EP3609451A1 - Rollstuhlvorrichtung zu einer aktiven bewegung einer sitzeinheit eines rollstuhls - Google Patents
Rollstuhlvorrichtung zu einer aktiven bewegung einer sitzeinheit eines rollstuhlsInfo
- Publication number
- EP3609451A1 EP3609451A1 EP18717871.0A EP18717871A EP3609451A1 EP 3609451 A1 EP3609451 A1 EP 3609451A1 EP 18717871 A EP18717871 A EP 18717871A EP 3609451 A1 EP3609451 A1 EP 3609451A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- unit
- wheelchair
- conversion unit
- cam gear
- seat
- 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
Links
- 230000033001 locomotion Effects 0.000 claims abstract description 196
- 238000006243 chemical reaction Methods 0.000 claims abstract description 79
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 230000004913 activation Effects 0.000 claims description 35
- 230000009471 action Effects 0.000 claims description 16
- 238000005096 rolling process Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 description 17
- 238000010079 rubber tapping Methods 0.000 description 10
- 210000003205 muscle Anatomy 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 238000009420 retrofitting Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000009849 deactivation Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004137 mechanical activation Methods 0.000 description 1
- 230000003387 muscular Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000001360 synchronised effect Effects 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
- A61G5/10—Parts, details or accessories
- A61G5/1056—Arrangements for adjusting the seat
-
- 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
- A61G5/1091—Cushions, seats or abduction devices
-
- 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
- A61G5/1067—Arrangements for adjusting the seat adjusting the backrest relative to 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
- A61G5/1081—Parts, details or accessories with shock absorbers or other suspension arrangements between frame and seat
-
- 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
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/05—Parts, details or accessories of beds
- A61G7/057—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor
- A61G7/0573—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor with mattress frames having alternately movable parts
Definitions
- Wheelchair device for active movement of a seat unit of a wheelchair
- Seat unit in particular a seat part and / or a backrest part of the seat unit, of a wheelchair according to claim 1.
- DE 10 2012 021 592 A1 has already proposed a wheelchair device for actively moving a seat unit, in particular a seat part and / or a backrest part of the seat unit, of a wheelchair, which has at least one at least partially disposable on at least one drive wheel of the wheelchair
- Moving unit comprises, which is intended to convert a movement of the at least one drive wheel in a movement of the seat unit.
- JP 2016 106875 A has already proposed a wheelchair device for active movement of a footrest, wherein the wheelchair device has at least one
- Moving unit comprises, which is intended to convert a movement of at least one drive wheel in a movement of the footrest.
- the object of the invention is, in particular, a generic
- the invention relates to a wheelchair device for actively moving a seat unit, in particular a seat part and / or a backrest part of the seat unit, of a wheelchair, having at least one motion conversion unit which can be arranged at least partially on at least one drive wheel of the wheelchair and which is intended to effect a movement of the wheelchair to convert at least one drive wheel in a movement of the seat unit.
- the motion conversion unit is designed as a cam gear unit, wherein the motion conversion unit at least one action on the seat part at least one movably mounted on the seat part
- cam gear element having at least one contact surface with at least one motion guide track at least one other
- Cam element of the motion conversion unit cooperates.
- a “cam mechanism unit” is to be understood in particular as a unit which is provided, depending on a scanning of at least one rotatably mounted or translationally mounted cam gear element, a rotary drive or a translational drive of a rotatable or translationally mounted further
- cam gear element To realize cam gear element.
- the term "provided” should be understood to mean in particular specially designed and / or specially equipped,
- an element and / or a unit for a specific function is intended to be understood as meaning that the element and / or the unit fulfill this specific function meets and / or executes at least one application and / or operating state.
- the motion conversion unit in particular at least one
- Curve transmission element of the motion conversion unit at least partially arranged on a frame or on a frame of the wheelchair, in particular arranged.
- the motion conversion unit in particular at least one further cam gear element of the motion conversion unit, can be arranged, in particular arranged, at least partially on the at least one drive wheel of the wheelchair.
- the motion conversion unit is preferably provided to a
- Reference direction especially when viewed in a projection plane, include an angle of 90 ° and the angle has a maximum deviation of in particular less than 8 °, advantageously less than 5 ° and particularly advantageously less than 2 °.
- Movement axis of the seat unit may extend at least substantially perpendicular or at least substantially parallel to a seat surface of the seat unit.
- substantially parallel is meant in particular an alignment of a direction relative to a reference direction, in particular in a plane, wherein the direction relative to the reference direction a deviation of particular less than 8 °, advantageously less than 5 ° and particularly advantageously smaller than 2 °
- Motion conversion unit is preferably provided to drive the seat unit oscillating about the axis of movement, in particular in dependence on a
- the wheelchair device is preferably attachable to the wheelchair when making a wheelchair.
