EP2025316B1 - Siège - Google Patents

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Publication number
EP2025316B1
EP2025316B1 EP08405197A EP08405197A EP2025316B1 EP 2025316 B1 EP2025316 B1 EP 2025316B1 EP 08405197 A EP08405197 A EP 08405197A EP 08405197 A EP08405197 A EP 08405197A EP 2025316 B1 EP2025316 B1 EP 2025316B1
Authority
EP
European Patent Office
Prior art keywords
backrest
movement
seat
seat according
elements
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.)
Not-in-force
Application number
EP08405197A
Other languages
German (de)
English (en)
Other versions
EP2025316A1 (fr
Inventor
Roger Hochstrasser
Jürg Hefti
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hochstrasser Roger
Original Assignee
Hochstrasser Roger
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hochstrasser Roger filed Critical Hochstrasser Roger
Priority to EP08405197A priority Critical patent/EP2025316B1/fr
Publication of EP2025316A1 publication Critical patent/EP2025316A1/fr
Application granted granted Critical
Publication of EP2025316B1 publication Critical patent/EP2025316B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A61G5/10—Parts, details or accessories
    • A61G5/1043—Cushions specially adapted for wheelchairs
    • 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
    • A61G5/1043—Cushions specially adapted for wheelchairs
    • A61G5/1045—Cushions specially adapted for wheelchairs for 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
    • A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
    • A61G5/122—Rests specially adapted therefor, e.g. for the head or the feet for the back
    • 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
    • A61G2210/00—Devices for specific treatment or diagnosis
    • A61G2210/10—Devices for specific treatment or diagnosis for orthopedics
    • 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
    • A61G5/1056—Arrangements for adjusting the seat
    • A61G5/107—Arrangements for adjusting the seat positioning the whole seat forward or rearward
    • 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

  • the invention relates to a seat, in particular a wheelchair seat, according to the preamble of claim 1 and a wheelchair with such a seat.
  • Wheelchairs are known as mobile seating for people who are impaired in their ability to walk due to physical disability. Wheelchair users will be able to be mobile to a certain extent. However, expressions such as “being wheelchair-bound” make it clear that "mobility” in this context means the wheelchair as a functional means of locomotion without involving the body of the wheelchair user in the sense of a physiological movement.
  • US 5,659,910 is a wheelchair for paralyzed people-known, which is usable by a folding mechanism of the backrest as a couch.
  • the wheelchair has a plurality of impact elements that extend in the transverse direction of the seat portion and the backrest substantially over the entire contact surface with the wheelchair user.
  • the effect elements are set in a continuous upward or downward movement by a plurality of rollers.
  • the purpose of this arrangement is to avoid bedsores or wounds of the wheelchair user, with the effect elements merely activating the skin or the outer muscle layers of the person sitting in the wheelchair. For reasons explained above, however, a physiological movement of the wheelchair user with respect to his posture would be extremely desirable, in particular by active movement of the bone apparatus.
  • the invention has the object, a seat of the type mentioned for physiological To further develop movement of the bone apparatus of the seated person within their sitting position.
  • the seat has a contact surface that contacts the body of a seated person, e.g. on the backrest or on the seating area.
  • a plurality of effect elements according to the invention is operatively connected to the contact surface.
  • the contact surface may be formed directly by the surface of the effect elements.
  • an arbitrary type of intermediate layer may be present between the body of the person and the effect elements, so that the contact surface is formed by the surface of the intermediate layer. This may be, for example, a seat and / or backrest upholstery, to which a number of the effect elements are attached.
  • the seat further comprises a backrest having a pivoting mechanism through which sideways movement can be introduced, and a motor drive for sideways movement.
  • a suitable movement of the action elements is suggested by which the contact surface and thus the body of the person is moved.
  • An intermediate layer which is optionally arranged between the person and the effect elements, follows the movement of the effect elements and is preferably adapted to the anatomy of the person such that the body part embedded therein is carried along.
  • a second embodiment provides for the alteration of physical properties of the active elements, in particular the generation of vibrations, electrical stimulation currents, magnetic fields or temperature gradients in them, which are supplied to the body of the person as physiological stimuli.
