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WO2007028266A1 - Jeu de ressorts, destine en particulier a un matelas, procede de production de ce jeu de ressorts et machine a enrouler les ressorts permettant de mettre en oeuvre ce procede - Google Patents

Jeu de ressorts, destine en particulier a un matelas, procede de production de ce jeu de ressorts et machine a enrouler les ressorts permettant de mettre en oeuvre ce procede Download PDF

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Publication number
WO2007028266A1
WO2007028266A1 PCT/CH2006/000476 CH2006000476W WO2007028266A1 WO 2007028266 A1 WO2007028266 A1 WO 2007028266A1 CH 2006000476 W CH2006000476 W CH 2006000476W WO 2007028266 A1 WO2007028266 A1 WO 2007028266A1
Authority
WO
WIPO (PCT)
Prior art keywords
spring
springs
devices
processing
coiling machine
Prior art date
Application number
PCT/CH2006/000476
Other languages
German (de)
English (en)
Inventor
Bernhard Graf
Original Assignee
Remex 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 Remex Ag filed Critical Remex Ag
Publication of WO2007028266A1 publication Critical patent/WO2007028266A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F27/00—Making wire network, i.e. wire nets
    • B21F27/12—Making special types or portions of network by methods or means specially adapted therefor
    • B21F27/16—Making special types or portions of network by methods or means specially adapted therefor for spring mattresses
    • 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
    • A47C23/0433—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 different resilience
    • 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
    • A47C27/062—Spring inlays of different resiliencies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F33/00—Tools or devices specially designed for handling or processing wire fabrics or the like
    • B21F33/04—Connecting ends of helical springs for mattresses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F35/00—Making springs from wire
    • B21F35/02—Bending or deforming ends of coil springs to special shape

