EP2727568A1 - Fauteuil roulant, jeu de modification pour un fauteuil roulant et procédé de fonctionnement d'un fauteuil roulant - Google Patents

Fauteuil roulant, jeu de modification pour un fauteuil roulant et procédé de fonctionnement d'un fauteuil roulant Download PDF

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Publication number
EP2727568A1
EP2727568A1 EP20130005159 EP13005159A EP2727568A1 EP 2727568 A1 EP2727568 A1 EP 2727568A1 EP 20130005159 EP20130005159 EP 20130005159 EP 13005159 A EP13005159 A EP 13005159A EP 2727568 A1 EP2727568 A1 EP 2727568A1
Authority
EP
European Patent Office
Prior art keywords
seat
wheelchair
wheels
frame
seat part
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.)
Granted
Application number
EP20130005159
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German (de)
English (en)
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EP2727568B1 (fr
Inventor
Thyl Junker
Roman Pagano
Daniel Levedag
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Individual
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Individual
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Filing date
Publication date
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Priority to EP15161158.9A priority Critical patent/EP2905004B1/fr
Priority to EP15161154.8A priority patent/EP2905003B1/fr
Publication of EP2727568A1 publication Critical patent/EP2727568A1/fr
Application granted granted Critical
Publication of EP2727568B1 publication Critical patent/EP2727568B1/fr
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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/02—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person
    • A61G5/021—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person having particular propulsion mechanisms
    • A61G5/023—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person having particular propulsion mechanisms acting directly on hubs or axis
    • 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
    • A61G5/02—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person
    • A61G5/024—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person having particular operating means
    • A61G5/025—Levers
    • 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
    • A61G5/02—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person
    • A61G5/027—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person by using auxiliary detachable mechanisms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1054—Large wheels, e.g. higher than the seat portion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1056—Arrangements for adjusting the seat
    • A61G5/1072—Arrangements for adjusting the seat rotating the whole seat around a vertical axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/04—Force
    • F04C2270/042—Force radial
    • F04C2270/0421—Controlled or regulated