  • wheelchair seat 1 has a substantially horizontal seating area 10, which is formed by checkerboard pattern-like juxtaposition of individual effect elements 11a-e, each with a square surface 12.
  • a total of thirty-six elements are provided, which are arranged within six transverse rows, each with six elements of action.
  • the illustrated variant of the seating area 10 thus formed further comprises in the middle of each transverse row of the action elements 11a-f, between the two in the middle arranged effect elements, a spacer 23.
  • the distance between the centrally arranged effect elements thus substantially corresponds to the spacing between the thighs of a seated wheelchair user.
  • Such an arrangement of ineffective effect elements 11a-f is avoided because this area does not come into contact with the body of the wheelchair user.
  • the space obtained by the spacer 23 is advantageously suitable for accommodating required operating elements for the action elements 11a-f, for example a drive and / or a transmission.
  • a backrest 30 comprises elongated, essentially strip-shaped, action elements 31a-g, 32, 33 which extend horizontally over the entire width of the backrest 30.
  • a total of seven identically formed effect elements 31a-g are provided, which are lined up in the longitudinal direction of the backrest 30.
  • a plate-shaped base member 32 At the lower end of the juxtaposition is a plate-shaped base member 32, while the upper end is formed by a rim member 33 with injury preventively rounded upper corners.
  • the base member 32 and the edge member 33 are also elements of action.
  • the surface of the action elements 31a-g, 32, 33 is arranged on the front side 38 of the backrest, whereby a further contact surface for the wheelchair user is formed, with whom he comes into contact with his sitting posture.
  • Adjacent active elements 31a-g are connected to each other and to the respective upper or lower end of the arrangement with the base element 32 and the edge element 33 by means of expandable connecting elements 34a, b. These are each on the left or right Edge region of the effect elements 31a-g side connecting elements 34a and 34b arranged. At its central region central connecting elements 34c are arranged, which are rigid, in order to ensure a constant distance in the central region and thus the stability of the backrest. For example, these may be hinged connecting elements 34c. In Fig.1 Only the connecting elements 34a-c mounted between the action elements 31f and 31g are provided with reference numerals for all connecting elements.
  • a first pivot axis 35 is provided, which is positioned in the central portion of the central action element 30d.
  • a pivot lever 36 has two pivot arms, which connect butt-staked to each other, approximately at an approximate 135 ° angle.
  • the pivot lever 36 has a joint behind the centrally arranged action element 31d at the position of the first pivot axis 35, which is further attached to a mounting plate 50 which extends substantially parallel to the backrest 30 and between the back 39 of Backrest 30 and the pivot lever 36 is arranged.
  • the right pivot arm of the pivot lever 36 extends obliquely upward along the back 39 of the backrest 30 and is connected at its outer end to the right side of the edge member 33 by means of a hinge 37b.
  • the left pivot arm of the pivot lever 36 is formed shorter and extends over approximately one quarter of the backrest width 30 in the horizontal direction. At its outer end, it is connected by a hinge 37a to one end of a turning bar 40, at its other end to a turntable 41 is hinged outside the center of rotation of the same.
  • the turntable 41 is driven by an adjacently disposed electric motor 42 and an associated gear.
  • the turntable 41 is rotatably attached to the backrest 30 about its central axis.
  • a guide and drive means 55 for initiating a continuous sideways movement for the backrest 30 is formed, which is alternately left and right directed about the first pivot axis 35, as in Fig. 1 is indicated by the corresponding arrows 43a and 43b and in the following description with reference to Fig. 3 is explained in more detail.
  • a stationary U-shaped trained bracket 46 surrounds the backrest 30 from its rear and is fixed at its two open ends on a base frame 47 adjustable.
  • a support element 54a, b is provided on both sides, in order to support the posture of a seated wheelchair user in the event of a lateral movement of the backrest or a lateral inclination thereof.
  • To achieve this function is also a bowl-shaped design of the wheelchair seat 1, in particular the backrest 30, conceivable.
  • the backrest 30 is located in the Fig. 1 shown position in a vertical upright position with respect to the seat portion 10, wherein this assumes the backrest at approximately a 90 ° angle.