Definitions

  • the present invention relates to the field of spring cores. It relates to a spring core according to the preamble of claim 1, a method for producing such a spring core, and a spring coiling machine for carrying out the method according to the preamble of claim 14.
  • the shape of the springs is maintained while the hardness of the springs is varied by changing the wire, pitch or pitch diameter.
  • the object is solved by the totality of the features of claims 1, 8 and 14.
  • the gist of the invention is to construct a spring core for locally varying the zoning of differently shaped springs produced in a row by means of a single spring coiling machine by subjecting the preformed springs to spring-to-spring post-forming or post-forming
  • Under differently shaped springs are understood to mean springs that beyond differences in wire diameter, pitch, winding diameter in particular a deviating from the pure spiral shape form aut mono, such as a knot in the head parts in the manner of a Bonnell spring or a more rectangular configuration of the last turn in the headboards.
  • the difference in shape may relate to one or both head parts and / or to the middle part of the springs.
  • An embodiment of the spring core according to the invention is characterized in that the springs each have a middle part and an upper and lower head part, that the differently shaped springs differ by a different shape of the upper and / or lower head part, that the upper and / or lower head part of a springs in the manner of a Bonnell spring has a closed loop with a knot, and that the upper and / or lower head part of the other springs is formed as an open loop.
  • the springs are arranged in a plurality of juxtaposed and mutually parallel and mutually connected rows, wherein only one form of springs is provided per row.
  • rows are provided in which both forms of springs occur, wherein in particular in the rows with two forms of springs one form is arranged at the beginning and end of the row, while the other form in the central region of the row is provided.
  • an embodiment of the inventive method is characterized in that the preformed spring has a central part and an upper and lower head part, and that is deformed for post-processing of the upper and / or lower head part.
  • a plurality of different spring-head processing devices are arranged at the outlet of the winding device, and the preformed springs coming from the winding device are fed to respectively changing spring-head processing devices to produce different spring shapes.
  • the spring head processing devices are arranged at successive stations, which are traversed by the preformed springs. In this case, the spring head processing devices can be activated at different stations to produce different spring shapes. But it is also conceivable that in each case the spring head processing devices are replaced at the stations to produce different spring shapes.
  • An embodiment of the spring coiling machine according to the invention is characterized in that individual stations are provided in succession along the conveying device, which can be approached by the conveying device, and that the at least two devices are arranged for reworking at the stations of the conveying device.
  • the at least two devices for post-processing are arranged at different stations along the conveying device.
  • the at least two devices for post-processing at the same station are arranged interchangeable, in particular, the at least two devices for post-processing are arranged on a laterally provided on the conveyor rotary table.
  • the conveyor device itself can be advantageously designed as a Stempieceer.
  • the at least two post-processing devices are preferably designed as spring-head processing devices, in particular comprising first spring-head processing devices that knot the head parts of the springs, and second spring-head processing devices are provided in the head parts
  • the springs bring the last open turn by bending in a shape deviating from the circular shape.
  • Fig. 1 in the plan view from above a first embodiment of a spring core according to the invention, in which two adjacent spring rows at the ends and in the middle of the spring core are continuously equipped with knotted (Bonnel) springs, while the remaining spring rows unknotted springs bent with a deviation from the circular shape
  • Embodiment of a spring core according to the invention in which the outer two rows of the spring core are circumferentially equipped with knotted (Bonnel) Fedem, while provided in the interior of undecorated springs with deviating from the circular shape bent end turns;
  • FIG. 3 in a comparable to FIG. 1 representation of a third
  • Embodiment of a spring core according to the invention in which four adjacent rows of spring at the ends of the spring core are continuously equipped with knotted (Bonnel) springs, while the remaining rows of feathers unknotted springs bent with deviating from the circular shape
  • FIG. 4 in a side view and in a simplified representation of a
  • Embodiment of a spring coiling machine according to the invention in which the devices are arranged for post-processing at various stations along a star conveyor;
  • FIG. 8 is a perspective view of a typical Bonnell spring with knots in the head part, as for example from the US
  • the spring 13 is of the Bonnell type, as exemplified in FIG.
  • the Bonnell spring 13 has - like other coil springs also - a central portion 31 with turns of smaller diameter and an upper and lower head part 32 and 33 with enlarged Windungs barnmesser.
  • the free end of the last turn in the head part 32, 33 is fixed in each case by a knot 34, so that a closed loop is formed.
  • the spring 14 has an open turn with a free end in the head part.
