EP0444169B1 - Werkzeug für biegepresse zum freibiegen - Google Patents

Werkzeug für biegepresse zum freibiegen Download PDF

Info

Publication number
EP0444169B1
EP0444169B1 EP90912757A EP90912757A EP0444169B1 EP 0444169 B1 EP0444169 B1 EP 0444169B1 EP 90912757 A EP90912757 A EP 90912757A EP 90912757 A EP90912757 A EP 90912757A EP 0444169 B1 EP0444169 B1 EP 0444169B1
Authority
EP
European Patent Office
Prior art keywords
folding
dies
shims
tooling
driving device
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
EP90912757A
Other languages
English (en)
French (fr)
Other versions
EP0444169A1 (de
Inventor
Willem Dieperink
Claude Croisier
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.)
Beyeler Raskin SA
Original Assignee
Beyeler Raskin SA
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 Beyeler Raskin SA filed Critical Beyeler Raskin SA
Publication of EP0444169A1 publication Critical patent/EP0444169A1/de
Application granted granted Critical
Publication of EP0444169B1 publication Critical patent/EP0444169B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
    • B21D5/0209—Tools therefor
    • B21D5/0227—Length adjustment of the die
    • 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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
    • B21D5/0209—Tools therefor

Definitions

  • the present invention relates to a tool for press brake for folding in air.
  • the displacement of the half-dies of the tool described in this document is carried out using an endless screw, arranged perpendicular to the folding plane and comprising a threaded part on the left and a threaded part on the right, these parts cooperating respectively with nuts integral with one and the other of the half-dies.
  • the half-dies are locked in position relative to the table by means of pairs of inclined shims, each of the shims of a couple being fixed respectively one on the half-matrix and the other on a traction connected to a drive device.
  • This tool has the drawback of requiring two separate devices for moving and blocking the half-dies, which makes the operation of modifying the complicated and imprecise matrix, the separate execution of the blocking being able in particular to modify the positioning of the half-matrices.
  • the object of the present invention is to propose a tool for a press brake comprising two half-dies making it possible to remedy the drawbacks of the tool described in this document DE-A1- 32 35 775.
  • the invention relates to a tool for press brake for folding in air as defined in claim 1.
  • the tool shown in Figures 1 to 5 is mounted on the table of the lower deck 22, the table having two parts 12, 12 ′ arranged on either side of the folding plane 23 defined by the movement of the edge of the end of the punch 3, 4.
  • Two half-dies 1, 1 ′ are arranged on the respective parts 12, 12 ′ of the table, on either side of the folding plane 23 and symmetrically with respect to this plane.
  • Each of the two half-dies has a vertical longitudinal face 24, 24 ′, these two said vertical faces being spaced from one another, so as to present a vertical space constituting the folding V.
  • Each of the two half-dies 1, 1 ′ is arranged on one of the corresponding parts 12, 12 ′ of the table so as to be able to slide laterally relative to these.
  • the tool includes a symmetrical actuation device for the displacement of each of the two half-dies.
  • This device comprises for each of the half-dies a plurality of pairs of inclined shims 9, 10, respectively 9 ′, 10 ′, arranged horizontally at the upper external part of the half-matrix 1, respectively 1 ′, covered by cover plates 8, respectively 8 ′.
