US3576040A - Spring cushion structures - Google Patents
Spring cushion structures Download PDFInfo
- Publication number
- US3576040A US3576040A US769210A US3576040DA US3576040A US 3576040 A US3576040 A US 3576040A US 769210 A US769210 A US 769210A US 3576040D A US3576040D A US 3576040DA US 3576040 A US3576040 A US 3576040A
- Authority
- US
- United States
- Prior art keywords
- net
- spring
- strands
- adhesive
- foundation
- 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
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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
- A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
- A47C27/04—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with spring inlays
- A47C27/045—Attachment of spring inlays to coverings; Use of stiffening sheets, lattices or grids in, on, or under spring inlays
- A47C27/0453—Attachment of spring inlays to outer layers
Definitions
- ABSTRACT An adhesive plastic net is used over a spring foundation both as a spring insulator and as a spring positioner, being adhered to the springs by the adhesive material of the net itself.
- One object of this invention is to provide a plastic net spring insulator of adhesive material thus eliminating the added adhesive needed and the added application of adhesive.
- Another object of this invention is to replace two materials (a spring insulator and an adhesive) with a single-adhesive net structure.
- FIG. 1 is a view of a portion of the net of this invention
- FIG. 2 is a cross-sectional view of a portion of a spring structure
- FIG. 3 is an enlarged view taken along the lines 3-3 of FIG. 2.
- a plastic net spring insulator which may be adhered to a felted-fibrous, matcushioning material. This combination product is then placed over the face of a spring foundation to provide a combination spring insulator and cushioning mat for a cushion structure such as loose cushions, upholstered furniture, mattresses, furniture decks, and the like.
- the plastic net spring insulator either alone or in combination with an adhered felted fibrouscushioning mat is hog ringed to the periphery of a spring foundation.
- One way of adhering such spring insulator nets to the underlying spring foundation is by dipping the spring coils in a hot-melt material which can then be heat-activated by an induction heating mechanism or other heating means when in place against the net. This causes the net to be adhered to the spring foundation.
- Another known method of adhering the net spring insulator to the spring foundation is to apply strips of hot-melt adhesive to the combination cushioning materialspring insulator net in long strips and then in a continuous manner applying such combination to the spring foundation.
- the metal wires of the spring foundation are heated by an electrical heat induction mechanism and the hot wires of the spring foundation cause the strips of adhesive to flow sufiiciently to secure the cushioning material and the spring insulator net to the spring foundation.
- both the adhesion function of the spring insulator to the spring foundation and the spring insulator function may be accomplished with a single unitary structure.
- the adhesive plastic net 10 of the invention comprises a plurality of longitudinal strands I2 and a plurality of transverse strands 14.
- the net 10 has larger strands l2 and relatively smaller strands 14 with the strands 12 being lesser in number than the strands 14.
- the preferred form has about one strand 12 for each three-fourths inch whereas there are about four strands 14 per inch.
- Such nets are preferably produced by extrusion in accordance with the methods and apparatuses disclosed in U.S. Pat. No. 3,252,181, or as disclosed in U.S. Pat. Nos. 2,919,467 and 3,051,987.
- Such plastic nets may be extruded with any predetermined number of strands in either direction and with varying sizes of strands.
- strand 12 is preferably considerably larger in diameter than is strand 14.
- the strands l2 and the strands 14 are relatively planar on one side, (the side toward the viewer in FIG. 1) and that the strands 12 project upwardly higher than the strands 14 on the other side. This is better shown in FIGS. 2 and 3.
- the flexible plastic adhesive net 10 may be formed from any one of a number of extrudable plastic materials which are suitably adhesive to metal and notably to spring metal when heated as, for example, by being brought into contact with hot springs.
- extrudable plastic materials include various plastic resins including certain polyesters, and in particular, certain ionomers such as Surlyn-A as manufactured by E. I. du Pont de Nemours & Co., Inc. Such material is readily extrudable and when heated by contact with the hot wire spring foundation will flow to cause it to adhere to the wire of the springs.
- FIG. 2 shows a portion of a completed construction of a cushion or furniture deck incorporating coil springs 16 although sinuous S-springs could equally well be used.
