US3768864A - Seating structure with foam embedded reinforcement frame - Google Patents

Seating structure with foam embedded reinforcement frame Download PDF

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Publication number
US3768864A
US3768864A US00246826A US3768864DA US3768864A US 3768864 A US3768864 A US 3768864A US 00246826 A US00246826 A US 00246826A US 3768864D A US3768864D A US 3768864DA US 3768864 A US3768864 A US 3768864A
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US
United States
Prior art keywords
base
load bar
load
frame
foam body
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
US00246826A
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English (en)
Inventor
A Niewulis
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.)
Hoover Group Inc
BEARING CO
Original Assignee
BEARING CO
Hoover Ball and Bearing Co
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 BEARING CO, Hoover Ball and Bearing Co filed Critical BEARING CO
Application granted granted Critical
Publication of US3768864A publication Critical patent/US3768864A/en
Assigned to HOOVER GROUP, INC. reassignment HOOVER GROUP, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: HOOVER UNIVERSAL, INC.
Assigned to FIRST NATIONAL BANK OF BOSTON, THE reassignment FIRST NATIONAL BANK OF BOSTON, THE SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HOOVER GROUP, INC., A CORP. OF DE.
Anticipated expiration legal-status Critical
Assigned to HOOVER GROUP, INC. reassignment HOOVER GROUP, INC. RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). RELEASE OF SECURITY INTEREST RECORDED AT REEL 4492 FRAME 0790 DATED 12/02/85 Assignors: FIRST NATIONAL BANK OF BOSTON, THE
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
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/12—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats with shell-shape seat and back-rest unit, e.g. having arm rests
    • 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
    • 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

