EP1028442B1 - Diebstahlsicherer elektrischer Schalter für ein Kraftfahrzeug - Google Patents

Diebstahlsicherer elektrischer Schalter für ein Kraftfahrzeug Download PDF

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Publication number
EP1028442B1
EP1028442B1 EP00400260A EP00400260A EP1028442B1 EP 1028442 B1 EP1028442 B1 EP 1028442B1 EP 00400260 A EP00400260 A EP 00400260A EP 00400260 A EP00400260 A EP 00400260A EP 1028442 B1 EP1028442 B1 EP 1028442B1
Authority
EP
European Patent Office
Prior art keywords
contact
rotor
electrical
cam surface
cleaning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00400260A
Other languages
English (en)
French (fr)
Other versions
EP1028442A1 (de
Inventor
Franck Thivilier
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.)
Valeo Comfort and Driving Assistance SAS
Original Assignee
Valeo Securite Habitacle SAS
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 Valeo Securite Habitacle SAS filed Critical Valeo Securite Habitacle SAS
Publication of EP1028442A1 publication Critical patent/EP1028442A1/de
Application granted granted Critical
Publication of EP1028442B1 publication Critical patent/EP1028442B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/18—Contacts characterised by the manner in which co-operating contacts engage by abutting with subsequent sliding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
    • H01H19/60—Angularly-movable actuating part carrying no contacts
    • H01H19/63—Contacts actuated by axial cams
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
    • H01H19/60—Angularly-movable actuating part carrying no contacts
    • H01H19/62—Contacts actuated by radial cams
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H27/00—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings
    • H01H27/06—Key inserted and then turned to effect operation of the switch

