EP2349605B1 - Dispositif et procédé de fabrication de ressorts - Google Patents

Dispositif et procédé de fabrication de ressorts Download PDF

Info

Publication number
EP2349605B1
EP2349605B1 EP09775082.2A EP09775082A EP2349605B1 EP 2349605 B1 EP2349605 B1 EP 2349605B1 EP 09775082 A EP09775082 A EP 09775082A EP 2349605 B1 EP2349605 B1 EP 2349605B1
Authority
EP
European Patent Office
Prior art keywords
spring
spring part
deflection element
forming roller
coils
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.)
Not-in-force
Application number
EP09775082.2A
Other languages
German (de)
English (en)
Other versions
EP2349605A1 (fr
Inventor
Bernhard Graf
Michael Egli
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
Publication of EP2349605A1 publication Critical patent/EP2349605A1/fr
Application granted granted Critical
Publication of EP2349605B1 publication Critical patent/EP2349605B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F1/00—Bending wire other than coiling; Straightening wire
    • B21F1/02—Straightening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F3/00—Coiling wire into particular forms
    • 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

Definitions

  • the present invention relates to a method for producing springs according to the preamble of claim 1, and to an apparatus for producing springs according to the preamble of claim 9.
  • pocket springs designed as multiple compression springs for mattresses or other reclining and seat cushions are known.
  • a multiple compression spring for example, a pair of springs understood, which includes an outer spring and an inner spring.
  • the inner spring is arranged parallel to the outer spring and is surrounded by the latter.
  • the inner spring is usually chosen slightly shorter than the outer spring.
  • the invention has for its object to provide a method and a device which is able to produce a spring for mattresses or other reclining and seat cushions in a simple manner.
  • a spring is made of a spring wire.
  • windings of a first spring part are produced, with these produced turns moving in a first direction.
  • windings of a second spring part are produced, wherein these turns produced in a different from the first direction, in particular to move in the opposite, second direction.
  • a spring with a plurality of spring parts can be produced in a simple manner.
  • the spring parts can be arranged such that they prevail in whole or in part.
  • it is possible to produce with such a method double springs of any shape, diameter, pitch and / or number of turns.
  • the first direction and the second direction preferably run parallel to the respective center axis of the first and the second spring part.
  • the turns of the first spring part and the second spring part preferably extend in the same direction of rotation, ie either clockwise or counterclockwise.
  • the spring wire is fed to a forming roller and a first deflecting element, so that the turns of the first spring part are produced in such a way that they move in the first direction along a first central axis.
  • the first deflecting element is changed by a second deflecting element, so that the turns of the second spring part are produced in such a way that they move along a second central axis in the second direction.
  • the forming roller When changing from the first deflecting element to the second deflecting element, the forming roller is preferably pivoted, whereby a transition section is formed from the end turns of the first spring part or of the second spring part, via which the first spring part is connected to the second spring part. About the transition portion of the first spring member is connected to the second spring member, so that a one-piece spring is produced.
  • the first deflecting member is displaced relative to the forming roller, and / or changing the pitch of the second spring member, the second deflecting member is displaced relative to the forming roller.
  • both the first spring part and the second spring part with a on the respective Length of varying pitch be formed.
  • both the first spring part and the second spring part may be formed with a varying over the respective length diameter, which allows the production of a spring of any shape or shape.
  • the spring wire is deflected by a guide element in the direction of forming roller prior to hitting the forming roller, wherein the guide deflects the spring wire only until a first complete turn is formed.
  • the spring wire can be fed at a higher speed, which speeds up the production.
  • the spring wire After leaving the forming roller and / or the deflecting elements, the spring wire is preferably deflected by a further guide element in the first or second direction, wherein the further guide element deflects the spring wire until at least one first complete turn is formed.
  • the spring is formed as a multiple compression spring, wherein the first spring member is an inner compression spring member and wherein the second spring member is an outer compression spring member.
  • the inner compression spring part is arranged within the outer compression spring part.
  • the inner compression spring part is surrounded by the outer compression spring part.
  • the inner compression spring part is shorter with respect to the central axis than the outer compression spring part.
  • a third, fourth, fifth or sixth spring part is produced.
  • Windings of a first spring part can be produced by means of a forming unit by means of a device for producing a spring from a spring wire, wherein these turns produced are movable in a first direction. Subsequently, windings of a second spring part with the forming unit can be produced, wherein these turns produced in a different from the first direction, in particular opposite, second Direction are movable.
  • the forming unit comprises at least one forming roller, a first deflecting element and a second deflecting element.
  • the spring wire can be fed to the forming roller, wherein the forming roller transforms the spring wire.
  • the first deflecting element is provided for prescribing the pitch of the first spring part and the second deflecting element for prescribing the pitch of the second spring part.
