EP0021191A2 - Cushion of synthetic material - Google Patents

Cushion of synthetic material Download PDF

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Publication number
EP0021191A2
EP0021191A2 EP80103158A EP80103158A EP0021191A2 EP 0021191 A2 EP0021191 A2 EP 0021191A2 EP 80103158 A EP80103158 A EP 80103158A EP 80103158 A EP80103158 A EP 80103158A EP 0021191 A2 EP0021191 A2 EP 0021191A2
Authority
EP
European Patent Office
Prior art keywords
elevations
cushion pad
cushion
stress
differing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP80103158A
Other languages
German (de)
French (fr)
Other versions
EP0021191A3 (en
EP0021191B1 (en
Inventor
Reinhard Samaritter
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of EP0021191A2 publication Critical patent/EP0021191A2/en
Publication of EP0021191A3 publication Critical patent/EP0021191A3/en
Application granted granted Critical
Publication of EP0021191B1 publication Critical patent/EP0021191B1/en
Expired legal-status Critical Current

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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
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/02—Seat parts
    • A47C7/18—Seat parts having foamed material included in cushioning part

Definitions

  • the invention is directed to a molded foam cushion, the surface of which has elevations in the form of cylinders, cones, truncated cones, pyramids, truncated pyramids, spherical caps, cuboids, prisms, ribs and the like.
  • Such upholstery cushions are used in the furniture sector and above all in the vehicle sector.
  • Another known possibility is the working out of separate recesses, whereby a reduction in the hardness in partial areas of cushion elements has been achieved by reducing the load-bearing foam volume.
  • the former manufacturing processes are cumbersome and labor intensive.
  • the latter method is much more efficient; there is no optimal adaptation to the human body.
  • the above-mentioned cushion cushions always show indentations under load, i.e. that is, in addition to the directly loaded areas - e.g. B. in automobile seats through the thighs of the passenger - the non-loaded neighboring areas are deformed by lateral tensile stresses. This means that the desired local differences in hardness cannot be set.
  • the object of the invention is that an upholstery cushion is found which has an indentation characteristic which is optimal for the body and for the stress.
  • the elevations can be foamed at the same time as the cushion cushion during the molded foaming process and that, for example, elevations of a different geometry can be provided in the area of the buttocks in the area of the buttocks than in the area of the less stressful thighs.
  • the elevations can have a wide variety of configurations. Size and height are also of particular influence.
  • a reaction system which, for example, forms polyurethane foam with high indentation hardness is used to produce the foam-molded cushion.
  • the areas of the cushion that can be adjusted to be softer are obtained by dimensioning the knobs accordingly. In this way, cushion cushions with increasingly different hardness can be produced, in which the transition from one degree of hardness to the other can be adjusted almost continuously.
  • the cushion cushion 1 has side reinforcements 2, between which the actual seat 3 extends.
  • This seat 3 is covered with three groups 4, 5, 6 of frustoconical elevations 7 of different sizes and heights.

Landscapes

  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Buffer Packaging (AREA)

Abstract

(for the contracting States : BE, FR, GB, IT, NL, SE) 1. Cushion pad of plastics materials for seat furniture and vehicle seats, of which the stress-bearing surface has elevations (7) of differing geometry, between which free spaces are present, wherein the elevations (7) form one piece with a common supporting slab (1) of the same material, characterized in that the material is foamed in a mould ; in that the supporting slab (1) represents the actual cushion pad ; in that the height of the elevations (7) is small in relation to the height of this cushion pad (1) and in that the distribution of the elevations (7) of differing geometry corresponds to the differing areas of stress (4, 5, 6) of the cushion pad. (for the contracting State DE) 1. Use of a cushion pad formed in a mould, of which the stress-bearing surface has elevations (7) of differing geometry moulded on to it, between which elevations free spaces are present, wherein these elevations (7) form one piece with the actual cushion pad (1) and the height of the elevations (7) is small in relation to the height of the actual cushion pad (1) and the distribution of the elevations (7) with respect to their differing geometry corresponds to the differing areas of stress (4, 5, 6) of the cushion pad (1), for vehicle seats.

Description

Die Erfindung richtet sich auf ein formverschäumtes Polsterkissen, dessen Oberfläche Erhebungen in Form von Zylindern, Kegeln, Kegelstümpfen, Pyramiden, Pyramidenstümpfen, Kugelkalotten, Quadern, Prismen, Rippen und dergleichen aufweist.The invention is directed to a molded foam cushion, the surface of which has elevations in the form of cylinders, cones, truncated cones, pyramids, truncated pyramids, spherical caps, cuboids, prisms, ribs and the like.

