EP0442999B1 - Seat top - Google Patents

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Publication number
EP0442999B1
EP0442999B1 EP90913114A EP90913114A EP0442999B1 EP 0442999 B1 EP0442999 B1 EP 0442999B1 EP 90913114 A EP90913114 A EP 90913114A EP 90913114 A EP90913114 A EP 90913114A EP 0442999 B1 EP0442999 B1 EP 0442999B1
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EP
European Patent Office
Prior art keywords
ridges
bottom part
seat top
projections
front face
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.)
Expired - Lifetime
Application number
EP90913114A
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German (de)
French (fr)
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EP0442999A1 (en
Inventor
Kurt Kienlein
Peter Forster
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Individual
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Individual
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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/14—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays
    • A47C27/142—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays with projections, depressions or cavities
    • A47C27/146—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays with projections, depressions or cavities on the outside surface of the mattress or cushion
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/14—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays
    • A47C27/142—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays with projections, depressions or cavities
    • A47C27/144—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays with projections, depressions or cavities inside the mattress or cushion
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/14—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays
    • A47C27/148—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays of different resilience
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S297/00—Chairs and seats
    • Y10S297/02—Molded

Definitions

  • the invention relates to a seat cover, formed in one piece from a permanently elastic material, with a base part and a front side and an opposite rear side.
  • This seat cover can be a separate part that is placed on a seat. However, this seat cover can also be integrated into a seat and then represents the upper layer of this seat and is arranged directly under the seat. Of course, this seat cover can be covered with a cover, etc.
  • a mattress or a pad which consists of several layers of flexible material.
  • the upper bearing is formed by a plurality of flexible ribs which project upwards from the mattress body and are arranged essentially parallel to one another.
  • the flexible ribs have flanks at their upper ends. From a trapezoidal central rib, flexible ribs and flank heads each slope towards the head or foot end of the mattress. Spaces are arranged between the individual ribs, the lateral ends of the mattress being closed off by a final bearing that is completely formed in one piece and covers all bearing layers. This final bearing serves as the last flexible rib and its flank as an attachment.
  • Such known seat covers generally serve to create a softer seat. This inevitably leads to the fact that ventilation, caused by loading and unloading processes, does not take place or only takes place to an insufficient extent, which then leads to sweating with the usual, highly undesirable phenomena. This could be remedied by making such seat cushions thicker, which in turn has the disadvantage of being unwieldy or resulting in an undesired seat height, which results in a lack of stability. In addition, the tendency to slide down, especially towards the front, is becoming increasingly apparent.
  • the invention has for its object to provide a seat cover that ensures a better and more comfortable sitting position and provides a practically fatigue-free sitting position. Furthermore, it is the object of the present invention to create a seat cover, the surface of which is adequately ventilated and ventilated in the event of load fluctuations.
  • the seat cover according to the invention shown in FIG. 1 is formed in one piece from a permanently elastic material with a specific weight of 40 to 100 kg / m3.
  • the seat cover is shown in the unloaded state and has a base part 1 with an approximately rectangular base. From FIG. 2 in particular it can be seen that five webs 2, 3, 4, 5, 6 projecting transversely to the direction of seat protrude upward from the base part.
  • the webs 2, 3 are arranged in the front area, the web 4 in the middle area and the webs 5, 6 in the rear area. These webs are arranged approximately parallel to one another and leave web spaces 12 between them.
  • the left side of the seat pad shown in the figures represents the front, while the right side represents the back.
  • the expression “seat direction” thus denotes the direction from the rear towards the front.
  • the webs 2, 3 are inclined towards the front and have laterally at their free ends projections 7, 8 which extend approximately horizontally towards the front.
  • the webs 4, 5, 6 are inclined towards the rear and also have projections 9, 10, 11 laterally at their free ends, which extend approximately horizontally, but in the direction of the rear. These projections partially cover the web spaces 12 and, together with the upper free ends, form a seat surface 13, as can be seen from FIG. 1.
  • the web 2 is laterally equipped at its upper free end with a tab-like extension 14 which is turned over to the bottom part 1 so that it is flush with the underside of the bottom part 1.
  • a tab-like extension 14 On the inside of this tab-like extension 14, a plurality of transverse support webs 15 are provided, which extend into the cavity formed by the folding.
  • the webs 2, 3, 4, 5, 6 deform in each case in the direction of inclination, the webs 2, 3 a force acting forward and the webs 4, 5, 6 a force directed backwards (towards the backrest) cause. This results in a force resultant which is directed backwards and opposes the user sliding downwards.
  • the oppositely directed pair of forces there is a certain tension in the garment of the user resting on the seat 13, which prevents creasing.
  • the projections 7, 8, 9, 10, 11, which partially cover the web spaces 12, together with the upper free ends of the webs provide a pleasant suspension and allow maximum ventilation when the load changes, i.e. ventilation of the seat cover and thus in particular of the seat surface 13 generated by loading and unloading, as a result of which the clothing lying on it, caused by the user sweating, is largely prevented.
  • the seat 13 slopes slightly backwards. In other words, the vertical height of the webs 3, 4, 5, 6 decreases slightly towards the rear end. This results in a better and more comfortable sitting position than can be achieved with known seat covers with a much greater backward slope.
  • ergonomic parts are formed which in turn also contribute to a better and practically fatigue-free sitting position.
  • a spacer bead 16 is arranged on the rear of the seat cover and runs parallel to the web 6, which prevents the web 6 from contacting one Hits the backrest and loses its effectiveness because it cannot deform backwards to the desired extent.
  • the webs 2, 3, 4, 5, 6 are provided with a groove-like depression 17 on their surface forming the seat surface 13, these depressions 17 running parallel to one another.
  • the front area with webs 2, 3 inclined towards the front preferably makes up 1/5 to 2/5 of the entire seating area.
  • the number of webs is of course variable and is not limited to the number specified in the exemplary embodiment.

