• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The system for connecting a web (3), such as an awning, comprises a winding shaft (5) with a flat recess (9) running under the jacket surface (7). At least one hanging profile rod (17) is attached to the web (3) and can be radially introduced into the recess (9) in the winding shaft (5) and locked into the recess (9) by a tangential displacement. The web (3) runs over from the slot into the jacket surface (7) without forming a step.
    公开号:CH716318A2
    申请号:CH00545/20
    申请日:2020-05-07
    公开日:2020-12-15
    发明作者:Roeckel Hervé
    申请人:Griesser Holding Ag；
    IPC主号:
    专利说明:

    The invention relates to a system for connecting a web of material to a winding shaft according to the preamble of claim 1.
    Awnings as sun and / or rain protection comprise a web of material that can be wound on a winding shaft in order to be able to protect it and stow it in a small space when not in use. Usually, a rod is inserted into a hemstitch in the edge of the fabric to be connected to the winding shaft, thereby forming a welt bead. Alternatively, a welt flap can also be attached to the edge of the fabric, e.g. be sewn on. To fasten the edge of the fabric with the welt bead to the winding shaft, an axially extending recess is attached to the latter under the jacket surface as a welt rail, into which the welt can be inserted. Most of the time, the recess is approximately circular in cross section and the recess is only connected to the surface of the winding shaft at a narrow point, so that after the material web is inserted with the piping, the material web is held in the axial direction. Such connections between the fabric web and the winding shaft are safe and relatively easy to handle.
    A disadvantage of such a connection is the effort involved in inserting the welt, since it can only be introduced into the winding shaft at the end and consequently the winding shaft must be exposed at its end for insertion. Another disadvantage is that the web of fabric, for example an awning fabric made of acrylic, which can at least have a thickness of 1 to 3 mm, is led out radially out of the recess on the winding shaft and thus the area after the first loop and further loopings when winding the awning, which lies over the slot of the recess, is slightly lifted off and consequently this area is defined by this bead on the awning when it is extended. This leads to a negative appearance of the awning.
    If the awning or its edge is screwed or riveted onto the shaft and pressed onto the surface of the shaft by a cover rod, the same negative appearance arises, since this area is also visible one or more times on the awning.
    [0005] EP 3 431 678 A1 also discloses an arrangement for connecting a web of material, in particular awning, to a winding shaft. In this arrangement, a recess is made in the winding shaft, the base of which is formed in the shape of a segment of a circular arc and on the two side edges of which there are S-shaped areas in cross-section, so that the slot in the outer surface of the winding shaft is smaller than the base of the recess. The recess forms space for a bar that can be clicked into place through a groove that is essentially T-shaped in cross section, so that it does not protrude beyond the jacket surface of the winding shaft, but can reach under the protruding edge areas of the slot with its lateral edges. In order to be able to insert the bar to which the awning is attached into the axially extending recess, a groove is made on the underside of the bar so that the area of the bar outside the groove, which must be made of a relatively soft, flexible plastic material , when the rod is placed and simultaneously compressed, it can reject the recess or the slot over its entire length and so the width of the rod is shortened for a short time. After the rod has been pushed in radially, the rod area swings away from the groove again outside the groove and thus holds the rod firmly within the recess. Furthermore, a bore running along its longitudinal edges is embedded in the rod and is connected to the surface of the rod by a slot. The piping on an awning has to be pushed axially into this hole and thus held on the rod.
    Although this arrangement enables a recessed arrangement of a rod holding the awning, on the one hand connecting the awning to the rod is expensive, since it has to be pushed into the rod over the entire length of the rod. In the case of awnings several meters long, this can require a lot of effort in terms of space and also in terms of work. Furthermore, on the other hand, the rod cannot be securely held in it after it has been clipped into the recess in the winding shaft, because if an increased tensile force acts on the awning, especially if the recess on the winding shaft is not in the upper apex of the same, but comes to lie further down, the rod is bent and thereby the elastic holding area can be pulled out of the recess, since it is known that it must be designed to be pivotable on the rod for insertion. On the one hand, the connection between awning and rod is therefore very complex and, on the other hand, the anchoring of the rod after assembly on the winding shaft is not guaranteed in every position.
