EP1446344B1 - Unite de transporteur con ue pour des objets plats - Google Patents

Unite de transporteur con ue pour des objets plats Download PDF

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Publication number
EP1446344B1
EP1446344B1 EP02776869A EP02776869A EP1446344B1 EP 1446344 B1 EP1446344 B1 EP 1446344B1 EP 02776869 A EP02776869 A EP 02776869A EP 02776869 A EP02776869 A EP 02776869A EP 1446344 B1 EP1446344 B1 EP 1446344B1
Authority
EP
European Patent Office
Prior art keywords
endless belt
speed
cylinder
conveyor unit
unit according
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
EP02776869A
Other languages
German (de)
English (en)
Other versions
EP1446344B8 (fr
EP1446344A1 (fr
Inventor
Berthold Peter Held
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Priority to EP04101665A priority Critical patent/EP1479630A1/fr
Publication of EP1446344A1 publication Critical patent/EP1446344A1/fr
Publication of EP1446344B1 publication Critical patent/EP1446344B1/fr
Application granted granted Critical
Publication of EP1446344B8 publication Critical patent/EP1446344B8/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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/68—Reducing the speed of articles as they advance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/12—Delivering or advancing articles from machines; Advancing articles to or into piles by means of the nip between two, or between two sets of, moving tapes or bands or rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/0006—Article or web delivery apparatus incorporating cutting or line-perforating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/04—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators
    • B65H35/08—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators from or with revolving, e.g. cylinder, cutters or perforators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/28—Folding in combination with cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/44—Moving, forwarding, guiding material
    • B65H2301/443—Moving, forwarding, guiding material by acting on surface of handled material
    • B65H2301/4431—Moving, forwarding, guiding material by acting on surface of handled material by means with operating surfaces contacting opposite faces of material
    • B65H2301/44314—Moving, forwarding, guiding material by acting on surface of handled material by means with operating surfaces contacting opposite faces of material between belts and cylinder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/44—Moving, forwarding, guiding material
    • B65H2301/443—Moving, forwarding, guiding material by acting on surface of handled material
    • B65H2301/4431—Moving, forwarding, guiding material by acting on surface of handled material by means with operating surfaces contacting opposite faces of material
    • B65H2301/44316—Moving, forwarding, guiding material by acting on surface of handled material by means with operating surfaces contacting opposite faces of material between belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/20—Belts
    • B65H2404/25—Driving or guiding arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • 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
    • B65H2701/19—Specific article or web
    • B65H2701/1932—Signatures, folded printed matter, newspapers or parts thereof and books