  • a second pivot axis 44 is arranged opposite the front side 38 of the backrest 30. It runs in a horizontal direction in Width direction of the backrest 30. About the pivot axis 44 is an alternately upwardly or downwardly directed tilting movement in the backrest 30 can be introduced, as indicated by the double arrow 45.
  • the tilting movement 45 engages the stationary base frame 47.
  • the base frame 47 has a rectangular frame shape with two fastening tongues 48a, b, which extend obliquely upward on both sides of the base frame 47 in the direction of the front side 38 of the backrest 30 and the second pivot axis 44 through.
  • a tilting bracket 49 is rotatably mounted. On the tilt bracket 49 of the electric motor 42 is mounted.
  • the tilting bar 49 has a substantially U-shape, which is arranged parallel to the back 39 of the backrest 30, wherein the two ends continue perpendicular to the backrest 30 at the upper open side of the U-shape, approximately at the level of the retaining clip 46, to surround the backrest 30 to the respective pivot point on the second pivot axis 44 from the rear side.
  • the mounting plate 50 extending substantially parallel to the back 39 of the backrest 30 is mounted, which projects at the other end behind the central portion of the backrest 30 in the region of the first pivot axis 35.
  • the pivot lever 36 is rotatably mounted on the mounting plate 50 about the first pivot axis 35, while the mounting plate 50 is in direct contact with the back 39 of the backrest 30.
  • a further turntable 51 is provided, which is driven by the motor 42 and its gear.
  • Another deflecting rod directs the Rotary movement of the turntable 51 in a tilting movement of the mounting plate 50 with the backrest 30 attached thereto.
  • the sequence of the tilting movement of the backrest 30 is in the following description with reference to Fig. 4 explained in more detail.
  • the base frame 47 is intended for mounting on a wheelchair chassis.
  • the retaining clip 46 is articulated at the upper end of the fastening tongues 48a, b of the base frame 47 at the location of the second pivot axis 44 and thus arranged adjustably about the second pivot axis 44.
  • Such an individual adjustability of the backrest inclination is realized to the needs of the wheelchair user, as indicated by the double arrow 53.
  • a fixation of the desired backrest position with respect to the base frame 47 is effected by two on both sides between the base frame 47 and the bracket 46 fixed spring cylinder 52 a, b.
  • the Fig. 2 shows the novel wheelchair seat in a plan view, which is already mounted on a wheelchair 2.
  • the wheelchair 2 has a conventional chassis 3 with two rear wheels 4a, b and two front wheels 5a, b and two footrest surfaces 6a, b. It can be both a manual and a powered wheelchair.
  • a separate source of energy for movement of the wheelchair seat 1 is provided, while in the latter case can be made of the drive source of the wheelchair 2, in particular a 12-volt battery.
  • further drives 42 for continuous movement of the action elements 11a-f of the wheelchair seat 1 can be supplied with energy.
  • the Fig. 3 shows the in Fig. 2 Wheelchair 2 shown from above in a rear view.
  • the figure is bisected by a vertical dividing line T along the middle, wherein on the left side of the dividing line T is shown a first position S1 of the continuous lateral movement of the backrest 30 by continuous contour lines of the moving elements and on the right side of the dividing line T a second position S2 of the continuous movement is illustrated by continuous contour lines of the respective elements.
  • the relevant elements are shown in the position S1 on the left side of the dividing line T and in the position S2 on the right side of the dividing line T by means of dashed contour lines.
  • the base element 32, the action elements 31a-g and the edge element 33 extend parallel to one another in the horizontal direction.
  • the elements 31a-g, 32 and 33 each have a constant spacing and the elastic connecting elements 34a and 34b arranged between them are in a relaxed state.
  • the pivot lever 36 In the position S2, the pivot lever 36 is in a position S1 in a clockwise direction about the first pivot axis 35 pivoted position. In this case, the attached to the upper edge member 33 right pivot arm of the pivot lever 36 is moved downward, while the left arm performs an upward movement. In addition to a generally rightward movement of the backrest 30 thereby follows a reduction in the spacing between the individual elements 31a-g, 32 and 33 on the right side, while the left-side distance increases. This leads to a compression of the right side arranged connecting elements 37b and to an extension of the left side arranged connecting elements 34a.