    Furthermore, from CH 698 032 a winding shaft is known in which an S-shaped holding area is attached along the edge of the awning, which has to be connected to the winding shaft. This engages in a circular hole in the winding shaft that is connected to the surface through a slot. A secure hold of the awning is only guaranteed if the awning has already been wrapped around the winding shaft and comes to rest over the S-shaped hook and presses it radially onto the winding shaft. A secure hold is therefore not guaranteed.
    [0008] US 2006/0207731 also discloses a connection arrangement between a winding shaft and the edge of an awning. A retaining element is attached to the edge of the awning, the end of which is T-shaped and engages in a corresponding T-shaped groove in the winding shaft. An awning equipped in this way can only be inserted axially into the winding shaft. This has the effect that when changing the awning, e.g. if this is damaged or if a new sun protection system is being installed, the winding shaft is lifted out of its mounting, then the awning, e.g. a 6 m wide awning has to be inserted and afterwards the heavy winding shaft including the unwound awning has to be transported up into the bearings for the shaft Such an arrangement is very time-consuming during assembly (axial insertion and lifting of the heavy shaft with the awning on it and its subsequent assembly on the top of a window or door opening).
    It is an object of the present invention to provide a system for fastening or connecting the edge of a textile web to a winding shaft which, on the one hand, enables simple assembly, i.e. allows a simple connection of the web with the winding shaft at its place of use, as well as ensuring a smooth transition from the winding shaft to the awning.
    This problem is solved by a system according to the features of claim 1.
    The inventive connection system makes it possible to arrange the connection area of the web completely under the jacket surface of the winding shaft, so that there is no step-like transition on the surface of the winding shaft and after the first wrapping of the winding shaft by the web of material coming to lie above the connection area the second winding layer of the web is not forced radially outwards, but comes to lie within the arcuate course of the jacket surface of the winding shaft. The transition from the first looping to the second is consequently stepless without the formation of a bead. This is achieved by a hanging profile rod which is connected on one side to the edge area of the web and which can be completely inserted into a recess under the surface of the winding shaft and fastened there so that it can be locked in place. The system is very advantageous and time-saving in that the hanging profile bar with the length of fabric can be brought radially to the winding shaft built into a door or window lintel and hooked into a recess in its outer surface and locked into place without tools. There is no axial displacement during use, as the suspension profile rod engages in the recess. It is therefore no longer necessary to dismantle the winding shaft in order to introduce the connecting element.
    The suspension profile bar can be connected in a simple and inexpensive manner directly to the edge area of the web by the connection being made by ultrasonic welding or by gluing.
    In addition, no seam has to be attached to the edge of the material web, but rather the cut edge can be attached to the suspension profile bar without further treatment.
    Alternatively, in an advantageous embodiment, a transition element can be attached in advance to the edge of the material web, which in turn is connected to the suspension profile bar. The transition element improves the smooth run-in of the material web from the recess into the outer surface of the winding shaft.
    [0015] The recess can be produced very easily on the winding shaft. The recess has a slot which is very wide in relation to its depth and which enables the insertion of the suspension profile rod in the radial direction and does not, as before, require dismantling of the winding shaft in order to be inserted axially.
    The hitherto necessarily to be formed on the web with a rod arranged therein to form a welt bead as a fastening element on the winding shaft is omitted. The hanging profile bar can be attached directly to the cut, uncleaned web edge with little effort by gluing or ultrasonic welding. In the preferred embodiment of the system, the uncleaned leading edge of the material web is connected to a connecting tape by welding or gluing. The connecting tape, for its part, is also connected to the hanging profile bar by gluing or welding. This enables the suspension profile bar to be inserted completely into the slot-shaped recess and no parts protrude beyond the jacket surface of the winding shaft. If a connecting tape is also inserted between the material web and the hanging profile bar, a completely seamless connection between the winding shaft and the material web can be achieved. The suspension profile rod and the connecting tape, which is preferably made of a softer material than the profile rod, can also be made in one piece, so that only one connection to the fabric edge has to be made. If an awning's web has to be replaced after years due to a defect, the web with the attached profile bar can be pushed out of the recess and replaced with a new or repaired web without dismantling the winding shaft.