- the wheelchair device is also conceivable that the
- Wheelchair device is designed as a retrofit kit that can be mounted on an existing wheelchair, in particular to equip the existing wheelchair after manufacture with the wheelchair device according to the invention.
- the embodiment according to the invention can advantageously be a structurally simple
- Embodiment of the wheelchair device can be realized to actively drive the seat unit. It can advantageously be used structurally simple rotation of the at least one drive wheel to realize an active movement of the seat unit. It can be advantageously realized a comfortable retrofitting a wheelchair with the wheelchair device according to the invention, in particular with little effort.
- the cam gear element is preferably movable on the frame or on the frame of the wheelchair storable, in particular stored. This is preferred
- Curve transmission element pivotally mounted on the frame or on the frame of the wheelchair, in particular stored.
- a pivot axis of the runs Preferably, a pivot axis of the runs
- Cam gear element at least substantially parallel to the axis of rotation of the at least one drive wheel.
- Curve transmission element translationally movable on the frame or on the frame the wheelchair storable, in particular stored, is.
- the cam gear element comprises at least one seat contact surface, by means of which the cam gear element on the seat unit,
- the seat contact surface is provided to abut on a seat surface of the seat part facing away from the side of the seat part on the seat part. Alternatively or additionally, this is
- Curve transmission element with at least one end on the seat unit, in particular on the seat part of the seat unit, can be fixed, in particular fixed, in particular by means of a positive and / or non-positive connection.
- the further cam gear element is preferably non-rotatably arranged on the at least one drive wheel, in particular arranged.
- the further cam gear element is preferably rotatable together with the at least one drive wheel about the axis of rotation of the drive wheel.
- the motion guide track preferably forms an outer surface of the other
- Cam element is preferably at one of a hub of the at least one
- the motion guide track is formed as a groove, which is introduced into the further cam gear element or as rib-shaped
- Guide extension is formed, which is attached to the further cam gear element, in particular integrally formed with the further cam gear element.
- Rotational movement of the at least one drive wheel can be used to realize an active movement of the seat unit. It can be beneficial to a comfortable
- Retrofitting a wheelchair can be realized with the wheelchair device according to the invention, in particular with little effort.
- the motion conversion unit at least one
- Curve gear member having, arranged on the at least one friction reducing element, in particular a rolling element, the motion conversion unit, which cooperates with a motion guide track of
- Motion conversion unit in particular at least one further Cam gear element of the motion conversion unit, is provided.
- Friction reducing element may form the contact surface of the cam gear element, with the motion guide track of the further cam gear element
- the friction reducing element may be formed as a sliding surface element, which is provided, during a movement of the other
- the friction reducing element can be used as a movably mounted rolling element, such as a roller, as a roller, as
- Be formed which is intended to roll during a movement of the further cam gear member relative to the cam member on the motion guide track.
- Rotational movement of the at least one drive wheel can be used to realize an active movement of the seat unit.
- the motion conversion unit has at least one, in particular further, cam gear element which can be arranged, in particular arranged, on the at least one drive wheel and at least one
- Movement guide path having a non-circular, in particular oval or elliptical course.
- non-circular is intended in particular to define a geometric configuration which is different from an exact circle and at least substantially free of edges or corners, such as
- the further cam gear element is preferably annular, wherein one, in particular the
- Motion guide path at least partially limiting and / or forming
- the inner edge and / or the inner surface of the further cam gear element is preferably on the side of the hub of the at least one drive wheel facing side of the other Cam element arranged.
- the inner edge and / or the inner surface of the further cam gear element preferably defines a recess, which has a non-circular, in particular oval or elliptical, outer contour.
- Recess is preferably limited by the motion guide track.
- the inner surface of the further cam gear element preferably extends at least substantially parallel to the axis of rotation of the at least one drive wheel.
- Movement of the seat unit is usable. It can advantageously be used structurally simple rotation of the at least one drive wheel to realize an active movement of the seat unit.
- the motion conversion unit at least one
- Movement conversion unit forms.
- the rocker element forms the
- Curve transmission element which is fixed with one end to the seat unit, in particular on the seat part of the seat unit, in particular fixed.
- the rocker element is preferably movable in response to a rotational movement of the at least one drive wheel and an interaction of arranged on the formed as a rocker cam friction element and the motion guide track of the at least one drive wheel arranged further cam element around the pivot axis of the cam element, in particular oscillating about the pivot axis movably mounted the cam gear element.
- a rotational movement of the at least one drive wheel can be used in a structurally simple manner in order to realize an active movement of the seat unit. It can be advantageous to cause an oscillating movement of the seat unit.
- the motion conversion unit at least one
- the movably mounted tapping element is preferably movable stored rolling element, in particular as a role, as a wheel, as a ball bearing o. The like., Is formed.
