EP1431499A2 - Drive for a sliding door system or the like - Google Patents

Abstract

The drive includes a secondary drive which with failure of the main drive is triggered by a trigger mechanism. The secondary drive is an elastic element of flat strip like material shaped in cross-section so that its thickness is less than 50% of the width of the strip like elastic element.- Two superposed guide pulleys (39) for the elastic element can be provided on the two outside end areas of the drive.

Description

The invention relates to a drive for a sliding door system or the like according to the preamble of the claims 1 or 2.

A corresponding drive arrangement for a sliding door system with an auxiliary drive is for example from the EP 0 781 892 A2 has become known. The auxiliary drive serves to the door in an emergency situation, for example can be opened via the auxiliary drive in the event of a power failure. The For this purpose, auxiliary drive comprises an energy store. The Auxiliary drive consists of a rubber elastic Rope that is tensioned when the door is closed, the the energy stored above is sufficient to close the door open by the elastic cable pulling itself contracts.

According to EP 0 663 505 A1 there is also a drive arrangement for a sliding door system with an auxiliary drive described, but in which the auxiliary drive is permanent is excited. In an emergency situation, a decoupling device actuated, which then enables the rubber-elastic auxiliary drive contracts about opening the coupled door leaf.

In general there is a generic automatic sliding door system with such an auxiliary drive from WO 90/13723 A1 became known. When closing the Energy is supplied to the door and into the auxiliary drive saved. This is in the event of a power failure and / or Interruption of the normal drive in the form effective, that while opening a clutch between the drive motor and the actuator of the rubber elastic Auxiliary drive contracts and the Move the sliding door over to the open state becomes.

The auxiliary drive consisting of the elastic cable is at one end with one end, also known as a carrier rail or housing arrangement, stationary and with its opposite end attached to one in the assigned door leaf. Prefers becomes the rubber-elastic cable around a pulley led around.

In contrast, it is an object of the present invention even improved drive arrangement for an automatic To create sliding door or the like.

The task is according to the invention in accordance with the claim 1 or 2 specified features solved. advantageous Embodiments of the invention are in the subclaims specified.

The solutions that have become known so far include Use of an elastic cable for the mentioned Auxiliary drive always from a cord-like rubber-elastic Element has been assumed that one in Has essentially circular cross section.

It has to be described as surprising that now a significantly improved arrangement for one such auxiliary drive has resulted in that in deviation not a rubber elastic to the state of the art Cable with a more or less circular cross-section but used an elastic band or flat band becomes. The flat strip is around at least one deflection roller led around, their axis parallel to the roller axes the sliding door arrangement is arranged. Therefore The main advantage is that only one minimal material extension is transverse to the axis and the elastic band with its long transverse extension parallel to the axis of rotation of the rollers of the door leaves and the pulley is aligned. This reduces in hitherto unexpectedly occurring internal rolling forces. On the one hand, this increases the efficiency of the auxiliary drive increased and on the other hand its service life is remarkable extended.

The use of such a, comparatively wide dimensioned rubber elastic compared to its thickness Band or band element also has the positive effect on that even with the door closed by the rubber elastic Element, the otherwise free space is covered, in the trajectory of the opening door leaf. Because this from the housing cover downward space is necessary around the relevant sliding door leaf from the closed one to be able to adjust to the open position. Here the upper end of the door wing protrudes into the Inside the case cover. When closing the Otherwise this distance would be subject to door leaves. In this area runs between one outside lying pulley and the outward-facing boundary sides of the sliding door leaf the band-shaped rubber-elastic element, which is now the corresponding Movement and freedom for the adjustment process of the Sliding door leaf covers upwards.

In an alternative embodiment, the preferred together realized with the technical solution according to claim 1 it is intended that the rubber-elastic, element serving as auxiliary drive not only at one end at one between an open and a closed position movable door leaf or the like, but also provided at its other end on a second movable sliding door leaf is attached. Doing so the rubber-elastic element serving as an auxiliary drive at least two deflection rollers, preferably by one each Pair of pulleys deflected so that the respective End of the rubber-elastic suction element on the at least two interacting sliding door panels in the direction Prestressed opening position.