    [0017] The invention is explained in more detail using an illustrated embodiment. Show it:<tb> <SEP> Figure 1 a winding shaft with a recess and a hanging profile bar with the material web arranged therein,<tb> <SEP> Figure 2 a winding shaft and the hanging profile bar with the end of the material web when hanging in the recess on the winding shaft,<tb> <SEP> Figure 3 the hanging profile bar,<tb> <SEP> Figure 4 the connection element,<tb> <SEP> Figure 5 the hanging profile rod, connected with a connection element for the fabric,<tb> <SEP> Figure 6 shows an enlarged recess in the jacket of the winding shaft,<tb> <SEP> Figure 7 a suspension profile bar with an integrated connection element and a web attached to the suspension profile bar,<tb> <SEP> Figure 8 is a perspective view of Figure 7 and<tb> <SEP> FIG. 9 shows a winding shaft with the recess and the suspension profile bar arranged therein with connection element and material web according to the second embodiment of the invention.
    In Figure 1, reference numeral 1 denotes a system for connecting a web 3, e.g. the fabric for an awning, designated with a winding shaft 5. The winding shaft 5, which can be driven manually or electrically, has a circular cross section with a jacket surface 7. The winding shaft 5 is preferably made as an aluminum profile. At the apex of the winding shaft 5 in FIG. 2, a recess 9 can be seen which is formed under the jacket surface 7 and above which an axially extending slot 11 (FIG. 6) with a width b is formed in the jacket surface 7. The width b of the slot 11 can extend in the circumferential direction up to the dimension of the radius r of the winding shaft 1. Of course, depending on the diameter of the winding shaft 5, a significantly smaller opening width b can also be selected. The cross-section of the recess 9 has the shape of a T-groove or, as shown in the figures, a flattened C lying on its back, the back 13 of which can be bent slightly radially convex outwards, i.e. approximately parallel to the missing area in the Jacket surface 7 above the slot 11. The recess 9 has an inner width B. The two transitions from the jacket surface 7 to the back 13 run approximately in the shape of semicircles directed towards one another (see FIGS. 1, 2, 6).
    The recess 9 is used in the system to receive a suspension profile rod 17. In cross section, the suspension profile rod 17 has the shape of an upside-down T with a bottom surface 19, the convex curvature of which on the back 13 in the recess 9 the winding shaft 5 can correspond. A contact surface 21 opposite the bottom surface 19 on the body of the suspension profile bar 17 serves to receive and connect a connecting tape 23 or directly to the edge area of the web 3. The connecting tape 23 as part of the profiled bar 17 is used to attach the front edge area of the web 3 to the hook -Profile rod 17 to be permanently connected. In FIG. 4, the connecting tape 23 has a shoulder 25 on its radially outer surface on the right-hand side, so that the surface of a web 3 fastened to the connecting tape 23 in the thinner area 23 'merges continuously or without a step into the outer surface 27 of the connecting tape 23 . The connecting band 23 and a front edge of a web 3 fastened thereon consequently lie in a common convexly curved surface.
    The connecting strip 23 can have a greater wall thickness at its left free end in FIG. 4 than in the subsequent section lying in contact with the hanging profile bar 17. The connection between the suspension profile rod 17 and the connecting tape 23 can be made by gluing or, as shown in the example, by ultrasonic welding, which can result in an insignificant indentation in the connecting tape 23 in the welding area 29 and possibly also in the contact surface 21 of the suspension -Profile rods 17.
    The suspension profile bar 17 is stepped at both ends so that the upper contact surface 21 is shorter than the lower bottom surface 19.
    The first step-shaped section 31 of the suspension profile rod 17 takes on the thicker end of the connecting tape 23 on the left side and is longer than the second step-shaped section 33 on the right-hand side in FIGS. 3 and 5.
    The thickness c1 of the suspension profile rod 17 following the first step-shaped section 31 is smaller than the thickness c2 before the second step-shaped section 33. Through this measure, the surface 27 of the connecting strip 23 reaches the jacket surface 7 of the winding shaft 5 steplessly.
    In order to achieve an optimal permanent connection between the suspension profile bar 17 and the connecting tape 23 on the contact surface 21, these are made of an ultrasonically weldable material or of materials that can be optimally and permanently glued together. The connecting band 23 is preferably made of a plastic that is more flexible, softer and more compressible than the harder and thus stiff material of the hanging profile rod 17. The hanging profile rod 17 and the connecting band 23 can also be made in one piece, e.g. by an extrusion process or a two-component injection process, so that later gluing or welding of the two elements to one another is no longer necessary.