- the movably mounted tapping element is preferably designed as a movably mounted rolling element which is rotatable on the rocker element
- the tapping element is arranged on the further side of the cam mechanism element, which is the side of the
- the tapping element is formed by means of the rolling bearing
- Friction reducing element rotatably mounted on the cam element.
- the tapping element forms the contact surface of the cam gear element. It is also conceivable that the tapping element and the friction reducing element are at least partially formed in one piece.
- Motion guide track of the further cam gear element can be realized. It can structurally simple rotation of the at least one drive wheel can be used to realize an active movement of the seat unit. It can be advantageous to cause an oscillating movement of the seat unit.
- the motion conversion unit has at least one, in particular further, cam gear element, which is designed as a cam disk and on which at least one drive wheel can be arranged, in particular arranged.
- the further cam gear element can be arranged, in particular fixable, together with a fixing unit fixing a gripping tire of the at least one drive wheel on the at least one drive wheel.
- the further cam gear element designed as a cam disk can preferably be arranged on a side of the at least one drive wheel facing the frame or the frame of the wheelchair.
- Curve transmission element can be used. It can be beneficial to a comfortable
- Retrofitting a wheelchair can be realized with the wheelchair device according to the invention, in particular with little effort. It can be constructively simple Rotational movement of the at least one drive wheel can be used to realize an active movement of the seat unit.
- the motion conversion unit at least one
- Has spring element which is provided to act on at least one cam gear element of the motion conversion unit with a spring force.
- Spring element is preferably provided to act on the cam element formed as a rocker element with a spring force. This is preferred
- Spring element provided to act on the cam gear element with a spring force acting in the direction of the further cam gear element.
- a “spring element” is to be understood in particular as a macroscopic element which has at least one extension that is elastically changeable by at least 10%, in particular by at least 20%, preferably by at least 30% and particularly advantageously by at least 50% in a normal operating state , and which in particular produces a counterforce which is dependent on a change in the extent and preferably proportional to the change and which counteracts the change.
- Extension of an element is understood to mean, in particular, a maximum distance between two points of a vertical projection of the element onto a plane .
- a "macroscopic element” is to be understood as meaning, in particular, an element having an extension of at least 1 mm, in particular of at least 5 mm and preferably of at least 10 mm,
- the spring element is designed as a helical compression spring another, a person skilled in the appear appropriate design, such as an embodiment as a coil spring, as Evolutfeder, as
- Disk spring as a leg spring o.
- the like By means of the embodiment according to the invention can advantageously a reliable concern of the cam gear element to the other
- Curve transmission element can be realized. It can advantageously be made possible a secure system of the cam element arranged on the tapping element on the motion guide track.
- the wheelchair device at least one
- the activation unit is preferably designed as a mechanical activation unit that can be manually operated by an operator.
- at least one activation element such as a
- Activation lever o The like., Manually operated by an operator, in particular movable.
- the activation element is provided, as a result of an operation by an operator, a motion transmission of the
- Curve transmission element to the seat unit, in particular the seat part and / or the backrest part, to release or lock, in particular to activate or deactivate an action of the motion conversion unit on the seat unit, in particular the seat part and / or the backrest part.
- the activation element may be provided to enable or block a movement possibility of the cam gear element.
- the activation element may alternatively or additionally
- the activation element may be provided to actively move the cam gear element, in particular along and / or around an activation axis which is different in particular from a movement axis, in particular a pivot axis, of the cam gear element and / or around which the cam gear element acts on the vehicle
- the activation unit is at least partially formed electronically and at least one electronic component, such as an electronic actuator o. The like.
- the activation unit has a communication unit which is provided, in particular wirelessly, data with an external unit, such as a smartphone, a tablet, a PC or the like. exchange, in particular via an installed on the external unit application, by means of which the electronic activation unit is controlled.
- Activation unit are also conceivable.
- the embodiment according to the invention can advantageously be an activation or deactivation of an active movement of the
- a wheelchair in particular a manually operable wheelchair, is proposed with at least one wheelchair device according to the invention.
- the wheelchair comprises at least two rotatably movably mounted drive wheels, at least one drive unit, which has at least one movably mounted lever element, in particular at least two movably mounted lever elements, which is / are provided at least for a manual drive of the drive wheels.
- the wheelchair comprises at least one brake unit for acting on the drive wheels and at least one operating unit, the at least one, in particular on the
- Lever element arranged, movably mounted steering actuator, which is intended to trigger the brake unit such that the
- Drive wheels are braked independently, in particular to one
- the at least one lever element is provided to drive the drive wheels by means of cooperation with at least one gear unit of the drive unit.
- the gear unit and the at least one lever element cooperate in such a way that a, in particular reciprocating, pivoting movement of the at least one lever element by means of the gear unit in a rotational movement of the drive wheels can be transferred.
