EP3684316A1 - Drive device for a wheelchair - Google Patents
Drive device for a wheelchairInfo
- Publication number
- EP3684316A1 EP3684316A1 EP18782653.2A EP18782653A EP3684316A1 EP 3684316 A1 EP3684316 A1 EP 3684316A1 EP 18782653 A EP18782653 A EP 18782653A EP 3684316 A1 EP3684316 A1 EP 3684316A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wheelchair
- drive device
- frame
- drive
- fixing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000000903 blocking effect Effects 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 5
- 230000000670 limiting effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification 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
- A61G5/04—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
- A61G5/047—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven by a modular detachable drive system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/04—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/04—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
- A61G5/042—Front 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
- A61G5/104—Devices for lifting or tilting the whole wheelchair
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
- A61G5/1051—Arrangements for steering
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
- A61G5/1054—Large wheels, e.g. higher than the seat portion
Definitions
- the present invention falls within the scope of the drive means for personal transport, which are designed especially for the sick or disabled, in particular wheelchairs and the like.
- the invention relates to a drive device for a wheelchair, comprising a control, a chassis and a support frame, wherein a fixing device is mounted on the support frame, which is fixable to a wheelchair frame of the wheelchair.
- a drive device for a wheelchair in which drive device on the one hand attacks a hook on a footrest of the wheelchair and on the other two support arms are connected to frame tubes of the wheelchair such that the drive device by means of gravity attached to the wheelchair.
- the document WO 2015/040507 A2 discloses a drive device for a wheelchair, which has a handlebar and associated fork blades, between which a drive wheel is arranged with a motor which can be fed from a power supply, wherein the drive device has on a clamping strut a clamping device which is clampingly connectable to a frame tube of the wheelchair.
- the present clamping device has two clamping segments, which engage in a closed position via a latching lug on the one clamping segment and a hook on the other clamping segment, said clamping device is fixable via a hand-operated lever in this closed position.
- a drive device for a wheelchair comprises a control, a chassis and a support frame.
- a fixing device is mounted, which is fixable to a wheelchair frame of the wheelchair.
- the fixing device is automatically connected via a fixing drive with the wheelchair frame of the wheelchair and releasably formed.
- the Drive device may be a pulling device, which is biased to pull the wheelchair by means of the fixing device. Or it can also be a bumper that is mounted on the back of the wheelchair.
- the term “chassis” refers to the parts of the drive device which serve for a movable connection to a ground or a road surface.
- the running gear may have a fork or a wheel suspension and a drive wheel arranged thereon, a track construction or a similar device.
- the term "automatically” refers in particular to a connection or release without manual manipulation being necessary, ie the fixing process itself can take place without manual intervention
- the drive device can be automatically connected to the wheelchair by being correctly positioned on the wheelchair, a switch manually actuated, and thereby the fixing drive is started and the fixing device fixes the wheelchair frame without manual intervention.
- the fixing device can be designed in different ways, for example as a hooking construction or as a clamping device. As a clamping device, it can be connected by clamping to a pipe or a similar part of the wheelchair frame.
- the fixing drive connects the fixing device and thus the drive device to the wheelchair, without the need for prevention or even manual actuation of a closing device by a user of the wheelchair.
- the fixing device with fixing drive according to the invention the autonomy and the freedom of movement of the user increases significantly, since the assistance of another person is unnecessary.
- the fixing device according to the invention can be advantageous, since it allows a comfortable and safe mounting and dismounting on the wheelchair.
- Another advantage of the invention is the fact that by means of the present automatic fixing a wider margin for different thicknesses of frame tubes is given and no proprietary adjustments between the drive device and the wheelchair must be made.
- the fixing device acts directly on the wheelchair frame.
- the chassis can be operated in different ways.
- it can be operated by hand pedals, which are connected, for example via a chain with the chassis or a drive wheel thereof.
- the drive device alternatively or additionally comprises a motor and a power supply, wherein the motor is fed from the power supply and connected to the chassis.
- a motor allows a comfortable automatic driving of the wheelchair.
- the drive device can be designed analogously to an eBike.
- Such eBike type drive devices may allow for combined automatic and (partial) manual operation.
- the fixing drive on a fixing motor may in particular be a closing motor or a clamping motor. It can be designed as a linear motor.
- a fixing motor allows efficient, convenient and safe operation of the fixing drive.
- the fixing motor is preferably designed to be fed from the power supply.
