EP1338539B1 - Plieuse dans une machine à imprimer traitant des bandes avec un dispositif de surveillance d'une bande transporteuse - Google Patents

Plieuse dans une machine à imprimer traitant des bandes avec un dispositif de surveillance d'une bande transporteuse Download PDF

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Publication number
EP1338539B1
EP1338539B1 EP03002608A EP03002608A EP1338539B1 EP 1338539 B1 EP1338539 B1 EP 1338539B1 EP 03002608 A EP03002608 A EP 03002608A EP 03002608 A EP03002608 A EP 03002608A EP 1338539 B1 EP1338539 B1 EP 1338539B1
Authority
EP
European Patent Office
Prior art keywords
conveyor belt
folding apparatus
radiation
monitoring device
conveyor
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
EP03002608A
Other languages
German (de)
English (en)
Other versions
EP1338539A2 (fr
EP1338539A3 (fr
Inventor
Claude Duhamel
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.)
Goss International Montataire SA
Original Assignee
Goss International Montataire 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 Goss International Montataire SA filed Critical Goss International Montataire SA
Publication of EP1338539A2 publication Critical patent/EP1338539A2/fr
Publication of EP1338539A3 publication Critical patent/EP1338539A3/fr
Application granted granted Critical
Publication of EP1338539B1 publication Critical patent/EP1338539B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H43/00—Use of control, checking, or safety devices, e.g. automatic devices comprising an element for sensing a variable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/06—Advancing webs by friction band
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H26/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard

