US3688320A - Spring units for furniture - Google Patents

Spring units for furniture Download PDF

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Publication number
US3688320A
US3688320A US107705A US10770571A US3688320A US 3688320 A US3688320 A US 3688320A US 107705 A US107705 A US 107705A US 10770571 A US10770571 A US 10770571A US 3688320 A US3688320 A US 3688320A
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US
United States
Prior art keywords
springs
channel elements
furniture
spring
disposed
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
US107705A
Inventor
Roderick James Hartley
George Charters
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.)
SILIENTNIGHT Ltd
Original Assignee
SILIENTNIGHT 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 GB32877/69A priority Critical patent/GB1279849A/en
Priority to SE16902/70A priority patent/SE361124B/xx
Priority to NO04804/70A priority patent/NO129980B/no
Priority to AT1133370A priority patent/AT308317B/en
Priority to FR7047612A priority patent/FR2118420A5/fr
Priority to AU23502/70A priority patent/AU455329B2/en
Priority to LU62274D priority patent/LU62274A1/xx
Priority to NL7018782.A priority patent/NL165641C/en
Priority to CH1933070A priority patent/CH521737A/en
Priority to BE761077A priority patent/BE761077A/en
Application filed by SILIENTNIGHT Ltd filed Critical SILIENTNIGHT Ltd
Priority to US107705A priority patent/US3688320A/en
Application granted granted Critical
Publication of US3688320A publication Critical patent/US3688320A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A47C23/00—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C23/00—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases
    • A47C23/007—Edge stiffeners
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C23/00—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases
    • A47C23/04—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using springs in compression, e.g. coiled
    • A47C23/05—Frames therefor; Connecting the springs to the frame ; Interconnection of springs, e.g. in spring units
    • 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
    • A47C27/06—Spring inlays
    • 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
    • A47C27/06—Spring inlays
    • A47C27/066—Edge stiffeners
    • 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
    • A47C27/06—Spring inlays
    • A47C27/07—Attaching, or interconnecting of, springs in spring inlays

Definitions

  • a spring unit for an article of furniture comprising a plurality of interconnected furniture springs having their spring axes parallel, the perimeter of the unit at opposite ends of the springs being defined by strips adapted to accept and locate the end coils of said springs.
  • FIG. 1 is a perspective view of part of a spring unit in accordance with the invention
  • FIG. 2 is a perspective view of a first embodiment of securing strip for uniting the spring ends at the perimeter of the unit;
  • FIG. 3 is a perspective view of a second embodiment of securing strip and also illustrates the clamping clip
  • FIG. 4 is a perspective view of a third embodiment of securing strip.
  • a spring unit 1, for example for a seat is of substantially rectangular box shape and comprises four parallel rows each consisting of five furniture springs 2 (only three are shown in FIG. 1 for the sake of simplicity).
  • the springs 2 are disposed vertically and adjoining springs in each row are interconnected in conventional fashion at their upper and lower ends by means of four upper and four lower coiled wires (not shown) crossing the rows.
  • the perimeter of the unit at opposite ends of the springs is defined by strips 3 and there are provided eight such strips to accept and locate the end coils of the boundary springs along the eight edges of the box-shaped unit, each such strip being made of synthetic plastics material extruded in U, V, L, or other section which permits said end coils to be received between two webs of the strip.
  • the coils may be held in position along the strips by various means.
  • FIG. 2 a first embodiment of the invention (FIG. 2) the coil-receiving webs 3a, 3b of the strips 3 are welded together (as at 4) at spaced locations therealong to prevent disengagement of the strips 3 f th s 2.
  • the strips 3 are secured to the coils by metal clips 5 and, in a third embodiment of the invention (FIG. 4) securement is by 'means of wire 6 coiled in a helix around the full length of each strip 3 after the coils have been located therein.
  • the strips are so formed that the webs thereof exert a clamping effect on the coils received therebetween and no additional securing means are required.
  • a spring unit for use in an article of furniture comprising an array of helical springs disposed on spaced, vertical, parallel axes, the upper and lower helices of said springs normally being disposed in the same upper and lower plane, the improvement consisting of elongated channel elements having opposed upper and lower integral webs normally urged together, said channel element webs embracingly enagaging in tangential relation adjacent upper and lower helices whereby said springs are retained in operative relation as a unit.

