EP2734672B1 - Habillage sans fin abouté - Google Patents

Habillage sans fin abouté Download PDF

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Publication number
EP2734672B1
EP2734672B1 EP12761888.2A EP12761888A EP2734672B1 EP 2734672 B1 EP2734672 B1 EP 2734672B1 EP 12761888 A EP12761888 A EP 12761888A EP 2734672 B1 EP2734672 B1 EP 2734672B1
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EP
European Patent Office
Prior art keywords
film
clothing
foil
shaped
joint
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.)
Not-in-force
Application number
EP12761888.2A
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German (de)
English (en)
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EP2734672A1 (fr
Inventor
Michael Straub
Matthias Hoehsl
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.)
Voith Patent GmbH
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Voith Patent GmbH
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Filing date
Publication date
Application filed by Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP2734672A1 publication Critical patent/EP2734672A1/fr
Application granted granted Critical
Publication of EP2734672B1 publication Critical patent/EP2734672B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/0027—Screen-cloths
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/0027—Screen-cloths
    • D21F1/0036—Multi-layer screen-cloths
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/0027—Screen-cloths
    • D21F1/0054—Seams thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/08—Felts
    • D21F7/10—Seams thereof

Definitions

  • the present invention relates to fabrics for paper machines and more particularly relates to non-woven fabrics and their manufacture.
  • Paper machines are used to produce nonwoven webs such as papers of various types, cartons, cardboard and similar nonwovens.
  • the term "paper” is used herein to represent these types of nonwoven fibrous webs.
  • the production of a nonwoven web begins in the Formierpartie a paper machine with the application of a pulp suspension on a fabric or with the introduction of a pulp suspension in the gap formed between two fabrics.
  • Coverings are usually carried out in the form of endless belts, which are deflected via rollers and in each case circulate within a specific section or section of the paper machine.
  • the paper-side surface of the fabric carries the pulp suspension or the resultant by dewatering pulp or nonwoven web.
  • the guided over the rollers surface of the fabric is hereinafter referred to as the running side, which provided for the transport of the pulp suspension or web paper-side surface as a useful side.
  • the coverings have passages through which water can be sucked from the paper-side surface to the running side.
  • the fabrics currently used as forming fabrics in the forming section of paper machines consist of woven material.
  • Woven fabrics have regular structures with a repeating basic pattern.
  • the forming fabrics are usually constructed of several layers of different thread thickness and yarn guide. Due to their different weave structure, the individual layers of such fabrics not only differ from each other in permeability to water, but lead, as formed in the paper-side layers openings or passages regularly covered by yarns underlying Weblagen, even to laterally varying permeabilities of the forming fabric and thus to a locally varying rate of dewatering of the fibrous web.
  • the result is visible markings of the paper web with a regular pattern following the weave pattern.
  • lateral permeability fluctuations can impair the quality of the paper web to be produced.
  • Woven fabrics also have a low flexural rigidity and therefore often tend to wrinkle during circulation in paper machines.
  • the use of monofilaments of different materials such.
  • PET polyethylene terephthalate
  • PA polyamide
  • strings can not be woven as an endless belt, the two ends of a finite length of woven tape must be joined together to form an endless belt.
  • the connection is made via a complicated woven seam structure in which the ends of mutually associated ends of warp and weft yarns at the connection point of the webbing are offset from each other according to a certain pattern. This connection technique is very complex and is reflected in correspondingly high production costs for woven endless coverings.
  • a fabric is specified, which is formed by a laminate of several layers of non-woven water-impermeable materials. For dewatering, openings are made in the laminate. The connection of the individual layers of the laminate is made flat by z. As ultrasonic welding, high frequency welding, thermal welding, bonding or chemical pretreatment of the layers. The drainage holes are made in the laminate, preferably by laser drilling brought in.
  • the splice seam of one layer can be arranged offset to those of other layers, wherein the splice seams can also be arranged at an angle to the direction of the endless belt, in order to avoid noticeable thickening of the fabric.
  • producing such film laminates in the dimensions required for forming fabrics is associated with great expense.
  • such multilayer film laminates are relatively stiff and tend to delaminate under the conditions prevailing in the forming section of a paper machine.
  • polymer tapes are used to produce coverings for paper machines, they must be stretched in the running direction of the fabric. Otherwise, the clothing is irreversibly stretched under the tensile stresses prevailing during operation and thus unusable after a short time.
  • unidirectionally stretched polymer tapes are not available in the widths customary for fabrics used on industrial scale paper machines. For the production of a covering, therefore, several polymer tapes have to be laterally connected to each other.
  • the ends of the band must be joined together. At the joints or joints, the material is not stretched, whereby the fabric has a correspondingly lower mechanical stability at these points.
