US3384148A - Upholstery supports - Google Patents

Upholstery supports Download PDF

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Publication number
US3384148A
US3384148A US549864A US54986466A US3384148A US 3384148 A US3384148 A US 3384148A US 549864 A US549864 A US 549864A US 54986466 A US54986466 A US 54986466A US 3384148 A US3384148 A US 3384148A
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United States
Prior art keywords
support
thickness
edges
portions
curved
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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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US549864A
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English (en)
Inventor
Sarginson John Francis
Marlow Douglas Charles
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Pirelli Ltd
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Pirelli Ltd
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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
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/02—Seat parts
    • A47C7/28—Seat parts with tensioned springs, e.g. of flat type
    • A47C7/282—Seat parts with tensioned springs, e.g. of flat type with mesh-like supports, e.g. elastomeric membranes
    • 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
    • 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

  • upholstery supports which are manufactured in the form of sheets or platforms have become well known articles .of commerce and the uses of them are becoming more widespread.
  • the upholstery support In the furniture industry (and that is used in its more colloquial sense to indicate the industry which makes chairs, tables, beds and the like as well as in the wider sense which embraces the industry which makes furniture for use in land, sea and air vehicles) there is a requirement for the upholstery support to have four points at which said support can be removably attached to a seat frame for example.
  • the object of the present invention is to overcome this disadvantage which is undesirable aesthetically and for the reason, for example, that the upholstery material is not supported properly where there is a gap between the edge of the upholstery support and the seat frame.
  • the present invention consists in an upholstery support which includes a sheet of elastomeric material and four rigid members which constitute a part of the means by which said support is adapted to be attached to a frame, said sheet having been vulcanised .or cured and having been so shaped during said vulcanisation or cure as to have two edges which are opposite to one another and which are curved outwardly over at least a major part of their lengths both with respect to one another and to the centre point of the support, at least a part of each of said four rigid members having become embedded in or bonded to said elastomeric material at the corners of said sheet during said vulcanisation or cure.
  • said sheet has been so shaped during vulcanisation or cure as to have four edges of which opposite pairs are curved outwardly over at least a major portion of their lengths with respect both to one another and to the centre point of the sheet.
  • said sheet has been so shaped during vulcanisation or cure as to have two edges which are opposite to one another and which are curved outwardly over at least a major portion of their lengths both with respect to one another and to the centre point of the support, and as to have two other edges which are dissimilar in plan profile, the first of said other two edges being curved outwardly over at least a major portion of its length with respect to the centre point of the support and at least a part of the second of said other two edges being nearer said centre point than any part of the first of said other two edges.
  • FIGURE 1 illustrates diagrammatically the preferred embodiment of upholstery support made according to the present invention
  • FIGURE 2 illustrates the support of FIGURE 1 mounted upon a frame under tension
  • FIGURE 3 illustrates an alternative embodiment of the present invention
  • FIGURE 4 illustrates the embodiment of FIGURE 3 mounted upon a frame under tension
  • FIGURES 5 and 6 illustrate, respectively, a platform at rest (tension not applied) and said platform under tension
  • FIGURE 7 illustrates an underside plan View of one manner in which diagonal bracing of a support in accordance with the present invention may be effected.
  • FIGURES 8 and 9 illustrate diagrammatically sections along a diagonal in for example FIGURE 1 of two different further alternative embodiments of support according to the invention.
  • FIGURES 1 and 2 there is illustrated an upholstery support 10 which is in the form of a moulded sheet .of natural and/ or synthetic elastomer.
  • the sheet has four edges 11, '12, 13, '14 of which opposite pairs are curved outwardly, both with respect to one another and to the centre point 15 of the sheet. It will be seen that each curved edge terminates at each end thereof in a corner region 16, there being four corner regions in all, each identical with the other.
  • each of the corner regions is provided with a means which will permit said support to be removably attached to a frame, said means consisting of a first device (D-piece) 17 of which a part is encircled by, embedded in or bonded to the elastomer of which the sheet is made. Said means 17 are complementary to a second device (hook) 18 fixed to a frame 19. It will be seen from FIGURE 1 that, as manufactured, the support has edges having quite a pronounced curvature which is straightened out or eliminated when the support is mounted on the frame under tension as illustrated in FIGURE 2.
  • an upholstery support 30 has opposite edges 31, 32 curved to quite a considerable extent outwardly with respect both to one another and to a centre point 33, a third edge 34 having a slight outward curvature with respect to said centre point 33 but the fourth edge of which is not curved as are the other edges.
  • the edge 35 is so shaped that the middle portion of the edge is closer to the centre point 33 than is any point on the edge 34.
  • FIGURE 4 it will be noted from FIGURE 4 that the slightly curved edge 34 has become straightened out.