Definitions

  • the invention relates to an electrical switch.
  • the invention more particularly relates to a rotary electrical switch for a motor vehicle antitheft device, of the type comprising a rotor body which is rotatably mounted about its axis with respect to a stator body, and of the type in which the rotor body is rotatable between two angular positions, in particular between a neutral angular position and an angular starting position in which it causes the power supply of an equipment, in particular an electric starter of a heat engine, for example by passing by an intermediate position.
  • the rotor of the switch is rotated for example by a key or by a part integral with a lock rotor which is itself actuated with a suitable key.
  • the "on" position corresponds to the power supply of the ignition circuit of the engine of the vehicle without which the engine can not operate.
  • the "start" position causes the power supply of an electric starter motor which is able to rotate the engine shaft of the engine of the vehicle and which is intended to start the engine.
  • the power supply of the starter is obtained by means of at least one electrical blade contact comprising a stationary contact element of axial orientation carried by the stator and a hairpin contact blade which extends in an axial plane and which comprises a fixed section of axial orientation carried by the stator and a movable section and of axial orientation which is substantially parallel to the first fixed section and which is connected thereto by an intermediate upper section curved in an arc of a circle, lower free end of the movable section being capable of cooperating or not with a portion vis-à-vis contact of the fixed contact element according to the relative angular position of the rotor relative to the stator.
  • the invention therefore aims to provide a switch for a motor vehicle of the type mentioned above which avoids clogging of electrical contacts blade achieving a self-cleaning effect of the contacts.
  • the invention proposes a rotary electrical switch for a motor vehicle antitheft device, of the type comprising an upper rotor which is rotatably mounted about its axis relative to a lower stator, and of the type in which the rotor is capable of to rotate between two angular positions, in particular a neutral angular position and an angular starting position in which it causes the power supply of an equipment, in particular an electric starter of a heat engine, by means of at least one blade electrical contact having a fixed axially oriented contact member carried by the stator and a hairpin contact blade extending into an axial plane and which comprises a fixed section of axial orientation carried by the stator and a movable section and axially oriented which is substantially parallel to the first fixed section and which is connected to the latter by an intermediate upper section arcuate curve of circle, the lower free end of the movable section being capable of cooperating or not with a portion vis-à-vis contact of the fixed contact element as a function of the relative angular position of the
  • FIG. 1 shows some components belonging to a rotary switch with vertical axis A1 intended to equip a motor vehicle lock (not shown).
  • the antitheft device comprises a rotary latch which is arranged axially above the switch 10 and which can be unlocked and rotated by a corresponding key.
  • the switch 10 essentially comprises a rotor body 12 which is rotatably mounted in a stator body 14 and which is capable of acting on a series of blade-type contacts 16 which are arranged in an inner annular cylindrical chamber 20 switch 10, for selectively controlling the power supply of a number of electrical circuits of the vehicle according to the angular position of the rotor body 12 about its axis A1.
  • the rotor body 12 can for example occupy four preferred angular positions, with respect to the stator 14, which are, in order, the "stop", "accessories", “on” and “start” positions.
  • the stator body 14 of the switch 10 comprises a cylindrical housing (not shown) of axis A1.
  • the stator body 14 is delimited axially downwards by a lower bottom 26 which has an external transverse wall 28 from which extends axially towards the inside of the stator body 14, a tubular wall 30.
  • the annular wall 30 delimits thus a central cylindrical enclosure 32 and a peripheral annular enclosure 34 which both open axially upwards in the chamber 20.
  • the bottom bottom 26 may carry, for example, five blade contacts 16 which are arranged in the peripheral annular enclosure 34 and which each comprise two pins 36, 38 which extend axially downwards outside the body of the body. stator 14, through the transverse wall 28 of the bottom bottom 26, to allow the connection of the switch 10 to electrical circuits of the vehicle to be opened or closed depending on the angular position of the rotor body 12 in the stator body 14.
  • Each blade contact 16 comprises a fixed grain 40 which is arranged on an outer cylindrical face 42 of the annular wall 30 of the bottom 26, which is turned radially outwards, and which is secured to a first 36 of the connecting pins of the blade contact 16.
  • Each contact 16 also has a hairpin blade 44 which includes a first substantially fixed section 46 extending axially upwardly the second 38 of the connecting pins.
  • the first peripheral portion 46 is fixed on the inner face 48 of an outer annular wall 50 of the bottom 26 which extends vertically upwardly from the upper face of the wall 28 and which delimits the annular enclosure 34 radially towards outside.
  • the first peripheral section 46 is extended by a section 52, radially internal, which is curved radially inwards and which extends axially downwardly parallel to the section 46 so as to extend into the outer peripheral enclosure 34.
  • the second section 52 of the blade 44 carries, at a lower free end 54, a contact key 56 rotated radially inward, opposite the fixed grain 40.
  • the second section 52 of the blade 44 has a curved control surface 58, which is turned radially inwards, and on which the rotor body 12 is capable of acting to repel elastically, radially outwardly, the second section 52 of the blade 44 for the purpose of detaching the contact key 56 from the associated contact grain 40 in order to open an electrical circuit which, in the free state of the blade 44, is closed by the elastic action of the blade 44 which plates the key 56 against the grain 40.
  • the free end 54 of the blade 44 which carries the key 56 has a transverse flange 60 which is turned radially outwards and which is capable of bearing against an inner face of the first section 46 of the blade 44. in order to limit the stroke of the second section 52 radially outwardly when the rotor body 12 acts to spread it radially outwards, as will be described later.