- the power supply such as a battery of the motor or drive motor during assembly or disassembly also be used just for the fixing motor. Because just batteries are typically relatively heavy components of drive devices, so can be dispensed with further batteries or power supplies for driving the Fixiermotormotors and thus the weight of the drive device are kept relatively low.
- the drive device comprises a switching element which is connected to the fixing drive.
- the switching element can be designed as a button, as a button, as a switch or similar. It may also be an example, piezoelectric component that can be activated without a touch must take place. With the switching element, the fixing drive can be actuated or switched on and / or off. For this purpose, the switching element is advantageously arranged for the user of the wheelchair within reach, for example on the handlebar and thus easily accessible.
- the fixing means comprises a first and a second jaw, which are connected to one another with the fixing drive and on one side via a hinge.
- the fixing drive is preferably arranged to move the first and the second clamping jaws to each other about the hinge.
- the fixing device may be formed in an advantageous manner as a clamping device. This allows a secure efficient fixing of the drive device to the wheelchair frame.
- different tube thicknesses or tube shapes can be fixed via the same clamping jaws, so that the drive device can be automatically fixed to different wheelchairs.
- the drive device has a contact element which is connected to the fixing drive and arranged so that it can be activated by the wheelchair frame, if this is positioned as intended.
- the term "positioned as intended” may refer to the wheelchair frame in that it is arranged in a suitable position for connection to the drive device
- the contact element can be designed as a button, as a button, as a switch or the like, or it can also be an example of a piezoelectric component which can be activated without having to be touched
- Preferably arranged between the jaws switching pin, which can be brought into operative connection with the wheelchair frame when attaching the drive device to the wheelchair in this way is a particularly simple installation between the wheelchair and the Drive device possible.
- the switching element can then be actuated for releasing the drive device and the fixing device opens and releases the wheelchair again.
- the fixing device comprises a control unit or a controller which is connected to the fixing drive, wherein the controller stops the fixing drive when a clamping pressure between the jaws and the wheelchair frame reaches a predefined value and / or the closing of the jaws on a predefined Period does not go on.
- each of the two jaws may have substantially two straight jaw segments, and between these straight jaws, it may be possible to apply sufficient clamping force to secure a frame tube securely kensegmenten a connecting, angled jaw segment on purpose of the unique positioning of the wheelchair frame between the jaws.
- angled may in this context refer to a kinked, curved, curved or similar shape
- this embodiment of the clamping jaws means that the frame tube is always positioned in the vicinity of the bent jaw segment during the closing process and always aligned in the same way with the clamping jaws.
- the fixing device is designed so that the wheelchair frame is automatically raised when connecting the drive device.
- this lifting may refer to an area of the wheelchair on which its front wheels are mounted. Such lifting can be done, for example, to a level of between about 2 cm to about 8 cm. This allows the Front wheels of the wheelchair are lifted off the ground.
- the overall construction then stands on the rear wheels of the wheelchair and the chassis of the drive device.
- the wheelchair can thus have the necessary front-wheel freedom and efficient driving with the wheelchair is made possible.
- the support frame may have a pipe construction and a base.
- the base may be connected to the chassis, for example via a tiltable or rotatable connection.
- the holding frame has a stand section which can be lowered onto a substrate when the drive device is not connected to the wheelchair frame of the wheelchair.
- the support frame is advantageously designed height adjustable.
- the drive device can be adapted to the user.
- the chassis is preferably hinged to the support frame, so that a distance between the chassis and support frame is changeable. By changing this distance can - at wheelchair mounted drive device - at the same time a distance between the chassis or drive wheel and wheelchair or its rear wheels are changed. In this way, the wheelchair can be raised efficiently.
- the change of the distance can be achieved, for example, by the chassis is moved a bit towards the wheelchair. For example, a drive wheel may roll a bit backwards while the rear wheels of the wheelchair are blocked.
- the holding frame is preferably equipped with a blocking structure with which the chassis can be blocked in several blocking positions to the holding frame, wherein the distance between the chassis and holding frame is different in the multiple blocking positions.
- the fixing device comprises a tension member and a biasing means, which are adapted to pull the chassis in the direction of the wheelchair after the fixing device has connected the wheelchair frame.
- the fixing device is adapted to be connectable to a front portion of the wheelchair frame. Under the front area of the wheelchair frame, the area is understood, which faces a front of the wheelchair or forms such a front.
- the front portion of the wheelchair frame is adapted to receive or support the feet and lower legs of a user.
