EP2363566A2 - Sliding gate - Google Patents

Abstract

The sliding door (1) has a door leaf (2) which is conveyed between an open position and a closed position, where the door leaf releases a through-opening in the open position. The through-opening has a base structure (3). A holding element (4) is received in the base structure. A driving device (5) is connected with a brand sensor, so that the driving device is activated in fire.

Description

The present invention relates to a sliding door with a door leaf, which can be transferred between an open position and a closed position, wherein the door leaf releases a passage opening in the open position, which has a substantially flat, barrier-free floor structure.

Such sliding gates are in the art in different applications in use to be able to selectively close one of steps, protrusions, or other obstacles passage opening.

In particular, it is also known to form the gates as fire doors, which are automatically transferred in a fire to separate a fire section in the closed position, as for example in the DE 199 64 251 B4 is described.

From the DE 202 07 974 U1 It is also known in connection with fire-resistant partition wall systems to fix a arranged in the partition door in a fire automatically with sliding bars.

With such a fire door should be achieved in case of fire, a room closure, which is understood by the ability of fire protection closure, under fire stress from one side to prevent the passage of flames and hot gases on the unclaimed page.

In case of fire, the door leaf of a fire door is exposed to uneven heat, which can cause a significant warp or deformation of the door leaf. However, under certain circumstances, the deformed door leaf is no longer able to guarantee the required room closure or fire resistance.

In addition, gates are in use in the prior art, which are exposed to changing wind influences. Such gates are usually designed to withstand wind forces within a certain range without significant distortion of the door leaf. In a storm, however, wind gusts with extremely high wind speeds act on the door leaf, so that the load limit of the door leaf is exceeded by a multiple. This may disadvantageously entail damage to the door, which requires a costly repair or even replacement of the door leaf.

On the other hand, other type of swing doors with locking devices are known, which are accommodated in an inactive position in a built-in floor or ceiling housing. In the US 2 264 182 A For example, a glass door with two pivotable wings is shown, wherein a locking device either a forked or pin-shaped locking bolt which engages in an active position on the cantilevered end portion of the pivotable door leaf to prevent pivotal movement, ie opening the door.

Furthermore, is from the WO 1999/54575 A2 a swing gate with a locking device is known, which has on one side a stop element, which is pivotally mounted and does not protrude in an inactive position on the bottom surface. In an extended position, however, the stop element is so on the pivotally mounted door, that opening the door is not possible.

From the GB 962,475 another door stopper for pivotally mounted doors is known in which a holding element is arranged in an inactive, received in the ground position and is pivoted in an active position in an outstanding position on the bottom surface.

The object of the present invention, however, is to provide a sliding gate of the type described above, in which a deformation of the door leaf over a predetermined amount addition when required, especially in a fire or a storm, reliably prevented.

This is achieved in the sliding gate of the type mentioned by the fact that in the soil structure, a holding element is added, which is sunk between a completely submerged in the soil structure Normal position and a projecting beyond a plane defined by the flat floor structure active position by means of a drive device is displaceable, so that the holding element in the active position limits a deformation of the door leaf perpendicular to its longitudinal extension plane.

Accordingly, according to the invention, if required, the holding element can be moved into the active position protruding from the floor structure, in which the deformation of the closed door leaf is limited. The transfer of the retaining element in the active position is made in an embodiment as a fire door in particular when a fire is detected. In case of fire, high and locally varying temperatures cause high voltages in the door leaf. The changes in shape of the door leaf occurring in the event of fire are, according to the invention, perpendicular or transversal, that is to say by the holding element. in both directions, limited to the longitudinal extension plane of the door leaf, which in particular has the advantage that in case of fire a reliable room closure is guaranteed. By the deformation of the door leaf is limited by the retaining element to a predetermined extent, a passage of flames or hot gases is avoided in the case of fire on the side facing away from the fire side of the door leaf. In addition, the change in shape of the door leaf can be limited to the holding element even at gates that are exposed to changing weather conditions. In the event of a storm, the holding element is moved into its upright position from the soil structure, in which the possible deformation of the closed door leaf is reduced to a minimum. However, the invention should not be limited to the execution of the door as a fire or storm protected gate. A variety of other uses of the gate are conceivable for those skilled in the art, in which the limitation of the deformation of the door leaf in case of need, especially when exceptional conditions prevail, is advantageous.