  • the shims 9, respectively 9 ′ which can be considered as fixed shims, are fixed to the half-die 1, respectively 1 ′, using fixing devices 20, respectively 20 ′, for example by screwing.
  • the wedges 10, respectively 10 ′ which can be considered as mobile wedges, are fixed to a drawbar 11, respectively 11 ′, using fixing devices 21, respectively 21 ′, for example by screwing .
  • the respective ends of the drawbars 11 and 11 ′ are fixed on either side of a nut 13 secured to a ball screw 14, itself secured to a reducer worm gear 15, coupled to a DC motor 17, the assembly being mounted on a support 16.
  • the motor is connected to an incremental sensor 18 and is controlled by a programmable electronic device such as for example a digital control or a computer.
  • the inclined shims 10, 10 ′ When the drive system described above acts in traction on the bars 11, 11 ′, so as to move them to the left in FIG. 3, the inclined shims 10, 10 ′ also move to the left and impose a lateral movement of the shims 9, 9 ′ in the direction of the folding plane 23, bringing the two half-dies closer together and consequently reducing the width 7 of the folding V.
  • the inclined shims 10, 10 ′ move in the opposite direction and allow the two half-dies to move away from each other under the action of a means spacing, such as for example a curved spring steel blade 19 as shown in Figure 1, the longitudinal ends of said blade being fixed to each of the two half-dies, towards the bottom of the folding V. Said blade, by its spring action, exerts permanent pressure against the respective walls 24, 24 ′ of the half-dies 1, 1 ′, tending to open the folding V.
  • the blade 19 also has a sealing function intended to close the bottom of the folding V.
  • the spring steel blade 19 can be replaced by a device for driving the fixed blocks 9 by the mobile blocks 10 (respectively fixed blocks 9 ′ by the mobile blocks 10 ′), such as for example a arrangement of the shims with grooves for the longitudinal sliding of one shim relative to the other, or by any other drive device.
  • each of the half-dies can be made integral with the table using a screw 25.
  • FIG. 2 represents the tool of FIG. 1, programmed for the folding of a sheet 2 ′ of thinner thickness than that of sheet 2 shown in FIG. 1.
  • the punch 3, 4 has flanges 5, 5 ′ intended to cooperate with the upper surfaces 6, 6 ′ of the two half-dies so as to allow the making crushed folds (Figure 5).
  • the tool shown in Figures 1 to 5 comprises symmetrical half-dies, their movement being actuated by a device also symmetrical, driven by a single motor.
  • a device also symmetrical, driven by a single motor.
  • it can also be produced with two motors acting respectively on the movement of each of the two half-dies, or with a single motor acting only on the movement of only one of the half-dies, the other being fixed.
  • the device for actuating the movement of the half-dies described above could also be replaced by an external hydraulic device.
  • the tool can be actuated by a device comprising a plurality of pairs of inclined shims arranged in the center of the die, between the two half-dies, intended to actuate the opening of the die, the closing of the matrix being actuated by a lateral compression device of the two semi-dies acting hydraulically or mechanically.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Press Drives And Press Lines (AREA)
  • Forging (AREA)