  • laid polymer tape is very complex because it requires a special welding device in which either the welding apparatus with high precision along the welding line must be performed several times around the fabric around, or the fabric must be moved with the circumferential weld line relative to the welding apparatus.
  • the edges of the fabric must be trimmed after the welding process to obtain a uniform width stringing.
  • the weld meets at an acute angle to one of the side edges of the fabric, which is due to the opposite to the polymer tape structurally weaker weld a point of attack for tearing of the fabric is given.
  • the EP1378602 further discloses a press felt constructed from a base fabric and a nonwoven structure.
  • the press felt according to this document is constructed of a plurality of juxtaposed endless fabric tapes, each having a smaller width than the finished press felt and are joined together along their longitudinal edges. The joints where the fabric tapes are made endless, are arranged offset in the press felt in the direction of rotation to each other.
  • the document WO 2012/123439 A2 falls under Article 54 (3) EPC and shows a covering for a paper machine with several endless belts. On the basis of the above it is therefore desirable to specify a covering for paper machines, which is designed in the form of a film, has a high mechanical stability and tensile strength, is sufficiently wide for use in industrially used paper machines, and can be produced by conventional means.
  • Embodiments of such fabrics for a paper machine have two or more endless belts, each of which is formed along a joint to an endlessly closed in the circumferential direction of the string foil-shaped web, wherein the endless belts are connected to each other at the side edges, that the joints of two interconnected Endless belts with respect to the direction of rotation of the fabric are offset from one another.
  • the joint of a film-shaped web has deviating properties from the remaining web material, resulting in a lower tensile strength and higher Manifest extensibility of the joint.
  • a tensile force acting on the clothing in the region of the joint of one of the endless belts is absorbed by the adjacently arranged unapplied film material of an adjacent endless belt and thus effectively prevents an overloading and stretching of the joint.
  • the film-shaped webs are formed from a unidirectionally stretched in the circumferential direction of the fabric polymer, whereby a high dimensional stability of the fabric is achieved in the intended use.
  • the film-shaped webs are formed in embodiments of the covering on the basis of a material comprising polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyphenylene sulfide (PPS), polyetheretherketones (PEEK), polyamide (PA) or polyolefins.
  • PET polyethylene terephthalate
  • PEN polyethylene naphthalate
  • PPS polyphenylene sulfide
  • PEEK polyetheretherketones
  • PA polyamide
  • the thickness of the film-shaped webs in embodiments is further preferably selected from the range of 300 to 1600 ⁇ m, and more preferably from the range of 500 to 800 ⁇ m.
  • the film-shaped webs are formed from an unstretched polymer and are provided to provide the tensile strength of the fabric in the direction of travel of the fabric extending filaments, in particular spirally wound threads.
  • the film-shaped webs are connected at least partially cohesively at the joints in order to open the joint z. B. to avoid the formation of a gap during use of the fabric.
  • a cohesive connection is understood to mean a holding together of the connection partners by atomic or molecular forces.
  • the endless belts are integrally bonded together to provide a seamless transition between the adjacent endless belts.
  • the active surfaces of a joint and / or a lateral connection point are arranged in a staircase, so that a part of the connection surface of the tensile forces occurring does not penetrate vertically and so the dimensional stability of the connection point is increased.
  • the adjoining surfaces at the connection point are designated.
  • at least one active surface of a joint and / or a lateral connection point is arranged as an inclined surface with respect to the surfaces of the clothing.
  • At least one joint extends along a line running obliquely with respect to the direction of rotation, in particular straight lines.
  • An oblique course of the joint relative to the direction of rotation should be understood to mean that the joint extends at least in sections, in particular along its entire extension, not parallel to the transverse direction of the clothing.
  • the length of the joint can be made larger than the width of the film-shaped web, whereby the tensile force acting on the joint is distributed over a longer distance.
  • the durability of the joint can be improved.
  • Another advantage in the oblique course of the joint is that in a Nip pengang the fabric not the entire joint goes through the nip at the same time, but in each case only a small bleed. As a result, possibly caused by the joint marks are reduced, as well as the running of the fabric in the machine is quieter.
  • the covering comprises a plurality of superimposed and flat interconnected sheet-like webs.
  • the joints of film-shaped webs arranged one above another extend obliquely to the direction of rotation and enclose different angles with the direction of rotation.
  • FIG. 1 shows a schematic representation of a fabric 1 for use in papermaking machines.
  • the width of the fabric 1 is limited by the side edges 2 and 3.
  • the two side edges are self-contained and arranged substantially parallel to each other.
  • the fabric 1 is therefore also referred to as endless clothing.
  • the direction in which the endless covering 1 is closed in itself is referred to below as the running direction LR or circumferential direction LR of the covering 1 and is illustrated in FIG. 1 by means of a curved double arrow.
  • the direction along the shortest connection between the two side edges 2 and 3 is referred to as the transverse direction QR and is in FIG. 1 also indicated by a double arrow graphically.