In a preferred embodiment of the invention provided that the rubber-elastic band element a Thickness that is less than 50% of the width, in particular less than 30%, 20% or even less than 10% of the Width of the rubber-elastic element. In a preferred embodiment is the thickness of the rubber elastic Element in relation to its width by about 5% is, preferably in a range of 2% to 8%.

Figur 1:

eine schematische Frontseitenansicht auf eine Antriebseinrichtung für ein Paar von Schiebetürflügel in geschlossener Position;

Figur 2:

eine entsprechende Darstellung in geöffneter Position bei Normalantrieb oder Notfallbetrieb;

Figur 3:

eine auszugsweise schematische Frontseitendarstellung zur Erläuterung der Umlenkung des bandförmigen gummielastischen Elementes, und

Figur 4:

eine schematische auszugsweise Querschnittsdarstellung durch den Schiebetürantrieb.

The invention is explained in more detail below with reference to drawings. The following show in detail:

Figure 1:

a schematic front view of a drive device for a pair of sliding door leaves in the closed position;

Figure 2:

a corresponding representation in the open position with normal drive or emergency operation;

Figure 3:

a partially schematic front view to explain the deflection of the band-shaped rubber-elastic element, and

Figure 4:

a schematic partial cross-sectional view through the sliding door drive.

In the exemplary embodiment shown is a sliding door system shown with two sliding door leaves 1, the between a closed position shown in Figure 1 and an open position shown in FIG are movable outside. Each door leaf 1 is one Carriage device 3 with two in the longitudinal direction of the door leaf 1 staggered carriage 3 'and 3 "(or Castors) slidably held and guided. The carriage device 3 with the two carriages 3 'and 3 " for this purpose in a running rail attached to the wall or building 5 led. The running rail 5 has one below lying and pointing upwards in cross section tread preferably convex to the running direction on which with correspondingly concave treads Unroll the provided wheels 3 of the carriages. In addition, more can be set up lying impellers 4 can be provided on a overlying and downwardly facing tread 4 ' roll to position the carriages accordingly, that the wheels are captive on the track are led.

The running rail 5 is part of the entire support or Housing arrangement which, for example, on the housing side, i.e. on the back and / or on the opposite side front ends (i.e. in the direction of the running rail be offset) anchored on the building side can.

On the mentioned carriages or rollers are then in suitably kept the door leaf 1 anchored.

For the sake of clarity is in the figures 1 and 2 the running rail 5 only schematically in the drawing indicated.

The door leaves 1 shown in the drawings are as known per se, over one or two, for example Electric motors driven, the or the preferred in Area of the pulleys 7 are arranged and in the Rule via an integrated in the engine or in the downstream Gear the associated deflection or drive rollers 7 in the opening direction or with the reverse Drive the rotary drive in the closing direction. About these pulleys 7 becomes a transmission means 17 as a rule driven in the form of a belt drive, the bottom of which lying dreams 17a with a sliding door leaf 1 and whose upper run 17b with the second sliding door leaf usually via one driver 19 each are firmly connected. By appropriate reversal of the Belt drive can therefore the two sliding door leaves adjusted between open and closed positions become.

As can be seen from FIG. 4, the sliding door leaves 1 by means of vertical adjustment elements 21 which are attached to the vertical the vertical profiles enclosing the sliding door leaves 23 in different vertical heights in corresponding Grooves 25 can be anchored relatively in height the carrying wheels 3 adjustable.

In the schematic cross-sectional representation according to FIG 4 can also be seen that the running rail 5 with its im Cross-section upward-pointing convex tread 27, for example in a corresponding recess of the Carrier or housing support 29 may be anchored, wherein the housing support on its left in Figure 4 or at its opposite ends on one Building can be attached. From Figure 4 is also to see an impeller 3, which on the rail 5 rolls. About the axis 3 'of the impeller 3 is then provided as a carriage 31 designated support device, in which height adjustable via the mentioned vertical profiles 23 the height of an associated door leaf 1 can be adjusted. Each sliding door leaf is 1 at least on two wheels 3, which are in the direction of displacement lie offset, held and carried.

