EP4177194A1 - Dispositif d'épandage - Google Patents

Dispositif d'épandage Download PDF

Info

Publication number
EP4177194A1
EP4177194A1 EP21206763.1A EP21206763A EP4177194A1 EP 4177194 A1 EP4177194 A1 EP 4177194A1 EP 21206763 A EP21206763 A EP 21206763A EP 4177194 A1 EP4177194 A1 EP 4177194A1
Authority
EP
European Patent Office
Prior art keywords
deflection
material web
spreading device
transport path
transport
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.)
Pending
Application number
EP21206763.1A
Other languages
German (de)
English (en)
Inventor
Hans-Peter Bauer
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.)
Goebel Schneid und Wickelsysteme GmbH
Original Assignee
Goebel Schneid und Wickelsysteme GmbH
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 Goebel Schneid und Wickelsysteme GmbH filed Critical Goebel Schneid und Wickelsysteme GmbH
Priority to EP21206763.1A priority Critical patent/EP4177194A1/fr
Priority to PCT/EP2022/080756 priority patent/WO2023079045A1/fr
Publication of EP4177194A1 publication Critical patent/EP4177194A1/fr
Pending legal-status Critical Current

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
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/032—Controlling transverse register of web
    • B65H23/035—Controlling transverse register of web by guide bars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/24—Registering, tensioning, smoothing or guiding webs longitudinally by fluid action, e.g. to retard the running web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/32—Arrangements for turning or reversing webs
    • 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
    • B65H2301/414—Winding
    • B65H2301/4148—Winding slitting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2401/00—Materials used for the handling apparatus or parts thereof; Properties thereof
    • B65H2401/20—Physical properties, e.g. lubricity
    • B65H2401/242—Porosity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/11—Means using fluid made only for exhausting gaseous medium producing fluidised bed
    • B65H2406/113—Details of the part distributing the air cushion
    • B65H2406/1131—Porous material

