EP0675261B1 - Roller door with flexible door leaf - Google Patents

Description

The invention relates to a roller door with a flexible door leaf that is on a top the gate opening rotatably mounted, drivable winding shaft can be wound on the a balancing torque to balance the weight of the hanging door leaf acts, with a quiet attached to the lower end of the door leaf, the two ends are provided with holding pieces on which are mounted on rollers mounted in the floor area running and the door leaf exciting ropes are attached, and with the door opening laterally delimiting, consisting of profiles, the vertical slots into which the side edges of the door leaf protrude.

In a roller door known from DE-A-34 11 664, for example, the one specified at the beginning Kind is that which runs off the winding shaft and is wound onto it Door leaf through at the ends of the bar closing the door leaf downwards, ropes that protrude laterally into the boundary profiles of the roller shutter curtains taut, the one attached to the winding shaft or rotatably mounted on it Winding drums are wound up and unwound, the tension of the Tensioning ropes with torsion springs or pulley-like reeving of the tensioning rope is generated with a bottom block acted upon by spring force and additionally Resilient compensation devices are provided to compensate for the path differences to compensate for the different winding diameters of the wound Roller door and the tensioning cables or - wound on the winding drum straps results.

In the case of usually high-speed roller doors of the type specified at the beginning Art can happen that the gate of this passing Vehicles especially in the area of the lower end strip is approached so that it is damaged and fails and expensive repairs are required. To such damage to keep it low when starting up the roller door, it is known the bottom end strip of the door leaf, the ends of which in the slots of the profiles laterally delimiting the gate opening are to be provided with predetermined breaking points. Occurs damage of the gate as a result of a start, this can be done then relatively easy and quick repair.

A roller door known from DE-C-40 07 280 avoids predetermined breaking points and damage to the door leaf in the event of a start in that the slots in the side profiles gripping ends or guide pieces of the closing the door leaf Last made of a highly elastic material, so that the end areas of the end strip from the damage-free Slits in the side profiles can emerge when the Bar, for example in the event of a start-up, with a corresponding high lateral force is applied. However, the lower one End strip from the side guide slots of the side profiles pushed out, the side edges also kick of the door leaf out of the slots and lose their leadership, so that at least the lower end of the door leaf in uncontrollable Can swing out and flutter. To the gate after a crash back to its usable condition bring, it is therefore necessary to end the end profile and the side edges of the door leaf back into the guide slots to introduce lateral profiles, which is proportionate can be expensive. To facilitate this insertion of the end strip and the side edges of the door leaf in the Guide slots after a crash, it is from DE-C- 40 07 280 and DE-U-93 14 952 known, the upper ends of the slot-like guides to be provided with funnel-shaped extensions.

Apart from the difficulty with the well-known roller shutters in the so-called "crash version" the end strip and the side edges reinsert the door leaf into the guide slots, these have the disadvantage that the end strip for tightening of the door leaf in the event of an impermissibly high level Can not deflect lateral forces on the end profile, because the Leaf tension on extensions protruding into the side support of the final profile acts. In order with known roller doors in so-called "Crash version" nevertheless keep the trough taut to be able to, the end strip must be made correspondingly heavy so that it is sufficient to tighten the door leaf Has weight.

The object of the invention is therefore a roller door of the type specified To create the way in which the door leaf closes In the event of impermissibly high transverse forces can swing out without damage and where the gate after one Swing out the end strip quickly and easily again in its normal operating position can be brought without tightening the door leaf can be dispensed with by tension cables acting on the end strip got to.

According to the invention, this object is achieved with a roller door of the generic type Art solved in that the necessary for leaf tension Tension cables no longer in the rope gate supports Appropriate shots of the end strip are attached instead on holding pieces of the end profile, which are not on the side protrude more into the side profiles.

According to an advantageous embodiment it is provided that in a slide slidably guided vertically for each of the profiles is on its holding part that protrudes the profiles towards the center of the door between top and bottom with one end each Ledge connected holding pieces is bordered such that the Holding part can only emerge laterally between these, and that each tensioning cable is connected to an upper end region of the bar and through a channel or gap in the sled the bottom pulley runs.