Claims (6)

  1. Werkzeug für Biegepressen zum Freibiegen, mit einer Matrize, die zwei Halbmatrizen (1, 1′) aufweist, die beidseits der Biegeebene (23) angeordnet sind, welche durch die Bewegung der Kante des Gesenks (3, 4) gebildet wird, wobei die beiden Halbmatrizen (1, 1′) derart befestigt sind, daß sie bezüglich des Tisches (12, 12′) des Untergestells (22) der Presse in eine Richtung senkrecht zur Biegeebene (23) gleiten können, während jede Halbmatrize (1, 1′) mit einer Anordnung zusammenwirkt, die eine Vielzahl von geneigten Anschlagpaaren (9, 10; 9′, 10′) enthält, die die Verschiebung der Halbmatrizen bewirken, wobei je ein Anschlag (9, 9′) eines Paars an einer der Halbmatrizen und der andere (10, 10′) an einem Zugteil (11, 11′) befestigt ist, welches mit einer Antriebsvorrichtung verbunden ist und die Gesamtanordnung derart ausgebildet ist, daß das Schließen des Biege-V und das Feststellen der Halbmatrizen von dem Zugteil bewirkt wird, während das Werkzeug ferner eine Spreizanordnung (19) aufweist, die die Öffnung des Biege-V durch Entfernen der beiden Halbmatrizen voneinander bewirkt.
  2. Werkzeug nach Anspruch 1, dadurch gekennzeichnet, daß die Spreizanordnung eine Stahl-Blattfeder (19) aufweist, die im Boden des Biege-V angeordnet ist und deren Längsseiten mit den beiden entsprechenden Halbmatrizen verbunden sind.
  3. Werkzeug nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß das Zugteil zwei Längsstäbe (11, 11′) aufweist, wobei je ein Ende der beiden Stäbe mit einer gemeinsamen Antriebsvorrichtung (13) verbunden ist.
  4. Werkzeug nach Anspruch 3, dadurch gekennzeichnet, daß die Antriebsvorrichtung eine Mutter (13) aufweist, zu deren beiden Seiten die Enden der beiden Längsstäbe befestigt sind, wobei die Mutter auf einer Schraube (14) angeordnet ist, die mit einem Getriebe (15) verbunden ist, welches mit einem Motor (17) in Verbindung steht.
  5. Werkzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß es ein Gesenk (3, 4) mit Stoßkanten (5, 5′) aufweist, die mit entsprechenden oberen Rändern (6, 6′) der beiden Halbmatrizen derart zusammenwirken, daß die Herstellung eines flachgedrückten Falzes ermöglicht wird.
  6. Werkzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Antriebsvorrichtung des Zugteils eine automatische Antriebsvorrichtung (11, 13, 14, 15, 17) ist, welche durch eine programmierbare elektronische Vorrichtung steuerbar ist.
EP90912757A 1989-09-11 1990-09-11 Werkzeug für biegepresse zum freibiegen Expired - Lifetime EP0444169B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH3297/89 1989-09-11
CH3297/89A CH680772A5 (de) 1989-09-11 1989-09-11
PCT/CH1990/000216 WO1991003332A1 (fr) 1989-09-11 1990-09-11 Outillage pour presse-plieuse pour pliage en l'air

Publications (2)

Publication Number Publication Date
EP0444169A1 EP0444169A1 (de) 1991-09-04
EP0444169B1 true EP0444169B1 (de) 1994-06-01

Family

ID=4252939

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90912757A Expired - Lifetime EP0444169B1 (de) 1989-09-11 1990-09-11 Werkzeug für biegepresse zum freibiegen

Country Status (7)

Country Link
US (1) US5305659A (de)
EP (1) EP0444169B1 (de)
JP (1) JPH04501537A (de)
AT (1) ATE106290T1 (de)
CH (1) CH680772A5 (de)
DE (1) DE69009446T2 (de)
WO (1) WO1991003332A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012175224A3 (de) * 2011-06-24 2013-04-11 Haco N.V. Biegegesenk
EP2674231A1 (de) * 2012-06-14 2013-12-18 Bystronic Laser AG Vorrichtung zum Biegen von Metallteilen

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE395127B (sv) * 1974-03-22 1977-08-01 Volvo Ab Anordning for montering av chassidetaljer pa en bilkaross
SE503594C2 (sv) * 1992-10-26 1996-07-15 Nya Ursvikens Mekaniska Verkst Anordning vid underverktyg
FR2741288B1 (fr) * 1995-11-21 1997-12-26 Mas Barral Atel Const Du Outillage reglable de pliage de toles
US6018979A (en) * 1998-07-08 2000-02-01 Acro Industries, Inc. Tool working height adjustment for press brake
SE0001294D0 (sv) * 2000-04-07 2000-04-07 Pullmax Ursviken Ab Underverktyg vid kantpress
ITAN20010039A1 (it) 2001-08-29 2003-03-01 Fabrizio Paoletti Matrice di piegatura regolabile, in particolare per presse di piegatura
US6450004B1 (en) * 2001-10-09 2002-09-17 Douglas E. Edmondson Press brake punch holder
US6874346B1 (en) * 2004-03-22 2005-04-05 Phillip C. Faymonville Multi-form die base with rotatable anvils having alternative forming surfaces
AT507911B1 (de) * 2009-03-04 2010-11-15 Trumpf Maschinen Austria Gmbh Verfahren zum freibiegen
ITMI20101953A1 (it) * 2010-10-22 2012-04-23 Rolleri S P A Matrice regolabile per presse piegatrici
USD807933S1 (en) 2015-08-14 2018-01-16 Henri Emil Louis Maurice Zermatten Tool for a press brake
ZA201605420B (en) 2015-08-14 2017-09-27 Henri Emil Louis Maurice Zermatten Tool for a press brake
CN106964681B (zh) * 2017-05-19 2019-04-23 国家电网公司 冲压角度可调节的手动角钢冲压装置
CN113523112B (zh) * 2021-07-15 2023-08-25 安徽联盟模具工业股份有限公司 智能调节开口无压痕折弯成形下模及开口调节方法
FI130847B1 (fi) * 2021-11-05 2024-04-23 Aliko Oy Ltd Särmäyspuristimen alatyökalu ja särmäyspuristin

