EP0208832B1 - Device for gripping winding tubes, especially winding tubes supporting paper webs or the like - Google Patents
Device for gripping winding tubes, especially winding tubes supporting paper webs or the like Download PDFInfo
- Publication number
- EP0208832B1 EP0208832B1 EP86103137A EP86103137A EP0208832B1 EP 0208832 B1 EP0208832 B1 EP 0208832B1 EP 86103137 A EP86103137 A EP 86103137A EP 86103137 A EP86103137 A EP 86103137A EP 0208832 B1 EP0208832 B1 EP 0208832B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- elevations
- journal
- elements
- clamping
- pin
- 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
Links
Images
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
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/18—Constructional details
- B65H75/24—Constructional details adjustable in configuration, e.g. expansible
- B65H75/242—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages
- B65H75/246—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages expansion caused by relative rotation around the supporting spindle or core axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H16/00—Unwinding, paying-out webs
- B65H16/02—Supporting web roll
- B65H16/04—Supporting web roll cantilever type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H18/00—Winding webs
- B65H18/02—Supporting web roll
- B65H18/04—Interior-supporting
-
- 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
- B65H2301/41—Winding, unwinding
- B65H2301/413—Supporting web roll
- B65H2301/4134—Both ends type arrangement
- B65H2301/41346—Both ends type arrangement separate elements engaging each end of the roll (e.g. chuck)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2405/00—Parts for holding the handled material
- B65H2405/40—Holders, supports for rolls
- B65H2405/45—Shafts for winding/unwinding
-
- 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
- Y10T279/00—Chucks or sockets
- Y10T279/10—Expanding
- Y10T279/1037—Axially moving actuator
- Y10T279/1041—Wedge
-
- 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
- Y10T279/00—Chucks or sockets
- Y10T279/10—Expanding
- Y10T279/1083—Jaw structure
Definitions
- the invention relates to a device suitable for clamping tubular winding cores, in particular paper cores or similar material cores, with a plurality of tubular segment-shaped clamping elements arranged around a pin and radially adjustable in a cage and with supporting elements between the peripheral surface of the pin and the inner surface of the clamping elements, the outer surface of which has circumferentially adjacent elevations to form a positive connection with the winding tube.
- Such clamping devices work in such a way that when the torque is exerted on the pin, the clamping elements are moved radially outward into the clamping position via the supporting elements and are moved back into the starting position in the opposite direction of rotation.
- the outer surfaces of the clamping elements are either largely smooth or are provided with pointed serrations. Smooth surfaces have the advantage that they do not destroy or rub on the winding sleeves, which are designed as cardboard tubes, to be tensioned, but they have the considerable disadvantage that they can hardly transmit the required braking torques.
- Pointed corrugations such as z. B. have become known from a tensioning device according to DE-OS-3 329 330, have the advantage, however, that when they are pressed into the inner surface of the winding tube, a largely positive fit occurs and thus the moments can be better transmitted, but the considerable disadvantage, that when the braking torque is applied, the winding cores are very often rubbed out and thus destroyed. Furthermore, this grinding between the tensioning elements and the inner surface of the winding tubes leads to the fact that this connection is so closely interlocked that the loosening of the winding tubes after the rolling process is made considerably more difficult.
- the grinding or rubbing out of the inner surface of the winding tubes in the case of pointed serrations is due to the fact that when the tips are inserted into the winding tubes, extremely high local stresses occur on the inner surface of the winding tubes, which are also superimposed by the fact that these tips of the corrugation lie very close together . These local voltage peaks and their superimposition on the inner surface of the winding tubes often exceed the permissible voltage values of the winding tubes and thus initiate their destruction. If a torque is then also superimposed on this load, the load on the winding tubes is increased again, and the above-mentioned grinding or rubbing out of the winding tubes then occurs very quickly.
- the rotatable pin has an equilateral-polygonal core cross section and grooves in the pin surface, in which the support elements engage with a contact surface adapted to the cross-sectional shape of the bottom of the grooves.
- the clamping heads the loads on the pin, the clamping elements and the supporting elements themselves are reduced by the spherical configuration or planar configuration of the contact surfaces of the supporting elements, the effort for producing such a clamping device is nevertheless quite high.
- the production of a pin with a polygonal cross section is quite complex, and it also requires a precise adaptation of the shape of the bottom of the grooves in the pin and the configuration of the preferably convex contact surface of the support elements.
- the invention has for its object to provide a suitable device for clamping tubular winding cores, in particular paper webs or similar material cores, of the type mentioned, in which, on the one hand, good torque transmission is guaranteed, but on the other hand, damage to the winding cores to be tensioned is caused by undesirably high levels Voltage peaks is avoided.
- a high load-bearing capacity and low susceptibility to wear and thus a long service life should be achieved with simple and inexpensive training.
- the good torque transmission is achieved according to the invention in that the elevations are dome-shaped and have a comparatively large circumferential distance from one another in relation to their circumferential extent.
- Such dome-shaped elevations ensure that local voltage peaks are noticeably reduced and the forces introduced in the winding tube are widely distributed in the environment.
- the sufficiently large distance between the individual surveys ensures that stresses do not overlap in the winding tube.
- the elevations are designed as web-like or skid-like and arranged near the long sides of the tensioning elements.
- a diameter struck over the crests of the elevations is slightly larger than the inner diameter of the winding cores to be tensioned in each case. With this oversize it is ensured when pushing into the winding tube that the elevations are already pressed into the inner surface of the tube and thus initiate the positive locking between the clamping elements and the winding tube.
- the pre-deformation causes the Inner surface of the winding tube through the elevations no relative movement between the clamping elements and the winding tube, but the elevations are pressed deeper into the winding tube up to their stop and thus form the form fit.
