US3895141A - A seating platforms comprising a rigid frame embedded in elastic material - Google Patents

A seating platforms comprising a rigid frame embedded in elastic material Download PDF

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Publication number
US3895141A
US3895141A US372291A US37229173A US3895141A US 3895141 A US3895141 A US 3895141A US 372291 A US372291 A US 372291A US 37229173 A US37229173 A US 37229173A US 3895141 A US3895141 A US 3895141A
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US
United States
Prior art keywords
frame
platform
seat
metal
elastic material
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
US372291A
Other languages
English (en)
Inventor
Ralph Steele
John Peter Goodier
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.)
Steele Brothers Pty Ltd
Original Assignee
Steele Brothers Pty Ltd
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
Priority to GB1342572A priority Critical patent/GB1386426A/en
Priority to LU67956A priority patent/LU67956A1/xx
Priority to DE19732314155 priority patent/DE2314155A1/de
Priority to IT67823/73A priority patent/IT984424B/it
Priority to CH896573A priority patent/CH562592A5/xx
Priority to US372291A priority patent/US3895141A/en
Application filed by Steele Brothers Pty Ltd filed Critical Steele Brothers Pty Ltd
Priority to NL7309278A priority patent/NL7309278A/xx
Priority to FR7324699A priority patent/FR2248673A5/fr
Priority to ZA731881A priority patent/ZA731881B/xx
Priority to AU57834/73A priority patent/AU5783473A/en
Priority to BE133252A priority patent/BE802072A/xx
Application granted granted Critical
Publication of US3895141A publication Critical patent/US3895141A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A47C5/00—Chairs of special materials
    • A47C5/04—Metal chairs, e.g. tubular
    • A47C5/046—Metal chairs, e.g. tubular of non-tubular cross-section
    • 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
    • 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
    • A47C7/16—Seats made of wooden, plastics, or metal sheet material; Panel seats
    • 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
    • A47C7/185—Seat parts having foamed material included in cushioning part with a stiff, rigid support
    • 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
    • A47C7/20—Seat parts having foamed material included in cushioning part with reinforcement in the foam layer
    • 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
    • A47C7/22—Straps or the like for direct user support or for carrying upholstery
    • 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
    • Y10S297/01—Foam
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/22—Nonparticulate element embedded or inlaid in substrate and visible

Definitions

  • a SEATING PLATFORMS COMPRISING A RIGID FRAME EMBEDDED IN ELASTIC MATERIAL This invention relates to seating platforms for chairs, settees, and like articles of furniture.
  • the term platform is here used as meaning a support for that part on which a person sits as well as the back rest, usually known as a squab.
  • Platforms made of rubber and other elastomers are well known and are used particularly in the motor industry. These platforms are however usually composed of sheets secured to frames by various types of attaching hooks or extensions on the platform.
  • Another lesser known platform includes a metal peripheral frame over which a textile material which may be elastic is stretched, with at least the underside of the assembly covered with a layer of rubber or other elastomer. The sides of the frame are sometimes slightly flexible in the plane of the platform to contribute towards the resil ience of the platform.
  • This type of platform is usually affixed to a chair frame by means of fastening means located at its corners. Such platforms are not only easily secured to chair frames, but are also relatively easily manufactured.
  • a further object is to provide a platform that does not need to be fixed to the frame ofa chair but may merely be positioned in a suitable receiving zone to perform its supporting function with no further attachment.
  • a platform composed of a closed metal frame surrounding the area of the plat form and a web spanning that area is characterised in that the web is made from an elastomer the composition and thickness of which are chosen so that the web will flex but not yield under the maximum load it is intended to carry, and the metal used for and the dimensions of the frame are selected to ensure that the frame does not permanently deform under forces exerted on it by the web.
  • the frame is made from a metal having a tensile strength of at least I50 kg/mm and preferably in the range l50 to 170 kg/mm
  • a suitable metal is cold rolled grey-blue steel.
  • the frame is preferably made by bending a metal band into the desired closed figure and joining the ends of the band.
  • the invention also provides a method of making a platform including the steps of sandwiching a metal frame between layers of an elastomer, at least one of the layers covering the area defined by the frame, and bonding the layers together around the frame.
  • FIG. 1 is a sectional view of a platform according to the invention
  • HO. 2 is a plan view of a frame for a platform as shown in FIG. I, and
  • FIG. 3 is a perspective view of a chair frame with a platform as shown in FIG. 1 about to be located in position on the frame.
  • a platform 2 according to the invention comprises a metal frame 6 embedded in a rubber web 4.
  • the frame 6 is made from a band of cold rolled grey-blue steel having a tensile strength of between 150 and l7O kg/mm.
  • the band is bent into the form of a square (or alternatively any other suitable closed figure) with rounded corners and the ends are welded together at 10 to complete the frame 6 as shown in FIG. 2.
  • the width, w, and the thickness, 1, of the band 6 are 10 mm and 1.7 mm respectively.
  • a typical rubber suitable for use for the web 4 has a tensile strength of at least 1.60 kg/mm and an elongation of at least 500%.
  • the rubber used for the web 4 is processed as follows, all formulations being given as parts by weight.
  • the platform 2 is manufactured as follows:
  • a 0.4 mm X 5 mm strip of rubber prepared as described above, is placed around the edge of a mould.
  • the steel frame 6 is then placed on the strip and finally a sheet 2.1 mm thick of the rubber is placed on top of the frame 6.
  • the sheet covers the entire area defined by the frame, thus forming the web 4.
  • the mould is closed and pressed.
  • the temperature of the mould is 655C, the closed time is 6 minutes and the pressure is 100 kg per square cm.
  • the mould is opened and the composite structure allowed to cool.
  • the platform 2 is completed by trimming the flash around the edges with a suitable cutting device, such as curved scissors.
  • FIG. 3 shows how a platform 2 as described above is fitted on the frame of a chair 8.
  • the frame of the chair 8 is provided with rabbet 12 which support the platform 2. There is no need to screw or otherwise to secure the platform 2 to the frame 8.
  • a seat capable of resiliently supporting the weight of a person, including a supporting frame surrounding a seating aperture and a platform covering the seating aperture, the platform being of an elastic sheet material and having a closed metal frame embedded in the elastic material substantially along the borders of the platform and wherein the platform lies loosely on the supporting frame and at least part of the metal frame is supported by the supporting frame.
  • a seat as claimed in claim 1, wherein the closed metal frame is of a metal having a tensile strength of at least 150 kglmm 3.
  • a seat as claimed in claim 2, wherein the tensile strength of the metal is between 150 and I kglmm 4.
  • a seat as claimed in claim 3, wherein the metal is cold rolled grey-blue steel.
  • suppporting frame has upwardly opening rabbets bordering said aperture, the edges of said platform resting in said rabbets.

