EP1901895B1 - Procede permettant de menager une rainure de verrouillage dans un flanc de rainure - Google Patents

Procede permettant de menager une rainure de verrouillage dans un flanc de rainure Download PDF

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Publication number
EP1901895B1
EP1901895B1 EP06754125A EP06754125A EP1901895B1 EP 1901895 B1 EP1901895 B1 EP 1901895B1 EP 06754125 A EP06754125 A EP 06754125A EP 06754125 A EP06754125 A EP 06754125A EP 1901895 B1 EP1901895 B1 EP 1901895B1
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EP
European Patent Office
Prior art keywords
groove
milling head
locking groove
holder
locking
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Application number
EP06754125A
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German (de)
English (en)
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EP1901895A1 (fr
Inventor
Dirk Dammers
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Individual
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Individual
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Priority to PL06754125T priority Critical patent/PL1901895T3/pl
Publication of EP1901895A1 publication Critical patent/EP1901895A1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27F—DOVETAILED WORK; TENONS; SLOTTING MACHINES FOR WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES
    • B27F1/00—Dovetailed work; Tenons; Making tongues or grooves; Groove- and- tongue jointed work; Finger- joints
    • B27F1/02—Making tongues or grooves, of indefinite length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G13/00—Cutter blocks; Other rotary cutting tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
    • B27M3/04—Manufacture or reconditioning of specific semi-finished or finished articles of flooring elements, e.g. parqueting blocks
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/02038—Flooring or floor layers composed of a number of similar elements characterised by tongue and groove connections between neighbouring flooring elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/01—Joining sheets, plates or panels with edges in abutting relationship
    • E04F2201/0153—Joining sheets, plates or panels with edges in abutting relationship by rotating the sheets, plates or panels around an axis which is parallel to the abutting edges, possibly combined with a sliding movement
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/30784—Milling including means to adustably position cutter
    • Y10T409/307952—Linear adjustment
    • Y10T409/308232—Linear adjustment and angular adjustment