  • the first deflecting element and the second deflecting element are movable from a rest position to an operative position, in which the deflecting elements deflect the spring wire such that the turns of the first spring part are movable in the first direction, and in that the turns of the second spring part in the second Direction are movable.
  • the first deflecting element and the second deflecting element are displaceable relative to the forming roller, whereby the pitch of the respective spring part is adjustable.
  • the pitch of this spring part can be made variable over its length.
  • the forming roller is pivotally arranged, so that the diameter of the respective spring part is variable.
  • the diameter of each spring member can be made variable over its length.
  • the spring member may be formed with any shape.
  • a multiple spring any spring comprising a plurality of interconnected individual spring members.
  • the individual spring parts have different diameters, which makes it possible to arrange the individual spring parts into one another.
  • a multiple spring is understood to mean a spring which comprises a plurality of spring parts arranged one inside the other and connected to one another.
  • the spring parts may have different or equal lengths.
  • Such springs are used for example as multiple pocket springs in a corresponding pocket spring strips for mattresses or other reclining and seat cushions.
  • the device and the method for producing a spring will be explained by way of example with reference to the double compression spring 1.
  • the double compression spring 1 essentially comprises an inner compression spring or a first spring part 10 with a first center axis 11 and an outer compression spring connected to the inner compression spring 10 and a second spring part 12 with a second central axis 13.
  • the inner compression spring 10 is within the arranged outside the compression spring 12, wherein the first central axis 11 extends substantially parallel to the second central axis 13, more preferably, the two central axes 11, 13 are collinear with each other.
  • the inner compression spring 10 has a smaller outer diameter than the outer compression spring 12.
  • the inner compression spring 10 or the first spring part comprises a first, preferably free, end 14, which is adjoined by the inner spring coils 15.
  • the inner spring coils 15 pass via a transition section 16, which is formed by the end turns of the respective compression spring 10, 12, into the outer spring coils 17 of the outer compression spring 12.
  • the transition section 16 is located in the direction of the central axis 11 as seen from the first end 14.
  • the diameter of the transition section 16 increases from the end of the last inner spring coil 15 to the beginning of the first outer spring coil 17 and the second spring member continuously.
  • the outer spring coils 17 of the outer compression spring 12 thus extend from the transition section 16 in the direction of the second central axis 13 to the second, preferably free, end 18.
  • the outer compression spring 12 and the inner compression spring 10 are integrally connected with each other.
  • a multiple compression spring 1 is composed of a plurality of compression springs 11, 12, wherein the compression springs 11, 12 are each formed via a transition section 16, so that the multiple compression spring 1 is integrally formed.
  • the inner compression spring 10 is shorter than the outer compression spring 12.
  • the outer compression spring 12 When loaded on the outer compression spring 12 in the region of the second end 18, the outer compression spring 12 is compressed in a first step.
  • the outer compression spring 12 is thus compressed at a first spring rate. If the outer compression spring 12 is compressed so far that it has the length of the inner compression spring 10 and the load stops, the inner spring 10 is also compressed, wherein the outer compression spring 12 and the inner compression spring 10 are then connected in parallel.
  • the spring rate is then composed of the first spring rate of the outer compression spring 12 and the spring rate of the inner compression spring 10.
  • the multiple compression spring may include additional springs such that three, four, five, or six or more compression springs are disposed one inside the other. These compression springs are integrally formed and may have different or equal lengths.
  • the slope of the inner compression spring 10 and the outer compression spring 12 can over the entire spring length to be constant.
  • the pitch can also be variable over the length.
  • the inner compression spring 10 may have a different pitch than the outer compression spring.
  • the inner compression spring 10 and the outer compression spring 12 are cylindrical. But it is also conceivable to form the springs barrel-shaped or conical. Particularly preferably, the inner compression spring 10 is cylindrical or conical, while the outer compression spring 12 is barrel-shaped.
  • FIG. 2 shown essential parts of an apparatus for producing a multiple compression spring described herein. It should be noted at this point that the device is quite capable of producing other compression springs, such as a simple compression spring with constant or variable pitch and / or constant or variable diameter.
  • the device for producing compression springs essentially comprises a feed unit 2, a forming unit 3, a cutting unit 4 and a guide unit 5.
  • the feed unit 2 is used to supply the spring wire 6 to the forming unit 3.
  • the spring wire 6 is formed to multiple compression spring 1.
  • the multiple compression spring 1 is separated from the spring wire 6 after the forming process.
  • the guide unit 5 serves to guide the multiple compression spring 1 during the forming process.
  • the feed unit 2 comprises pairs of rollers 21, which give the spring wire 6 by rotation R the propulsion, and an insertion section 23 which feeds the spring wire 6 of the forming unit 3 at the corresponding position.
  • the rollers 21 each comprise on their surface a respective groove 22 in which the spring wire 6 is guided.
  • the upper roller 21 rotates here in a clockwise direction, while the lower roller 21 rotates counterclockwise, so that the spring wire 6 placed between the two rollers 21 is advanced in the direction of the insertion section 23.