Landscapes

  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Laminated Bodies (AREA)
US372291A 1972-03-22 1973-06-21 A seating platforms comprising a rigid frame embedded in elastic material Expired - Lifetime US3895141A (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
GB1342572A GB1386426A (en) 1972-03-22 1972-03-22 Seats
LU67956A LU67956A1 (de) 1972-03-22 1973-03-19
DE19732314155 DE2314155A1 (de) 1972-03-22 1973-03-21 Sitz
IT67823/73A IT984424B (it) 1972-03-22 1973-03-22 Piano per sedili e mobili analo ghi
CH896573A CH562592A5 (de) 1972-03-22 1973-06-20
US372291A US3895141A (en) 1972-03-22 1973-06-21 A seating platforms comprising a rigid frame embedded in elastic material
NL7309278A NL7309278A (nl) 1972-03-22 1973-07-03 Platform voor een stoelzitting, alsmede werkwijze voor het vervaardigen van een dergelijk platform.
FR7324699A FR2248673A5 (de) 1972-03-22 1973-07-05
ZA731881A ZA731881B (en) 1972-03-22 1973-07-06 Seating platforms
AU57834/73A AU5783473A (en) 1972-03-22 1973-07-06 Seating platforms
BE133252A BE802072A (fr) 1972-03-22 1973-07-09 Plates-formes de sieges

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
GB1342572A GB1386426A (en) 1972-03-22 1972-03-22 Seats
LU67956A LU67956A1 (de) 1972-03-22 1973-03-19
IT67823/73A IT984424B (it) 1972-03-22 1973-03-22 Piano per sedili e mobili analo ghi
CH896573A CH562592A5 (de) 1972-03-22 1973-06-20
US372291A US3895141A (en) 1972-03-22 1973-06-21 A seating platforms comprising a rigid frame embedded in elastic material
NL7309278A NL7309278A (nl) 1972-03-22 1973-07-03 Platform voor een stoelzitting, alsmede werkwijze voor het vervaardigen van een dergelijk platform.
FR7324699A FR2248673A5 (de) 1972-03-22 1973-07-05
ZA731881A ZA731881B (en) 1972-03-22 1973-07-06 Seating platforms

Publications (1)

Publication Number Publication Date
US3895141A true US3895141A (en) 1975-07-15

Family

ID=42828626

Family Applications (1)

