EP0139956A2 - Noyau à ressorts pour matelas - Google Patents

Noyau à ressorts pour matelas Download PDF

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Publication number
EP0139956A2
EP0139956A2 EP84109738A EP84109738A EP0139956A2 EP 0139956 A2 EP0139956 A2 EP 0139956A2 EP 84109738 A EP84109738 A EP 84109738A EP 84109738 A EP84109738 A EP 84109738A EP 0139956 A2 EP0139956 A2 EP 0139956A2
Authority
EP
European Patent Office
Prior art keywords
spring
leg
springs
spring core
turn
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.)
Granted
Application number
EP84109738A
Other languages
German (de)
English (en)
Other versions
EP0139956A3 (en
EP0139956B1 (fr
Inventor
Alan Thoenen
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.)
Spuehl AG
Original Assignee
Spuehl AG
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 Spuehl AG filed Critical Spuehl AG
Priority to AT84109738T priority Critical patent/ATE38318T1/de
Publication of EP0139956A2 publication Critical patent/EP0139956A2/fr
Publication of EP0139956A3 publication Critical patent/EP0139956A3/de
Application granted granted Critical
Publication of EP0139956B1 publication Critical patent/EP0139956B1/fr
Expired 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
    • 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
    • A47C23/043—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 using wound springs
    • A47C23/0438—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 using wound springs of special shape
    • 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 or spring units therefor
    • A47C27/065—Spring inlays or spring units therefor of special shape
    • 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 or spring units therefor
    • A47C27/07—Attaching, or interconnecting of, springs in spring inlays