  • the fabric 1 has a useful surface 5, which serves to transport the pulp suspension or web during papermaking, and is also referred to as the paper-side surface 5 of the fabric 1.
  • the useful surface 5 of the fabric 1 usually forms the outwardly directed surface of the fabric 1.
  • the volume enclosed by the covering 1 volume, inwardly directed surface is referred to in this document as the running side 6. It is usually on the (not shown in the figures) rollers, which cause the circulation of the fabric 1.
  • the directions pointing from the running side to the paper-side surface of the clothing 1 are referred to below as the vertical direction of the clothing 1.
  • the promotion of pulp suspension or fibrous web on the fabric 1 takes place on the effective surface 5 in the direction indicated by an arrow machine direction MR.
  • FIG. 2 illustrates the structure of a as in FIG. 1 shown endless cover 1 of several sheet-shaped webs.
  • the covering 1 is constructed from three film-shaped webs 10, 20 and 30 arranged side by side in the transverse direction QR.
  • the number of film-like webs used or required for the construction of a clothing 1 is determined by the width of the clothing 1, ie its extension in the transverse direction QR, and the width of the film-shaped webs available for its production.
  • the number of film webs arranged side by side to produce a covering 1 may differ from that in FIG FIG. 2 shown embodiment only two, but also more than three be.
  • not all film webs must be the same width.
  • 1 different widths of film webs can be joined together to form a fabric, for example, so that the outer film webs 10 and 30 are shortened in the transverse direction QR to obtain a certain predetermined width of the fabric 1. If the tension applied in the intended application of the covering 1 varies along its transverse direction QR, the width of the individual film-shaped webs 10, 20 or 30 can be optimized for the local tensile load, for example by selecting a smaller width of the film-shaped web at higher tensile load becomes.
  • the individual film-shaped webs 10, 20 and 30 are constructed monolithically, which is to be understood in this document that the webs apart from a possible surface coating consist of one piece, so in particular are not constructed in multiple layers.
  • the film webs 10, 20 and 30 may be perforated depending on the application, d. H. they have vertically penetrating holes, for example for dewatering the fibrous web.
  • Each of the film webs used to produce a covering 1 has, as in the representations a) and b) of FIG. 3 is shown, two its extension in the transverse direction QR limiting side edges.
  • the side edges 12 and 13 in the representation in b) of FIG. 3
  • the film webs 10 and 20 shown, the side edges 12 and 13 or 22 and 23.
  • the side edges of the film-shaped webs 10, 20 and 30 as in the Figures 2 and 3a ) illustrates formed in a straight line.
  • the side edges 13 and 22 to be joined may also run along a two-dimensional line, for example along a serpentine line or a wavy line.
  • each of the individual film-shaped webs 10, 20 and 30 is preferably first joined along a joint 11, 21 and 31 to form an endless belt.
  • the schematic representation of FIG. 4 shows a joined at a joint 11 to an endless belt sheet-shaped web 10.
  • the joint 11 connects the two end edges of the film-shaped Bahn 10.
  • Under front edges here are a film-shaped web 10 between the side edges 12 and 13 limiting edges to understand that limit its longitudinal extent and thus form the ends of the web.
  • the end edges can be arranged as shown in the figures perpendicular to the course of the side edges. However, they can also be aligned obliquely to this and instead of a straight course also have a curved curve.
  • the joining of the ends of a film web 10 can be done using different joining techniques such as gluing, calendering and in particular welding.
  • an ultrasonic welding process or a transmission laser welding process can be used for welding the two web ends.
  • the contacting surfaces of the two ends of the track by using a NIR laser are melted (laser having an emission wavelength in the n Ahen I nfra ot Scheme r) and pressed together. Since the material of the film strips 10, 20, 30 does not absorb the light of an NIR laser, the surfaces to be melted must first be provided with an absorber coating, wherein it is usually sufficient only one of two contact surfaces at the joint with the NIR Laser light absorbing material to coat.
  • the absorber coating absorbs, heats up the light of the NIR laser used for welding, and subsequently melts the surface regions of the tail ends adjacent thereto. By pressing together the melted areas, a cohesive connection is finally made.
  • lasers for NIR transmission welding are, for example, diode lasers with emission wavelengths in the range of 808 to 980 nm and Nd: YAG laser with an emission wavelength of 1064 nm.
  • lasers with emissions in the range of 940 to 1064 nm are used.
  • FIG. 5 illustrates two examples of a butt joint joining the two abutting edges 14 and 15 of a film-shaped web 10, the cross-sectional representations illustrate the oppositely disposed end faces 14 and 15 respectively in the unfastened (left) and joined (right) state.
  • an absorber layer 9 Before having one of the two end faces can be provided with an absorber layer 9, as shown, which absorbs the welding light used and thereby causes the melting of the two end faces.
  • both end faces 14 and 15 may be coated with an absorber material.
  • the end faces 14 and 15 are arranged perpendicular to the two surfaces of the film-shaped web 10.
  • the irradiation of the welding light is in this case preferably oblique to the adjacent end faces 14 and 15 and thus obliquely to the two surfaces of the film-shaped web 10.
  • the two end faces are preferably as in Presentation b) of FIG. 5 is shown, obliquely to the surface and thus also arranged obliquely to the irradiation direction of the light.
  • the joint 11 has a larger area, whereby the tensile load per unit area is reduced when tensioning the film-shaped web 10.