Definitions

  • the invention relates to a wheelchair with a frame, comprising a seat comprising a seat part for sitting on a person and a backrest part, with wheels for rolling the wheelchair and with a drive means for driving at least one of the wheels, wherein the seat and the wheels on the frame are attached.
  • the invention further relates to a retrofit kit for a wheelchair with a frame, with a seat for sitting on a person, with wheels for rolling the wheelchair.
  • the invention also relates to a method for operating a wheelchair with a seat comprising a seat part for sitting on a person and with wheels for rolling the wheelchair, in which at least one of the wheels is driven by means of at least one muscle-operated lever arm element of a drive device of the wheelchair
  • Generic wheelchairs are well known in the art to provide temporarily or permanently sitting at least some mobility to impaired patients or persons.
  • hand-driven wheelchairs which are moved with muscle power of each user
  • motor-driven wheelchairs which, however, by weight, build heavier and can not be used as flexible.
  • Hand-driven wheelchairs are characterized by the fact that a user can manually drive the drive wheels of the wheelchair either directly on the drive wheels rigidly arranged grip tires or indirectly via an alternative drive means with, for example, forward and backward pivotable lever arms. While this quite good travel options can be achieved, the seating comfort leaves despite many adjustment options often to be desired. Especially with regard to permanently seated persons, this can lead to chronic complaints and postural damage.
  • the invention has for its object to further develop generic wheelchairs such that in particular the disadvantages mentioned above can be overcome.
  • a wheelchair with a frame, with a seat comprising a seat part for sitting on a person and a backrest part, with wheels for rolling the wheelchair and with a drive device for driving at least one of the wheels, wherein the seat and the Wheels are attached to the frame, and in which according to the invention the drive means with the seat part and / or with the backrest part is mechanically coupled such that the seat part and / or the backrest part by means of the drive means is displaceable relative to the frame to at least the buttocks of to move on the seat person, in particular during the rolling of the wheelchair.
  • the seat part and preferably also the backrest part of the seat is mounted on the frame, that ideally both by means of the drive means are displaceable relative to the frame to at least the buttocks and preferably the back of the person sitting on the seat, in particular during the rolling of Wheelchair move.
  • the present wheelchair is characterized by a dynamic seat construction, whereby it is possible, the buttocks of a user of the Wheelchair, especially paralyzed body parts of the user to actively move, making a longer sitting is much more pleasant to endure. As a result, the seating comfort can be significantly improved.
  • the movements of the seat in the sense of the present invention are coupled to the driving movement of the wheelchair at least in a main direction of travel of the wheelchair.
  • the seat part embodies that part of the seat on which the user ultimately sits.
  • the seat part is characterized by a seat for the respective user.
  • the seat part and / or the backrest part are operatively connected with components of the drive device, bypassing the generation of driving forces acting on the wheels of the wheelchair.
  • the mechanical coupling between the components of the drive device and the seat part and / or the backrest part is advantageously such that driving forces can only be transmitted from the drive device to the seat part and / or the backrest part, but conversely not at all or due to the design only negligible in a negligible Measure of the seat part and / or the backrest part on components of the drive device or on the wheels of the wheelchair.
  • the seat part and / or the backrest part neither constitute an exclusive nor an additional drive means for driving the wheels of the wheelchair.
  • the seat part and / or the backrest part are not components of the drive device for driving the wheels of the wheelchair.
  • the seat part is mounted on the frame in such a way and is operatively connected to the drive device or components thereof in such a way that the seat part can pass through an oscillating movement sequence.
  • the seating comfort can be improved particularly well.
  • the object of the invention is also achieved by a method for operating a wheelchair with a seat comprising a seat part for sitting on a person and with wheels for rolling the wheelchair, in which at least one of the wheels is driven by means of at least one muscle-operated lever arm element of a drive device of the wheelchair , wherein the method is characterized in that the Seat part is moved by means of at least one muscle-operated lever arm element oscillating about a seat part center position.