- the front area of the wheelchair frame may comprise one or more quasi-vertical or slightly inclined front frame tubes.
- the front frame tubes may more or less run along the user's lower legs.
- the fixing device is adapted to be connectable to a frame tube of the wheelchair frame.
- the frame tube may in particular be one of the two mentioned front frame tubes.
- the frame tube of the wheelchair frame of the wheelchair is preferably a quasi-upright front frame tube of the wheelchair frame of the wheelchair.
- the term "quasi-upright" can be understood to mean an exactly or more or less or substantially vertical alignment of the front frame tube, in this way the drive device can be efficiently mounted from the front on the wheelchair and thus used as a pulling device.
- the drive device is preferably configured to be positioned in front of the wheelchair when the fixing device is fixed to the wheelchair frame of the wheelchair.
- the drive device may be formed as a pulling device, which allows an efficient and safe driving of the wheelchair.
- the front frame tube in the jaws can, for example, by a predefined positioning of the front frame tube in the jaws, include a front frame tube tube axis in the mounted state of the drive device against a drivable ground a first angle, which is smaller compared to a second angle in the unmounted state of the drive device ,
- a first angle which is smaller compared to a second angle in the unmounted state of the drive device
- the drive device may also be equipped with a separate device.
- the front frame tube or the front wheels can be raised via a manual lifting device.
- a manual lifting device may comprise, for example, a pull rod arranged on the drive device or a pull cable which, after connecting the drive device, is pulled onto the wheelchair and fastened or suspended on the wheelchair.
- FIG. 1 shows an inventive drive device for a wheelchair.
- Fig. 2a, b a clamping device as an embodiment of a fixing device of
- Fig. 1 shows an inventive drive device 1, as it is mounted on a conventional wheelchair 2 by means of a clamping device 19 as a fixing device to front frame tubes 71 of a wheelchair frame 7 of the wheelchair 2 without fixed to the wheelchair frame 71 fixed components.
- the front frame tubes 71 are connected to each other via a footrest 6.
- two small front wheels 5 are arranged on the footrest 6.
- a seat 3 is mounted.
- the wheelchair 2 comprises two large rear wheels 4, which are rotatably mounted to the wheelchair frame 7.
- the drive device 1 comprises a handlebar 23 and a chassis connected thereto, which comprises fork legs 9 connected to the handlebar 23 of a fork and a drive wheel 13 mounted between the fork shafts 9.
- a drive motor 12 is arranged, which is fed from a battery 8 as a power supply.
- the holding frame 15 comprises a quasi U shaped base 24 whose lower ends form a stator section 241. In disassembled state, the two ends of the base 24 of the support frame 15 are on a substrate 22. As a result, the holding frame 15 can serve as a stand of the drive device 1 when it is detached from the wheelchair 2.
- the holding frame 15 further comprises a fixedly connected to a transverse strut of the base 24 block 25 to which a control joint 26 is articulated. In this case, the control joint 26 is above rotatably or tiltably connected to the block 25 and below via a linkage 27 of a blocking structure. The linkage 27 can be latched in different longitudinal positions on the block 25.
- the clamping device 19 is shown in more detail. In particular, it has two each connected to a clamping drive 21 as a fixing drive pairs jaws 19a, 19b, wherein in Figs. 2a and 2b for clarity only a pair of jaws 19a, 19b of the clamping device 19 are shown as an example and that in an open Condition and on the other hand in a closed state.
- the clamping drives 21 each include a clamping motor 21 1, both of which are also fed from the power supply 8 and actuated or activated via a arranged on the handlebar 23 button as a switching element.
- a single clamping motor 21 1 could be provided which moves both pairs of clamping jaws 19 a, b.
- the jaws 19a, b are connected together at one end via a clamping joint 20.
- the clamping motor 21 1 is arranged on a strut 16 of the holding frame 15. Similar to an angle iron, the jaws 19a, b have three jaw segments 24a, b, c. In particular, these are two straight jaw segments 24a, c, which are connected to one another via a bent jaw segment 24b.
- a user of the wheelchair 2 travels to the drive device 1 until the two front Frame tubes 71 each lie between the two Klennnnbacken 19a, 19b of a pair.
- the clamping motors 21 move the Klennnnbacken 19 a, 19 b of the clamping device 19 toward each other, so that they securely fix the two front frame tubes 71.
- the drive device 1 is supplied with open jaws 19a, b the frame tube 7, see Fig. 2a, the button can be actuated, which activates the clamping drive 21 and the clamping motor 21 1.
