US3688320A - Spring units for furniture - Google Patents
Spring units for furniture Download PDFInfo
- 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
- Authority
- 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
Links
- 239000000463 material Substances 0.000 claims abstract description 5
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 230000000717 retained effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 239000003000 extruded plastic Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- 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.
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 |
Family
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)
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)
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)
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 |
-
1969
- 1969-06-30 GB GB32877/69A patent/GB1279849A/en not_active Expired
-
1970
- 1970-12-14 SE SE16902/70A patent/SE361124B/xx unknown
- 1970-12-15 NO NO04804/70A patent/NO129980B/no unknown
- 1970-12-16 AT AT1133370A patent/AT308317B/en not_active IP Right Cessation
- 1970-12-17 FR FR7047612A patent/FR2118420A5/fr not_active Expired
- 1970-12-17 AU AU23502/70A patent/AU455329B2/en not_active Expired
- 1970-12-18 LU LU62274D patent/LU62274A1/xx unknown
- 1970-12-24 NL NL7018782.A patent/NL165641C/en not_active IP Right Cessation
- 1970-12-30 BE BE761077A patent/BE761077A/en not_active IP Right Cessation
- 1970-12-30 CH CH1933070A patent/CH521737A/en not_active IP Right Cessation
-
1971
- 1971-01-19 US US107705A patent/US3688320A/en not_active Expired - Lifetime
Patent Citations (3)
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)
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 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA1127780A (en) | Pocketed spring assembly | |
US4907309A (en) | Pocket-spring core mattress | |
US9380883B1 (en) | Pocketed spring assembly comprising perimeter string of springs having rectangular convolutions | |
JP4020168B2 (en) | Internal mattress wall structure interlockable with mattress internal spring assembly | |
US20110314613A1 (en) | Spring Core Having Border Wire With Generally Rectangular Cross-Section | |
AU568877B2 (en) | Spring core for mattress | |
ES277048U (en) | Longitudinally laced continuous coil spring assembly. | |
US3688320A (en) | Spring units for furniture | |
GB1077034A (en) | Production of cushion and mattress constructions | |
US4972536A (en) | Longitudinally laced posturized and/or contoured spring bedding product | |
US3577574A (en) | Spring assembly for furniture and method of manufacture | |
US6829798B2 (en) | Low density pocketed spring assembly and method of manufacture | |
US4760616A (en) | Bedding foundation having sinuous wire springs | |
US4730358A (en) | Sinuous spring module box spring assembly | |
US4369534A (en) | Center reinforced mattress | |
US3355747A (en) | Spring assembly | |
US4236262A (en) | Support grid and spring unit for a box spring foundation unit | |
US3916464A (en) | Pre-stressed spring matrix | |
US4055337A (en) | Spring assembly and clip | |
US3270354A (en) | Furniture spring assembly | |
US5485639A (en) | Modular innerspring and box spring assemblies | |
GB1304214A (en) | ||
US3612505A (en) | Spring assembly | |
US3945627A (en) | Box spring assembly using modular coil springs | |
US2688757A (en) | Reinforcement for spring assemblies |