- the clamping device with the excess of the elevations can be pushed very well into the winding sleeves, the elevations penetrating very well into the sleeve material when the tensioning elements expand and the form fit between the tensioning elements and the winding sleeve is very well developed, so that relative movements can be avoided when stressed by the torque due to this positive locking so that the winding sleeves cannot be rubbed out or ground.
- the toothing between the clamping elements and the winding tube is not so intensive that the tubes could not be detached from the clamping device after the rolling process.
- a radius corresponding to the curvature of the crests of the elevations is arranged with its center on a line running from the symmetry line of the tensioning element at an angle of approximately 20 to 30 °, preferably 25 °, and also the radii used to form the crests are designed in a certain way and the crests with transition surfaces merge into the outer surfaces of the clamping elements.
- the pin is polygonal in cross-section, preferably square, and the contact surface of the support elements is designed as a flat surface lying on side surfaces of the pin that extend parallel to one another in pairs.
- the previously considered necessary grooves in the cross-section of the pin for the support elements can be dispensed with, since their flat surface rests directly on the side surfaces of the pin.
- the polygon of the pin also has the advantage over polygonal pins that, due to its larger angle of attack, no jamming occurs when the clamping head is released between the support elements and the pin.
- the support elements are approximately hat-shaped in cross section.
- support elements designed in this way have the advantage that they optimally distribute the high forces into the adjacent components due to their flat contact with the journal and the dome-shaped support for the tensioning elements.
- the spherical cap formed by the spherical part of the support elements and the correspondingly shaped depressions in the inner surface of the clamping elements simultaneously forms a joint for the coupling between the clamping elements and the pin, so that tension cannot occur when the elements are displaced.
- the surface of the pin is expediently polished and nitrided.
- the pin - seen in cross section - is rounded at its corners and the pin, which is designed as a flange pin, is provided with an axial pressure bearing between the flange and an annular part of the cage.
- the tensioning device shown in FIGS. 1 and 2 has a pin 1 designed as a flange pin, in the flange of which 2 fastening screws 3 are inserted in order to be able to fasten the pin 1 to a device (not shown).
- An axial pressure bearing 5 is arranged between a ring part of a cage 4 surrounding the pin 1 and the flange 2 of the pin 1 in order to be able to absorb the axial forces that occur.
- window-like recesses 6 are provided distributed over the circumference of the cage 4, into which clamping elements 7 in the form of tubular segments are inserted.
- the tensioning elements 7 are held in the cage 4 by ring springs 8, 9 designed as tension springs.
- the cage 4 itself is fastened to the end face of the pin 1 by a guide disk 11 and a fastening screw 12.
- support elements 13 which are inserted with a hemispherical surface into a correspondingly hemispherical recess 15 in the inner surface 14 of the clamping elements 7 and on their side facing the pin have a flat contact surface 16 with which the support elements 13 rest on side surfaces 17 of the pin 1, each of which runs parallel to one another in pairs.
- the tensioning elements 7 With a torque exerted on the pin 1, the tensioning elements 7 are tightened via the support elements 13 moved radially outwards and in this way a tensioning of a winding tube, which is not shown, achieved.
- the support elements 13, which are essentially hat-shaped in cross section, ensure a flat contact between the support elements 13 and the pin 1 on the one hand and the tensioning elements 7 on the other hand at all rotational positions of the pin 1 and, owing to their spherical design, form on the side of the tensioning elements 7 and the recesses provided therein 15 for the support elements 13 a ball joint connection, which give the tensioning elements 7 a certain tilting movement about the axis of the pin 1.
- dome-shaped elevations 19 are provided on the outer surface 18 of the tensioning elements 7 in the area of the long sides of the tensioning elements 7.
- the web-like or skid-like elevations 19 are arranged in such a way that a diameter struck over their crests is slightly larger than the inside diameter of the winding tube to be tensioned in each case. This ensures that the elevations 19 are pressed into the inner surface of the winding tubes immediately after insertion into the winding tube and thus initiate a positive connection between the clamping elements 7 and the winding tube.
- a radius r1 forming the domes of the elevations 19 lies with its center on a line 22 extending from the symmetry line 21 of the tensioning element 7 at an angle of 25 °.
- the domes of the elevations 19 go into the outer surface 18 with curved transition surfaces on both sides of the elevations of the tensioning elements 7, the radius r2 of the transition surfaces being approximately twice as large as the radius r1 of the crests.
- the elevations provided on the outer surface 18 of the clamping elements 7 can extend continuously over the entire length of the clamping elements 7, but can also be provided with interruptions, so that a plurality of nub-like elevations 19 lie one behind the other on the same long side of the clamping elements 7.
- the tensioning device is assembled in such a way that the tensioning elements 7 are placed in the recesses 15 in the tensioning elements 7 on the pin 1 with the interposition of the support elements 13 and are fixed in the radial direction by the ring springs 8 and 9. Then the cage 4 is pushed over the pin 1 and this is then attached to the pin 1 via the guide plate 11 by means of the fastening screw 12.
Landscapes
- Winding Of Webs (AREA)
- Storage Of Web-Like Or Filamentary Materials (AREA)
- Making Paper Articles (AREA)
Description
Die Erfindung bezieht sich auf eine zum Aufspannen von rohrförmigen Wickelhülsen, insbesondere von Papierbahnen oder ähnliche Werkstoffbahnen tragenden Wickelhülsen geeignete Vorrichtung, mit mehreren um einen Zapfen herum angeordneten und in einem Käfig radial verstellbaren, rohrsegmentförmigen Spannelementen und mit Stützelementen zwischen der Umfangsfläche des Zapfens und der Innenfläche der Spannelemente, deren Außenfläche zur Ausbildung eines Formschlusses mit der Wickelhülse umfänglich nebeneinanderliegende Erhebungen aufweist.The invention relates to a device suitable for clamping tubular winding cores, in particular paper cores or similar material cores, with a plurality of tubular segment-shaped clamping elements arranged around a pin and radially adjustable in a cage and with supporting elements between the peripheral surface of the pin and the inner surface of the clamping elements, the outer surface of which has circumferentially adjacent elevations to form a positive connection with the winding tube.