Definitions

  • ABSTRACT A metal frame for a foam body seating structure having a base and back and supports which extend upwardly from the base.
  • the metal frame is embedded in the foam body and has load resisting bars therein which extend between the base and the back of the seating structure and which also extend between the arms and the base of the seating structure.
  • the load resisting bars have web portions which provide effective load resistance, and wires are provided which interconnect the load bars and form an outline of the desired shape of the foam body.
  • FIG. 1 a chair constructed ac- In producing a foam bodied contoured seating struc- 5 cording to this invention-is shown in FIG, 1 as including ture, foam is molded over a reinforcing frame.
  • the frame must provide support to the foam body and flexible comfort to the seating structures occupant.
  • Past practice has been to use wood reinforcement in molded foam seating structures of this type.
  • the wood is unreliable and lacks the requisite strength and the tubular frame is an inefficient use of metal which results in either a weak chair or one that is overweight.
  • the principal object of the present invention is to provide a seating structure consisting of a foam body with an embedded frame that is constructed to provide the requisite strength in a relatively lightweight structure.
  • the present invention provides a metal frame which can be embedded within the foam body of a seating structure having a base, a back, and arms.
  • the frame has at least one load bar running through the base of the seat and then through the back of the seat at an obtuse angle to the base.
  • the bar has a web portion which resiliently inhibits changes in the obtuse angle between base and back and thus carries the seating loads.
  • two load bars are provided in the base and back of the seat and each bar, is of channel shape so that it has two webs.
  • the frame also has another load bar which is secured to the first two and runs through the base and then runs at obtuse angles from the base through both arms of the seating structure.
  • This load bar is channel shape so that it also has web portions which resiliently inhibit variance in the angle between the base and the arms of the seating structure.
  • Wire struts are used to interconnect the load bars in such a fashion as to transmit load forces therebetween and conform to the shape of the foam body.
  • the seating structure is made by molding the foam body over the frame to form the desired contoured seating structure.
  • the resulting seating structure can provide desired rigidity without adversely affecting seating comfort and cost.
  • the unique frame is also simple, lightweight and readily adaptable for contoured, modernistic furniture.
  • FIG. 1 is a perspective view of an assembly chair which incorporated the unique seating structure of this invention
  • FIG. 2 is a sectional view of the seating structure as seen along line 2-2 of FIG. 1 with some parts broken away for purposes of clarity;
  • FIG. 3 is a perspective view of the seating structure with portions of the foam body removed to show internal detail
  • FIG. 4 is a sectional view along line 4-4 of FIG. 3 of one of the load bars which comprises part of the seating structure.
  • the seating structure 12 has a foam rubber body l3 molded to form a base or seat 16, arms 18, and a back 22.
  • the foam body 13 is molded over a frame 24 (FIG. 3).
  • the frame 24 is configured to provide resilient support to the foam body 13 and thus to an occupant of the seat structure 12.
  • the frame 24 comprises two backbase load bars 26 and 28 and an arm-base load bar 30 which are secured together by any suitable means, such as welding, so that the bar 30 extends across the bars 26 and 28.
  • Wires 32 are secured to and extend between the load bars so as to transmit load forces therebetween, there being sufficient wires 32 located in positions to form a frame 24 having a skeleton shape conforming closely to the desired final shape for the structure 12.
  • Each of the load bars is constructed so that it has at least one web or flange disposed in a vertical plane since such a web will effectively resist the seating loads to which the bar is subjected.
  • the load bars 26 and 28 are identical and are disposed in a spaced parallel relation.
  • the load bar 26 is a channel shaped bar as seen in FIG. 4, with a channel base 34 and side webs or flanges 36 and 38.
  • the load bar 26 is shaped so that it has a base portion 40 and a back portion 42 which form an obtuse angle at their juncture.
  • the upper ends 29 of bars 26 and 28 are located near the upper end 31 of the seat back 22. Because of the side webs 36 and 38, the load bar resiliently resists flexing at the juncture when subjected to seating loads, such as when the occupant leans back against the back 22 of the seating structure 12.
  • the arm-base load bar 30 is likewise channel shaped.
  • the load bar 30 is shaped so that it has an intermediate portion 46 embedded in the foam base 16 and end portions 48 which project upwardly into the foam arms 18.
  • the portions-46 of the load bar 30 is connected to the load bars 26 and 28 at right angles.
  • the bar portions 48 maintain the arms 18 in desired positions with respect to the base 16 even-when arms 18 are subjected to heavy loads such as when the chair occupant is getting out of the chair.
  • Wires 32 are connected to the load bars 26, 28 and 30 by any suitable means so as to interconnect the load bars 26, 28 and 30 and to provide secondary interstitial support to the foam body 13.
  • the foam body 13 is molded over the frame 24 (FIG. 2).
  • a space 50 is provided beneath the seat 16 and a base plate 52 is located therein and secured to the load bars 26 and 28.
  • the base plate 52 mounts the leg assembly 14 to the frame 24.
  • a seat structure which includes an integral foam body having a base and upright arm and back supports which extend upwardly from said base, a frame embedded in said body comprising a first load bar disposed within said base and extending upwardly into said back support to a position near the upper end thereof, said load bar extending front to rear in said base from a position adjacent the front edge of the base, said load bar having at least one perpendicularly extending flange portion extending substantially the full length thereof to resist seating loads acting conjunctively on said back support and said base and disposed in a first upright plane, a second load bar disposed within said base and having end sections which project upwardly into said arm supports, said second load bar being secured to said first load bar and having at least one perpendicularly extending flange portion extending substantially the full length thereof to resist seating loads acting conjunctively on said arm supports and said base and disposed in a second upright plane which is substantially perpendicular to said first upright plane.

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  • Chair Legs, Seat Parts, And Backrests (AREA)
US00246826A 1972-04-24 1972-04-24 Seating structure with foam embedded reinforcement frame Expired - Lifetime US3768864A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US24682672A 1972-04-24 1972-04-24

Publications (1)

Publication Number Publication Date
US3768864A true US3768864A (en) 1973-10-30

Family

ID=22932385

Family Applications (1)

Application Number Title Priority Date Filing Date
US00246826A Expired - Lifetime US3768864A (en) 1972-04-24 1972-04-24 Seating structure with foam embedded reinforcement frame

Country Status (3)