Definitions

  • the invention relates to a folding apparatus with at least one conveyor belt, which serves for conveying signatures at least on a partial section of a path of the signatures by the folding apparatus.
  • Typical folders have a variety of processing devices for creating folds, perforations, grooves, cuts and the like.
  • folders have a number of ways along which the processing devices are located and the signatures are transported. Often transport facilities are designed as conveyor belts. Depending on the final product to be produced or the type of fold can be switched between the different ways. To simplify the speech even a separate sheet or a separate copy is already called a signature.
  • Folders entail, due to the complex sequence of operations performed on the signature, a multiplicity of error sources for damage to the signatures or for production loss, in particular also when setting up the folder in a new configuration for a final print product to be created fold type. Therefore, in typical prior art folders, it is envisioned to provide monitors for transporting signatures along the various paths to detect paper jams and paper misfeeds.
  • a paper path monitoring device is provided in a folder, by which misdirected signatures are detected and a shutdown of the folder drive can be triggered.
  • sensors which are evaluated on the basis of the signature progression.
  • the sensors are preferably sensor pairs, ie transmitters and receivers, between which the path of the specimens extends.
  • the object of the present invention is to provide a folder which has less downtime due to unexpected breakage of conveyor belts.
  • a folding device with at least one conveyor belt which serves to convey signatures at least on a partial section of a path of the signatures by the folding apparatus, at least one monitoring device to which the conveyor belt is assigned, wherein the monitoring device comprises a detector for radiation scattered by at least part of the conveyor belt during at least one period of time.
  • the radiation may be electromagnetic radiation, in particular visible or infrared light, preferably laser light, or ultrasound.
  • a folder according to the invention consequently has less downtime due to unexpected breakage of a conveyor belt than a folder without a monitoring device according to the invention.
  • the monitoring device thus has at least two different functions: on the one hand, the presence, on the other hand, the quality state of the conveyor belt can be determined.
  • the quality state of the conveyor belt can be determined.
  • the function of fracture detection and information about the wear of the conveyor belt can be obtained, so that it can be decided when an exchange of the conveyor belt appears necessary. A timely replacement of the conveyor belt reduces the risk of unexpected breakage.
  • a method for monitoring at least one conveyor belt in a folder with the following steps. Radiation scattered from at least part of the conveyor belt at least during a period of time is detected. A signal is generated which is representative of the state of the conveyor belt, in particular for the presence state and / or the Quality condition. The signal is assigned to a condition class. At least two presence assessment classes are required to discriminate presence and absence. The quality status classes are subclasses of the presence class of existence. There can be a number of quality status classes. Typically, two or three classes appear to be useful for assessing quality in order to distinguish a sufficient one from a non-sufficient quality, possibly with a third class of almost sufficient quality. The state class assignment can be carried out in an evaluation unit or in a machine control according to predetermined criteria via the conveyor belt parameters.
  • radiation is emitted in grazing incidence on the conveyor belt. It can also be detected in grazing incidence or skewed past the direction of the conveyor belt on the conveyor belt. As a result, small changes in shape of the conveyor belt, such as its defibration or a peeling connection of two ends can be determined.
  • the monitoring device of the folder comprises a radiation emitter and a radiation detector.
  • the conveyor belt is exposed to a radiation flux and the scattered radiation is detected.
  • the change or deviation of the scattered radiation is considered to be a measure of the deviation of the condition of the conveyor belt from a reference state, for example, the state of a good grade.
  • the change can be an increase or a decrease.
  • the emitted radiation may in particular be directional.
  • the conveyor belt may have at least one portion with increased reflectivity for the scattered radiation.
  • the reflectivity changes with increasing operating time of the conveyor belt in the folder. In particular, either is advantageous a monotonous increase or a monotonous decrease.
  • the monitor may be assigned the number of conveyor belts and the monitor may detect the radiation scattered by a conveyor belt at least during a period of time.
  • the monitoring device can be moved by means of an actuator in the folder.
  • the monitoring device of the folding apparatus is linked to the machine control.
  • the information about the quality conditions of the conveyor belt or conveyors in the folder can be used for decisions of the machine control.
  • a program-based machine control executes control options depending on the detected presence and / or quality state of the conveyor belt (s). For example, an automatic shutdown of the machine can be made with a lack of conveyor belt quality to avoid paper jams or paper misfeeds.
  • the operator may be alerted to a poor presence or quality condition by signal through a man-machine interface including, for example, a monitor or speaker.
  • the signal can be a visible and / or audible signal (light signal and / or signal tone).
