EP1748135B1 - Fireproof door with carriage and guide rails - Google Patents

Description

The invention relates to a fire protection door or a door with at least one door leaf element and a set consisting of a chassis for the at least one door leaf element of the fire door or door, comprising at least two support rollers, which are arranged rotatably about the same support roller rotation axis or axes parallel to each other, wherein the landing gear can be arranged at an upper end of a door leaf element, so that at least a first of the support rollers on a first side of the longitudinal center plane of the door leaf element and at least a second of the support rollers on a second side of the longitudinal center plane of the door leaf element comes to rest and with at least two rails.

In particular, such trolleys should ensure easy movability of the fire door or door. Most of them carry the entire weight of the door and also take over their precise guidance. The chassis is arranged to roll on a running rail.

For these purposes, trolleys have become known in which the support roller and the running rail each have a profile, that is one. Have cross-sectional shape, with which forces can be transmitted in the direction of the support roller rotation axis of the support roller to the track, so that the position of the at least one support roller is fixed on the running rail in the direction of the support roller rotation axis. This has been achieved, for example, by the fact that the profile of the carrying roller essentially represents a negative of the profile of the running rail.

A disadvantage of this known design that both side guide and carrying capacity are severely limited. Furthermore, occurs here in the process of the door on a high friction. If a door equipped with it is moved and thereby experiences a lateral deflection, ie a deflection transversely to the direction of the method, a restoring force only gradually builds up in this lateral deflection. Only after a certain deflection so the gate is moved back into its intended path. The side guide of such a gate is therefore inaccurate.

There are also known drives for fire doors, which have both sides of the longitudinal center plane arranged support rollers.

Such a constructed chassis for a fire sliding door is for example from the German utility model DE 86 05 369.2 U known. In it, the individual door leaf elements of the fire doors are each suspended with its own chassis on a running rail. The individual wheels of the chassis are all the same structure and have the same profile. The lateral guide is realized via lateral contact surfaces in the running rail.

A disadvantage of this known design is that the contact surfaces must be located very close to the support rollers. As a result, there is a risk that, if the distance of the contact surfaces is greater than the outer distance of the support rollers, clearance occurs. This in turn does not allow accurate positioning of the door, which can lead to leaks and therefore reduced fire safety. On the other hand, there is a risk that, if the distance of the contact surfaces is smaller than the outer distance of the support rollers, the chassis can jam in the track rail. This poses a great danger, because in this case the door can not be closed securely and thus there is no fire protection at all.

From the GB 1235655 A a landing gear for a sliding door emerges. The chassis has a support roller, a sliding element and a running rail. The support roller and the sliding element are connected to each other via a spindle. The support roller has a V-shaped inwardly curved profile, wherein the associated track rail is shaped such that the support roller touches the running rail only at two delimited contact areas. The slider slides on a second track and serves to support the chassis against a vertical load.

From the GB 1084812 A goes out a chassis for a sliding door of a motor vehicle. The chassis has two successively arranged rollers, wherein one of the rollers is designed as a carrying roller and is shaped such that it has an inwardly curved approximately V-shaped profile and rests on a running rail in two delimited contact areas. The second role is designed only as a leadership role.

In the DE 19620045 C1 a landing gear for a sliding wall element is disclosed. The chassis comprises two carrying rollers, both of which roll on a running track. One of the support rollers has such an inwardly curved approximately U-shaped Profile on that the support roller over the entire surface rests on the running rail. The other support roller is flat.

From the US 4467562 is a chassis for a fire door out. The chassis has four support rollers, wherein two support rollers are arranged opposite each other along a longitudinal center plane of the fire protection door. The support rollers are guided in a U-shaped rail, wherein the support rollers are designed such that they come to rest over the entire surface within the U-shaped rail.

The closest prior art is the AT 397 276 considered. It discloses a fire door according to the preamble of claim 1.

It is therefore the object of the present invention, a fire protection door or a door with at least one door leaf element and a set consisting of a chassis for the at least one door leaf element of the fire door or door and at least two rails in such a way that on the one hand a good tightness and so that a good fire protection is guaranteed, and that on the other hand, however, a reliable closing of the door or the door is guaranteed at all times. In addition, the chassis should have a high load capacity and ensure good lateral guidance.