- the wheelchair comprises the at least one drive wheel, on which at least the motion conversion unit of the wheelchair device is arranged, wherein the motion conversion unit is formed separately from the transmission unit to a rotating drive of the at least one drive wheel.
- the drive unit comprises at least two movable, in particular pivotable, mounted lever elements.
- the at least two lever elements are provided to drive the drive wheels by means of cooperation with the gear unit.
- gear unit sufficient.
- the gear unit is alternatively or additionally designed such that one, in particular alternating and / or opposite, movement of the at least two lever elements to a synchronized movement of the drive wheels can be used.
- the gear unit preferably comprises at least one freewheeling element which is provided for decoupling the at least one lever element or the at least two lever elements from a movement of the drive wheels, in particular for returning the at least one lever element or the at least two lever elements to an initial position realize.
- one of the at least two lever elements is arranged on different sides of the wheelchair, in particular a seat part or the frame of the wheelchair.
- the at least two lever elements are preferably movably coupled to one another, in particular coupled in opposite directions, preferably by means of the gear unit of the drive unit. During a movement of at least one of the lever elements in one direction, at least one further of the lever elements can be moved in an opposite direction.
- the manually operated wheelchair is designed to be powered by muscle power.
- the wheelchair is decoupled from the at least one movably mounted lever element is formed and driven only by an action of an operator force on the at least one drive wheel arranged ratchet or wheelchair has an electric drive unit to drive the drive wheels.
- the wheelchair device according to the invention and / or the wheelchair according to the invention should / should not be limited to the application and embodiment described above.
- the wheelchair device according to the invention and / or the wheelchair according to the invention can / have a number deviating from a number of individual elements, components and units specified herein for fulfilling a mode of operation described herein.
- values lying within the stated limits are also to be disclosed as disclosed and used as desired.
- Fig. 1 is a front view of a wheelchair according to the invention with a
- Wheelchair device according to the invention, wherein support and / or steering wheels of the wheelchair according to the invention are not shown, in a schematic representation,
- Fig. 2 is a detail view of a motion conversion unit of
- Wheelchair device in a schematic representation
- FIG. 3 is a detail view of at least partially on a seat unit of
- FIG. 5 shows a detailed view of the motion conversion unit arranged at least partially on a frame or on a frame of the wheelchair according to the invention in a schematic representation.
- the wheelchair 18 is preferably designed as a manually operable wheelchair. However, it is also conceivable that the wheelchair 18 is designed as a motor-driven wheelchair.
- the wheelchair 18 is preferably configured such that an operator can drive the wheelchair 18 with the action of a muscular force.
- the wheelchair 18 includes at least two rotatably movably mounted drive wheels 20, 22, at least one drive unit 46, which has at least one movably mounted lever element 48, 50, which at least to a manual drive of the drive wheels 20, 22, in particular due to an action of a muscle power of the operator, is provided.
- the drive unit 46 preferably comprises at least two movably mounted lever elements 48, 50.
- the wheelchair 18 comprises at least one brake unit 52 for acting on the drive wheels 20, 22 and at least one actuating unit 54, the at least one, in particular on the lever member 48, 50 arranged, movably mounted
- the actuating unit 54 of the wheelchair 18 comprises at least one, in particular on the lever member 48, 50 arranged, brake actuator 60, 62 for actuating the brake unit 52, wherein in response to an actuation of the brake actuator 60, 62, the drive wheels 20, 22 together by means of the brake unit 52 are braked, in particular to a reduction in speed of the drive wheels 20, 22 to a standstill.
- the steering actuator 56, 58 is rotatable and / or pivotable on
- Lever element 48, 50 stored.
- a movement axis 64, 66 of the at least one lever element 48, 50 runs transversely, in particular at least substantially perpendicular, to a main extension axis of the at least one lever element 48, 50.
- the at least one brake actuation element 60, 62 is on the at least one
- Steering actuator 56, 58 is rotatably and / or pivotally mounted together with the at least one steering actuator 56, 58, in particular about the axis of movement 64, 66 of the at least one
- the at least one brake actuating element 60, 62 is preferably designed as a brake lever which is pivotally mounted.
- a pivot axis 68, 70 extends transversely, in particular at least substantially perpendicular, to the movement axis 64, 66 of the at least one
- the actuating unit 54 has at least one coupling unit 72, by means of which the drive wheels 20, 22 associated brake elements 74, 76 of the brake unit 52 with the brake actuator 60, 62 and / or with the steering actuator 56, 58 are operatively connected.
- the brake elements 74, 76 are preferably designed as movably mounted brake shoes.
- the brake elements 74, 76 are provided to each act on a brake disc 78, 80 of the brake unit 52.
- the brake elements 74, 76 have another, a skilled person appear appropriate design, such as a
- Each of the drive wheels 20, 22 is preferably associated with a brake disc 78, 80.
- each of the drive wheels 20, 22 is associated with one of the brake elements 74, 76.