In order to move the support member automatically in a fire in the active position in which the deformation of the door leaf is limited transversely to its longitudinal extension plane to a predetermined extent, it is advantageous if the drive device is connected to a fire sensor, so that the drive device in Fire is activated. As a fire sensor, for example, a smoke detector can be used. On the other hand, the fire sensor may be formed by a temperature measuring device, which automatically indicates when a predetermined temperature is exceeded, which indicates a fire, the closing process of the door and transfers the holding element in its active position.

In an alternative embodiment of the door, it is favorable if the drive device is connected to a wind sensor, so that the drive device is activated in the event of a storm. The wind or storm sensor is in particular configured to detect the instantaneous wind speed. When a predetermined maximum wind speed is exceeded, the holding element is moved by the drive device in its active position. Wind sensors may be provided as wind sensors, which are known in the prior art in another context with awnings or the like.

A reliable, rapid transfer of the retaining element in the active position, if necessary, is ensured if at least one spring element and an electromagnet are provided as a drive device, wherein in the normal position of the electromagnet holding down the holding element against the force of the spring. As long as the power supply of the electromagnet is upright, the electromagnet indirectly or directly exerts a magnetic force on the holding element, which reliably holds the holding element in the lowered in the soil structure normal position. In case of need, for example, in case of fire or storm, preferably, triggered by a corresponding signal of the fire sensor or storm sensor, the power supply to the electromagnet interrupted, whereupon the holding element is moved under the action of the spring in the projecting beyond the soil structure active position in which the Deformation of the door leaf is limited by the retaining element.

In an alternative embodiment may be provided as a drive device, a hydraulic, pneumatic or electric drive.

With regard to a stable, structurally simple guidance of the holding element in the transfer between the recessed in the soil structure normal position and the advanced active position, it is advantageous if the holding element is mounted on a slidably mounted carriage.

To limit the movement of the carriage in its transfer to the active position, it is advantageous if the carriage rests in the active position on a preferably plate-shaped stop element, wherein the stop element is preferably arranged flush with the rest of the soil structure. In the case of an embodiment of the drive device with an electromagnet and a spring element, it is advantageous if the carriage is pressed in the active position of the holding member by the force of the spring against the stop member, whereby a particularly stable arrangement can be achieved.

In order to enable the displacement of the holding element in the active position in a simple manner, it is advantageous if the stop element has at least one opening through which the holding element protrudes in the active position. The opening is preferably formed substantially complementary to the holding element.

For simple and reliable mounting of the stop element, it is advantageous if the stop element is arranged on pin-shaped fastening elements, which are accommodated in a substantially trough-shaped housing for receiving the retaining element in the normal position. Preferably, four pin-shaped fastening elements are attached to the particular plate-shaped stop element, with which the plate-shaped stop element is supported uniformly.

The displaceable, spring-loaded mounting of the carriage can be accomplished in a structurally simple manner, if preferably each pin-shaped fastening element is received in a force acting between the trough-shaped housing and the carriage coil spring. The carriage preferably has a corresponding for each pin-shaped fastener Recess, through which protrude through the pin-shaped fasteners. When transferring the retaining element in the active position of the carriage is moved by the action of the coil springs along the arranged in the coil springs pin-shaped fasteners until the carriage rests in the active position of the retaining element on the stop element.

Preferably, a U-shaped rail is provided as a holding element, the legs of which engage around the door leaf in the active position. In this embodiment, therefore, a lower end portion of the door leaf in the active position of the holding element within the U-shaped rail can be arranged.

To guide the door leaf in its transfer to the closed position, it is advantageous if the U-shaped rail has a portion in which approach the legs seen in the closing direction of the door leaf to each other. When the sliding gate is closed in a direction perpendicular to the planar floor structure, i. In particular, in the manner of a garage door from top to bottom, it is therefore advantageous if the defined between the legs of the rail guide tapers from the top of the rail toward a base connecting the legs of the rail to the arrangement of the door leaf in to facilitate the rail. In another preferred closing mechanism for the gate is provided that the door leaf is guided sideways or in a direction parallel to the soil structure, it being also advantageous in this case when the legs of the U-shaped rail viewed in the closing direction of the door leaf on each other run.