Derartige Spannvorrichtungen arbeiten in der Weise, daß bei einem auf den Zapfen ausgeübten Drehmoment über die Stützelemente die Spannelemente in radialer Richtung nach außen in die Spannstellung bewegt und bei entgegengesetzter Drehrichtung wieder zurück in die Ausgangsstellung bewegt werden.Such clamping devices work in such a way that when the torque is exerted on the pin, the clamping elements are moved radially outward into the clamping position via the supporting elements and are moved back into the starting position in the opposite direction of rotation.
Bei bisher bekanntgewordenen Spannvorrichtungen sind die Außenflächen der Spannelemente entweder weitgehend glatt ausgebildet oder aber mit einer spitzzackigen Riffelung versehen. Glatte Oberflächen haben zwar den Vorteil, daß sie die als Papphülsen ausgebildeten zu spannenden Wickelhülsen an ihrer Innenkontur nicht zerstören oder aufreiben, aber den erheblichen Nachteil, daß sie die erforderlichen Bremsmomente kaum übertragen können.In the case of clamping devices which have become known, the outer surfaces of the clamping elements are either largely smooth or are provided with pointed serrations. Smooth surfaces have the advantage that they do not destroy or rub on the winding sleeves, which are designed as cardboard tubes, to be tensioned, but they have the considerable disadvantage that they can hardly transmit the required braking torques.
Spitzzackige Riffelungen, wie sie z. B. aus einer Spannvorrichtung gemäß der DE-OS-3 329 330 bekanntgeworden sind, haben zwar demgegenüber den Vorteil, daß bei ihrem Eindrücken in die Innenoberfläche der Wickelhülse ein weitgehender Formschluß entsteht und somit die Momente besser übertragen werden können, aber den erheblichen Nachteil, daß bei Aufbringung des Bremsmomentes die Wickelhülsen sehr häufig ausgerieben und damit zerstört werden. Ferner führt dieses Mahlen zwischen den Spannelementen und der Innenoberfläche der Wickelhülsen dazu, daß sich diese Verbindung so extrem verzahnt, daß das Lösen der Wickelhülsen nach dem Abrollvorgang erheblich erschwert wird. Das Ausmahlen bzw. Ausreiben der Innenoberfläche der Wickelhülsen bei spitzzackigen Riffelungen ist dadurch begründet, daß beim Einfahren der Spitzen in die Wickelhülsen extrem hohe lokale Spannungen an der Innenoberfläche der Wickelhülsen auftreten, die sich auch noch dadurch überlagern, daß diese Spitzen der Riffelung sehr dicht beieinanderliegen. Diese lokalen Spannungsspitzen und deren Überlagerung an der Innenoberfläche der Wickelhülsen überschreiten häufig die zulässigen Spannungswerte der Wickelhülsen und leiten somit deren Zerstörung ein. Wenn dieser Belastung dann auch noch ein Drehmomet überlagert ist, wird die Belastung der Wickelhülsen nochmals erhöht, und es kommt dann sehr schnell zu dem oben erwähnten Ausmahlen bzw. Ausreiben der Wickelhülsen.Pointed corrugations such as z. B. have become known from a tensioning device according to DE-OS-3 329 330, have the advantage, however, that when they are pressed into the inner surface of the winding tube, a largely positive fit occurs and thus the moments can be better transmitted, but the considerable disadvantage, that when the braking torque is applied, the winding cores are very often rubbed out and thus destroyed. Furthermore, this grinding between the tensioning elements and the inner surface of the winding tubes leads to the fact that this connection is so closely interlocked that the loosening of the winding tubes after the rolling process is made considerably more difficult. The grinding or rubbing out of the inner surface of the winding tubes in the case of pointed serrations is due to the fact that when the tips are inserted into the winding tubes, extremely high local stresses occur on the inner surface of the winding tubes, which are also superimposed by the fact that these tips of the corrugation lie very close together . These local voltage peaks and their superimposition on the inner surface of the winding tubes often exceed the permissible voltage values of the winding tubes and thus initiate their destruction. If a torque is then also superimposed on this load, the load on the winding tubes is increased again, and the above-mentioned grinding or rubbing out of the winding tubes then occurs very quickly.
Ferner besitzt der verdrehbare Zapfen einen gleichseitig-polygonalen Kernquerschnitt sowie Nuten in der Zapfenoberfläche, in welche die Stützelemente mit einer der Querschnittsform des Grundes der Nuten angepaßten Berührungsfläche eingreifen. Wenngleich bei solchen Spannköpfen durch die kugelförmige Ausbildung bzw. flächenformige Ausgestaltung der Berührungsflächen der Stützelemente die Belastungen am Zapfen, den Spannelementen und den Stützelementen selbst verringert wird, so ist der Aufwand zur Herstellung einer derartigen Spannvorrichtung doch recht hoch. So ist die Herstellung eines Zapfens mit polygonalem Querschnitt recht aufwendig, und es bedarf auch einer genauen Anpassung der Ausformung des Grundes der Nuten im Zapfen und der Ausgestaltung der vorzugsweise konvexen Berührungsfläche der Stützelemente.Furthermore, the rotatable pin has an equilateral-polygonal core cross section and grooves in the pin surface, in which the support elements engage with a contact surface adapted to the cross-sectional shape of the bottom of the grooves. Although in such clamping heads the loads on the pin, the clamping elements and the supporting elements themselves are reduced by the spherical configuration or planar configuration of the contact surfaces of the supporting elements, the effort for producing such a clamping device is nevertheless quite high. Thus, the production of a pin with a polygonal cross section is quite complex, and it also requires a precise adaptation of the shape of the bottom of the grooves in the pin and the configuration of the preferably convex contact surface of the support elements.