  • the seat part is mounted on the frame by means of a seat suspension device such that it can be deflected laterally about a seat part center position by means of the drive device, paralyzed body parts of a user of the wheelchair can be very well stimulated, whereby the seating comfort is substantially improved.
  • consequential damage due to sitting in a wheelchair can advantageously be at least reduced as a result.
  • a generic wheelchair which is characterized in that the drive device is mechanically coupled to the seat part and / or with the backrest part such that the seat part and / or the backrest part by means of Drive device is displaceable relative to the frame in order to move at least the buttocks of the person sitting on the seat can, wherein the seat part is mounted by means of a seat suspension device on the frame so that it is laterally deflectable by means of the drive means about a Wegteilmittenlage.
  • the seat suspension device may be such that the seat part can be moved translationally transversely displaceable to the seating direction.
  • the object of the invention is also achieved by a generic wheelchair, in which the drive device with the seat part and / or with the backrest part is mechanically coupled such that the seat part and / or the backrest part by means of the drive means relative to the Frame is displaced to move at least the buttocks of the person sitting on the seat, wherein the seat part is mounted by means of a seat suspension device on the frame such that it is rotatable by means of the drive means about a horizontal axis, which is arranged in alignment with the seat direction.
  • the object of the invention is also achieved by a generic wheelchair, in which the drive means is mechanically coupled to the seat part and / or with the backrest part such that the seat part and / or the backrest part by means of the drive means is displaceable relative to the frame , around at least to be able to move the buttocks of the person sitting on the seat, wherein the seat part is mounted by means of a seat suspension device on the frame such that it is rotatable about a vertical axis by means of the drive means.
  • the seat part is mounted by means of a seat suspension device on the frame such that it is rotatable about a vertical axis and / or about a horizontal axis by means of the drive means.
  • a retrofit kit for a wheelchair with a frame, with a seat and wheels for rolling the wheelchair comprises a seat suspension device, by means of which the seat part and / or a backrest part of a seat of the retrofit kit displaceable relative to the frame so can be arranged on the frame, that the seat part and / or the backrest part by means of a drive device relative to the frame is driven swinging.
  • the seat part for example, rotationally swing about the vertical axis and / or about the horizontal axis. Cumulatively or alternatively, the seat part can also translate around a seat part center position.
  • the seat part swings rotationally about the vertical axis, it can be rotated in a horizontal plane. If it oscillates rotationally about the horizontal axis, it can be tilted with respect to this horizontal plane. Thus, an advantageous tilt-and-turn mechanism can be realized with respect to the seat suspension device.
  • the seat part can be extremely varied shifted relative to the frame, whereby a not yet reached level of seating comfort can be achieved.
  • retrofit kit in the context of the invention describes a component unit which can be adapted to conventional wheelchairs, so that these existing wheelchairs can be retrofitted at low cost. Thus, after successful retrofitting then existing wheelchairs in the context of the present invention can be used.
  • the seat comfort can thus be further improved, although the backrest part by means of the drive means relative to the frame is relatively displaced.
  • the backrest part can be deflected laterally transversely to the seat direction by means of the drive device about a backrest part center position, the effects described above can be further improved.
  • the backrest part can be displaceably mounted on an, for example, curved cross-member element.
  • the drive device is mechanically coupled to the backrest part in such a way that the backrest part can be displaced relative to the frame by means of the drive device in order in particular to be able to additionally move the lower back part of the person sitting on the seat.
  • the backrest part can be driven mechanically varied.
  • it is operatively connected directly to a component of the drive device via a drive element.
  • the seat comprises a backrest part, which is operatively connected to the seat part in this way, the movements of the seat part and of the backrest part can be adapted to one another structurally in a particularly simple manner.