- the wires 18 of the top convolutions of the coils 16 in combination present a substantially flat or slightly curved face to which the spring insulator net is to be applied.
- the springs 16 are held in selected arrangement by any suitable holding mechanism and are then heated by any suitable means such as an electric induction heater.
- the plastic adhesive net insulator 10 is then laid over the face of the foundation. The heat of the wire springs causes the adhesive material of the net 10 to flow somewhat and adhere as shown at 20 to the spring wire 18 of the springs 16.
- the adhesive material 20 flows from the net 10 primarily from the strands 12, although if sufficient heat and pressure is used, some of the material may flow from the smaller strands 14. It is preferred that the strands 14 not be disturbed by the heat induction step of the application method.
- the specific desired construction of the cushion, mattress, or deck will determine the particular materials used on top of the spring insulator 10. In some applications the mat 22 may not be used and in others it may be secured to the plastic adhesive net 10 before the net 10 is applied to the spring foundation.
- the plastic adhesive net 10 of this invention is more convenient to use and replaces two prior materials, i.e., the spring insulator net and the requisite adhesive, with a single unitary plastic adhesive net structure.
- the adhesion with the material of the net itself as described herein is referred to as self-bonded.
- induction heating has been referred to, it will be obvious that other heating means may be employed such as hot rolls, localized flame applicationsoven heating, and others.
- plastic adhesive net of the extruded variety as produced by the methods and apparatuses disclosed in U.S. Pat. Nos. 3,252,181 and 3,349,434 are preferred because of the right angular arrangement of the sets of strands (with accompanying rectangular openings) and the integral joints provided by such methods and apparatuses (as illustrated by the net 10 of H68. 1, 2, and 3), plastic adhesive net produced by other extrusion methods and apparatuses such as those disclosed in U.S. Pat. Nos. 2,919,467 and 3,051,987 may also be used.
- the latter methods and apparatuses also provide a net with an integral joint but the sets of strands of the net are at other than right angles and thus have diamond, hexagonal or other shaped openings.
- adhesive plastic nets of woven rather than the extruded variety, although the extruded right angular nets are generally to be preferred.
- a spring structure comprising a resilient metal wire spring foundation presenting a face having relatively large open spaces between a multiplicity of relatively small wires in said face, an open mesh plastic spring insulator net over said face, said net having a plurality of sets of flexible strands, each of said sets having the strands thereof substantially parallel, one of said sets of strands being arranged at an angle to a second set of said strands, at least a portion of said net being an adhesive, said net being secured to the wires of said foundation at points of contact therewith by the adhesive material of said net whereby said net is self-bonded to said foundation and serves as a spring insulator for said foundation.
Landscapes
- Mattresses And Other Support Structures For Chairs And Beds (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims (4)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US76921068A | 1968-10-21 | 1968-10-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3576040A true US3576040A (en) | 1971-04-27 |
Family
ID=25084798
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US769210A Expired - Lifetime US3576040A (en) | 1968-10-21 | 1968-10-21 | Spring cushion structures |
Country Status (1)
Country | Link |
---|---|
US (1) | US3576040A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4092749A (en) * | 1977-01-06 | 1978-06-06 | Sealy, Incorporated | Mattress spring unit construction |
US4432109A (en) * | 1982-01-25 | 1984-02-21 | Conwed Corporation | Plastic support platform for mattress structure |
US4476595A (en) * | 1981-08-27 | 1984-10-16 | France Bed Co., Ltd. | Mattress for use on a bed and settee |
US6298510B1 (en) | 1999-09-15 | 2001-10-09 | L&P Property Management Company | Roll packed bedding products |