Derartige Polsterkissen dienen dem Einsatz im Möbelbereich und vor allen Dingen auch im Fahrzeugsektor.Such upholstery cushions are used in the furniture sector and above all in the vehicle sector.

Zum Erzielen einer bequemen und körpergerechten Polsterqualität ist die Wahl der richtigen Eindrückhärte-Charakteristik von entscheidender Bedeutung.Choosing the right indentation hardness characteristic is of crucial importance in order to achieve a comfortable and ergonomic upholstery quality.

Man hat deshalb versucht, Blockschaumzuschnitte mit verschiedener Stauchhärte zusammenzukleben. Eine andere Lösung bestand darin, vorgefertigte Formteile einzuschäumen bzw. zu umschäumen.An attempt has therefore been made to glue block foam blanks with different compression hardness. Another solution was to foam or foam around prefabricated molded parts.

Eine weitere bekannte Möglichkeit ist das Ausarbeiten voneinander getrennter Aussparungen, wobei durch Verminderung des tragenden Schaumstoffvolumens eine Verringerung der Härte in Teilbereichen von Polsterelementen erreicht wurde.Another known possibility is the working out of separate recesses, whereby a reduction in the hardness in partial areas of cushion elements has been achieved by reducing the load-bearing foam volume.

Schließlich ist es auch schon bekannt, bei Herstellung von Polsterkissen durch Formverschäumen die zu belastende Oberfläche (Sitzfläche, Lehne) mit angeformten Erhebungen gleicher Gestaltung und Größe auszustatten.Finally, it is also known to strain the manufacture of upholstered cushions by foam molding de to equip the surface (seat, backrest) with molded elevations of the same design and size.

Die erstgenannten Herstellungsverfahren sind umständlich und lohnintensiv. Das zuletzt genannte Verfahren ist wesentlich rationeller; eine optimale Anpassung an den menschlichen Körper ist dabei keineswegs gegeben. Es treten bei den vorgenannten Polsterkissen unter Belastung immer Eindrückverformungen auf, d. h., zusätzlich zu den direkt belasteten Flächen - z. B. bei Automobilsitzen durch die Oberschenkel des Passagiers - werden auch die nicht belasteten Nachbarbereiche durch seitlich knickende Zugspannungen verformt. Damit ist die Einstellung der gewünschten lokalen Unterschiede in der Härte nicht möglich.The former manufacturing processes are cumbersome and labor intensive. The latter method is much more efficient; there is no optimal adaptation to the human body. The above-mentioned cushion cushions always show indentations under load, i.e. that is, in addition to the directly loaded areas - e.g. B. in automobile seats through the thighs of the passenger - the non-loaded neighboring areas are deformed by lateral tensile stresses. This means that the desired local differences in hardness cannot be set.

Die Aufgabe der Erfindung besteht darin, daß ein Polsterkissen gefunden wird, das eine körpergerechte und beanspruchungsgerecht optimale Eindrückhärte-Charakteristik aufweist.The object of the invention is that an upholstery cushion is found which has an indentation characteristic which is optimal for the body and for the stress.

Dies wird erfindungsgemäß dadurch erreicht, daß

  • a) die Erhebungen mit dem eigentlichen Kissen aus einem Stück bestehen und
  • b) Gruppen von Erhebungen unterschiedlicher Geometrie vorhanden sind.
This is achieved according to the invention in that
  • a) the surveys with the actual pillow consist of one piece and
  • b) there are groups of surveys of different geometries.

Dadurch wird erreicht, daß die Erhebungen gleichzeitig mit dem Polsterkissen beim Formschäumvorgang angeschäumt werden können und daß beispielsweise bei Sitzflächen im Bereich des Gesäßes Erhebungen anderer Geometrie vorgesehen werden können als im Bereich der weniger belastenden Oberschenkel. Die Erhebungen können, wie oben angegeben, die unterschiedlichsten Gestaltungen aufweisen. Von besonderem-Einflüß sind auch Größe und Höhe.It is thereby achieved that the elevations can be foamed at the same time as the cushion cushion during the molded foaming process and that, for example, elevations of a different geometry can be provided in the area of the buttocks in the area of the buttocks than in the area of the less stressful thighs. As stated above, the elevations can have a wide variety of configurations. Size and height are also of particular influence.

