EP1775417A1 - Lifting protection for roller doors, roller grilles and roller shutters - Google Patents

Abstract

The unit has a roller operated locking unit that is wound on a sleeve cylinder (12), where the cylinder is mounted at a fixed frame using a wandering support. A locking lever (20) is attached to the cylinder and is rotatable with the cylinder. An anchor plate (24) is fixedly attached to the frame or to the perimeter of a building opening. The locking lever and the anchor plate are formed in such a manner that the locking lever is engaged into the anchor plate in an end phase of locking movement of the locking unit and prevents movement of the cylinder with respect to the opening.

Description

introduction

The present invention relates generally to a roll operated closure member for a building opening, e.g. As a roller door, rolling grill or blinds, with a device for securing the roll-operated closing element against pushing.

Roller shutters, rolling grilles and shutters are characterized in that the closing element, i. the curtain or the tank, is wound on a winding drum to open the building opening. The winding drum is usually located above the building opening behind the lintel and rotatably mounted on either side in a frame or box. The drive of the winding drum is generally carried out by means of an electric drive motor.

The curtain or tank itself consists of articulated lamellae, which are guided in laterally arranged at the building opening guide rails. In the case of roller shutters and shutters, the lamellae have closed profiles, while in the case of a rolling lattice, the lamellae have latticed elements.

When winding the curtain on the winding drum, an ever thicker winding forms whose downwardly extending end must engage in the guide rails. In order to compensate for the outer diameter of the roll, which increases with each winding layer, and to allow the curtain to run as vertically as possible into the guide rails, roller shutters are known in which the winding drum is mounted in the stationary frame by means of displaceable bearing points. Such traveling or sliding bearings are displaceable substantially horizontally transversely to the axis of the winding drum along a guide rail, so that the winding drum shifts with increasing outer diameter of the coil of the lintel to the rear.

As a result, an optimal direction of entry of the curtain is guaranteed in the lateral guide rails regardless of the position of the door so that such a goal is characterized by particularly good smoothness.

A disadvantage of the traveling camp, however, that even with completely closed curtain, this has no fixed abutment at the top, so that a lowered roller shutter or rolling grille can be relatively easily pushed up by unauthorized persons, that penetration into the building behind it possible is. To prevent this, the roller door must therefore be provided with a safety device that effectively prevents pushing up.

Object of the invention

Object of the present invention is therefore to provide a closure element for a building opening in such a way that a push-up of the roll-operated closing element is prevented with structurally simple means.

General description of the invention

This object is achieved by a roll-up door, rolling grill or a roller shutter according to claim 1. Such a closure element for a building opening has a roll-operated closing element which can be wound onto a winding drum, wherein the winding drum is mounted on both sides by means of a traveling bearing, for example, substantially horizontally displaceable on a stationary frame or frame. In addition, according to the invention, the closure element comprises at least one locking element associated with the winding drum and rotatable with the winding drum, and at least one locking receptacle corresponding to the frame or enclosure of the building opening, e.g. As a fall, is assigned stationary, wherein the locking element and the locking receptacle are configured such that engages in the final phase of the closing movement of the closing element, the locking element due to its rotational movement in the locking receptacle and thus a displacement of the winding drum with respect to the building opening prevented. Since the winding drum is fixed and is blocked by the braking effect of the electric drive motor against rotation, thus an effective safeguard against pushing up the roller shutter door is given.

In the present invention, the push-up protection of the roller shutter is therefore effected by a locking system that is structurally extremely simple and thus very inexpensive to produce. In addition, the locking of the door against pushing does not require any additional operating steps on the part of the operator, so that a locking of the door is properly guaranteed at each closing. In fact, the locking element is designed such that it is due to its rotational movement with the winding drum when reaching the closed position of the door automatically with the locking receptacle, such as an anchor bracket, an anchor plate or Ankernase, engaged. Similarly, when lifting the door, the engagement of the locking element in the locking receptacle is automatically canceled by the then reverse rotational direction, so that the blocking of the winding drum can be repealed and this can move with increasing outer circumference of the coil relative to the building opening to the rear. Accordingly, the present anti-lift device is also suitable for roller shutters or rolling grilles which are actuated, for example, by means of a remote control or roller shutters which are to be automatically opened or closed with a timer at specific times.