Definitions

  • the invention relates to a method for introducing a locking groove in a groove flank of a provided in a panel, in particular floor panel, connecting groove, which is part of a tongue and groove connection for connecting adjacent panels, wherein the panel has an upper and a lower side; and the locking groove is provided in the part of the connecting groove which is surrounded on both sides by groove flanks (see eg US-A-2009/0177584 , FIGS. 10a to 10c).
  • Locking grooves serve to lock two adjacent laid panels. They serve to receive a correspondingly formed locking element, which is usually on or on one of the two spring sides of a spring, which is integrally formed on the opposite side edge of the panel.
  • the insertion of two adjacent panels can be done for example by a pivoting movement and / or by an exclusively horizontal displacement movement.
  • the disadvantage is that the use of such planing tools, especially with decreasing sharpness of the planing tool, does not allow the desired accuracy in the processing of the panels and sometimes high holding forces for holding the planing tool are required.
  • the object of the invention is therefore to avoid the aforementioned disadvantages and to provide a method that simplifies the introduction of a locking groove in the groove flank.
  • the locking groove by means of a rotating milling tool, which includes a drive, a milling head and a rotation of the drive on the milling head transmitting transmission device and a holder for the milling head is introduced, wherein the milling head at least bracket side due to Holder has a deviating from the actual radius R free radius r and the milling head during insertion of the locking groove at least with its entire free radius r, in particular completely, in the part of the connecting groove surrounded on both sides of groove flanks.
  • a rotating milling tool which includes a drive, a milling head and a rotation of the drive on the milling head transmitting transmission device and a holder for the milling head is introduced, wherein the milling head at least bracket side due to Holder has a deviating from the actual radius R free radius r and the milling head during insertion of the locking groove at least with its entire free radius r, in particular completely, in the part of the connecting groove surrounded on both sides of groove flanks.
  • the free radius r determines the maximum achievable locking groove depth because of the actual radius R, the radius of the holder must be deducted.
  • the free radius r is between the axis of rotation of the rotary milling tool and the point of the rotary milling tool that is closest to the groove bottom. If the holder is not designed as a central shaft holding the milling head, a free radius r can result in the case of an out-of-center holder which is greater than the radius R of the milling head.
  • the actual distance between the holder-side outer edge of the milling head and the outer edge of the holder, in particular a center of the milling head holding shaft understood.
  • this term also includes the corresponding distances between the extended projection of the outer edge of the holder and the outer edge of the milling head at axially spaced from the holder points of the milling head.
  • non-cylindrical design of the milling head result in so far different "free radii r" along the axial extent of the milling head.
  • the dimensions of the milling head are small, in particular, the diameter of the milling head is small, ie it has a maximum of the total value resulting from the height of the connecting groove and the depth (n) of the locking groove (s), both the height of the connecting groove as well as the depth of the respective locking groove in Direction orthogonal to the axis of rotation of the milling head can be seen.
  • the introduction of the locking groove is effected by a relative movement between the panel and the milling head along the side edge into which the locking groove is to be introduced.
  • the milling head can alternatively be inserted for lateral insertion into the connecting groove in the direction of the arrow 18 in the connecting groove and then rotated to create the locking groove at this point.
  • the holder may be formed by a rigidly shaped transmission device, e.g. be designed as a rigid shaft, so that the transmission device not only transmits the rotary motion to the milling head but also holds the milling head.
  • the holder may also be formed as a separate component, in which case the transmission device may be, for example, a toothed belt or a toothed wheel or wheel.
  • the free radius r may be greater than the actual radius R of the milling head.
  • the locking groove is formed as an open area behind a projecting portion of the groove flank of the connecting groove. It is obvious that the projecting portion of the groove flank does not have to represent the entire remaining groove flank. Thus, seen in the insertion direction in front of the projecting portion, ie in the region of the groove flanks facing away from the connecting groove base, again a recessed part region may be provided.
  • the transmission device may for example be designed as a rigid shaft, on the end of the milling head is attached. The end of the shaft opposite the milling head is connected to the drive.
  • the milling head is designed in terms of its geometry so that the locking groove can be introduced with the intended contour in the groove flank.
  • the general orientation of the transmission device can be parallel as well as at an angle to the top or bottom. This depends on the one hand on the contour of the milling head and the intended contour of the introduced locking groove and on the other hand on the general configuration of the side edge of the panel in question.
  • the invention further relates to a method for introducing a locking groove in a groove flank of a provided in a panel, in particular floor panel, connecting groove, which is part of a tongue and groove connection for connecting adjacent panels, wherein the panel has a top and a bottom, and the Locking groove is provided in the part of the connecting groove, which is surrounded on both sides by groove flanks, wherein the groove flanks are of different lengths relative to the groove base, characterized characterized in that the locking groove by means of a rotary milling tool, which includes a drive, a milling head and a rotation of the drive on the milling head transmitting transmission device and a holder for the milling head is introduced, wherein the milling head at least bracket side due to the holder has a free radius r and the milling head during insertion of the locking groove is at least a substantial proportion of its free radius r, in particular completely, in the part of the connecting groove surrounded on both sides by groove flanks, wherein the free radius r is completely between the long groove flank and
  • the invention further relates to a method for introducing a locking groove into a groove flank of a connecting groove provided in a panel, in particular a floor panel, which is part of a tongue and groove connection for connecting adjacent panels, the panel having a top and a bottom, and the locking groove is provided in the part of the connecting groove which is surrounded on both sides by groove flanks, the groove flanks differing with respect to the groove base are long, characterized in that the locking groove by means of a rotating milling tool, which includes a drive, a milling head and a rotation of the drive on the milling head transmitting transmission device and a holder for the milling head is introduced, wherein the milling head at least bracket side due to Holder has a free radius r and the milling head during insertion of the locking groove is at least with its free radius r, in particular completely, between the long groove flank and the projection P extended short groove flank.
  • a rotating milling tool which includes a drive, a milling head and a rotation of the drive on the milling head transmit
  • the axes of rotation of the milling head and the drive can be aligned so that the rotation of the drive takes place about the same axis as that of the milling head.
  • the transmission device is designed, for example, as a rigid shaft.
  • At least one deflection device in particular an angular gear and / or a flexible shaft, can be provided between the milling head and the transmission device.