In order to be able to arrange the holding element in the active position within the door leaf, it is advantageous if the door leaf has a groove-shaped recess at an end face facing the bottom structure in the closed position.

With regard to a convenient fixation of the door leaf by a arranged in the active position within the door leaf holding element, it is advantageous if a holding element as a pin-shaped Engagement part, preferably with a guide roller, is provided.

In order to improve the guidance of the door leaf when it is transferred to the closed position, it is favorable if a retaining element is provided widening at least in sections in the closing direction of the door leaf engaging part; In this case, the door leaf first encounters the converging tip of the engagement member during the closing operation and is then guided along the wedge-shaped widening engagement member until the door leaf reaches its closed position.

In order to be able to absorb deformation forces acting on the door leaf as well as possible, it is favorable if at least two holding elements are arranged distributed in the longitudinal direction of the passage opening, wherein the holding elements are preferably arranged at a distance from an edge portion of the passage opening, and in particular arranged such that the holding elements the passage opening in the longitudinal direction divided into substantially equal sections. Consequently, by means of a plurality of preferably uniformly distributed over the length of the door leaf in the closed state arranged holding elements, the forces acting on the door leaf forces can be efficiently absorbed to avoid deformation of the door leaf as far as possible.

In the sliding gate according to the invention, it is favorable in terms of an additional limitation of the deformation of the door leaf in its closed position, when the door leaf in the closing direction is displaceable up to a laterally delimiting the passage wall, wherein in a wall portion facing the door leaf, a further holding element is accommodated between a fully recessed in the wall portion normal position and a projecting beyond a plane defined by the wall portion level active position by means of a drive device is displaceable. Such a further holding element is particularly advantageous in sliding gates in which the door leaf in the closed position is not accommodated in a rigidly arranged holding rail (a so-called inlet profile) or the like. The Further retaining element or the associated drive device can be designed in accordance with the retaining element integrated in the base structure-which is absolutely necessary in order to avoid adverse changes in shape of the door leaf-so that reference is made to the above explanations in order to avoid repetition.

• Fig. 1a eine Schnittansicht eines Tors entlang der Linie A-A in Fig. 1b, aus der eine in einer Bodenstruktur versenkte Einrichtung zur Begrenzung einer Verformung eines Torblatts mit einem Halteelement gemäß einer Ausführung der Erfindung ersichtlich ist, das in seiner von der Bodenstruktur hinausragenden Aktivstellung dargestellt ist;
• Fig. 1b eine Draufsicht auf die in Fig. 1a gezeigte Einrichtung zur Begrenzung der Verformung des Torblatts, wobei das in einem Gehäuse verschiebliche Halteelement durch eine Durchbrechung eines Anschlagelements hindurchragt;
• Fig. 2 eine auseinandergezogene perspektivische Ansicht der einzelnen Teile der in Fig. 1 dargestellten Einrichtung zur Begrenzung der Verformung des Torblatts;
• Fig. 3a eine Schnittansicht entlang der Linie A-A in Fig. 3b, wobei das Halteelement gemäß einer weiteren Ausführung der Erfindung im Hinblick auf ein von oben nach unten schließendes Torblatt ausgebildet ist;
• Fig. 3b eine Draufsicht auf die Einrichtung zur Begrenzung der Verformung des Torblatts gemäß Fig. 3a;
• Fig. 4a eine Schnittansicht entlang der Linie A-A in Fig. 4b, wobei das Halteelement gemäß einer weiteren Ausführung der Erfindung durch ein im Inneren des Torblatts anordenbares stiftförmiges Eingriffsteil mit einer Führungsrolle und weiters durch ein keilförmiges Eingriffsteil gebildet ist;
• Fig. 4b eine Draufsicht auf die Einrichtung zur Begrenzung der Verformung des Torblatts gemäß Fig. 4a;
• Fig. 4c eine Schnittansicht entlang der Linie B-B in Fig. 4b;
• Fig. 5a eine Schnittansicht entlang der Linie A-A in Fig. 5b, wobei das Halteelement gemäß einer weiteren Ausführung der Erfindung durch ein blockförmiges Eingriffsteil mit einem keilförmigen Endabschnitt gebildet ist;
• Fig. 5b eine Draufsicht auf die Einrichtung zur Begrenzung der Verformung des Torblatts gemäß Fig. 5a;
• Fig. 5c eine Schnittansicht entlang der Linie B-B in Fig. 5B; und
• Fig. 6 eine schematische Ansicht des Schiebetors mit über der Länge des Torblatts verteilt angeordneten Halteelementen.