    The mode of operation of the connection between the winding shaft 5 and the suspension profile bar 17 with the connecting tape 23 attached to it and the web 3 of the first embodiment attached to it will be described. After a material web 3 for an awning has been cut / assembled, its front edge or the front edge region is connected to the shoulder 25 on the connecting tape 23 in abutment therewith. The connection can be made by gluing or by ultrasonic welding, which permanently connects the two materials, namely the web 3 and the connecting tape 23, to one another. The fabric web 3 prepared in this way with the connecting tape 23 attached to it is now connected to the hanging profile bar 17. This connection can also be made by gluing or ultrasonic welding. Of course, the suspension profile bar 17 could also be connected to the connecting tape 23 first and only then the web 3 could be attached to the connecting tape 23.
    The awning prepared in this way can now be mounted on the winding shaft 5, which is rotatably supported in the lintel of a window or door opening or in a weatherproof housing and can be rotated by a manual or motorized drive. For this it is not necessary to detach the winding shaft 5 from its suspension and drive, but the suspension profile rod 17 with its front, i.e. on the left side in the figures, the step-shaped shoulder 31 is introduced into the recess 9 essentially at an acute angle to the jacket surface in the direction of the arrow F. The first step-shaped section 31 engages under the semicircular area 15 of the recess 9. During insertion, the thickened end of the connecting tape 23, since it is preferably made of a softer material than the central area of the profile rod 17, can be pushed back or pushed back a little. As soon as the first step-shaped section 31 is pushed under the semicircular edge of the recess 9 and pushed under, the suspension profile rod 17 is pivoted in the direction of the arrow P (clockwise) and then comes with its bottom surface 19 in contact with the back 13 of the recess 9 ( see Figure 1).
    As soon as the winding shaft 5 is rotated counterclockwise, on the one hand the web 3 is pressed radially against the jacket surface 7 of the winding shaft 5 and the suspension profile rod 17 or its second step-shaped section 33 is drawn into the arcuate edge region of the recess 9. The first step-shaped section 31 remains held radially in the arc-shaped section of the recess 9 (left side). The clockwise insertion is also supported by the tension of the compressed soft end of the connecting tape 23. The hanging profile bar 17 is now, almost filling the recess 9, held in the recess 9 on both edges. The surface 27 of the connecting tape 23 and the outer one The surfaces of the web 3 lie in a seamlessly running, essentially circular path in the jacket surface 7 of the winding shaft 5.
    In a further embodiment of the invention according to Figures 7 to 9, the suspension profile rod 17 'is designed as a unit with the connecting tape 23 "and can thus be produced in one piece from two components of different hardness and referred to as a connecting element 35. The connecting element 35 comprises a first step-shaped section 31 and a second step-shaped section 33. Furthermore, a resilient lug 37 is formed on the first step-shaped section 31 and on the opposite side above the second step-shaped section 33 a likewise made of a softer material than the central part of the connecting element 35 The main body of the connecting element 35 is preferably made of a plastic material with greater strength and, above all, greater rigidity than the nose 37 and the section 23 'of the connecting band 23. The connecting element is manufactured in the injection molding process with two different plastic components. The two components, namely the rigid for the main body and the elastically deformable one for the nose 37, and optionally also for the section 23 ', are consequently inseparably connected.
    The connection of the web 3 with the lower strength or thickness and preferably high elasticity having section of the connecting tape 23 'outside the paragraph 25, serves as a connection area of the connecting element 35 with the web 3. The connection is made either by gluing with a Glue, through mutual gluing through the action of heat or through ultrasonic welding.
    The mode of operation of the connection between the winding shaft 5 and the suspension profile bar 17 with the material web 3 of the second embodiment attached thereto is described below.
    After cutting / assembling the web 3, its front edge is placed on the shoulder 25 of the connection area 23 'and connected to the connection area 23' by an adhesive, thermal fusion or ultrasonic welding. The connection of the web 3 to the connecting element 35 can preferably already take place in the premises of the manufacturer of the awning or at the place of use shortly before the fastening of the web 3 to the winding shaft 5.