- the brake discs 78, 80 are assigned to the drive wheels 20, 22 in a manner known to a person skilled in the art.
- the wheelchair 18 has at least one frame 82, the at least one seat unit 12, the two drive wheels 20, 22 and two support and / or steering wheels (not shown here, in Figure 5, at least one bearing point of the support and / or steering wheels is shown).
- the seat unit 12 comprises the at least one seat part 14 and the at least one backrest part 16.
- the support and / or steering wheels are rotatably mounted on the frame 82 in a manner already known to a person skilled in the art about a vertical axis not drawn separately.
- the drive wheels 20, 22 each comprise a gripping tire 84, 86 which has a configuration and / or arrangement already known to a person skilled in the art on each of the drive wheels 20, 22.
- the arranged on the drive wheels 20, 22 gripping tires 84, 86 for an alternative manual drive of the drive wheels 20, 22 are provided.
- Drive wheels 20, 22 are preferably rotatably mounted on the frame 82 by means of a common Radachsenelements 88 of the wheelchair 18 in bushings not shown.
- the seat unit 12 of the wheelchair 18 defines a seating direction of the wheelchair 18, in particular by an arrangement of the seat part 14 and the backrest part 16 relative to one another and relative to the frame 82.
- the seat direction coincides with a forward straight-ahead direction.
- the drive unit 46 is at least partially disposed on the frame 82.
- the at least one lever element 48, 50 is provided to drive the drive wheels 20, 22 by means of cooperation with at least one gear unit 44 of the drive unit 46.
- the gear unit 44 and the at least one lever element 48, 50 cooperate such that, in particular reciprocating, pivotal movement of the at least one lever element 48, 50 by means of the gear unit 44 in a rotational movement of the drive wheels 20, 22 can be transferred.
- the at least two lever elements 48, 50 are provided to drive the drive wheels 20, 22 by means of cooperation with the gear unit 44.
- the wheelchair 18 preferably comprises the at least one drive wheel 20, 22, on which at least one motion conversion unit 24 of the wheelchair device 10 is arranged for active movement of the seat unit 12 of the wheelchair 18, wherein the
- Movement conversion unit 24 separately from the transmission unit 44, which is provided to drive the at least one drive wheel 20, 22 as a result of an action of an operator force on at least one of the lever members 48, 50, is formed.
- the gear unit 44 comprises at least one freewheeling element (not shown in detail here), which is provided to decouple the at least one lever element 48, 50 or the at least two lever elements 48, 50 from a movement of the drive wheels 20, 22, in particular to a return of at least one
- one of the at least two lever elements 48, 50 is arranged on different sides of the wheelchair 18, in particular of the seat part 14 or of the frame 82 of the wheelchair 18.
- the at least two lever elements 48, 50 are preferably movably coupled to one another, in particular coupled in opposite directions, preferably by means of the gear unit 44 of the drive unit 46. At least one of the lever elements 48, 50 in one direction moves at least one of the lever elements 48, 50 in a
- the wheelchair 18 is movable opposite direction.
- the wheelchair 18 is a wheelchair 18
- wheelchair 18 in an alternative embodiment decoupled from the drive unit 46 and / or the
- Gear unit 44 is formed and alone by an action of a muscle force of an operator on the grip tires 84, 86 is driven.
- the wheelchair device 10 for active movement of the seat unit 12, in particular the seat part 14 and / or the backrest part 16 of the seat unit 12, comprises at least the, at least partially on at least one of the drive wheels 20, 22 of the wheelchair 18 can be arranged, in particular arranged, motion conversion unit 24, the is provided, a movement of the at least one drive wheel 20, 22 in a
- the motion conversion unit 24 is preferably designed as a cam gear unit.
- the motion conversion unit 24 has at least one cam gear element 26 that can be arranged on the seat unit 12, in particular arranged, and has at least one contact surface 28 which interacts with at least one motion guide track 30 of at least one further cam gear element 32 of the motion conversion unit 24 (see FIGS ).
- the movement conversion unit 24 has at least one action on the seat part 14, at least the movably mounted cam gear element 26 that can be arranged on the seat part 14 and that has at least the contact surface 28 that at least has the further movement path 30 at least
- Cam element 32 of the motion conversion unit 24 cooperates.
- the cam gear element 26 comprises at least one seat contact surface, by means of which the cam gear element 26 on the seat unit 12, in particular on the seat part 14, can be applied, in particular rests.
- the seat contact surface is provided to abut on a seat surface of the seat part 14 facing away from the side of the seat part 14 on the seat part 14.
- the further cam gear element 32 is preferably arranged on at least one of the drive wheels 20, 22, in particular non-rotatably fixed to one of the drive wheels 20, 22.
- At least one further cam gear element 32 is preferably arranged on each of the drive wheels 20, 22.