This object is solved by the features of claim 1.

In this case, a contact region can counteract a displacement in a first direction parallel to the support roller rotation axis, and the other contact region can counteract a displacement in the opposite direction parallel to the support roller rotation axis. The profile of the first support roller and the profile of the first track rail is designed such that first support roller and the profile of the first track rail is designed such that they touch at two defined points along a circumferential line of the at least one support roller. As a result, a particularly accurate determination of the position of the chassis on the track rail is possible. Since at the same time in both areas a contact of the first support roller and the first track is made, thus a deflection in each of the two directions is prevented. The force counteracting a deflection acts immediately, which means even with slight deflections. Unlike support rollers, which have only one - albeit large - contact area, in the solution according to the invention no initial deflection is necessary to build such a force first. Such a first support roller can therefore ensure an exact side guide, which provides a side deflection directly resistance. At the same time, easy movability is achieved. In addition, the suspension does not need to be adjusted because the two contact areas allow self-adjustment.

The second support roller has a profile that can not transmit forces in the direction of the support roller rotation axis. Thus, this second support roller can absorb part of the weight of the door, such as a fire door. Since this second support roller itself can transmit no axial forces, the position of the chassis is transverse to the process direction further determined only by the first carrier role. So jamming of the chassis can be effectively prevented.

The support rollers are arranged opposite one another on the same axis of rotation or on mutually parallel axes of rotation, so that in use at least one of the support rollers on a first side of the longitudinal center plane of the door leaf element and at least one other of the support rollers on a second side of the longitudinal center plane of the door leaf element comes to rest. Thus, a particularly simple, but in particular symmetrical structure can be achieved.

In this context, at least one further running rail is provided, on which the at least one second carrying roller can roll. This second track then has a cooperating with the second support roller cross-sectional shape, so that the position of the second support roller in the direction of the axis of the second support roller is determined only indirectly by the interaction of the first support roller and the first track. This ensures that the second support roller transmits no axial forces and therefore can not lead to a jamming of the door or the door. Thus, the shape of each track can be tailored to the particular type of support roller and thus to the particular task of guiding and / or wearing.

The profile of the first support roller and the profile of the first track rail is designed such that first support roller and the profile of the first track rail is designed such that they touch at two defined points along a circumferential line of the at least one support roller. As a result, a particularly accurate determination of the position of the chassis on the track rail is possible.

According to a preferred embodiment of the invention, the at least one first support roller has a substantially V- or U-shaped, preferably inwardly curved, profile, whereby the first support roller can be easily placed from above on the track and a door equipped with it can be hung. In this way, moreover, a precise lateral positioning of the door leaf element is possible in a simple manner.

By means of the at least one door leaf element, a fire protection door or a door of any width can be assembled.

It can be provided that the at least one second support roller has a substantially planar or convex profile. As a result, the associated track can be particularly simple, especially designed flat. Also, this increases the carrying capacity of the second support roller. Moreover, this ensures that no lateral forces are transmitted to the second support roller and therefore it can not lead to jamming of the door or the door.

In this context, it can be provided that the rails are integrally formed from a rail profile. As a result, a particularly easy to manufacture design is possible, which also provides an improved tightness. at This design is also ensured that the distance from one rail to the other is always maintained exactly. Thus, all decisive for a good traversing distances already in the production of the chassis and the rails are set.

In this case, a recess may be provided on the underside of the door leaf element, which, when using the door leaf element in a door or a door, can accommodate a bottom-mounted guide roller. Hereby, the leadership of the door or the door is also guaranteed at the bottom. In this way, the door or the door can also be guided on the underside and thus also withstands loads resulting from pressure differences between the two sides of the door or the door. As a result, both leadership and tightness can be further improved.

In this context, at least one lateral guide surface can be provided in the recess. At this, the leadership can attack and thus ensure a well-defined side guide in the lower region of the door or the door. As a result, the lateral guide can have less frictional resistance and ensure particularly precise guidance.