  • An example of a bevel gear would be a design like a "dentist's drill".
  • several deflection can be provided for a multiple deflection.
  • the overall height of the milling head and holder can be related to the dimensions of the connecting groove and the locking groove (s), in each case depending on the angle of rotation of the milling head relative to the orientation of the top and bottom of the panel.
  • the deflecting device can be at least substantially, in particular completely, in the connecting groove surrounded by the two groove flanks.
  • the invention relates to the use of a rotary milling tool, which includes a drive, a milling head and a transmission transmitting the rotation of the drive to the milling head and a holder for the milling head.
  • Such milling tools are used, for example, for the surface treatment of metallic workpieces or also of wooden workpieces by means of cutting removal.
  • the milling head is rotated by the drive, wherein the surface to be machined of the workpiece is processed depending on the configuration of the milling head with the end face and / or the circumferential side surface of the milling head.
  • the axes of rotation of the milling head and drive can be substantially aligned with each other, so that the rotation of the drive takes place about the same axis as that of the milling head.
  • the transmission device is designed, for example, as a rigid shaft.
  • At least one deflection device in particular an angular gear and / or a flexible shaft, can be provided between the milling head and the transmission device.
  • An example of a bevel gear would be a design like a "dentist's drill".
  • several deflection can be provided for a multiple deflection.
  • the overall height of the milling head and holder can be related to the dimensions of the connecting groove and the locking groove (s), in each case depending on the angle of rotation of the milling head relative to the orientation of the top and bottom of the panel.
  • FIGS. 1 to 7 and 10 and 11 a side edge of a panel 1 is shown in section.
  • the panel 1 has an upper side 2 and a lower side 3.
  • a connecting groove 4 is provided, which is surrounded by groove flanks 5, 6.
  • the connecting groove 4 divides the panel 1 into an upper and a lower panel section 7, 8.
  • the top side 2 facing groove flank 5 is formed approximately parallel and has a parallel to the side edge extending locking groove 9.
  • the lower groove flank 6 points in the Fig. 1 to 5 and 7 a curved in the direction of the bottom 3 contour. In Fig. 6 . 10 and 11 the lower groove flank 6 is also aligned parallel to the upper side 2.
  • the lower panel section 8 with the curved or parallel groove flank 6 is opposite the side edge and thus formed projecting with respect to the panel section 7 and points in the Fig. 1 to 7 an aligned in the direction of the top 2 wall portion 10.
  • the height of the wall portion 10 with respect to the connecting groove 4 is selected so that a - as will be explained later - horizontal alignment of a transfer device 11 of a milling tool 12 is possible.
  • a locking element is provided, which engages in the locked state in the provided in the upper groove flank 5 locking groove 9.
  • a milling tool 12 consisting of a milling head 13, formed of a rigid shaft formed as a transmission device 11 and a drive 14.
  • the milling head 13 has in the in the FIGS. 1 and 2 illustrated embodiment, an approximately triangular outer contour, so that thus triangular Verrieglungsnuten 9 or diamond-shaped recesses, as in Fig. 2 indicated, can be produced.
  • the axes of rotation of the milling head 13 and drive 14 are aligned with each other.
  • the dimensioning of the milling head 13 is selected so that a locking groove 9 triangular cross-section is generated only in the upper groove flank 5, when the rotating around the transfer device 11 milling head 13 either along the side edges or the panel 1 with the side edge along the milling tool 12 is performed.
  • Fig. 3 as well as the 10 and 11 show an approximately rectangular outer contour of the milling head 13, so that a locking groove 9 can be produced with a corresponding rectangular configuration.
  • the orientation of the transmission device 11 can also be aligned at an angle to the top side 2 of the panel 1. The orientation depends on the orientation of the intended locking groove 9.
  • transmission device 11 as a flexible shaft and to be flexible so far to align the milling head 13 even better.
  • FIGS. 4 and 5 an embodiment is shown in which between the milling head 13 and the transmission device 11, a deflection device 16 is shown in the form of an angular gear.
  • This embodiment also allows the introduction of locking grooves 9 in panels 1, in which the wall portion 10 of the lower panel section 8 is designed higher than the connecting groove 4 and thus the connecting groove 4, as in Fig. 5 is shown, completely or partially hidden.
  • the locking groove 9 is formed as an open area behind a projecting portion 17 of the groove flank 5 of the connecting groove 4.
  • a recessed portion 20 is again provided in the insertion direction (arrow 18) seen in front of the projecting portion 17, ie in the connection groove bottom 19 remote from the region of the groove flank 5, a recessed portion 20 is again provided.
  • the projecting portion 17 is curved. It is obvious that a groove flank 5 or 6 may have a plurality of mutually parallel protruding portions 17 and intervening locking grooves 9 and recessed portions 20.
  • the milling head 13 has a circumferential recess 21, whose contour corresponds to the contour of the projecting portion 17. If a plurality of protruding partial regions 17 are desired, then the milling head 13 has a corresponding number of circumferential recesses 21.
  • one or more locking grooves (s) 9 can be introduced into the lower and upper groove flanks 6, 5 at the same time, ie in one operation, using the method according to the invention.
  • a milling head 13 is shown with an approximately semicircular cross section. As clearly shown in the figure, the milling head 13 is during insertion of the locking groove 9 with a substantial portion of its free radius r in the both sides of the groove flanks 5, 6 surrounded part of the connecting groove 4th
  • Fig. 8 is shown on an enlarged scale, a milling head 13 with an approximately trapezoidal cross-section. From this figure, it is clear that the free radius r on the one hand, the actual distance between the holder-side outer edge of the milling head 13 and the outer edge of the formed as a shaft transmission device 11 is understood.
  • this term also encompasses the corresponding distances between the extended projection of the outer edge of the transmission device 11 designed as a shaft and the outer edge of the milling head 13 at locations of the milling head 13 spaced axially from the holder (as a transmission shaft 11) due to the non-cylindrical shape Training the milling head 13 resulted in so far different "free radii r" along the axial extent of the milling head 13th
  • the transmission device 11 also serves as a holder for the milling head 13.
  • the free radius r is smaller than the actual radius R of the respective milling head thirteenth
  • the holder is designed as a separate component in the form of an angle, wherein the milling head 13 is rotatably supported by a screw 23 on the holder 22.
  • a ring gear 24 is integrally formed on the milling head 13, which meshes with a gear 25 driven by a drive, not shown. Due to the particular configuration of the holder 22, in this embodiment, the free radius r is greater than the actual, relative to the axis of rotation of the milling head 13 radius R, so that locking grooves 9 of great depth can be introduced.
  • the milling head 13 is during insertion of the locking groove 9 with a substantial portion of its free radius r in the both sides of the groove flanks 5, 6 surrounded part of the connecting groove 4, wherein the free radius r at the same time completely between the long groove flank 6 and the extended in P projection short groove edge 5 is located.
  • Fig. 11 a position of the milling head 13 is shown, in which the milling head 13 is during insertion of the locking groove 9 with its free radius r between the long groove flank 6 and extended in projection P groove flank 5.
  • the milling head 13 is only in a small proportion in the part of the connecting groove 4 which surrounds the groove flank 5, 6 on both sides.