Landscapes

  • Seats For Vehicles (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Sheet Holders (AREA)
  • Special Chairs (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
  • Toilet Supplies (AREA)
  • Switches With Compound Operations (AREA)
  • Table Devices Or Equipment (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)

Abstract

PCT No. PCT/EP90/01513 Sec. 371 Date Jun. 24, 1991 Sec. 102(e) Date Jun. 24, 1991 PCT Filed Sep. 7, 1990 PCT Pub. No. WO91/03193 PCT Pub. Date Mar. 21, 1991.The upper seat part according to the instant invention is provided with several ridges 2, 3, 4, 5, 6 extending from its bottom part 1 upward, said ridges being approximately parallel to each other as well as transversal to the seating direction, whereby the forward ridges 2, 3 are inclined toward the front while the other ridges 4, 5, 6 are inclined toward the back. The ridges 2, 3 are equipped laterally, at their upper free ends with projections 7,8 extending approximately at a parallel to the bottom part 1 toward the back side while the ridges 4, 5, 6 inclined toward the back are provided with projections 9, 10, 11 laterally at their upper free ends, said projections extending also approximately at a parallel to the bottom plate 1, however toward the front, so that the projections 7, 8, 9, 10, 11 partly cover the ridge intervals 12 and constitute a seating surface 13 together with the upper free ends of the ridges 1, 3, 4, 5, 6.

Description

Die Erfindung betrifft eine Sitzauflage, einstückig geformt aus einem dauerelastischen Werkstoff, mit einem Bodenteil und einer Vorderseite sowie einer gegenüberliegenden Rückseite.The invention relates to a seat cover, formed in one piece from a permanently elastic material, with a base part and a front side and an opposite rear side.

Diese Sitzauflage kann ein separates Teil sein, das auf einen Sitz aufgelegt wird. Diese Sitzauflage kann aber auch in einen Sitz integriert sein bzw. werden und stellt dann die obere Lage dieses Sitzes dar und ist direkt unter der Sitzfläche angeordnet. Natürlich kann diese Sitzauflage mit einem Bezug etc. überzogen sein.This seat cover can be a separate part that is placed on a seat. However, this seat cover can also be integrated into a seat and then represents the upper layer of this seat and is arranged directly under the seat. Of course, this seat cover can be covered with a cover, etc.