  • the introduction route 23 essentially has an opening 24 extending through the insertion path 23, through which the spring wire 6 is advanced. As soon as the spring wire has left the opening 24, this hits the forming unit 3.
  • the opening 24 provides with its central axis a reference axis A, along which the spring wire 6 runs.
  • the forming unit or spring wind unit 3 essentially comprises a forming roller 30 with a forming groove 31, and a first deflecting element 32 and a second deflecting element 33.
  • the forming roller 30 influences the diameter of the compression spring to be wound, while the deflecting elements 32, 33 influence the pitch of the compression spring.
  • the forming roller 30 is arranged to the opening 24, that the spring wire 6 meets the Umformrille 31, so that the spring wire 6 is deflected along a circular path and thereby the compression spring 1 is formed.
  • a plane which extends parallel to the reference axis A and through the center M of the forming roller 30 can be defined as the principal plane H.
  • the forming roller 30 can be positioned relative to the reference axis A of the opening 24 with the main plane H or with the center M. Due to the relative positioning of the diameter of the compression spring is adjusted.
  • the main plane H is preferably horizontal.
  • a reference plane is defined here, which essentially runs through the forming groove 31 and through the reference axis A. From this reference plane extends in one direction to the rear a direction B and in the other direction to the front, a direction C.
  • the inner compression spring 10 in the direction B and the outer compression spring 12 is advanced or moved in the direction C.
  • the forming roller 30 is preferably movable via a pivoting movement in the reference plane.
  • the deflecting elements 32, 33 serve to deflect the spring wire after it has been reshaped by the forming groove 31.
  • Both deflection elements 32, 33 are cylindrical here and can be moved along the respective central axis.
  • the deflecting elements 32, 33 are moved by a respective pneumatic cylinder or a hydraulic cylinder.
  • the baffles 32, 33 are from a rest position into one Actuation position movable.
  • the operative position is defined as the position at which the spring wire 6 is in contact with the corresponding deflector 32, 33.
  • the spring wire 6 is in contact with either the first deflecting element 32 or the second deflecting element 33.
  • the deflecting element 32 is in the operative position.
  • the deflecting elements 32, 33 are arranged parallel to one another. Both deflection elements 32, 33 each comprise a deflection surface 35, 36, by means of which the spring wire 6 is deflected.
  • the compression spring 10 is wound along the first central axis 11, with the turns of the produced first compression spring 10 in this case moving or extending in the direction B.
  • the direction B is substantially perpendicular to the central axis A and parallel to the main plane H of the deflection surface 35 of the first deflector 32 and from the reference plane to the rear.
  • the second deflecting element 33 is arranged in operative position, so that the compression spring 12 wound along the second central axis 13, wherein the turns of the produced second compression spring 12 in this case moves or extends in the direction C.
  • the direction C is substantially perpendicular to the central axis A and parallel to the main plane H of the deflection surface 36 of the second deflection element 33 and from the reference plane to the front.
  • Both the first deflecting element 32 and the second deflecting element 33 are offset in the operative position from the reference plane in the direction in which the compression spring is to extend. Due to the distance between the reference plane or forming groove 31 and deflecting surface 35, 36 of the respective deflecting element 32, 33, the pitch of the compression spring is predetermined. The function of the deflection elements 32, 33 will be explained below with the other figures in detail.
  • the forming unit 3 comprises a guide element 38, which can be referred to as the upper guide element 38.
  • the upper guide element 38 has a guide surface 380, which presses the spring wire 6 directly after exiting the opening 24 in the corresponding direction, so that the spring wire already slightly preformed on the Umformrille 31st meets.
  • the guide surface 380 is at an angle to the reference axis A.
  • the position of the guide element 38, in which the spring wire 6 is deflected by the guide element 38 can be referred to as the active position. Once the spring wire is in contact with the forming roller 30, the guide member 38 is withdrawn, and then it is no longer with the spring wire 6 in engagement and is in the rest position.
  • the forming unit 3 preferably comprises a further guide element 37, which may be referred to as the lower guide element 37.
  • the lower guide element 37 is viewed in the direction of the spring winding, arranged after the two deflecting elements 32, 33.
  • the lower guide member 37 engages in the first turn of the compression spring supportive to specify or support the direction in which the compression spring should extend.
  • the guide element 37 is then in the operative position and can be moved by this in a rest position.
  • the cutting unit 4 (see FIG. 8 ) is substantially perpendicular to the reference axis A and at an angle to the directions B and C.
  • the cutting unit 4 essentially comprises a cutting tool 40 with a cutting blade 41, which cuts through the spring wire after winding in the region of the opening 24.
  • the cutting tool 40 is moved so that it exceeds the axis A during the severing of the spring wire 6 with the cutting blade 41.
  • the guide unit 5 here essentially comprises a rear guide pin 50 and a front guide pin, which is not shown here.
  • the two guide pins 50 are movable parallel to the center axes of the inner compression spring 10 and the outer compression spring 12 and to the reference axes B and C.
  • the two guide pins 50 protrude into the region of the resulting compression spring, so that vibrations of the compression spring can be absorbed by the guide pins.
  • only one guide pin, preferably the rear guide pin 50 may be provided.
  • the guide pin 50 protrudes through the spring so that it does not touch the spring, but supports, if the spring is vibrated.