Definitions

  • the invention relates to a spring core for a mattress with a plurality of identically shaped, arranged in rows next to each other, coil springs, each of which is formed from a piece of wire and each has an upper and lower mutually aligned end turn, each of which is approximately U-shaped and the other opposite legs are connected to one another by a base web, adjacent coil springs being connected to one another at their end turns along the respectively abutting legs by helical connecting springs.
  • a spring core mentioned at the outset is known from DE-OS 3 321 991, which goes back to the same applicant.
  • the opposite legs of the U-shaped end windings are of the same length there.
  • adjacent coil springs are connected to one another at their end turns along the respectively adjacent legs by means of helical connecting springs.
  • the row and column-shaped coil springs therefore do not form an angle of 90 °, but an angle deviating therefrom, which would lead to diamond-shaped external dimensions of the spring core if one did not take corresponding corrective measures in the automatic assembly machine. However, this involves an increased effort.
  • the invention therefore has the task of developing a spring core according to the subject of DE-OS 3 321 991 so that an automatic installation of such a spring core is possible without special corrective measures.
  • the previously described offset of the coil springs should therefore be avoided.
  • the invention is characterized in that the length of one leg is greater than the length of the other leg and that, with the exception of an edge region of the spring core, all coil springs are aligned identically.
  • the helical connecting spring always comprises a long leg of one helical spring and a short leg of the other helical spring.
  • the short leg of the one end turn of a particular helical spring for example four turns of the helical connecting spring, is encompassed, while the longer leg of the adjacent end turn of the adjacent helical spring is covered by five turns of the helical connecting spring is included.
  • the coil springs are inserted upside down on the narrow sides in order to avoid that the end turns, which are open to the outside, point towards the outside of the mattress. There is a risk that these outward, open end turns rub through the upholstery. Due to the end turns pointing inwards in the edge area, it is possible to lay a circumferential surrounding wire around the spring core in the upper and lower levels, which is connected to the edge legs of the end turns of the coil springs by means of an associated, circumferential connecting spring.
  • a slightly arcuate piece of wire attaches to the free end of the longer leg, which is bent slightly inwards in the direction of the spring axis.
  • this piece of wire At the front, free end of this piece of wire, there is a kinking end, which is bent obliquely inwards from the plane of the end turns in the direction of the spring axis. This ensures that the end of the end turns does not dig up the padding and does not come into contact with the coil springs (even when subjected to extreme loads). Corresponding touching noises are avoided.
  • each end turn is provided with five bending points.
  • the first bending point forms the transition of the coil of the coil spring into the shorter leg.
  • the second bending point forms the transition of the shorter leg in the base web and the third bending point forms the transition of the base web into the longer leg of the U-shaped end turn.
  • the fourth bending point forms the transition of the longer leg into the bent wire piece and the fifth bending point forms the transition of the wire piece into the inclined bent end.
  • the proposed arrangement of the bending points achieves an excellent fixation of the legs in the helical connecting spring encompassing them. There is only minimal displacement of the coil spring in the connecting spring; harmful squeaking and scratching no longer occur.
  • the coil spring 10 shown in FIG. 1 preferably has two successive screw turns 15, 16, the upper screw turn 15 in the upper level 1 of the spring core ending in a U-shaped curved end turn 11, while the lower screw turn 16 in the lower level 2 of the Spring core runs into a lower end turn 31. Both end turns are 11.31 same, so that the description of a final turn suffices.
  • the end windings 11, 31 lie one above the other in alignment with the spring axis 17.
  • the active length of the wire which determines the spring property of the helical spring 10, extends from position 23 of the upper end turn 11 down to position 24 of the lower end turn 31.
  • FIG. 2 shows the bottom view of the lower end turn 31 in solid lines, while the parts above it, in particular the upper end turn 11, are indicated in dashed lines.
  • the shorter leg 13 of the upper end turn 11 is not shown in FIG. 2.
  • the U-shaped end turn has a lateral distance from the screw turns 15, 16. This is represented by the distance 3 of the longer leg 12 of the end turn from the associated screw turn 16, while on the opposite side the shorter leg 13 has a smaller distance 4 from the screw turn 16 of the coil spring 10. These distances 3, 4 ensure that the end turns do not come into contact with the screw turns 15, 16 even when the coil spring 10 is subjected to extreme loads.
  • the respective final turn is 11.31 U-shaped.
  • the end turn 31 shown in solid lines in FIG. 2 is formed from a shorter leg 13, the base web 18 forming the base of the U and the longer leg 12.
  • the shorter leg 13 of the U-shaped end turn 31 connects to the descending screw turn 16 of the coil spring 10 via a first bending point 5.
  • the shorter leg 13 has a length 26. Via a second bending point 6, the shorter leg 13 runs into the base web 18, which at the time was slightly curved. At the opposite end of the base web 18, a third bending point 7 is arranged, to which one end of the longer leg 12 connects. This in turn runs slightly curved with a length 25 to the fourth bending point 8. There, again slightly curved and bent out of the plane 1, 2 of the mattress, a piece of wire 28 attaches to the front free end of which via a fifth bending point 9 the kinking end 14 starts.
  • bent wire piece 28 with the bent end 14 attached to it can be seen from FIG. 5.
  • the wire pieces 28 with the kink ends 14 attached to them are each bent obliquely inwards in the direction of the spring axis 17, so that there is no contact with the screw turns 15, 16 of the coil springs 10, 10 ', and no excavation of the upholstery is to be feared.
  • the respective wire end of the open end turn 11, 31 is thus optimally protected.
  • the upper end turn 11 is formed in an analogous manner to the lower end turn 31, as can be seen from the dashed line Representation in Figure 2 results.
  • FIGS. 3 to 5 show a partially assembled spring core.
  • FIGS. 3 and 4 also show the edge region 27 of the spring core, where it can be seen that only in this edge region 27 are the coil springs 10, which are otherwise oriented the same way, so that the otherwise lower end turn 31 lies there at the top.
  • FIGS. 3 and 4 show the coil springs 10 arranged in rows and columns.
  • the connecting lines 19 through the spring axes 17 form vertical lines in the drawing plane of FIG. 4, while horizontal lines are defined in an analogous manner through the connecting lines 19a.
  • the connecting lines 19, 19a intersect at right angles, so that the edge sides of the spring core assembled in this way also form right angles. The formation of said right angles does not lead to the offset previously described in connection with DE-OS 33 21 991, which could only be eliminated by corresponding corrections on the assembly machine.
  • bent wire pieces 28 with the bending ends 14 attached to them are each bent inwards in the direction of the spring axis 17, 17 '. They are each bent out of the plane 1.2 of the innerspring, so that an undesirable contact with the upholstery material is excluded in any case.