Definitions

  • the invention relates to a spreading device for a plurality of material web strips cut from a material web by a material web cutting device, the material web strips being fed along a transport path in a feed plane of the spreading device and leaving the spreading device in a discharge plane, in order to then be transported parallel to one another offset to a winding shaft device and on a common one winding shaft, wherein the spreading device has two deflection elements, each running transversely to the transport path, which are designed and arranged in such a way that a strip spacing between two material web strips that are guided adjacent to one another along a transport path in succession over the first and second deflection element in the discharge plane is greater than is in the feed plane.
  • Material web cutting devices are known, with which a plurality of material web strips arranged next to one another can be produced from a material web, which consists for example of a paper material or a plastic film, which are then each wound onto a winding shaft and kept ready for later use. It must be ensured that two adjacent and from the common material web strips are sufficiently separated from each other during and after winding, so that each individual wound material web strip roll can be separated from an adjacent material web strip roll, and that the material web strip rolls produced in this way can be stored independently of one another and supplied for subsequent use.
  • a spreading device is arranged, with which the material web strips transported next to one another along the transport path are spread apart before they are wound up in the winding shaft device.
  • Rotatably mounted spreader rollers with which the desired spreading of the material web strips is to be effected, often have a number of individual roller segments, via which the individual material web strips are deflected and thereby spread apart or separated from one another and the strip spacing between two adjacent material web strips is thereby increased.
  • each deflection element is arranged in a rotationally fixed manner and that each deflection element has a number of openings in a transport contact area of the deflection jacket surface covered by the material web strips transported over it, through which compressed air can be blown out in order to create a friction-reducing effect in the transport contact area Being able to generate an air layer between the strip of web material and the deflection jacket surfaces of the deflection elements.
  • a precisely defined geometry of the deflection jacket surfaces of the deflection elements that deflect the individual material web strips relative to the material web strips that are transported over them and thereby deflected can also be specified over a long period of use of the spreading device, without this geometry being caused by a conventionally known rotational movement of the Deflection elements or an insufficiently precise storage of the rotating deflection elements could be impaired. Due to the formation of an air layer between the transport contact areas of the deflection jacket surfaces of the deflection elements on the one hand and the material web strips transported over them on the other hand, friction between the
  • deflection jacket surfaces of the deflection elements are reduced as far as possible. Undesirable abrasion and wear of the deflection elements caused by friction can be reduced in such a way that there is no significant change in the shape of the deflection jacket surfaces over the intended service life of the spreading device, or a service life limited by abrasion or wear of the deflection elements can be significantly extended.
  • the friction-reducing air layer between the deflection jacket surfaces of the deflection elements and the material web strips that are transported across and thereby deflected along the deflection jacket surfaces also reduces unwanted transverse stresses and distortions of individual material web strips, so that after leaving the spreading device, a significantly reduced unwanted lateral offset of individual material web strips occurs.
  • a large number of openings are expediently provided within the transport contact areas in the deflection jacket surfaces of the deflection elements.
  • the individual openings can be arranged and formed so as to be distributed regularly or irregularly over the transport contact areas.
  • An air pressure of the compressed air supplied to each deflection element is expediently specified such that on the one hand a friction-reducing air layer is formed over the entire transport contact area of the deflection jacket surface, but on the other hand as much as possible small distance between the deflection jacket surface and the material web strips transported over it is produced in order not to impair a deflection and lateral displacement of the material web strips caused by the geometry of the deflection jacket surfaces.
  • Deflection jacket surfaces of the deflection elements are made of a porous and air-permeable material.
  • a suitable porous material can be produced, for example, from a powder or from granules by a sintering process. It is also conceivable that the porous material is produced by foaming a ceramic or a suitable plastic or metal material.
  • a jacket element or several jacket elements can be produced and provided from the porous and air-permeable material, with an outer side of the jacket element or of the several jacket elements forming the deflection jacket surface of the relevant deflection element.
  • At least the respective transport contact surface within the deflection jacket surfaces is made of the porous and air-permeable material if, depending on the arrangement and use of the deflection elements, the material web strips do not lie against the deflection element over the entire deflection jacket surface, but only in a partial area of the transport contact surface or are transported past it and thereby be redirected.
  • Deflection jacket surfaces or the transport contact surfaces are made of a perforated sheet metal or a perforated thin-walled layer of material. Methods are known from practice that can be used to introduce or form very small holes with a small opening diameter in a metal sheet or in a layer of material. For example, small holes can be made in a thin metal sheet or in a plastic layer with a high-energy laser. A large number of holes can be produced in a short time using a pulsed laser. Suitable laser drilling devices are known from practice. Instead of sheet metal, the deflection jacket surfaces or the transport contact surfaces of the deflection elements can also be made of another suitable material, such as plastic or a composite material made of several material layers arranged one above the other or next to one another.