  • the guide pin 50 has a diameter which is smaller than the smallest diameter of the inner compression spring 10.
  • the rear guide mandrel may be fixed, ie immovable, arranged, and the front guide pin can be moved relative to the rear guide pin.
  • FIGS. 3 to 8 show the preparation of an input described multiple compression spring.
  • a first step as in FIG. 3 is shown, fed to the spring wire 6 via the feed unit 2 of the forming unit 3.
  • the front end of the spring wire 6 strikes the forming groove 31 in the forming roll 30.
  • the forming roll 30 is placed relative to the opening 24 so that the spring wire 6 strikes the forming roll 31 below the horizontal main plane H.
  • the spring wire as in the FIG. 3 shown deflected from the main plane H downwards.
  • the spring wire 6 strikes the deflecting surface 35 of the first deflecting element 32 after being deflected by the forming groove 31.
  • the first deflecting element 32 stands in its operative position or in the forward position and is arranged relative to the opening 24 and the forming groove 31 such that the Deflection surface 35 in the direction in which the spring wire 6 is to be wound, is arranged offset by a certain distance.
  • the distance corresponds essentially to the pitch of the spring. In other words, it can also be said that the deflection surface 35 is offset from the reference plane in the direction of the direction B.
  • the lower guide element 37 is substantially cylindrical and comprises a conical tip 370 and a lateral surface 371 is further deflected by this guide element 37 through the conical tip 370 or the lateral surface 371 and continue to support the already provided by the deflection surface 35 direction specification of the spring wire 6.
  • the lower guide element 37 is withdrawn along its central axis 372 from the operative position to the rest position as soon as the spring wire has been guided in the corresponding direction, here the direction B.
  • the rear guide pin 50 is advanced forward in the direction of the reference plane.
  • the guide pin 50 may already be in the front region when the spring wind process begins.
  • the guide pin 50 essentially serves to guide the compression spring to prevent it from being vibrated during manufacture.
  • FIG. 4 In the FIG. 4 is now shown that in a further propulsion of the spring wire, this is transformed so that the inner compression spring 10 is formed.
  • the inner compression spring 10 In the FIG. 4 the inner compression spring 10 is shown with a first handling.
  • the winding of the inner compression spring 10 during manufacture along the direction B extends from the reference plane to the rear.
  • the front end 14 When viewed in the direction B, the front end 14 moves in the counterclockwise direction.
  • the propulsion of the spring wire stops until the desired length of the inner compression spring 10 is reached.
  • the first deflecting element 32 is movable relative to the reference axis A and the forming roller 31.
  • the pitch of the spring for each section can be individually predetermined. In other words, this means that the distance between the reference plane and the deflection surface 35 is proportional to the pitch of the inner compression spring 10.
  • FIG. 5 shows the inner compression spring 10, which has reached the predefined length.
  • the first deflecting element 32 is now moved from the operative position to the rest position and the second deflecting element 33 is moved from the rest position to the operative position.
  • the movement of the respective deflection elements 32, 33 takes place along the corresponding central axis.
  • This step will be in the FIG. 6 shown in more detail.
  • the directional change is shown before production of the outer compression spring 12.
  • the forming roller 30 is pivoted away along a circular movement from the position for producing the inner compression spring 10 to the position for producing the outer compression spring 12. This is represented by arrow W.
  • arrow W During the pivoting away of the forming roller 30 of the transition portion 16, which connects the inner compression spring 10 with the outer compression spring 12 is formed.
  • the first deflecting member 32 engaged with the spring wire 6 is retracted from the operative position to the rest position, and the second deflecting member 33 is advanced from the rest position to the operative position. From now on, the spring wire 6 abuts against the deflection surface 36 of the second deflection element 33. Due to the relative arrangement between the reference axis B and the deflection surface 36, the spring wire is now guided in the direction B opposite to the direction C.
  • the pitch and / or the diameter of the outer compression spring 12 can be changed in a simple manner during the manufacturing process.
  • the slope is changed by the relative positioning of the second deflection element 33 and the deflection surface 36 to the reference axis A and Umformrille 31.
  • the second deflecting element 33 is pushed in the direction B or C backwards or forwards.
  • the diameter is adjusted by pivoting the forming roller 30 along the direction W.
  • FIG. 7 seen that the guide pin 50 is still in the forward position and the compression spring 1 performs accordingly.
  • the guide pin 50 is slid forward along the direction C to guide the multiple compression spring 1.
  • a front guide pin is also fed against the direction C from the front side. This has the advantage that the time required to retract the guide pins from the compression spring 1 is smaller than when only a single guide pin is present.
  • FIG. 8 shows the last step of the manufacturing process, in which case the cutting unit 4 with the cutting blade 40 separates the compression spring 1 of spring wire 6. With this process, the second end 18 is formed at the same time. Before the cutting operation, the spring is gripped by a known from the prior art gripper element and can then be carried away after the cutting process.
  • the second deflecting element 33 is withdrawn from the effective range and the first deflecting element 32 is advanced into the effective range, so that the starting position is restored.
  • the forming roller 30 is brought into the position in which the inner compression spring 10 can be wound.