Definitions

  • the invention relates to a conveyor unit for flat objects according to the preamble of claim 1.
  • Such conveyor units are z. B. used in folders to promote signatures that have been previously cut off from a web of a substrate.
  • the signatures consist of a variable number of sheets, which are unconnected to each other. It is therefore of great importance in promoting the signatures that the two endless belts and the cylinder move at exactly matched speeds to avoid that shingles clamped between them act on shearing forces resulting in deformation and fanning of the signatures Signatures during transport.
  • the first endless belt which partially envelops the lateral surface of the cylinder, is driven over the cylinder by friction.
  • the web speed of the first belt corresponds to the peripheral speed of the cylinder when no articles are conveyed between them. If conveyed objects are in the wrap area between the cylinder and the first belt, this will affect the speed of the first belt like an increase in the diameter of the cylinder.
  • the speed of the first band thus increases with the thickness of the objects to be conveyed.
  • the movement of the second endless belt is coupled via a transmission gear with a fixed predetermined transmission ratio to the rotation of the cylinder.
  • the speed of the second band is therefore constant. This dictates that the two bands only at a certain thickness of the objects to be conveyed run exactly the same, so that the objects are not exposed to shear forces.
  • US 3,363,520 A discloses a collection cylinder for multiple-band sheets with a belt driven by the collection cylinder.
  • the invention has for its object to provide a conveyor unit for flat objects.
  • the achievable with the present invention consist in particular that even with different thickness of the objects to be conveyed always synchronization between both sides of the conveyor line can be made on the entire length, so that the items can be promoted gently and shear-free.
  • the conveying path of the conveyor unit is subdivided into two successive sections, wherein in one section a part of the circumference of the cylinder and the first conveyor belt are opposed and in a second part a second and a third conveyor belt.
  • the second and the third endless belt are coupled via a transmission gear to the rotational movement of the cylinder, wherein the transmission ratio of the transmission gear is set so that the speeds of the two endless belts exactly match the peripheral speed of the cylinder.
  • a drive device for the second and the third endless belt can be controlled independently of the rotational speed of the cylinder. With her can be adjusted to the respective thickness of the conveyed product and the resulting speed of the first endless belt speed of the second and third band, here slight differences between an optimal under the aspect of the deformation-free conveying of the products speed of the second and third band and their actual speed can be tolerated much earlier than in the above-described conveyor unit with two endless belts.
  • such a deviation merely leads to a slight tensile stress or a temporary compression of the products in the course of their transfer from one section of the conveying unit to the other, depending on which of the two is faster. Shear, on the other hand, can not occur because it requires bands of different speeds facing each other.
  • the optimum speed must be equal to the speed of the first endless belt or the peripheral speed of the cylinder, or it must be between these two values.
  • the average speed of the first band and the cylinder can be assumed as the optimum speed. This corresponds to a position of the neutral fiber of the product, ie a fictive line of the product Product that is neither stretched nor compressed when conveying on the cylinder, exactly in the middle of the product.
  • This drive device is expediently associated with a control device which acts to equalize the speeds of the second and third endless belt to the optimum speed.
  • This control device preferably controls the speed of the second belt with a variable proportionality factor proportional to the rotational speed of the cylinder.
  • the controller may be coupled to a sensor for measuring the speed of the first band. Its speed varies linearly with the thickness of the conveyed objects; By simply adjusting the speed of all belts, the freedom of stretching or compression loads can be achieved.
  • Another possibility is to couple a sensor for detecting a thickness of the articles to the control device.
  • a sensor for detecting a thickness of the articles to the control device.
  • Such a sensor can in particular be arranged before the entrance of the conveyor unit in order to be able to adapt the conveyor speeds of the conveyor unit to a changed thickness, even before the object on which the thickness measurement was carried out reaches the conveyor unit.
  • the single drawing shows a schematic section through a conveyor unit.
  • the conveyor unit is arranged following a cutting unit formed from a knife cylinder 02 and an opposite grooved cylinder 03, with a in one overlying, not shown in the drawing superstructure with the aid of several rotating slitter cut into strands and superimposed web of material 01, z. B. a paper web 01, is cut into individual signatures.
  • the signatures therefore consist of a different number of superimposed sheets of paper, which are not firmly held together and are therefore open on all four sides.
  • the distance along which the signatures are conveyed in the conveyor unit can be divided into two sections, a first section 08, in which the signatures between two endless belts 06; 05, here as the second or third endless belt 06; 05 referred compressed, and a second section 09, in which they between a first endless belt 04 and a cylinder 07, z. B. a collecting cylinder 07 a rotary printing machine to be transported.
  • the signatures are guided on a side facing the collecting cylinder 07 by a wedge-shaped tongue 17.
  • a lower deflecting roller 18 of the third endless belt 05 is pivotally mounted about an axis 19 while maintaining the tension of the third endless belt 05, thus allowing access to the tongue 17 to replace or maintain it.
  • the collecting cylinder 07 is driven by a motor, not shown in the drawing.
  • the first endless belt 04 which wraps around the collecting cylinder 07 in the second section 09 over an angular range of approximately 180 °, is driven by the collecting cylinder 07 by friction.
  • signatures When conveyed in the second section 09, they transmit the driving force from the collecting cylinder 07 to the first endless belt 04.
  • the speed difference is proportional to the thickness of the signatures.
  • the speed of the first endless belt 04 therefore adapts automatically with changing thickness of the signatures.
  • the second endless belt 06 and the third endless belt 05 are connected at the same speed via an intermediate 11 together by a drive device 12, for. B. a frequency-controlled motor 12 driven. Thus, it can also come during the transport of the signatures in the first section 08 to any shear.
  • the speed of the motor 12 is controlled by a control device 13, whose task is the web speeds of the two endless belts 05; 06 on a suitable, adapted to the transport speed of the signatures in the section 09 value and to avoid so that the leaves of the signatures are moved or compressed against each other in their transition from the first section 08 in the second section 09, and the signatures so unsightly or become unusable.
  • the web speeds of the three endless belts 04; 05; 06 is to equalize the speed of the second and third endless belt 06 and 05 to that of the first endless belt 04, so that a signature that is passed from the first section 08 in the second section 09 of the conveyor line, at least at its the third and first endless belt 05 or 04 facing side is exposed to any stretching or compression loads.
  • the speed of the first endless belt 04 depends on the speed of the collecting cylinder 07 and the thickness of the signatures to be conveyed, active control of the speed is required for the various endless belts.
  • the control device 13 is connected according to a first embodiment of the invention with two speed sensors for the web speed of the third and second endless belt 05 and 06 and acts on an approximation of these web speeds.
  • the speed sensors can z. B. rotary encoder, each at a guide roller 14 and 16 of the third and second endless belt 05; 06 are arranged and each time when the guide roller 14; 16 has traveled a predetermined angle of rotation, provide a pulse to the controller 13.
  • these rotation angle sensors are identical and are at deflection rollers 14; 16 mounted with the same radius.
  • the control device 13 an identical web speed of the endless belts 05; 06 ensure that it maintains a constant, preferably vanishing phase offset between the pulses supplied by the two sensors.
  • the speed of the second and third endless belts 06; 05 is then proportional to the speed of the collecting cylinder 07, wherein the proportionality factor is determined by the thickness of the promoted between the collecting cylinder 07 and the first endless belt 04 signatures.
  • Another way to control the speed of the second endless belt 06 is to connect the control device 13 on the one hand with a sensor for the speed of the first endless belt 04 or the rotational speed of the collecting cylinder 07 and on the other hand with a sensor for the thickness of the signatures to be transported wherein the controller 13 then calculates a speed to be maintained by the engine 12 from the measured speed corrected by a proportionality factor dependent on the measured thickness.
  • a sensor for the thickness of the signatures or a size proportional thereto can be arranged on the material web 01 at a largely arbitrary point in the conveyor unit itself or better still before the start of the conveyor unit.
  • the intermediate wheel 11, which is the two endless belts 05; 06 drives together, coupled via a (not shown) transmission with a fixed ratio to the rotation of the collecting cylinder 07.
  • the gear ratio is chosen so that the web speed of the two endless belts 05; 06 is equal to the peripheral speed of the collecting cylinder 07.
  • the third endless belt 05 runs slightly slower than the first endless belt 04, which is subsequently arranged in the conveying path.
  • acts in the first embodiment described above only an upsetting force on the signatures at the moment of transfer. This can not lead to slippage of individual sheets of signatures, so that when processing thick signatures of the technically complex first embodiment of preference over the simple and inexpensive second charges may.
  • any speed can be set, which is between the peripheral speed of the collecting cylinder 07 and the web speed of the first endless belt 04. If you choose z. B. as the web speed of the first section 08, the average of peripheral speed of the collecting cylinder 07 and web speed of the endless belt 04, acting on a collecting cylinder 07 surface facing the signature at the transfer to the second section 09 a slight compression, while the opposite, the endless belts 05 , 04 facing surface of the signature is stretched.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Structure Of Belt Conveyors (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
  • Belt Conveyors (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Claims (8)