It should be noted that the locking element and the Verrieglungsaufnahme are preferably designed such that the engagement of the two elements along substantially vertical contact surfaces. As a result, a relative displacement of the two Verrieglungselemente under the influence of a force acting on the rear of the traveling bearing force and thus a violent breaking the anti-pushing device effectively prevented.

The person skilled in the art will recognize that it is ensured by displacing the winding drum to the rear that the locking element rotates past the locking receptacle after the first revolution and thus another Turning of the tank not obstructed. Accordingly, it is ensured that the engagement of the locking element in the locking receptacle takes place only when the roller door retracts when unwinding the last turn in its closed position.

In a preferred embodiment of the invention, the winding drum is secured when reaching the closed position at its two ends against displacement. In this case, the winding drum is assigned to each of its end faces in each case a locking element which cooperates with a corresponding locking receptacle.

In one possible embodiment of the locking device, the locking element has a locking lever which extends substantially in the radial direction beyond the winding drum and which has a notch at its outer end, which cooperates with a suitable anchor element of the locking receptacle. In another embodiment, the locking element comprises a side plate with a locking nose, wherein the locking lug against the rolling direction extends beyond the winding drum and in its lower region has a notch, which cooperates with an anchor element of the locking receptacle.

The anchoring element may comprise, for example, a locking tab, a locking tab or a locking bracket, which is mounted at the height of the axis of rotation of the winding drum on the lintel or on a front panel of the goal frame and extends rearwardly. Alternatively, the anchor element can be mounted laterally on the frame of the door, and extend in the lateral direction, so that the locking lever can engage in this.

The locking element can be arranged directly on the winding drum and fixed, for example on an end face of the winding drum, or it can be mounted on the axis of rotation of the winding drum. If the axis of rotation of the winding drum must be easily accessible, for example on the side at which the tubular motor is mounted in the axis of rotation, it is possible to use the locking element only to be attached to the winding drum in the radially outer region of the end faces. In the case of a locking lever, this is then angled so that the outer end still extends substantially in the radial direction to allow trouble-free intervention in the locking receptacle. However, if the locking element comprises a side plate which is mounted on the end face of the winding drum, this is preferably formed substantially annular, so that after installation, the central region of the winding drum remains freely accessible.

It should be noted that the locking element may be rotatably connected to the winding drum. Alternatively, the locking element is mounted such that, after overcoming a frictional engagement between the locking element and the end face of the winding drum or between the locking element and the axis of rotation with respect to the winding drum is rotatable. This embodiment offers the advantage that the position of the locking element with respect to the locking receptacle when reaching the closed position can be optimally adapted.

In a further embodiment of the invention, the locking element on a locking pin which extends from the end face of the winding drum in the lateral direction, so that the locking pin engages in the closed position, a substantially vertical anchor element of the locking receptacle.

Detailed description based on the figures

Fig.1:

einen Schnitt durch einen Rolltorkasten mit Wanderlager;

Fig.2:

eine Seitenansicht einer Wickeltrommel mit einer ersten Ausgestaltung einer Verriegelungsvorrichtung;

Fig.3:

eine Seitenansicht einer Wickeltrommel mit einer zweiten Ausgestaltung einer Verriegelungsvorrichtung;

Fig.4:

eine Seitenansicht einer Wickeltrommel mit einer dritten Ausgestaltung einer Verriegelungsvorrichtung,

Fig.5:

eine Draufsicht einer Wickeltrommel mit einer vierten Ausgestaltung einer Verriegelungsvorrichtung,

Fig.6:

eine Seitenansicht der Wickeltrommel der Fig. 5.

In the following an embodiment of the invention will be described with reference to the accompanying figures. Show it:

Fig.1:

a section through a roller shutter box with moving camp;

Figure 2:

a side view of a winding drum with a first embodiment of a locking device;

Figure 3:

a side view of a winding drum with a second embodiment of a locking device;

Figure 4:

a side view of a winding drum with a third embodiment of a locking device,

Figure 5:

a top view of a winding drum with a fourth embodiment of a locking device,

Figure 6:

a side view of the winding drum of FIG. 5th

Fig. 1 shows a section through a roller door box with moving camp. The roller door comprises a curtain made of a plurality of mutually hinged slats which is attached to a winding drum 12 and on this up or can be unrolled from this. The unwound portion of the curtain, i. the free end is guided in laterally mounted on a building opening guide rails 14 in the vertical direction.