  • the present drive device comprises at least one muscle-operated lever arm element, preferably two muscle-operated lever arm elements, by means of which or which at least one of the wheels and the seat part and / or the backrest part are manually handleable.
  • the upper body can already be trained well. Is rhythmically to these alternating arm movements by means of the lever elements at least moves the seat part, in addition to the completed movements in the shoulder area at the same time in particular also the lower back muscles and almost the entire spinal column system can be stimulated and thereby trained.
  • the displacements or the movements of the seat part are such that natural walking or running movements are simulated here, especially on the paralyzed parts of the body, simultaneously with the upper body parts.
  • An advantageous variant of the method thus provides that the backrest part of the seat is moved in an oscillating manner about a backrest part center position by means of the at least one muscle-operated lever arm element.
  • the backrest part is displaced transversely to the seat direction translationally along a curved path.
  • the drive means for simultaneously driving relevant components of the seat and at least one of the wheels may comprise variously structured and operating gear.
  • this transmission may comprise a circumferential eccentric shaft, by means of which in particular the seat part can be driven to oscillate.
  • the drive device comprises a transmission unit with two rotatably driven input shaft elements and with a rotatably driven output shaft element for driving at least the seat part and with a continuously circumferentially driven output shaft element for driving at least one of the wheels.
  • the drive device comprises a transmission unit with two rotatably driven input shaft elements and with a rotatably driven output shaft element for driving at least the seat part and with a continuously circumferentially driven output shaft element for driving at least one of the wheels.
  • the rotatably driven output shaft member rotatable and the continuously rotating driven output shaft member can be continuously driven in rotation of the input shaft elements.
  • the rotatably driven input shaft elements are arranged operatively connected to the output shaft elements such that on the one hand the seat part and / or the backrest part of the seat oscillating and on the other a Radachsenelement the wheelchair are continuously driven in rotation of these input shaft elements.
  • the two input shaft elements which can be driven in a rotationally oscillating manner are in each case operatively connected to the output shaft element which can be driven in rotation by bevel gear elements and, on the other hand, to the output shaft element which can be continuously driven in rotation by a freewheel device.
  • the two input shaft elements are always in operative contact with each other via the bevel gear elements.
  • a further preferred embodiment thus provides, in particular from the standpoint of a robust lightweight construction, that an output bevel wheel element of the output shaft element that can be driven in rotation simultaneously meshes with an input bevel wheel element of the two input shaft elements which can be driven in a swinging manner.
  • the relevant components of the seat can be driven in an oscillating manner in the narrowest space within the meaning of the invention.
  • the two input bevel gear elements of the input shaft elements rotate about a common input axis of rotation.
  • the output bevel wheel element of the output shaft element which can be driven in rotation with these two input bevel wheel elements rotates about an output rotational axis, which is arranged perpendicular to the input rotational axis.
  • the dormitorkegelrad is at least partially disposed between the two input bevel gears, wherein the toastkegelrad opposite arranged free shaft end of the rotatably driven output shaft member facing the seat or in particular the seat part is arranged in the wheelchair.
  • a very low-maintenance drive device can be provided if the output shaft element which can be driven in a swinging manner comprises a bevel gear element and the output shaft element which can be driven continuously in the circumferential direction comprises a chain pinion element.
  • the continuously rotating driven output shaft member can be operatively connected here via a chain robust and low maintenance with a wheel axle of the wheelchair.
  • a muscle-operated lever arm element is arranged on the two rotatably driven input shaft elements.
  • the shoulder system of the user undergoes a good training effect
  • a stimulation especially of paralyzed lower body parts of the user succeeds when, at the same time, through these two muscle-powered lever arm elements, which are alternately moved back and forth to achieve a driving movement of the wheelchair the seat part in response to the alternately moving lever arm, for example oscillating transversely to the seat direction and / or swinging about a rotation axis.