  • the material should have a surface that is as smooth and low-friction as possible and produce as little abrasion as possible during operation, so that the deflection elements can be operated with little wear over a long period of use and the material web strips should travel at a high web speed over the deflection jacket surfaces or the transport contact surfaces can slide away.
  • the deflection jacket surfaces or the transport contact surfaces of the deflection elements have a number of holes with an opening diameter of less than 0.5 mm, preferably less than 0.2 mm. It has been shown that the highest possible number of particularly small holes over the entire transport contact area Deflection jacket surface particularly homogeneous and precisely controllable layer of air can be generated, with the help of which the friction of the material web strip guided away is particularly effectively reduced.
  • a cross-sectional area of the holes can be approximately circular or oval, elliptical or polygonal.
  • a desired shape and geometry of the deflection jacket surface for the deflection of the strip of material web can be produced either during the manufacture of the jacket elements or subsequently by shaping the individual jacket elements and can thus be specified extremely precisely. Due to the non-rotatable arrangement of the individual deflection elements, an arrangement and alignment of the deflection elements and thus also of the individual deflection jacket surfaces can then be specified extremely precisely in order to be able to effect the most ideal, distortion-free deflection of the individual material web strips by the spreading device.
  • the two deflection elements are arranged and designed in such a way that the feed plane and the discharge plane are offset parallel to one another.
  • an offset between the feed plane and the discharge plane of less than 20 centimeters is sufficient to be able to create a sufficient distance even with a large number of material web strips that have been separated from a common material web.
  • the deflection elements are expediently designed in such a way that the material web strips are transported between the two deflection elements at least approximately at a right angle relative to the infeed plane and the outfeed plane. Depending on the original width of the material web and the number of material web strips severed from this material web, a less pronounced deflection can also be sufficient and expedient.
  • the deflection elements are designed in the shape of a segment of a circle in a cross-sectional area running along the transport path. For a deflection of a strip of material web by approximately 90 degrees, only a correspondingly large segment of a deflection jacket surface designed, for example, in the shape of a circular arc is required, which extends over a circular arc angle of slightly more than 90 degrees. Since the deflection elements are arranged in a rotationally fixed manner, it is not necessary to form the deflection elements in the form of rollers. All that is required is the transport contact area provided for the deflection of the material web strip and the deflection jacket surfaces required for this.
  • the configuration in the form of a segment of a circle leads to a uniform deflection of the strip of material web over the transport contact area Umlenkmantel Structure away, and thereby to the most uniform possible loading of the strip of material web during transport through the spreading device.
  • the circular segment-shaped deflection elements can also be arranged in a space-saving manner within a larger system with which a material web can be unwound from a material web roll and separated into individual material web strips, in order to then rewind the individual material web strips onto material web strip rolls.
  • a deflection jacket surface curved in the shape of a circular arc a different shape, such as an oval or elliptical shape, can also be expedient.
  • a deflection jacket surface of each deflection element has a deflection curve along the transport path of a strip of material web and a spreading curve that extends across all strips of material web transversely to the transport path.
  • the spreading curvature can be constant across the transport path.
  • the deflection curvature predetermined along the transport path can also be constant and consistent for all material web strips. It is also conceivable that a separate deflection curvature is specified for each material web strip.
  • the deflection curvature can also differ from one another within a material web strip if this promotes a reliable spreading of the individual material web strips relative to one another and a subsequent unwanted lateral offset can be reduced.
  • the desired geometry and shape of the deflection jacket surface can be specified and produced very precisely, particularly when the deflection jacket surface is made from a porous and air-permeable material, by shaping the porous and air-permeable material.
  • the expanding curvature of a deflection element which extends over all material web strips, is formed by subsequent reshaping of a deflecting element blank that is initially not curved in an expanding direction.
  • a required or expedient spreading curvature is relatively small and a spreading curvature radius is often larger by orders of magnitude than an extension of the deflection element transversely to the transport path of the material web strips. It has been shown that, particularly in the case of deflection elements whose deflection jacket surface or transport contact surface is formed by a perforated metal sheet or a perforated layer of material, the desired expanding curvature can be generated and specified by subsequent forming of a deflection element blank.
  • the deflection element blank can initially be produced in a straight line in this direction, as a result of which its production can be carried out in a significantly simplified and cost-effective manner.
  • Forming methods are known from practice, with which even very large expansion radii of curvature can be precisely generated and specified for the formed deflection element.
  • the deflection jacket surfaces form an equally large looping path for the two deflection elements along the transport path for each material web strip.