  • Lower bottom 26 may also carry a key presence contact (not shown).
  • the rotor body 12 of the switch 10 essentially comprises an upper axial portion 82 for driving the rotor body 12, an external radial collar 84 arranged axially in the central position, and a tubular lower axial section 86 for controlling the blade contacts 16.
  • the upper axial portion 82 has an outer tubular cylindrical wall 88 which is rotatably received in the not shown housing and a central shaft 90 which extends axially to cooperate with a drive part (not shown) connected to the lock and likely to turn with the key.
  • An annular axial housing 100 which opens axially upwards, is thus defined radially between the shaft 90 and the outer cylindrical wall 88, and it receives an angular action spiral spring (not shown) which, in known manner, is designed to elastically bring back the body of rotor 12 from its angular position "start” to its angular position "on".
  • the lower axial portion 86 of the rotor body 12 comprises a tubular wall which extends axially downwards, and which is cylindrical but not of revolution.
  • the wall thus delimits an external surface 104 which constitutes a cam surface whose distance relative to the axis A1 is variable around this axis.
  • the wall is thus capable of cooperating with the control surfaces 58 of each blade contact 16 to establish or interrupt the flow of electrical current in the circuits associated with each of these contacts 16, depending on whether a curved surface 58 cooperates with the part cylindrical of revolution 106 of the outer surface 104 or with an internal radial recess 108 formed in the outer surface 104.
  • the switch 10 may also comprise means (not shown in detail) for indexing the angular position of the rotor body 12 relative to the stator body 14, and non-return means which in certain cases limit the possibility for the body 12 to rotate from one to the other of its positions, for example when the rotor body 12 has been previously brought to its starting position and is being brought back to one of its three positions of "walk", "accessories", or "stop".
  • the anti-return means prevent the rotor body 12 from being taken back to its "starting" position without having been brought back to at least in a neutral position, for example the position "accessories” or "stop".
  • each two-element electrical contact 36 and 44 is designed, in association with the rotor body 12, to be of the self-cleaning type.
  • the rotor body 12 cooperates with the intermediate section 110 of each contact blade 44 which interconnects the sections, of axial, fixed and movable orientation 52.
  • each intermediate connecting section 110 has a curved profile in a cylinder arc, that is to say an arcuate profile when considered in section by an axial plane (as can be seen from FIG. in Figure 1 and Figures 5 to 8).
  • Each contact 16, and more particularly its contact blade 44 extends in a vertical and axial plane with its intermediate curved connecting portion 110 located axially in the upper part and arranged facing the lower face 112 of the outer radial flange 84 of the rotor body 12.
  • the rotor body 12 comprises a generally frustoconical annular skirt 114 which extends axially downwards from the periphery of the outer radial flange 84.
  • the skirt 114 thus delimits a radially internal surface 116 which constitutes, for the purposes of the invention, a cleaning surface or cam path of the electrical contacts 16.
  • the skirt 114 is not continuous, that is to say that it is interrupted here by two emergent recesses of radial orientation 118 each of which is delimited by two faces transversely axial orientation 120 and 122.
  • the recesses or recesses 118 are angularly arranged opposite the recesses 108 of the surface 104 for controlling the electrical contacts 16.
  • the internal profile forming a cleaning cam surface 116 of the skirt 114 is here a frustoconical profile of revolution which is intended to cooperate, as will be explained later, with the radially external part, facing intermediate connecting sections 110 of the contact blades 44.
  • the side edges of the portion 124 are beveled and / or have a rounded "non-aggressive" profile. Part 124 can also be thinned locally.
  • the electrical contact 16 is illustrated in its position, or state, open, that is to say that the grain 56 carried by the contact blade 44 is not in contact with the fixed grain 40 carried by the pin 36 of the stator 14.
  • the convex portion 58 of the movable section or strand 52 of the contact blade 44 cooperates with the cylindrical control surface 106 of the tubular lower portion 86 of the rotor 12.
  • the arrangement of the contact blade 44 and the skirt 114 is such that the upper intermediate loop 110, in the form of a loop, of the blade 44 is compressed transversely in an axial plane between the cylindrical surface 126 of the portion upper tubular section 86 and the frustoconical inner surface forming cam 116 of the skirt 114.
  • the rotor 12 is rotated with respect to the stator 14, for example in the direction indicated by the arrow F, of FIG. bring the curved control surface 58 facing a recess 108 of the tubular extension 86.
  • the contact position of the moving grain 56 is determined by its radial inward support against the fixed grain 40.
  • the corresponding angular sector of the skirt 114 extends angularly slightly beyond the portion opposite the cylindrical surface 106 so that the "loosening" of the upper part 110 of the contact blade 44 does not occur. only slightly after the closing of the electrical contact 16.
  • FIG. 7 This relaxed state is illustrated in FIG. 7, in which it can be seen that the curved control portion 58 is always facing a recess 108 while the upper part of the contact blade 44 constituted by the intermediate connecting curve section 110 is more opposite a sector of the skirt 114 but is opposite a recess 118, that is to say that it is no longer confined radially and that the contact blade 44 thus occupies its rest position shown in Figure 7.
  • friction occurs between the contacting faces of the fixed and movable grains 40 leading to a self-cleaning effect of these two surfaces in contact, thus eliminating them from any impurity. dirt, or oxide layer that may form there in use.
  • the opening of the contact 16 can also be carried out, alternatively, by rotating the rotor 12 relative to the stator 14 in the same direction as that indicated by the arrow F, the other active sector of the skirt 114 delimited by the facet 122 then cooperating with the upper loop 110 of the contact blade 44 to first cause the self-cleaning effect before the cylindrical surface 106 cooperates again with the curved portion 58 of the movable section 52 of the contact blade 44 to cause the opening of the electrical contact 16.