  • the folding apparatus according to the invention can be used on web-processing printing press of all types of printing methods, in particular in direct or indirect planographic printing, offset printing or the like.
  • a folding apparatus according to the invention may be arranged downstream of a web-processing printing press.
  • Typical substrates include paper, paperboard, organic polymeric materials or the like.
  • FIG. 1 shows a sketch to explain two frequently occurring degradations of conveyor belts in folders and the monitoring according to the invention of these sources of risk of breakage.
  • Common conveyor belts for folders whether flat or round conveyor belts, have a fabric-like or layered structure. Typically, their paths are straight in sections, their directions are changed by means of pulleys, and along their way they are under tension. Often, further elements are provided which are intended to fix the position of the conveyor belts, ie their way. Both pulleys and elements for Wegfix réelle can Exert frictional forces on the conveyor belts.
  • Conveyor belts often consist of at least one originally open band whose ends are brought together and fastened, so that a closed band is formed. The location of the connection is potentially weaker than other band sections, so that it can come to a replacement, because, for example, operate during operation Walk forces due to movement direction changes of the tensioned band.
  • a conveyor belt may also have a plurality of such compounds.
  • FIG 1 is a sketch of a section of a conveyor belt 10 is shown.
  • the conveyor belt 10 is a closed belt along a path not specified here.
  • There are two monitoring devices 12 are provided, the observation directions 13 perpendicular and skewed to the conveyor belt 10, which moves in the direction 14, extend.
  • the exact advantageous distance to the conveyor belt depends on its physical parameters, such as thickness, elasticity and structure (fabric or layer) and the like. It has been found that a distance of a few millimeters to a few centimeters (2 mm to 2 cm) is advantageous.
  • a peeling connection 16 is shown on the shown portion of the conveyor belt 10.
  • the conveyor belt 10 has a point with defibration 18.
  • the partially protruding ends of the peeling connection 16 and the protruding fibers of the defibration protrude into the viewing direction 13 of the monitoring device 12 as they pass, as the conveyor belt 10 moves in direction 14.
  • these degradations of the conveyor belt can be detected by means of the monitoring device 12 by detecting radiation scattered by the degradations, more precisely by the (degraded) parts of the conveyor belt 10 projecting partially into the observation direction 13.
  • FIG. 2 is a schematic illustration for explaining the monitoring of scattered radiation according to the invention of at least part of a conveyor belt, by way of example the conveyor belt having portions of increased reflectivity.
  • FIG. 2 shows a further geometry or arrangement for monitoring the conveyor belt 10 with a monitoring device 12.
  • the conveyor belt 10 moves in the direction 14 past a detector 20.
  • Scattered radiation 22, preferably visible or infrared light, is measured in the detector 20.
  • the radiation 22 is scattered by a part 24 of the conveyor belt 10.
  • the detection can take place in at least two ways during a period of time: On the one hand, the detection can be performed clocked whenever a certain portion of the conveyor belt 10 passes the detector 20, on the other hand, the radiation 22 scattered by a part 24 of the conveyor belt 10 is only measured when this part 24 passes the detector 20.
  • the conveyor belt 10 shown in Figure 2 for example, two sections 26 with increased reflectivity. The increased reflectance refers to the wavelengths of radiation measured by the monitor 12.
  • increased reflectance means that for at least a portion of the wavelengths detected, the conveyor belt 10 has a high reflectivity, typically greater than 50%, preferably greater than 80%, while for adjacent wavelengths the reflectance is less strong, typically less than 50%, preferably less than 20%.
  • An increased reflectivity can be achieved by a colored strip or a colored fiber on or in the structure of the conveyor belt.
  • This change may be an increase or decrease: an increase may occur, for example, when a colored inner fiber emerges due to fiberizing out of outer fibers. A decrease may occur, for example, when a colored outer layer is removed due to abrasion.
  • the monitoring device 12 has a connection 28 to an evaluation unit (not shown here in FIG. 2).
  • FIG 3 is a view of an advantageous embodiment of a conveyor belt monitor in a folder.
  • the folder 30 faces between the side wall 32 of the operator side and the sides 34 of the drive side a number of conveyor belts 10 on (conveyor belt bank).
  • the conveyor belts 10 extend over a roller 36, which is rotatably mounted on the side walls 32, 34.
  • the conveyor belts 10, which are supported by the roller 36, pass through a chamber 38, which may be under pressure.
  • the chamber 38 may inter alia serve to avoid contamination of the monitoring devices 12.
  • Two monitoring devices 12 are accommodated on a carriage 40, which is movable by means of a drive not shown in detail here, for example a servomotor with spindle drive or a linear motor, on a linear guide 42 substantially perpendicular to the running direction of the conveyor belts 10.
  • the monitoring devices 12 are movable in the folding apparatus 30 by means of an actuator, comprising a slide 40 and a linear guide 42.
  • the linear guides are fixed by means of recesses 44 on the side wall of the operator side 32 and the side wall of the drive side 34.
  • a connection to the monitoring devices 12 runs via a cable train 46, which is supported by a traverse 48.