Der Erfindung liegt die Aufgabe zugrunde, eine zum Aufspannen von rohrförmigen Wickelhülsen, insbesondere von Papierbahnen oder ähnliche Werkstoffbahnen tragenden Wickelhülsen geeignete Vorrichtung der eingangs genannten Art zu schaffen, bei der einerseits eine gute Drehmomentübertragung gewährleistet, andererseits aber eine Beschädigung der zu spannenden Wickelhülsen durch unerwünscht hohe Spannungsspitzen vermieden wird. Außerdem soll bei einfacher und preisgünstiger Ausbildung eine hohe Tragfähigkeit und geringe Verschleißanfälligkeit und damit lange Lebensdauer erreicht werden.The invention has for its object to provide a suitable device for clamping tubular winding cores, in particular paper webs or similar material cores, of the type mentioned, in which, on the one hand, good torque transmission is guaranteed, but on the other hand, damage to the winding cores to be tensioned is caused by undesirably high levels Voltage peaks is avoided. In addition, a high load-bearing capacity and low susceptibility to wear and thus a long service life should be achieved with simple and inexpensive training.
Die gute Drehmomentübertragung wird erfindungsgemäß dadurch erreicht, daß die Erhebungen Kalottenform und in bezug zu ihrem umfänglichen Ausmaß vergleichsweise großen umfänglichen Abstand voneinander aufweisen. Derartige kalottenförmige Erhebungen sorgen dafür, daß lokale Spannungsspitzen merklich abgebaut werden und die eingeleiteten Kräfte in der Wickelhülse stark in die Umgebung verteilt werden. Der ausreichend groß gewählte Abstand zwischen den einzelnen Erhebungen sorgt dafür, daß es nicht zu Überlagerungen von Beanspruchungen in der Wickelhülse kommt.The good torque transmission is achieved according to the invention in that the elevations are dome-shaped and have a comparatively large circumferential distance from one another in relation to their circumferential extent. Such dome-shaped elevations ensure that local voltage peaks are noticeably reduced and the forces introduced in the winding tube are widely distributed in the environment. The sufficiently large distance between the individual surveys ensures that stresses do not overlap in the winding tube.
In zweckmäßiger Ausgestaltung der Erfindung sind die Erhebungen als stegartig bzw. kufenartig ausgebildet und nahe der Längsseiten der Spannelemente angeordnet. Dabei ist ein über die Kuppen der Erhebungen geschlagener Durchmesser geringfügig größer als der Innendurchmesser der jeweils zu spannenden Wickelhülsen. Mit diesem Übermaß wird beim Einschieben in die Wickelhülse dafür gesorgt, daß bereits die Erhebungen in die Hülseninnenoberfläche eingedrückt werden und somit den Formschluß zwischen den Spannelementen und der Wickelhülse einleiten. Wenn bei Inbetriebnahme der Spannvorrichtung die Spannelemente radial nach außen bewegt werden, so tritt aufgrund der Vorverformung der Innenoberfläche der Wickelhülse durch die Erhebungen keine Relativbewegung zwischen den Spannelementen und der Wickelhülse auf, sondern die Erhebungen werden tiefer bis zu ihrem Anschlag in die Wickelhülse eingedrückt und bilden damit den Formschluß voll aus.In an expedient embodiment of the invention, the elevations are designed as web-like or skid-like and arranged near the long sides of the tensioning elements. A diameter struck over the crests of the elevations is slightly larger than the inner diameter of the winding cores to be tensioned in each case. With this oversize it is ensured when pushing into the winding tube that the elevations are already pressed into the inner surface of the tube and thus initiate the positive locking between the clamping elements and the winding tube. If the tensioning elements are moved radially outwards when the tensioning device is started up, the pre-deformation causes the Inner surface of the winding tube through the elevations no relative movement between the clamping elements and the winding tube, but the elevations are pressed deeper into the winding tube up to their stop and thus form the form fit.
Wie Praxisversuche gezeigt haben, läßt sich die Spannvorrichtung mit dem Übermaß an den Erhebungen sehr gut in die Wickelhülsen einschieben, dabei dringen die Erhebungen sehr gut in das Hülsenmaterial beim Expandieren der Spannelemente ein und der Formschluß zwischen den Spannelementen und der Wickelhülse wird sehr gut ausgebildet, so daß bei Beanspruchung durch das Drehmoment durch diesen Formschluß Relativbewegungen vermieden werden, so daß es nicht zum Ausreiben oder Ausmahlen der Wickelhülsen kommen kann. Andererseits ist die Verzahnung zwischen den Spannelementen und der Wickelhülse nicht so intensiv, daß man nach dem Abrollvorgang die Hülsen nicht von der Spanvorrichtung lösen könnte.As practical tests have shown, the clamping device with the excess of the elevations can be pushed very well into the winding sleeves, the elevations penetrating very well into the sleeve material when the tensioning elements expand and the form fit between the tensioning elements and the winding sleeve is very well developed, so that relative movements can be avoided when stressed by the torque due to this positive locking so that the winding sleeves cannot be rubbed out or ground. On the other hand, the toothing between the clamping elements and the winding tube is not so intensive that the tubes could not be detached from the clamping device after the rolling process.