The invention will be explained below with reference to preferred embodiments illustrated in the drawings, to which, however, it should not be restricted. In detail, in the drawings:

• Fig. 1a a sectional view of a gate along the line AA in Fig. 1b in which a device, which is recessed in a floor structure, for limiting a deformation of a door leaf with a holding element according to an embodiment of the invention is shown, which is shown in its active position protruding from the floor structure;
• Fig. 1b a top view of the in Fig. 1a shown means for limiting the deformation of the door leaf, wherein the displaceable in a housing holding member protrudes through an opening of a stop element;
• Fig. 2 an exploded perspective view of the individual parts of Fig. 1 illustrated means for limiting the deformation of the door leaf;
• Fig. 3a a sectional view taken along the line AA in Fig. 3b wherein the holding member is formed according to a further embodiment of the invention with respect to a top-down closing door leaf;
• Fig. 3b a plan view of the means for limiting the deformation of the door leaf according to Fig. 3a ;
• Fig. 4a a sectional view taken along the line AA in Fig. 4b wherein the holding element according to a further embodiment of the invention by an arrangeable in the interior of the door leaf pin-shaped engaging part with a guide roller and further formed by a wedge-shaped engaging part;
• Fig. 4b a plan view of the means for limiting the deformation of the door leaf according to Fig. 4a ;
• Fig. 4c a sectional view taken along the line BB in Fig. 4b ;
• Fig. 5a a sectional view taken along the line AA in Fig. 5b wherein the holding member is formed according to a further embodiment of the invention by a block-shaped engagement part with a wedge-shaped end portion;
• Fig. 5b a plan view of the means for limiting the deformation of the door leaf according to Fig. 5a ;
• Fig. 5c a sectional view taken along the line BB in Fig. 5B ; and
• Fig. 6 a schematic view of the sliding gate with distributed over the length of the door leaf arranged holding elements.

Fig. 1a shows a sliding gate 1 with a (not shown in the figures) sliding mechanism is executed. The sliding door 1 has a particularly fire-resistant door leaf 2, which can be transferred between an open position and a closed position. In the open position, the door leaf 2 releases a passage opening which adjoins a substantially flat, barrier-free floor structure 3, whereby under the floor structure 3 next to a floor etc. also a large-area plate element (not shown in the drawing) should be understood. The passage opening thus extends in the open position of the door leaf 2 without steps, projections, or other barriers to the flat floor structure 3, so that in normal cases an unhindered passage or a passage through the passage opening is possible. If necessary, especially in case of fire, the passage opening is to be closed with the door leaf 2 to separate a fire section from the other premises.

In known fire doors 1 it has been observed that the action of heat on the door leaf 2 in the event of a fire causes a considerable deformation of the door leaf 2, which is to be avoided for various reasons. Thus, with a fire protection door 1, the fire resistance or room closure can be impaired.

On the other hand, in the case of gates 1 which are exposed to strong gusts of wind, for example, the sliding mechanism of the gate 1 may be affected from a certain degree of deformation of the gate 2, which may necessitate replacement of the gate 2.

In order to prevent the deformation of the door leaf 2 as needed, especially in a fire or a storm, as far as possible or limited to a tolerable level, according to the invention in the soil structure 3, a holding element 4 is added, which is lowered between a fully lowered into the soil structure 3 normal position and an active position projecting above a plane defined by the planar floor structure 3 is displaceable.