    The web 3 attached to the connecting element 35 is then, as shown in Figure 2 of the first embodiment, on site, i. latched onto the winding shaft that is already attached to a building. The fitter introduces the first step-shaped section 31 on the suspension profile bar (17) at an acute angle to the surface of the jacket of the winding shaft 5 under the semicircular recess 15 in the recess 9 on the winding shaft 5. The elastic nose 37, which extends as a rib over the entire length of the connecting element 15 or over at least several partial lengths, now touches the jacket 7 of the winding shaft 5. By applying slight pressure in the direction of the force F in FIG. 2, he pushes the first step-shaped section 31 completely into the semicircular recess until the second step-shaped section 33 comes into contact with the back 13 of the recess 9 by pivoting the hanging profile rod 17 clockwise. As soon as the force F on the suspension profile rod 17 is canceled, the connecting element 35 moves clockwise by the force of the elastically tensioned nose 37 and its second step-shaped section 33 comes under the semicircular area of the recess 9 on the right-hand side. The suspension profile rod 17 is anchored in the recess 9. As soon as the winding shaft 5 is rotated counterclockwise in order to be able to wind up the web 3, the connecting element 35 is also moved up to the stop in the recess 9, unless the force of the nose 37 has already moved the connecting element 35 completely clockwise.
    If an awning or the web 3 has to be replaced in the event of damage, it can be removed from the winding shaft 5 in the reverse order without dismantling it.
    Legend of the reference symbols
    1 system 3 web 5 winding shaft 7 outer surface 9 recess 11 slot 13 back 15 semicircle 17 suspension profile bar 19 bottom surface 21 contact surface 23 connecting tape 25 paragraph 27 surface of 23 29 welding area 31 1st step-shaped section 33 2nd step-shaped section 35 connecting element 37 nose
    权利要求:
    Claims (11)
    [1]
    1. System for connecting a material web (3) to a winding shaft (5) of a sun protection device, comprising a connecting element with a suspension profile bar (17) for attachment to a front edge of the material web (3) and an axially extending one in the winding shaft (5 ) formed recess (9) with a slot (11) running in the jacket surface (7) of the winding shaft (5) for inserting the connecting element into the recess (9) below, the slot (11) having a smaller width b than the width B of the recess (9)characterized in thatthe suspension profile bar (17) has a substantially rigid, non-deformable base body with first and second likewise rigid stepped sections (31, 33) formed along its two longitudinal edges and an elastically deformable nose (37) over at least one of the sections (31, 33) ) includes.
    [2]
    2. System according to claim 1, characterized in that the elastically deformable nose (37) is designed as an uninterrupted rib over the entire length of the connecting element (17) or consists of a plurality of rib sections which extend over the first stepped section (31 ) lies.
    [3]
    3. System according to one of claims 1 or 2, characterized in that the nose (37) is formed essentially perpendicularly on the first step-shaped section (31) or that the nose (37) extends horizontally on the central region of the connecting element (17 ) arranged over the first step-shaped portion (31).
    [4]
    4. System according to one of claims 1 to 3, characterized in that the suspension profile rod (17) after being inserted into the recess (9) by a displacement in the recess (9) running tangentially to the surface of the jacket of the winding shaft (5) ) can be locked.
    [5]
    5. System according to one of claims 1 to 4, characterized in that- That the recess (9) comprises a back (13) which is spaced apart from the jacket surface (7) and whose curvature runs essentially parallel to the curvature of the jacket surface (7) of the winding shaft (5) or is straight,- That the back (13) extends semicircularly at both ends into the two longitudinal edges of the slot (11) in the jacket surface (7) and- That the width b of the slot (11) is smaller than the distance B between the two arcuate side walls of the recess (9).
    [6]
    6. System according to one of claims 1 to 5, characterized in that the suspension profile rod (17) has a cross-section in the shape of an upside-down T, wherein the horizontal part of the bottom surface (19) of the suspension profile rod (17) is adapted to the curvature of the surface of the back (13) of the base of the recess (9) and the contact surface (21) opposite the bottom surface (19) corresponds approximately to the circular section of the jacket surface (7) missing above its slot (11).
    [7]
    7. System according to claim 6, characterized in that the contact surface (21) is shorter than the bottom surface (19) and that the transitions from the contact surface (21) into the bottom surface (19) are designed as step-shaped sections (31, 33) .