- each of the drive wheels 20, 22 is at least one single cam gear member 26 provided thereto with the other on the corresponding drive wheel 20, 22nd
- Cam gear element 26 and a single further cam gear element 32 is assigned.
- the cam gear element 26 is preferably designed as a rocker element 38.
- the cam gear element 26 is preferably by means of a bearing element 90 of
- Movement conversion unit 24 movably mounted on the frame 82.
- the cam gear element 26 has a pivot axis 92, which at least in
- Movement of the seat unit 12 is mounted translationally on the frame 82, wherein, for example, a translational axis of the cam gear element 26 at least substantially perpendicular to the axis of rotation 94 of the at least one drive wheel 20, 22, in particular at least substantially parallel to a longitudinal axis of a frame member of the frame 82, the a guideway to a linear guide of the cam gear element 26 includes.
- the cam gear element 26 is fixed with at least one end to the seat unit 12, in particular to the seat part 14, in particular to a movement of the seat part 14 in response to a movement of the cam gear element 26.
- Cam mechanism element 26 is preferably fixed to the seat part 14 on a side of the seat part 14 facing away from a seat surface 36 of the seat part 14. It is also conceivable that the cam gear element 26 is provided decoupled from a fixation on the seat part 14 to an action on the seat part 14, such as by a stop and / or concerns on the seat part 14.
- the motion conversion unit 24 has at least the cam gear element 26 in which at least one friction-reducing element 34, in particular a rolling element, of the motion conversion unit 24 is arranged, which is provided for cooperation with the motion guide track 30 of the motion conversion unit 24, in particular at least the further cam gear element 32 of the motion conversion unit 24.
- the friction reducing element 34 is preferably arranged on a further cam gear element 32, in particular the motion guide track 30, facing the end of the cam gear element 26.
- Friction reducing element 34 is preferably designed as a roller bearing, in particular as a ball bearing.
- the motion conversion unit 24 has at least the cam gear element 26, which has at least one movably mounted pick-off element 40.
- Pick-off element 40 is preferably rotatable by means of the friction-reducing element 34 mounted on the cam gear element 26.
- the tapping element 40 is preferably designed as a rolling element, in particular as a roller, as a wheel, as a roller o. The like., Which is intended to roll on the motion guide track 30.
- Friction reducing element 34 is preferably provided, in particular indirectly, via the tapping element 40 with the motion guide track 30th
- the motion conversion unit 26 is decoupled from the tapping element 40 is formed in an alternative embodiment and provided the friction reducing element 34, directly to the
- Motion guide track 30 cooperate, in particular to form the contact surface 28 of the cam gear element 26 and on the motion guide path 30th
- the motion conversion unit 24 has at least the further cam gear element 32, which is designed as a cam and on which at least one drive wheel 20, 22 is arranged.
- the further cam gear element 32 preferably has an annular configuration, wherein an outer contour of the other
- Cam gear element 32 a to an inner contour of the other
- Curve transmission element 32 has different configuration.
- the outer contour of the further cam gear element 32 preferably has a circular course.
- the inner contour of the further cam gear element 32 preferably has a non-circular course.
- the outer contour of the further cam gear element 32 is preferably formed by a circular line.
- Cam gear element 32 is preferably formed deviating from a circular line.
- the further cam gear element 32 forms the motion guide track 30, with which the cam gear element 26, in particular the contact surface 28 of
- Cam gear element 26 cooperates.
- the motion guide track 30 is preferably formed by the inner contour of the further cam gear element 32.
- the motion conversion unit 24 has at least the further cam gear element 32 which can be arranged, in particular arranged, on the at least one drive wheel 20, 22 and has at least the motion guideway 30, which has a non-circular, in particular oval or elliptical course (see FIG. ,
- the inner contour of the further cam gear element 32 is preferably on one of a hub of the at least one drive wheel 20, 22 facing side of the other
- Cam mechanism element 32 is arranged.
- the motion conversion unit 24 has at least one spring element 42, which is provided to at least the cam gear element 26 of the
- Motion conversion unit 24 to apply a spring force.
- Spring element 42 is preferably provided to bias the cam gear element 26 with a spring force in the direction of the further cam gear element 32.
- the spring element 42 is preferably designed as a helical compression spring. However, it is also conceivable that the spring element 42 has another, a skilled person appear appropriate design, such as a design as a leg spring, as Evolutfeder, as a tension spring o. The like.
- the spring element 42 is supported with at least one end on the frame 82nd from. With a further end, the spring element 42 is preferably supported on the cam gear element 26. It can be advantageously realized a reliable system of the cam gear element 26 on the motion guide track 30 to an active movement of the seat unit 12.
- the seat part 14 and / or the backrest part 16 are mounted by means of a seat suspension device not shown here on the frame 82, that the seat part 14 and / or the backrest part 16 are laterally deflectable about a Wegteilmittenlage and / or a legislative dilemmamittenlage.