Dazu trägt bei, daß ein dem Krümmungsverlauf der Kuppen der Erhebungen entsprechender Radius mit seinem Mittelpunkt auf einer von der Symmetrielinie des Spannelements unter einem Winkel von ungefähr 20 bis 30°, vorzugsweise 25° verlaufenden Linie angeordnet ist und außerdem die zur Bildung der Kuppen dienenden Radien in einer bestimmten Weise ausgebildet sind sowie die Kuppen mit Übergangsflächen in die Außenflächen der Spannelemente übergehen.This contributes to the fact that a radius corresponding to the curvature of the crests of the elevations is arranged with its center on a line running from the symmetry line of the tensioning element at an angle of approximately 20 to 30 °, preferably 25 °, and also the radii used to form the crests are designed in a certain way and the crests with transition surfaces merge into the outer surfaces of the clamping elements.
Zur Erzielung einer hohen Tragfähigkeit und langer Lebensdauer ist in weiterer Ausgestaltung der Erfindung der Zapfen im Querschnitt mehreckig, vorzugsweise quadratisch und die Berührungsfläche der Stützelemente als an sich jeweils paarweise parallel zueinander erstreckenden Seitenflächen des Zapfens anliegende ebene Fläche ausgebildet ist. Auf diese Weise können die bisher für erforderlich gehaltenen Nuten im Zapfenquerschnitt für die Stützelemente entfallen, da diese mit ihrer ebenen Fläche unmittelbar auf den Seitenflächen des Zapfens anliegen. Hierdurch wird nicht nur die Herstellung der Spannvorrichtung wesentlich vereinfacht und verbilligt, sondern die flächige Berührung zwischen Zapfen und Stützelementen bei allen Drehlagen des Zapfens beibehalten. Der Mehrkant des Zapfens hat ferner gegenüber polygonhaften Zapfen den Vorteil, daß aufgrund seines größeren Anstellwinkels keine Verklemmung beim Lösen des Spannkopfes zwischen den Stützelementen und dem Zapfen auftritt.In order to achieve a high load-bearing capacity and a long service life, in a further embodiment of the invention the pin is polygonal in cross-section, preferably square, and the contact surface of the support elements is designed as a flat surface lying on side surfaces of the pin that extend parallel to one another in pairs. In this way, the previously considered necessary grooves in the cross-section of the pin for the support elements can be dispensed with, since their flat surface rests directly on the side surfaces of the pin. As a result, not only is the manufacture of the tensioning device considerably simplified and reduced in cost, but the surface contact between the pin and the support elements is maintained at all rotational positions of the pin. The polygon of the pin also has the advantage over polygonal pins that, due to its larger angle of attack, no jamming occurs when the clamping head is released between the support elements and the pin.
In zweckmäßiger Ausgestaltung sind die Stützelemente im Querschnitt etwa hutförmig ausgebildet. In ihrer Aufgabe als kraftführende Elemente haben derartig gestaltete Stützelemente den Vorteil, daß sie sowohl aufgrund ihrer flächigen Anlage am Zapfen als auch an der kalottenförmigen Auflage zu den Spannelementen die hohen Kräfte optimal in die anliegenden Bauteile verteilen. Die von dem kugelförmigen Teil der Stützelemente und den entsprechend gestalteten Vertiefungen in der Innenfläche der Spannelemente gebildete Kugelkalotte bildet gleichzeitig ein Gelenk für die Kopplung zwischen den Spannelementen und dem Zapfen, so daß es bei Versetzungen der Elemente nicht zu Verspannungen kommen kann.In an expedient embodiment, the support elements are approximately hat-shaped in cross section. In their task as force-guiding elements, support elements designed in this way have the advantage that they optimally distribute the high forces into the adjacent components due to their flat contact with the journal and the dome-shaped support for the tensioning elements. The spherical cap formed by the spherical part of the support elements and the correspondingly shaped depressions in the inner surface of the clamping elements simultaneously forms a joint for the coupling between the clamping elements and the pin, so that tension cannot occur when the elements are displaced.
Um Höchstlasten durch diese Spannvorrichtung übertragen zu können, ist zweckmäßigerweise die Oberfläche des Zapfens poliert und nitriert.In order to be able to transmit maximum loads through this clamping device, the surface of the pin is expediently polished and nitrided.
Zur Führung trägt ferner bei, daß der Zapfen - im Querschnitt gesehen - an seinen Ecken abgerundet ausgebildet ist und der als Flanschzapfen ausgebildete Zapfen zwischen dem Flansch und einem Ringteil des Käfigs mit einem Axialdrucklager versehen ist. Diese Maßnahmen tragen ebenso dazu bei, Höchstbelastungen aufnehmen bzw. übertragen zu können.Also contributes to the guide that the pin - seen in cross section - is rounded at its corners and the pin, which is designed as a flange pin, is provided with an axial pressure bearing between the flange and an annular part of the cage. These measures also help to be able to absorb or transfer maximum loads.
Ein bevorzugtes Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher erläutert. Es zeigen:
- Fig. 1 einen Schnitt entlang der Linie I-1 der Fig. 2,
- Fig. 2 einen Schnitt entlang der Linie 11-11 der Fig. 1,
- Fig. 3 eine Aufsicht auf ein Spannelement der Spannvorrichtung und
- Fig. 4 einen Schnitt entlang der Linie IV-IV der Fig. 3 in vergrößertem Maßstab.
- 1 shows a section along the line I-1 of FIG. 2,
- 2 shows a section along the line 11-11 of FIG. 1,
- Fig. 3 is a plan view of a clamping element of the clamping device and
- Fig. 4 is a section along the line IV-IV of Fig. 3 on an enlarged scale.