It can also be provided two or more door leaf elements. These can together form a fire protection door or a door. In this case, for example, by tongue and groove connections a simple assembly of the individual door leaf elements possible to a gate or a door. It can be formed with several standard door leaf elements gates and doors of any width.

It can further be provided in the set at least one roller, which is on the underside of the door substantially with its axis of rotation in the vertical direction can be installed, so that in use the roller can penetrate into the recess. Thus, the roller can be optimally adapted for their function for lateral guidance on the recess on the underside of the door leaf element or the elements. This can be turned off already in the production of a good interaction of leadership and recess and thus a good and accurate leadership.

It can be provided that the roller has a profile which cooperates in use with the or the lateral guide surfaces. Due to the special selection of a profile for the roller can be ensured that on the one hand a good side guide is guaranteed in the lower region of the door or the door, on the other hand, however, no increased friction, but no jamming occurs. For this purpose, the profile can be curved, for example, to the outside. Alternatively, it may just be formed with rounded edges. This ensures that such a constructed door or door is easily movable and at the same time accurately positioned.

It is in connection with the invention, a fire door or a door with at least one door leaf element and a set consisting of a chassis for a door leaf element of a fire door or a door described which consists of at least two support rollers, which are about the same axis or mutually parallel axes are rotatably arranged. In this case, the first support roller on a profile which can transmit axial forces, so that the position of the first support roller is fixed in the direction of the axis, while the second support roller has a profile which can not transmit axial forces, so that a displacement of the second support roller in Direction of the axis is possible. In this case, a door equipped with such a landing gear or a door can hang freely on the carrying rollers without any lateral forces. In this way it is ensured that the door can move freely and without much resistance from an open to a closed position. With this configuration, it is possible to set the position of the door or the door in a direction transverse to the central longitudinal plane exactly, but without running the risk that deteriorate the rolling properties. Such a chassis guarantees easy mobility despite a precise Positioning, which properties are necessary for a secure closing and a good seal.

• Fig. 1a einen Querschnitt durch ein aus mehreren Türblattelementen aufgebautes Brandschutztor,
• Fig. 1b einen Querschnitt durch ein aus zwei Türblattelementen aufgebautes Tor mit weiteren Einzelheiten des Stoßes und der beiden Endflächen,
• Fig. 2a einen Querschnitt durch ein einzelnes Türblattelement mit sowohl einer Nut als auch mit einer Feder,
• Fig. 2b einen Querschnitt durch ein einzelnes Türblattelement mit zwei Nuten,
• Fig. 2c einen Querschnitt durch ein einzelnes Türblattelement mit zwei Federn,
• Fig. 3 einen Querschnitt durch das federseitige Ende einer ersten Blechschale,
• Fig. 4 einen Querschnitt durch das nutseitige Ende einer ersten Blechschale,
• Fig. 5a einen Querschnitt durch ein Türblattelement mit einem einseitig vorstehenden Profil und einem die weitere Nut verschließendem Formkörper,
• Fig. 5b einen Querschnitt durch ein Türblattelement mit einem die erste Nut verschließendem Formkörper,
• Fig. 6 eine erste Ausführungsform eines Fahrwerks für ein Türblattelement eines Brandschutztores und einer Laufschiene,
• Fig. 7 eine erste Ausführungsform eines Türblattelementes mit einem an der Oberseite angeordneten Fahrwerk und einer an der Unterseite angeordneten Ausnehmung,
• Fig. 8 eine zweite Ausführungsform eines Fahrwerks für ein Türblattelement eines Brandschutztores und einer Laufschiene,
• Fig. 9 eine dritte Ausführungsform eines Fahrwerks für ein Türblattelement eines Brandschutztores und einer Laufschiene,
• Fig. 10 eine zweite Ausführungsform eines Türblattelementes mit einem an der Oberseite angeordneten Fahrwerk und einer an der Unterseite angeordneten Ausnehmung,
• Fig. 11 eine dritte Ausführungsform eines Türblattelementes mit einem an der Oberseite angeordneten Fahrwerk und einer an der Unterseite angeordneten Ausnehmung.