Landscapes

  • Springs (AREA)
  • Seats For Vehicles (AREA)
  • Clamps And Clips (AREA)

Abstract

A spring unit for furniture in which a plurality of helical springs are disposed on parallel axes in which adjacent upper and lower helices are integrated by channel elements having opposed legs of the spring into tangential, gripping relation to the helices; the channel elements having free ends isolating the spring effect, and in which the channel elements are produced from an extruded plastic material.

Description

United States Patent Hartley et a1.
[ Sept. 5, 1972 SPRING UNITS FOR FURNITURE Inventors: Roderick James Hartley, 1 Fieldhead Drive, Cross Hills, near Keighley; George Charters, 6 Wood View Embsay, Skipton, both of England V Assignee: Silientnight Limited, Colne, Lancashire, England Filed: Jan. 19, 1971 Appl. No.: 107,705
US. Cl. ..5/260, 5/267, 5/270 Int. Cl.....A47c 23/04, A47c 25/00, A47c 25/00 Field of Search ..5/254, 259-267,
[56] References Cited UNITED STATES PATENTS 1,795,881 3/1931 Murray, Sr ..5/270 X 2,635 ,25 8 4/1953 Anspacher ..5/260 3,358,725 12/ 1967 Bussard et a1. ..248/345.l
Primary ExaminerCasmir A. Nunberg Attorney-Holman & Stern ABSTRACT A spring unit for furniture in which a plurality of helical springs are disposed on parallel axes in which adjacent upper and lower helices are integrated by channel elements having opposed legs of the spring into tangential, gripping relation to the helices; the channel elements having free ends isolating the spring effect, and in which the channel elements are produced from an extruded plastic material.
3 Claims, 4 Drawing Figures SPRING UNITS FOR FURNITURE This invention is concerned with improvements in or relating to spring units for furniture.
It is well known in the manufacture of articles of furniture such as beds, divans, couches, settees, armchairs and the like to utilize a prefabricated spring unit comprising a plurality of furniture springs which are interconnected with the spring axes parallel, into a dimensionally stable unit with the aid of, inter alia wire perimeter frames one of which is secured to the outer coil portion of each boundary spring at the one end thereof and a second of which is likewise secured at the other end of each boundary spring, securement of the frames to the spring coils being effected by suitable fasteners.
The production of said perimeter frames requires secialized forming machinery which together with the large number of fasteners required serves to increase the production costs of the spring units.
It is an object of the present invention to reduce the production costs of spring units for furniture by dispensing with the wire perimeter frames and employing alternative and less costly means for dimensional stabilization of the spring units.
According to the present invention, there is provided a spring unit for an article of furniture, comprising a plurality of interconnected furniture springs having their spring axes parallel, the perimeter of the unit at opposite ends of the springs being defined by strips adapted to accept and locate the end coils of said springs.
Embodiments of the present invention will now be described by way of example only with reference to the accompanying drawings in which:
FIG. 1 is a perspective view of part of a spring unit in accordance with the invention;
FIG. 2 is a perspective view of a first embodiment of securing strip for uniting the spring ends at the perimeter of the unit;
FIG. 3 is a perspective view of a second embodiment of securing strip and also illustrates the clamping clip, and
FIG. 4 is a perspective view of a third embodiment of securing strip.
A spring unit 1, for example for a seat is of substantially rectangular box shape and comprises four parallel rows each consisting of five furniture springs 2 (only three are shown in FIG. 1 for the sake of simplicity).
The springs 2 are disposed vertically and adjoining springs in each row are interconnected in conventional fashion at their upper and lower ends by means of four upper and four lower coiled wires (not shown) crossing the rows.
In accordance with the invention, the perimeter of the unit at opposite ends of the springs is defined by strips 3 and there are provided eight such strips to accept and locate the end coils of the boundary springs along the eight edges of the box-shaped unit, each such strip being made of synthetic plastics material extruded in U, V, L, or other section which permits said end coils to be received between two webs of the strip.
The coils may be held in position along the strips by various means. In a first embodiment of the invention (FIG. 2) the coil-receiving webs 3a, 3b of the strips 3 are welded together (as at 4) at spaced locations therealong to prevent disengagement of the strips 3 f th s 2.
lii a eti r i iambodiment of the invention (FIG. 3)
the strips 3 are secured to the coils by metal clips 5 and, in a third embodiment of the invention (FIG. 4) securement is by 'means of wire 6 coiled in a helix around the full length of each strip 3 after the coils have been located therein.
In a fourth embodiment (not shown) the strips are so formed that the webs thereof exert a clamping effect on the coils received therebetween and no additional securing means are required.
What is claimed is:
1. A spring unit for use in an article of furniture comprising an array of helical springs disposed on spaced, vertical, parallel axes, the upper and lower helices of said springs normally being disposed in the same upper and lower plane, the improvement consisting of elongated channel elements having opposed upper and lower integral webs normally urged together, said channel element webs embracingly enagaging in tangential relation adjacent upper and lower helices whereby said springs are retained in operative relation as a unit.
2. The structure as claimed in claim 1 in which said helical springs are disposed in a rectangular array comprising parallel rows of said springs, said array of springs being assembled by means of eight of said elongated channel elements, said channel elements terminating in free ends.
3. The structure as claimed in claim 1 in which said channel elements comprise an extruded, synthetic plastic material.