  • the edges 31, 32 have been shown as being still curved when the support has been mounted under tension, the curvature of the mounted support matching that of the frame but, depending on the users requirements, the edges 31, 32 could have been straightened out.
  • FIGURES 3 and 4 has been made with a centrally located portion of which the boundary line has been marked 36.
  • This centrally located portion and the surrounding peripheral portion 37 may be made in the same manner (as regards thickness, shape and other characteristics) as the centrally located portions of the various embodiments of support described and illustrated in our co-pending patent application No. 35,548 of 1962.
  • any platform can be designed to be such that, under tension, the side or sides will become straight or substantially so.
  • relevant formulae, set out below, are to be found in standard pocket or other reference books for engineers and the like or can be worked out by means of suitable application of the value of one or more constants to better known formulae:
  • FIGURE 7 there is illustrated an upholstery support 49 having means 41 located at each corner and embedded in or bonded to the elastomeric material of the support.
  • Each side of the support is illustrated as being curved over the major part of its length, the curved parts terminating in straight-line portions 42.
  • the curvature of the sides may, of course, be extended so as to terminate substantially at the junction point of said sides with the straight-line portion 43.
  • the support is moulded with diagonal bracing elements 44 which extend from the corner regions of the support towards the central region 45.
  • the elements 44 do not extend across said central region 45 but each element 44 is connected to adjacent elements 44 by portions 46 thereby defining a central region which is circular in plan configuration.
  • the elements 44 and the connecting portions 46 are of greater thickness than the portions thereof indicated by the reference numerals 47, 48.
  • the curved edges are formed as edge portions 49 which define or bound portions 50, the edge portions 49 being of the same thickness as the elements 44 and portions 46.
  • the central region 45 and the portions 50 are of the same thickness as the portions 47, 48, and this thickness may be, for example, of the order of one quarter of the thickness of the elements 44 and portions 46.
  • the shape in plan of the elements 44 may be varied, as also may the shape and disposition in the elements 44 of the portions 47, 48.
  • a support having outwardly curved sides may be made in which the thickness is greatest at or in the vicinity of the periphery and is progressively or uniformly reduced to a minimum at the centre (or at a central region) of the support.
  • This modification can be of great importance as it tends to prevent attack of the elastomeric material by ozone which is most likely to take place in those zones where there is a change in thickness of material accompanied by concentration of tensile stresses.
  • Such zones are thus found in the vicinity of the points (in FIGURE 3) where the chain-line diagonals cross the boundary line 36.
  • FIGURES 8 and 9 which each represent diagrammatically a section on one of the diagonals in for example FIGURE 1, there are illustrated two ways of avoiding pronounced steps where the thickness of the support changes from a first value to a second and greater value.
  • the support is illustrated as having thickened bosses 60 at the corners, D-pieces or triangular pieces 61 having parts thereof embedded in or bonded to the elastomeric material.
  • the thickness of the elastomeric material decreases uniformly from points 62 to the centre point 63.
  • the support of FIGURE 8 (ignoring the presence of the bosses 60) is of greatest thickness at its periphery and is of least thickness at its centre, decrease in thickness being as uniform as possible from the periphery to the centre, or being uniform in some cross-sections of the support (for example in cross-section taken along planes lying at 45 to the diagonals in FIG- URE 1) and non-uniform in others (for example in crosssections taken along the diagonals in FIGURE 1).
  • the thickness of the support is substantially constant from points 64 to points 65 and decreases uniformly from points 65 to the centre point 66.
  • All of the points 65 on the support describe a circle and the portion of the support limited by all of the points 64 on the one hand and all of the points 65 on the other hand constitutes a continuous peripheral portion.
  • the support may be provided with portions which are similar to the portions 47, 48 of FIGURE 7.
  • the upper surfaces of the supports are substantially planar.
  • the thickness of elastomeric material in all of the supports illustrated in FIGURES 1 to 7 is greatest at the corners where the D-pieces or triangular pieces are embedded in or bonded to the said material.
  • the material at these regions is formed into a thickened boss similar to the bosses 60 shown in FIG- URES 8 and 9 because the corner regions have to be capable of withstanding the tension applied thereto whether the support is supporting a load or not.
  • a resilient upholstery support of an elastomeric material including four peripheral portions and a centrally located portion integral with one another and defining a one-piece construction, the outer edges of said peripheral portions having substantially greater thicknesses than that of said centrally located portion, said support comprising a substantially flat sheet in its free form with one face thereof substantially planar, four spaced bosses of said elastomeric material integral with said peripheral portions, four suspension means separate from and secured to said bosses, each of said suspension means including a part which is moulded in one of said bosses, at least two of said outer edges being located upon opposite sides of said centrally located portion being curved outwardly both with respect to one another and to the centre point of the support, said curved edges extending between two of said bosses over substantially the entire distance between said bosses.
  • a support as claimed in claim 9, wherein the decrease from said greatest thickness to said least thickness is uniform in some cross-sections of the support and is non-uniform in other cross-sections of the support.