Claims (6)

  1. Procédé pour ménager une rainure de verrouillage (9) dans un flanc (5, 6) d'une rainure de rattachement (4) qui est prévue dans un panneau (1), notamment un panneau de planchéiage, et fait partie d'un assemblage par rainures et languettes pour solidariser des panneaux voisins (1), ledit panneau (1) présentant des faces supérieure et inférieure (2, 3), et la rainure de verrouillage (9) étant prévue dans la partie de la rainure de rattachement (4) ceinturée de part et d'autre par des flancs (5, 6), caractérisé par le fait que ladite rainure de verrouillage (9) est pratiquée au moyen d'un outil rotatif de fraisage (12) comprenant un entraînement (14), une tête de fraisage (13) et un dispositif de transmission (11) répercutant la rotation dudit entraînement (14) sur ladite tête de fraisage (13), ainsi qu'un support dédié à ladite tête de fraisage (13), sachant que ladite tête de fraisage (13) possède un rayon libre (r) au moins du côté du support, suite à la présence dudit support ; et que, durant le façonnage de la rainure de verrouillage (9), ladite tête de fraisage (13) se trouve au moins par la totalité de son rayon libre (r), en particulier intégralement, dans la partie de la rainure de rattachement (4) ceinturée, de part et d'autre, par des flancs (5, 6).
  2. Procédé pour ménager une rainure de verrouillage (9) dans un flanc (5, 6) d'une rainure de rattachement (4) qui est prévue dans un panneau (1), notamment un panneau de planchéiage, et fait partie d'un assemblage par rainures et languettes pour solidariser des panneaux voisins (1), ledit panneau (1) présentant des faces supérieure et inférieure (2, 3), et la rainure de verrouillage (9) étant prévue dans la partie de la rainure de rattachement (4) ceinturée de part et d'autre par des flancs (5, 6), lesdits flancs (5, 6) étant différemment longs vis-à-vis du fond de la rainure, caractérisé par le fait que ladite rainure de verrouillage (9) est pratiquée au moyen, d'un outil rotatif de fraisage (12) comprenant un entraînement (14), une tête de fraisage (13) et un dispositif de transmission (11) répercutant la rotation dudit entraînement (14) sur ladite tête de fraisage (13), ainsi qu'un support dédié à ladite tête de fraisage (13), sachant que ladite tête de fraisage (13) possède un rayon libre (r) au moins du côté du support, suite à la présence dudit support ; que, durant le façonnage de la rainure de verrouillage (9), ladite tête de fraisage (13) se trouve au moins par une part notable de son rayon libre (r), en particulier intégralement, dans la partie de la rainure de rattachement (4) ceinturée, de part et d'autre, par des flancs (5, 6) ; et que ledit rayon libre (r) est intégralement situé entre le flanc long (5, respectivement 6) et le flanc court (6, respectivement 5) prolongé en projection (P).
  3. Procédé pour ménager une rainure de verrouillage (9) dans un flanc (5, 6) d'une rainure de rattachement (4) qui est prévue dans un panneau (1), notamment un panneau de planchéiage, et fait partie d'un assemblage par rainures et languettes pour solidariser des panneaux voisins (1), ledit panneau (1) présentant des faces supérieure et inférieure (2, 3), et la rainure de verrouillage (9) étant prévue dans la partie de la rainure de rattachement (4) ceinturée de part et d'autre par des flancs (5, 6), lesdits flancs (5, 6) étant différemment longs vis-à-vis du fond de la rainure, caractérisé par le fait que ladite rainure de verrouillage (9) est pratiquée au moyen d'un outil rotatif de fraisage (12) comprenant un entraînement (14), une tête de fraisage (13) et un dispositif de transmission (11) répercutant la rotation dudit entraînement (14) sur ladite tête de fraisage (13), ainsi qu'un support dédié à ladite tête de fraisage (13), sachant que ladite tête de fraisage (13) possède un rayon libre (r) au moins du côté du support, suite à la présence dudit support ; et que, durant le façonnage de la rainure de verrouillage (9), ladite tête de fraisage (13) se trouve au moins par son rayon libre (r), en particulier intégralement, entre le flanc long (5, respectivement 6) et le flanc court (6, respectivement 5) prolongé en projection (P).
  4. Procédé selon l'une des revendications précédentes, caractérisé par le fait que les axes de rotation de la tête de fraisage (13) et de l'entraînement (14) coïncident mutuellement.
  5. Procédé selon l'une des revendications 1 à 3, caractérisé par la présence, entre la tête de fraisage (13) et le dispositif de transmission (11), d'au moins un système de renvoi (16) revêtant, notamment, la forme d'un engrenage conique et/ou d'un arbre souple.
  6. Procédé selon la revendication 5, caractérisé par le fait que, durant le façonnage de la rainure de verrouillage (9), le système de renvoi (16) se trouve au moins pour l'essentiel, en particulier intégralement, dans la rainure de rattachement (4) ceinturée par les deux flancs.
EP06754125A 2005-06-06 2006-06-03 Procede permettant de menager une rainure de verrouillage dans un flanc de rainure Active EP1901895B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06754125T PL1901895T3 (pl) 2005-06-06 2006-06-03 Sposób wykonywania rowka blokującego w ściance wpustu