Claims (3)

1. A spring unit for use in an article of furniture comprising an array of helical springs disposed on spaced, vertical, parallel axes, the upper and lower helices of said springs normally being disposed in the same upper and lower plane, the improvement consisting of elongated channel elements having opposed upper and lower integral webs normally urged together, said channel element webs embracingly enagaging in tangential relation adjacent upper and lower helices whereby said springs are retained in operative relation as a unit.
2. The structure as claimed in claim 1 in which said helical springs are disposed in a rectangular array comprising parallel rows of said springs, said array of springs being assembled by means of eight of said elongated channel elements, said channel elements terminating in free ends.
3. The structure as claimed in claim 1 in which said channel elements comprise an extruded, synthetic plastic material.
US107705A 1969-06-30 1971-01-19 Spring units for furniture Expired - Lifetime US3688320A (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
GB32877/69A GB1279849A (en) 1969-06-30 1969-06-30 Improvements in or relating to spring units for furniture
SE16902/70A SE361124B (en) 1969-06-30 1970-12-14
NO04804/70A NO129980B (en) 1969-06-30 1970-12-15
AT1133370A AT308317B (en) 1969-06-30 1970-12-16 Spring system for furniture
FR7047612A FR2118420A5 (en) 1969-06-30 1970-12-17
AU23502/70A AU455329B2 (en) 1969-06-30 1970-12-17 Improvements in or relating to spring units for furniture
LU62274D LU62274A1 (en) 1969-06-30 1970-12-18
NL7018782.A NL165641C (en) 1969-06-30 1970-12-24 SPRING UNIT FOR A FURNITURE.
CH1933070A CH521737A (en) 1969-06-30 1970-12-30 Suspension unit
BE761077A BE761077A (en) 1969-06-30 1970-12-30 IMPROVEMENTS IN SPRING PADDINGS FOR FURNITURE.
US107705A US3688320A (en) 1969-06-30 1971-01-19 Spring units for furniture

Applications Claiming Priority (11)