Aus der britischen Patentanmeldung GB-A-2 197 785 ist eine Matratze bzw. eine Auflage bekannt, die aus mehreren Lagen flexiblen Materials besteht. Das obere Lager wird dabei durch eine Vielzahl von flexiblen Rippen gebildet, die vom Matratzenkörper nach oben ragen und im wesentlichen parallel zueinander angeordnet sind. Die flexiblen Rippen weisen an ihren oberen Enden Flanken auf. Von einer trapezförmigen Mittelrippe aus neigen sich flexible Rippen und Flankenköpfe jeweils zum Kopf bzw. Fußende der Matratze. Zwischen den einzelnen Rippen sind Zwischenräume angeordnet, wobei die seitlichen Enden der Matratze durch ein einstückig vollständig ausgeformtes alle Lagerschichten überdeckendes Abschlußlager abgeschlossen wird. Dieses Abschlußlager dient der letzten flexiblen Rippe sowie deren Flanke bei Belastung als Anlage.From British patent application GB-A-2 197 785 a mattress or a pad is known which consists of several layers of flexible material. The upper bearing is formed by a plurality of flexible ribs which project upwards from the mattress body and are arranged essentially parallel to one another. The flexible ribs have flanks at their upper ends. From a trapezoidal central rib, flexible ribs and flank heads each slope towards the head or foot end of the mattress. Spaces are arranged between the individual ribs, the lateral ends of the mattress being closed off by a final bearing that is completely formed in one piece and covers all bearing layers. This final bearing serves as the last flexible rib and its flank as an attachment.

Derartige bekannte Sitzauflagen dienen im allgemeinen dazu, eine weichere Sitzmöglichkeit zu schaffen. Dies führt zwangsläufig dazu, daß eine Ventilation, hervorgerufen durch Be- und Entlastungsvorgänge, nicht bzw. nur in ungenügendem Maße stattfindet, was dann ein Schwitzen mit den üblichen, höchst unerwünschten Erscheinungen mit sich bringt. Man könnte diesem Übelstand zwar dadurch abhelfen, daß man solche Sitzauflagen dicker gestaltet, was aber wiederum den Nachteil aufweist, unhandlich zu sein bzw. eine ungewollte Sitzhöhe zu ergeben, woraus eine mangelnde Stabilität resultiert. Außerdem tritt hier die Tendenz des Herunterrutschens, vor allem nach vorne, verstärkt in Erscheinung.Such known seat covers generally serve to create a softer seat. This inevitably leads to the fact that ventilation, caused by loading and unloading processes, does not take place or only takes place to an insufficient extent, which then leads to sweating with the usual, highly undesirable phenomena. This could be remedied by making such seat cushions thicker, which in turn has the disadvantage of being unwieldy or resulting in an undesired seat height, which results in a lack of stability. In addition, the tendency to slide down, especially towards the front, is becoming increasingly apparent.

Der Erfindung liegt die Aufgabe zugrunde, eine Sitzauflage zu schaffen, die eine bessere und bequemere Sitzstellung gewährleistet und eine praktisch ermüdungsfreie Sitzposition vermittelt. Des weiteren ist es die Aufgabe der vorliegenden Erfindung, eine Sitzauflage zu schaffen, deren Oberfläche bei Belastungsschwankungen ausreichend ventiliert, belüftet wird.The invention has for its object to provide a seat cover that ensures a better and more comfortable sitting position and provides a practically fatigue-free sitting position. Furthermore, it is the object of the present invention to create a seat cover, the surface of which is adequately ventilated and ventilated in the event of load fluctuations.

Diese Aufgabe wird durch eine Sitzauflage gemäß der Lehre des Anspruchs 1 gelöst. Vorteilhafte Ausführungsformen sind in den Unteransprüchen 2 bis 6 beschrieben.This object is achieved by a seat cover according to the teaching of claim 1. Advantageous embodiments are described in subclaims 2 to 6.

Nachstehend ist eine bevorzugte Ausführungsform der erfindungsgemäßen Sitzauflage unter Bezug auf die schematischen Zeichnungen näher beschrieben; es zeigen:

Fig. 1
eine perspektivische Ansicht der erfindungsgemäßen Sitzauflage;
Fig. 2
eine Seitenansicht derselben.
A preferred embodiment of the seat cover according to the invention is described in more detail below with reference to the schematic drawings; show it:
Fig. 1
a perspective view of the seat cover according to the invention;
Fig. 2
a side view of the same.

