DE102017104502A1 - Films Gate - Google Patents

Abstract

In order to realize large door widths in film doors (1), the winding shaft (2), that is to say the winding (14) located thereon, is supported between the bearings by at least one support device (5) from below. In particular, due to the changing diameter (D) of the roll (14), either the at least one support device (5) or the bearing blocks (3a, b) are designed to be vertically movable.

Description

field of use

The invention relates to film doors with which a door opening, e.g. locked in a wall and can be reopened quickly.

II. Technical background

In such film gates, the door curtain, usually a foil, or the sections of a sectional door, is opened and closed on a winding shaft mounted transversely above the door opening.

In this case, the winding shaft and the forming thereon of Torfolie film with increasing door width and / or weight, in particular thickness, the Torfolien, in the middle more and more, as a support of the winding shaft takes place only in the frontal bearings, which is why one-piece foil doors , so slide gates without additional pillars, depending on the weight of the door curtain were previously limited to maximum widths of about 10 m and / or heights of about 6 m.

In order to comply with the maximum permitted deflection by standards, with increasing goal width and / or gate height was attempted to counter by bending the winding shaft by increasing the diameter of the hollow winding shaft, but this has massively increased the dimensions of the film gate in the winding shaft, and in addition, the price and weight of the winding shaft, which in turn has a much more stable and expensive support structure and especially a much larger and more expensive drive motor and higher energy consumption.

III. Presentation of the invention

Technical task

It is therefore an object of the invention to provide the lightest and most compact and cost-producible film door available with the large gate widths are possible without the door opening is interrupted in the open state of the gate by buttresses and without in width Torfolie, so the door curtain, is interrupted.

Solution of the task

This object is solved by the features of claim 1. Advantageous embodiments will be apparent from the dependent claims.

First of all, it should be clarified that in the case of film doors according to the invention, the door curtain can be any windable door curtain:

On the one hand, of course, a goal foil, so a mostly made of plastic, transversely to its main plane sufficiently elastic material, which is thus wound on a winding shaft, with quite Torfolien with a thickness of up to 4 or 5 mm are still windable when the winding shaft on it has adapted outer diameter.

In addition, the sections of a so-called. Sectional, so several, in the width direction of the gate, ie usually the horizontal, parallel to each other extending strips which are hinged together at their upper and lower edges, so that they wound up to a substantially round , in detail about polygonzugartigen, winding wind up.

The following is preferably from Torbehang the speech, however, if the word "goal foil" is used, this should include all other possibilities of a door curtain with.

In a generic film gate, the winding shaft is mounted at its two front ends, usually by the winding shaft frontally beyond projecting journals, which are mounted in bearing blocks, which are fixed to the wall next to the door opening or on the door opening.

In this case, as a rule, one of the journals is driven by a motor which is likewise fastened to the wall there, either by being flange-mounted directly on the bearing journal of the winding shaft or, for the purpose of transmission or reduction, by means of e.g. Chain drive is driven.

Of course, conversely, a fixed mounted journal projecting into the inside of the winding shaft end face and then the winding shaft by means of a between inner circumference of at least in this area hollow winding shaft and the fixed bearing journal be stored. Then and in other storage arrangements, the following invention is also applicable.

The sagging of the winding shaft and the winding thereon is inventively avoided that in the width range of the door, ie between the front bearing points of the winding shaft, at least one support device is present, which supports the winding shaft including the winding thereon from below and avoids the deflection or at least minimized.

The support device is mounted on the wall above the door opening above the coil and thus on the winding shaft, and extends on the side facing away from the wall to the winding shaft around to below the winding shaft. This is necessary, since usually must be able to extend downwards between the winding shaft and wall of the deducted part of the door curtain. There, preferably below the winding shaft, the support device has at least one support element which supports the winding shaft and the winding thereon from below.

Of course, for the rare case that the peeled part of the door hanger extends down the side of the reel away from the wall, the support device may extend from the wall directly below the reel away from the wall - without the reel and up to surround the wall-facing outside - and there support the winding by means of at least one support element.

It should also be clarified that due to this deduction direction solely by the weight of the hanging door curtain on the winding shaft acts a force that is directed not only vertically downwards, but also horizontally to the withdrawal side, so usually to the wall.

The support element can be a support element that slidably adjoins the winding rotating or unwinding, or a support element that moves with the outer circumference of the winding, in particular synchronously, such as a support roller or support roller.

The supporting of the roll or even the empty winding shaft can usually be done only in the lower half of its circumference.

Just a sliding on the rotating winding attacking supporting element can - considered in the direction of the winding shaft, ie the axial direction - either rest at several points of the lower half of the circumference of the coil, or rest over a continuous circumferential segment at the lower half of the circumference of the coil.

Preferably, the support device - viewed in the axial direction of the winding shaft - hook-shaped with an approximately angled mounting part, of which in the mounted state, the one leg extends approximately horizontally and which can be attached to the wall, and the other leg at a distance from the wall pointing downwards at its free end. At the free end of this leg, the upwardly concave curvature of such a support hook - if it is about a continuous circumferential segment on the winding adjacent support element - connect, with a continuous over a circumferential segment concave support surface on which the coil can rest ,

In this case, the radius of curvature of the concave support surface must be greater than the radius of the fully wound roll, and the lowest point of the concave support surface should preferably extend directly below the axis of the winding shaft, so lie in the vertical plane passing through the axial direction of the winding shaft.

In the case of several support elements distributed over the circumference of the roll, in particular sliding support elements, it is not absolutely necessary to adapt the support to the peripheral contour and the changing diameter of the roll:

Preferably, at least two support elements, preferably sliding support elements, in the lower half of the circumference of the roll abut this, and preferably no support element on the axis of the deepest points of the roll are located, so that for example two support elements they are arranged so that a self-centering of the Wickels between the support elements takes place, which are preferably located on different sides of the plane passing through the axial direction of the winding shaft vertical plane and / or on different sides of the viewed in the axial direction of movement plane along which the winding axis of the at least one support element moves away, as increasing Diameter of the coil rests on one or more than several support elements.

Instead of a concave upwardly open support surface which is curved and in particular has a uniform radius of curvature, the support surface may also have two mutually angled support surfaces, so in particular V-shaped or polygonal design, regardless of whether the two legs of the V Form at its lower end or there is an opening.

This is also possible with more than two support elements, for example, four support elements, which can then be arranged so that with increasing diameter of the coil, first the two of the vertical plane or plane of movement by the axial direction of the winding shaft nearest support elements come into contact with the winding and only with further increasing thickness of the coil, an additional, further from the vertical plane or plane of movement, outer support member, in particular two more distant, in pairs, in particular symmetrically, to the vertical plane or plane of movement opposite outer support elements.

It should be clarified that considered in the axial direction of the winding can always rest simultaneously defined only on two line-shaped or strip-shaped contact surfaces in the circumferential direction, and a circumferentially spaced third support surface always represents a geometric overdetermination, and therefore usually an investment in only two such Contact surfaces takes place, however, the contact with a third, possibly previously been applied to the winding, contact surface will be lost.

In addition to the preferably in the entire winding process in contact with the winding standing support elements another only potential support element may be present - especially in a winding and the winding shaft on the outside embracing support device - which reaches the winding at most in the state of its largest winding, and which is primarily intended to avoid a sliding contact of the outer peripheral surface of the coil with the support device, in particular the support device for the support elements such as the support hooks.

In one design, therefore, the support elements are arranged in pairs and in each case symmetrically to the vertical plane through the axial direction of the winding shaft with multiple support elements.