The sled provided in this embodiment is improved the management and stabilization of the final profile and ensures that the pull cables in the side slots of the profiles be performed more wear-free. In this preferred embodiment of the roller door is the one that closes the door leaf Strip with their two side end areas on the two in the lateral profiles that delimit the door opening Carriage held, the connection inadmissible when it occurs high lateral forces, for example in the event of a start by a vehicle, is lifted without the Release the tension cables from the end bar. During normal Operation of the roller shutter occur between the ends of the end bar and the slide essentially only vertical forces on by the top and bottom brackets of the bottom bar be transferred to the holding parts of the sled. In laterally the holding part of the slide is between the fork-shaped holding pieces of the end strip by the Tension rope fixed, which absorbs lateral forces by the fact that it on the side walls of the channel or gap of the sled creates. However, are those on the door leaf or the lower one End strip acting transverse forces so large that the holding pieces the end strip in the lateral direction from the holding part of the Slid off, the end bar can be between step out the side profiles that delimit the door opening or swing out, still using the two tension cables remains connected so that an uncontrolled swinging out of the lower area of the door leaf and unwanted flutter is prevented in the event of a crash. To after a crash to return the gate to its operational state, it is only necessary to slide the holding pieces over again laterally to slide the holding part of the slide and the edge areas of the door leaf into the guide slots again.

Since basically only the bottom end bar and the one with this connected lower part of the door leaf is inadmissible in the case high lateral forces without damage from the guides of the side Profiles must emerge, the lateral edges of the overlying part of the door leaf in the usual way in the Guide slots can be guided by holding elements, such as, for example are known from EP-A-0 157 198.

The door leaf exciting and with the bottom end strip connected ropes are in the channels or columns of the Carriage guided in such a way that even in the case of a lateral Do not push the end strip away from the sled come into contact with the edges of the guide slots and thereby can be damaged.

Conveniently, each carriage has an upper and one lower stop surface, which are bordered by the holding pieces.

The carriage can be made from one on opposite sides blocks provided with mutually parallel grooves, the Grooves overlap the profile webs delimiting the slot. A such a configuration leads to a particularly simple structure of the carriage, the block preferably made of a plastic with good sliding properties.

The block can have a gap in the plane of the door leaf be by two disc-shaped connectors or two roles supporting axles is bridged. According to this configuration the block is formed in two parts, the between these parts formed by the two guide slot Parts connecting connectors are bridged, either formed by round sliding surfaces for the tension cables or rollers are.

The connecting pieces or the axles carrying the rollers are expediently at approximately diagonally opposite one another Corner areas of approximately square or rectangular, the gap delimiting walls of the essentially cuboid block arranged so that good guidance of the tensioning cables is ensured is.

The holding pieces of the end strip are expediently of mutually parallel, forked connected to the bar, flat profile pieces. In this way, the end bar in the event of inadmissibly high transverse forces from the Slide or slide blocks are pushed off.

According to a further advantageous embodiment, that the lower, flat profile piece is made of elastic material. This configuration allows for a lateral Pushing the end strip away from the guide block or slide automatically engaging in the operating state again to cause the gate to be fully closed Position is driven, then the sled or block with such a force against the lower profile piece made of elastic Material creates that this is bent upwards and the holding part of the carriage or block in its holding position snaps.

According to an advantageous embodiment, it is provided that each Tensioning rope counter to the door leaf on one with the winding shaft connected drum can be wound up and unwound and that between the bottom pulley and the drum the tension cable between two frame-fixed pulleys and the role of one between them arranged bottom block, which is opposite the floor area is tensioned by a tension spring, pulley-like reeving is.

The roller door according to the invention can be, for example due to a crash of the end profile from the guide sled quickly and easily and even automatically return to its operating state. Despite this Favorable anti-crash system is the roller door according to the invention with a device for leaf tension and weight compensation Mistake. It is also of particular advantage that the Roller door according to the invention for its installation no additional width the gate opening required so that the existing clear width of the gate can be fully used. An unwanted and uncontrolled Swinging out and fluttering of the lower part of the Door leaf is avoided after a crash. Despite the backup of the goal against a crash due to the leaf tension and the holding elements on the side edges of the door curtain good wind stability over its full height. Finally the roller door according to the invention is also characterized in that the lower end strip in the event of a crash regardless of this can safely release, no matter where it hits has been.

