US3237214A - Cushion supporting members - Google Patents

Cushion supporting members Download PDF

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Publication number
US3237214A
US3237214A US380307A US38030764A US3237214A US 3237214 A US3237214 A US 3237214A US 380307 A US380307 A US 380307A US 38030764 A US38030764 A US 38030764A US 3237214 A US3237214 A US 3237214A
Authority
US
United States
Prior art keywords
platform
tongues
clips
rubber
mould
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
US380307A
Other languages
English (en)
Inventor
Grimshaw Norman
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.)
Vitafoam Ltd
Original Assignee
Vitafoam 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 GB18115/63A priority Critical patent/GB1010975A/en
Priority to BE649199A priority patent/BE649199A/fr
Priority to FR978618A priority patent/FR1399097A/fr
Priority to NL6407050A priority patent/NL6407050A/xx
Application filed by Vitafoam Ltd filed Critical Vitafoam Ltd
Priority to US380307A priority patent/US3237214A/en
Priority to DE19641429446 priority patent/DE1429446A1/de
Application granted granted Critical
Publication of US3237214A publication Critical patent/US3237214A/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
    • 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
    • A47C7/28—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
    • 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
    • Y10S297/03—Pneumatic

Definitions

  • This invention concerns cushion supporting members, which term is to be construed as meaning a member or members capable of being attached to the framework of a piece of upholstered furniture to support a resilient pad, cushion, seat back or seat squab.
  • the term upholstered furniture is to be construed as including furniture for road, sea, rail and aircraft both private and commercial, such furnture being used for sitting, lying or reclining upon.
  • the manner in which cushions have been supported in the past has varied considerably, and recently it has been found that rubber or like material is particularly useful for the purpose. Due to the variety of types of cushion to be supported, however, it is found that in some instances straps are the most acceptable, whilst in other instances moulded rubber or like material straps do not enable the cushion to be supported exactly as desired and as a result it has been proposed to provide a unitary platform of material upon which the cushion can be located.
  • the cushions used in vehicle seating vary in size, shape and use, namely some cushions form seat squabs whilst others form back rests.
  • the seats themselves may be bench type, individual or bucket type or may consist of a bench type cushion with individually adjustable backs or squabs.
  • the support given to the cushion is unevenly distributed, and localised relatively large non-supported areas exist which tend, after a period of use, to result in deformation or tearing of the cushion.
  • a cushion support moulded from a material which will flow when subjected to heat and pressure and will be resilient when cool includes a plurality of spaced apart areas including nonresilient moulded in attachment members located in positions adapted for attachment of the support to a framework, at least the spaces between the members being provided with an integral peripheral web portion of said moulded material whereby when the support is attached to the framework a continuous and completely inapertured surface is formed.
  • the invention also includes the method for producing the moulding including the steps of pre-positioning the attachment members in one part of a two part mould, placing in the mould a piece of the said material whose dimensions are less than the total extent of the mould, closing the mould and subjecting it to heat and pressure to cause the material to fiow so as completely to fill the mould and to cure and encase the whole or part of the attachment members and thereafter removing from the mould the resilient cushion support so formed.
  • attachment members are initially in the form of open U or V shaped clips, which latter, upon closing the mould become deformed to bring the free edges thereof into close proximity with each other.
  • attachment members are in the form of rod-like elements, the mould in this case being formed so that the elements each become substantially embedded in a thickened portion of the moulding.
  • the mouldable material used is uncured rubber compound which under the influence of heat and pressure flows and becomes vulcanised and resilient.
  • FIG. 1 is an underneath perspective view of one form of cushion supporting platform
  • FIG. 2 is a section on the line II-II of FIG. 1,
  • FIG. 3 is a section on the line IIIIII of FIG. 1,
  • FIG. 4 is a section corresponding to FIG. 2 of a modification
  • FIG. 5 is a section corresponding to FIG. 3 of the modification of FIG. 4,
  • FIG. 6 is a perspective underneath view of part of a further modification
  • FIG. 7 is a section on the line VII-VII of FIG. 6.
  • a platform is produced having a major portion 10 of substantially rectangular shape provided with outwardly projecting spaced-apart tongues 11 located, for example, at its corners and along three of its sides.
  • the thickness of the major portion 10 of the platform is constant except for the end regions of the tongues 11 which contain clips 12 and which may be somewhat thicker.
  • the clips 12 are metallic and are preferably made from brass and of initially open U or V shape.
  • the clip in the finished product has its arms substantially closed in their free end regions.