  • the surface of the joint 11 can be further increased and their elongation under tensile load can be further reduced.
  • an absorber layer 9 can be used to absorb the welding light again.
  • the step length is preferably a multiple of the film thickness. Step lengths in the range of 5 to 150 mm are advantageous, with step lengths of about 20 mm being preferred. Multiple levels are also possible. Notwithstanding the in FIG.
  • the steps of the profile may also be inclined, whereby a good illumination of the end faces 14 is achieved with the welding light directed perpendicular to the surface of the film-shaped web 10.
  • the angle between the inclined ramps and the intermediate plateau of such grading preferably has a value in the range of 45 to 60 degrees, with an angle of 60 degrees being preferred.
  • the joint surfaces to be joined 14 and 15 of the film web 10 are prepared in the form of a complementarily shaped tongue and groove profile, groove and spring are preferably performed as shown with a slight taper to allow easy telescoping.
  • This profile shape is characterized in particular by a great security against unwanted vertical offset of the two web ends when connecting.
  • the spring length or groove depth can exceed the film thickness.
  • an absorption layer 9 can also be applied to one or both abutment surfaces 14 and 15 in this profile design in order to facilitate the bonding of the surface substrate ends by locally concentrated absorption of the welding light. If the abutting surfaces 14 and 15 of the film web ends are joined together by means of ultrasonic welding, no absorber coating 9 is required.
  • the individual film strips are preferably made of a polymer that is transparent to the wavelengths of light used for welding.
  • film-shaped webs are therefore advantageous z. B. produced by extrusion or casting sheet-like thermoplastic substrates such as polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyphenylene sulfide (PPS), polyetheretherketones (PEEK), polyamide (PA), polyolefins and polyimides (PI) used.
  • PET polyethylene terephthalate
  • PEN polyethylene naphthalate
  • PPS polyphenylene sulfide
  • PEEK polyetheretherketones
  • PA polyamide
  • PI polyolefins and polyimides
  • Film web thicknesses from the range of 150 to 1600 ⁇ m and in particular from the range of 500 to 800 ⁇ m are used for the production of clothing 1 for paper machines.
  • the material structure within the joining zone 11 z. B. disturbed by recrystallization, whereby the joining zone is mechanically and chemically less resilient and thus may result in the intended use undesirable ripples and distortions at the joining zone 11.
  • the joining zones 11, 21 and 31 of the individual endless belts 10, 20 and 30, etc. therefore, as in FIG. 2 illustrated with respect to the direction of rotation LR of the fabric arranged offset relative to each other.
  • This staggered arrangement relieves the individual joints by the on the covering 1 acting tensile forces in the amount of joints of the undisturbed film material of the adjacent adjacent tracks are added. An elongation of the joints is so effectively prevented, so that the continuous covering in normal operation no ripples or warping is formed.
  • the transverse to the direction of rotation LR acting on a fabric tension forces 1 are substantially less than the longitudinal thereto, so that in normal operation, no expansion of the joints between the individual endless belts 10, 20 and 30 occurs.
  • the connection of adjacent endless belts can be done by joining the front edges of the film-shaped webs by means of ultrasonic welding or transmission laser welding.
  • the connection of two side edges 13, 14 can be done analogously to the end edges of a film web abutting or using a profiling of the side edges forming edge surfaces.
  • FIG. 8 shows an arrangement for the surface transmission laser welding of the two endless belts 10 and 20 at their side edges.
  • the adjoining edge surfaces are chamfered, so that the perpendicular to the surfaces of the endless belts 10 and 20 irradiated NIR laser light 61 impinges laterally on the edge surfaces.
  • At least one of the two edge surfaces is provided with an absorber coating.
  • the fan-shaped light beam 61 emitted by a laser 60 is linearly converged onto the connecting surface 50 via a roller 63 transparent to the wavelength used by the film material of the endless belts 10 and 20 that is transparent to the laser light.
  • the laser energy concentrated in this way is absorbed at the connection surface 50 in the region of the line 62 and converted into thermal energy.
  • the transparent roller 63 presses with a predetermined force on the surfaces of the endless film webs 10 and 20, so that the two webs are pressed together in the area around the line-shaped melting zone 62.
  • the connecting surface 50 in the formed between two rollers 64 and 65 nip so passed through that abutting the connecting surface 50 edge surfaces of the film-shaped webs 10 and 20 are pressed together.
  • the connecting surface 50 passes through the nip in the transverse direction QR for reasons of clarity.
  • the rollers 64 and 65 are like the transparent roller of FIG. 8 arranged so that the connecting surface 50 is guided in the direction LR by the nip between the rollers 64 and 65.
  • the laser source 60 irradiates the portion of the bonding surface 50 located in the nip over its entire extent in the transverse direction QR.
  • a covering 1 joined according to the above embodiments from a plurality of film-shaped webs can be manufactured using conventional joining techniques in any widths and thus adapted to the requirement of a respective paper machine.
  • a fabricated as described above fabric 1 has a high mechanical stability and tensile strength and does not tend in normal operation to the formation of ripples or warping.
  • FIG. 10 shows a film-shaped web 10 with a running obliquely to the direction of rotation LR joint 11. This means that the joint is not parallel to the transverse direction QR of the film-shaped web 10 extends.