In another design, the support elements can also be deliberately arranged asymmetrically to the vertical plane, for example, to counteract the force acting on the winding shaft, obliquely directed downward toward the wall, trigger force.

Thus, when viewed in the axial direction of the winding shaft - in a transversely spaced pair of support members on which the coil rests, the trigger-side, in particular wall-side support member be positioned slightly higher than the other support member, and so give a Winding be avoided from the support by the withdrawal force

Just a sliding support member should have an extension in the axial direction of the winding shaft, which corresponds to at least half, better at least the simple, better at least twice the diameter of the fully wound coil. In a hook-shaped support element with bottom closed support surface thereby creates a support tray. Because too small dimension in this direction, the surface person over the film is always larger, so that lasting, visible impressions can form in the Torfolie.

The sufficient extent in the axial direction also depends on how many support devices are present across the width of the Folientores, the extent of both the individual support elements in the axial direction and the sum of the axial extensions of the support elements of all existing support devices in response to the maximum contact pressure of the coil should be set on the support element to a given maximum surface pressure - which also depends on the material of the door curtain - between the support element and the winding not to exceed.

Especially with slidably abutting the rotating winding support elements, it may be advantageous that at least one wear belt is arranged on the wall of the door opening directed towards the back of the door curtain, which runs in the direction of movement of the door curtain, and either a separate, at least one point on the door curtain may be fastened, wear belt or over the entire longitudinal extent connected to the door curtain wear belt, in particular a integrally formed together with the door curtain wear belt.

The at least one support element is then arranged in the width direction of the gate at the location of the wear belt, so that preferably the winding slides exclusively with the wear belt on the respective support element, in particular on the sliding, ie not moving, support element along, so that the back of the actual Torfolie not is damaged.

The disadvantage is a larger diameter of the roll as a result.

Likewise, just in the case of large door widths, the goal foil can be composed of several strips running in the direction of movement, the edges of which are firmly connected to one another by means of a welded seam. However, the goal foil then almost always has a slightly greater thickness in the area of the weld seam than away from the weld seam.

Preferably, therefore, the support elements should rest against the welds of the goal foil, in particular only at the welds, since then the effective thickness of the roll is the same at all side by side arranged support devices.

If - for example, because the support device also has a guide roller for inserting the outermost edge of the Torfolie in the top to bottom For this reason, it may be advantageous to position the weld seams of the door foil in such a way that even weld seams in the effective region of this laterally, ie in the width direction, extreme support devices are located.

Preferably, however, the support element is a support element that moves with the rotating winding on its outer circumference, preferably a rotatable support roller or a moving support belt.

A support roller is arranged so that its axial direction is approximately parallel to the axial direction of the winding shaft.

Preferably, as stated above, the support device comprises a plurality of support rollers arranged away from the vertical plane through the axis direction of the winding shaft, in particular symmetrically to the vertical plane, so that a polygonal traction defined by the middle of the support rollers, viewed in the axial direction of the winding roller, in turn preferably the Contour of an upwardly open pan forms, if it is more than two support rollers. With only two support rollers, one is preferably arranged in front of and one behind this vertical plane, preferably at the same horizontal distance and / or at the same height.

Preferably, a support device therefore has an even number of support rollers which are intended to engage the winding in order to effect a good centering of the winding relative to the support elements, in particular support rollers, viewed in the axial direction.

The at least one, preferably several, support rollers are preferably attached at their axial ends to one each of two axially spaced support elements, in particular suspension hooks. Each support hook may have a lower, in particular concave upwardly open, support region on which one ends of the individual support rollers are mounted. The support region of each support element is held in position via a fastening region, which extends mostly on the wall-remote side of the roll upwards and above the roll toward the wall and is fastened there.

Especially when the door curtain is not flat, so for example, in the goal foil extending in the width direction stiffening struts are thickened, or the door curtain consists of individual, arranged in the direction of movement of the door curtain, sections, there is the rolling of the Winding on support rollers, in particular supporting rollers with a small diameter, may not be optimal, as this always triggers height movements of the winding shaft.

Depending on the design of the door curtain, this can pose problems even if the diameter of the support rollers moves in the optimum range.

The diameter of the support rollers should optimally be at least 3%, better at least 5%, better at least 7%, better at least 9% of the diameter of the fully wound roll, in particular a light, unevenness negatively influenced, run over the support rollers by the unevenness cause.

Preferably, the diameter of the support rollers should be at most 100%, better at most 80%, better at most 60%, better at most 35%, of the diameter of the fully wound roll to not be too large dimensions of the film gate in the winding shaft.

The diameter of a support roll should be between 0.3 times and 5.0 times, more preferably between 0.5 times and 3.0 times, the diameter of the winding shaft.

In the case of a plurality of support elements facing each other with respect to the vertical plane through the winding shaft, the distance between the mutually corresponding, in particular at the same height, with respect to this vertical plane opposite support elements should preferably be smaller than twice the diameter of the winding shaft, in particular smaller than the diameter the winding shaft.

Nevertheless, it may be useful to let the winding rest on a support band instead of on individual support elements or support rollers, which may preferably be an endlessly revolving support band in the form of another support in the axial direction.

Thus, the support band to two or more, in particular with respect to the vertical plane through the winding axis opposite support rollers rotate, preferably wherein the support rollers are arranged so that - even with the interposition of the support band - not directly on the outer circumference of the coil, at least on At the beginning of the winding, but especially in no Aufwickelzustand abut, but the winding only on the top of the upper strand of the endless circumferential support band in the area between the support rollers concerns.

On the one hand, this causes the radius of curvature of this so formed by the support belt support pan is very large, and so designed support device for a very wide range of maximum winding diameters can be used, and thus a curtain with changing thickness, as for example when incorporated, transverse stiffening strips occurs, can roll well on the support belt.

In particular, for adaptation to the maximum diameter of the angle, in particular both, support rollers over which the upper strand of the support belt runs, in their mutual distance, in particular in their distance from the vertical plane through the winding shaft, be adjustable, in which case the length of the endless , circumferential support band must be adapted to this.

By a third role, which acts as a tension roller, and is located below the two support rollers and presses against the inside of the lower strand and is adjustable in position relative to this, can also be used with an equally long, endless support band by the tensioner so is set, that the desired voltage of the support band, in particular in the unloaded initial state is achieved.

The tensioner can also be a vertically mounted on both sides mounted, freely movable in height, so-called dancer role, either alone by its own weight or additionally this dancer roll downward force acting, such as a spring force, the Supporting band always keeps in the same state of tension.

On the other hand can be selected as the material for the support band such, which has a defined extensibility, so elasticity, so so with thicker winding winding, the support band due to the increasing contact force through the winding more and more stretched, and thereby the radius of curvature of the support band formed support trough is smaller and as a result, the contact area between the winding and the support band is getting larger, causing the surface pressure between the two little or no increase.

As a result, an approximately or completely unchanged altitude of the winding shaft can be achieved despite the changing Bewicklungs state even when fixed in height support rollers.

In this case, the support rollers around which the support belt rotates, also be positioned and designed so that the support rollers abut with the interposition of the support belt only at the end of the complete winding of the roll on this, and then because of the fixed positioning of the support rollers for this state also fixed position of the particular fully wound winding shaft - considered in the axial direction - set.

If more of such support devices, ie with a trough-shaped circumferential support band, are distributed in the axial direction of the winding shaft, the deflection of the winding shaft and of the winding is different at the individual axial positions.

This can be taken into account by using different elastic support bands, then in the width direction in the central region of the winding shaft, the support band with the least elasticity and from there to the front ends of the winding shaft back support bands with increasing elasticity can be used over the length of Winding shaft as straight as possible, not deflected up or down, to achieve the course of the winding shaft regardless of the current thickness of the roll.