  • the end turn is made by bending into one of the circular shape deviating shape brought on the one hand favors the connection of adjacent rows of spring through the helical connecting wire 15, and on the other hand, the spring characteristics of the spring both taken by itself, as well as in the composite of the spring core, influenced.
  • An example of such a deformed spring is disclosed in US-A-5,575,460.
  • a total of 18 (vertically extending) rows of springs are interconnected, of which the first and last two rows R1, R2 and R5, R6 and the middle two rows R3, R4 each contain Bonnell-type springs 13 (10 pieces per row).
  • the intermediate rows only springs 14 of a different shape are arranged, which have a deformed open end turn. In this way, in the Federkem 10 (seen from left to right) a total of 5 consecutive zones with different suspension properties.
  • the spring types can change several times within the rows. It is also conceivable, instead of the spring shapes shown other spring shapes use, in which, for example, additional turns or the like are provided in the head part.
  • the individual springs 13, 14 are produced in spring-winding machines, arranged in rows one behind the other, transported to an assembly station and lined up there in rows and interconnected. According to the invention, the differently shaped springs 13, 14 are continuously produced in one and the same spring coiling machine in the cycle operation, wherein the change of the spring shape takes place in accordance with the spring row to be generated.
  • Fig. 4 an embodiment of a spring coiling machine according to the invention is shown in a side view and in a simplified representation.
  • the spring coiling machine 16 is fed by a coil 17 of the wire 18 needed to make the springs.
  • the wire 18 first passes into a winching device 20 where the wire 18 is helically bent with a predetermined pitch and varying diameter and then cut to length by means of a cutter.
  • the pre-formed in the wind device 20 in this way springs F1, .., F8 are received by a known, about a rotation axis stepwise rotating star conveyor 19 on the wind device 20 and successively transported over several along the star conveyor 19 stations until they are from a Pivoting conveyor 27 taken over and set for row formation on a (not shown in Fig. 4) conveyor.
  • the springs F2 to F6 straight at the stations 1 to 5 along the Stem prepareers 19th
  • the preformed springs F1, .., F8 coming from the wind device 20 are subjected to finishing at the stations, which ensures that different spring shapes are formed, which then lead to zones with different suspension properties in the finished spring core.
  • certain devices for post-processing at various stations along the star conveyor 19 are arranged.
  • Devices for post-processing spring head processing devices 21, .., 24 are provided, by means of which in each case the upper and lower head part 32 and 33 of the springs F1, .., F8 is reworked.
  • the two head parts 32, 33 of a spring can be processed simultaneously or in succession.
  • the springs come out of the wind device 20 in a horizontal position, are gripped in the middle by a gripping mechanism provided at the end of each support arm 26 of the star conveyor 19, and conveyed step by step to the subsequent stations.
  • a pair of spring head processing devices 21, .., 24 are provided, each for the upper and the lower (or in the horizontal orientation of Fig. 4 for the front and rear) head of the spring are responsible. If the final shaping by the devices 21 and 22 take place, first the rear head part of the spring is processed by means of the device 21 (spring F2 in FIG. 4).
  • the star conveyor 19 moves one step further so that the spring processed by the device 21 advances to the position on the device 22.
  • the device 22 lies on the other side of the conveying plane and then processes the front head part in the same way. In the next two cycles, the spring then passes through the stations with the devices 23 and 24, where it is not further processed, because this
  • the reworked spring finally reaches the station with the heat treatment device 25, where it is heat treated in a conventional manner.
  • the spring first passes through the stations with the devices 21 and 22 in the first two cycles, but is not processed there, because these devices are provided for the other type of final shaping.
  • the spring At the third clock is first the rear head of the spring by means of
  • Device 23 processed (spring F4 in Fig. 4).
  • the star conveyor 19 moves one step further, so that the device 23 processed spring in the position on the device 24 advances.
  • the device 24 lies on the other side of the conveying plane and then processes the front head part in the same way.
  • the reworked spring finally reaches the station again with the heat treatment device 25, where it is heat treated in a conventional manner.
  • both headboards at one station it is also possible to edit both headboards at one station. So that this can take place within one cycle, the two spring-head processing devices of a pair-as shown in FIG. 6 -are displaceably arranged on a carriage 28 transversely to the conveying plane. If the spring to be processed is located in one station within one cycle, both devices 21, 22 and 23, 24 are brought into contact with the carriage 28 at the same time as the two head parts of the spring and the machining of both head parts takes place simultaneously. It will be needed for a total of four spring head processing devices 21, .., 24, only two stations on the star conveyor 19. Another way to manage with only two stations is shown in Fig. 7.
  • the two alternative spring head processing devices 21, 23 and 22, 24 each rotatably mounted on a turntable 29 and 30 about an axis and can alternatively be brought into engagement with the respective spring head part. If the turntable solution of FIG. 7 is combined with the carriage solution of FIG. 6, the entire post-processing can even be limited to one station on the star conveyor 19.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)