  • the monitoring devices 12 each comprise a radiation emitter, here a light emitter, for example a laser, and a radiation detector, here for example a photocell.
  • the electromagnetic radiation 50 emanating from the light emitters of the monitoring devices 12 is at least partially scattered on at least part of the conveyor belts.
  • These monitoring devices 12 can be used to determine the presence state of the conveyor belts 10.
  • the use of laser radiation is particularly advantageous and therefore preferred, in particular because of its directionality, its spectral power density and low total power required.
  • Radiation emitter and radiation detector can be combined in the form of a triangulation sensor.
  • FIG. 3 also shows two monitoring devices 12, which are supported by a receiving element 52.
  • These monitoring devices 12 have radiation emitters and radiation detectors. Starting from the light emitters of the monitoring device 12, electromagnetic radiation 50 runs askew to Direction of the conveyor belts 10 to the conveyor belts 10 over. The electromagnetic radiation 50 propagates in this embodiment substantially perpendicular to the conveyor belts 10 and has a substantially constant distance from the conveyor belts 10. By means of these monitoring devices 12, detaching compounds or defibrings (see FIG. 1) can be detected particularly well. These monitoring devices 12 can be used in particular for determining the quality state of the conveyor belts 10. The use of laser radiation is also particularly advantageous for these monitoring devices 12 and is therefore preferred.
  • the radiation emitter and the radiation detector of these monitoring devices 12 can be combined in the form of a triangulation sensor.
  • FIG. 4 is a side view of an advantageous embodiment of a monitoring device 12 for conveyor belts 10 in a folding apparatus 30. Shown is a portion of a conveyor belt 10 which passes over rollers 36 and passes through a chamber 38. On a carriage 40, which is movable relative to the conveyor belt 10 substantially perpendicular to its direction of movement 14 by means of a linear guide 42, there is a monitoring device 12 which can emit and detect electromagnetic radiation 50.
  • the monitoring device 12 has a connection 28 via cable lug 46 to an evaluation unit not shown here in detail. Furthermore, the monitoring devices 12 are shown, whose observation direction 13 is skewed and substantially perpendicular to the conveyor belt 10 (in the illustration of Figure 4 perpendicular to the paper plane).
  • FIG. 5 shows a schematic representation of an embodiment of a folding apparatus according to the invention with a number of conveyor belts, which monitoring devices are assigned.
  • the conveyor belts 10 carry signatures 64 through the folder 30 at least over a portion of a path.
  • a folder 30 having only an exemplary configuration of various paths of the signatures 64 and various processing devices is downstream of a web-processing press 54.
  • the printing substrate 56 initially passes a Cross cutter 58, which comprises a cutting cylinder 60 and a grooved cylinder 62 and in which signatures 64 are separated from the printing substrate 56. Below the cutting cylinder 60 and the grooved cylinder 62 on rollers 36 circulating conveyor belts 10 are shown, between which the first path 66 and the second path 68 passes through the folding apparatus 30.
  • the conveyor belts 10 are monitoring devices 12, as described in more detail above assigned.
  • the first path 66 and the second path 68, along which the signatures 64 travel through the folder 30, extend around a folding blade cylinder 72 to a jaw cylinder 74.
  • the paths then separate.
  • the first path 66 runs along a transport cylinder 76 between two conveyor belts 10, which revolve around rollers 36.
  • these conveyor belts monitoring devices 12 are assigned.
  • the path 66 extends via further transport cylinder 36 and a Schaufelradauslauge to a conveyor belt 10, which is associated with a monitoring device 12.
  • the second path 68 leads via a gripper cylinder to a conveyor belt 10 with associated monitoring device 12. From there, the path 68 leads under a rotary blade folding unit 82, which presses signatures 64 through the gap formed by two folding rollers 84.
  • the signatures 64 reach a further conveyor belt 10 with associated monitoring device 12.
  • the monitoring devices 12 may be designed according to the embodiments shown in FIGS. 3 and 4.
  • the monitoring devices 12 have connections 28 to an evaluation unit 70 with a computing device.
  • the signals generated in the monitoring devices 12, which are representative of the state of the respective associated conveyor belts 10, can be correlated in the evaluation unit 70 to predetermined values, for example in the form of a nominal-actual comparison to reference data stored in a memory, and thus into condition classes (presence state and / or quality state).
  • the evaluation unit 70 is connected to the machine control 86, so that, depending on the result of the state class assignment, certain measures for the control of the machine, for example a shutdown or a signaling, can be executed.
  • the machine controller 86 connects to a man-machine interface 88, which typically includes a display unit (eg, a monitor), an input unit (eg, a keyboard, a touch screen, a button, or the like), an optical or acoustic signal unit and the like.
  • a man-machine interface 88 typically includes a display unit (eg, a monitor), an input unit (eg, a keyboard, a touch screen, a button, or the like), an optical or acoustic signal unit and the like.
  • Information about the condition of the conveyor belts 10 in the folder 30 can be communicated to the machine operator by means of the man-machine interface 88 so that the machine operator can take appropriate measures, for example a change of one or more of the conveyor belts 10.