  • a wedge shaped piece of rubber 13, integral with the major portion 10 of the platform is enclosed by the clips 12 thus providing an extremely strong mechanical bond between the metal and the rubber.
  • the bond strength is further increased by providing holes 14 in the arms of the clips 12.
  • holes are, in practice substantially filled with rubber which has, during moulding, flowed around the clips 12 substantially to encase them.
  • the portions of the platform between adjacent tongues 11, are provided with a web 15 of rubber which is thinner than the major portion 10.
  • the extreme periphery of the platform is provided with a bead 16 to reduce the risk of tearing the rubber when the platform is in use.
  • the periphery of the major portion 10 (i.e. the thicker portion) of the platform may also be provided with a peripheral bead 17.
  • a two part mould is used.
  • One part of the mould namely the base, is provided with a rectangular depression having principally two depths, one corresponding to the shape of the major portion of the platform and the tongues, and one corresponding to the portions between the tongues thereby to enable the multiple thickness platform to be produced.
  • the depth of the depression is further increased and locating pegs (corresponding in position to the holes in the clips) are provided.
  • a groove or grooves for forming the bead or beads is also provided.
  • a piece of uncured rubber compound is placed in the base of a mould.
  • the size of the uncured compound is less than the size of the mould depression.
  • Open U or V shaped clips 12 are located on the pegs in the mould, which latter are a free fit in the holes in the clips.
  • the mould lid is closed and heat and pressure are applied to cause the rubber compound to flow, completely to fill the mould depression and substantially to encase the clips and also to vulcanise the rubber.
  • the open arms of the clips 12 are brought into closer proximity with each other in their end regions when the mould lid is closed and thus the rubber as it flows into and around the clips 12 forms, between the arms of the clips 12, the wedge 14 of rubber thus providing great mechanical bond strength.
  • rod-like elements 18 these latter during moulding becoming substantially embedded in the rubber.
  • the mould base is modified to provide slots in which the rods 18 are located and supported by upstanding pegs.
  • the slots during moulding become filled with rubber and if necessary can be partially filled with pieces of uncured rubber prior to moulding.
  • the end regions of the tongues 11 thus have a thick region 19 which encases the rod 18 except for a substantially centrally disposed central area 20 whereby a hook may be attached to the rod 18.
  • FIGS. 6 and 7 the mould is substantially identical to that first referred to above, but in this case the depression is enlarged so that the tongues 11 formed around the periphery of the major portion 10 of the platform are inset from the periphery of the platform as a whole.
  • the bead 17 extending between the tongues may be dispensed with and a peripheralbead 16 provided around the whole of the extreme periphery of the platform.
  • any one of the platforms above referred to may be attached to a framework by securing to the clips 12 or the rods 18 an attachment hook which latter is then attached to the framework in such a manner as to cause the whole platform to be under tension.
  • the webs 15 between the tongues 11 are of such a size as to ensure that no appreciable space exists between the platform and the framework so that deformation and permanent set of an upholstery pad is prevented.
  • the web effectively forms a skirt around the thicker portion 10 of the platform, this skirt being of such a size that when the platform is in use it overlies the framework around the whole of its periphery, and against no chance of deformation of an upholstery pad exists.
  • the platform is formed in a single operation.
  • the fact that the clips or rods become, in effect, integral with the rubber ensures that very high loading can be applied to the platform without danger of fracture or breakage at the bond. This is also assisted by the fact that by correctly spacing the clips or rods the tension applied by loading the platform is evenly distributed, to the clips or rods and thus failure due to excessive loading at one of the attachment points is eliminated.
  • the shape and size of the platform can be made to suit any specified requirements and the number and spacing of attachment clips or rods used is dependent upon the requirements of a user of the platform.
  • a resilient, one-piece, rubber cushion support comprising, a v generally rectangular, flat, center portion of substantially uniform thickness, a plurality of tongues extending outwardly fro-m said portion at spaced locations along the sides of said portion, metal attachment means moulded within said tongues, and a web of thinner dimension than said center portion and extending around the periphery of said center portion and extending outwardly at least to the same extent as said tongues and filling the space between said tongues to form a continuous and flat uppper surface for the entire support.
  • a support as defined in claim 1 further characterized in that said web has a reinforcing bead of thicker dimension than said web around the periphery thereof.
  • a support as defined in claim 1 including a bead of thicker dimension than said central portion and located on one side of said support and at least at a portion of the periphery of said central portion.