Landscapes

  • Springs (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Finger-Pressure Massage (AREA)
EP84109738A 1983-09-20 1984-08-16 Noyau à ressorts pour matelas Expired EP0139956B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84109738T ATE38318T1 (de) 1983-09-20 1984-08-16 Federkern fuer eine matratze.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3333846 1983-09-20
DE19833333846 DE3333846A1 (de) 1983-09-20 1983-09-20 Federkern fuer eine matratze

Publications (3)

Publication Number Publication Date
EP0139956A2 true EP0139956A2 (fr) 1985-05-08
EP0139956A3 EP0139956A3 (en) 1986-01-02
EP0139956B1 EP0139956B1 (fr) 1988-11-02

Family

ID=6209516

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84109738A Expired EP0139956B1 (fr) 1983-09-20 1984-08-16 Noyau à ressorts pour matelas

Country Status (10)

Country Link
US (1) US4817924A (fr)
EP (1) EP0139956B1 (fr)
JP (1) JPS60111611A (fr)
AT (1) ATE38318T1 (fr)
AU (1) AU568877B2 (fr)
CA (1) CA1230685A (fr)
DE (2) DE3333846A1 (fr)
ES (1) ES281530Y (fr)
MX (1) MX161820A (fr)
ZA (1) ZA847373B (fr)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100355167B1 (ko) * 1994-10-21 2002-12-16 실리 테크놀로지 엘엘씨 자유종단회선을갖는스프링을갖춘이너스프링구조물
US5575460A (en) * 1995-01-09 1996-11-19 Spuehl Ag Spring core for a mattress
US5584083A (en) * 1995-06-01 1996-12-17 L&P Property Management Company Mattress spring core
USD383023S (en) * 1996-03-15 1997-09-02 L&P Property Management Company Top portion of a spring core
USD392129S (en) 1996-03-15 1998-03-17 L&P Property Management Company Top portion of a spring core
USD382152S (en) * 1996-03-15 1997-08-12 L&P Property Management Company Top portion of a spring core
USD382743S (en) * 1996-03-15 1997-08-26 L&P Property Management Company Top portion of a spring core
USD382153S (en) * 1996-03-15 1997-08-12 L&P Property Management Company Top portion of a spring core
USD382155S (en) * 1996-03-15 1997-08-12 L&P Property Management Company Top portion of a spring core
USD382154S (en) * 1996-03-15 1997-08-12 L&P Property Management Company Top portion of a spring core
USD382151S (en) * 1996-03-15 1997-08-12 L&P Property Management Company Top portion of a spring core
USD382740S (en) * 1996-03-15 1997-08-26 L&P Property Management Company Top portion of a spring core
USD382741S (en) * 1996-03-15 1997-08-26 L&P Property Management Company Top portion of a spring core
USD382739S (en) * 1996-03-15 1997-08-26 L&P Property Management Company Top portion of a spring core
USD386334S (en) * 1996-03-15 1997-11-18 L&P Property Management Company Top portion of a spring core
USD382742S (en) * 1996-03-15 1997-08-26 L&P Property Management Company Top portion of a spring core
USD382427S (en) * 1996-04-02 1997-08-19 L&P Property Management Company Top portion of a mattress spring core
US5699999A (en) * 1996-04-02 1997-12-23 L&P Property Management Company Aligned mattress spring core
USD382745S (en) * 1996-07-16 1997-08-26 L&P Property Management Company Top portion of a spring core
US6375169B1 (en) 2000-07-28 2002-04-23 Hickory Springs Manufacturing Company Mattress spring cushion assembly with combination of right-hand and left-hand spring units
KR100503556B1 (ko) * 2003-01-07 2005-07-25 주식회사 에이스침대 매트리스용 포켓스프링의 구조 및 제조 방법
US20050089061A1 (en) * 2003-08-28 2005-04-28 Oleg Logvinov Joint powerline/ultra-wide band system
US7404223B2 (en) * 2004-08-28 2008-07-29 Sealy Technology Llc Innerspring coils and innersprings with non-helical segments
USD530120S1 (en) 2005-06-09 2006-10-17 L&P Property Management Company End portion of a coil spring
US7386897B2 (en) 2005-06-09 2008-06-17 L&P Property Management Company Bedding or seating product made with coil springs having unknotted end turns
USD575564S1 (en) 2007-07-10 2008-08-26 L&P Property Management Company Top portion of a spring core
USD527932S1 (en) 2005-06-09 2006-09-12 L&P Property Management Company Top portion of a spring core
USD574168S1 (en) 2007-07-10 2008-08-05 L&P Property Management Company End portion of a coil spring
KR100717543B1 (ko) * 2006-03-14 2007-05-15 주식회사 에이스침대 침대 매트리스용 스프링 구조
US8720872B2 (en) * 2011-01-20 2014-05-13 Sealy Technology, Llc Innersprings with alternating coil spring orientations
EP2689695B1 (fr) 2012-07-26 2016-06-08 L & P Swiss Holding AG Noyau de ressort
USD739162S1 (en) * 2012-08-22 2015-09-22 L&P Swiss Holding Ag Coil spring
US11076705B2 (en) 2014-05-30 2021-08-03 Sealy Technology, Llc Spring core with integrated cushioning layer
ES2977948T3 (es) 2015-12-17 2024-09-03 Sealy Technology Llc Resorte helicoidal en espiral con respuesta de carga variable y colchones que incluyen el mismo
PL3841921T3 (pl) 2016-01-21 2025-03-24 Sealy Technology, Llc Sprężyny typu coil-in-coil z nieliniowymi reakcjami na obciążenie i materace zawierające takie sprężyny
US10598242B2 (en) 2016-05-20 2020-03-24 Sealy Technology, Llc Coil springs with non-linear loading responses and mattresses including the same
WO2019089429A1 (fr) 2017-10-31 2019-05-09 Sealy Technology, Llc Ensemble ressort hélicoïdal ensaché comprenant une mousse souple
KR102878621B1 (ko) * 2018-02-09 2025-10-30 마다드 피티와이 엘티디 와이어 코일 및 이너 스프링 시스템
USD1064696S1 (en) * 2022-09-07 2025-03-04 Spühl Gmbh Coil spring