Furthermore, there is also an electric motor in the exemplary embodiment shown 33 visible in Figure 4, which has an integrated or downstream transmission and a drive shaft 35 Drive or deflection wheel 7 occurs, around which with a second offset pulley 7 the mentioned Belt drive 17 is driven reversible. Over a assigned electronics is then known to be the control made such that the sliding door leaf can open and close.

It can also be seen from the figures that a Auxiliary drive 37 for an emergency situation, i.e. in particular is provided in the event of a power failure. This auxiliary drive 37 comprises an elastic band-shaped one acting on tension Element 37 ', one end of which at least indirectly on the a sliding door leaf 1 and its second opposite one End at least indirectly on the second sliding door leaf 1 is attached or attacks it. The elastic band-shaped element 37 ', which is also partially as an elastic or elastic band is called in the exemplary embodiment shown over two each Deflection rollers 39 performed, namely two in the front view 1 to 3 on the left, one above the other Deflection rollers 39 'and two at the right end of the Drive arrangement lying and offset in the vertical direction deflection rollers 39 "arranged to one another. These deflection rollers have a comparatively small cross-section compared to the cross section of the pulleys for the belt drive. This is in Figure 4 band-shaped element 37 'shown in section as it at the top and bottom of the corresponding Deflection roller 39 rotates. Are on the pulleys each on the two opposite ends disc-shaped, radially projecting end elements 40, which shows a sliding of the band-shaped element 37 prevent. The space between the top and each lower pulley 39 is shown empty, and for the sake of clarity. The one in this room parts of the carriage etc. behind it are in the graphic representation according to Figure 4 has been omitted.

The deflection rollers 39 have their opposite ones A limiting disk 40 on the end faces with a larger diameter on what the first band-shaped elastic element 37 against axial sliding down is secured by the pulleys 39.

In normal opening or closing operation, the Always close the sliding door wing the elastic element stressed on train and stored additional energy. During the opening movement of the sliding door leaves in normal sliding door operation, the force of the rubber elastic acts Element on the sliding door leaf, to open it quickly. Works in the closed position for example a braking or other locking device on the sliding door leaf in such a way that it too when the drive motor 33 is switched off, not in the open position can be adjusted. In other words, stay there the sliding door leaf 1 in its closed position according to Figure 1, even after the at least one drive motor 33 for adjusting the sliding door leaf in whose closed position is switched off.

In an emergency situation, especially in the event of a power failure, however, the locking or braking device mentioned switched off by the power failure, causing the braking or Locking effect is released, so that the auxiliary drive in the form of the band-shaped element 37 ' its full elasticity directly on the two sliding door leaves 1 acts and this over this in opposite Direction from the closed position shown in Figure 1 in the open position shown in Figure 2 shifts.

The fact that both ends of the band-shaped elastic Element 37 'connected to both sliding door leaves 1 are, when the sliding door leaf is closed, one opens the preferably rubber-elastic element acting tensile stress causes which due to the adjustment movement both sliding door leaf 1 is twice as large in the event that the elastic member 37 'on its End with only one door wing and at its other end is fixedly connected to the housing drive arrangement.

From the graphic representations it can also be seen that the pulleys interacting in pairs 39 arranged for the elastic band-shaped element 37 ' are that the top and bottom, respectively, in pairs interacting pulley above or below the upper or lower run 17 ', 17 "of the belt drive 17 comes to rest.

It can also be seen from FIGS. 1 to 4 that the lower run 17a of the band-shaped elastic element for the auxiliary drive 17 comes to lie at a height that approximately at the level of the lower boundary wall 43 ' Housing cover 43 (Figure 4) comes to rest. This offers the main advantage with closed wings 1, such as shown in Figure 1 that in this case the actual free space 45 between the lower housing wall cover 43 'and the rear wall section 29' of the carrier or housing 29 at least downwards is largely closed. The wing door is in the open position adjusted, so that is automatically elastic band-shaped element due to the tensile force effect move with the wing so that the range of motion released for the wing 1 concerned that protrude into the free space 45 at its upper end can.