The winding roller 12 is laterally rotatably mounted on a carriage 16 which is displaceable, for example by means not shown rollers in a substantially horizontal guide rail 18. This traveling camp allows the vertical as possible running of the curtain in the guide rails fourteenth

Fig. 2 shows a side view of a winding drum 12 with locking device. A locking lever 20 is mounted in the region of the end face of the winding drum 12 such that it extends outwardly in a substantially radial direction beyond the winding drum. In the illustrated embodiment, the locking lever 20 extends inwardly to the axis of rotation 28 of the drum 12. In this case, the locking lever 20 may be mounted directly on the rotation axis 28. Alternatively or additionally, the lever may also be fixed to the end face of the drum 12.

At its outer end, the locking lever 20 on the underside of a notch 22, which is brought in the closed position of the door with an anchor tab 24 into engagement. The anchor tab 24 is in the illustrated embodiment, for example, the base of a U-shaped bracket which is fixedly mounted on the lintel 26 or a front panel of the goal frame.

The engagement of the notch 22 and the anchor tab 24 along substantially vertical contact surfaces, so that an effective locking of the traveling bearing against a pushing back (in the figure 2 to the left) takes place.

3 shows a slightly modified variant of the locking lever 20. In this embodiment, the lever has an inner region 30, which is angled relative to the outer end. The inner region 30 is arranged in the illustrated embodiment tangentially to the axis of rotation 28 and spaced therefrom mounted on the end face of the winding drum. Only the outer end of the locking lever 20 extends outwardly in the radial direction, so that the notch 22 can be securely engaged with the anchor member 24 (an anchoring lug in the illustrated embodiment).

Due to the angling of the locking lever 20, the inner region of the winding drum 12 remains freely accessible in this embodiment, which is necessary, in particular, on the side on which a tubular motor is mounted in the axis of rotation.

In the embodiment shown in Fig. 4, the locking element comprises an annular side plate 32 which is mounted on the end face of the winding drum. The side plate 32 includes a locking tab 34 which is opposite to the unwinding direction, i. the direction of rotation, in which the curtain is unrolled, extends beyond the winding drum 12 and in its lower region has a notch 36 which cooperates with an anchor member 38 of the locking receptacle. The anchor element comprises in the illustrated embodiment a running from a round steel U-shaped bracket, which is mounted behind the lintel 26.

Another variant of the locking device is shown in Figures 5 and 6. In this embodiment, the invention, the locking element has a locking pin 40 which extends from the end face of the winding drum 12 in the lateral direction outwards, so that the locking pin 40 engages in the closed position, a substantially vertical anchor member 42 of the locking receptacle.

Claims (7)

Closure element for a building opening with a roll-operated closing element, which is wound on a winding drum, wherein the winding drum is mounted on both sides by means of a traveling bearing on a stationary frame, characterized by at least one locking element associated with the winding drum and rotatable with the winding drum, and at least one Lock receptacle, which is associated with the frame or an enclosure of the building opening stationary, wherein the locking element and the locking receptacle are configured such that in the final phase of the closing movement of the closing element engages the locking element in the locking receptacle and prevents displacement of the winding drum with respect to the building opening. Closure element for a building opening according to claim 1, characterized in that the winding drum is assigned to each end face in each case a locking element which cooperates with a corresponding locking receptacle. A closure member for a building opening according to any one of claims 1 or 2, characterized in that the locking member comprises a locking lever which extends in a radial direction beyond the winding drum, and in that the locking lever has at its outer end a notch, which with a Anchor element of the locking receptacle cooperates. Closure element for a building opening according to one of claims 1 to 3, characterized in that the locking element comprises a side plate with a locking lug, wherein the locking lug against the unwinding direction extends beyond the winding drum and in its lower region has a notch, which with an anchor element the locking receptacle cooperates. Closure element for a building opening according to one of claims 1 to 4, characterized in that the locking element is rotatably connected to the winding drum. Closing element for a building opening according to one of claims 1 to 4, characterized in that the locking element with respect to the winding drum is rotatable. Closing element for a building opening according to one of claims 1 to 6, characterized in that the locking element has a locking pin which extends from the end face of the winding drum in the lateral direction, so that the locking pin engages in the closed position a substantially vertical anchor element of the locking receptacle.

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