In the out Fig. 1a apparent active position of the holding element 4 is a deformation of the door leaf 2 perpendicular to its longitudinal extension plane 2 'limited by the door leaf 2 in the event of heat-induced deformation or change in position of the door leaf 2 on the support member 4 comes to rest and is prevented in this way from further deformation ,

For transferring the retaining element 4 into the active position, a drive device 5 connected to a fire sensor or wind sensor (not shown in the figures) is provided, which is activated in the event of fire or storm, and the retaining element 4 upwards in the region of the lower end portion of the Torblatts advances. In the preferred exemplary embodiments illustrated in the drawing, in each case an electromagnet 6 in conjunction with springs 7 is provided as drive device 5, in particular as shown in the exploded view in FIG Fig. 2 seen. In the normal position, in which the holding element 4 is hidden in front of the observer completely disposed within the floor structure 3, the electromagnet 6 holds the holding element 4 against the force of the springs 7 down. In the event of fire or storm, the fire sensor or the storm sensor interrupts the power supply of the electromagnet 6, with the result that the holding element 4 no longer held by the electromagnet 6 due to the force of the biased springs 7 on a displaceably mounted carriage 8 in the Active position is moved.

When transferring the retaining element 4 into the active position, the retaining element 4 slides through an opening 9 of a plate-shaped stop element 10, on which the holding element 4 comes into contact with the active position under the action of the spring element 7. The stop element 10 is flush with the rest of the flat floor structure, so that apart from the provided for the passage of the support member 4 opening 9 of the stop element 10 corresponding to the rest of the floor structure level, uninterrupted arrangement of the stop element 10 is achieved.

The plate-shaped stop element 10 is supported on four pin-shaped fastening elements 11 in the manner of sliding pins whose ends remote from the stop element 10 are mounted on a trough-shaped housing 12, in which the holding element 4 is received in the normal position. The carriage 8 is slidably mounted on recesses 14 of the carriage 8 to the pin-shaped fasteners 11, wherein each pin-shaped fastener 11 in a between the trough-shaped housing 12th and the carriage 8 with the interposition of discs 15 acting coil spring 7 'is arranged.

In the embodiments according to the Fig. 1 to 3 the retaining element 4 is formed in each case by a longitudinally substantially U-shaped rail 16 with a base plate 16 'and legs 16 "extending upwards from the base plate 15. In the active position of the retaining element 4, the legs 16" surround the lower end section of the door leaf from the outside 2. The in Fig. 1 and 2 illustrated embodiment of the rail 16 is in particular for a Sideways sliding gate 1 suitable, the closing direction is illustrated in the drawing with an arrow 17.

At the in Fig. 3 shown sliding door 1, the door leaf 2 is lowered for transfer to the closed position in the direction of arrow 17 perpendicular to the floor structure 3. In both cases, the respectively provided closing direction of the door leaf 2 by the course of the legs 16 "of the respective rail-shaped support member 4 is taken into account by the rail 16 each having a portion 16a, in which the legs 16" in the closing direction 17 of the door leaf. 2 approach each other as seen.

The Fig. 4 and 5 each show an embodiment of the invention, in which the holding element 4 in the active position within a bottom structure 3 facing end face 2 '' of the door leaf 2 can be arranged. For this purpose, the door leaf 2 on its end face 2 '' has a centrally arranged, groove-shaped recess 18 which extends at least in the region of the holding element 4.

According to Fig. 4 is the holding member 4 by a pin-shaped engaging member 19 which is received in a guide roller 19 ', and further by a plan view in accordance Fig. 4b wedge-shaped engagement part 20 is formed, which widens in the closing direction of the door leaf 2. When closing the door 1, the door leaf 2 first encounters the wedge-shaped engagement part 20 and is then guided along the guide roller 19 'of the pin-shaped engagement part 19.

At the in Fig. 5 In the embodiment shown, only a single, block-shaped engagement part 21 is provided, wherein an end region 21 'of the engagement part 21 widens wedge-shaped in the closing direction of the door leaf 3.

In the exemplary embodiments shown, the housing 12 and an optionally provided rail 16 have a width of substantially 50-200 mm, in particular approximately 70 mm, extending in the longitudinal extension direction of the door leaf 2. In order to avoid the deformation over the entire width of the door leaf 2, are provided a plurality of spaced-apart, distributed over the door width arranged holding elements 4, wherein it is usually advantageous if the holding elements 4 at a distance between 2 and 12 m, preferably 6 m, are arranged. In Fig. 6 an embodiment is shown in which three retaining elements 4 are arranged distributed over the length of the door leaf 2 and the closed by the door leaf 2 passage opening 22. In order to absorb deformation forces acting on the door leaf 2 as efficiently as possible, the holding elements 4 are rather centrally, ie spaced from the edge portions of the passage opening 22, arranged. The drive devices 5 are in this case connected in parallel with a fire sensor or a storm sensor, so that in case of fire or storm, all holding elements 4 are activated substantially simultaneously.