The invention will be further described by way of example with reference to the accompanying drawings in which embodiments are shown by way of example. Showing:

• Fig. 1a a cross section through a constructed of several door leaf elements fire door,
• Fig. 1b a cross section through a built-up of two door leaf elements gate with further details of the joint and the two end faces,
• Fig. 2a a cross section through a single door leaf element with both a groove and a spring,
• Fig. 2b a cross section through a single door leaf element with two grooves,
• Fig. 2c a cross section through a single door leaf element with two springs,
• Fig. 3 a cross section through the spring-side end of a first sheet metal shell,
• Fig. 4 a cross section through the groove-side end of a first sheet metal shell,
• Fig. 5a a cross section through a door leaf element with a one-sided projecting profile and a further groove closing moldings,
• Fig. 5b a cross section through a door leaf element with a first groove closing the molding,
• Fig. 6 a first embodiment of a chassis for a door leaf element of a fire door and a running rail,
• Fig. 7 a first embodiment of a door leaf element with a chassis arranged on the top and a recess arranged on the bottom,
• Fig. 8 a second embodiment of a chassis for a door leaf element of a fire door and a running rail,
• Fig. 9 a third embodiment of a chassis for a door leaf element of a fire door and a running rail,
• Fig. 10 A second embodiment of a door leaf element with a chassis arranged on the top and a recess arranged on the bottom,
• Fig. 11 a third embodiment of a door leaf element with a arranged on the top chassis and arranged on the bottom recess.

With reference to the figures, numerous aspects of a fire door will be explained in more detail by way of example in the following. The fire protection door shown consists of several individual door leaf elements 40, 50, 60, etc., which lined up form a gate or door leaf. In this description, the terms "gate" and "door" are not to be further distinguished. Rather, it should be clear that the statements made for a goal apply equally to a door, and vice versa.

Each door leaf element has a core 15 of heat-insulating material, which is enveloped by a metal jacket. Like from the FIGS. 2a to 2c As can be seen, the metal jacket is formed from a first sheet metal shell 31 and a second sheet metal shell 32. The two sheet metal shells 31 and 32 surround the core 15 only in partial areas, in a partial area near the longitudinal center plane L, the core 15 is not covered by any sheet metal shell. However, this part is located after the joining of several door leaf elements inside the gate, so that on the outside still creates a closed metal jacket. The sheath-free zone, however, effectively prevents the formation of a thermal bridge from one side of the gate to the other.

Like in the FIG. 1b an intumescent material may be applied between the elements, ie in the element joint, to provide an even greater barrier to the passage of gases and heat. This material foams under the influence of temperature and / or increases its volume, whereby an even better sealing of the labyrinth joint in the element impact can be achieved.

According to a first variant as in FIG. 2a On the door leaf element on one side a first spring 3 and on a second side a first groove 4 are formed. At the in FIG. 2a Left first end face 1 of a door leaf element shown a first spring 3 is arranged. On the second end face 2 of the door leaf element shown on the right is a first groove 4 formed. At the end face 12 of the first spring 3, a further groove 7 is formed. At the base 5 of the first groove 4, a further spring 6 is arranged. The springs and grooves are matched to one another such that the profile of a first end face 1 can be inserted into the profile of a second end face 2 of a similarly constructed door leaf element. The profiles of grooves and springs complement each other in such a way that over the cross-section of the gate results in a shock with a zigzag course. This zigzag course ensures an improved sealing effect of the labyrinth seal formed thereby.