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Burglar Alarm Systems (AREA)

Claims (9)

  1. Elektrischer Drehschalter für eine Diebstahlsicherung eines Kraftfahrzeugs, vom Typ mit einem oberen Rotor (12), der gegenüber einem unteren Stator (14) um seine Achse (A1) drehbar gelagert ist, und bei welchem der Rotor (12) zwischen zwei Winkelstellungen drehbar ist, insbesondere zwischen einer neutralen Winkelstellung und einer Startwinkelstellung, in welcher er die Stromversorgung einer Einrichtung, insbesondere eines elektrischen Anlassers eines Verbrennungsmotors über einen elektrischen Zungenkontakt hervorruft, der ein feststehendes Kontaktelement (36) enthält, das axial ausgerichtet ist und vom Stator (14, 26) getragen wird, sowie eine haarklammerartige Kontaktzunge (44), die sich in einer axialen Ebene erstreckt und einen feststehenden Abschnitt (46) aufweist, der axial ausgerichtet ist und von dem Stator (14, 26) getragen wird, sowie einen axial ausgerichteten beweglichen Abschnitt (52), der im wesentlichen parallel zum ersten feststehenden Abschnitt (36) verläuft und mit letzterem über einen oberen, kreisbogenförmig gebogenen Zwischenabschnitt (110) verbunden ist, wobei das freie untere Ende (56) des beweglichen Abschnitts (52) je nach relativer Winkelstellung des Rotors (12) gegenüber dem Stator (14) mit einem entgegengesetzten Kontaktbereich (40) des feststehenden Kontaktelements (36) zusammenwirken kann oder nicht,
    dadurch gekennzeichnet, dass der Rotor eine Kurvenfläche (114, 116, 118) zum Reinigen des elektrischen Kontakts (36, 40, 44, 56) aufweist, die mit einem entgegengesetzten Bereich (124) des Zwischenabschnitts (110) der Kontaktzunge (44) zusammenwirkt, um die Kontaktzunge (44) insgesamt in ihrer Mittelaxialebene elastisch zu verformen und eine relative Verlagerung des freien unteren Endes (56) des beweglichen Abschnitts (52) gegenüber dem Kontaktbereich (40) des feststehenden Kontaktendes (36) hervorzurufen, mit welchem es in Kontakt steht, wenn der Rotor (12) das Schließen bzw. Öffnen des elektrischen Kontakts (36, 40, 44, 56) hervorruft.
  2. Elektrischer Schalter nach Anspruch 1, dadurch gekennzeichnet, dass die Kurvenfläche (116, 116) zum Reinigen des Kontakts (36, 40, 44, 56) innerhalb eines zylindrischen Ringmantels (114) ausgebildet ist, der axial ausgerichtet ist und mit dem dem gebogenen Zwischenabschnitt (110) der beweglichen Kontaktzunge (44) entgegengesetzten radial äußeren Bereich (124) zusammenwirkt, so dass eine senkrechte Relativverlagerung des freien unteren Endes (56) des beweglichen Abschnitts (46) gegenüber dem Kontaktbereich (40) des feststehenden Kontaktelements (36) hervorgerufen wird.
  3. Schalter nach Anspruch 2, dadurch gekennzeichnet, dass die Reinigungskurvenfläche einen aktiven Drehwinkelsektor (114, 116) enthält, der mit dem gebogenen Zwischenabschnitt (124) der Kontaktzunge (44) zusammenwirkt, wenn der elektrische Kontakt (36, 40, 44, 56) geöffnet ist.
  4. Schalter nach Anspruch 3, dadurch gekennzeichnet, dass der aktive Sektor (114, 116) der Reinigungskurvenfläche im Winkel so verläuft, dass er mit dem gebogenen Zwischenabschnitt (110, 124) der Kontaktzunge (44) im Endbereich der Winkelwegstrecke des Rotors (12), in dem das Schließen des elektrischen Kontakts (36, 40, 44, 56) hervorgerufen wird, oder im Anfangsbereich der Winkelwegstrecke des Rotors (12), in dem das Öffnen des elektrischen Kontakts (36, 40, 44, 56) hervorgerufen wird, zusammenwirkt.
  5. Schalter nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass der aktive Sektor (114, 116) der Reinigungskurvenfläche ein kegelstumpfförmiges Profil aufweist.
  6. Schalter nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, dass der aktive Sektor (114, 116) der Reinigungskurvenfläche im Winkel von zwei Ausnehmungen (118) begrenzt wird, die in dem Mantel (114) des Rotors (12) ausgebildet sind.
  7. Schalter nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, dass der bewegliche Abschnitt (52) der Kontaktzunge (44) eine Steuerfläche (58) enthält, auf welche der Rotor (12, 104, 106, 108) einwirken kann, um den beweglichen Abschnitt (52) der Kontaktzunge (44) elastisch radial nach außen zu verschieben, um den normalerweise geschlossenen elektrischen Kontakt (36, 40, 44, 56) entgegen der Eigenelastizität der Kontaktzunge (44) zu öffnen.
  8. Schalter nach Anspruch 7, dadurch gekennzeichnet, dass die Steuerfläche (58) eine gewölbte Fläche ist, die radial nach innen gerichtet ist und mit einer Steuerkurvenfläche (104, 106, 108) des Rotors (12) zusammenwirkt.
  9. Schalter nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass der gebogene Zwischenabschnitt (110, 124) der Kontaktzunge, der mit der Reinigungskurvenfläche (116, 118) zusammenwirkt, ein die Kurvenfläche nicht angreifendes Profil aufweist.
EP00400260A 1999-02-12 2000-01-31 Diebstahlsicherer elektrischer Schalter für ein Kraftfahrzeug Expired - Lifetime EP1028442B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9901686 1999-02-12
FR9901686A FR2789797B1 (fr) 1999-02-12 1999-02-12 Commutateur electrique d'antivol de vehicule automobile