  • Such a concertina-like relative movement between the action elements 31a-g and the edge element 33 is essentially modeled on a sideways movement (lateral flexion) of the spine of a wheelchair user sitting in the wheelchair seat 1, whereby a one-sided compression or a different-sided stretching of the intervertebral disk takes place between the individual vertebrae. Via the contact surface 38, the sideways movement of the backrest 30 is transferable to the wheelchair user.
  • the Fig. 4 shows the wheelchair 2 with the wheelchair seat 1 in a side view, with a forward or Rearward tilting movement of the backrest 30 is shown schematically with reference to three tilted positions K1, K2 and K3.
  • the position K1 corresponds to a vertical upright position of the backrest 30, as in Fig. 1 is shown and in which the backrest 30 is arranged in the normal direction to the seat surface 10.
  • the backrest 30 in the Fig. 4 represented by solid lines.
  • a forward or backward tilted position K2 or K3 of the backrest 30 is shown in this regard, wherein the backrest 30 is shown only schematically by dashed contour lines.
  • the movement of the backrest 30 at the same time about the first and second pivot axis 35 and 44 corresponds to a superposition of in Fig. 3 shown sideways movement with an associated lateral curvature of the backrest 30, which is caused by the accordion-like relative movement of individual action elements 31a-g and the edge element 33, and in Fig. 4 shown alternately forward or backward tilting movement.
  • a three-dimensional continuous backrest movement is realized for the physiological movement of the back of a wheelchair user, which is adapted to the anatomy of the back movement, in particular the continuous spinal curvature in a lateral movement (lateral flexion) of the spine.
  • the continuous movement of the backrest is substantially matched to the anatomical requirements of the spine of the seated wheelchair user, wherein, for example, the position of the pivot axes 35, 44 can be adaptable to the body size of the wheelchair user.
  • the position of the first pivot axis 35 is modeled on the backrest movement of the lateral flexion of the spine, the position of the second pivot axis 44 corresponds to the anatomical pivot point of the back in a forward and backward bending thereof.
  • the relative arrangement of the action elements 31a-f, 33 with respect to the back of the wheelchair user in particular the position of the lowest action element 31a, adapted to the anatomical pivot point of the spine.
  • the selected number and size of the effect elements 31a-f, 33 may vary with respect to different anatomical requirements of the wheelchair user and for individually divergent health-promoting measures.
  • the Fig. 5 shows a side cross-sectional view of the seat portion 10 of the in the Fig. 2-4 illustrated wheelchair seat 1 of the wheelchair 2, in which the effect elements 11 a-f are shown in a position of a continuous rocking motion, ie one alternately upwards or downwards directed relative movement between the individual action elements 11a-f.
  • a longitudinal axis is arranged below each of the longitudinal rows with the action elements 11a-f, wherein the six longitudinal axes 14 extend parallel to one another and are rotatably mounted.
  • Each of the action elements 11a-f of each longitudinal row of action elements is connected to one of the six longitudinal axes 14 by an associated eccentric disk 15a-f.
  • each eccentric disk 15a-f corresponds to the respective crossing point of the longitudinal axis 14. This runs in each case outside the center of each of the eccentric discs 15a-f.
  • the center points of the eccentric discs 15a-f of respectively adjacent active elements 11a-f are arranged offset with respect to their circumferential position along the longitudinal axis 14. As a result, it is achieved that respective adjacent impact elements 11a-f are arranged in a different height position. This results in an uneven surface of the seating area 10.
  • a continuous upward or downward movement in the action elements 11a-f is initiated.
  • adjacent impact elements 11a-f pass through the respectively same height position at respectively different times, corresponding to the different position of the center of their associated eccentric disk 15a-f along the circumference of the longitudinal axis 14.
  • a dynamically changing surface 13 of the seat portion 10 is realized acts on the buttocks and thigh area of a seated wheelchair user.