  • the looping distance of each strip of material web is composed of the two looping angles that are specified by the transport path for a strip of material web along the two deflection jacket surfaces of the deflection elements.
  • Equally sized looping sections at least for adjacent or for all material web strips, promote uniform web tension along the transport path and thus also enable simple and reliable regulation of the web tension for transport of the material web strips along the transport path that is as uniform and reliable as possible.
  • FIG 1 a schematic representation of an exemplary configured spreading device 1 is shown.
  • the spreading device 1 has a first deflection element 2 and a second deflection element 3 .
  • a material web 5 that has already been separated into several material web strips 4 is fed to the spreading device 1 in a feed plane 6 .
  • the material web strips 4 are each deflected by the two deflection elements 2, 3 and leave the spreading device 1 in a discharge plane 7 offset parallel to the infeed plane 6.
  • the material web strips 4 are not only Deflecting elements 2, 3 deflected, but also spread apart relative to each other, so that in the discharge plane 7 a strip spacing 9 between adjacent material web strips 4 is greater than the strip spacing in the feed plane 6 before entering the spreading device 1.
  • Each of the two deflection elements 2, 3 extends transversely to the transport path over an entire width of the supplied material web 5, or over the entire width of the spread material web strips 4.
  • the deflection elements 2, 3 are in a direction along the transport path Cross-sectional area, as also in figure 3 is shown schematically, formed in the shape of a circular arc segment.
  • Each deflection element 2, 3 has a base body 10 and a jacket element 11 made of a porous and air-permeable material.
  • An outwardly directed outer surface of the jacket element 11 forms a deflection jacket surface 12 for the material web strips 4 transported over the deflection element 2, 3, which within a transport contact area 13 of the deflection jacket surface 12 rest on the deflection jacket surface 12 separated only by a narrow air cushion and are thereby deflected.
  • the transport contact area 13 or transport contact surface is that area of the deflection jacket surface 12 against which the material web strips 4 rest during transport along the transport path.
  • the transport contact area 13 can match the deflection jacket surface 12 or be a partial area of the deflection jacket surface 12 .
  • the jacket element 11 is fixed to the base body 10 of the deflection element 2 , 3 in such a way that an interior space 14 is formed between the jacket element 11 and the base body 10 .
  • Compressed air can be fed into the interior 14, which is then blown through the large number of individual openings 15 through the porous material of the casing element 11 and escapes.
  • a friction-reducing air layer is formed in the transport contact area 13 between the deflection jacket surface 12 and the strip of material web 4 transported over it.
  • the deflection jacket surface 12 formed by the jacket element 11 of the deflection element 2, 3 has a transverse to the transport path spreading curvature extending across all material web strips 4, which at an in figure 2 shown plan view of a deflection element 2, 3 as an outer contour 16 of the casing element 11 can be seen.
  • the spreading curvature is constant over the entire extent of the deflection element 2, 3 transversely to the transport path. In practice, a radius of curvature of many meters is often sufficient and the spreading curvature in the figure according to figure 2 clearly exaggerated for illustrative purposes only.
  • the deflection element 2, 3 has a jacket element 11 made of a porous material and designed in the shape of a segment of a circular arc, which is placed on the base body 10.
  • the shape of the base body 10 is specified in the areas adjoining the jacket element 11 such that a continuous and approximately stepless and seamless course of the surface is formed at the transition from the base body 10 to the deflection jacket surface 12 formed by the jacket element 11.
  • a plurality of funnel-shaped interior spaces 14 are formed in the base body 10 adjacent to the casing element 11 and almost completely cover a contact surface 17 of the casing element 11 facing the base body 10 .
  • Compressed air can be blown into the jacket element 11 over a large area through these inner spaces 14, which, after exiting through the porous material of the jacket element 11, forms a friction-reducing air layer for the material web strips 4 sliding over it.
  • the Compressed air can be supplied, for example, via compressed air lines 18 fitted and pressed into compressed air channels 19 formed in the base body 10 .
  • the deflection element 2, 3 has a perforated plate 20 that is curved along a quadrant along the transport path.
  • the perforated sheet metal 20 is made from a thin metal sheet into which a large number of holes 21 arranged at a distance from one another were subsequently introduced using a laser drilling device.
  • An opening diameter of the holes 21 is preferably significantly smaller than 0.5 mm.
  • the perforated plate 20 is connected to the base body 10 along a peripheral edge 22 . A transition from the base body 10 to the perforated plate 20 is specified with as little friction as possible.
  • the base body 10 can have a shape, for example, as shown in an example in figure 5 is only indicated schematically. It is also possible for the base body 10 to have a tubular shape with a slot running in the longitudinal direction, into which the perforated plate 20 is fitted.
  • the deflection element 2, 3 shown is produced from a rectilinear forming blank by forming that produces the expansion curvature.
  • the Umformrohling is first in a longitudinal direction of the deflection element 2, 3, which is perpendicular to one in the Figures 3 to 5 shown cross-sectional area of the deflection element 2, 3 runs, produced in a straight line, which in view can be effected on the base body 10, for example, by extrusion or by a suitable cost-effective forming process.
  • the deflection element blank which is initially produced in a straight line, can then be deformed and provided with the required expanding curvature by means of a suitably carried out forming step. This forming step can also be carried out very precisely and at the same time inexpensively, so that the deflection element 2, 3 can be produced in a particularly advantageous manner from an economic point of view.