The band-shaped element can not only be used as a simple band be formed, but also designed tubular his. With a tubular design of the in question standing elastic element is ultimately even just a band-shaped element in which the two longitudinal sides on the outside of the band-shaped element are quasi connected to each other to form a hose. The tube wall itself is ultimately also band-shaped designed.

When using such a hose as an elastic Element 37 'becomes this tubular band material especially in the area of the pulleys, pressed flat, so two opposite wall sections of the hose are almost against each other. The so educated Total thickness of the tubular or band-shaped elastic Element 37 'is again less than 50% of the tubular shape compressed into a band shape elastic element.

Claims (8)

Drive for a sliding door system or the like with at least one wing (1), with the following features: the at least one wing (1) is operationally coupled to a movable drive transmission means, preferably in the form of a belt (17) which is laid all around or at intervals, There is an auxiliary drive (37) which, in the event of failure of the drive device (33) moving the drive transmission means, is triggered by means of a trigger device such that, in the event of a power failure, the auxiliary drive (37) is released for the independent movement of the wing (1) assigned to it, the auxiliary drive (37) in the form of an elastic element (37 '), via which tensile forces are directed onto the at least one wing (1), is supported at least indirectly at one end on the wing (1) assigned to it or engages it, characterized by the following additional features: the auxiliary drive (37) in the form of an elastic element (37 ') consists of a flat band material, and The flat band material is designed in cross section so that its thickness is less than 50% of the width of the band-shaped elastic element. Drive, in particular for an automatic sliding door or the like with at least one leaf (1) with the following features: the at least two wings (1) are operationally coupled to a movable drive transmission means, preferably in the form of a belt (17) which is laid all the way around or at intervals, There is an auxiliary drive (37) which, in the event of failure of the drive device (33) moving the drive transmission means (3), is triggered by means of a trigger device such that, in the event of a power failure, the auxiliary drive (37) is released for the independent movement of the wing (1) assigned to it becomes, the auxiliary drive (37) in the form of an elastic element (37 '), via which tensile forces are directed onto the at least one wing (1), is supported at least indirectly at one end on the wing (1) assigned to it or engages it, in particular according to claim 1, characterized by the following additional features, the other opposite end of the elastic element, which can be subjected to tension, is attached at least indirectly to the at least second door leaf (1), which is adjustable in the opposite direction to the first door leaf (1) when adjusted in the open or closed position, and the elastic element is laid in such a way that a tensile force effect is introduced in the opening direction on each of the two door leaves (1). Drive according to claim 1 or 2, characterized in that the thickness of the elastic band-shaped element (39 ') is less than 40% of its width, in particular less than 30%, 20% and in particular less than 10% of the width of the elastic band-shaped element ( 37 '). Drive according to one of claims 1 to 3, characterized in that the thickness of the band-shaped elastic element is about 2% to 8% based on its width, in particular by 5%. Drive according to one of claims 1 to 4, characterized in that in each case two deflecting rollers arranged one above the other are provided for the elastic element (37 ') on the two outer end regions of the drive, that in each of the deflecting rollers (39) the rubber-elastic band-shaped element (37 ') is deflected by approximately 90 °. Drive according to one of claims 1 to 5, characterized in that the vertical offset of the two adjacent deflection rollers (35) is greater than the diameter of the deflection rollers (7 ') for the belt drive (17). Drive according to one of claims 1 to 6, characterized in that the section of the elastic band-shaped element (37 ') connected to the respective wing (1) is laid at least approximately at a height at which a lower boundary wall (43') ) a housing cover (43) comes to rest. Drive according to one of claims 1 to 7, characterized in that the elastic element (37 ') consists of an elastic hose, the material thickness of which is in particular less than 50% of the width of the band-shaped elastic element.

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