US6467239B2 (en) | 1999-09-15 | 2002-10-22 | L&P Property Management Company | Method of packaging spring units |
WO2005007562A1 (en) * | 2003-07-16 | 2005-01-27 | Panagiotis Anagnostopoulos | Method, product and system for the production of mattresses consisting of independent and precompressed spring cores |
US7117655B2 (en) | 1999-09-15 | 2006-10-10 | L&P Property Management Company | Method of applying at least one web of insulator material to multiple spring assemblies |
US20060267260A1 (en) * | 2003-03-17 | 2006-11-30 | Stoewe Stefan | Device for receiving functional elements |
US20110227353A1 (en) * | 2010-03-16 | 2011-09-22 | Sabic Innovative Plastics Ip B.V. | Plastically deformable spring energy management systems and methods for making and using the same |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3184767A (en) * | 1962-12-07 | 1965-05-25 | Hoover Ball & Bearing Co | Pad for covering contoured cushion spring structure |
US3273179A (en) * | 1963-03-19 | 1966-09-20 | Hoover Ball & Bearing Co | Insulator for foam pads and method of making the same |
US3315283A (en) * | 1965-10-18 | 1967-04-25 | Wood Conversion Co | Spring-cushion structures and cushioning material therefor |
-
1968
- 1968-10-21 US US769210A patent/US3576040A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3184767A (en) * | 1962-12-07 | 1965-05-25 | Hoover Ball & Bearing Co | Pad for covering contoured cushion spring structure |
US3273179A (en) * | 1963-03-19 | 1966-09-20 | Hoover Ball & Bearing Co | Insulator for foam pads and method of making the same |
US3315283A (en) * | 1965-10-18 | 1967-04-25 | Wood Conversion Co | Spring-cushion structures and cushioning material therefor |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4092749A (en) * | 1977-01-06 | 1978-06-06 | Sealy, Incorporated | Mattress spring unit construction |
US4476595A (en) * | 1981-08-27 | 1984-10-16 | France Bed Co., Ltd. | Mattress for use on a bed and settee |
US4432109A (en) * | 1982-01-25 | 1984-02-21 | Conwed Corporation | Plastic support platform for mattress structure |
US7117655B2 (en) | 1999-09-15 | 2006-10-10 | L&P Property Management Company | Method of applying at least one web of insulator material to multiple spring assemblies |
US6298510B1 (en) | 1999-09-15 | 2001-10-09 | L&P Property Management Company | Roll packed bedding products |
US6357209B1 (en) | 1999-09-15 | 2002-03-19 | L&P Property Management Company | Method of packaging springs |
US6467239B2 (en) | 1999-09-15 | 2002-10-22 | L&P Property Management Company | Method of packaging spring units |
US7695062B2 (en) * | 2003-03-17 | 2010-04-13 | W.E.T. Automotive Systems Ag | Device for receiving functional elements |
US20060267260A1 (en) * | 2003-03-17 | 2006-11-30 | Stoewe Stefan | Device for receiving functional elements |
WO2005007562A1 (en) * | 2003-07-16 | 2005-01-27 | Panagiotis Anagnostopoulos | Method, product and system for the production of mattresses consisting of independent and precompressed spring cores |
US20110227353A1 (en) * | 2010-03-16 | 2011-09-22 | Sabic Innovative Plastics Ip B.V. | Plastically deformable spring energy management systems and methods for making and using the same |
US8182023B2 (en) | 2010-03-16 | 2012-05-22 | Sabic Innovative Plastics Ip B.V. | Plastically deformable spring energy management systems and methods for making and using the same |
US8616618B2 (en) | 2010-03-16 | 2013-12-31 | Sabic Innovative Plastics Ip B.V. | Methods absorbing energy using plastically deformable coil energy absorber |
US8840171B2 (en) | 2010-03-16 | 2014-09-23 | Sabic Innovative Plastics Ip B.V. | Plastically deformable coil energy absorber systems |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: LEUCADIA, INC., A CORP. OF NEW YORK,NEW YORK Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CONWED CORPORATION, A CORP. OF DE.;REEL/FRAME:004660/0016 Effective date: 19861204 Owner name: LEUCADIA, INC., A CORP OF NY.,NEW YORK Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CONWED CORPORATION;REEL/FRAME:004655/0504 Effective date: 19861204 Owner name: LEUCADIA, INC., 315 PARK AVENUE SOUTH, NEW YORK, N Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CONWED CORPORATION, A CORP. OF DE.;REEL/FRAME:004660/0016 Effective date: 19861204 Owner name: LEUCADIA, INC., 315 PARK AVENUE SOUTH, NEW YORK, N Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CONWED CORPORATION;REEL/FRAME:004655/0504 Effective date: 19861204 |