Fig. 1

eine Seitenansicht des erfindungsgemäßen Tores unter Weglassung der seitlichen, die Toröffnung begrenzenden Profile in schematischer Darstellung,

Fig. 2

einen Querschnitt des in dem Schlitz eines seitlichen Torprofils geführten Schlittens mit einem Endbereich der an diesem gehalterten Abschlußleiste des Torblattes,

Fig. 3

eine Draufsicht auf den Endbereich des die Abschlußleiste bildenden Profils mit den an diesem befestigten Haltestücken,

Fig. 4

einen Schnitt durch ein seitliches, die Toröffnung begrenzendes Profil mit in dessen vertikalem Schlitz geführtem Schlitten und an diesem gehalterten Abschlußprofil in Betriebsstellung,

Fig. 5

die Darstellung nach Fig. 4 in vergrößerter Darstellung und

Fig. 6

eine der Fig. 5 entsprechende Darstellung mit ausgeklinkter Abschlußleiste.

An embodiment of the invention is explained below with reference to the drawing. In this shows:

Fig. 1

2 shows a side view of the door according to the invention, with the omission of the lateral profiles delimiting the door opening, in a schematic illustration,

Fig. 2

3 shows a cross section of the slide guided in the slot of a lateral door profile with an end region of the end strip of the door leaf held thereon,

Fig. 3

a plan view of the end region of the profile forming the end strip with the holding pieces attached to it,

Fig. 4

FIG. 2 shows a section through a side profile that delimits the gate opening with a slide guided in its vertical slot and an end profile held in this in the operating position,

Fig. 5

4 in an enlarged view and

Fig. 6

a representation corresponding to FIG. 5 with a notched end strip.

The roller door according to the invention consists of a in the usual way winding shaft with its diameter mounted above the gate opening magnifying winding cylinder 1 on which the flexible door leaf 2 can be wound up. On the winding shaft is in the area of the gate opening laterally delimiting profiles, of which in the Figures 2 and 4 to 5 the right profile 5 is shown, a Fixed winding drum 3, on the opposite to the door leaf 2 A tension cable 4 can be wound. Each of the two tension cables 4 runs from the winding drum 3 over two deflection rollers mounted on the frame or in the side profiles 5 6, 7 and a roller 8 arranged between them Bottom block via a deflection roller mounted on the base plate 9 10 to its fixed point 11 on the upper holding piece 12, the on the end bar arranged at the lower edge of the door leaf 2 13 is attached. On an eyelet or a hook the Deflection roller 8 carrying bottom block is the top of one Tension spring 14 attached, the lower end attached to a tab 15 is connected to the axis 16 of the deflection roller 10 is.

The winding shaft or the winding cylinder 1 for the door leaf 2 is by a counterweight whose strap or tether on one the winding shaft attached drum is wound or by a tension spring in the winding direction with a compensating torque charged, but taking into account that of the Tension rope on the winding shaft is exerted so large that the door leaf is wholly or partially wound on the winding cylinder if, in the event of a power failure, the brake of the Drive motor is vented.

Each of the side profiles 5 of the goal frame has in its a surface pointing towards the center of the door Slot 18, which is limited by the webs 19, 20 of the profile 5 becomes. In this slot is a roughly cuboid Block 21 made of plastic with a low coefficient of friction performed, provided on opposite sides with grooves 22, 23 in which the webs 19, 20 of the side profile 5 engage. The block 21 is in its vertical center plane with a Gap 24 provided by two disc-like connectors 25, 26 is bridged, the two also approximately cuboid Connect the holding parts 27, 28 of the block 21 together. The disc-like connectors 25, 26 are in the 2 apparent manner approximately diagonally to the rectangular or square walls of the block delimiting the gap 24 21 arranged.