Zur Herstellung des formverschäumten Polsterkissens verwendet man ein Reaktionssystem, das beispielsweise Polyurethanschaumstoff hoher Eindrückhärte bildet. Die weicher einzustellenden Bereiche des Polsterkissens erhält man durch die entsprechende Dimensionierung der Noppen. Es lassen sich auf diese Weise Polsterkissen mit zunehmend unterschiedlicher Härte herstellen, bei denen der Übergang von einem Härtegrad zum anderen nahezu stufenlos eingestellt werden kann.A reaction system which, for example, forms polyurethane foam with high indentation hardness is used to produce the foam-molded cushion. The areas of the cushion that can be adjusted to be softer are obtained by dimensioning the knobs accordingly. In this way, cushion cushions with increasingly different hardness can be produced, in which the transition from one degree of hardness to the other can be adjusted almost continuously.

Weitere Vorteile des erfindungsgemäßen Polsterkissens sind darin zu sehen, daß man die Erhebungen nach Anbringen des Bezuges nicht mehr sieht und daß auch im belasteten Zustand infolge der zwischen den Erhebungen vorhandenen Freiräume eine erhebliche Verbesserung des klimatischen Sitzkomforts gegeben ist.Further advantages of the cushion according to the invention can be seen in the fact that the elevations can no longer be seen after the cover has been applied and that, even in the loaded state, the climatic seating comfort is considerably improved as a result of the free spaces between the elevations.

In einer Zeichnung ist das erfindungsgemäße Polsterkissen am Beispiel eines Automobilsitzes dargestellt und nachstehend näher erläutert. Es zeigen:

  • Fig. 1 das Kissen in der Draufsicht und
  • Fig. 2 das Kissen im Schnitt gemäß Linie A-B in Fig. 1.
In a drawing the cushion according to the invention is shown using the example of an automobile seat and explained in more detail below. Show it:
  • Fig. 1 the pillow in plan view and
  • 2 shows the pillow in section along line AB in FIG. 1st

Das Polsterkissen-1 weist Seitenverstärkungen 2 auf, zwischen denen sich die eigentliche Sitzfläche 3 erstreckt. Diese Sitzfläche 3 ist mit drei Gruppen 4, 5, 6 von zylinderstumpfartigen Erhebungen 7 unterschiedlicher Größe und Höhe bedeckt.The cushion cushion 1 has side reinforcements 2, between which the actual seat 3 extends. This seat 3 is covered with three groups 4, 5, 6 of frustoconical elevations 7 of different sizes and heights.

Claims (1)

Formverschäumtes Polsterkissen, dessen Oberfläche Erhebungen in Form von Zylinderstümpfen, Kegeln, Kegelstümpfen, Pyramiden, Pyramidenstümpfen, Kugelkalotten, Quadern, Prismen, Rippen aufweist, dadurch gekennzeichnet, daß a) die Erhebungen (7) mit dem eigentlichen Kissen (1) aus einem Stück bestehen und b) Gruppen (4, 5, 6) von Erhebungen (7) unterschiedlicher Geometrie vorhanden sind. Molded upholstered cushion, the surface of which has elevations in the form of truncated cylinders, cones, truncated cones, pyramids, truncated pyramids, spherical caps, cuboids, prisms, ribs, characterized in that a) the elevations (7) with the actual pillow (1) consist of one piece and b) groups (4, 5, 6) of elevations (7) of different geometries are present.
EP80103158A 1979-06-19 1980-06-06 Cushion of synthetic material Expired EP0021191B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792924662 DE2924662A1 (en) 1979-06-19 1979-06-19 SHAPED FOAM UPHOLSTERY PILLOW
DE2924662 1979-06-19

Publications (3)

Publication Number Publication Date
EP0021191A2 true EP0021191A2 (en) 1981-01-07
EP0021191A3 EP0021191A3 (en) 1981-02-11
EP0021191B1 EP0021191B1 (en) 1982-04-28

Family

ID=6073565

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80103158A Expired EP0021191B1 (en) 1979-06-19 1980-06-06 Cushion of synthetic material

Country Status (7)

Country Link
EP (1) EP0021191B1 (en)
JP (1) JPS564570A (en)
AU (1) AU532480B2 (en)
BR (1) BR8003787A (en)
CA (1) CA1139024A (en)
DE (2) DE2924662A1 (en)
ES (1) ES251483Y (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0281694A1 (en) * 1987-03-11 1988-09-14 Magerik Ltd A seat
GB2224434A (en) * 1988-10-31 1990-05-09 Kwei Chun Shek Human body support apparatus
DE4434396A1 (en) * 1994-09-27 1996-03-28 Silja Praski Back massager and scratching device
US5997077A (en) * 1997-08-23 1999-12-07 Volkswagen Ag Deformable structure for protection of vehicle occupants
US7059682B2 (en) 2000-07-03 2006-06-13 Herman Miller, Inc. Seating structure having flexible seating surface
GB2441418A (en) * 2006-08-30 2008-03-05 Lear Corp Vehicle seat cushion with holes to make regions of the cushion softer than others
US7661764B2 (en) 2006-08-30 2010-02-16 Lear Corporation Vehicle seat assembly having a hardness gradient via “A” surface intrusions and/or protrusions
US7934774B2 (en) 2006-03-31 2011-05-03 Lear Corporation Vehicle seat assembly having a hardness gradient