  • the movements of the lever arm members and the seat portion or the backrest portion are linked together in a predetermined manner, so that a movement of the lever arm elements always a predetermined movement of the seat part and / or the backrest part entails. It does not matter whether one or two lever arm elements are provided.
  • a mechanical coupling by means of the present transmission in such a way that the seat part is rotated counterclockwise about the vertical axis when viewed in the seat direction, the left lever arm is displaced forward in the direction of travel.
  • the right lever arm moves in the opposite direction to the rear.
  • the backrest portion correspondingly moves toward the left side of the left forwardly urged lever member.
  • the seat part rotates clockwise relative to the seat direction about the vertical axis when the right lever arm member is moved forward in the direction of travel.
  • the backrest part may in this case be displaced in the direction of the right side of the right-hand pushed forward lever element.
  • the seat part not only moves in a horizontal plane or parallel to this but also can be pivoted with respect to this horizontal plane, so that the seating comfort can be further improved.
  • a further possible embodiment variant provides that the input shaft elements can be decoupled from the continuously rotating output shaft element for driving at least one of the wheels, whereby in particular the seat part of the seat can be driven by the lever arm elements or the like without the wheelchair moving. This also allows the seating comfort on the wheelchair can be significantly increased.
  • the present transmission comprises a corresponding coupling device, by means of which at least at least one of the wheels or a relevant wheel axle element can be decoupled from the input shaft elements.
  • the two muscle-operated lever arm elements are pivoted manually in or against the seat direction and thereby swing the seat part and / or the backrest part transversely to the sitting direction to improve the seating comfort in the sense of the invention.
  • a freewheel device is arranged between the seat part and / or backrest part and components of the drive device in such a way that the seat part and / or the backrest part are decoupled relative to the drive device in such a way that drive forces are transmitted exclusively by components of the drive device to the seat part and Be transferred to the backrest part, but not from the seat part and / or the backrest part on components of the drive device or wheels or drive wheels of the wheelchair.
  • the present wheelchair is also characterized by ratchet elements on its drive wheels in order to move the wheelchair with a very high flexibility. So far, it is customary to equip a wheelchair either gripping elements or lever arm elements. Preferably, however, both ratchet elements and lever arm elements are used here for manually moving the wheelchair.
  • a brake actuating means for example a brake lever element, is provided on the lever arm elements, by means of which a single brake of a drive wheel can be actuated.
  • each of the drive wheels has a disc brake device, by means of which the respective drive wheel can be braked individually with the associated brake lever element. This allows the wheelchair to be steered very well.
  • the present wheelchair is a patient wheelchair, in particular for chronically impaired persons, and not a bicycle-like locomotion vehicle or the like in which a seat movement initiated by the driver is used to generate a driving force for driving used by wheels.
  • the in the FIGS. 1 to 4 shown manual wheelchair 1 has a frame 2, a seat 3 and rear two drive wheels 4 and 5 and the front two smaller steering wheels 6 and 7 (see only Figures 1C . 2C . 3C . 4C ) on.
  • the seat 3 consists essentially of a seat part 8 and a backrest part 9.
  • the smaller steering wheels 6 and 7 are rotatably mounted on the frame 2 in each case about a vertical axis not shown here separately.
  • the drive wheels 4, 5 each comprise a gripping tire 10 (numbered only by way of example), by means of which they can be manually rotated.
  • Both drive wheels 4 and 5 have a common Radachsenelement 11 and are hereby rotatably mounted in the present case not shown bushings on the frame 2.
  • the seat 3 of the wheelchair 1 defines a seat direction 12 on the wheelchair 1, the seat direction 12 coinciding with the forward straight-ahead direction 13.
  • the wheelchair 1 has a drive device 15 for driving the two drive wheels 4 and 5.
  • the drive device 15 comprises two muscle-operated lever arm elements 16 and 17, which can be alternately pushed forward by the user of the wheelchair 1 manually in the seat direction 12 and manually retracted against the viewing direction 12.
  • the drive device 15 comprises a gear unit 20, which is placed below the seat 3 in the frame 2 of the wheelchair 1.
  • This transmission unit 20 will also be described below in connection with the illustrations of Figures 6A, 6B and 6C described in more detail.