  • adjacent longitudinal axes 14 are connected by means of intermeshing gears, whereby the rotational movement of a longitudinal axis 14 is transferable to the respective neighboring.
  • At least one of the longitudinal axes 14 is connected to a drive 21, which may be, for example, an electric motor, which can be fed via the power supply of the wheelchair 2, in particular a 12-volt battery.
  • a drive 21 which may be, for example, an electric motor, which can be fed via the power supply of the wheelchair 2, in particular a 12-volt battery.
  • Fig. 6 and Fig. 7 each show a detailed view of an effective element 11c of the seat portion 10 of the wheelchair seat 1, by way of example for allensesalemente 11a-f, based on which an embodiment for initiating a continuous upward or downward movement of the action element 11e is shown on the rotating longitudinal axis 14.
  • a base part 18 On the underside of the effect element 11e, a base part 18 is fixed, which has a recess 16 in the central region of its surface, whereby a cavity is formed.
  • the screw head of a screw 17 a, b which is in each case screwed endwise into a hook-shaped extension 19, which is arranged on the underside of the base part 18.
  • the longitudinal axis 14 on which the eccentric disk 15 e is fastened outside its center 22.
  • the eccentric disk 15e is solid and has a circumferential bead 20, by means of which a depression in the central region on the surface of the eccentric disk 15e is delimited, in which the hook-shaped extension 19 engages. At its outer periphery, the eccentric disk 15e comes into contact with the underside of the base part 18.
  • the Fig. 8 shows a side cross-sectional view of the seat portion 10 of the wheelchair seat 1 in an alternative embodiment.
  • a longitudinal bar 26 is arranged below a longitudinal row of action elements 11a-f, which is displaceable by a suitable drive in an alternately forward and backward movement, as indicated by the double arrow 27.
  • Guide bars 28a-f are mounted along the longitudinal bar, each of the guide blocks 28a-f being associated with an operative element 11a-f.
  • the guide blocks 28a-f have an overall oblique surface, ie with a gradient gradient.
  • a pressure pin 29a-f is fixed, which rests at its lower end on the curved surface of the respective associated guide block 28a-f.
  • FIGS. 9 and 10 each show a detailed view of an action element 11c, by way of example for all the action elements 11a-f, with an associated guide block 28c.
  • a screw connection 17c is provided for fastening the pressure pin 29c to the action element 11c.
  • the pressure pin 29c has on its underside a roller 9 which is movable along the upwardly curved surface of the guide block 28c. In a forward movement of the longitudinal bar 26 and the attached guide blocks 28a-f, the pressure pins 29a-f and thus the effect elements 11a-f are pushed upwards.
  • Various possible mounting positions of the guide block 28c are in the FIGS. 9 and 10 shown by dashed lines, thereby allowing the initiation of the lifting / lowering movement in the pressure pins 29a-f and the guide blocks 28a-f takes place earlier or later in time.
  • a tensioning element in the form of a spring 24 is arranged on the guide pin 29c, through which a downward directed against the surface of the guide block 28c force is exerted on the pressure pin 29c.
  • the action elements 11a-f are strung together along the contact surface 13 and that they each have a lifting and lowering mechanism which is directed in the normal direction of the contact surface 13 and through which in each case a rocking motion can be introduced.
  • the effect elements 11a-f are substantially square in shape and arranged in a checkerboard pattern. In this case, a particularly effective transmission of the physiological movement can be achieved in that different impact elements 11a-f have different height positions during the movement.
  • the effect elements 11a-f are arranged at least partially on the seating area 10.
  • each of the transverse rows can be formed by only a single elongated active element. This can for example be designed to carry out a rectified or oppositely directed upward or downward movement on both sides.
  • arbitrarily shaped elements are also arranged like a segment next to each other.
  • the backrest 30 may have such effect elements.
  • the effect elements can also be operated hydraulically and / or pneumatically.
  • each of the action elements may be formed by an alternately inflatable and emptying air chamber.
  • an intermediate layer such as a seat padding or the like, between the action elements 11a-f, 31a-g, 32, 33 ergonomically to the body part of the wheelchair user to be moved.