Landscapes

  • Advancing Webs (AREA)
EP21206763.1A 2021-11-05 2021-11-05 Dispositif d'épandage Pending EP4177194A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP21206763.1A EP4177194A1 (fr) 2021-11-05 2021-11-05 Dispositif d'épandage
PCT/EP2022/080756 WO2023079045A1 (fr) 2021-11-05 2022-11-03 Dispositif écarteur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21206763.1A EP4177194A1 (fr) 2021-11-05 2021-11-05 Dispositif d'épandage

Publications (1)

Publication Number Publication Date
EP4177194A1 true EP4177194A1 (fr) 2023-05-10

Family

ID=78536071

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21206763.1A Pending EP4177194A1 (fr) 2021-11-05 2021-11-05 Dispositif d'épandage

Country Status (2)

Country Link
EP (1) EP4177194A1 (fr)
WO (1) WO2023079045A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4176775A (en) * 1977-03-28 1979-12-04 Beloit Corporation Inhibiting noise in sheet spreaders
GB2070570A (en) * 1980-01-17 1981-09-09 Beloit Corp Silencing of webs running over fixed guide bars
DE8717253U1 (de) * 1987-01-15 1988-06-23 Benz & Hilgers GmbH, 40470 Düsseldorf Vorrichtung zum Umlenken und seitlichen Auslenken verschiedener, aus einer Materialbahn, beispielsweise einer Papierbahn, durch Längsschnitt erzeugter Streifen
FR2735117A1 (fr) * 1995-06-07 1996-12-13 Komori Chambon Dispositif separateur notamment pour nappe de papier ou de carton

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2026355B1 (de) * 1970-05-29 1971-11-18 Roland Offsetmaschinenfabrik Faber & Schleicher Ag, 6050 Offenbach Wendestange zum Umlenken von Papierbahnen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4176775A (en) * 1977-03-28 1979-12-04 Beloit Corporation Inhibiting noise in sheet spreaders
GB2070570A (en) * 1980-01-17 1981-09-09 Beloit Corp Silencing of webs running over fixed guide bars
DE8717253U1 (de) * 1987-01-15 1988-06-23 Benz & Hilgers GmbH, 40470 Düsseldorf Vorrichtung zum Umlenken und seitlichen Auslenken verschiedener, aus einer Materialbahn, beispielsweise einer Papierbahn, durch Längsschnitt erzeugter Streifen
FR2735117A1 (fr) * 1995-06-07 1996-12-13 Komori Chambon Dispositif separateur notamment pour nappe de papier ou de carton

Also Published As

Publication number Publication date
WO2023079045A1 (fr) 2023-05-11

Similar Documents

Publication Publication Date Title
DE20309429U1 (de) Abzugsvorrichtung einer Schlauchfolienextrusionsanlage
DE69821414T2 (de) Schneid- und Rillmaschine mit einer Vorrichtung zum Längsschneiden
EP2098381B1 (fr) Procédé et dispositif destinés à imprégner des pièces à usiner
EP0203328B1 (fr) Dispositif de déplacement des lames inférieures
EP2269931B1 (fr) Dispositif d'écartement d'une bande de film
DE2848295C2 (de) Kalander zur Herstellung von thermoplastischer Folien
DE102015012228A1 (de) Vorrichtung zum Nuten von Materialbogen
DE102018104553A1 (de) Bahnleitvorrichtung
EP2497582B1 (fr) Dispositif de laminage pour la déformation d'un matériau métallique en forme de bande
EP4177194A1 (fr) Dispositif d'épandage
EP0944545A1 (fr) Dispositif pour la repartition d'un flux de cahiers
EP2781653B1 (fr) Dispositif et procédé de fabrication de bandes de papier décoratif enduites et utilisation d'un tel dispositif
DE102004001758B4 (de) Vorrichtung zum Schneiden von bahnartigem Material sowie Verfahren zur Erzeugung von Querschnitten in einem bahnartigen Material
DE102010044203B4 (de) Verfahren zum Längsschneiden einer Faserbahn
EP1356887B1 (fr) Dispositif pour sectionner une ébauche en forme de bande ayant des lignes d'affaiblissement
EP1792858B1 (fr) Dispositif d'enroulement d'une bande
DE20220537U1 (de) Vorrichtung zum Aufwickeln einer Materialbahn
DE10218575A1 (de) Trennvorrichtung für bandförmiges Halbzeug mit Sollbruchstellen
DE19720174B4 (de) Kalander
DE102009022248B4 (de) Entwölbungsvorrichtung zur Entwölbung einer Materialbahn, insbesondere in einer Anlage der papierverarbeitenden Industrie
DE4235226C1 (de) Bahnleitwalze
DE3744107A1 (de) Einrichtung zur herstellung von querlinien an materialbahnen
DE202005003440U1 (de) Vorschubrichteinrichtung
EP1077192B1 (fr) Méthode pour enrouler une bande en mouvement
EP4046799A1 (fr) Nez de l'entonnoir et entonnoir de pliage

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

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20231103

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20240125

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Free format text: PREVIOUS MAIN CLASS: B65H0023035000

Ipc: B65H0023240000

RIC1 Information provided on ipc code assigned before grant

Ipc: B65H 23/035 20060101ALI20240729BHEP

Ipc: B65H 23/32 20060101ALI20240729BHEP

Ipc: B65H 23/24 20060101AFI20240729BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED