 | 2010-12-02 | レボ・アーゲー,ヴォーレン | 中央車輪駆動式車両、特に車椅子又は起立式車椅子 |
CN110236810A (zh) * | 2019-06-17 | 2019-09-17 | 南京林业大学 | 一种便于越障的电动轮椅 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8851214B2 (en) | 2010-07-15 | 2014-10-07 | Permobil Ab | Electric mid-wheel drive wheelchair |
US10772774B2 (en) | 2016-08-10 | 2020-09-15 | Max Mobility, Llc | Self-balancing wheelchair |
EP3812256B1 (de) * | 2018-06-20 | 2022-08-17 | Honda Motor Co., Ltd. | Mobiler körper |
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EP1118531A1 (de) | 2000-01-21 | 2001-07-25 | Ecole Polytechnique Federale De Lausanne | Fahrzeug für unebenes Gelände |
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-
2005
- 2005-03-30 AT AT05714724T patent/ATE472990T1/de active
- 2005-03-30 CA CA002559909A patent/CA2559909A1/en not_active Abandoned
- 2005-03-30 JP JP2007506632A patent/JP2007532157A/ja active Pending
- 2005-03-30 WO PCT/CH2005/000182 patent/WO2005097033A1/de active Application Filing
- 2005-03-30 EP EP05714724A patent/EP1732490B1/de active Active
- 2005-03-30 US US11/547,983 patent/US20080169136A1/en not_active Abandoned
-
2006
- 2006-11-07 NO NO20065131A patent/NO20065131L/no not_active Application Discontinuation
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT384167B (de) | 1985-12-19 | 1987-10-12 | Bayer Ulrich | Rollstuhl |
GB2237250A (en) * | 1989-10-06 | 1991-05-01 | Booster Electric Vehicles Limi | A kerb climbing device which minimises vertical acceleration |
US5964473A (en) | 1994-11-18 | 1999-10-12 | Degonda-Rehab S.A. | Wheelchair for transporting or assisting the displacement of at least one user, particularly for handicapped person |
US5944131A (en) | 1996-07-03 | 1999-08-31 | Pride Health Care, Inc. | Mid-wheel drive power wheelchair |
US5904214A (en) | 1997-07-11 | 1999-05-18 | Lin; David Jung-Ching | Power assist anti-tip wheel system for invalid carriage |
EP0988848A2 (de) * | 1998-09-26 | 2000-03-29 | Sopur Medizintechnik GmbH | Elektro-Rollstuhl |
EP1118531A1 (de) | 2000-01-21 | 2001-07-25 | Ecole Polytechnique Federale De Lausanne | Fahrzeug für unebenes Gelände |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010536512A (ja) * | 2007-08-24 | 2010-12-02 | レボ・アーゲー,ヴォーレン | 中央車輪駆動式車両、特に車椅子又は起立式車椅子 |
CN110236810A (zh) * | 2019-06-17 | 2019-09-17 | 南京林业大学 | 一种便于越障的电动轮椅 |
CN110236810B (zh) * | 2019-06-17 | 2020-09-04 | 南京林业大学 | 一种便于越障的电动轮椅 |
Also Published As
Publication number | Publication date |
---|---|
ATE472990T1 (de) | 2010-07-15 |
US20080169136A1 (en) | 2008-07-17 |
CA2559909A1 (en) | 2005-10-20 |
NO20065131L (no) | 2006-11-07 |
EP1732490B1 (de) | 2010-07-07 |
EP1732490A1 (de) | 2006-12-20 |
JP2007532157A (ja) | 2007-11-15 |
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