  • the gear unit 20 by means of the gear unit 20, the alternating manual drive movements of the two lever members 16 and 17 are transmitted to the Radachsenelement 11 so that the drive wheels 4 and 5 can rotate continuously in a direction of rotation and the wheelchair 1 thus moves, for example, in the forward straight ahead 13 can be.
  • these alternating manual drive movements of the two lever members 16 and 17 can be used according to the invention to relocate the seat part 8 and the backrest part 9 relative to the frame 2 in order to move the buttocks of sitting on the seat 3 user.
  • a drive of the drive wheels 4 and 5 by the movements of the seat 3 and the backrest part 9 is hereby excluded by a constructively designed according to the transmission unit 20.
  • the seat part 8 and the backrest part 9 are mounted by means of a seat suspension device 21 not shown in detail on the frame 2, that both the seat part 8 and the backrest part 9 to a Wegteilmittenlage 22 and a rectiflehnenteilmittenlage 23 (see FIGS. 1 and 3 ) are laterally deflectable.
  • the seat part 8 is rotatably supported about a vertical axis 24. It can thus be deflected in a horizontal plane 25 with respect to its front end 26 and its rear end 27 with respect to the seat direction 12 radially 28 oscillating.
  • the seat part 8 could advantageously swing around a horizontal axis 24A, which is arranged in the horizontal plane 25 in the seat direction 12 in alignment, according to the Kippraumen 28A, so that the seat part 8 can also be tilted out of the horizontal plane 25 when the two lever members 16 and 17 are moved by hand.
  • this variant of the sake of completeness is indeed drawn, but is dispensed with this additional function to keep the wheelchair 1 structurally very simple.
  • the backrest part 9 is connected via a bracket member 29 with the seat suspension device 21 such that it is deflected laterally in the deflection of the seat part 8 about the vertical axis 24 from its backrest part center position 23.
  • the backrest part 9 always moves laterally opposite to the direction in which the rear end 27 of the seat part 8 is deflected, whereby the buttocks and the lower back of the user are moved accordingly.
  • the backrest part 9 is stable and well guided even under load, it is additionally supported by slide elements 30 and 31 on a curved cross-member element 32 of the frame 2.
  • the backrest part 9 is additionally mounted radially displaceably on the frame 2 along a curved cam track 33.
  • the wheelchair 1 according to the representations of FIGS. 1 is in a rest mode position 34, in which the seat part 8 in the Wegteilmittenlage 22 and the backrest part 9 are in the scholarlehnenteilmittenlage 23, the wheelchair 1 according to the representations of Figures 2 shown in a first operating position 35, in which the left lever member 17 is pushed forward in the seat direction 12 and the right lever member 16 is pulled back accordingly against the seat direction 12.
  • the seat part 8 is rotated about the vertical axis 24 and with its rear end 27 in the direction of the right lever arm member 16 from the Wegteilmittenlage 22 out.
  • the backrest part 9 is deflected out of its backrest part center layer 23 out in the direction of the left lever arm element 17.
  • the wheelchair 1 is in a further operating position 36, as shown in the illustrations of FIGS. 4 shown.
  • the transmission unit 20 already mentioned above comprises a housing, not shown here, for protecting the individual transmission components (see in particular FIGS. 6 ).
  • These transmission components comprise two rotatably driven input shaft elements 40 and 41, each having an outer pin 42 and 43, to which each one of the two lever arm members 16 and 17 is rotatably mounted. In this respect, movements of the two lever arm elements 16 and 17 can be transmitted to the corresponding input shaft element 40 or 41.
  • the transmission components comprise a rotatably driven output shaft member 44 for driving the seat part 8 and the backrest part 9.
  • the rotatably driven output shaft member 44 has an outer pin 45 on which on the one hand the bracket member 29 with a corresponding hub member (not shown) is fixed. In this respect, first of all rotational movements of the rotatably driven output shaft element 44 can be transmitted directly to the backrest part 9.
  • an eccentric (not shown) of the seat suspension device 21 such that secondly by means of the rotational movements of the rotatably driven output shaft member 44, the seat part 8 can be deflected corresponding to the vertical axis 24.
  • the vertical axis 24 is different from a vertical axis of rotation 46 about which rotatably driven output shaft member 44 rotates. In this respect, the vertical axis 24 and the vertical axis of rotation 46 do not coincide.
  • the transmission components comprise a continuously rotating driven output shaft member 47 for driving the drive wheels 4 and 5.