  1. Unité de transport d'une plieuse pour transporter des objets plats avec au moins une première et une deuxième bandes en continu (04, 06) et un cylindre configuré en tant que cylindre collecteur (07), l'unité de transport étant disposée après un dispositif de coupage, une voie de transport pour des objets plats étant limitée d'une part au moins par la première bande en continu (04) et d'autre part par une partie de la circonférence du cylindre (07) et par la deuxième bande en continu (06), la première bande en continu (04) s'étendant le long de la partie de la circonférence du cylindre (07) et la voie de transport par rapport à la deuxième bande en continu (06) étant limitée par une troisième bande en continu (05), caractérisée en ce que la première bande en continu (04) est entraînée par le cylindre (07) par contact de friction, en ce qu'un dispositif d'entraînement (12) réglable indépendamment de la vitesse de rotation du cylindre (07) est aménagé pour la deuxième ou troisième bande en continu (06, 05), en ce que est disposé un dispositif de réglage (13), qui vise à adapter la vitesse de la deuxième et troisième bandes en continu (06, 05) à la vitesse de la première bande (04) ou à la vitesse circonférentielle du cylindre (07) ou à une valeur de vitesse intermédiaire, et en ce que le dispositif de réglage règle la vitesse de la deuxième et troisième bandes en continu (05, 06) avec un facteur de proportionnalité variable proportionnellement à la vitesse de rotation du cylindre (07).
  2. Unité de transport selon la revendication 1, caractérisée en ce que la troisième bande en continu (05) est couplée à la deuxième bande en continu (06) de façon à être mobile.
  3. Unité de transport selon la revendication 1, caractérisée en ce que la troisième bande en continu (05) peut être entraînée à une vitesse identique à celle de la deuxième bande en continu (06).
  4. Unité de transport selon la revendication 1, caractérisée en ce que le dispositif de réglage (13) est couplé à un capteur afin de mesurer la vitesse de la première bande en continu (04).
  5. Unité de transport selon la revendication 1, caractérisée en ce que le dispositif de réglage (13) est couplé à un capteur afin de détecter une épaisseur des objets transportés.
  6. Unité de transport selon la revendication 5, caractérisée en ce que le capteur est disposé dans la direction de transport en amont de la voie de transport.
  7. Unité de transport selon la revendication 1, caractérisée en ce que le dispositif d'entraînement (12) comprend un moteur en modulation de fréquence.
  8. Unité de transport selon la revendication 1, caractérisée en ce que la deuxième bande en continu (06) et la troisième bande en continu (05) sont entraînées conjointement à la même vitesse par une roue intermédiaire (11) du dispositif d'entraînement (12).
EP02776869A 2001-11-14 2002-11-06 Unite de transporteur con ue pour des objets plats Expired - Lifetime EP1446344B8 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04101665A EP1479630A1 (fr) 2001-11-14 2002-11-06 Unité de convoyage pour objets plats