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Claims (10)

  1. Habillage pour une machine à papier avec deux ou plusieurs bandes sans fin, qui sont formées chacune le long d'un point de jonction (11, 21, 31) en une bande en forme de feuille (10, 20, 30) fermée sans fin dans la direction de défilement de l'habillage (1), dans lequel le point de jonction respectif (11, 21, 31) relie les deux côtés frontaux de la bande en forme de feuille respective (10, 20, 30) et les côtés frontaux sont les côtés limitant une bande en forme de feuille (10, 20, 30) entre ses côtés latéraux, qui limitent la bande en forme de feuille (10, 20, 30) dans son extension longitudinale et forment ainsi les extrémités de la bande, dans lequel les bandes en forme de feuille (10, 20, 30) sont des substrats plats à structure monolithique et produits par extrusion ou coulée en matière plastique thermoplastique avec une épaisseur comprise dans la plage de 150 à 1600 µm et qui sont assemblés l'un à l'autre au moins partiellement par continuité de matière aux points de jonction (11, 21, 31), de telle manière qu'une ouverture du point de jonction respectif pendant une utilisation de l'habillage soit évitée, dans lequel les bandes sans fin sont reliées l'une à l'autre sur les côtés latéraux (12, 13, 22, 23) de telle manière que les points de jonction (11, 21, 31) de deux bandes sans fin reliées l'une à l'autre soient disposés de façon décalée l'un par rapport à l'autre par rapport à la direction de défilement de l'habillage (1), dans lequel les faces actives d'un point de jonction (11, 21, 31) et/ou d'un point de jonction latéral (50) reliant l'un à l'autre des côtés latéraux (12, 13, 22, 23) sont profilées.
  2. Habillage selon la revendication 1, dans lequel les bandes en forme de feuille (10, 20, 30) sont formées en un polymère étiré de façon unidirectionnelle dans la direction de défilement de l'habillage (1).
  3. Habillage selon la revendication 1, dans lequel les bandes en forme de feuille (10, 20, 30) sont formées en un polymère non étiré et il est prévu, pour procurer la résistance à la traction de l'habillage, des fils, en particulier des fils enroulés en spirale, s'étendant dans la direction de défilement de l'habillage.
  4. Habillage selon l'une quelconque des revendications précédentes, dans lequel les bandes en forme de feuille (10, 20, 30) sont formées à base d'un matériau, qui est choisi parmi le téréphtalate de polyéthylène (PET), le naphtalate de polyéthylène (PEN), le sulfure de polyphénylène (PPS), le polyétheréthercétone (PEEK), le polyamide (PA) ou des polyoléfines.
  5. Habillage selon l'une quelconque des revendications précédentes, dans lequel l'épaisseur des bandes en forme de feuille (10, 20, 30) est choisie dans la plage de 500 à 800 µm.
  6. Habillage selon l'une quelconque des revendications précédentes, dans lequel les bandes sans fin sont assemblées l'une à l'autre au moins en partie par continuité de matière.
  7. Habillage selon l'une quelconque des revendications précédentes, dans lequel des faces actives d'un point de jonction (11, 21, 31) et/ou d'un point de jonction latéral (50) sont disposées sous forme étagée.
  8. Habillage selon l'une quelconque des revendications précédentes, dans lequel au moins un point de jonction s'étend le long d'une ligne, en particulier d'une droite, tracée en diagonale par rapport à la direction de défilement.
  9. Habillage selon l'une quelconque des revendications précédentes, dans lequel l'habillage comprend plusieurs bandes en forme de feuille disposées l'une au-dessus de l'autre et assemblées à plat l'une à l'autre.
  10. Habillage selon la revendication 9, dans lequel les points de jonction de bandes en forme de feuille disposées l'une au-dessus de l'autre s'étendent en diagonale par rapport à la direction de défilement et forment avec celle-ci des angles différents.
EP12761888.2A 2011-07-21 2012-07-20 Habillage sans fin abouté Not-in-force EP2734672B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110079517 DE102011079517A1 (de) 2011-07-21 2011-07-21 Gefügte Endlosbespannung
PCT/EP2012/003352 WO2013010678A1 (fr) 2011-07-20 2012-07-20 Habillage sans fin abouté