Landscapes

  • Superstructure Of Vehicle (AREA)
  • Vibration Dampers (AREA)
  • Springs (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
US380307A 1963-05-08 1964-07-06 Cushion supporting members Expired - Lifetime US3237214A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB18115/63A GB1010975A (en) 1963-05-08 1963-05-08 Improvements in or relating to cushion supporting members
BE649199A BE649199A (fr) 1963-05-08 1964-06-12 Perfectionnements aux organes de support des coussins.
FR978618A FR1399097A (fr) 1963-05-08 1964-06-17 Perfectionnements aux éléments-supports de coussions
NL6407050A NL6407050A (fr) 1963-05-08 1964-06-19
US380307A US3237214A (en) 1963-05-08 1964-07-06 Cushion supporting members
DE19641429446 DE1429446A1 (de) 1963-05-08 1964-09-28 Polstertraeger und Verfahren zu ihrer Herstellung

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
GB18115/63A GB1010975A (en) 1963-05-08 1963-05-08 Improvements in or relating to cushion supporting members
BE649199A BE649199A (fr) 1963-05-08 1964-06-12 Perfectionnements aux organes de support des coussins.
FR978618A FR1399097A (fr) 1963-05-08 1964-06-17 Perfectionnements aux éléments-supports de coussions
NL6407050A NL6407050A (fr) 1963-05-08 1964-06-19
US380307A US3237214A (en) 1963-05-08 1964-07-06 Cushion supporting members
DEV0026871 1964-09-28

Publications (1)

Publication Number Publication Date
US3237214A true US3237214A (en) 1966-03-01

Family

ID=46721514

Family Applications (1)

Application Number Title Priority Date Filing Date
US380307A Expired - Lifetime US3237214A (en) 1963-05-08 1964-07-06 Cushion supporting members

Country Status (6)

Country Link
US (1) US3237214A (fr)
BE (1) BE649199A (fr)
DE (1) DE1429446A1 (fr)
FR (1) FR1399097A (fr)
GB (1) GB1010975A (fr)
NL (1) NL6407050A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3291530A (en) * 1964-09-16 1966-12-13 Vitafoam Ltd Resilient cushion and support therefor
US3328085A (en) * 1966-02-09 1967-06-27 Gen Tire & Rubber Co Seat suspension

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1214805A (en) * 1915-03-03 1917-02-06 Morris Lowy Bed-spring.
US1347413A (en) * 1920-02-26 1920-07-20 Peter C Schaefer Auto-porch bed
FR1328801A (fr) * 1961-06-22 1963-05-31 Vitafoam Ltd Perfectionnements aux meubles rembourrés
US3113326A (en) * 1961-02-17 1963-12-10 George C Hyde Protective pad
US3179469A (en) * 1963-03-18 1965-04-20 Acushnet Process Company Elastomer furniture support

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1214805A (en) * 1915-03-03 1917-02-06 Morris Lowy Bed-spring.
US1347413A (en) * 1920-02-26 1920-07-20 Peter C Schaefer Auto-porch bed
US3113326A (en) * 1961-02-17 1963-12-10 George C Hyde Protective pad
FR1328801A (fr) * 1961-06-22 1963-05-31 Vitafoam Ltd Perfectionnements aux meubles rembourrés
US3179469A (en) * 1963-03-18 1965-04-20 Acushnet Process Company Elastomer furniture support

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3291530A (en) * 1964-09-16 1966-12-13 Vitafoam Ltd Resilient cushion and support therefor
US3328085A (en) * 1966-02-09 1967-06-27 Gen Tire & Rubber Co Seat suspension

Also Published As

Publication number Publication date
GB1010975A (en) 1965-11-24
BE649199A (fr) 1964-10-01
FR1399097A (fr) 1965-05-14
DE1429446A1 (de) 1969-01-30
NL6407050A (fr) 1965-12-20

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