In one embodiment, not shown in the figures, the sliding gate 1 is displaceable in the closing direction to a laterally limiting the passage opening wall. In order to further limit the limitation of the deformation of the door leaf 2, a further retaining element 4 is received in the facing wall section. The further holding element 4 is displaceable between a fully recessed in the wall portion normal position and a projecting beyond a plane defined by the wall portion active position by means of a drive device 5. On a stationary from the facing wall portion projecting retaining rail, in which the door leaf is retracted in the transfer to the closed position, can thus be dispensed with. The function of the retaining element 4 corresponds to the above-described retaining element 4, which is integrated in the floor structure 3.

Claims (15)

Sliding gate, with a door leaf (2), which can be transferred between an open position and a closed position, wherein the door leaf (2) in the open position, a passage opening (22) releases, having a substantially flat, barrier-free floor structure (3), characterized in that a holding element (4) is accommodated in the floor structure (3) and displaceable between a normal position sunk completely in the floor structure (3) and an active position projecting beyond a plane defined by the flat floor structure (3) by means of a drive device (5) is, so that the holding element (4) in the active position, a deformation of the door leaf (2) perpendicular to its longitudinal extension plane (2 ') limited. Sliding gate according to claim 1, characterized in that the drive device (5) is connected to a fire sensor, so that the drive device (5) is activated in case of fire. Sliding gate according to claim 1, characterized in that the drive device (5) is connected to a wind sensor, so that the drive device (5) is activated in the event of a storm. Sliding gate according to one of claims 1 to 3, characterized in that as drive device (5) at least one spring element (7, 7 ') and an electromagnet (6) are provided, wherein in the normal position of the electromagnet (6), the holding element (4) against the force of the spring (7, 7 ') holds down. Sliding gate according to one of claims 1 to 4, characterized in that the holding element (4) is mounted on a displaceably mounted carriage (8). Sliding gate according to claim 5, characterized in that the carriage rests in the active position on a preferably plate-shaped stop element (10), wherein the stop element (10) is preferably arranged flush with the rest of the floor structure (3). Sliding gate according to claim 6, characterized in that the stop element (10) has at least one opening (9) through which the holding element (4) protrudes in the active position. Sliding gate according to claim 6 or 7, characterized in that the stop element (10) is arranged on pin-shaped fastening elements (11), which are received in a substantially trough-shaped housing (12) for receiving the retaining element (4) in the normal position. Sliding gate according to claim 8, characterized in that preferably each pin-shaped fastening element (11) in a between the trough-shaped housing (12) and the carriage (8) acting coil spring (7 ') is received. Sliding gate according to one of claims 1 to 9, characterized in that a U-shaped rail (16) is provided as the holding element (4), whose legs (16 '') engage around the door leaf (2) in the active position. Sliding gate according to claim 10, characterized in that the U-shaped rail (16) has a portion (16a) in which the legs (16 '') approach one another in the closing direction of the door leaf (2). Sliding gate according to one of claims 1 to 11, characterized in that the door leaf (2) has a groove-shaped recess (18) at an end face (2 '') which faces in the closed position of the floor structure (3). Sliding gate according to claim 12, characterized in that a pin-shaped engagement part (19), preferably with a guide roller (19 '), is provided as the holding element (4). Sliding gate according to one of claims 1 to 13, characterized in that in the longitudinal direction of the passage opening (22) at least two holding elements (4) are arranged distributed, wherein the holding elements (4) preferably of edge portions of the passage opening (22) are arranged spaced apart, and in particular arranged such that the holding elements (4) the passage opening (22) in the longitudinal direction divided into substantially equal sections. Sliding gate according to one of claims 1 to 14, characterized in that the door leaf (2) in the closing direction is displaceable up to a passage which laterally delimits the wall, a further holding element (4) being accommodated in a wall section facing the door leaf (2), which is displaceable by means of a drive device (5) between a normal position sunk completely in the wall section and an active position projecting beyond a plane defined by the wall section.

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