  • the intermediate layer can be adapted to each differing anatomical conditions, for example, to different body sizes of the wheelchair user, and each individually to the above-described basic construction of the wheelchair seat with the action elements 11a-f, 31a-g, 32, 33 are mounted.
  • the described basic construction can essentially be maintained or requires only a slight adaptation.
  • a motor drive in particular in the form of an electric motor, which is betreibar example, the power supply of a wheelchair, a hydraulic and / or pneumatic drive for moving individual movement elements conceivable.
  • the physiological movement in the general case comprises, at least in part, a movement of the skeleton of the wheelchair user, while to another part other anatomical components may be involved in the movement, in particular skin or muscles.
  • continuous motion means a repetitive, i. repetitive pattern of movement over a longer time interval. The same trajectories can be traversed several times. However, this is not necessarily the case when, for example, several movement patterns are superimposed.
  • a movement may be three-dimensionally along the surface of an ellipsoid, wherein one or more hubs may be provided for initiating the movement.
  • a relatively slow continuous movement is provided, i. in the range of the speed of human motor movement or slower.
  • the transmission of physiological stimuli to the wheelchair user is also conceivable.
  • it may be vibrational movements of individual action elements, which are preferably realized in a higher repetition frequency, ie at a greater speed in their relative movement.
  • the transmission of magnetic fields, of electrical stimulation currents and / or of temperature gradients for supplying heat or cold from the effect elements to the body of the wheelchair user can also be provided.
  • a seat according to the invention can be used as a cinema, concert, office or massage seat, as well as a seat for passenger transport within the framework of automotive, vehicle and aviation technology.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Rehabilitation Tools (AREA)
  • Chairs Characterized By Structure (AREA)

Claims (14)

  1. Siège, plus particulièrement siège de fauteuil roulant, comprenant une surface de contact (13, 38) qui entre en contact avec une personne assise, plus particulièrement sur un dossier (30), et une pluralité d'éléments actifs (11a-f, 31a-g, 32, 33) qui sont fonctionnellement reliés à la surface de contact (13, 38) et sont ainsi adaptés à transmettre des séquences de mouvements et/ou des stimulus physiologiques au corps de la personne assise, caractérisé par un dossier (30) muni d'un mécanisme de pivotement (35, 36) par lequel un mouvement latéral peut être initié, et par un entraînement motorisé (42) du mouvement latéral.
  2. Siège selon la revendication 1, caractérisé par des éléments actifs (11a-f, 31a-g, 32, 33) mobiles les uns par rapport aux autres, et un dispositif de guidage et d'entraînement (25, 55) des éléments actifs (11a-f, 31a-g, 32, 33) permettant d'initier un mouvement des éléments actifs afin de réaliser ainsi un mouvement physiologiquement efficace de la personne en fauteuil roulant.
  3. Siège selon la revendication 1 ou 2, caractérisé en ce que pendant l'initiation du mouvement latéral, le dossier (30) est agencé de manière flexible de sorte à être continuellement adaptable à la flexion latérale de la colonne vertébrale de la personne assise.
  4. Siège selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les éléments actifs (31a-g, 32, 33) du dossier (30) présentent une forme allongée et sont chaque fois alignés dans la direction de leur étendue horizontale, les éléments actifs (31a-g, 32, 33) étant accouplés l'un à l'autre en direction verticale par des éléments de liaison (34a-c) élastiques.
  5. Siège selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le mécanisme de pivotement comprend un premier axe de pivotement (35) agencé dans la zone centrale du dossier (30) et un levier pivotant (36) monté à l'arrière du dossier (30), le levier pivotant (36) étant articulé sur au moins un élément actif (31a-g, 32, 33) du dossier (30).
  6. Siège selon la revendication 5, caractérisé en ce que le premier axe de pivotement (35) est positionné de telle manière qu'un mouvement de pivotement du dossier (30) est essentiellement adapté à une flexion latérale prévue de la colonne vertébrale de la personne assise.
