EP0703021A2 - Method of manufacturing a two-part cage nut - Google Patents

Method of manufacturing a two-part cage nut Download PDF

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Publication number
EP0703021A2
EP0703021A2 EP95113814A EP95113814A EP0703021A2 EP 0703021 A2 EP0703021 A2 EP 0703021A2 EP 95113814 A EP95113814 A EP 95113814A EP 95113814 A EP95113814 A EP 95113814A EP 0703021 A2 EP0703021 A2 EP 0703021A2
Authority
EP
European Patent Office
Prior art keywords
base plate
plate
bent
side walls
holding
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
EP95113814A
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German (de)
French (fr)
Other versions
EP0703021B1 (en
EP0703021A3 (en
Inventor
Ralph Golczyk
Klaus Hullmann
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.)
A Raymond GmbH and Co KG
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A Raymond GmbH and Co KG
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 A Raymond GmbH and Co KG filed Critical A Raymond GmbH and Co KG
Publication of EP0703021A2 publication Critical patent/EP0703021A2/en
Publication of EP0703021A3 publication Critical patent/EP0703021A3/en
Application granted granted Critical
Publication of EP0703021B1 publication Critical patent/EP0703021B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/24—Making other particular articles nuts or like thread-engaging members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00

Definitions

  • the invention relates to a method for producing a two-part cage nut from a sheet metal plate, consisting of a holding part and a nut part slidably mounted thereon.
  • the nut part can be provided with a threaded sleeve for metric thread as well as with a catchy sheet metal thread embossing.
  • the displaceable mounting of the nut part serves the purpose that the nut can align itself to the screw axis within certain limits.
  • the manufacture is usually carried out in such a way that the holding part with its lateral limiting tabs (the so-called cage) and the mother part are punched and worked separately from one another, that the mother part is then applied with its base plate to the holding plate and finally the lateral limiting tabs until the side edges overlap be bent around the base plate (EP 0 391 764 B1).
  • This manufacturing process is relatively expensive because the separately manufactured individual parts for assembling the mother part must first be brought together in the correct position and then connected to one another in a further operation.
  • the object of the invention is to design and coordinate the punching and bending steps required to produce the cage nut so that the positioning of the nut part and the shearing off of the board can be carried out in one operation without auxiliary work.
  • the base plate of the nut part initially remains connected to the holding plate via a narrow web during punching out of the sheet metal blank, that the base plate is then bent around the web and pressed parallel to the holding plate between the raised side walls, that the side walls are then bent over to cover the side edges of the base plate and finally the base plate is separated from the holding plate by shearing off the bent web.
  • the holding part and the mother part can be produced on the same production tool in a continuous work sequence and the assembly of the mother part can be integrated into the production tool. It is particularly advantageous here if the boundary webs are corresponding
  • the cage nut shown in Figures 1 to 4 comprises a holding part 1 and a nut part 2 slidably mounted thereon, which consists of a base plate 3 and a threaded sleeve 4 molded therein.
  • the holding part 1 in turn consists of a holding plate 5 and a clamping leg 6 attached to it in a C-shape.
  • two limiting webs 7 and 8 are bent up over the edge of the base plate 3 on the holding plate 5 .
  • the support plate 5 formed between the ribs 7 and 8 on each side of side walls 9 and, as shown in Figure 2 around bent over the edges 3 'of the base plate 3 so that the nut member 2 is longitudinally displaceably guided between the limiting webs 7 and 8 .
  • the cage nut can be plugged onto a carrier plate 10 with an oval fastening hole 11 and screwed by a screw 12 to the screwing area 13 of a component (not shown ) , tolerance compensation being made possible by the displaceable mounting of the nut part 2 on the holding part 1 becomes.
  • FIG. 5 shows the holding part 1 punched out of a sheet metal blank with the nut part 2 connected via a connecting web 14 , in which the threaded sleeve 4 is already formed by deep drawing.
  • the holding plate 5 and the clamping leg 6 each have an oval through hole 15 and 16 in the central axis.
  • the cage nut is shaped and assembled in the following process steps:
  • the mother part 2 with its base plate 3 is bent around the connecting web 14 in the direction of the arrow M1 and pressed down between the already raised side walls 9 and the front and rear limiting webs 7 and 8 parallel to the holding plate 5 (FIG. 6).
  • the base plate 3 is separated from the holding plate 5 by the bent connecting web 14 being sheared off by a knife 18 which is moved in the direction of the arrow M 3 (FIG. 8th).
  • the shear area 17 is arranged so that - seen from the nut part 2 - it closes with the outer surface of the bent-up boundary webs 7 . In this way, the predominant part of the connecting web 14 that is no longer required can be cleanly separated.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Dowels (AREA)
  • Forging (AREA)
  • Coating With Molten Metal (AREA)
  • Automatic Assembly (AREA)