- the seat part 14 is preferably mounted movably about a horizontal axis 96.
- the seat part 14 is preferably pivotally mounted about the horizontal axis 96.
- the horizontal axis 96 preferably runs at least substantially parallel to a seat surface 36.
- the seat part 14 could advantageously be movably mounted about a vertical axis 98, which runs at least substantially perpendicular to the horizontal axis 96 and / or to the seat surface 36, so that the seat part 14 would oscillate oscillating, for example, in a horizontal plane.
- the backrest part 16 is preferably via a transmission unit not shown with the seat part 14 and / or with the
- Motion conversion unit 24 connectable, in particular connected.
- the backrest part 16 is connected to the seat part 14 and / or to the motion conversion unit 24 by means of the transmission unit such that the backrest part 16 at a deflection of the seat part 14 about the vertical axis 98 in accordance with its perennially deflected.
- a movement of the at least one drive wheel 20, 22 is converted into a movement of the seat unit 12.
- Cam gear element 32 on the at least one drive wheel 20, 22, the further cam gear element 32 is driven in rotation together with the at least one drive wheel 20, 22, in particular by an action of a muscle force of an operator on the grip tires 84, 86 or via the lever members 48, 50th Das
- Cam gear member 26 cooperates with the motion guide track 30 of the further cam gear member 32 such that the cam member 26 due to rotation of the further cam gear member 32 about the pivot axis 92 of the
- Curve transmission element 26 is pivotable, in particular is pivoted, in particular due to a non-circular, in particular oval or elliptical, embodiment of the motion guide path 30. Die by the interaction of the
- Cam gear element 26 and the motion guide track 30 caused oscillating pivotal movement of the cam gear element 26 is on the seat unit 12, in particular the seat part 14, transferable.
- the seat unit 12 is particularly structurally simple by means of the motion conversion unit 24 actively in response to a rotation of the at least drive wheel 20, 22 movable.
- the wheelchair device 10 comprises at least one activation unit 100 which is provided to activate or deactivate an action of the motion conversion unit 24 on the seat unit 12, in particular the seat part 14 and / or the backrest part 16, in particular as a result of a manual operation by an operator ( see Figure 2).
- the activation unit 100 is preferably mechanical
- Activation unit formed, which is manually operable by an operator.
- At least one activation element such as an activation lever o.
- the activation element is provided, as a result of an operation by an operator, a motion transmission of the
- Cam member 26 to the seat unit 12, in particular the seat part 14 and / or the backrest part 16, to release or lock, in particular to activate or deactivate an action of the motion conversion unit 24 on the seat unit 12, in particular the seat part 14 and / or the backrest part 16.
- Activation element can be provided to enable or disable a movement possibility of the cam gear element 26.
- the activation element may alternatively or additionally be provided to enable or block a movement possibility of the seat unit 12, in particular of the seat part 14 and / or of the backrest part 16.
- the activation element can be provided to actively move the cam gear element 26, in particular along and / or around an activation axis, which is different in particular from a movement axis, in particular the pivot axis 92, of the cam gear element 26 and / or around the cam gear element 26 to one Acting on the seat unit 12, in particular on the seat part 14 and / or the backrest part 16, is movably mounted.
- the activation element may alternatively or additionally be provided to actively move the further cam gear element 32, in particular away from it
- the activation unit 100 is at least partially formed electronically and at least one electronic component, such as, for example, an electronic component an electronic actuator o. The like., Which is intended to activate or deactivate an action of the motion conversion unit 24 on the seat unit 12, in particular the seat portion 14 and / or the backrest portion 16. It is also conceivable that the activation unit 100 a
- Communication unit which is provided, in particular wireless, data with an external unit (not shown here), such as a
- Smartphone a tablet, a PC or the like. exchange, in particular via an application installed on the external unit, by means of which the electronic
- Activation unit is controlled. Further embodiments of the activation unit 100 that appear appropriate to a person skilled in the art are also conceivable. Preferably, the activation unit 100 is provided to synchronously on the individual drive wheels 20, 22 associated cam gear elements 26 and / or the other
- Cam elements 32 act. However, it is also conceivable that each of the individual drive wheels 20, 22 associated cam gear elements 26 and / or the further cam gear elements 32 is assigned its own activation element, which can be actuated independently of the respective other activation elements.