Die in der Fig. 1 gezeigte erfindungsgemäße Sitzauflage ist einstückig aus einem dauerelastischen Werkstoff mit einem spezifischen Gewicht von 40 bis 100 kg/m³ geformt. Die Sitzauflage ist im unbelasteten Zustand dargestellt und weist ein Bodenteil 1 mit in etwa rechteckiger Grundfläche auf. Insbesondere aus der Fig. 2 ist ersichtlich, daß aus dem Bodenteil fünf quer zur Sitzrichtung verlaufende Stege 2,3,4,5,6 nach oben herausragen. Die Stege 2,3 sind dabei im vorderen Bereich, der Steg 4 im mittleren Bereich und die Stege 5,6 im hinteren Bereich angeordnet. Diese Stege sind in etwa parallel zueinander angeordnet und lassen zwischen sich Stegzwischenräume 12 frei. Die linke Seite der in den Figuren gezeigten Sitzauflage stellt die Vorderseite dar, während die rechte Seite die Rückseite darstellt. Mit dem Ausdruck "Sitzrichtung" wird somit die Richtung von der Rückseite in Richtung auf die Vorderseite bezeichnet. Die Stege 2,3 sind zur Vorderseite hin geneigt und besitzen seitlich an ihren freien Enden Vorsprünge 7,8, die sich in etwa horizontal zur Vorderseite hin erstrecken. Die Stege 4,5,6 sind zur Rückseite hin geneigt und besitzen ebenfalls seitlich an ihren freien Enden Vorsprünge 9,10,11, die sich in etwa horizontal erstrecken, jedoch in Richtung auf die Rückseite. Diese Vorsprünge überdecken teilweise die Stegzwischenräume 12 und bilden zusammen mit den oberen freien Enden eine Sitzfläche 13, wie dies aus der Fig. 1 zu ersehen ist.The seat cover according to the invention shown in FIG. 1 is formed in one piece from a permanently elastic material with a specific weight of 40 to 100 kg / m³. The seat cover is shown in the unloaded state and has a base part 1 with an approximately rectangular base. From FIG. 2 in particular it can be seen that five webs 2, 3, 4, 5, 6 projecting transversely to the direction of seat protrude upward from the base part. The webs 2, 3 are arranged in the front area, the web 4 in the middle area and the webs 5, 6 in the rear area. These webs are arranged approximately parallel to one another and leave web spaces 12 between them. The left side of the seat pad shown in the figures represents the front, while the right side represents the back. The expression “seat direction” thus denotes the direction from the rear towards the front. The webs 2, 3 are inclined towards the front and have laterally at their free ends projections 7, 8 which extend approximately horizontally towards the front. The webs 4, 5, 6 are inclined towards the rear and also have projections 9, 10, 11 laterally at their free ends, which extend approximately horizontally, but in the direction of the rear. These projections partially cover the web spaces 12 and, together with the upper free ends, form a seat surface 13, as can be seen from FIG. 1.

Der Steg 2 ist seitlich an seinem oberen freien Ende mit einem lappenartigen Fortsatz 14 ausgestattet, der bis zum Bodenteil 1 umgeschlagen ist, so daß er mit der Unterseite des Bodenteils 1 bündig abschließt. An der Innenseite dieses lappenartigen Fortsatzes 14 sind mehrere quer verlaufende Stützstege 15 vorgesehen, die sich in den durch das Umschlagen gebildeten Hohlraum erstrecken.The web 2 is laterally equipped at its upper free end with a tab-like extension 14 which is turned over to the bottom part 1 so that it is flush with the underside of the bottom part 1. On the inside of this tab-like extension 14, a plurality of transverse support webs 15 are provided, which extend into the cavity formed by the folding.

Beim Benutzen der Sitzauflage verformen sich die Stege 2,3,4,5,6 jeweils in Neigungsrichtung, wobei die Stege 2,3 eine nach vorne wirkende Kraft und die Stege 4,5,6 eine nach rückwärts (zur Rückenlehne hin) gerichtete Kraft hervorrufen. Daraus ergibt sich eine Kraft-Resultierende, die nach hinten gerichtet ist und sich einem Herunterrutschen des Benutzers nach vorne widersetzt. Außerdem erfolgt gleichzeitig durch das einander entgegengesetzt gerichtete Kräftepaar eine gewisse Spannung des auf der Sitzfläche 13 ruhenden Kleidungsstücks des Benutzers, was eine Faltenbildung verhindert.When the seat cover is used, the webs 2, 3, 4, 5, 6 deform in each case in the direction of inclination, the webs 2, 3 a force acting forward and the webs 4, 5, 6 a force directed backwards (towards the backrest) cause. This results in a force resultant which is directed backwards and opposes the user sliding downwards. In addition, due to the oppositely directed pair of forces, there is a certain tension in the garment of the user resting on the seat 13, which prevents creasing.