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2315334A1 (fr) * 1975-06-24 1977-01-21 Haemmerle Ag Maschf Outil de pliage

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US784725A (en) * 1904-10-07 1905-03-14 John W Yates Cornice-making machine.
SU496072A1 (ru) * 1973-06-14 1975-12-25 Ленинградский Институт Точной Механики И Оптики Матрица универсального штампа дл гибки
JPS5029830A (de) * 1973-07-19 1975-03-25
FR2411043A1 (fr) * 1977-12-09 1979-07-06 Leleu Sa Marcel Outil de pliage pour presse
DE2952108C2 (de) * 1979-12-22 1983-11-24 Hämmerle AG, Zofingen Anordnung zur Höhenverstellung des Matrizenbodens von Biegewerkzeugen zum Biegen von Blechen
US4367644A (en) * 1980-10-06 1983-01-11 Pennsylvania Crusher Corporation Adjustable die and key assembly
CH655874A5 (de) * 1982-06-07 1986-05-30 Haemmerle Ag Maschf Werkzeugeinrichtung an einer abkantpresse.
DE3235775A1 (de) * 1982-09-28 1984-03-29 Dorstener Maschinenfabrik Ag, 4270 Dorsten Unterwerkzeug fuer eine abkantpresse
DE3245755A1 (de) * 1982-12-10 1984-06-14 Dorstener Maschinenfabrik Ag, 4270 Dorsten Verfahren zum korrigieren der biegelinie des biegewerkzeuges einer biegepresse, insbesondere abkantpresse
US4926676A (en) * 1987-09-04 1990-05-22 Lane & Roderick, Inc. Forming process for producing sharp corners in sheet metal
NL8800462A (nl) * 1988-02-24 1989-09-18 Liet Cornelis Hendricus Inrichting voor het bomberen van een werktuig van een buiginrichting.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2315334A1 (fr) * 1975-06-24 1977-01-21 Haemmerle Ag Maschf Outil de pliage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012175224A3 (de) * 2011-06-24 2013-04-11 Haco N.V. Biegegesenk
EP2674231A1 (de) * 2012-06-14 2013-12-18 Bystronic Laser AG Vorrichtung zum Biegen von Metallteilen

Also Published As

Publication number Publication date
JPH04501537A (ja) 1992-03-19
WO1991003332A1 (fr) 1991-03-21
DE69009446D1 (de) 1994-07-07
ATE106290T1 (de) 1994-06-15
DE69009446T2 (de) 1995-01-05
US5305659A (en) 1994-04-26
CH680772A5 (de) 1992-11-13
EP0444169A1 (de) 1991-09-04