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102005026157 2005-06-06
DE102005026554A DE102005026554B4 (de) 2005-06-06 2005-06-08 Verfahren zum Einbringen einer Verriegelungsnut in eine Nutflanke
PCT/EP2006/005345 WO2006131289A1 (fr) 2005-06-06 2006-06-03 Procede permettant de menager une rainure de verrouillage dans un flanc de rainure

Publications (2)

Publication Number Publication Date
EP1901895A1 EP1901895A1 (fr) 2008-03-26
EP1901895B1 true EP1901895B1 (fr) 2009-08-12

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EP06754125A Active EP1901895B1 (fr) 2005-06-06 2006-06-03 Procede permettant de menager une rainure de verrouillage dans un flanc de rainure

Country Status (8)

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US (1) US8464768B2 (fr)
EP (1) EP1901895B1 (fr)
AT (1) ATE439223T1 (fr)
DE (2) DE102005026554B4 (fr)
ES (1) ES2331810T3 (fr)
PL (1) PL1901895T3 (fr)
RU (1) RU2395389C2 (fr)
WO (1) WO2006131289A1 (fr)

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DE102007062430B3 (de) 2007-12-20 2009-07-02 Flooring Technologies Ltd. Verfahren zum spanabhebenden Bearbeiten einer Seitenkante eines Paneels und Vorrichtung zum Durchführen des Verfahrens
CN106197214A (zh) * 2016-07-15 2016-12-07 武汉船用机械有限责任公司 一种桩腿齿条齿厚测量工装和测量方法
US10337190B2 (en) * 2017-08-08 2019-07-02 Ranat Tarananopas Board with tongue and tenon and method for manufacture of said board with tongue and tenon

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ATE439223T1 (de) 2009-08-15
EP1901895A1 (fr) 2008-03-26
RU2008100030A (ru) 2009-07-20
DE502006004525D1 (de) 2009-09-24
RU2395389C2 (ru) 2010-07-27
PL1901895T3 (pl) 2010-02-26
US8464768B2 (en) 2013-06-18
US20100154935A1 (en) 2010-06-24
ES2331810T3 (es) 2010-01-15
DE102005026554B4 (de) 2009-06-10
WO2006131289A1 (fr) 2006-12-14
DE102005026554A1 (de) 2006-12-28

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