    [8]
    8. System according to claim 7, characterized in that one of the two sections (31) and (33) has a longer holding area reaching under the arcuate side walls of the recess (9) than the holding area on the other section (33).
    [9]
    9. System according to one of claims 1 to 8, characterized in that a connecting tape (23) for connecting the front edge of the web (3) with the suspension profile bar (17) is formed, the cross section of which is along one of the two edges of the connecting tape (23) has a shoulder (25), the height h of which corresponds to the thickness of the material web (3).
    [10]
    10. System according to claim 9, characterized in that the material web (3) is connected to the suspension profile bar (17) directly on the suspension profile bar (17) or indirectly through the connecting tape (23).
    [11]
    11. System according to one of claims 1 to 10, characterized in that the connection of the web (3) with suspension profile bar (17) or the connections of the web (3) with the connecting tape (23) and the connecting tape (23) with the suspension profile rod (17) is carried out by gluing or by ultrasonic welding.
    类似技术:
    公开号 | 公开日 | 专利标题
    EP0562245B1|1996-01-10|Florentine blind
    EP0056934A2|1982-08-04|Device for securing a flexible sheet to a structure
    DE102009023835B4|2011-02-10|Fastening device
    EP0547314B1|1995-02-15|Fixing arrangement of a border reinforcement of an awning canvas or similar in a groove
    EP0530483B1|1994-12-07|Roof covering composed of metal sheets placed side by side
    EP0146101B1|1990-08-29|Profiled joint
    EP3748100A1|2020-12-09|System for joining a web to a winding shaft
    CH716318A2|2020-12-15|System for connecting a web of material with a winding shaft of a sun protection device.
    DE2418205A1|1975-11-06|Facing-wall-cladding threaded bolt anchorage - with inner spreader area and outer extensible spreader or clamp area
    DE2407552A1|1975-08-28|Large-area roofing or side canvas sheet connection - with edge beading locked in connecting-element channel
    EP2161384A2|2010-03-10|Sealing tape with stabilisation element
    DE3842089A1|1990-06-28|Device for fastening web-like material, in particular plastic sheets or the like
    DE102009057224A1|2011-06-09|Awning fabric has water outlets arranged adjacent to each other in transverse or longitudinal direction, where awning fabric is designed by using fabric sheets interconnected by strip-shaped connection points
    DE3924497A1|1991-01-31|JOINT TAPE WITH IMPROVED ASSEMBLY PROPERTIES
    DE202006015852U1|2006-12-21|Lattice fabric strip for embedding in a plaster layer on a heat insulation of a building wall comprises a profiled strip having a recess and/or opening and arranged on one side of the fabric strip
    DE2444983C3|1979-04-19|Sealing strip for the gap between a sliding window sash and a mating surface
    DE19937285A1|2000-04-27|Duplex profile and motor vehicle door frame seal
    EP0466713A1|1992-01-22|Multi-part dowel.
    DE19858437C2|2001-09-13|Connection between opposite profile strips of a door panel
    DE102013203645B4|2014-12-31|Awning arrangement with a holding device for the awning cloth
    DE102013214759B4|2019-12-12|Vehicle body component made of fiber-reinforced plastic
    EP2487308A2|2012-08-15|Mounting element for a cover plate, mounting element and method for mounting a cover plate
    EP3366859A1|2018-08-29|Device for connecting a technical fabric to a beading groove
    DE6804257U|1969-02-06|COMPONENT SET FOR FASTENING COVERINGS TO WALLS AND / OR CEILINGS
    DE8332642U1|1984-03-01|Roman curtain
    同族专利:
    公开号 | 公开日
    CH716257A1|2020-12-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US7614439B2|2004-10-05|2009-11-10|Stephen Lukos|Roller tube having external slot for mounting sheet material|
    CH698032B1|2005-05-10|2009-04-30|Franz Kraler|Winding shaft.|
    BE1025413B1|2017-07-19|2019-02-20|Renson Sunprotection Screens Nv|SCREEN DEVICE|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH00729/19A|CH716257A1|2019-06-06|2019-06-06|System for connecting a material web with a winding shaft.|EP20174507.2A| EP3748100A1|2019-06-06|2020-05-13|System for joining a web to a winding shaft|
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