  • the continuously rotating driven output shaft member 47 carries this a sprocket gear 48 for driving a chain 49, by means of which in turn the rotational movements of the continuously rotating driven output shaft member 47 on a pinion 50 of the Radachsenelements 11 can be transmitted.
  • the pinion 50 is advantageously seated directly on a housing shell 51 of a differential part 52 of the Radachsenelements 11, whereby the Radachsenelements 11 builds very compact overall. With the differential part 52 a very good cornering of the wheelchair 1 is guaranteed.
  • the continuously rotating driven output shaft member 47 is located together with the two input shaft elements 40 and 41 on a common input shaft axis of rotation 55. Namely, the continuously circumferentially driven output shaft member 47 for this purpose each with a freewheel device 56 and 57 (see FIG. 6C ) operatively connected to the respective input shaft member 40 and 41, respectively.
  • the two freewheel devices 56 and 57 are seated on bearing seat regions 58 and 59 of the continuously rotating output shaft member 47, wherein the bearing seat portion 58 is supported within a bushing portion 60 of the first input shaft member 40 and the bearing seat portion 59 within a bushing portion 61 of the second input shaft member 41.
  • the two freewheel devices 56 and 57 are selected in this embodiment such that with them from the muscle-operated lever arm elements 16 and 17 respectively to the two input shaft elements 40 and 41 initiated driving forces can be transmitted directly to the continuously rotating driven output shaft member 47 when the muscle-operated lever arm elements 16 and 17 are manually pressed by the user each in the sitting direction 12 forward.
  • This circulation direction 62 allows movement of the wheelchair 1, in particular in the straight-ahead direction 13.
  • the drive wheels 4 and 5 can be actuated correspondingly manually via the grip tires 10.
  • the two freewheel devices 56 and 57 are each supported in this embodiment by means of roller or needle bearings.
  • the bevel gear 64 consists essentially of a friendshipkegelradelement 65 of the rotatably driven output shaft member 44 and each a regardsskegelradelement 66 of the first input shaft member 40 and a Genevagelradelement 67 of the second input shaft member 41st
  • the Caribbeangelradelement 65 is fixed on the rotatably driven output shaft member 44 by means of a clamping set not shown here in detail and the respectivelyskegelradieri 66 and 67 are respectively glued to the respective input shaft member 40 and 41. It is understood that the bevel gear elements 65, 66 and 67 may alternatively also be shrunk.
  • the Superkegelradelement 65 is always with the two mutualskegelradelementen 66 and 67 in engagement, whereby the structure of the gear unit 20 is structurally simple and robust.
  • the contestkegelradelement 65 meshes with the two thoroughlyskegelradelementen 66 and 67 on a side facing the seat, so that the rotatably driven output shaft member 44 structurally simple directly with the components of the seat suspension device 21 can be mechanically connected.
  • the output shaft member 44 is mounted with another ball bearing device 70 also in this housing.
  • the conventional wheelchair 101 has a frame 102, which, however, is hinged, a seat 103 and two drive wheels 104 and 105 and two smaller steering wheels 106 and 107th
  • the seat 3 dismantled and then removed and replaced by the retrofit kit 80, which includes a complete drive means 115.
  • the drive device 115 Since the drive device 115 is almost identical to the drive device 15 of the wheelchair 1, the components of the drive device 115 are provided with identical reference numerals. A new functional description is omitted in order to avoid repetition. Rather, in this regard, the figure description of FIGS. 1 to 4 and specifically with regard to the structure of the transmission unit 20 is on the FIGS. 6 directed.
  • the drive device 115 of the retrofit kit 80 includes the seat suspension device 21, by means of which the seat part 8 and the backrest part 9 of the seat 3 is displaceable relative to the frame 102. Accordingly, also in the Retrofit kit 80, the transmission 20 mechanically coupled to the seat suspension device 21 in the manner described above or operatively connected. To drive the drive device 115, the two muscle-operated lever arm elements 16 and 17 are again provided. And the drive wheels 104, 105 are connected by the Radachsenelement 11 with the drive means 115.
EP13005159.2A 2012-11-02 2013-10-31 Fauteuil roulant et procédé de fonctionnement d'un fauteuil roulant Active EP2727568B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP15161158.9A EP2905004B1 (fr) 2012-11-02 2013-10-31 Dispositif d'entraînement d'un fauteuil roulant
EP15161154.8A EP2905003B1 (fr) 2012-11-02 2013-10-31 Jeu de modification pour un fauteuil roulant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012021592.4A DE102012021592B4 (de) 2012-11-02 2012-11-02 Rollstühle und Nachrüstsatz für einen Rollstuhl

