US3298046A - Upholsteries of elastic sponge material - Google Patents

Upholsteries of elastic sponge material Download PDF

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Publication number
US3298046A
US3298046A US414726A US41472664A US3298046A US 3298046 A US3298046 A US 3298046A US 414726 A US414726 A US 414726A US 41472664 A US41472664 A US 41472664A US 3298046 A US3298046 A US 3298046A
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United States
Prior art keywords
blocks
base
upholstery
bases
sponge material
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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
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US414726A
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English (en)
Inventor
Clementi Armando
Tangorra Giorgio
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Pirelli Tyre SpA
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Pirelli Tyre SpA
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    • 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
    • A47C27/142—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
    • 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

  • Elastic sponge upholsteries of different kinds such as mattresses, cushioins for seats or backs of vehicles and the like, comprising a molded piece substantially consisting of a continuous layer and a plurality of integral blocks, are well known.
  • the blocks are connected perpendicular to the continuous layer in a direction parallel to that of the normally applied load, that is to the height of the upholstery.
  • the blocks are tapered and have a transverse section (variable resistant section) Whose area is gradually variable along the load direction.
  • the greater and smaller bases of these blocks have the same geometrical configuration.
  • the variation of a transverse sec tion through the height is such that the lateral face of the block has a lateral profile quite linear or quite convex towards the outside. Consequently the blocks have a shape of truncated pyramids or of truncated cones, or even of spherical segments.
  • upholsteryies of this type comprising a single molded piece (in which case an upper layer of material was bonded to the face of the smaller base of the blocks) or two overturned superposed molded pieces (the blocks of which were in mutual contact) possessed, at the first contact with the users body or under small loads, a sufiicient softness or yieldingness as well as a fair resistance to compression under considerable loads. That is to say that these types of upholsteries met the requirements essential to ensure satisfactory comfort. In such upholsteries, the intermediate spaces between the tapered blocks constituted horizontal channels which cooperated to the obtention of the above mentioned requirements.
  • Another object of the present invention is to provide an improved upholstery, of the type comprising tapered blocks, in which each block has a greater base of a quadrangular configuration and a smaller base of polygonal configuration with a number of sides greater than four, or, as an alternative, a circular configuration, and the lateral surface connecting two adjacent bases is a continuous and outwardly directed concavity.
  • the corn cavity is intended as referring to the sections defined by the lateral surface at the lines of intersection with planes passing through the axis of a block.
  • FIG. 1 is a top view of a detail of a molded unit provided with blocks according to the invention
  • FIG. 2 is a sectional view taken along line 2-2 of FIG. 1;
  • FIG. 3 is a sectional view taken along line 33 of FIG. 1;
  • FIG. 4- is a sectional View, analogous to that of FIG. 2, of an upholstery according to one embodiment of the invention.
  • FIG. 5 is a sectional view, analogous to that of FIG. 2,
  • FIG. 6 is a sectional view of an upholstery according to a further embodiment of the invention, taken along a depression between the ashlars of the service surface.
  • a molded piece ll of elastic sponge material as for instance sponge rubber or expanded (porous) polyurethane, comprises a continuous layer 2 and a plurality of integral equal tapered blocks 3.
  • the blocks are attached adjacent to one another to the continuous layer by their greater bases 4.
  • the greater base 4, of each block 3 has a quadrangular, preferably square configuration, as illustrated in FIG. 1.
  • the smaller base 5 is con centric with respect to the greater base and has a different configuration, that is a polygonal configuration with a number of sides greater than four. This base has been illustrated by a polygon with the maximum number of sides, namely a base of circular configuration.
  • the lateral surface s, of each block joins the two bases having different geometric configurations.
  • This surface is characterized by a continuous and outwardly directed concave shape.
  • the concavity is referred to as the 'sec tions defined by the lateral surface at the lines of intersection with planes passing through the axis of the block.
  • FIG. 2 illustrates the concave path of the line obtained by sectioning the lateral surface 6, of each block 3, at the line of intersection with the plane 2-2 passing through the axis of the block and the middle point of the concerned sides of the greater base 4.