Application Number Priority Date Filing Date Title
GB32877/69A GB1279849A (en) 1969-06-30 1969-06-30 Improvements in or relating to spring units for furniture
SE16902/70A SE361124B (en) 1969-06-30 1970-12-14
NO04804/70A NO129980B (en) 1969-06-30 1970-12-15
AT1133370A AT308317B (en) 1969-06-30 1970-12-16 Spring system for furniture
FR7047612A FR2118420A5 (en) 1969-06-30 1970-12-17
AU23502/70A AU455329B2 (en) 1969-06-30 1970-12-17 Improvements in or relating to spring units for furniture
LU62274 1970-12-18
NL7018782.A NL165641C (en) 1969-06-30 1970-12-24 SPRING UNIT FOR A FURNITURE.
CH1933070A CH521737A (en) 1969-06-30 1970-12-30 Suspension unit
BE761077A BE761077A (en) 1969-06-30 1970-12-30 IMPROVEMENTS IN SPRING PADDINGS FOR FURNITURE.
US107705A US3688320A (en) 1969-06-30 1971-01-19 Spring units for furniture

Publications (1)

Publication Number Publication Date
US3688320A true US3688320A (en) 1972-09-05

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ID=43297000

Family Applications (1)

Application Number Title Priority Date Filing Date
US107705A Expired - Lifetime US3688320A (en) 1969-06-30 1971-01-19 Spring units for furniture

Country Status (11)

Country Link
US (1) US3688320A (en)
AT (1) AT308317B (en)
AU (1) AU455329B2 (en)
BE (1) BE761077A (en)
CH (1) CH521737A (en)
FR (1) FR2118420A5 (en)
GB (1) GB1279849A (en)
LU (1) LU62274A1 (en)
NL (1) NL165641C (en)
NO (1) NO129980B (en)
SE (1) SE361124B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5036705U (en) * 1973-07-31 1975-04-17
US4053956A (en) * 1976-06-24 1977-10-18 Leggett & Platt, Incorporated Spring assembly
US4173047A (en) * 1978-05-08 1979-11-06 Nachman Corporation Tubular border frame for inner spring assemblies
USD774818S1 (en) * 2012-08-22 2016-12-27 L&P Swiss Holding Ag Coil spring

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110099587B (en) * 2016-12-15 2022-10-21 丝涟科技有限责任公司 Open coil spring assembly

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1795881A (en) * 1929-07-15 1931-03-10 William A Murray Spring Compan Spring seat for vehicles
US2635258A (en) * 1947-11-22 1953-04-21 Anspacher Edgar Bed spring marginal rim and connections
US3358725A (en) * 1966-06-29 1967-12-19 P O Box Guard structure for canvas basket rims

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1795881A (en) * 1929-07-15 1931-03-10 William A Murray Spring Compan Spring seat for vehicles
US2635258A (en) * 1947-11-22 1953-04-21 Anspacher Edgar Bed spring marginal rim and connections
US3358725A (en) * 1966-06-29 1967-12-19 P O Box Guard structure for canvas basket rims

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5036705U (en) * 1973-07-31 1975-04-17
US4053956A (en) * 1976-06-24 1977-10-18 Leggett & Platt, Incorporated Spring assembly
US4173047A (en) * 1978-05-08 1979-11-06 Nachman Corporation Tubular border frame for inner spring assemblies
USD774818S1 (en) * 2012-08-22 2016-12-27 L&P Swiss Holding Ag Coil spring

Also Published As

Publication number Publication date
GB1279849A (en) 1972-06-28
AU455329B2 (en) 1974-11-07
NL7018782A (en) 1972-06-27
LU62274A1 (en) 1971-05-14
NL165641C (en) 1981-05-15
AT308317B (en) 1973-06-25
BE761077A (en) 1971-05-27
CH521737A (en) 1972-04-30
AU2350270A (en) 1972-06-22
NL165641B (en) 1980-12-15
SE361124B (en) 1973-10-22
NO129980B (en) 1974-06-24
FR2118420A5 (en) 1972-07-28

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