Landscapes

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

Claims (15)

  1. Procédé de fabrication d'un ressort (1) à partir d'un fil métallique pour ressort (6) dans lequel des enroulements d'une première partie de ressort (10) sont fabriqués, dans lequel ces enroulements fabriqués se déplacent dans une première direction (B), et dans lequel ensuite des enroulements d'une deuxième partie de ressort (12) sont fabriqués, dans lequel ces enroulements fabriqués se déplacent dans une deuxième direction (C) différente de, en particulier opposée à, la première direction, caractérisé en ce que le fil métallique pour ressort (6) est amené à un galet de formage (30) et à un premier élément de déflexion (32) de sorte que les enroulements de la première partie de ressort (10) soient fabriqués de telle manière qu'ils se déplacent le long d'un premier axe médian (11) dans la première direction (B), dans lequel ensuite le premier élément de déflexion (32) est remplacé par un deuxième élément de déflexion (33) de sorte que les enroulements de la deuxième partie de ressort (12) soient fabriqués de telle manière qu'ils se déplacent le long d'un deuxième axe médian (12) dans la deuxième direction (C).
  2. Procédé selon la revendication précédente, caractérisé en ce que lors du passage du premier élément de déflexion (32) au deuxième élément de déflexion (33), le galet de formage (30) est basculé, moyennant quoi une section de transition (16) est formée à partir des enroulements finaux de la première partie de ressort (10) ou de la deuxième partie de ressort (12), par le biais de laquelle la première partie de ressort (10) est reliée à la deuxième partie de ressort (12).
  3. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que pour changer le pas de la première partie de ressort (10), le premier élément de déflexion (32) est déplacé par rapport au galet de formage (30) et/ou que pour changer le pas de la deuxième partie de ressort (12), le deuxième élément de déflexion (33) est déplacé par rapport au galet de formage (30).
  4. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le galet de formage (30) est déplacé pour modifier le diamètre de la première partie de ressort (10) et/ou de la deuxième partie de ressort (12).
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le fil métallique pour ressort (6) est dévié avant d'atteindre le galet de formage (30) par un élément de guidage (38) en direction du galet de formage (30), dans lequel l'élément de guidage (38) dévie le fil métallique pour ressort (6) uniquement jusqu'à ce qu'un premier enroulement complet soit formé.
  6. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le fil métallique pour ressort (6) est dévié après le départ du galet de formage et/ou des éléments de déflexion (32, 33) par un autre élément de guidage (37) dans la première ou deuxième direction (B, C), dans lequel l'autre élément de guidage (37) dévie le fil métallique pour ressort jusqu'à ce qu'au moins un premier enroulement complet soit formé.
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le ressort (1) est réalisé sous forme de ressort de pression multiple, dans lequel la première partie de ressort (10) est une partie de ressort de pression intérieure (10) et dans lequel la deuxième partie de ressort (12) est une partie de ressort de pression extérieure (12), dans lequel la partie de ressort de pression intérieure (10) est agencée à l'intérieur de la partie de ressort de pression extérieure (12).
  8. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'en plus de la première partie de ressort (10) et de la deuxième partie de ressort (12), une troisième, quatrième, cinquième ou sixième partie de ressort est fabriquée.
  9. Dispositif de fabrication d'un ressort (1) à partir d'un fil métallique pour ressort (6) avec une unité de formage (3) pour la fabrication :