Abstract

The method involves erecting side walls (9) at right angles, while during punching out of the steel sheet, the base plate (3) of the nut section (2) remains connected to the retainer plate (5) via a narrow web (14). The base plate is bent around the web, and pressed down between the side walls, parallel to the retainer plate. The side walls are bent, until they cover the side edges of the base plate. This is separated from the retainer plate by cutting the web. Two webs (7,8) are punched out of the retainer plate, to limit the longitudinal movement of the base plate.

Description

Die Erfindung bezieht sich auf ein Verfahren zur Herstellung einer zweiteiligen Käfigmutter aus einer Blechplatine, bestehend aus einem Halteteil und einem darauf verschiebbar gelagerten Mutterteil. Das Mutterteil kann hierbei sowohl mit einer Gewindehülse für metrisches Gewinde als auch mit einer eingängigen Blechgewindeprägung versehen sein. Die verschiebbare Lagerung des Mutterteils dient dem Zweck, daß die Mutter sich in gewissen Grenzen zur Schraubenachse ausrichten kann.The invention relates to a method for producing a two-part cage nut from a sheet metal plate, consisting of a holding part and a nut part slidably mounted thereon. The nut part can be provided with a threaded sleeve for metric thread as well as with a catchy sheet metal thread embossing. The displaceable mounting of the nut part serves the purpose that the nut can align itself to the screw axis within certain limits.

Die Herstellung erfolgt üblicherweise so, daß der Halteteil mit seinen seitlichen Begrenzungslappen (der sogenannte Käfig) und das Mutterteil getrennt voneinander ausgestanzt und gearbeitet werden, daß dann das Mutterteil mit seiner Grundplatte auf die Halteplatte aufgebracht wird und schließlich die seitlichen Begrenzungslappen bis zur Überdeckung der Seitenkanten der Grundplatte herumgebogen werden (EP 0 391 764 B1).The manufacture is usually carried out in such a way that the holding part with its lateral limiting tabs (the so-called cage) and the mother part are punched and worked separately from one another, that the mother part is then applied with its base plate to the holding plate and finally the lateral limiting tabs until the side edges overlap be bent around the base plate (EP 0 391 764 B1).

Dieses Herstellungsverfahren ist verhältnismäßig teuer, da die getrennt hergestellten Einzelteile zum Montieren des Mutterteils zunächst lagerichtig zusammengeführt und dann in einem weiteren Arbeitsgang miteinander verbunden werden müssen.This manufacturing process is relatively expensive because the separately manufactured individual parts for assembling the mother part must first be brought together in the correct position and then connected to one another in a further operation.

Aufgabe der Erfindung ist es, die zur Herstellung der Käfigmutter erforderlichen Stanz- und Biegeschritte so zu gestalten und zu koordinieren, daß das Positionieren des Mutterteils sowie das Abscheren von der Platine ohne Hilfsarbeiten in einem Arbeitsgang durchgeführt werden kann.The object of the invention is to design and coordinate the punching and bending steps required to produce the cage nut so that the positioning of the nut part and the shearing off of the board can be carried out in one operation without auxiliary work.

Diese Aufgabe wird nach der vorliegenden Erfindung dadurch gelöst, daß die Grundplatte des Mutterteils beim Ausstanzen aus der Blechplatine mit der Halteplatte zunächst über einen schmalen Steg verbunden bleibt, daß die Grundplatte sodann um den Steg herumgebogen und zwischen die hochgestellten Seitenwände parallel zur Halteplatte gedrückt wird, daß dann die Seitenwände bis zur Überdeckung der Seitenkanten der Grundplatte herumgebogen werden und schließlich die Grundplatte von der Halteplatte durch Abscheren des umgebogenen Steges getrennt wird.This object is achieved in accordance with the present invention in that the base plate of the nut part initially remains connected to the holding plate via a narrow web during punching out of the sheet metal blank, that the base plate is then bent around the web and pressed parallel to the holding plate between the raised side walls, that the side walls are then bent over to cover the side edges of the base plate and finally the base plate is separated from the holding plate by shearing off the bent web.