Landscapes

  • Controlling Sheets Or Webs (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)

Claims (11)

  1. Plieuse (30) comprenant au moins une bande de transport (10), laquelle sert à acheminer des signatures (64) au moins sur une section partielle d'un trajet (66, 68) des signatures (64) à travers la plieuse (30),
    caractérisée en ce que
    la plieuse (30) comprend au moins un dispositif de surveillance (12), auquel est associée la bande de transport (10), le dispositif de surveillance (12) comportant un détecteur (20) pour le rayonnement (22) diffusé par au moins une partie (24) de la bande de transport (10) pendant au moins un intervalle de temps.
  2. Plieuse (30) selon la revendication 1,
    caractérisée en ce que
    le rayonnement (22) est un rayonnement électromécanique (50) ou un ultrason.
  3. Plieuse (30) selon la revendication 1 ou 2,
    caractérisée en ce que
    le dispositif de surveillance (12) comporte un émetteur de rayonnement et un détecteur de rayonnement (20).
  4. Plieuse (30) selon l'une quelconque des revendications précédentes,
    caractérisée en ce que
    la bande de transport (10) comprend au moins une section (26) dotée d'un pouvoir réflecteur accrû pour le rayonnement diffusé (22), le pouvoir réflecteur variant à mesure qu'augmente la durée de fonctionnement de la bande de transport dans la plieuse, augmentant ou diminuant en particulier de façon monotone.
  5. Plieuse (30) dotée d'un certain nombre de bandes de transport (10) selon l'une quelconque des revendications précédentes,
    caractérisée en ce que
    le nombre de bandes de transport (10) est associé au dispositif de surveillance (12) et le dispositif de surveillance (12) détecte le rayonnement diffusé (22) par une bande de transport (10) au moins pendant un intervalle de temps.
  6. Plieuse (30) selon la revendication 5,
    caractérisée en ce que
    le dispositif de surveillance (12) est mobile dans la plieuse (30) au moyen d'un actionneur (40, 42).
  7. Plieuse (30) selon l'une quelconque des revendications précédentes,
    caractérisée en ce que
    le dispositif de surveillance (12) est relié à la commande de machine (86).
  8. Plieuse (30) selon l'une quelconque des revendications précédentes,
    caractérisée en ce que
    le dispositif de surveillance (12) est conçu à cet effet pour constater un état de présence ou un état de qualité de la bande de transport.
  9. Presse à imprimer imprimant sur une bande à imprimer (54), caractérisée par au moins une plieuse (30) disposée en aval selon l'une quelconque des revendications précédentes.
  10. Procédé de surveillance d'au moins une bande de transport (10) dans une plieuse (30),
    caractérisé par
    - la détection d'un rayonnement (22), lequel est diffusé par au moins une partie (24) de la bande de transport (10) au moins pendant un intervalle de temps ;
    - la génération d'un signal, lequel est représentatif de l'état de présence ou de qualité de la bande de transport (10) ; et
    - l'attribution du signal dans une classe d'états.
  11. Procédé de surveillance d'au moins une bande de transport (10) dans une plieuse (30) selon la revendication 10,
    caractérisé par
    l'émission du rayonnement de façon inclinée par rapport à la direction de la bande de transport (10) en passant devant la bande de transport (10).
EP03002608A 2002-02-23 2003-02-10 Plieuse dans une machine à imprimer traitant des bandes avec un dispositif de surveillance d'une bande transporteuse Expired - Lifetime EP1338539B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10207869A DE10207869A1 (de) 2002-02-23 2002-02-23 Falzapparat einer bahnverarbeitenden Druckmaschine mit Transportbandüberwachungsvorrichtung
DE10207869 2002-02-23