    - des enroulements d'une première partie de ressort (10), dans lequel ces enroulements fabriqués sont déplaçables dans une première direction (B), et ensuite :
    - des enroulements d'une deuxième partie de ressort (12), dans lequel ces enroulements fabriqués sont déplaçables dans une deuxième direction (C) différente de, en particulier opposée à, la première direction, caractérisé en ce que :
    - l'unité de formage (3) comprend au moins un galet de formage (30), un premier élément de déflexion (32), un deuxième élément de déflexion (33) et une unité de changement pour changer les éléments de déflexion (32, 33),
    - le dispositif comprend une unité d'alimentation, moyennant quoi le fil métallique pour ressort (6) peut être amené au galet de formage (30) et au premier élément de déflexion (32),
    - l'unité de changement est adaptée pour changer le premier élément de déflexion (32) et le deuxième élément de déflexion (33) de sorte que lorsque le premier élément de déflexion (32) est appliqué, les enroulements de la première partie de ressort (10) puissent être fabriqués de telle manière qu'ils se déplacent le long d'un premier axe médian (11) dans la première direction (B), et ensuite lorsque le premier élément de déflexion (32) est remplacé par le deuxième élément de déflexion (33), les enroulements de la deuxième partie de ressort (12) puissent être fabriqués de telle manière qu'ils se déplacent le long d'un deuxième axe médian (12) dans la deuxième direction (C).
  10. Dispositif selon la revendication 9, caractérisé en ce que le premier élément de déflexion (32) est prévu pour fixer le pas de la première partie de ressort (10) et le deuxième élément de déflexion (33), pour fixer le pas de la deuxième partie de ressort (12).
  11. Dispositif selon l'une quelconque des revendications 9 à 10, caractérisé par des moyens de déplacement du premier élément de déflexion (32) et du deuxième élément de déflexion (33) d'une position de repos à une position de fonctionnement, dans laquelle les éléments de déflexion (32, 33) dévient le fil métallique pour ressort (6) respectivement de telle manière que les enroulements de la première partie de ressort (10) sont déplaçables dans une première direction (B) et que les enroulements de la deuxième partie de ressort (12) sont déplaçables dans une deuxième direction (C).
  12. Dispositif selon l'une quelconque des revendications 9 à 11, caractérisé par des moyens de coulissement du premier élément de déflexion (32) et du deuxième élément de déflexion (33) par rapport au galet de formage (30), dans lequel le pas de la partie de ressort (10, 12) respective est ainsi réglable.
  13. Dispositif selon l'une quelconque des revendications 9 à 12, caractérisé par des moyens de basculement du galet de formage (30) de sorte que le diamètre de la partie de ressort (10, 12) respective soit variable.
  14. Dispositif selon l'une quelconque des revendications 9 à 13, caractérisé par un élément de guidage (38), qui est agencé entre l'unité d'alimentation (2) et le galet de formage (30) et qui est déplaçable d'une position de repos à une position de fonctionnement, dans laquelle le fil métallique pour ressort (6) peut être guidé dans la direction du galet de formage (30).
  15. Dispositif selon la revendication 14, caractérisé par un autre élément de guidage (37) qui est agencé en aval du galet de formage (30), vu dans la direction du fil métallique pour ressort (6), et qui est déplaçable d'une position de repos à une position de fonctionnement, dans laquelle le fil métallique pour ressort (6) peut être guidé dans la direction de l'axe médian (11, 13) respectif.
EP09775082.2A 2008-11-25 2009-11-18 Dispositif et procédé de fabrication de ressorts Not-in-force EP2349605B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01834/08A CH699955A1 (de) 2008-11-25 2008-11-25 Verfahren und Vorrichtung zur Herstellung von Federn.
PCT/CH2009/000365 WO2010060223A1 (fr) 2008-11-25 2009-11-18 Dispositif et procédé de fabrication de ressorts