The support device may, in addition to the support elements which are provided to support the roll, additionally comprise a guide element, in particular a guide roller, which is provided when unwinding the Torbehanges of the winding shaft, the lateral edge of the door curtain in the upper insertion of the vertically extending edge guide to introduce for this edge of the door curtain, so to maintain a correct distance of the down running goal foil against the wall.

Such a guide element is preferably only useful in the adjacent to the edge of the door support device support, and in particular above the vertical edge guide facing axial end of the support device, in particular on the rest of the support device towards the edge of the door curtain out.

Preferably, such a guide roller should be arranged so that it does not get in any winding condition of the coil additionally in contact with the outer circumference of the roll.

So that the edge of the door foil itself does not drag in the vertical edge guide, sliding thickenings in the direction of movement of the goal foil can be fastened in the edge region of the goal foil whose thickness is greater than the thickness of the goal foil transverse to the goal plane, so that only these sliding thickenings in the vertical edge guide slidably abut.

Thus, the resulting winding in the edge region does not get larger diameter than in the central region, preferably the winding shaft is shorter in the width direction than the Torfolie, so that the Torfolie protrudes with the edge attached thereto sliding thickening in the width direction on the winding shaft and the sliding thickening lie in the latitude outside the winding shaft.

In particular, for this it is helpful if the thickness of the sliding thickening transversely to the goal plane is at most three times, better at most only twice the thickness of the goal foil.

In addition, the distances of the sliding thickening in the direction of movement, ie in the direction of the edge of the Torfolie should be set so that in the wound state in the same radial direction of the coil at most every third, better at most only every fourth winding a sliding Thickening is positioned radially in succession.

One way to minimize not only the sag of the roll, but also to compensate for the increasing thickness of the roll when winding, is a height adjustment by either the at least one support device or the end bearing assemblies for the winding shaft are designed to be movable in height, in particular movable attached to the wall.

In the following, only of bearing blocks instead of bearing arrangements is the speech in which the bearing pins of the winding shaft are mounted, without thereby the bilateral bearing device of the winding shaft should be limited to this type of storage devices.

Thus, for example, the most hollow winding shaft having a bearing in its end-side inner circumference, for example, a rolling bearing, in which axially projects from the free end of a fixed bearing pin or the like.

The first possibility of height adjustment are in height movable bearing blocks. The bearing blocks are then preferably freely movable in each case from top to bottom, preferably vertically, extending and in particular on the wall next to and / or over the door opening mounted bearing guides.

If, by increasing the thickness of the winding, the winding shaft is getting more and more distance to the underlying, in particular fixed in height, one or more applied to the winding support devices and moves upward, the laterally mounted on the winding shaft bearing blocks also move upward and during unwinding of the roll analog down, without the need for any control and active drive of the bearing blocks of the winding shaft along the bearing guides.

When in the axial direction a plurality of spaced support devices these - considered in the direction of the winding shaft - of course aligned and are in particular at the same height, so that the winding shaft with increasing thickness of the coil over the entire axial extent of the winding shaft evenly moves upwards, especially if the distance between the support devices is sufficiently low.

Preferably, the motor for driving the winding shaft is arranged so that this height movement of the winding shaft and its front ends for the drive of the winding shaft is not critical.

In the case of a motor which is connected to the winding shaft via a revolving tension element, in particular a drive chain, this can be achieved by a sufficient movement path of the tensioning element tensioner used in this case, in particular the chain tensioner.

It is also possible to attach the drive motor directly to the bearing block and to move together with this in height along the bearing block guide.

This is particularly useful when each of the two ends of the winding shaft is driven by a motor, and then both units of bearing block and attached motor have the same weight, since then the same weight on both free ends of the winding shaft. With a motor only on one side, so on a bearing block, it can be considered to attach to the other bracket a balance weight with the weight of the engine.

It goes without saying that, especially in this design, the winding support device adjacent to the end-side bearing arrangement should not be too far away from this support device, in particular less than 3 m, better still less than 2 m, better still less than 1.50 m, preferably less than one meter to avoid or at least minimize bowing of the winding shaft between this outermost support and the bearing assembly.

• Zum einen muss die Höhenverstellung der Stützvorrichtung in der Regel aktiv mittels eines Stützantriebes durchgeführt werden. Die Stützvorrichtung kann also durchaus in einer von oben nach unten, insbesondere vertikal verlaufenden, Stütz-Führung verfahrbar angeordnet werden, wobei das Verfahren jedoch aktiv bewirkt werden muss:
  • Eine Lösung besteht darin, mittels einer mechanischen Verbindung zwischen dem Antriebsmotor für die Wickelwelle und/oder der Wickelwelle selbst und der Stützvorrichtungen die Stützvorrichtung in der Höhe zu verfahren, also beispielsweise über eine parallel zur Wickelwelle verlaufende Antriebswelle für die Stützvorrichtungen, die einerseits mit den Stützvorrichtungen und andererseits mit dem Motor oder der Wickelwelle wirkverbunden ist.

The reverse, second possibility of a support device that is movable at least in height and height-mounted bearing arrangements for the end-face mounting of the winding shaft is more complex:

• On the one hand, the height adjustment of the support device usually has to be carried out actively by means of a support drive. The support device can thus be arranged to be movable in a top-down, in particular vertically extending, support guide, but the method must be actively effected:
  • One solution is to move by means of a mechanical connection between the drive motor for the winding shaft and / or the winding shaft itself and the support devices, the support device in height, so for example via a parallel to the winding shaft drive shaft for the support devices, on the one hand with the support devices and on the other hand is operatively connected to the motor or the winding shaft.

The other solution is that on the support devices, preferably on each support device, a support drive is present, such as a driven by an electric motor, then usually from top to bottom, threaded spindle or the like or another drive element, and this at least one support drive is controlled by a controller, for example, depending on the current thickness, ie the current diameter of the roll.

This can be determined, for example, either by a directly the current thickness of the winding - touching or non-contact - measuring sensor or by a defined initial state, for example, when fully unwound winding shaft, from a rotation angle sensor and / or revolution sensor (multiturn sensor) the previously from determined the winding shaft total turning angle and thus the thickness of the coil can be calculated by the controller.

Preferably, a synchronous height movement of all existing support devices will be provided, which then makes a common support drive for all support devices feasible.

Alternatively, in the case of a plurality of supporting devices provided in the axial direction of the winding shaft, an independent height adjustment of the individual support devices may be provided, for example depending on their distance in the width direction from the bearing blocks and / or depending on their distance from the center of the door curtain, ie the region of maximum deflection the winding shaft.

This seems to be nonsensical at first glance, because you want to keep the winding shaft straight. But only if all supporting devices from the beginning, so already rest against the empty winding shaft, a synchronous height movement of the support devices is the best solution.

If, on the other hand, no support of the roll is given at the beginning of the winding process, because the support devices are hanging lower, the winding first reaches the one or more central support devices with increasing winding, and then an individual height adjustment can make sense to achieve it first in that all supporting devices abut the winding in order to avoid an excessive initial bending of the angle.

list of figures

• 1a: eine Frontansicht auf ein Folientor nach dem Stand der Technik,
• 1b: eine Seitenansicht auf das Folientor gemäß Figur 1a, also betrachtet in axialer Richtung der Wickelwelle,
• 2a: eine Frontansicht auf eine erste Bauform eines erfindungsgemäßen Folientores,
• 2b: eine Seitenansicht auf das Folientor gemäß 2a,
• 3a: eine Frontansicht auf eine zweite Bauform eines erfindungsgemäßen Folientores,
• 3b: eine Seitenansicht auf das Folientor gemäß 3a,
• 3c: eine Schnittdarstellung in Seitenansicht auf das Folientor gemäß 3a,
• 4a: eine erste Variante einer Stützvorrichtung in der Seitenansicht mit einer symmetrischen Anordnung der Stützelemente
• 4b: eine Ausschnittvergrößerung aus 4a,
• 4c: eine erste Variante einer Stützvorrichtung in der Seitenansicht mit einer unsymmetrischen Anordnung der Stützelemente,
• 4d: in gleicher Blickrichtung die Antriebsvorrichtung für die Wickelwelle für die Stützvorrichtung gemäß 4c,
• 5: eine zweite Variante einer erfindungsgemäßen Stützvorrichtung in der Seitenansicht,
• 6: eine dritte Variante einer erfindungsgemäßen Stützvorrichtung in der Seitenansicht.

Embodiments according to the invention are described in more detail below by way of example. Show it:

• 1a : a front view of a foil door according to the prior art,
• 1b FIG. 1: a side view of the film gate according to FIG. 1 a, that is to say viewed in the axial direction of the winding shaft,
• 2a FIG. 2: a front view of a first design of a film gate according to the invention, FIG.
• 2 B : a side view of the film gate according to 2a .
• 3a FIG. 2: a front view of a second design of a film gate according to the invention, FIG.
• 3b : a side view of the film gate according to 3a .
• 3c : a sectional view in side view of the film door according to 3a .
• 4a a first variant of a support device in the side view with a symmetrical arrangement of the support elements
• 4b : a cut-out enlargement 4a .
• 4c a first variant of a support device in the side view with an asymmetrical arrangement of the support elements,
• 4d in the same direction the drive device for the winding shaft for the support device according to 4c .
• 5 FIG. 2 shows a side view of a second variant of a supporting device according to the invention, FIG.
• 6 : A third variant of a support device according to the invention in side view.

The 1a shows a foil door 1 in the prior art in front view, wherein 1b a partially sectioned side view along the line Ib-Ib shows, both for a known film gate according to Figure 1a, but also for the inventive designs of the film gate shown in the following figures 1 applies:

As the 1a, b show, is the essential part of a Folientores 1 one on a mostly horizontal plane, around its axial direction 4 ' rotatable, winding shaft 4 windable door curtain 2 , usually a goal foil 2 , with just one, the upper, end of the circumference of the winding shaft 4 is fixed and in the partially or completely unwound state due to gravity of the still on the winding shaft 4 located, from the Torfolie 2 existing wraps 14 hangs.

At the door curtain 2 It can also be a sectional door curtain 2 ' trade - as in 1a shown in the right half, where the sectional door curtain 2 ' out in the width direction B ' running, strip-shaped or strip-shaped sections 2.1 ' made of a little or hardly flexible material, such as plastic or metal profiles, which, in the direction of movement 10 the door curtain, usually the vertical, arranged one behind the other and are hinged together with their longitudinal edges.

The winding shaft 4 is above the door opening to be closed 50 at such a distance in front of the wall 51 in which the gate opening 50 is attached to this wall, that of the wrap 14 drooping goal foil 2 at a small distance in front of the wall 51 It does not hang down loosely, but with its lateral edges 9a . b in from top to bottom, on the wall 51 laterally next to the door opening 50 attached edge guides 9 is guided by her with her respective edge 9a . b in the - usually in the supervision considered U-shaped, the goal foil 2 open - guide profile of the edge guide 9 protrudes. The goal foil 2 can also be actively pulled down.

As 1a reveals, is the winding shaft 4 at their front ends in each case in a storage device 3a . b stored, which is also on the wall 51 is attached.

1a shows the foil door in the left half of the picture 1 in the closed state, ie in the door curtain 2 , especially the goal foil 2 , to the lower edge of the door opening 50 hangs. As the latitude range B , over which the door curtain in the width direction B ' extends, is greater than the width of the door opening 50 and extends beyond this on both sides, thereby the door opening 50 completely closed.

In this fully unwound state is only the upper end of the door curtain 2 on the outer circumference of the winding shaft 4 attached, but a wrap around the winding shaft 4 is usually no longer available in this state.

Is the door curtain from this closed state 2 , especially the goal foil 2 , on the winding shaft 4 wound up by the winding shaft 4 from a motor 7 in the winding direction about its axial direction 4 ' is rotated, so moves the bottom edge of the door curtain 2 increasingly upwards, and it forms a winding on the winding shaft 14 with increasing thickness, in the fully wound state - ie when the lower edge of the door curtain 2 close to or above the gate opening 50 is, but usually just within the edge guide 9 - the wrap 14 a maximum diameter D , in particular measured in the horizontal direction, has.

The right half of the 1a shows the foil door 1 in such a partially open position, ie in the door curtain 2 partly already on the winding shaft 4 is wound up and there a wrap 14 forms.

In partially or completely wound state, the winding shaft 4 between the two bearing arrangements 3a . b due to the dead weight and the weight of the hanging door curtain 2 , in particular the goal foil 2 , sag, as in the right half of the picture 1a shown.

Of course, the weight of the door curtain depends 2 even in the almost completely unwound state on the winding shaft 4 , so theoretically even in the closed state of the gate, the winding shaft 4 can sag.

Often the door curtain is 2 however, so stiff that in case of a closed state of the foil gate 1 on the underground seated lower edge of the door curtain 2 the winding shaft 4 no longer has to carry the entire weight of the door curtain, and thus less or not at all sagging against the partially or fully opened state of the Folientores 1 ,

This also applies to a goal foil 2 if, for example, the goal foil towards the goal plane 1' , ie the main plane of the unwound part of the goal foil 2 , has sufficient inherent rigidity.

This is at Torfolien 2 , which can currently have up to 5mm thickness, quite the case, and certainly, if it is the door curtain 2 to a sectional door curtain 2 ' is.

The on a winding shaft 4 wound sections 2.1 of such a sectional door curtain 2 ' form a round from the outer circumference not completely round 14 but a wrap 14 However, with an outer circumference contour in the form of a polygonal course, based in the closed state of the film gate well on each other, when the bottom section 2.1 is seated on the ground.

Because a deflection of the winding shaft 4 and the forming thereon 14 Limited acceptable - otherwise taunting the door curtain 2 , Jamming during winding and unwinding or other problems can occur up to the breaking of the winding shaft 4 - Was in such a solution of the prior art, the width B of the door curtain 2 . 2 ' limited and thus the width of the door opening 50 ,

In order to overcome this limitation, according to the invention, the winding shaft 4 in the width direction B ' between the frontal bearing assemblies 3a . b the winding shaft 4 additionally supported by means of at least one, often several, in the width direction B ' spaced support devices 5 ,

In this case, the support device 5 only on the winding 14 and not directly on the winding shaft 4 attack what the problem entails that the wrap 14 becomes increasingly larger with increasing winding diameter, and thus the distance between the winding shaft and the support device 5 also. In a very thin Torfolien 2 and small height of the door opening, this may still be acceptable, with a large difference between the diameter of the unwound winding shaft 4 and the fully wound winding shaft 4 that is the diameter D the maximum size of the roll 14 , a compensation option must be found here.

2a, b shows a first possibility, namely the one or more support devices 5 - of which in the latitude B of the door curtain 2 Here are shown several different, while in practice usually in several adjacent support devices 5 always the same support devices 5 will be available - the support devices 5 on the wall 51 fastened in height not adjustable, usually bolted, are.

In contrast, at the front end portions of the winding shaft 4 existing storage arrangements 3a . b in height, usually the vertical 10 , movable, here slidable along a top-down, usually vertical, bearing bearing guide 12 :

As a bearing arrangement 3a . b Here is one from the winding shaft 4 each protruding bearing pin 4a . b shown, which is rotatably connected to the winding shaft 4 and rotatably in a bearing block 3a . b is included. The bearing block 3a . b is in each case in one of the bearing guides 12 movable, special freely movable.

If with increasing thickness of the coil 14 the winding shaft 4 and thus also the axial direction 4 ' the winding shaft 4 from the support element 30 the support device 5 moved upward away, the bearing assembly, ie in particular the bearing block 3a . b follow, so that the winding shaft 4 does not bend and can remain straight overall.

In 2a it can also be seen that the support elements 30 the support devices 5 in the area, preferably always in the area, in the width direction B ' are positioned in which one in the direction of movement 10 existing weld 6 ' in the goal foil 2 is present, which has a greater thickness than the Torfolie 2 even.

In 2a is also to recognize that the goal foil 2 in the width direction B ' is wider and on both sides protrudes over the winding shaft 4 , and in this lateral projection along the edges 2a . b the goal foil 2 in the direction of movement 10 spaced sliding thickening 40 are arranged, preferably in cross-section U-shaped and attached to the edge 2a . b that are thicker than the goal foil 2 , This is achieved - as in 4a to recognize - in the edge guide 9 standing next to the gate opening on the wall 51 is attached, only the sliding thickening 40 Sliding abut, so the goal foil 2 not even from the edge guide 9 can be damaged.

At this point it should be made clear that the direction of movement 10 the unwound part of the door curtain 2 , such as the goal foil 2 , as a rule, the vertical is because the wall 51 , and especially that side of the wall 51 where the foil door 1 is mounted, just usually runs vertically.

However, the invention should not be limited thereto, because such a film gate 1 can also be on a sloping or even horizontal wall and thus door opening 50 be attached, the direction of movement 10 of the unwound part of the goal foil 2 usually by the attached to this oblique or even horizontal wall and extending parallel to this edge guide 12 for the goal foil 2 is determined.

The term "vertical" should therefore primarily the respective direction of movement of the door curtain 2 reproduce, and only in particular the direction of gravity.

The second possibility of height compensation is in the 3a, b shown and is that the bearing assemblies 3a . b So, for example, the bearing blocks 3a . b , stationary, ie in particular in the height is not adjustable, on the wall 51 are fixed, the support devices 5 on the other hand are adjustable in height, especially in height adjustable on the wall 51 are attached.

In the presentation of the 3a are the support devices 5 each separately, ie individually, in support guides 12 ' be displaced in height, but could also all support devices 5 a winding shaft 4 be displaced together as a unit in height, in particular along marginal support guides 12 ' ,

Because despite the increasing thickness of the coil 14 when winding the winding shaft 4 - Which is detected by a sensor 16 that either the revolutions of the engine 7 counts or non-contact scans the thickness of the coil 4 in the radial direction, for example, attached to the upper leg of the support hook 35 for the support elements 30 - And also their axial direction 4 ' unchanged, in particular horizontal, should remain, with increasing thickness of the coil 14 the one or more support elements 30 the support devices 5 to be moved downwards to the correct extent.

A variant of a defined active height adjustment of the support devices 5 show the 3b, c as well as the right end of the 3a :

It is in the support guides 12 ' Guided, mostly straight part of the carrying hook 35 for the support elements 33 or the hook-shaped support element 30 such as the support tray 31 ' , with a rack 13b equipped, extending in the direction of the support guide 12 ', usually the direction of movement 10 of the door curtain 2 , extends and with a pinion 13a combs. Several such sprockets 13a are on a parallel to the winding shaft 4 extending drive shaft 38 arranged and combed with one of the racks 13b the support hook 35 or other support devices 5 ,

The drive shaft 38 for the backup drive 13 has, preferably at one end, a drive shaft pinion 38a, which also rotatably with the drive shaft 38 connected as the individual pinions 13a ,

The drive shaft pinion 38a is - in this case by means of the same chain 36, which also on the bearing pin 3b of the winding shaft 4 rotatably mounted shaft pinion 43 drives - from the engine 7 powered out of the winding shaft 4 rotated by the relation of the sizes of the drive shaft pinion 38a to the pinions 13a at the individual support devices 5 the desired ratio between the angle of rotation of the winding shaft 4 and the linear movement of the support devices 4 in height, so along the support guides 12 ' , is determined.

Because the winding shaft 4 and the non-rotatably mounted pinion as well as on the monitor 7 fixed sprockets are fixedly mounted, but the height position of the drive shaft pinion 38a changes, is in a chain drive between the pinion 38a and the motor 7 a chain tensioner 37 or another compensating element necessary, the all-round on all three pinions chain 36 always looking forward.

The support devices 5 themselves can be designed very differently, which is the winding 14 supporting support element 30 the support device 5 on the rotating circumference of the coil 14 either only sliding or mitbewegend with this, in particular on this rolling, may be formed:

The simplest solution is of course a sliding support element:

So is in 6 in the side view and in 2a in the middle area a support hook 31 (with a small extension in the axial direction 4 ' the winding shaft 4) and a support trough 31 ' (with much larger extension in this direction):

As 6 shows, it is a example bent sheet metal part, which forms an upwardly open pan in the support area with a in the axial direction 4 ' the winding shaft 4 and thus direction of this support trough 31 ' consistent, concavely curved contour of the top, in which the winding 14 - in 6 in different thickness states 14.1 - 14.3 shown - rests. This will move the center of the roll 14 and thus the axial direction 4 ' the winding shaft 4 from the bottom of the support trough 31 ' away increasingly up, which is due to the height-adjustable bearing arrangements 3a . b is compensated.

As 6 As a rule, it must be possible - with a uniform curvature of the concave top of the support trough 31 ' - The radius of curvature of this concave top be greater than the radius of the largest recorded therein winding, eg 14.3. This increases - in the transverse direction 11 to the goal level 1' - With increasing thickness of the roll 14, the contact area between the winding 14 and the bottom of the channel-shaped support region of the support trough 31 ' ,

That from the wall 51 opposite end of the channel-shaped support region of the support trough 31 ' is extended upward with a preferably straight leg, which at its upper end in goes over a horizontal leg, up to the wall 51 ranges and attachment to the wall 51 above the gate opening 50 - As shown fixed or movable in height - is used.

The one from the wrap 14 withdrawn goal foil 2 that here with its edge in the edge guide 9 and its upper insertion opening 9a must run - is, depending on the dimensions - on the free and rounded for this purpose end edge of the support area of the support trough 31 ' slide.

So the goal foil 2 without friction at the edges of the insertion opening 9a as central as possible - viewed in the axial direction as in 6 shown - in the edge guide 9 enters, can at the support tub 31 ' at the appropriate position in the transverse direction 11 , preferably just above the insertion opening 9a on the wall 51 opposite side of the goal foil 2 in addition a guide element, in particular a rotatable guide roller 8th , be attached, whose axis of rotation parallel to the axial direction 4 ' the winding shaft 4 extends, and at the adjacent the Torfolie 2 goes down.

Instead of an actively controlled drive the height adjustment of the support devices 5 can the support element 30 the support device 5 also by means of spring force in height movable eg on the wall 51 be fixed by, for example - as based on the support trough 31 ' in 3a shown - the support element 30 or the entire support device 5 by means of a spring 39 towards the plant on the winding 14 is biased:

In the case shown is the support tray 31 ' on a tension spring 39 or several such tension springs suspended at a fixed point, here a crossbar between the two-sided support guides 12 ' , is attached. As the thickness of the coil increases, the coil presses 14 the support element 30 down, the wrap 14 but still depends on the spring force of the spring 39 from bottom to top with a supporting force, the spring force, applied.

Instead of a suspension on a tension spring 39 would also be the arrangement of a compression spring on the underside of the support element 30 or the support device 5 possible.

Often the wrap 14 however, whether sliding or co-moving, at several, over the lower half of the circumference of the roll 14 distributed arranged support elements 30 supported.

A typical design with symmetrical distribution of the support elements 30 to the vertical plane 4 ' are the in 4a, b as well as in 2a in the left support device 5 shown, in the axial direction 4 ' extending, rotatable about this direction, support rollers 33 or fixed support blocks 32 as support elements 30 , the both sides each to the winding 14 under-reach carrying hook 35 attached - rotatably mounted at the support rollers 33 - are.

The two-sided carrying hooks 35 have it similar to the support tray 31 ' or the support hooks 31 - A lower curved and upwardly open support area and a wall-facing away from the end of the support area up to the winding 14 passing over the attachment leg, which is above the reel 14 is wound up and to the wall 51 runs and with the carrying hook 35 on the wall 51 is attached.

As a rule, between two in the width direction B ' complained such carrying hook 35 either only moving, in particular rotating, support rollers 33 or just sliding on the winding 14 adjoining support blocks 32 be arranged, the fixed and not rotating or otherwise movable on the suspension hook 35 are attached.

4a points in the direction of the axial direction 4 ' that is the winding axis 4 ' that in this case a total of four support elements 30 , usually four rotatable support rollers 33 , symmetrical to the vertical plane 4 ' are arranged, in the form of a lower-lying pair and an overlying higher-lying pair of such support elements 30 :

Here are the two lowest lying support elements 30 , in particular supporting rollers 33 , Preferably at the same height horizontally in the transverse direction 11 juxtaposed, and symmetrical with respect to the vertical plane 4 ' opposite and with the same diameter d33 preferably in a certain size range in relation to maximum thickness D of the roll 14 should lie.

It is important, above all, that the free distance 15 between these two lowest support elements 30 , in particular supporting rollers 33 , smaller than twice the thickness of the winding shaft 4 but at least smaller than the simple thickness of the winding shaft 4 in order to also at the beginning of winding, if under circumstances the winding shaft 4 directly and without a door curtain in between 2 on these two support elements 30 , in particular support rollers 33, is applied, can not hang between them.

The rotatable support rollers 33 Although they can be actively driven, they are preferably only by the friction of the roll rolling along it 14 set in rotation.

As 4a can be seen, is the beginning of the winding thicker winding 14 initially only on these two lowest support elements 30 , in particular supporting rollers 33 , on and only from a certain diameter, shown here on Bewicklungszustand 14.3, is the winding 14 at the other, higher lying support elements 30 , in particular supporting rollers 33 , and would no longer at the two lowest support elements with further increase in the diameter 30 but stand out from them.

During the winding 14 as long as it still has a relatively small diameter, through the two lower support elements 30 is well centered, since he is still relatively far between these two support elements 30 dips, this immersion is with increasing diameter of the coil 14 ever smaller and thus also the centering effect of the lower support elements 30 or support rollers 33 , then from the top two support elements 30 in particular support rollers 33 , is increasingly being adopted.

4a also makes it clear that between these two offset pairs of support elements 30 another middle pair could be arranged, and could be positioned so that the thicker wrap 14 initially only with the lower pair, then - initially additionally - with the middle pair and then only with the upper pair of support elements 30 , in particular supporting rollers 33 , in contact.

Therefore, the arrangement of pairs of support elements 30 , in particular supporting rollers 33 , at different heights and symmetrical to the vertical plane 4 "through the axial direction 4 ' the winding shaft 4 useful in which the thicker winding 14 successively first with the lowest and then with the next higher and then in turn by the next higher pair of support elements 30 , in particular supporting rollers 33 , in contact device and supported, but of course all always rest only in the lower half of the circumference of the coil.

As in this process, the radius of curvature of the convex peripheral surface of the winding 14 As it grows larger, it can also make sense from the lowest to the ever higher support elements 30 or pairs of support elements 30 , in particular supporting rollers 33 whose convex radius of curvature change their contact surface, in particular from bottom to top also increase.

4b shows in this side view in an enlarged view the function of in the 1a visible in the front view wear belts 6 on the wall 51 facing back of the door curtain 2 , in particular the goal foil 2 , may be present:

Because this makes contact only between the support element 30 and the wear belt 6 , and not directly to the door curtain 2 , which is particularly useful if, as a support element 30 no co-rotating, on the eg wear belt 6 rolling, supporting element 30 is used but a not mitbewegendes, sliding fitting support element 30 such as a support block 32 ,

In 4a is additional - what of the rest of the training of the support device 5 is independent - a rotatable guide roller 8th whose axis of rotation is parallel to the axial direction 4 ' the winding shaft 4 runs, shown here as the preferred solution to the rest of the support device 5 , here at the carrying hook 35 , attached:

The leadership 8th is located - with a view in the transverse direction 11 as in Figure 1a - near the edge 2a . b of the door curtain 2 , especially already in the width range of the edge guide 9 , and above the upwardly open insertion opening 9a this edge guide 9 in such a position in the transverse direction 11 to the goal level 1' that with its front on the leadership 8th adjoining edge region of the goal foil 2 or the sectional door curtain 2 ' about this leadership 8th is guided, so it rests against this, and from there to vertically down exactly in the edge guide 9 is initiated without at the edges of the insertion opening 9a to scrub.

Accordingly, the arrangement of such a leadership role 8th only on that support device 5 makes sense, the front end of the winding shaft 4 is closest, and of course only on that side of the support device 5 that is the front end of the winding shaft 4 and thus the edge 2a . b the door curtain 2 "faces.

Considered according to 4a in the axial direction 4 ' is the leadership 8th slightly closer than the top, the trigger side, so in this case wall-side, support role 33 to the wall 51 arranged and preferably above this uppermost wall-side support roller 33 , This is necessary because it must be avoided that these wall side top support role 33 with the in the edge guide 9 down part of the goal foil 2 comes into contact, since this two acting in opposite directions friction forces on this wall top support roller 33 would result.

The term "above" herein and throughout the application to rotating support elements means that the axis of rotation of one is above the other, and with non-rotating support elements, this refers to the top of your perimeter viewed in the axial direction.

As 4a Further, it is easy to see causes the increase of the thickness of the coil 14 , So from Bewicklungszustand 14.1 to, for example Bewicklungszustand 14.3, a vertical displacement of the axis 4 ' the winding shaft 4 , which corresponds to exactly exactly half of the increase in thickness.

4c In contrast, shows a typical design with asymmetrical distribution of the support elements 30 to the vertical plane 4 ' in the same view as 4a :

Analog formed too 4a Here are the support elements 30 So support block 32 or support rollers 33 and also the leadership 8th , in viewing direction at its front and rear end face on each one of two support devices 35 , In particular the illustrated support hooks 35, attached, the support rollers 33 and the leadership 8th rotatably mounted thereon.

In contrast to 4a are the two support rollers 33 on which the wrap 14 rests, not at the same height, but the axis of rotation 33 ' the wall-side support roller 33 , at the same time the trigger-side support role 33 is higher than that of the other support roller 33 ,

The wrap 14 who is on both supporting role 33 rests, and by the winding becomes increasingly larger, is - in the direction of the 4c uniform winding and therefore centric in the winding 14 sitting winding axle 4 ' provided - with larger winding 14 , 14.1, 14.2, 14.3 the winding axis 4 ' . 14 .1 ', 14.2', 14.3 'do not move vertically, but along a plane of motion 44 " connecting the vertical median plane to a connection plane 42 " which is represented by the two axes of rotation 33 ' the two support rollers 33 runs.

The movement plane 44 " So has an upward increasing distance from the wall 51 ,

Due to the higher position of the wall-side support roller 33 So is the in the withdrawal direction of the goal foil 2 on the wrap 14 applied force opposed to increased resistance.

As with this solution, the bearing blocks 3a . b the winding shaft 4 must be able to move with their displacement are, according to Figure 4d - analogous to 2 B trained - the bearing blocks 3a . b on both sides along each camp guide 12 displaceable from top to bottom, but according to 4d no longer in the vertical, but along a parallel plane 44 "' to the movement plane 44 " ,

Also in the solution according to 4c is the leadership 8th closer to the wall and slightly higher than the wall side of the two support rollers 33 arranged.

The 5 shows - again in the direction of the axial direction 4 ' the winding shaft 4 - A support element 30 in the form of an endless, annularly closed support band 34 which is about two in vertical plane 4 ' preferably mutually symmetrically opposed support rollers 33 is guided. The wrap 14 is shown in different Bewicklungszuständen 14.1 to 14.3 and is on top of the upper run of the support band 34 on. In the width direction B ' is the support band 34 preferably about the same width - see 2a on the right support 5 - Like the supporting rollers 33 ,

In 5 is a solution with a circumferential direction of the endless support belt 34 elastic, so stretchable, support band 34 shown.

Here is the circulation length of the endless circumferential support band 34 so dimensioned that when driving around the two, preferably lying approximately at the same height, support rollers 33 Upper strand and lower strand preferably stretched or at least almost taut, so sag little.

In the uppermost support band state shown 34.1 is the arrangement of the support rollers 33 and the tension of the support band 34 chosen so that the not yet or little wound winding shaft 4 already against the top of the upper strand of the support band 34 pushes, but only so far pushed through that it preferably not even the just strained lower strand of the support band 34 reached.

With increasing thickness corresponding to the Bewicklungszustände 14.1 to 14.3 presses the winding 14 the upper strand continues through and of course against the lower strand, if the support band 34 is sufficiently stretchable until the wrap 14 Finally, on the support rollers 33 itself rests, only with the intermediate upper strand of the support band 34 ,

If then the thickness of the coil continues to increase, will - because the support rollers 33 stationary on the carrying hooks carrying them 35 are attached - as in 2a shown, which were not shown here for reasons of clarity - and thereby the winding shaft 4 moved further upwards.

In 5 a situation is shown in which, despite increasing the diameter of the coil 14 from Bewicklungszustand 14.1 to 14.3 the altitude of the winding shaft 4 remains unchanged, so the thickness increase of the coil 14 just through the optionally due to the increasing weight of the roll 14 increasing elongation of the support band 34 and whose deflection is compensated downwards.

This is the desired ideal case, because then - analogous to one on a spring 39 according to 3a suspended support element 30 - A höhenverlagerbare bearing arrangement 3a . b is dispensable for the winding shaft 3.

Because such an exact match between extensibility of the support band 34 and diameter increase of the coil 14 However, it is difficult, with increasing winding the central axis 4 ' not remain unchanged but move upwards.

On the other hand, one uses a barely stretchable, so to speak, rigid, support band 34 , so its circulation length would be chosen so that it sags already in the unloaded state, because only sufficient sag results in a sufficient centering effect for the then resting thereon winding 14 one, no matter if this from the beginning or only from a certain Bewicklungszustand on the support band 34 rests.

Also the support band 34 is preferred solely by the friction of the roll rolling along it 14 driven in the direction of rotation, although driven support rollers 33 about which the support band 34 as pulleys running, would be possible, but this greatly increases the construction costs.

Deviating from the solution of 5 - At the clear distance between the support rollers 33 less than the thickness D of the largest possible condition of the winding 14.3 - can support rollers 33 also spaced further apart than this largest diameter D so the wrap 14 regardless of its Bewicklungszustand always only on the upper strand of the support band 34 rests and the support rollers 33 , even with the interposition of the upper strand, not reached.

This solution is especially to be preferred when the door curtain 2 in his direction of movement 10 does not have a constant thickness, because, for example, in the direction of movement 10 spaced thickening elements such as horizontally extending stiffening strips in the door curtain 2 incorporated or placed on this.

5 further shows that the support band 34 could not only circulate over two support rollers 33, but also via a third interposed deflection roller, which should then be variable and adjustable preferably in height, in particular in the vertical, and as a tension roller 41 can serve.

In particular, in this context, it may also be appropriate that the distance, in particular in the transverse direction 11 , between the two upper support rollers 33 can be varied, ie in particular the wall facing away from the supporting role 33 in the transverse direction 11 can be adjusted, for example, in adaptation to a changing depending on the application maximum diameter D of the roll 14 ,

Also in 5 is a leader 8th additionally marked as based on the 4a illustrated above and closer to the wall with respect to the top wall support roller 33 positioned out of the in 4a explained reasons.

LIST OF REFERENCE NUMBERS

1

foil-sheet

1'

door plane

2, 2 '

Door curtain, foil

2.1 '

section

2a, b

edge

3a, b

Bearing device, bearing block

4

winding shaft

4 ', 4.1'

Axial direction, shaft center, winding axis, winding center

4 '

vertical plane

4a, b

Bearing element, bearing journal

5

support device

6

Wear Belt

6 '

Weld

7

engine

7 '

control

8th

Guide element, guide roller

9

Edge leadership

9a

Insertion opening

10

Vertical, direction of movement, longitudinal direction

11

Transverse direction to the goal level

12

Bearing guide

12 '

Supportive leadership

13

support upload

13a

pinion

13b

rack

14

reel

14.1 / 2/3

Bewicklungs state

15

free distance

16

sensor

30

support element

31

support hooks

31 '

support tub

32

support block

33

supporting role

33 '

axis of rotation

34

support band

34.1, 34.2

Support Ribbon status

35

Carrying device, carrying hook

36

Chain

37

chain tensioner

38

drive shaft

39

feather

40

Sliding thickening

41

idler

42 "

connection-level

43

pinions

44 "

movement plane

44.1 "

parallel plane

50

door opening

51

wall

B

Width, width of the door curtain

B '

width direction

D

Diameter of the fully wound coil

d4

Diameter winding shaft

d33

Diameter support roller

Claims (24)