Dadurch, daß das Mutterteil erst im letzten Arbeitsschritt von der Halteplatte getrennt wird, können Halteteil und Mutterteil auf dem gleichen Produktionswerkzeug in einer kontinuierlichen Arbeitsfolge hergestellt und die Montage des Mutterteils in das Produktionswerkzeug integriert werden. Hierbei ist es besonders vorteilhaft, wenn die Begrenzungsstege entsprechendBecause the mother part is only separated from the holding plate in the last working step, the holding part and the mother part can be produced on the same production tool in a continuous work sequence and the assembly of the mother part can be integrated into the production tool. It is particularly advantageous here if the boundary webs are corresponding

den Angaben im Anspruch 2 an beiden Enden der gelochten Halteplatte aus der Platine ausgestanzt und hochgebogen werden und nach Anspruch 3 die beiderseits des Verbindungssteges angeordneten Begrenzungsstege so hochgebogen werden, daß der Abscherbereich - vom Gewindeteil aus gesehen - mit der Außenfläche der hochgebogenen Begrenzungsstege abschließt.the information in claim 2 at both ends of the perforated holding plate are punched out of the board and bent up and according to claim 3 the limiting webs arranged on both sides of the connecting web are bent up so that the shear area - seen from the threaded part - closes with the outer surface of the bent-up webs.

Das erfindungsgemäße Herstellungsverfahren und die nach diesem Verfahren hergestellte Käfigmutter soll nachfolgend anhand der Zeichnung beschrieben werden. Es zeigt:

Fig. 1
die erfindungsgemäß hergestellte Käfigmutter in Seitenansicht,
Fig. 2
die gleiche Käfigmutter im Schnitt nach Linie II-II in Figur 1,
Fig. 3
die gleiche Käfigmutter in Draufsicht,
Fig. 4
die Käfigmutter im Einsatz,
Fig. 5
ein aus der Blechplatine ausgestanztes Halteteil mit Mutterteil in Draufsicht und
Fig. 6 - 8
die erfindungsgemäße Montagefolge bei der Herstellung der Käfigmutter.
The manufacturing method according to the invention and the cage nut produced by this method will be described below with reference to the drawing. It shows:
Fig. 1
the cage nut produced according to the invention in side view,
Fig. 2
the same cage nut in section along line II-II in Figure 1,
Fig. 3
the same cage nut in top view,
Fig. 4
the cage nut in use,
Fig. 5
a punched out of the sheet metal holding part with the mother part in plan view and
6 - 8
the assembly sequence according to the invention in the manufacture of the cage nut.

Die in den Figuren 1 bis 4 dargestellte Käfigmutter umfaßt ein Halteteil 1 und ein darauf verschiebbar gelagertes Mutterteil 2, welches aus einer Grundplatte 3 und einer darin eingeformten Gewindehülse 4 besteht.The cage nut shown in Figures 1 to 4 comprises a holding part 1 and a nut part 2 slidably mounted thereon, which consists of a base plate 3 and a threaded sleeve 4 molded therein.

Das Halteteil 1 besteht seinerseits aus einer Halteplatte 5 und einem daran C-förmig angesetzten Klemmschenkel 6. Auf der Halteplatte 5 sind zur Begrenzung des Verschiebeweges der Grundplatte 3 vor und hinter dieser Grundplatte je zwei Begrenzungsstege 7 und 8 bis über den Rand der Grundplatte 3 hochgebogen. Außerdem sind an der Halteplatte 5 zwischen den Stegen 7 und 8 auf jeder Seite Seitenwände 9 angeformt und, wie aus Figur 2 ersichtlich, über die Kanten 3' der Grundplatte 3 derart herumgebogen, daß das Mutterteil 2 zwischen den Begrenzungsstegen 7 und 8 längsverschieblich geführt ist.The holding part 1 in turn consists of a holding plate 5 and a clamping leg 6 attached to it in a C-shape. In order to limit the displacement of the base plate 3 in front of and behind this base plate, two limiting webs 7 and 8 are bent up over the edge of the base plate 3 on the holding plate 5 . In addition to the support plate 5 formed between the ribs 7 and 8 on each side of side walls 9 and, as shown in Figure 2, around bent over the edges 3 'of the base plate 3 so that the nut member 2 is longitudinally displaceably guided between the limiting webs 7 and 8 .

Wie aus Figur 4 ersichtlich, kann die Käfigmutter auf einer Trägerplatte 10 mit einem ovalen Befestigungsloch 11 aufgesteckt und durch eine Schraube 12 mit dem Verschraubungsbereich 13 eines nicht dargestellten Bauteils verschraubt werden, wobei durch die verschiebbare Lagerung des Mutterteils 2 auf dem Halteteil 1 ein Toleranzausgleich ermöglicht wird.As can be seen from FIG. 4, the cage nut can be plugged onto a carrier plate 10 with an oval fastening hole 11 and screwed by a screw 12 to the screwing area 13 of a component (not shown ) , tolerance compensation being made possible by the displaceable mounting of the nut part 2 on the holding part 1 becomes.