On the crossbars 30, 31 of the bottom edge of the door leaf 2 connected end profile 13 are the holding pieces 12, 32, which consist of flat profile pieces and the ends of the bar or the end profile 13 in the manner shown in FIG. 2 protrude fork-like, fastened by screws. In the out Fig. 5 apparent operating position summarize the final profile 13 protruding holding pieces 12, 32 the guide slot 18 protruding part of the block 21 fork-shaped between them a. There is a sideways slide in the operating position the holding pieces 12, 32 avoided by the block 21 in that the tensioning cable 4 is held and centered on the gap 24 delimiting, inner side walls of the block 21 creates. However, affects the door leaf or directly on the end profile 13 For example in the event of a crash an inadmissible high lateral force, the end profile 13 thereby clicks off the guide block 21 from that the holding pieces 12, 32 of this in the 6 apparent manner with the entrainment of the tensioning cable 4th be pushed away. The rope 4 slips over the upper, rounded one Edge of the gap 24 in the one shown in FIGS. 2 and 6 Way, without limiting the guide gap 18 Profile bars to connect. Because the deportation and pushing the end profile 13 away from the guide block 21 under the tension of the tension cable 4, which with the upper holding piece 12 remains connected, is done, the final profile is through the tensioning ropes are tied up and is released after the shear force pulled back on the block so that the holding pieces effortlessly can be re-engaged by sliding onto the block 21.

The lower holding piece 32 can consist of elastic material, so that after disengaging the end profile 13 an automatic It can be latched in that the gate is in the direction is moved to its closed position. The upper one lays down Edge of the block 21 against the lower outside of the flexible Stop piece 32 in such a way that it is bent upwards until the holding block 21 snaps into its operating position slips over this. The lower holding piece can be used accordingly be shorter, with a corresponding Game of the holding block between the holding pieces 12, 32 is provided becomes.

Claims (10)

1. Roller door having a flexible door leaf (2) which can be wound onto a drivable winding shaft (1) which is rotatably mounted above the door opening and on which a compensation torque acts to compensate the weight of the door leaf hanging down, having a batten (13) which is attached to the lower end of the door leaf (2) and whose two ends are provided with holding pieces (12, 32) to which cables (4) are attached, which cables run over rollers (10) mounted in the bottom region and tension the door leaf (2), and having side parts (5) which laterally bound the door opening, consist of profiles, and have vertical slots (18) into which the side edges of the door leaf (2) project, characterized in that the holding pieces (12, 32) do not project into the side parts (5).
2. Roller door according to Claim 1, characterized in that a slide (32) is guided so as to be vertically displaceable in each of the side parts (5), which slide is fastened at its holding parts (27, 28), which project over the side parts (5) towards the middle of the door, between upper and lower holding pieces (12, 32), connected in each case to one end of the batten (13), in such a way that the holding pieces (12, 32) can only slip out or become disconnected from the holding part in the lateral direction, and in that each tensioning cable (4) is connected to an upper end region of the batten (13) and runs through a duct or gap (24) in the slide (21) to the bottom-side deflection roller (10).
3. Roller door according to Claim 1 or 2, characterized in that each slide (21) has an upper and a lower stop face, which stop faces are fastened by the holding pieces (12, 32).
4. Roller door according to one of Claims 1 to 3, characterized in that the slide consists of a block (21) provided with mutually parallel grooves (22, 23) on opposite sides, and in that the grooves (22, 23) engage over the profiled webs (19, 20) which bound the slot (18).
5. Roller door according to one of Claims 1 to 4, characterized in that, in the plane of the door leaf (2), the block (21) is provided with a gap (24) which is bridged by two disc-like connecting pieces (25, 26) or two spindles bearing rollers.
6. Roller door according to one of Claims 1 to 5, characterized in that the connecting pieces (25, 26) or spindles are arranged on corner regions, located approximately diagonally opposite one another, of approximately square or rectangular walls, bounding the gap (24), of the essentially cuboid block (21).
7. Roller door according to one of Claims 1 to 6, characterized in that the holding pieces (12, 32) consist of mutually parallel, flat profiled pieces which are connected in a fork-like manner to the batten (13).
8. Roller door according to one of Claims 1 to 7, characterized in that the tensioning cable (4) is connected in each case to the upper, flat profiled piece (12).
9. Roller door according to one of Claims 1 to 8, characterized in that the lower, flat profiled piece (32) consists of elastic material.
10. Roller door according to one of Claims 1 to 9, characterized in that each tensioning cable (4) can be wound onto and unwound from a drum (3) connected to the winding shaft (1), in a direction counter to the door leaf (2); and in that, between the bottom-side deflection roller (10) and the drum (3), the tensioning cable (4) is reeved in the manner of a pulley block between two deflection rollers (6, 7) mounted fixed to the frame and the roller (8) of a bottom pulley which is arranged between them and is tensioned by a tension spring (14) in relation to the bottom region.

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