Application Number Title Priority Date Filing Date
US372291A Expired - Lifetime US3895141A (en) 1972-03-22 1973-06-21 A seating platforms comprising a rigid frame embedded in elastic material

Country Status (11)

Country Link
US (1) US3895141A (de)
AU (1) AU5783473A (de)
BE (1) BE802072A (de)
CH (1) CH562592A5 (de)
DE (1) DE2314155A1 (de)
FR (1) FR2248673A5 (de)
GB (1) GB1386426A (de)
IT (1) IT984424B (de)
LU (1) LU67956A1 (de)
NL (1) NL7309278A (de)
ZA (1) ZA731881B (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980000358A1 (en) * 1978-08-07 1980-03-06 American Seating Co Beam-mounted folding chairs
US6292990B1 (en) * 1998-04-06 2001-09-25 Aichi Co., Ltd. Method of spreading a sheet on a frame member and method of manufacturing a chair by the sheet spreading method
US20060202540A1 (en) * 2004-10-14 2006-09-14 Begin Jason E Modular vehicle seat having water-permeable seating surfaces
US20070000112A1 (en) * 2005-06-10 2007-01-04 Eric Johnson Assembly apparatus and process for a chair back
US20070000111A1 (en) * 2005-06-10 2007-01-04 Eric Johnson Assembly apparatus and process for a chair back
US20100007190A1 (en) * 2005-03-01 2010-01-14 Eric Johnson Chair back

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2838100A (en) * 1955-12-12 1958-06-10 John W Follows Chair, sofa, or similar article
US2892489A (en) * 1957-09-26 1959-06-30 Curtiss Wright Corp Furniture and seat construction
US2901028A (en) * 1957-03-01 1959-08-25 Merton M Bottemiller Seat construction
US2946374A (en) * 1957-09-30 1960-07-26 Curtiss Wright Corp Seat construction and the like
US3259435A (en) * 1964-02-10 1966-07-05 United States Steel Corp Spring module
US3262136A (en) * 1962-07-25 1966-07-26 Burton Dixie Corp Cushion construction and method of forming the same
US3736022A (en) * 1971-07-26 1973-05-29 Oil Products Co Molded seat cushion with cast skin and insert receiving recess

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2838100A (en) * 1955-12-12 1958-06-10 John W Follows Chair, sofa, or similar article
US2901028A (en) * 1957-03-01 1959-08-25 Merton M Bottemiller Seat construction
US2892489A (en) * 1957-09-26 1959-06-30 Curtiss Wright Corp Furniture and seat construction
US2946374A (en) * 1957-09-30 1960-07-26 Curtiss Wright Corp Seat construction and the like
US3262136A (en) * 1962-07-25 1966-07-26 Burton Dixie Corp Cushion construction and method of forming the same
US3259435A (en) * 1964-02-10 1966-07-05 United States Steel Corp Spring module
US3736022A (en) * 1971-07-26 1973-05-29 Oil Products Co Molded seat cushion with cast skin and insert receiving recess

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980000358A1 (en) * 1978-08-07 1980-03-06 American Seating Co Beam-mounted folding chairs
US6292990B1 (en) * 1998-04-06 2001-09-25 Aichi Co., Ltd. Method of spreading a sheet on a frame member and method of manufacturing a chair by the sheet spreading method
US20060202540A1 (en) * 2004-10-14 2006-09-14 Begin Jason E Modular vehicle seat having water-permeable seating surfaces
US7984952B2 (en) 2004-10-14 2011-07-26 Brunswick Corporation Modular vehicle seat having water-permeable seating surfaces
US20100007190A1 (en) * 2005-03-01 2010-01-14 Eric Johnson Chair back
US20070000112A1 (en) * 2005-06-10 2007-01-04 Eric Johnson Assembly apparatus and process for a chair back
US20070000111A1 (en) * 2005-06-10 2007-01-04 Eric Johnson Assembly apparatus and process for a chair back
US7395590B2 (en) 2005-06-10 2008-07-08 Haworth, Inc. Method for assembling a frame assembly for a chair
US7461442B2 (en) 2005-06-10 2008-12-09 Haworth, Inc. Assembly apparatus and process for a chair back

Also Published As

Publication number Publication date
GB1386426A (en) 1975-03-05
BE802072A (fr) 1973-11-05
CH562592A5 (de) 1975-06-13
AU5783473A (en) 1975-01-09
FR2248673A5 (de) 1975-05-16
NL7309278A (nl) 1975-01-07
ZA731881B (en) 1974-02-27
LU67956A1 (de) 1975-04-11
DE2314155A1 (de) 1973-10-04
IT984424B (it) 1974-11-20

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