Publications (2)

Publication Number Publication Date
EP2734672A1 EP2734672A1 (fr) 2014-05-28
EP2734672B1 true EP2734672B1 (fr) 2017-12-13

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EP12761888.2A Not-in-force EP2734672B1 (fr) 2011-07-21 2012-07-20 Habillage sans fin abouté

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US (1) US9169598B2 (fr)
EP (1) EP2734672B1 (fr)
CN (1) CN204151608U (fr)
DE (1) DE102011079517A1 (fr)
WO (1) WO2013010678A1 (fr)

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DE102020105480A1 (de) * 2020-03-02 2021-04-01 Voith Patent Gmbh Naht für eine perforierte Kunststofffolie

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DE102013201579A1 (de) * 2013-01-31 2014-07-31 Ingenieurbüro Gummi- Und Kunststofftechnik Di Martina Fritz Förder- und/oder Antriebsband aus dem Kunststoff Polypropylen (PP) und Polypropylen mit Compounds (PP-C) versetzt, ohne Gewebezugträger mit einer mechanische Belastungen wie Zug-, Biege- und Scherkräfte übertragenden gestuften Stoßverbindung und Verfahren zur Herstellung der gestuften Stoßverbindung
EP3481993A4 (fr) * 2016-08-04 2020-03-04 AstenJohnson, Inc. Élément renforcé pour textiles industriels
DE102019134837A1 (de) * 2019-12-18 2021-06-24 Voith Patent Gmbh Bespannung

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US9169598B2 (en) 2015-10-27
WO2013010678A1 (fr) 2013-01-24
EP2734672A1 (fr) 2014-05-28
DE102011079517A1 (de) 2013-01-24
US20140166224A1 (en) 2014-06-19
CN204151608U (zh) 2015-02-11

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