Folientor (1) for closing a door opening (50) in a wall (51) with - a door curtain (2, 2 ') of a Torfolie (2) or sections (2.1') of a sectional door curtain (2 '), - a winding shaft ( 4) for winding the door curtain (2, 2 '), - two bearing devices (3a, b), in particular bearing blocks (3a, b), for supporting the end bearing elements (4a, b), in particular bearing journals (4a, b), the Winding shaft (4), - a motor (7) for controlled driving of the winding shaft (4), characterized in that - between the bearing blocks (3a, b) in the width region (B) of the door curtain (2, 2 ') at least one supporting device ( 5) is present for supporting the winding shaft (4), in particular of the winding around the winding shaft (4) around hanging-coil (14). Folientor after Claim 1 , characterized in that the supporting device (5) with at least one support element (30) contacting the winding (14), in particular in the lower half of the circumference, rests. Folientor according to one of the preceding claims, characterized in that the support element (30) slidingly or with moving, in particular synchronously with moving, the door curtain (2, 2 '), in particular on the outside of the outermost layer of the roll (14), is applied , (Sliding) Folientor according to one of the preceding claims, characterized in that the sliding support element (30), viewed in the axial direction (4 ') of the winding shaft (4), either hooked over a circumferential segment in the lowermost region of the circumference of the angle (14) as a support hook (31) and has a concave, upwardly facing support surface whose radius of curvature is in particular greater than the radius of the fully wound roll (14), • or at several points of the circumference of the roll (14) in the lower half of individual sliding support elements as Supporting blocks (32) are arranged, in particular symmetrically to the vertical plane (4 ") by the axial direction (4 ') of the winding shaft (4). Folientor according to one of the preceding claims, characterized in that the support hook (31) has an extension in the axial direction (4 '), the at least half, better at least the simple, better at least twice, the diameter (D) of the fully wound coil (14), and in particular by a support trough (31 ') forms. Film door according to one of the preceding claims, characterized in that - the door curtain (2, 2 '), in particular on its in the direction of the wall (51) directed back, in the longitudinal direction (10), the direction of movement, the door curtain (2,2') extending at least one wear belt (6) in the width region of the support element (30), - wherein the wear belt (6) at least one point on the door curtain (2, 2 ') is fixed. (with moving) Folientor according to one of the preceding claims, characterized in that - the moving support element (30) is a support roller (33) whose axial direction (33 ') is approximately parallel to Axial direction (4 ') of the winding shaft (4) is arranged and / or - an endlessly circulating support belt (34), which in particular circumferentially around a plurality of support elements (30), in particular not mitbewegende support blocks (32) or rotatable support rollers (33), is arranged. Folientor according to one of the preceding claims, characterized in that at several points of the circumference of the roll (14), preferably in the lower half of a, preferably straight, number in particular mitbewegender support elements, in particular support rollers (33) is arranged, - either symmetrically to the vertical plane (4 ") through the axial direction (4 ') of the winding shaft (4) in the form of at least a first, lowest pair of support elements with a preferably even number of support elements - or asymmetrically to the vertical plane (4") through the axial direction (4'). ) of the winding shaft (4) with a preferably odd number of support elements. Folientor according to one of the preceding claims, characterized in that with more than two, in particular four, support elements (30) along the circumference of the roll (14), the support elements (30) are arranged so that the winding (14) initially with increasing movement in direct contact with or via an intermediate support band (34) indirect contact with the two supporting elements (30) closest to the vertical plane (4 ") and only upon further wrapping with the at least one support element further away from said vertical plane (4") (30). A foil door according to one of the preceding claims, characterized in that the moving element (30) which is furthest away from the vertical plane (4 ") in the transverse direction (11) is arranged such that it is independent of the winding state of the winding shaft (4). is out of contact with the peeled part of the goal foil (2) Foil door according to one of the preceding claims, characterized in that in two support elements (30), in particular support rollers (33), over which the support belt (34) rotates, - the support elements (30) are arranged so that they only towards the end of the winding the Torfolie (2) or in no Aufwickelzustand on the winding (14) with the interposition of the support strip (34), but only on the upper run of the support band (34) rests between the two support elements (30) and / or - the distance between the two Support elements (30) in particular in the transverse direction (11) is variable and in particular adjustable, and / or - a on the inside of the lower run of the support belt (34) fitting and in their distance to at least one of the two support elements (30) variable and in particular adjustable tension roller (41) is present. A film door according to one of the preceding claims, characterized in that the support band (34) has a defined extensibility, and in particular in the width direction (B) a plurality of spaced apart arranged support devices (5) with support bands (34), the extensibility of the support bands (34) in the individual support devices (5) increases from the middle region of the width region (B) to the lateral edges (2a, b). (generally) A film door according to one of the preceding claims, characterized in that - the support device (5) at least one guide element (8), in particular a guide roller (8), between the winding (14) and the upper insertion opening (9a) in the vertical edge Guide (9) for the edge (2a, b) of the door curtain (2, 2 '), - in particular when the support device (5) in the width range of the front end (4a, b) of the winding shaft (4) adjacent supporting device (5) is. Foil gate according to one of the preceding claims, characterized in that the at least one support roller (33) and / or the at least one support band (34) has an extension in the axial direction (4 '), the at least half, better at least the simple, better at least twice the diameter (D) of the fully wound roll (14). A film gate according to one of the preceding claims, characterized in that the at least one support roller (33) has a diameter (d33) which is at least 3%, better at least 5%, better at least 7%, better at least 9% of the diameter (D). of the fully wound roll (14) corresponds to - and / or at most 100%, better at most 80%, better at most 60%, better at most 35% of the diameter (D) of the fully wound roll (14). A film door according to any one of the preceding claims, characterized in that the diameter of a support roller (33) is between 0.3 times and 5.0 times, more preferably between 0.5 times and 3.0 times, the Diameter (d4) of the winding shaft (4) is. Film door according to one of the preceding claims, characterized in that at least two in a supporting device (5) existing support rollers (33) which lie directly on the winding (14), the free distance (15) between the two lowest support rollers (33) measured transversely to the door plane (1 '), is smaller than the diameter (d4) of the winding shaft (4) Folientor according to one of the preceding claims, characterized in that - the support device (5) in the width direction (B ') is positioned so that in the Torfolie (2) in the direction of movement (10) extending wear belt (6) and / or Welded seam (6 ') on the support element (30) and rests - in particular only on the wear belts (6) and / or welds (6') support elements (30). Folientor according to one of the preceding claims, characterized in that - in the width direction (B) the Torfolie (2) on both sides over the winding shaft (4) and in the broad region of the supernatant on the Torfolie (2) sliding thickenings (40) are arranged whose thickness transversely to the goal plane (2 ') is greater than the thickness of the goal foil (2), but in particular at most three times as large and - in the direction of movement (10) of the goal foil (2) the sliding thickenings (40) on the goal foil (2) are positioned so that in the wound-up state in the same radial direction, only a maximum of every third, more preferably only every 4th winding a sliding thickening (40) is arranged radially in succession. (Height adjustment) Foil gate according to one of the preceding claims, characterized in that either the at least one supporting device (5) or the bearing device (3a, b). in particular, the bearing blocks (3a, b) in height, in particular in the vertical (10), are movably mounted on the wall (51). (height-adjustable winding shaft bearing device) Folientor according to one of the preceding claims, characterized in that at a height-movable bearing block (3a, b) - the bearing block (3a, b) is guided freely movable in a top-bottom bearing guide (12), - and in particular the Course of the bearing guide (12) of the direction of movement of the winding axis (4 ') with in the diameter-changing, on the at least one support member 30 resting, winding (4). and / or - the motor (7) on the bearing device (3a, b), in particular the bearing block (3a, b) is fixed and moves in height with the winding shaft (2) with. (movable support device) Folientor according to one of the preceding claims, characterized in that in a vertically movable support device (5) the support device is controlled by a support drive (13) in height, in particular along a support guide (12 ') wherein the support drive (13) in particular • consists either of a mechanical connection to the motor (7) and / or the winding shaft (2) • or of an all movable elements of the film gate (1), in particular the motor (7), controlling control (7 ') is controlled in dependence on the by means of at least one sensor (16) detected actual diameter (D) of the coil (14). Folientor according to one of the preceding claims, characterized in that - in the case of several vertically movable support devices (5), the at least one support drive (13) is designed so that it can move the support devices (5) all synchronously, and - in particular, all existing movable ones Support devices (5) by a common support drive (13) are driven. Foil-sheet according to any one of the preceding claims, characterized in that the individual supporting devices (5) are independently adjustable in their height position.

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