Publications (2)

Publication Number Publication Date
EP2349605A1 EP2349605A1 (fr) 2011-08-03
EP2349605B1 true EP2349605B1 (fr) 2017-11-01

Family

ID=40351763

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09775082.2A Not-in-force EP2349605B1 (fr) 2008-11-25 2009-11-18 Dispositif et procédé de fabrication de ressorts

Country Status (5)

Country Link
US (1) US9038432B2 (fr)
EP (1) EP2349605B1 (fr)
CN (1) CN102223963B (fr)
CH (1) CH699955A1 (fr)
WO (1) WO2010060223A1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008092502A1 (fr) * 2007-01-29 2008-08-07 Baumann Federn Ag Ressort de compression à deux ou plus de deux couches
DE102009007050B4 (de) 2009-01-29 2022-03-31 Keiper Seating Mechanisms Co., Ltd. Feder, insbesondere für eine Verriegelungsvorrichtung eines Fahrzeugsitzes
US8912472B1 (en) * 2010-07-19 2014-12-16 Barnes Group Inc. Induction heating of springs
JP5839714B2 (ja) * 2012-12-14 2016-01-06 サンコール株式会社 ぜんまいばねの製造方法
JP6397490B2 (ja) * 2013-06-14 2018-09-26 ノボ・ノルデイスク・エー／エス ２層ばねを有する薬剤送出装置
US9744584B2 (en) * 2014-03-25 2017-08-29 Dae Won Kang Up Co., Ltd. Hot formed coiling machine
KR101419698B1 (ko) * 2014-03-25 2014-07-21 대원강업 주식회사 열간 코일스프링 제조장치
CN104196939A (zh) * 2014-09-26 2014-12-10 无锡市天力五金弹簧厂 一种带有双层结构的弹簧
US10610029B2 (en) * 2016-01-21 2020-04-07 Sealy Technology, Llc Coil-in-coil springs with non-linear loading responses and mattresses including the same
CN107439421B (zh) * 2017-09-22 2023-06-20 吴晓彬 一种绕圈机构的连续绕圈方法
CN110026454B (zh) * 2019-04-03 2020-10-09 苏州乐赢科技咨询有限公司 一种盘管整形系统
CN112427584B (zh) * 2021-01-05 2021-10-22 苏州许本科技有限公司 一种小型弹簧弯折设备
CN113894224A (zh) * 2021-09-09 2022-01-07 昆山孚思格机电科技有限公司 一种弹簧热卷机的弹簧钢丝夹紧机构
CN113714438B (zh) * 2021-09-09 2024-06-28 昆山孚思格机电科技有限公司 一种弹簧热卷机带夹紧功能的主轴机构
CN114669690B (zh) * 2022-03-03 2022-11-22 三谷科技(东莞)有限公司 一种无刷电机绕组线径的计算装置
JP7364820B1 (ja) * 2023-06-19 2023-10-18 マルホ発條工業株式会社 コイル付きモジュール製造装置およびコイル付きモジュール製造方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE150588C (fr) * 1902-08-22
GB403920A (en) * 1932-10-24 1934-01-04 Friedrich Fuchs Apparatus for winding stepped torsion springs
US2349828A (en) * 1939-08-05 1944-05-30 Virgil W Moray Method of and apparatus for bending and forming tubing, rods, wires, and the like
US2631840A (en) 1949-01-27 1953-03-17 George H Bugenhagen Coil spring construction
US3402584A (en) * 1965-07-29 1968-09-24 Torrington Mfg Co Spring coiling machine
JPS5677691A (en) * 1979-10-11 1981-06-26 Spiral Tubing Corp Multistage coil heat exchanger
US4836514A (en) * 1985-12-30 1989-06-06 Windwinder Corporation Preloaded spring, method and apparatus for forming same
US5103543A (en) * 1989-03-02 1992-04-14 The Microspring Company, Inc. Method of making a torque transmitter
JP2675433B2 (ja) * 1990-08-27 1997-11-12 川崎製鉄株式会社 螺旋状鋼線の成形装置
DE19506422A1 (de) * 1995-02-24 1996-08-29 Schwenk Oskar Gmbh & Co Kg Koaxialfederanordnung
US5878998A (en) * 1997-08-27 1999-03-09 Hsieh; Frank Conical spring
US6584823B2 (en) * 2000-09-18 2003-07-01 L&P Property Management Company Two wire spring making machine and method
GR1006845B (el) * 2003-10-02 2010-07-05 Αναγνωστοπουλος, Αντωνιος Παναγιωτη Μεθοδος και συστημα παραγωγης ελατηριων απο συρμα κυκλικης ή αλλης διατομης
WO2008143595A1 (fr) * 2007-05-23 2008-11-27 Sipahioglu Celik Yay Ve Yan Urunleri Sanayi Ve Ticaret Limited Sirketi Ressort emboîté continu et sa fabrication