- the clamping motor 21 1 drives a spindle 18 mounted on the clamping jaws 19 a, b, so that the clamping jaws 19 a, b are moved towards one another.
- the clamping drive 21 is equipped with a regulator which is designed to stop the movement of the clamping jaws 19a, b when no movement takes place for a predefined time. In this state, the jaws 19a, b are then held and the front frame tube 71 is firmly clamped and fixed, see Fig. 2b.
- the present disclosure also includes embodiments having any combination of features that are mentioned or shown above or below various embodiments. It also comprises individual features in the figures, even if they are shown there in connection with other features and / or are not mentioned above or below. Also, the alternatives of embodiments and individual alternatives described in the figures and the description may be excluded from the subject matter of the invention or from the disclosed subject matter.
- the disclosure includes embodiments that are exclusive includes the features described in the claims and in the embodiments, as well as those that include additional other features.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Handcart (AREA)
- Automatic Cycles, And Cycles In General (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH01164/17A CH714185A1 (en) | 2017-09-21 | 2017-09-21 | Drive device for a wheelchair. |
PCT/EP2018/075405 WO2019057799A1 (en) | 2017-09-21 | 2018-09-20 | Drive device for a wheelchair |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3684316A1 true EP3684316A1 (en) | 2020-07-29 |
Family
ID=61569001
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18782653.2A Pending EP3684316A1 (en) | 2017-09-21 | 2018-09-20 | Drive device for a wheelchair |
Country Status (6)
Country | Link |
---|---|
US (1) | US11786420B2 (en) |
EP (1) | EP3684316A1 (en) |
AU (1) | AU2018335832B2 (en) |
CA (1) | CA3075448A1 (en) |
CH (1) | CH714185A1 (en) |
WO (1) | WO2019057799A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH717591A1 (en) | 2020-06-30 | 2021-12-30 | Kueschall Rainer | clamping device. |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19935506B4 (en) | 1999-07-28 | 2009-07-09 | Georg Binnen | Electric motor driven traction device for wheelchairs |
JP2001327544A (en) * | 2000-03-15 | 2001-11-27 | Fuji Heavy Ind Ltd | Auxiliary power unit for wheelchair |
US6766871B2 (en) * | 2002-06-27 | 2004-07-27 | George S. Sawyer | Attachment means for attaching a wheelchair to a motorized apparatus |
US7216728B2 (en) * | 2004-07-02 | 2007-05-15 | Chao-Kuo Huang | Motorized apparatus for towing a wheelchair |
US8960340B2 (en) * | 2009-05-27 | 2015-02-24 | Patrick Tallino | Power add-on device for manual wheelchair |
US8388010B2 (en) * | 2010-02-26 | 2013-03-05 | Franklin Brent Butts | Manual wheelchair power assist |
ITAN20130103A1 (en) * | 2013-06-04 | 2014-12-05 | Giovanni Conte | REMOVABLE DEVICE FOR MOTORIZATION OF DISABLED WHEELCHAIRS. |
ES2425316B1 (en) * | 2013-07-08 | 2014-08-05 | Batec Mobility, S.L. | Auxiliary wheelchair mobility system |
WO2015040507A2 (en) | 2013-09-23 | 2015-03-26 | 洪正清 | Clamp-type wheelchair driving device |
GB2539737B (en) * | 2015-11-11 | 2017-07-12 | Daniel Kevin | Attachment for a wheelchair |
JP6805471B2 (en) * | 2016-02-10 | 2020-12-23 | 豊田鉄工株式会社 | Small electric vehicle |
-
2017
- 2017-09-21 CH CH01164/17A patent/CH714185A1/en unknown
-
2018
- 2018-09-20 EP EP18782653.2A patent/EP3684316A1/en active Pending
- 2018-09-20 WO PCT/EP2018/075405 patent/WO2019057799A1/en unknown
- 2018-09-20 US US16/648,914 patent/US11786420B2/en active Active
- 2018-09-20 CA CA3075448A patent/CA3075448A1/en active Pending
- 2018-09-20 AU AU2018335832A patent/AU2018335832B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US11786420B2 (en) | 2023-10-17 |
AU2018335832B2 (en) | 2024-04-11 |
CH714185A1 (en) | 2019-03-29 |
US20200281784A1 (en) | 2020-09-10 |
CA3075448A1 (en) | 2019-03-28 |
AU2018335832A1 (en) | 2020-04-09 |
WO2019057799A1 (en) | 2019-03-28 |
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