Publications (3)

Publication Number Publication Date
EP1338539A2 EP1338539A2 (fr) 2003-08-27
EP1338539A3 EP1338539A3 (fr) 2004-06-09
EP1338539B1 true EP1338539B1 (fr) 2006-05-31

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EP03002608A Expired - Lifetime EP1338539B1 (fr) 2002-02-23 2003-02-10 Plieuse dans une machine à imprimer traitant des bandes avec un dispositif de surveillance d'une bande transporteuse

Country Status (4)

Country Link
US (2) US6979815B2 (fr)
EP (1) EP1338539B1 (fr)
JP (1) JP2003267624A (fr)
DE (2) DE10207869A1 (fr)

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US7814804B2 (en) * 2007-03-30 2010-10-19 Brunswick Corporation Methods and apparatus to determine belt condition in exercise equipment
CA2684828C (fr) * 2008-11-17 2016-07-05 Veyance Technologies, Inc. Detecteur de dechirure de bande transporteuse
JP5998356B2 (ja) * 2013-02-18 2016-09-28 パナソニックＩｐマネジメント株式会社 基板搬送装置および搬送ベルトの保守点検方法
JP6596429B2 (ja) * 2014-09-04 2019-10-23 株式会社Ｆｕｊｉ 基板搬送装置および搬送ベルト検査方法
US9618394B2 (en) * 2015-04-21 2017-04-11 Razorback Technology Llc Monitoring the condition of drive belts in belt driven machines
JP7170568B2 (ja) * 2019-03-19 2022-11-14 株式会社東芝 紙葉類処理装置および紙葉類処理方法
DE102020104909A1 (de) * 2020-02-25 2021-08-26 Manroland Goss Web Systems Gmbh Bauteil mit Verschleißanzeige
US11421780B2 (en) 2020-03-20 2022-08-23 High Performance Harry's Inc. Reading internal temperature of continuously variable transmissions

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US4464654A (en) * 1981-03-23 1984-08-07 The B. F. Goodrich Company Time independent logic system for rip detectors
DE3222629A1 (de) * 1982-06-16 1983-12-22 Betriebsforschungsinstitut VDEh - Institut für angewandte Forschung GmbH, 4000 Düsseldorf Vorrichtung zur einstellung der lage einer kante
JPH0676129B2 (ja) * 1990-04-17 1994-09-28 バンドー化学株式会社 コンベヤベルトの縦裂き検出方法
DE4444264C2 (de) * 1994-12-13 2002-05-08 Continental Ag Verfahren und Anordnung zur Überwachung eines Fördergurtes
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US6440049B1 (en) * 1998-02-02 2002-08-27 Heidelberger Druckmaschinen Ag Folder with early warning jam detection system and related method
ATE257120T1 (de) 1999-07-15 2004-01-15 Heidelberger Druckmasch Ag Vorrichtung zur überwachung des transportes flächiger exemplare
US6521905B1 (en) * 1999-09-22 2003-02-18 Nexpress Solutions Llc Method and device for detecting the position of a transparent moving conveyor belt
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US6988610B2 (en) * 2002-01-14 2006-01-24 Carnegie Mellon University Conveyor belt inspection system and method

Also Published As

Publication number Publication date
US20030160156A1 (en) 2003-08-28
JP2003267624A (ja) 2003-09-25
EP1338539A2 (fr) 2003-08-27
DE10207869A1 (de) 2003-09-04
US6979815B2 (en) 2005-12-27
US20060033018A1 (en) 2006-02-16
DE50303529D1 (de) 2006-07-06
EP1338539A3 (fr) 2004-06-09

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