Publications (2)

Publication Number Publication Date
EP1028442A1 EP1028442A1 (de) 2000-08-16
EP1028442B1 true EP1028442B1 (de) 2006-08-09

Family

ID=9541934

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00400260A Expired - Lifetime EP1028442B1 (de) 1999-02-12 2000-01-31 Diebstahlsicherer elektrischer Schalter für ein Kraftfahrzeug

Country Status (8)

Country Link
US (1) US6143994A (de)
EP (1) EP1028442B1 (de)
AR (1) AR022574A1 (de)
BR (1) BR0000368A (de)
DE (1) DE60029853T2 (de)
ES (1) ES2269073T3 (de)
FR (1) FR2789797B1 (de)
MX (1) MXPA00001615A (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3587721B2 (ja) * 1999-04-12 2004-11-10 アルプス電気株式会社 クリック付き回転型電気部品
US20020175566A1 (en) * 2001-05-23 2002-11-28 Allen Sheldon J. Anti-theft ignition switch assembly
DE20303116U1 (de) * 2003-02-20 2003-07-17 Takata Petri Ag Schalter mit selbstreinigenden Kontakten
JP5026890B2 (ja) * 2007-08-27 2012-09-19 株式会社マキタ 電動工具の正逆切替装置
US20090170408A1 (en) * 2007-12-31 2009-07-02 Lee C C Integrated Circuit Package Contact Cleaning
US8822852B2 (en) * 2012-11-13 2014-09-02 Solteam Electronics Co., Ltd. Multi-level rotary switch
DE102013000904B4 (de) * 2013-01-18 2023-08-24 Kostal Automobil Elektrik Gmbh & Co. Kg Schaltkontaktfeder für einen elektrischen Schalter sowie entsprechender Schalter
US10072433B2 (en) 2013-09-06 2018-09-11 Gary Dilley Swimming lane marker
EP4111099A4 (de) * 2019-09-14 2024-01-31 Ferel Elektronik San. Ve Tic. A.S. Drehbares steuerelement für ein haushaltsgerät

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1133039A (en) * 1967-05-12 1968-11-06 Carr Fastener Co Ltd Rotary switch
DE2937925C3 (de) * 1979-09-19 1982-04-15 Siemens AG, 1000 Berlin und 8000 München Schalter
DE3644212A1 (de) * 1986-12-23 1988-09-01 Braun Ag Elektrischer schalter
US5568860A (en) * 1994-06-23 1996-10-29 Methode Electronics, Inc. Pivot point contact with scrubbing action switch
FR2763421B1 (fr) * 1997-05-27 1999-06-25 Valeo Securite Habitacle Commutateur electrique d'antivol comportant des moyens d'anti-retour
US5865304A (en) * 1997-08-04 1999-02-02 Hubbell Incorporated Rotary-actuated electrical switch

Also Published As

Publication number Publication date
FR2789797B1 (fr) 2001-06-01
BR0000368A (pt) 2000-09-26
ES2269073T3 (es) 2007-04-01
AR022574A1 (es) 2002-09-04
DE60029853D1 (de) 2006-09-21
FR2789797A1 (fr) 2000-08-18
US6143994A (en) 2000-11-07
MXPA00001615A (es) 2002-03-08
DE60029853T2 (de) 2007-08-30
EP1028442A1 (de) 2000-08-16

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