According to another variant as in FIG. 2b is formed on the door leaf element on both sides of a first groove 4. This can be joined together with a counterpart, that is to say with a first spring 3 formed on both end faces. Such opposite leaf door element is in Figure 2c shown. When merging the elements after FIGS. 2b and 2c The result is the same impact with a zigzag course as when joining several elements as in FIG. 2a ,

The exact course of the frontal, formed from a sheet metal shell 31 is in the FIGS. 3 and 4 shown. In this case, the outer side surface 8 of the first spring 3 with respect to the longitudinal center plane L at a first angle α is obliquely executed on the first end face 1 shown on the left. Likewise, at the second end face 2 shown on the right, the inner side surface 9 of the first groove 4 is inclined relative to the longitudinal center plane L at precisely this first angle α. The first angle α drawn in the exemplary embodiment is approximately 2 °, but it may also have other suitable values. However, it should be ensured that the individual door leaf elements are held together by the wedge effect. Alternatively or additionally, the inner side surface 11 of the further groove 7, which is arranged on the end face 12 of the first spring 3, could be designed obliquely with respect to the longitudinal center plane. In this case, the outer side surface 10 of the further spring 6, which is arranged on the base surface 5 of the first groove 4, would be executed obliquely with respect to the longitudinal center plane L.

The first end face 1 and the second end face 2 extend at a second angle β obliquely with respect to the longitudinal center plane L of the door leaf element. This results in an assembly of the individual door leaf elements at each impact a V-shaped recess.

In the FIG. 5a is a frontal conclusion of a fire door with a one-sided projecting profile 16 shown. In this case, on the side of the first spring 3 in the further groove 7, a closure profile with a molded body 20 is inserted. The molded body 20 has a shape corresponding to the inner contour of the further groove 7, so that it is securely held in the further groove 7. The unilaterally projecting profile 16 is angled at its projecting free end 17 in the closing direction of the door. Therefore, when closing the door, it is possible for a frame-mounted, oppositely shaped profile 19 to engage behind its free end 18 and thus produce a labyrinth-like seal. At its non-protruding other end, the profile 16 on a conclusion 21. This conclusion 21 completes the outer contour of the outermost door leaf element to a full rectangle, so that there is a flush surface. As a result, even the outermost door leaf element can be constructed the same as all other door leaf elements and it still results in a clean conclusion, without that on the front side 12 of the outermost door leaf element an outwardly open groove or a protruding spring would be visible.

In the FIG. 5b is a frontal conclusion of a fire door with a shaped body 33 is shown. The molded body 33 may be surrounded with a metal jacket in the form of a front C-profile 35 and may be inserted into the first groove 4. The molded body 33 thus forms a conclusion and completes the outer contour of the outermost door leaf element to a full cross section, so that there is a flush or closed surface. As a result, even the outermost door leaf element on the inlet side of the door leaf can be constructed the same as the other door leaf elements and it still results in a clean conclusion, without that on the front side of the outermost door leaf element an outwardly open groove or a protruding spring would be visible.

As in the FIGS. 6 and 7 shown, a landing gear is arranged on the top of a door or a door leaf element. At this, the gate or the door leaf element along rails 27 and 28 are moved. The chassis 27 and 28 consist in the example shown of a one-piece track profile 26. The chassis comprises at least a first support roller 21 which is arranged on a first side of the longitudinal center plane L of the door leaf element, and a second support roller 22, on a second side of the Longitudinal plane L of the door leaf element is provided.

The first support roller 21 has a profile which can transmit axial forces. In the illustrated embodiment, this is a V-shaped inwardly curved profile. Alternatively, however, any other shape would be possible that can transmit axial forces, such as a U-shaped profile or an outwardly curved profile, which then with a recess in an inwardly curved running rail could work together. In the example shown, the axial position of the first support roller and thus of the chassis and the door leaf element is determined together with the outwardly curved first rail 27.

The profile of the first support roller 21 touches the profile of the first track 27 in two opposite, separate contact areas 37. In this case acts in the FIG. 6 Right hand contact area 37 of a deflection to - on the FIG. 6 upholstered - left opposite. The opposite, in the FIG. 6 On the other hand, the contact area 37 shown on the right prevents a deflection after - again on the FIG. 6 related - right. In the example shown, both areas are approximately punctiform and therefore correspond to points of contact 36. In a method of the carrier roller 21 along the track 27, the points of contact move along the track 27 on a straight line (not shown in the figures) and along the circumference of the carrier roller 21 A circumferential line 38. Alternatively, however, not lying within the scope of the invention, but also wider contact areas 37 could be provided. The combination of a wider contact area 37 with a relatively small touch point 36 would be conceivable.