Die in den Figuren 1 und 2 dargestellte Spannvorrichtung besitzt einen als Flanschzapfen ausgebildeten Zapfen 1, in dessen Flansch 2 Befestigungsschrauben 3 eingesetzt sind, um den Zapfen 1 an einer nicht dargestellten Einrichtung befestigen zu können. Zwischen einem Ringteil eines den Zapfen 1 umgebenden Käfigs 4 und dem Flansch 2 des Zapfens 1 ist ein Axialdrucklager 5 angeordnet, um die auftretenden Axialkräfte aufnehmen zu können. Wie insbesondere aus Fig. 1 hervorgeht, sind über den Umfang des Käfigs 4 verteilt fensterartige Ausnehmungen 6 vorgesehen, in die rohrsegmentförmige Spannelemente 7 eingesetzt sind. Die Spannelemente 7 sind durch als Zugfedern ausgebildete Ringfedern 8, 9 im Käfig 4 gehalten. Der Käfig 4 selbst ist durch eine Führungsscheibe 11 und eine Befestigungsschraube 12 an der Stirnseite des Zapfens 1 befestigt.The tensioning device shown in FIGS. 1 and 2 has a pin 1 designed as a flange pin, in the flange of which 2 fastening screws 3 are inserted in order to be able to fasten the pin 1 to a device (not shown). An axial pressure bearing 5 is arranged between a ring part of a cage 4 surrounding the pin 1 and the flange 2 of the pin 1 in order to be able to absorb the axial forces that occur. As can be seen in particular from FIG. 1, window-like recesses 6 are provided distributed over the circumference of the cage 4, into which
Zwischen den Spannsegmenten 7 und dem Zapfen 1 sind Stützelemente 13 angeordnet, die mit einer halbkugelförmig ausgebildeten Fläche in eine entsprechend halbkugelförmig in der Innenfläche 14 der Spannelemente 7 angebrachten Vertiefung 15 eingelegt sind und an ihrer dem Zapfen zugewandten Seite eine ebene Berührungsfläche 16 aufweisen, mit der die Stützelemente 13 auf jeweils paarweise parallel zueinander verlaufenden Seitenflächen 17 des Zapfens 1 anliegen. Bei einem auf den Zapfen 1 ausgeübten Drehmoment werden die Spannelemente 7 über die Stützelemente 13 radial nach außen bewegt und auf diese Weise ein Spannen einer Wickelhülse, die nicht dargestellt ist, erreicht.Between the
Die im wesentlichen im Querschnitt hutförmig ausgebildeten Stützelemente 13 gewährleisten bei allen Drehlagen des Zapfens 1 eine flächige Berührung zwischen den Stützelementen 13 und dem Zapfen 1 einerseits und den Spannelementen 7 andererseits und bilden aufgrund ihrer kugelförmigen Ausbildung auf der Seite der Spannelemente 7 und der darin vorgesehenen Vertiefungen 15 für die Stützelemente 13 eine Kugelgelenkverbindung, die den Spannelementen 7 eine gewisse Kippbeweglichkeit um die Achse des Zapfens 1 geben.The
Um ein exaktes Spannen ohne Spannungsspitzen zu erreichen, sind auf der Außenfläche 18 der Spannelemente 7 im Bereich der Längsseiten der Spannelemente 7 kalottenförmige Erhebungen 19 vorgesehen. Die stegartig bzw. kufenartig ausgebildeten Erhebungen 19 sind dabei derart angeordnet, daß ein über deren Kuppen geschlagener Durchmesser geringfügig größer als der Innendurchmesser der jeweils zu spannenden Wickelhülse ist. Hierdurch wird sichergestellt, daß schon direkt nach dem Einschieben in die Wickelhülse die Erhebungen 19 in die Innenoberfläche der Wickelhülsen eingedrückt werden und somit ein Formschluß zwischen den Spannelementen 7 und der Wickelhülse einleiten. Ferner liegt ein die Kuppen der Erhebungen 19 bildender Radius r1 mit seinem Mittelpunkt auf einer von der Symmetrielinie 21 des Spannelementes 7 unter einem Winkel von 25° verlaufenden Linie 22. Schließlich gehen die Kuppen der Erhebungen 19 beidseitig der Erhebungen mit gekrümmten Übergangsflächen in die Außenfläche 18 der Spannelemente 7 über, wobei jeweils der Radius r2 der Übergangsflächen etwa doppelt so groß, wie der Radius r1 der Kuppen ist.In order to achieve an exact tensioning without tension peaks, dome-
Die auf der Außenfläche 18 der Spannelemente 7 vorgesehenen Erhebungen können sich ununterbrochen über die gesamte Länge der Spannelemente 7 erstrecken, jedoch auch mit Unterbrechungen versehen sein, so daß mehrere noppenartige Erhebungen 19 hintereinander auf der gleichen Längsseite der Spannelemente 7 liegen.The elevations provided on the
Um das Einführen der Spannvorrichtung bzw. des Spannkopfes bei sehr harten Hülsen-Innenoberflächen zu erleichtern, kann es vorteilhaft sein, die Erhebungen in Längsrichtung mit einer geringen Steigung zu versehen.In order to facilitate the insertion of the clamping device or the clamping head in the case of very hard sleeve inner surfaces, it can be advantageous to provide the elevations with a slight slope in the longitudinal direction.