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  • Lining Or Joining Of Plastics Or The Like (AREA)
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US549864A 1965-05-18 1966-05-13 Upholstery supports Expired - Lifetime US3384148A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB20888/65A GB1133702A (en) 1965-05-18 1965-05-18 Upholstery supports

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US3384148A true US3384148A (en) 1968-05-21

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DK (1) DK114647B (enrdf_load_html_response)
GB (1) GB1133702A (enrdf_load_html_response)
SE (1) SE322607B (enrdf_load_html_response)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3659898A (en) * 1970-12-09 1972-05-02 Bernard Yellin Chair
US3695706A (en) * 1969-05-30 1972-10-03 Hedley James Basher Upholstery supports and the manufacture thereof and structures incorporating such upholstery supports
US3888029A (en) * 1972-10-04 1975-06-10 Nat Advertising Company Changeable multiple image display apparatus
US3913978A (en) * 1973-11-28 1975-10-21 Lester Liane E Seat construction
US3961823A (en) * 1974-09-09 1976-06-08 General Motors Corporation Vehicle seat bolster wire assembly
US4415198A (en) * 1980-11-18 1983-11-15 Brearley Gordon D Seat for invalid walker
US6533019B1 (en) 2000-10-20 2003-03-18 Steelcase Development Corporation Partition panel with infill arrangement
US20060097237A1 (en) * 2004-11-08 2006-05-11 Mcgregor Robert R Panel barriers
US20100194172A1 (en) * 2009-02-04 2010-08-05 L & P Property Management Company Textile-attached deck assembly
US9004604B2 (en) 2009-02-04 2015-04-14 L&P Property Management Company Installation of a textile deck assembly in an article of furniture

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2488728A (en) * 1945-04-18 1949-11-22 Frank C Snedaker & Co Inc Chair seat and back
US3037766A (en) * 1959-03-09 1962-06-05 Berg Lader Resilient support for furnitures
US3125156A (en) * 1959-05-22 1964-03-17 Grimshaw
US3208085A (en) * 1961-06-22 1965-09-28 Vitafoam Ltd Resilient cushion
US3217786A (en) * 1962-09-18 1965-11-16 Pirelli Ltd Upholstery supports

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2488728A (en) * 1945-04-18 1949-11-22 Frank C Snedaker & Co Inc Chair seat and back
US3037766A (en) * 1959-03-09 1962-06-05 Berg Lader Resilient support for furnitures
US3125156A (en) * 1959-05-22 1964-03-17 Grimshaw
US3208085A (en) * 1961-06-22 1965-09-28 Vitafoam Ltd Resilient cushion
US3217786A (en) * 1962-09-18 1965-11-16 Pirelli Ltd Upholstery supports

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3695706A (en) * 1969-05-30 1972-10-03 Hedley James Basher Upholstery supports and the manufacture thereof and structures incorporating such upholstery supports
US3659898A (en) * 1970-12-09 1972-05-02 Bernard Yellin Chair
US3888029A (en) * 1972-10-04 1975-06-10 Nat Advertising Company Changeable multiple image display apparatus
US3913978A (en) * 1973-11-28 1975-10-21 Lester Liane E Seat construction
US3961823A (en) * 1974-09-09 1976-06-08 General Motors Corporation Vehicle seat bolster wire assembly
US4415198A (en) * 1980-11-18 1983-11-15 Brearley Gordon D Seat for invalid walker
US6533019B1 (en) 2000-10-20 2003-03-18 Steelcase Development Corporation Partition panel with infill arrangement
US20060097237A1 (en) * 2004-11-08 2006-05-11 Mcgregor Robert R Panel barriers
US20100194172A1 (en) * 2009-02-04 2010-08-05 L & P Property Management Company Textile-attached deck assembly
US8136884B2 (en) 2009-02-04 2012-03-20 L & P Property Management Company Textile-attached deck assembly
US9004604B2 (en) 2009-02-04 2015-04-14 L&P Property Management Company Installation of a textile deck assembly in an article of furniture

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Publication number Publication date
SE322607B (enrdf_load_html_response) 1970-04-13
GB1133702A (en) 1968-11-13
DK114647B (da) 1969-07-21

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