  7. Siège selon l'une quelconque des revendications 1 à 6, caractérisé par un dossier (30) présentant à l'avant de son côté frontal (38) un deuxième axe de pivotement (44) qui permet d'initier un mouvement basculant lequel est alternativement dirigé vers l'avant et vers l'arrière.
  8. Siège selon la revendication 8, caractérisé en ce que le deuxième axe de pivotement est essentiellement adapté au point de pivotement anatomique lors d'une flexion vers l'avant ou vers l'arrière de la colonne vertébrale de la personne assise.
  9. Siège selon l'une quelconque des revendications 1 à 8, caractérisé par un disque rotatif (15a-f, 41, 51), plus particulièrement un disque excentrique (15a-f), pour initier un mouvement continu.
  10. Siège selon l'une quelconque des revendications 2 à 9, caractérisé par au moins un entraînement motorisé (21) du mouvement.
  11. Siège selon l'une quelconque des revendications 1 à 10, caractérisé en ce que les stimulus transmis à la personne assise par les éléments actifs (11a-f, 31a-g, 32, 33) sont des mouvements vibratoires, des champs magnétiques, des courants électriques stimulants et/ou des gradients de température.
  12. Siège selon l'une quelconque des revendications 1 à 11, caractérisé en ce que les éléments actifs (11a-f, 31a-g, 32, 33) présentent chaque fois une surface incurvée qui est adaptée à l'anatomie de la personne assise.
  13. Siège selon l'une quelconque des revendications 1 à 12, caractérisé en ce que sur l'un ou sur plusieurs élément(s) actif(s) (11a-f, 31a-g, 32, 33) est pourvue une couche intermédiaire, plus particulièrement un rembourrage du siège et/ou du dossier, laquelle est disposée entre les éléments actifs respectifs (11a-f, 31a-g, 32, 33) et la personne assise, la surface de contact (13, 38) étant formée par la surface de la couche intermédiaire.
  14. Fauteuil roulant (2), caractérisé par un siège (1) selon l'une quelconque des revendications 1 à 13.
EP08405197A 2007-08-14 2008-08-13 Siège Not-in-force EP2025316B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08405197A EP2025316B1 (fr) 2007-08-14 2008-08-13 Siège

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP07405237 2007-08-14
EP08405197A EP2025316B1 (fr) 2007-08-14 2008-08-13 Siège

Publications (2)

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EP2025316A1 EP2025316A1 (fr) 2009-02-18
EP2025316B1 true EP2025316B1 (fr) 2010-11-03

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EP (1) EP2025316B1 (fr)
AT (1) ATE486556T1 (fr)
DE (1) DE502008001690D1 (fr)
DK (1) DK2025316T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITNA20090018A1 (it) * 2009-04-17 2010-10-18 Antonio Lanzotti Seduta regolabile per carrozzine destinate a soggetti diversamente abili
CN112957189B (zh) * 2021-02-01 2022-03-08 吉林大学 一种带有臀部按摩机构的康复轮椅

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5659910A (en) * 1995-08-04 1997-08-26 Weiss; Norman Wheelchair and bed with movable body supporting portions
US5662384A (en) * 1995-11-14 1997-09-02 Peter W. Linley Dynamic seating support system
DE19632611A1 (de) * 1996-08-13 1998-02-19 Beda Krieter Antidekubitusbett zur Prophylaxe des Druckgeschwürs (Dekubitus)
DE19930103C1 (de) * 1999-07-01 2001-02-15 Reha Technik Moeller Gmbh Dynamische Sitzschale
IT1317909B1 (it) * 2000-09-18 2003-07-15 Itop S R L Schienale ortopedico articolato dinamico.
US6557937B1 (en) * 2001-04-09 2003-05-06 The Research Foundation Of State University Of New York Pressure-relieving wheelchair seating apparatus
DE10300946B3 (de) * 2003-01-13 2004-08-26 Meyra Wilhelm Meyer Gmbh & Co Kg Elektro-Rollstuhl

Also Published As

Publication number Publication date
EP2025316A1 (fr) 2009-02-18
ATE486556T1 (de) 2010-11-15
DE502008001690D1 (de) 2010-12-16
DK2025316T3 (da) 2011-02-21

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