Der Zusammenbau der Spannvorrichtung erfolgt in der Weise, daß die Spannelemente 7 unter Zwischenlegen der Stützelemente 13 in die Vertiefungen 15 in den Spannelementen 7 auf den Zapfen 1 gelegt werden und durch die Ringfedern 8 und 9 in radialer Richtung fixiert werden. Danach wird der Käfig 4 über den Zapfen 1 geschoben und dieser dann über die Führungsscheibe 11 mittels der Befestigungsschraube 12 am Zapfen 1 befestigt.The tensioning device is assembled in such a way that the
Claims (13)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT86103137T ATE36299T1 (en) | 1985-06-15 | 1986-03-08 | DEVICE FOR CLAMPING TUBULAR WINDING TUBE, PARTICULARLY OF PAPER WEB OR SIMILAR MATERIAL WEB-BEARING WINDING TUBE. |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8517584U | 1985-06-15 | ||
| DE19853521582 DE3521582A1 (en) | 1985-06-15 | 1985-06-15 | Device for clamping tubular wound cores, in particular wound cores bearing paper webs or similar material webs |
| DE3521582 | 1985-06-15 | ||
| DE8517584U DE8517584U1 (en) | 1985-06-15 | 1985-06-15 | Device for clamping tubular winding tubes, in particular winding tubes carrying paper webs or similar material webs |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0208832A1 EP0208832A1 (en) | 1987-01-21 |
| EP0208832B1 true EP0208832B1 (en) | 1988-08-10 |
Family
ID=25833174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP86103137A Expired EP0208832B1 (en) | 1985-06-15 | 1986-03-08 | Device for gripping winding tubes, especially winding tubes supporting paper webs or the like |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4730779A (en) |
| EP (1) | EP0208832B1 (en) |
| JP (1) | JPH078695B2 (en) |
| CA (1) | CA1271178A (en) |
| ES (1) | ES296715Y (en) |
| FI (1) | FI81320C (en) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3829704A1 (en) * | 1988-09-01 | 1990-03-15 | Jagenberg Ag | TENSIONING AND GUIDE DEVICE FOR WRAPPING SLEEVES |
| US5094346A (en) * | 1991-05-07 | 1992-03-10 | Minnesota Mining And Manufacturing Company | Reusable container for tape pancakes |
| US5165542A (en) * | 1991-05-07 | 1992-11-24 | Minnesota Mining And Manufacturing Company | Reusable container for tape pancakes |
| DE4122806A1 (en) * | 1991-07-10 | 1993-01-14 | Jagenberg Ag | Paper roll expanding clamp head changer - has grip with boss of smaller diameter than stub shaft accommodating head |
| US5303823A (en) * | 1992-07-17 | 1994-04-19 | Minnesota Mining And Manufacturing Company | Reusable, two-piece storage container |
| US5501351A (en) * | 1992-07-17 | 1996-03-26 | Minnesota Mining And Manufacturing Company | Reusable, multiple-piece storage container |
| US5284246A (en) * | 1992-07-17 | 1994-02-08 | Minnesota Mining And Manufacturing Company | Support for tape pancakes |
| US5622260A (en) * | 1992-07-17 | 1997-04-22 | Minnesota Mining And Manufacturing Company | Support for tape pancakes |
| US5346065A (en) * | 1993-02-11 | 1994-09-13 | Minnesota Mining And Manufacturing Company | Media shipping container |
| US5379648A (en) * | 1993-07-26 | 1995-01-10 | Sonoco Products Company | Method and apparatus for testing chew-out strength of paperboard core |
| FI100002B (en) * | 1994-06-23 | 1997-07-15 | Valmet Paper Machinery Inc | Tension head for roller sleeves |
| US6718624B1 (en) * | 1999-04-08 | 2004-04-13 | Schleuniger Holding Ag | Method for controlling a cable treating device |
| IT1313322B1 (en) * | 1999-10-04 | 2002-07-17 | Panzeri Alessandro Costruzioni | EXPANSION SPINDLE FOR COILS. |
| US6416014B2 (en) | 2000-01-29 | 2002-07-09 | Double E Company, Inc. | Expandable core plug |
| US20050224627A1 (en) * | 2004-04-09 | 2005-10-13 | Semion Stolyar | Double acting torque chuck |
| US20070278342A1 (en) * | 2006-05-31 | 2007-12-06 | 3M Innovative Properties Company | Reel assembly for winding web materials |
| CN108183002A (en) * | 2017-12-29 | 2018-06-19 | 重庆腾盛电线电缆有限公司 | A kind of fork winch distributor plate for being not easy to break |
| CN110759174A (en) * | 2019-11-08 | 2020-02-07 | 湖南盛世电线电缆有限公司 | Looping and coiling host of looping machine for wire production |
| US20210379785A1 (en) * | 2020-06-08 | 2021-12-09 | Gerber Technology Llc | Re-sealer for a multi-ply cutter |
| IT202000019849A1 (en) * | 2020-08-10 | 2022-02-10 | Renova S R L | SUPPORT SPINDLE FOR REELS OF ROLLING MATERIAL |
| US11807477B2 (en) * | 2020-12-03 | 2023-11-07 | Sonoco Development, Inc. | Chuck with improved torque transmission and centralization |
| US20230041506A1 (en) * | 2021-08-06 | 2023-02-09 | Reimund K. Brettschneider | Mechanical torque activated chuck with material preservation features |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2049170A (en) * | 1970-07-13 | 1972-03-30 | Ab Amala Gjuteri & Mekaniska Verkstad | An improved drive spindle |
| DE2100746A1 (en) * | 1971-01-08 | 1972-07-20 | Dr. Otto C. Strecker KG, 6102 Pfungstadt; Maschinenfabrik zum Bruderhaus GmbH, 7410 Reutlingen | Clamping body for clamping paper rolls |
| DE2211518C3 (en) * | 1972-03-10 | 1982-01-28 | Jagenberg-Werke AG, 4000 Düsseldorf | Device for clamping tubular winding cores |
| DE2308755C3 (en) * | 1973-02-22 | 1975-10-23 | Bruderhaus Maschinen Gmbh, 7410 Reutlingen | Sleeve clamping coupling for the shaftless mounting of hollow cylindrical rotating bodies |
| GB1543571A (en) * | 1975-05-01 | 1979-04-04 | Rendall I | Core chucks |