Die Vorsprünge 7,8,9,10,11, welche die Stegzwischenräume 12 teilweise überdecken, ergeben zusammen mit den oberen freien Enden der Stege eine angenehme Federung und erlauben bei Lastwechsel eine maximale Ventilation, d.h. eine durch Be- und Entlasten erzeugte Belüftung der Sitzauflage und damit auch insbesondere der Sitzfläche 13, wodurch ein Feuchtwerden der aufliegenden Kleidung, hervorgerufen durch ein Schwitzen des Benutzers, weitgehend verhindert wird.The projections 7, 8, 9, 10, 11, which partially cover the web spaces 12, together with the upper free ends of the webs provide a pleasant suspension and allow maximum ventilation when the load changes, i.e. ventilation of the seat cover and thus in particular of the seat surface 13 generated by loading and unloading, as a result of which the clothing lying on it, caused by the user sweating, is largely prevented.

Es sei noch erwähnt, daß die Sitzfläche 13 leicht nach hinten abfällt. Mit anderen Worten, die vertikale Höhe der Stege 3,4,5,6 nimmt zum rückwärtigen Ende leicht ab. Dies ergibt eine bessere und bequemere Sitzstellung, als sie durch bekannte Sitzauflagen mit einer weitaus stärkeren Rückwärtsschrägung zu erzielen ist. Durch das Umschlagen des der Vorderseite zugewandten lappenartigen Fortsatzes 14 einerseits und des querverlaufenden Stützstegs 15 andererseits sind ergonomische Teile gebildet, welche ihrerseits gleichfalls zu einer besseren und praktisch ermüdungsfreien Sitzposition beitragen.It should also be mentioned that the seat 13 slopes slightly backwards. In other words, the vertical height of the webs 3, 4, 5, 6 decreases slightly towards the rear end. This results in a better and more comfortable sitting position than can be achieved with known seat covers with a much greater backward slope. By turning over the flap-like extension 14 facing the front side and the transverse support web 15 on the other hand, ergonomic parts are formed which in turn also contribute to a better and practically fatigue-free sitting position.

Um auch den Steg 6 voll wirksam werden zu lassen, ist ein an der Rückseite der Sitzauflage parallel zum Steg 6 verlaufender Distanzwulst 16 angebracht, der verhindert, daß der Steg 6 an einer Rückenlehne anstößt und dadurch an Wirksamkeit verliert, weil er sich nicht in dem gewünschten Maße nach hinten verformen kann. Zur Unterstützung der Federungseigenschaften und der Ventilation sind die Stege 2,3,4,5,6 auf ihrer die Sitzfläche 13 bildenden Oberfläche mit einer nutartigen Vertiefung 17 versehen, wobei diese Vertiefungen 17 parallel zueinander verlaufen.In order to also make the web 6 fully effective, a spacer bead 16 is arranged on the rear of the seat cover and runs parallel to the web 6, which prevents the web 6 from contacting one Hits the backrest and loses its effectiveness because it cannot deform backwards to the desired extent. To support the suspension properties and ventilation, the webs 2, 3, 4, 5, 6 are provided with a groove-like depression 17 on their surface forming the seat surface 13, these depressions 17 running parallel to one another.

Der vordere Bereich mit zur Vorderseite geneigten Stegen 2,3 macht im übrigen vorzugsweise 1/5 bis zu 2/5 des gesamten Sitzbereiches aus.The front area with webs 2, 3 inclined towards the front preferably makes up 1/5 to 2/5 of the entire seating area.

Durch die vorstehend dargelegten Eigenschaften der erfindungsgemäßen Sitzauflage ist es ohne weiteres verständlich, daß durch Bewegungen des darauf sitzenden Benutzers (Belastungswechsel) und/oder durch ein etwas holperiges Fahren, wenn die Sitzauflage auf einem Fahrzeugsitz liegt, eine Bindegewebsmassage bzw. Lymphdrainage erfolgt, die wohl allgemein, insbesondere aber von Rollstuhlfahrern, sehr begrüßt wird.Due to the above-described properties of the seat cover according to the invention, it is readily understandable that a connective tissue massage or lymphatic drainage takes place through movements of the user sitting on it (change in load) and / or through somewhat bumpy driving when the seat cover lies on a vehicle seat in general, but especially by wheelchair users.