  • FIG. 3 illustrates the concave path of the line obtained in the same way as in FIG. 2, only with respect to the plane 3-3 passing through the axis of the block and the ends of the concerned sides of the greater base 4.
  • FIG. 2 it may be noted that the sectioning line has a sharply curved path, in close proximity with the greater base 4- which tapers off gradualiy to an only slightly curved path near the smaller base.
  • FIG. 3 represents the curved path as having a substantially uniform radius assumed by the sectioning line 6 with respect to the di agonal of the greater base 4.
  • the path of the sectioning lines which are obtained by starting from the middle point of a side of the greater base and moving to either end of that same side, varies gradually from the limit condition indicated in FIG. 2 to the limit condition indicated in FIG. 3.
  • the curves represented by the sectioning line in the limit conditions illustrated in FIGS. 2 and 3 as well as the corresponding intermediate positons and in any other embodi ment in accordance with the invention, comprise portions which may be analytically expressed by mathematical quadratic functions, as parabolas, ellipses, circles and hyperbolas, whose centers of curvature are outside the block.
  • the curved path (of small radius) has, prefer-ably, radius equal to or greater than of the block height.
  • the sectioning lines besides comprising curved portions, may comprise rectilinear segments for connection or completion with the continuous layer. It is preferable that the area of the greater base exceed that of the smaller base by at least. 40%.
  • the individual blocks 3 may be provided with vertical recesses 7 as illustrated.
  • FIG. 4- it is possible to manufacture an upholstery by applying and securing to a piece, molded in accordance with the invention, a layer 8 of an elastic sponge material.
  • the layer is secured to the upwardly directed smaller bases of the blocks of the invention.
  • the upper layer 8 is suitably molded or cut and constitutes the service surface of the upholstery.
  • the reference numeral 9 indicates a horizontal channel originated by the tapering of the blocks.
  • Two molded pieces may be superposed, in an already known way, with the respective smaller bases of the block in mutual contact. This is illustrated in FIG. with pieces 1 and 1'.
  • the reference numeral 10 indicates the inner horizontal channels comprised bet-ween the overturned superposed tapered blocks. Of course, this embodiment would be reversible with either side being the service surface area.
  • two molded pieces may be combined with other pieces in a way different from that indicated above.
  • single elements of elastic sponge material having a density different from that of the material constituting the molded pieces, may be interposed between the smaller bases of the overturned oppose-d blocks.
  • service surfaces or surfaces of the upholstery may be provided with ashlars, in an already known manner, in such a way that each ashlar may cover the greater base of the relative block.
  • FIGURE 6 is a section taken along one of said depressions of a mattress according to the invention having a cover over the elastic sponge material.
  • the features of softness or yieldingness at the first contact with the users body or under small loads, and the resistance to compression under considerable loads are improved over the conventional upholsteries of this type. Furthermore, the invention achieves an economy of material over the conventional upholsteries.
  • the uphlosteries according to the present invention are advantageously lighter than the conventional upholsteries while their mechanical properties are improved. Moreover, by virtue of the practical elimination of any corner edges and of any discontinuity from the lat eral surfaces of the blocks, these upholsteries possess an improved resistance to fatigue stresses.
  • the expression quadrangular configuration as here used, means any polygon (comprising those having curved sides) having four vertices and consequently four angles.
  • An upholstery for furniture or vehicles comprising a molded piece of elastic sponge material consisting of a continuous layer and uniformly tapered blocks, said blocks having a greater base and a smaller base with a cross sec tion variable from the former to the latter, said greater bases being attached to and integral with said continuous layer, said greater base having a quadrangular configuration, said smaller base having a closed plane configuration, 65
  • a lateral surface connecting the two bases and having a continuous and variable outwardly directed concave conformation, said concavity being noted in the sections defined by the lateral surface at lines of intersection with planes passing through the axis of said block and said variability taking place between said sections.
  • An upholstery according to claim 1 wherein two of said molded pieces are disposed in overturned superposed position with their blocks mutually opposed and attached by the smaller bases, and said continuous layers providing service surfaces, said surfaces being provided with crossed depressions, and wherein in correspondence of each crossing of said depressions the height of the inner horizontal channels, which cross analogously to the depressions, may be lower than at other points of the channels between two continuous crossings.