Abstract

L'invention concerne un jeu de ressorts, en particulier pour un matelas, comprenant une pluralité de ressorts hélicoïdaux disposés les uns à côtés des autres dans un plan et reliés les uns aux autres, ce jeu de ressorts étant caractérisé en ce qu'il comprend au moins deux ressorts de forme différente. Ce jeu de ressorts est réalisé par un procédé consistant à produire tous les ressorts (F1,..., F8) successivement dans la même machine à enrouler les ressorts (16) et à disposer ensuite les ressorts en rangée. Chaque ressort (F1,..., F8) est d'abord préformé sous forme de spirale à partir d'un fil au moyen du même dispositif d'enroulement (20) à l'intérieur de la machine à enrouler les ressorts (16), puis chaque ressort préformé est soumis à un traitement ultérieur différent en fonction du ressort, ce traitement conférant au ressort sa forme définitive. L'invention concerne également un dispositif permettant de mettre en oeuvre ce procédé.
PCT/CH2006/000476 2005-09-09 2006-09-04 Jeu de ressorts, destine en particulier a un matelas, procede de production de ce jeu de ressorts et machine a enrouler les ressorts permettant de mettre en oeuvre ce procede WO2007028266A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1469/05 2005-09-09
CH14692005 2005-09-09

Publications (1)

Publication Number Publication Date
WO2007028266A1 true WO2007028266A1 (fr) 2007-03-15

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PCT/CH2006/000476 WO2007028266A1 (fr) 2005-09-09 2006-09-04 Jeu de ressorts, destine en particulier a un matelas, procede de production de ce jeu de ressorts et machine a enrouler les ressorts permettant de mettre en oeuvre ce procede

Country Status (1)

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WO (1) WO2007028266A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013206655B3 (de) * 2013-04-15 2014-06-26 Wafios Ag Verfahren und System zur Herstellung von Schraubenfedern
WO2017036198A1 (fr) * 2015-09-02 2017-03-09 广州市联柔机械设备有限公司 Chaîne à ressorts ensachés multicouche et dispositif et procédé de fabrication de celle-ci

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2017032A (en) * 1932-05-27 1935-10-08 Moore Co Cushion spring assembly
US2260627A (en) * 1938-01-12 1941-10-28 Kay Mfg Corp Mattress spring
US3533114A (en) * 1968-07-12 1970-10-13 Holland Wire Products Co Inc Coil spring configuration
WO1996027461A1 (fr) * 1995-03-03 1996-09-12 L & P Property Management Company Appareil et procede d'assemblage de volumes constitues de ressorts a boudin
WO1999010117A1 (fr) * 1997-08-22 1999-03-04 L & P Property Management Company Procede et dispositif de mise en forme d'interieur a ressorts spirale variables
US6318416B1 (en) * 1997-11-13 2001-11-20 L&P Property Management Company Spring interior and method of making same
DE10063913A1 (de) * 2000-12-20 2002-07-04 Agro Federkernprod Gmbh Verfahren zur Herstellung eines Federkerns mit unterschiedlichen Festigkeitszonen

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2017032A (en) * 1932-05-27 1935-10-08 Moore Co Cushion spring assembly
US2260627A (en) * 1938-01-12 1941-10-28 Kay Mfg Corp Mattress spring
US3533114A (en) * 1968-07-12 1970-10-13 Holland Wire Products Co Inc Coil spring configuration
WO1996027461A1 (fr) * 1995-03-03 1996-09-12 L & P Property Management Company Appareil et procede d'assemblage de volumes constitues de ressorts a boudin
WO1999010117A1 (fr) * 1997-08-22 1999-03-04 L & P Property Management Company Procede et dispositif de mise en forme d'interieur a ressorts spirale variables
US6318416B1 (en) * 1997-11-13 2001-11-20 L&P Property Management Company Spring interior and method of making same
DE10063913A1 (de) * 2000-12-20 2002-07-04 Agro Federkernprod Gmbh Verfahren zur Herstellung eines Federkerns mit unterschiedlichen Festigkeitszonen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013206655B3 (de) * 2013-04-15 2014-06-26 Wafios Ag Verfahren und System zur Herstellung von Schraubenfedern
EP2826734A1 (fr) 2013-04-15 2015-01-21 Wafios Ag Procédé et système de fabrication de ressorts cylindriques
WO2017036198A1 (fr) * 2015-09-02 2017-03-09 广州市联柔机械设备有限公司 Chaîne à ressorts ensachés multicouche et dispositif et procédé de fabrication de celle-ci

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