Country Link
US (1) US3768864A (enExample)
JP (1) JPS4922241A (enExample)
CA (1) CA960789A (enExample)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3861741A (en) * 1973-09-28 1975-01-21 Robert M Kaufman Auxiliary backrest
US3947068A (en) * 1974-04-22 1976-03-30 Steelcase Inc. Chair
US4123105A (en) * 1975-10-29 1978-10-31 Interroyal Corporation Chair construction
US5695253A (en) * 1996-08-28 1997-12-09 Jenkins; Steven Robert Article of furniture
ITUB20161022A1 (it) * 2016-02-24 2017-08-24 Torre Srl Scocca per sedute e relativo metodo
US10561245B2 (en) * 2015-06-29 2020-02-18 Ipic-Gold Class Entertainment, Llc Theater seating
US20230339612A1 (en) * 2020-07-17 2023-10-26 Airbus Atlantic Frame for an aircraft seat consisting of planar cut and assembled parts and manufacturing method thereof
USD1011062S1 (en) * 2023-09-27 2024-01-16 Xinting Zhu Chair

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1721601A (en) * 1927-11-14 1929-07-23 Franklin P Smith Metal bench
US1767099A (en) * 1928-03-30 1930-06-24 White Sewing Machine Corp Bracket
US2169197A (en) * 1935-12-09 1939-08-08 Reynolds Spring Co Seat structure
US2838100A (en) * 1955-12-12 1958-06-10 John W Follows Chair, sofa, or similar article
US3083056A (en) * 1960-12-21 1963-03-26 Schnadig Corp Upholstered seat article
US3139307A (en) * 1961-11-16 1964-06-30 Hawley Products Co Article of seating

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1721601A (en) * 1927-11-14 1929-07-23 Franklin P Smith Metal bench
US1767099A (en) * 1928-03-30 1930-06-24 White Sewing Machine Corp Bracket
US2169197A (en) * 1935-12-09 1939-08-08 Reynolds Spring Co Seat structure
US2838100A (en) * 1955-12-12 1958-06-10 John W Follows Chair, sofa, or similar article
US3083056A (en) * 1960-12-21 1963-03-26 Schnadig Corp Upholstered seat article
US3139307A (en) * 1961-11-16 1964-06-30 Hawley Products Co Article of seating

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3861741A (en) * 1973-09-28 1975-01-21 Robert M Kaufman Auxiliary backrest
US3947068A (en) * 1974-04-22 1976-03-30 Steelcase Inc. Chair
US4123105A (en) * 1975-10-29 1978-10-31 Interroyal Corporation Chair construction
US5695253A (en) * 1996-08-28 1997-12-09 Jenkins; Steven Robert Article of furniture
US10561245B2 (en) * 2015-06-29 2020-02-18 Ipic-Gold Class Entertainment, Llc Theater seating
ITUB20161022A1 (it) * 2016-02-24 2017-08-24 Torre Srl Scocca per sedute e relativo metodo
WO2017145114A1 (en) * 2016-02-24 2017-08-31 Torre S.R.L. Shell for seats, and corresponding method
US20190059592A1 (en) * 2016-02-24 2019-02-28 Torre S.R.L. Shell for seats, and corresponding method
US20230339612A1 (en) * 2020-07-17 2023-10-26 Airbus Atlantic Frame for an aircraft seat consisting of planar cut and assembled parts and manufacturing method thereof
USD1011062S1 (en) * 2023-09-27 2024-01-16 Xinting Zhu Chair

Also Published As

Publication number Publication date
CA960789A (en) 1975-01-07
JPS4922241A (enExample) 1974-02-27

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Legal Events

Date Code Title Description
AS Assignment

Owner name: HOOVER GROUP, INC., A CORP. OF DE.

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:HOOVER UNIVERSAL, INC.;REEL/FRAME:004502/0191

Effective date: 19851031

Owner name: FIRST NATIONAL BANK OF BOSTON, THE

Free format text: SECURITY INTEREST;ASSIGNOR:HOOVER GROUP, INC., A CORP. OF DE.;REEL/FRAME:004492/0790

Effective date: 19851107

AS Assignment

Owner name: HOOVER GROUP, INC.

Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:FIRST NATIONAL BANK OF BOSTON, THE;REEL/FRAME:005580/0097

Effective date: 19900531