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  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
US414726A 1963-12-03 1964-11-30 Upholsteries of elastic sponge material Expired - Lifetime US3298046A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2481863 1963-12-03

Publications (1)

Publication Number Publication Date
US3298046A true US3298046A (en) 1967-01-17

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Application Number Title Priority Date Filing Date
US414726A Expired - Lifetime US3298046A (en) 1963-12-03 1964-11-30 Upholsteries of elastic sponge material

Country Status (6)

Country Link
US (1) US3298046A (de)
AT (1) AT249305B (de)
BE (1) BE656194A (de)
CH (1) CH425451A (de)
DE (1) DE1908883U (de)
FR (1) FR1414572A (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5700987A (en) * 1994-06-16 1997-12-23 Lucent Technologies Inc. Alignment and bonding techniques
US6546578B1 (en) * 1998-04-01 2003-04-15 Johnson Controls Technology Company Seat cushion for vehicle seats
US20040189061A1 (en) * 2001-07-28 2004-09-30 Dirk Hartwich Air-conditioned upholstered element for the seat of a motor vehicle
US20050082885A1 (en) * 2001-12-19 2005-04-21 Jan Thunissen Ventilation system for an upholstery part
US20060290175A1 (en) * 2003-04-08 2006-12-28 Johnson Controls Gmbh Vehicle seat
US7229129B2 (en) 2001-01-05 2007-06-12 Johnson Controls Technology Company Ventilated seat
US20110148175A1 (en) * 2008-05-22 2011-06-23 Delta Tooling Co., Ltd. Elastic member made of expanded resin beads, laminated elastic structural body, and seat structure
JP2016540690A (ja) * 2013-12-20 2016-12-28 ジョンソン・コントロールズ・ゲー・エム・ベー・ハー 特に車両シート用の発泡体部品、及び車両シート
US20180017354A1 (en) * 2016-07-08 2018-01-18 Bryce L. Betteridge Impact Absorbing Padding System with Elastomeric Sub-surface Structure
US12575685B2 (en) * 2024-08-27 2026-03-17 Young Hoon Park Core support and mattress using the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1994234A (en) * 1931-01-19 1935-03-12 Sherover Max Air ventilated sanitary mattress
US2141271A (en) * 1937-01-02 1938-12-27 Gerlofson Carl Hugo Upholstery
US2588823A (en) * 1949-04-25 1952-03-11 Glassman Jacob Rubber foam cushion
US2835313A (en) * 1956-02-27 1958-05-20 Gen Tire & Rubber Co Cellular elastic cushion

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1994234A (en) * 1931-01-19 1935-03-12 Sherover Max Air ventilated sanitary mattress
US2141271A (en) * 1937-01-02 1938-12-27 Gerlofson Carl Hugo Upholstery
US2588823A (en) * 1949-04-25 1952-03-11 Glassman Jacob Rubber foam cushion
US2835313A (en) * 1956-02-27 1958-05-20 Gen Tire & Rubber Co Cellular elastic cushion

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5700987A (en) * 1994-06-16 1997-12-23 Lucent Technologies Inc. Alignment and bonding techniques
US6546578B1 (en) * 1998-04-01 2003-04-15 Johnson Controls Technology Company Seat cushion for vehicle seats
US7229129B2 (en) 2001-01-05 2007-06-12 Johnson Controls Technology Company Ventilated seat
US20040189061A1 (en) * 2001-07-28 2004-09-30 Dirk Hartwich Air-conditioned upholstered element for the seat of a motor vehicle
US7108319B2 (en) 2001-07-28 2006-09-19 Johnson Controls Gmbh Air conditioned cushion part for a vehicle seat
US7261371B2 (en) 2001-12-19 2007-08-28 Johnson Controls Gmbh Ventilation system for an upholstery part
US20050082885A1 (en) * 2001-12-19 2005-04-21 Jan Thunissen Ventilation system for an upholstery part
US7467823B2 (en) 2003-04-08 2008-12-23 Johnson Controls Gmbh Vehicle seat
US20060290175A1 (en) * 2003-04-08 2006-12-28 Johnson Controls Gmbh Vehicle seat
US20110148175A1 (en) * 2008-05-22 2011-06-23 Delta Tooling Co., Ltd. Elastic member made of expanded resin beads, laminated elastic structural body, and seat structure
US8919887B2 (en) * 2008-05-22 2014-12-30 Delta Tooling Co., Ltd. Elastic member made of expanded resin beads, laminated elastic structural body, and seat structure
JP2016540690A (ja) * 2013-12-20 2016-12-28 ジョンソン・コントロールズ・ゲー・エム・ベー・ハー 特に車両シート用の発泡体部品、及び車両シート
US10065545B2 (en) 2013-12-20 2018-09-04 Johnson Controls Gmbh Foam part, in particular for a vehicle seat, and vehicle seat
US20180017354A1 (en) * 2016-07-08 2018-01-18 Bryce L. Betteridge Impact Absorbing Padding System with Elastomeric Sub-surface Structure
US20200386509A1 (en) * 2016-07-08 2020-12-10 Bryce L. Betteridge Impact Absorbing Padding System with Elastomeric Sub-surface Structure
US10907930B2 (en) * 2016-07-08 2021-02-02 Bryce L. Betteridge Impact absorbing padding system with elastomeric sub-surface structure
US12575685B2 (en) * 2024-08-27 2026-03-17 Young Hoon Park Core support and mattress using the same

Also Published As

Publication number Publication date
AT249305B (de) 1966-09-12
BE656194A (de) 1965-03-16
CH425451A (it) 1966-11-30
FR1414572A (fr) 1965-10-15
DE1908883U (de) 1965-01-21

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