Similar Documents

Publication Publication Date Title
EP0444169B1 (de) Werkzeug für biegepresse zum freibiegen
FR2596319A1 (fr) Appareil de bombage pour plieuse
FR2653365A1 (fr) Cisaille hydraulique pour ferrailles.
FR2475944A1 (fr) Appareil pour le decoupage, le pliage par rotation et le pliage par pression de toles et produits similaires
EP0027212A1 (de) Automatische Regelvorrichtung einer Verstell- und Verschlussvorrichtung einer Giessform
EP0680906B1 (de) Greiferstange und Befestigungsvorrichtung für ein Kettensystem in einer Maschine zur Behandlung von plattenförmigen Elementen
WO1997018907A1 (fr) Outillage reglable de pliage de toles
FR2772652A1 (fr) Procede et dispositif de formage de fils metalliques
FR2611149A1 (fr) Machine de formage, notamment une presse a forger avec reglage de la course
FR2490527A1 (fr) Dispositif de serrage de pieces pour machine-outil
EP0904614B1 (de) Krimpwerkzeug für serienfertigung von metallische kabelschuhe und werkzeugkassette
FR2630945A1 (fr) Cisaille a dechets metalliques
FR2847836A1 (fr) Dispositif de presse multifonction
FR2646623A1 (en) Press tool for deep-drawing slightly shaped workpieces
FR2729879A1 (fr) Procede et appareil pour le soudage par points en vue de l'assemblage d'un caisson de poutre d'une grue
FR2575107A1 (fr) Presse a outils a commande hydraulique en particulier pour la coupe des metaux
FR2671758A1 (fr) Dispositif de montage et de reglage en position des outils d'une machine-outil, en particulier pour presse verticale.
FR2529113A1 (fr) Dispositif pour le refoulement bilateral de tiges
FR2480661A1 (fr) Dispositif d'assemblage du mecanisme d'alignement et de la glissiere du chariot porte-outils d'une machine de transfert
FR2887792A1 (fr) Tete de sertissage
CA1216503A (fr) Machine a plier et cisailler des feuillets metalliques
FR2640910A1 (de)
WO2001074511A1 (fr) Centre de poinçonnage, destine notamment au poinçonnage de toles
FR2873939A1 (fr) Dispositif de pliage d'une tole le long d'une generatrice
FR2513561A1 (fr) Dispositif pour fendre les buches

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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19910920

17Q First examination report despatched

Effective date: 19920807

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

Owner name: BEYELER RASKIN S.A.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB IT LI NL SE

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

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19940601

REF Corresponds to:

Ref document number: 106290

Country of ref document: AT

Date of ref document: 19940615

Kind code of ref document: T

REF Corresponds to:

Ref document number: 69009446

Country of ref document: DE

Date of ref document: 19940707

ITF It: translation for a ep patent filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940727

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

Ref country code: GB

Payment date: 19940905

Year of fee payment: 5

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

Ref country code: SE

Payment date: 19940906

Year of fee payment: 5

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

Ref country code: BE

Payment date: 19940907

Year of fee payment: 5

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

Ref country code: AT

Payment date: 19940927

Year of fee payment: 5

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

Ref country code: NL

Payment date: 19940930

Year of fee payment: 5

Ref country code: FR

Payment date: 19940930

Year of fee payment: 5

EAL Se: european patent in force in sweden

Ref document number: 90912757.3

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

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19950911

Ref country code: AT

Effective date: 19950911

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

Ref country code: SE

Effective date: 19950912

ITTA It: last paid annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19950930

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

Ref country code: DE

Payment date: 19951113

Year of fee payment: 6

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

Ref country code: CH

Payment date: 19951218

Year of fee payment: 6

BERE Be: lapsed

Owner name: S.A. BEYELER RASKIN

Effective date: 19950930

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

Ref country code: NL

Effective date: 19960401

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

Effective date: 19950911

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

Ref country code: FR

Effective date: 19960531

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19960401

EUG Se: european patent has lapsed

Ref document number: 90912757.3

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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

Ref country code: LI

Effective date: 19960930

Ref country code: CH

Effective date: 19960930

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: DE

Effective date: 19970603

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;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050911