| DE2612375C2 (en) * | 1976-03-24 | 1983-04-14 | A. Ahlström Development GmbH, 7315 Weilheim | Clamping head for the core tubes of rolls made of paper, plastic films or the like |
| US4334652A (en) * | 1978-11-08 | 1982-06-15 | David Blackburn | Expandible devices for internally gripping cores or the like |
| DE2910114C2 (en) * | 1979-03-15 | 1983-04-21 | A. Ahlström Development GmbH, 7315 Weilheim | Clamping head for the core tubes of wraps made of paper, plastic films and the like. |
| DE2929934C2 (en) * | 1979-07-24 | 1982-02-11 | Jagenberg-Werke AG, 4000 Düsseldorf | Device for clamping tubular winding cores |
| DE3329330C2 (en) * | 1983-08-13 | 1986-10-02 | Jagenberg AG, 4000 Düsseldorf | Clamping device for winding cores |
-
1986
- 1986-03-08 EP EP86103137A patent/EP0208832B1/en not_active Expired
- 1986-04-10 FI FI861528A patent/FI81320C/en not_active IP Right Cessation
- 1986-06-09 CA CA000511120A patent/CA1271178A/en not_active Expired - Fee Related
- 1986-06-10 ES ES1986296715U patent/ES296715Y/en not_active Expired
- 1986-06-13 JP JP61136364A patent/JPH078695B2/en not_active Expired - Fee Related
- 1986-06-13 US US06/874,283 patent/US4730779A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FI861528A (en) | 1986-12-16 |
| FI81320B (en) | 1990-06-29 |
| EP0208832A1 (en) | 1987-01-21 |
| FI861528A0 (en) | 1986-04-10 |
| JPH078695B2 (en) | 1995-02-01 |
| FI81320C (en) | 1990-10-10 |
| ES296715Y (en) | 1988-05-16 |
| JPS61291351A (en) | 1986-12-22 |
| US4730779A (en) | 1988-03-15 |
| ES296715U (en) | 1987-12-16 |
| CA1271178A (en) | 1990-07-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0208832B1 (en) | Device for gripping winding tubes, especially winding tubes supporting paper webs or the like | |
| DE2452825C2 (en) | screw | |
| EP0663047B1 (en) | Tube system for tubular constructions | |
| DE3942432C1 (en) | Swivel joint coupling for vehicle drive shaft - includes rubber core with rigid sleeves through which fixing bolts pass | |
| DE1475390C3 (en) | Elastic shaft coupling | |
| DE2558880B2 (en) | Elastic shaft coupling | |
| DE1525213B2 (en) | RADIAL WIRE BALL BEARINGS | |
| EP0574833B1 (en) | Axially deformable bobbin | |
| DE3335899C2 (en) | ||
| DE2708538C3 (en) | Connection between the chain links of a crawler belt | |
| DE3038774A1 (en) | SCREW DRIVE WITH DOUBLE NUT | |
| EP1013944B1 (en) | Fastening element | |
| EP0211798A2 (en) | Anti-skid device for motor vehicles | |
| DE2257903B2 (en) | RING-SHAPED, ELASTIC ELEMENT FOR CONNECTING TWO COUPLING FLANGES | |
| DE4317579A1 (en) | Clamping connection between a sleeve and a shaft | |
| DE60026946T2 (en) | Means for pressing a shaft to a clevis of a steering device | |
| DE2740090A1 (en) | SELF-HOLDING MANUALLY OPERATED WINCH | |
| DE2842439C2 (en) | Wire drawing cone | |
| DE3626257C2 (en) | ||
| EP3293407B1 (en) | Shaft-to-collar connection | |
| DE202019106972U1 (en) | Frictional shaft-hub connection | |
| DE8517584U1 (en) | Device for clamping tubular winding tubes, in particular winding tubes carrying paper webs or similar material webs | |
| US6345929B1 (en) | Device for the anchorage of an axle | |
| DE3521582C2 (en) | ||
| AT92875B (en) | Wire spoke wheel. |
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 CH FR GB IT LI NL SE |
|
| 17P | Request for examination filed |
Effective date: 19870218 |
|
| 17Q | First examination report despatched |
Effective date: 19870922 |
|
| RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: JAGENBERG AKTIENGESELLSCHAFT |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT CH FR GB IT LI NL SE |
|
| REF | Corresponds to: |
Ref document number: 36299 Country of ref document: AT Date of ref document: 19880815 Kind code of ref document: T |
|
| ITF | It: translation for a ep patent filed |
Owner name: DE DOMINICIS & MAYER S.R.L. |
|
| ET | Fr: translation filed | ||
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) | ||
| 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 | ||
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19910218 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: 19910219 Year of fee payment: 6 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 19910226 Year of fee payment: 6 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 19910311 Year of fee payment: 6 |
|
| ITTA | It: last paid annual fee | ||
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 19910331 Year of fee payment: 6 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19920308 Ref country code: AT Effective date: 19920308 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19920309 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Effective date: 19920331 Ref country code: CH Effective date: 19920331 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Effective date: 19921001 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee | ||
| NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee | ||
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| EUG | Se: european patent has lapsed |
Ref document number: 86103137.5 Effective date: 19921005 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20030320 Year of fee payment: 18 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20041130 |
|
| 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: 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: 20050308 |