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2523149B2 (en) * 1986-05-26 1996-08-07 グレコリー、ピーター、ジョージ、ゴードン Chair material
ZA891755B (en) * 1988-06-30 1989-11-29 Johanna Groenewald Petronella Mattress
US6336681B1 (en) 1998-05-18 2002-01-08 Robert Andrew Crosbie Chair and seat cushion therefor
PL1871197T3 (en) 2005-03-30 2022-08-22 Woodbridge Foam Corporation Foam seat element, mold for the production thereof and method to manufacture the mold
US8425887B2 (en) 2006-09-29 2013-04-23 Genzyme Corporation Amide dendrimer compositions
JP5242088B2 (en) * 2007-06-27 2013-07-24 株式会社イノアックコーポレーション Automotive seat cushion
DE102009057072B4 (en) * 2009-12-04 2016-08-11 Grammer Aktiengesellschaft Pad with ventilation for a vehicle seat

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB847131A (en) * 1957-08-02 1960-09-07 Hallam Sleigh & Cheston Ltd Improvements in seats
FR2131448A5 (en) * 1971-03-31 1972-11-10 Dupol Rubbermald Gmbh
US4064578A (en) * 1975-06-15 1977-12-27 Junji Yamada Therapeutic cushion
DE2837630A1 (en) * 1978-08-29 1980-03-06 Biedermann Gmbh & Co Kg F Working chair with seat and backrest of polyurethane - having closed-pore surface with domed studs and perforations

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB847131A (en) * 1957-08-02 1960-09-07 Hallam Sleigh & Cheston Ltd Improvements in seats
FR2131448A5 (en) * 1971-03-31 1972-11-10 Dupol Rubbermald Gmbh
US4064578A (en) * 1975-06-15 1977-12-27 Junji Yamada Therapeutic cushion
DE2837630A1 (en) * 1978-08-29 1980-03-06 Biedermann Gmbh & Co Kg F Working chair with seat and backrest of polyurethane - having closed-pore surface with domed studs and perforations

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0281694A1 (en) * 1987-03-11 1988-09-14 Magerik Ltd A seat
GB2224434A (en) * 1988-10-31 1990-05-09 Kwei Chun Shek Human body support apparatus
GB2224434B (en) * 1988-10-31 1993-06-23 Kwei Chun Shek A method of and apparatus for supporting the human body
DE4434396A1 (en) * 1994-09-27 1996-03-28 Silja Praski Back massager and scratching device
US5997077A (en) * 1997-08-23 1999-12-07 Volkswagen Ag Deformable structure for protection of vehicle occupants
US7059682B2 (en) 2000-07-03 2006-06-13 Herman Miller, Inc. Seating structure having flexible seating surface
US7794022B2 (en) 2000-07-03 2010-09-14 Herman Miller, Inc. Body support structure having a molded elastomeric member
US7934774B2 (en) 2006-03-31 2011-05-03 Lear Corporation Vehicle seat assembly having a hardness gradient
GB2441418A (en) * 2006-08-30 2008-03-05 Lear Corp Vehicle seat cushion with holes to make regions of the cushion softer than others
US7661764B2 (en) 2006-08-30 2010-02-16 Lear Corporation Vehicle seat assembly having a hardness gradient via “A” surface intrusions and/or protrusions
US9038252B2 (en) 2006-08-30 2015-05-26 Lear Corporation Vehicle seat assembly having a hardness gradient via surface intrusions and/or protrusions
US9421895B2 (en) 2006-08-30 2016-08-23 Lear Corporation Vehicle seat assembly having a hardness gradient via “A” surface intrusions and/or protrusions

Also Published As

Publication number Publication date
ES251483U (en) 1980-10-01
EP0021191A3 (en) 1981-02-11
JPS564570A (en) 1981-01-17
DE3060337D1 (en) 1982-06-09
AU532480B2 (en) 1983-09-29
ES251483Y (en) 1981-03-16
EP0021191B1 (en) 1982-04-28
CA1139024A (en) 1983-01-04
AU5939080A (en) 1981-01-08
BR8003787A (en) 1981-01-13
DE2924662A1 (en) 1981-01-15

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