Figur 5 zeigt das aus einer Blechplatine ausgestanzte Halteteil 1 mit über einem Verbindungssteg 14 verbundenen Mutterteil 2, bei welchem die Gewindehülse 4 bereits durch Tiefziehen ausgeformt ist. Die Halteplatte 5 sowie der Klemmschenkel 6 weisen in der Mittelachse je ein ovales Durchgangsloch 15 und 16 auf.FIG. 5 shows the holding part 1 punched out of a sheet metal blank with the nut part 2 connected via a connecting web 14 , in which the threaded sleeve 4 is already formed by deep drawing. The holding plate 5 and the clamping leg 6 each have an oval through hole 15 and 16 in the central axis.

Wie aus der Montagefolge nach den Figuren 6 bis 8 ersichtlich, erfolgt die Ausformung und der Zusammenbau der Käfigmutter in folgenden Verfahrensschritten:As can be seen from the assembly sequence according to FIGS. 6 to 8, the cage nut is shaped and assembled in the following process steps:

Zunächst wird das Mutterteil 2 mit seiner Grundplatte 3 um den Verbindungssteg 14 in Richtung des Pfeiles M1 herumgebogen und zwischen die bereits hochgestellten Seitenwände 9 und die vorderen und hinteren Begrenzungsstege 7 und 8 parallel zur Halteplatte 5 niedergedrückt (Figur 6).First, the mother part 2 with its base plate 3 is bent around the connecting web 14 in the direction of the arrow M1 and pressed down between the already raised side walls 9 and the front and rear limiting webs 7 and 8 parallel to the holding plate 5 (FIG. 6).

Sodann werden die beiden Seitenwände 9 in Richtung der Pfeile M2 bis zur Überdeckung der Seitenkanten 3' der Grundplatte 3 herumgebogen, wobei zwischen den Seitenkanten 3' und den Seitenwänden 9 gerade soviel Abstand verbleibt, daß die Grundplatte 3 auf der Halteplatte 5 leicht verschiebbar ist (Figur 7).Then the two side walls 9 are bent in the direction of the arrows M2 until the side edges 3 'of the base plate 3 overlap, with just enough distance remaining between the side edges 3' and the side walls 9 that the base plate 3 is easily displaceable on the holding plate 5 ( Figure 7).

Nachdem die Gewindehülse 4 mit Grundplatte 3 auf der Halteplatte 5 ihren Platz gefunden hat, wird die Grundplatte 3 von der Halteplatte 5 getrennt, indem der umgebogene Verbindungssteg 14 durch ein Messer 18 abgeschert wird, welches in Richtung des Pfeiles M 3 bewegt wird (Fig.8). Hierbei ist der Abscherbereich 17 so angeordnet, daß er - vom Mutterteil 2 aus gesehen - mit der Außenfläche der hochgebogenen Begrenzungsstege 7 abschließt. So kann der überwiegende Teil des nicht mehr benötigten Verbindungssteges 14 sauber abgetrennt werden.After the threaded sleeve 4 with the base plate 3 has found its place on the holding plate 5 , the base plate 3 is separated from the holding plate 5 by the bent connecting web 14 being sheared off by a knife 18 which is moved in the direction of the arrow M 3 (FIG. 8th). Here, the shear area 17 is arranged so that - seen from the nut part 2 - it closes with the outer surface of the bent-up boundary webs 7 . In this way, the predominant part of the connecting web 14 that is no longer required can be cleanly separated.

Claims (3)