Die Anzahl der Stege ist selbstverständlich variabel und nicht auf die im Ausführungsbeispiel angegebene Anzahl beschränkt.The number of webs is of course variable and is not limited to the number specified in the exemplary embodiment.

In der Praxis ist es zweckmäßig, die Sitzauflage in eine Hülle zu stecken, die nicht zu eng sein darf, um die erwünschten Verformungen zuzulassen.In practice, it is advisable to put the seat cover in a cover that must not be too tight to allow the desired deformations.

Claims (6)

  1. Seat top molded in one piece of a permanently elastic material, with a bottom part as well as a front face and an opposite rear face, several ridges approximately parallel to each other and running transversely in relation to the direction of seating emerge from the bottom part thereof, whereby the ridges in the forward area are inclined toward the front face, while the other ridges located in the central and rear area are inclined toward the rear face and whereby the ridges inclined toward the front face are provided with projections at their upper free ends, said projections extending approximately horizontally or approximately at a parallel to the bottom part toward the rear face while the ridges inclined towards the rear face are provided laterally at their upper free ends with projections extending approximately horizontally or approximately parallel to the bottom part toward the front face, so that the projections partially cover the ridge intervals and together with the upper free ends of the ridges constitute a seating surface,
    characterized in that
    a flap-like prolongation is provided laterally in front at the upper free end of the ridge (2) adjoining the front face, said prolongation being folded over down to the bottom part (1) so that it becomes flush with the underside of the bottom part (1) and
    in that one or several supporting ridges (15) extend from the flap-like prolongation (14) transversely to the direction of seating extend into the cavity formed by the folding-over.
  2. Seat top as in claim 1,
    characterized in that
    at the ridge (6) next to the back a spacing bead (16) running parallel to it is provided.
  3. Seat top as in claim 1 or 2,
    characterized in that
    the ridges (2, 3, 4, 5, 6) are provided on the seating surface (13) with groove-like depressions (17) running parallel to each other.
  4. Seat top as in claims 1 to 3,
    characterized in that
    the permanently elastic material has a volume weight of 40 to 100 kg/m³.
  5. Seat top as in claims 1 to 4,
    characterized in that
    the area of the ridges (2,3) inclined to the front face particularly takes 1/5 to 2/5 of the whole seating area.
  6. Seat top as in claims 1 to 5,
    characterized in that
    the vertical height of the ridges (3, 4, 5, 6) slightly decreases to the rear face end.
EP90913114A 1989-09-08 1990-09-07 Seat top Expired - Lifetime EP0442999B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3930021A DE3930021C2 (en) 1989-09-08 1989-09-08 Seat cover
DE3930021 1989-09-08
PCT/EP1990/001513 WO1991003193A1 (en) 1989-09-08 1990-09-07 Seat top

Publications (2)

Publication Number Publication Date
EP0442999A1 EP0442999A1 (en) 1991-08-28
EP0442999B1 true EP0442999B1 (en) 1994-11-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP90913114A Expired - Lifetime EP0442999B1 (en) 1989-09-08 1990-09-07 Seat top

Country Status (7)

Country Link
US (1) US5211697A (en)
EP (1) EP0442999B1 (en)
JP (1) JP2809876B2 (en)
AT (1) ATE114426T1 (en)
AU (1) AU6293890A (en)
DE (2) DE3930021C2 (en)
WO (1) WO1991003193A1 (en)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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DE4301362C2 (en) * 1993-01-20 1995-03-23 Koepp Ag Mattress with a core made of flexible polyurethane foam
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DE3930021C2 (en) 1999-09-09
WO1991003193A1 (en) 1991-03-21
US5211697A (en) 1993-05-18
DE59007857D1 (en) 1995-01-12
JP2809876B2 (en) 1998-10-15
AU6293890A (en) 1991-04-08
EP0442999A1 (en) 1991-08-28
JPH04502875A (en) 1992-05-28
ATE114426T1 (en) 1994-12-15
DE3930021A1 (en) 1991-03-14

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