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
US9038432B2 (en) 2015-05-26
EP2349605A1 (fr) 2011-08-03
CH699955A1 (de) 2010-05-31
WO2010060223A1 (fr) 2010-06-03
CN102223963A (zh) 2011-10-19
US20110226380A1 (en) 2011-09-22
CN102223963B (zh) 2014-03-12

Similar Documents

Publication Publication Date Title
EP2349605B1 (fr) Dispositif et procédé de fabrication de ressorts
EP2988885B1 (fr) Dresseuse à réglage individuel et dispositif de changement d'outil
EP2797182B1 (fr) Dispositif de confection de câbles pour le raccourcissement, l'isolement et la confection d'un câble doté de contacts à sertir
DE69202679T2 (de) Biege-Schermaschine mit mehreren Arbeitsebenen.
EP2172109B1 (fr) Procédé de production de morceaux de pâte pourvus d'une forme au moins essentiellement triangulaire et isocèle à partir d'une bande de pâte et dispositif correspondant
EP2605987B1 (fr) Dispositif continu
EP0553724A1 (fr) Procédé et dispositif pour fabriquer des piles bien déterminées de feuilles pliées ou non-pliées ou d'objets sous forme de feuilles
EP3645188A1 (fr) Procédé de fabrication d'une pièce pliée et machine de pliage pour la mise en oeuvre du procédé
EP2877298B1 (fr) Procédé d'extrusion direct ou indirect de tubes métalliques, presse d'extrusion de tubes métalliques ainsi que tube métallique extrudé
EP0622136B1 (fr) Dispositif pour la fabrication de treillis d'armature pour panneaux en béton
DE60033174T2 (de) Energieaufnehmende lenkeinrichtung, und verfahren und vorrichtung zum zusammenbauen der lenkeinrichtung
EP3359356B1 (fr) Dispositif pour couper un tronçon d'aliments
DE2801107C3 (de) Verfahren und Vorrichtung zur Herstellung von zylindrischen Schraubenfedern aus Draht
DE102017118654B4 (de) Abstreckwerkzeuganordnung, Umformeinrichtung mit einer Abstreckwerkzeuganordnung sowie Verfahren zum Umformen eines napfförmigen Ausgangsteils
EP2428453B1 (fr) Procédé d'installation de bandes de cerclage autour de pièces d'emballage
DE102008037549B3 (de) Verfahren und Vorrichtung zur Herstellung eines rohrförmigen Werkstücks
EP3199261B1 (fr) Dispositif de fabrication d'armatures
AT406555B (de) Anlage zum abschneiden mehrerer drahtlängen von einem drahtmaterialstrang
WO2019081516A1 (fr) Procédé de fabrication d'une bobine électrique et dispositif d'enroulement
EP1350581B1 (fr) Dispositif pour le formage de fil, en particulier machine d'enroulement et de cintrage de ressorts
DE3920740A1 (de) Biegemaschine fuer metallrohrleitungen mit geringem durchmesser
DE102012212717A1 (de) Rollbiegeverfahren und -vorrichtung
DE2501408C2 (de) Vorrichtung zum Schälen stangenförmigen Gutes
DE2632283C2 (de) Vorrichtung zum Vorformen von Drähten für bewickelte Schläuche
EP4151790B1 (fr) Entraînement de barre à passettes d'un métier à tricoter en chaîne

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20110506

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SPUEHL AG

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SPUHL GMBH

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SPUEHL GMBH

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20170522

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 941553

Country of ref document: AT

Kind code of ref document: T

Effective date: 20171115

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502009014503

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20171101

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180201

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180301

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180201

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180202

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171130

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171130

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502009014503

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171118

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20171130

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

26N No opposition filed

Effective date: 20180802

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171130

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 941553

Country of ref document: AT

Kind code of ref document: T

Effective date: 20171118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20091118

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20191210

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20191216

Year of fee payment: 11

Ref country code: IT

Payment date: 20191209

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20191206

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502009014503

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20201118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201118

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210601

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201118