Verfahren zur Herstellung einer zweiteiligen Käfigmutter aus einer Blechplatine mit einem Halteteil (1) und einem darauf verschiebbar gelagerten Mutterteil (2), welches aus einer Grundplatte (3) und einer darin eingeformten Gewindehülse (4) besteht, wobei von der gelochten Halteplatte (5) des Halteteils (1) Seitenwände (9) über den Rand der Grundplatte (3) herumgebogen sind,
dadurch gekennzeichnet, daß die Seitenwände (9) zuerst etwa rechtwinklig hochgestellt werden, während die Grundplatte (3) des Mutterteils (2) beim Ausstanzen aus der Blechplatine mit der Halteplatte (5) zunächst über einen schmalen Steg (14) verbunden bleibt, daß die Grundplatte (3) sodann um den Steg (14) herumgebogen und zwischen den hochgestellten Seitenwänden (9) parallel zur Halteplatte (5) niedergedrückt wird, daß dann die Seitenwände (9) bis zur Überdeckung der Seitenkanten (3') der Grundplatte (3) herumgebogen werden und schließlich die Grundplatte (3) von der Halteplatte (5) durch Abscheren des umgebogenen Steges (14) getrennt wird.Method for producing a two-part cage nut from a sheet metal plate with a holding part (1) and a nut part (2) slidably mounted thereon, which consists of a base plate (3) and a threaded sleeve (4) molded therein, the perforated holding plate (5) the holding part (1) side walls (9) are bent over the edge of the base plate (3),
characterized in that the side walls (9) are first raised approximately at a right angle, while the base plate (3) of the nut part (2) when punched out of the sheet metal plate with the holding plate (5) initially remains connected via a narrow web (14) that the Base plate (3) then bent around the web (14) and pressed down between the raised side walls (9) parallel to the holding plate (5), that the side walls (9) then overlap the side edges (3 ') of the base plate (3) are bent around and finally the base plate (3) is separated from the holding plate (5) by shearing off the bent web (14). Verfahren zur Herstellung einer zweiteiligen Käfigmutter nach Anspruch 1, dadurch gekennzeichnet, daß zur Begrenzung der Längsbewegung der Grundplatte (3) aus der Halteplatte (5) auf jeder Seite je zwei Stege (7 und 8) ausgestanzt und bis über die Kanten (3') der Grundplatte (3) hochgebogen sind.Method for producing a two-part cage nut according to claim 1, characterized in that in order to limit the longitudinal movement of the base plate (3), two webs (7 and 8) are punched out of the holding plate (5) on each side and up to the edges (3 ') the base plate (3) are bent up. Verfahren zur Herstellung einer zweiteiligen Käfigmutter nach Anspruch 2, dadurch gekennzeichnet, daß die zwei Begrenzungsstege (7) beiderseits des Verbindungssteges (14) derart hochgebogen sind, daß der Abscherbereich (17) des Verbindungssteges (14) - von dem Gewindeteil (2) aus gesehen - mit der Außenfläche der hochgebogenen Begrenzungsstege (7) abschließt.Method for producing a two-part cage nut according to claim 2, characterized in that the two limiting webs (7) on both sides of the connecting web (14) are bent up in such a way that the shear area (17) of the connecting web (14) - seen from the threaded part (2) - Closes with the outer surface of the curved boundary webs (7).
EP95113814A 1994-09-20 1995-09-02 Method of manufacturing a two-part cage nut Expired - Lifetime EP0703021B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4433470 1994-09-20
DE4433470A DE4433470C1 (en) 1994-09-20 1994-09-20 Method of making a two-part cage nut

Publications (3)

Publication Number Publication Date
EP0703021A2 true EP0703021A2 (en) 1996-03-27
EP0703021A3 EP0703021A3 (en) 1996-06-12
EP0703021B1 EP0703021B1 (en) 1999-02-17

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ID=6528679

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95113814A Expired - Lifetime EP0703021B1 (en) 1994-09-20 1995-09-02 Method of manufacturing a two-part cage nut

Country Status (7)

Country Link
US (1) US5624319A (en)
EP (1) EP0703021B1 (en)
JP (1) JP2644462B2 (en)
BR (1) BR9504073A (en)
CZ (1) CZ285474B6 (en)
DE (1) DE4433470C1 (en)
ES (1) ES2130486T3 (en)

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EP0391764B1 (en) 1989-03-24 1992-05-13 Rapid S.A. Caged nut

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US2282851A (en) * 1939-11-15 1942-05-12 Bert L Quarnstrom Clinch nut
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US4676706A (en) * 1985-05-15 1987-06-30 Nifco, Inc. Clip nut
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009000456U1 (en) 2009-01-15 2009-03-12 Acument Gmbh & Co. Ohg slide nut
US9121431B2 (en) 2010-08-31 2015-09-01 Ruia Global Fasteners Ag Cage nut

Also Published As

Publication number Publication date
JPH08187537A (en) 1996-07-23
DE4433470C1 (en) 1996-02-15
CZ244595A3 (en) 1996-04-17
US5624319A (en) 1997-04-29
EP0703021B1 (en) 1999-02-17
EP0703021A3 (en) 1996-06-12
JP2644462B2 (en) 1997-08-25
CZ285474B6 (en) 1999-08-11
BR9504073A (en) 1996-09-24
ES2130486T3 (en) 1999-07-01

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