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)
- Transmission Devices (AREA)
- Handcart (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017107964.5A DE102017107964A1 (de) | 2017-04-12 | 2017-04-12 | Rollstuhlvorrichtung zu einer aktiven Bewegung einer Sitzeinheit eines Rollstuhls |
PCT/EP2018/058559 WO2018189003A1 (de) | 2017-04-12 | 2018-04-04 | Rollstuhlvorrichtung zu einer aktiven bewegung einer sitzeinheit eines rollstuhls |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3609451A1 true EP3609451A1 (de) | 2020-02-19 |
EP3609451B1 EP3609451B1 (de) | 2021-06-09 |
EP3609451B8 EP3609451B8 (de) | 2021-07-14 |
Family
ID=61972504
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18717871.0A Active EP3609451B8 (de) | 2017-04-12 | 2018-04-04 | Rollstuhlvorrichtung zu einer aktiven bewegung einer sitzeinheit eines rollstuhls |
Country Status (6)
Country | Link |
---|---|
US (1) | US11045368B2 (de) |
EP (1) | EP3609451B8 (de) |
JP (1) | JP6739826B2 (de) |
CN (1) | CN111093587A (de) |
DE (1) | DE102017107964A1 (de) |
WO (1) | WO2018189003A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11591041B2 (en) | 2019-01-07 | 2023-02-28 | Joel Weiss | Self-balancing, electronically-assisted, rideable devices |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6257609B1 (en) * | 1998-03-27 | 2001-07-10 | O'neill, Sr. Theodore C. | Tilt-in-space wheelchair |
US6168178B1 (en) * | 1998-05-02 | 2001-01-02 | Sunrise Medical Hhg Inc. | Convertible wheelchair and a method for converting a wheelchair chassis |
CA2311934C (en) * | 2000-06-19 | 2012-08-21 | Phil Mundy | Wheelchair with tiltable seat |
US6655503B1 (en) * | 2002-05-17 | 2003-12-02 | Thomas O. Moody | Anti-rollback brake |
US6902177B2 (en) * | 2003-06-11 | 2005-06-07 | Kudhara, Inc. | Mobility assistance vehicle |
GB2416153A (en) * | 2004-07-16 | 2006-01-18 | Andrew Ramon Brown | A drive system for a human powered vehicle |
US8251393B2 (en) * | 2008-10-15 | 2012-08-28 | Bonnie Fremgen, Llc | Circulation assisting wheelchair |
US7922187B2 (en) * | 2008-10-15 | 2011-04-12 | Bonnie Fremgen | Atrophy-reducing movable foot support apparatus |
US8844959B2 (en) * | 2009-10-28 | 2014-09-30 | Global Research Innovation And Technology L3C | Wheelchair with lever drivetrain |
CN102711704A (zh) * | 2009-11-17 | 2012-10-03 | 卞东奂 | 手动轮椅轮子以及控制该轮椅轮子的装置 |
AU2015249084B2 (en) * | 2012-02-09 | 2017-09-07 | Omeo Group Limited | Powered Mobility Device with Tilt Mechanism Having Multiple Pivots |
CH706683A2 (de) | 2012-06-27 | 2013-12-31 | Hasan Hueseyin Isik | Rollstuhl. |
DE102012021592B4 (de) | 2012-11-02 | 2014-12-18 | Thyl Junker | Rollstühle und Nachrüstsatz für einen Rollstuhl |
US9010787B2 (en) * | 2013-03-04 | 2015-04-21 | Ki Mobility | Tilt-in-space wheelchair using multiple controlling paths |
CN203693927U (zh) * | 2013-12-31 | 2014-07-09 | 钟臻辉 | 轮椅座椅 |
CH709358A1 (de) * | 2014-03-04 | 2015-09-15 | Levo Ag Wohlen | Aufrichtrollstuhl. |
JP2016106875A (ja) * | 2014-12-08 | 2016-06-20 | 有限会社中沢製作所 | 足踏み運動機構付の車椅子 |
US10624803B2 (en) * | 2017-12-01 | 2020-04-21 | IdeaShare Designs LLC | Tilting manual wheelchair |
-
2017
- 2017-04-12 DE DE102017107964.5A patent/DE102017107964A1/de not_active Withdrawn
-
2018
- 2018-04-04 US US16/604,233 patent/US11045368B2/en active Active
- 2018-04-04 JP JP2019566574A patent/JP6739826B2/ja not_active Expired - Fee Related
- 2018-04-04 CN CN201880038861.5A patent/CN111093587A/zh active Pending
- 2018-04-04 EP EP18717871.0A patent/EP3609451B8/de active Active
- 2018-04-04 WO PCT/EP2018/058559 patent/WO2018189003A1/de unknown
Also Published As
Publication number | Publication date |
---|---|
WO2018189003A1 (de) | 2018-10-18 |
US20200163816A1 (en) | 2020-05-28 |
EP3609451B1 (de) | 2021-06-09 |
DE102017107964A1 (de) | 2018-10-18 |
US11045368B2 (en) | 2021-06-29 |
JP6739826B2 (ja) | 2020-08-12 |
CN111093587A (zh) | 2020-05-01 |
EP3609451B8 (de) | 2021-07-14 |
JP2020516417A (ja) | 2020-06-11 |
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