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10160754 2001-11-14
DE10160754A DE10160754C2 (de) 2001-11-14 2001-11-14 Fördereinheit zum Fördern flacher Gegenstände
PCT/DE2002/004106 WO2003045826A1 (fr) 2001-11-14 2002-11-06 Unite de transporteur conçue pour des objets plats

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP04101665A Division EP1479630A1 (fr) 2001-11-14 2002-11-06 Unité de convoyage pour objets plats

Publications (3)

Publication Number Publication Date
EP1446344A1 EP1446344A1 (fr) 2004-08-18
EP1446344B1 true EP1446344B1 (fr) 2006-12-20
EP1446344B8 EP1446344B8 (fr) 2007-03-14

Family

ID=7708761

Family Applications (2)

Application Number Title Priority Date Filing Date
EP04101665A Withdrawn EP1479630A1 (fr) 2001-11-14 2002-11-06 Unité de convoyage pour objets plats
EP02776869A Expired - Lifetime EP1446344B8 (fr) 2001-11-14 2002-11-06 Unite de transporteur con ue pour des objets plats

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP04101665A Withdrawn EP1479630A1 (fr) 2001-11-14 2002-11-06 Unité de convoyage pour objets plats

Country Status (8)

Country Link
US (3) US7007603B2 (fr)
EP (2) EP1479630A1 (fr)
CN (1) CN1302972C (fr)
AT (1) ATE348775T1 (fr)
AU (1) AU2002339388A1 (fr)
DE (2) DE10160754C2 (fr)
ES (1) ES2275920T3 (fr)
WO (1) WO2003045826A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8210103B2 (en) 2008-05-23 2012-07-03 Goss International Americas, Inc. Apparatus and method for supplying ribbons to a former
US8991694B2 (en) * 2011-12-21 2015-03-31 Ncr Corporation Item removal

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2278188A (en) * 1940-08-03 1942-03-31 Interchem Corp Method of and apparatus for delivering sheets
US2788738A (en) * 1950-08-03 1957-04-16 Robert W Wood Printing press for printing newspapers and the like
NL137201C (fr) 1965-05-27
US3363520A (en) * 1965-10-21 1968-01-16 West Virginia Pulp & Paper Co Means for collecting and transferring sheet material
CH609642A5 (fr) * 1975-11-06 1979-03-15 Goebel Gmbh Maschf
DE3321811C2 (de) * 1983-06-16 1986-01-02 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Falzapparat für Rollenrotationsdruckmaschinen
IT1185102B (it) * 1985-06-14 1987-11-04 Cerutti Spa Off Mec Dispositivo per produrre in modo continuo un periodico,munito di una copertina di carta piu' pesante
DE4120628A1 (de) * 1991-06-22 1992-12-24 Roland Man Druckmasch Einrichtung zum querschneiden und/oder -perforieren von bahnen
EP0575711A1 (fr) * 1992-05-27 1993-12-29 Mars, Incorporated Dispositif pour le stockage à court terme de billets de banque
US5735516A (en) * 1992-05-27 1998-04-07 Mars Incorporated Apparatus for handling sheets
DE4241810C2 (de) * 1992-12-11 2001-01-04 Heidelberger Druckmasch Ag Formatvariabler Kombinationsfalzapparat
DE9417127U1 (de) * 1994-10-25 1994-12-22 Maschinenfabrik Goebel Gmbh, 64293 Darmstadt Einrichtung zum Verarbeiten von Material
DE10107368A1 (de) * 2001-02-16 2002-08-29 Heidelberger Druckmasch Ag Vorrichtung zum Führen flächiger Exemplare in Falzapparaten

Also Published As

Publication number Publication date
US7007603B2 (en) 2006-03-07
US20060065140A1 (en) 2006-03-30
US7134392B2 (en) 2006-11-14
EP1446344B8 (fr) 2007-03-14
CN1302972C (zh) 2007-03-07
EP1446344A1 (fr) 2004-08-18
US7191704B2 (en) 2007-03-20
AU2002339388A1 (en) 2003-06-10
ES2275920T3 (es) 2007-06-16
WO2003045826A1 (fr) 2003-06-05
DE10160754A1 (de) 2003-05-22
ATE348775T1 (de) 2007-01-15
EP1479630A1 (fr) 2004-11-24
DE10160754C2 (de) 2003-10-09
CN1585720A (zh) 2005-02-23
DE50209034D1 (de) 2007-02-01
US20060065141A1 (en) 2006-03-30
US20050017425A1 (en) 2005-01-27

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