Related Child Applications (4)

Application Number Title Priority Date Filing Date
EP15161154.8A Division EP2905003B1 (fr) 2012-11-02 2013-10-31 Jeu de modification pour un fauteuil roulant
EP15161154.8A Division-Into EP2905003B1 (fr) 2012-11-02 2013-10-31 Jeu de modification pour un fauteuil roulant
EP15161158.9A Division EP2905004B1 (fr) 2012-11-02 2013-10-31 Dispositif d'entraînement d'un fauteuil roulant
EP15161158.9A Division-Into EP2905004B1 (fr) 2012-11-02 2013-10-31 Dispositif d'entraînement d'un fauteuil roulant

Publications (2)

Publication Number Publication Date
EP2727568A1 true EP2727568A1 (fr) 2014-05-07
EP2727568B1 EP2727568B1 (fr) 2015-12-09

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Family Applications (3)

Application Number Title Priority Date Filing Date
EP15161154.8A Not-in-force EP2905003B1 (fr) 2012-11-02 2013-10-31 Jeu de modification pour un fauteuil roulant
EP13005159.2A Active EP2727568B1 (fr) 2012-11-02 2013-10-31 Fauteuil roulant et procédé de fonctionnement d'un fauteuil roulant
EP15161158.9A Not-in-force EP2905004B1 (fr) 2012-11-02 2013-10-31 Dispositif d'entraînement d'un fauteuil roulant

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP15161154.8A Not-in-force EP2905003B1 (fr) 2012-11-02 2013-10-31 Jeu de modification pour un fauteuil roulant

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP15161158.9A Not-in-force EP2905004B1 (fr) 2012-11-02 2013-10-31 Dispositif d'entraînement d'un fauteuil roulant

Country Status (3)

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EP (3) EP2905003B1 (fr)
DE (1) DE102012021592B4 (fr)
DK (1) DK2727568T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018189003A1 (fr) * 2017-04-12 2018-10-18 Desino Gmbh Dispositif de fauteuil roulant pour un mouvement actif d'un unité de siège d'un fauteuil roulant
CN112515868A (zh) * 2020-12-17 2021-03-19 杨维 一种外科护理便捷轮椅

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017106472A1 (de) 2017-03-27 2018-09-27 Desino Gmbh Manuell betreibbarer Rollstuhl

Citations (1)

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GB191005907A (en) * 1909-03-09 1910-08-11 Daniel Rupley Improvements in Velocipede Chairs, more particularly for use by Invalids.

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DE121860C (fr) *
DE88425C (fr) *
DE81124C (fr) * 1894-10-15 1895-05-11
DE3534266A1 (de) * 1985-09-26 1986-02-20 Fritz Dipl.-Ing. 4570 Quakenbrück Becker Muskelkraftfahrzeug mit ausgeglichenem pendelantrieb
DE8810187U1 (fr) * 1988-08-10 1988-12-08 Bentronic Gesellschaft Fuer Medizin-Elektronik Mbh, 8069 Wolnzach, De
EP0900555A3 (fr) * 1997-09-08 1999-10-06 Sunrise Medical HHG Inc. Fauteuil roulant avec siège basculable
CH706683A2 (de) * 2012-06-27 2013-12-31 Hasan Hueseyin Isik Rollstuhl.

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
GB191005907A (en) * 1909-03-09 1910-08-11 Daniel Rupley Improvements in Velocipede Chairs, more particularly for use by Invalids.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018189003A1 (fr) * 2017-04-12 2018-10-18 Desino Gmbh Dispositif de fauteuil roulant pour un mouvement actif d'un unité de siège d'un fauteuil roulant
CN111093587A (zh) * 2017-04-12 2020-05-01 德西诺有限责任公司 用于实现轮椅的座椅单元的主动运动的轮椅装置
US11045368B2 (en) 2017-04-12 2021-06-29 Desino Gmbh Wheelchair device for actively moving a seat unit of a wheelchair
CN112515868A (zh) * 2020-12-17 2021-03-19 杨维 一种外科护理便捷轮椅

Also Published As

Publication number Publication date
EP2905004A1 (fr) 2015-08-12
DE102012021592A1 (de) 2014-05-08
DE102012021592B4 (de) 2014-12-18
EP2905003B1 (fr) 2017-05-17
EP2905004B1 (fr) 2017-05-17
EP2727568B1 (fr) 2015-12-09
DK2727568T3 (en) 2016-03-14
EP2905003A1 (fr) 2015-08-12

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