Family Cites Families (18)

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Publication number Priority date Publication date Assignee Title
US1744389A (en) * 1927-08-27 1930-01-21 Karr Francis Spring assembly
US1887058A (en) * 1927-12-21 1932-11-08 Karr Francis Spring assembly
US1897309A (en) * 1928-11-23 1933-02-14 Charles Karr Company Spring assembly
US1895429A (en) * 1930-01-02 1933-01-24 Foster Brothers Mfg Co Spring construction
GB338054A (en) * 1930-01-03 1930-11-13 Charles Karr Company Inc Improvements in spring assemblies, applicable to mattresses, cushions or the like
US1982426A (en) * 1931-11-23 1934-11-27 Otto L Goethel Triple lock spring with floating top
US2017032A (en) * 1932-05-27 1935-10-08 Moore Co Cushion spring assembly
GB386251A (en) * 1932-07-20 1933-01-12 Wales Ltd Improvements in mattresses and the like
GB397707A (en) * 1932-10-31 1933-08-31 John Maurice Davis Improvements in and connected with spring fillers for mattresses, cushions and the like
US1963055A (en) * 1933-08-14 1934-06-12 Powers Spring Corp Wire spring
US2374850A (en) * 1941-10-18 1945-05-01 William E Wunderlich Inner spring unit
US2581686A (en) * 1946-04-22 1952-01-08 Edward L Mcroskey Spring construction
US2567520A (en) * 1948-10-11 1951-09-11 William K Mcinerney Tension regulation coil spring
US2631840A (en) * 1949-01-27 1953-03-17 George H Bugenhagen Coil spring construction
US4095297A (en) * 1977-05-11 1978-06-20 Holland Wire Products, Inc. Coil spring assembly
AT371984B (de) * 1981-08-28 1983-08-25 Spuehl Ag Schraubenfeder fuer federkerne von matratzen und polstermoebeln
AU550045B2 (en) * 1982-05-26 1986-02-27 Madad Pty. Ltd. Spring mattress
CH658778A5 (de) * 1982-06-28 1986-12-15 Spuehl Ag Federkern fuer eine matratze.

Also Published As

Publication number Publication date
CA1230685A (fr) 1987-12-22
ATE38318T1 (de) 1988-11-15
US4817924A (en) 1989-04-04
ES281530Y (es) 1986-05-16
JPH0233366B2 (fr) 1990-07-26
JPS60111611A (ja) 1985-06-18
DE3474903D1 (en) 1988-12-08
ZA847373B (en) 1985-05-29
EP0139956A3 (en) 1986-01-02
EP0139956B1 (fr) 1988-11-02
AU3332884A (en) 1985-03-28
DE3333846A1 (de) 1985-04-04
AU568877B2 (en) 1988-01-14
ES281530U (es) 1985-04-16
MX161820A (es) 1990-12-28

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