The arranged on the opposite side of the longitudinal center plane L support roller 22 has a profile which can not transmit axial forces. In the example shown, it is a flat profile. Alternatively, but here, for example, an outwardly curved profile conceivable. The profile cooperates with the second running rail 28 in such a way that no axial forces can be transmitted. The axial definition of the second support roller 22 and thus of the chassis and the door leaf element is done exclusively on the first support roller 21 and the first track rail 27. In this way, it is possible to determine the exact axial position of the chassis while ensuring a good mobility. Jamming or tilting is effectively avoided.

With reference to FIG. 7 Now, the provided on the underside of a door leaf element guide is described. For this purpose, a recess 24 is provided in the door leaf element, in which a guide roller 29 arranged on the bottom side engages. The guide roller 29 contacts the door leaf element on one or two opposite guide surfaces 25. By providing a guide in the lower end region of the door leaf element, this is also held on the underside. As a result, it not only hangs down freely from the carrying rollers, but is also accurately positioned on the underside in a direction normal to the central longitudinal plane. Such a suspended and guided gate can therefore close a wall opening more accurate and better and thus ensure improved fire protection.

The FIGS. 8 and 9 show further possible embodiments of the cross section of the track profile 26, in particular the track rail 28th

In the FIGS. 10 and 11 Further versions of trolleys with idlers 21 and 22 are shown. In the variant according to FIG. 10 the heat-insulating material 15 extends substantially over the entire height of the fire door, ie also up on the chassis up. In the variant according to FIG. 11 ends the heat-insulating material 15 just below the axis 23 of the chassis. The latter is therefore placed in this embodiment, the heat-insulating material 15.

Further embodiments according to the invention have only a part of the features described, wherein each feature combination, in particular also of various described embodiments, can be provided.

Claims (9)

1. Fireproof door having at least one door panel element (40, 50, 60) and component parts therefor, the component parts consisting of at least one

   • carriage for the at least one door panel element (40, 50, 60) of the fireproof door, comprising at least two support rollers (21, 22) which are mounted to be rotatable about the same support roller rotation axis (23) or about support roller rotation axes that are parallel to one another, the carriage being adapted to be mounted at an upper end of the at least one door panel element (40, 50, 60) so that, in use, at least a first (21) of the support rollers comes to lie on a first side of the central longitudinal plane (L) of the door panel element (40, 50, 60) and at least a second (22) of the support rollers comes to lie on a second side of the central longitudinal plane (L) of the door panel element (40, 50, 60), and at least two

   • guide rails (27, 28) on which the support rollers (21, 22) can be mounted so as to be capable of rolling along, the at least one second support roller (22) having a profile that is unable to transmit any forces in the direction of the support roller rotation axis (23),

   characterised in that the at least one first support roller (21) and a first of the guide rails (27, 28) each have a profile with which forces can be transmitted in the direction of the support roller rotation axis (23) from the first support roller (21) to the first guide rail (27), so that the position of the at least one first support roller (21) on the first guide rail (27) is fixed in the direction of the support roller rotation axis (23),
   in that the profile of the at least one first support roller (21) and the profile of the first guide rail (27) are configured such that, when the at least one first support roller (21) has been placed on the first guide rail (27), they make contact with one another at two contact regions (37) that are demarcated from one another along the circumference of the at least one first support roller (21), and
   in that the at least one first support roller (21) and the first guide rail (27) make contact with one another at two defined points (36) along a circumferential line (38) of the at least one first support roller (21).
2. Fireproof door according to claim 1,
   characterised in that the at least one first support roller (21) has a substantially V- or U-shaped, preferably inwardly domed, profile.
3. Fireproof door according to one of the preceding claims,
   characterised in that the at least one second support roller (22) has a substantially planar or outwardly domed profile.
4. Fireproof door according to one of the preceding claims,
   characterised in that the guide rails (27, 28) are formed in one piece from a guide rail section (26).
5. Fireproof door according to one of the preceding claims,
   characterised in that on the underside of the door panel element (40, 50, 60) is provided a recess (24) which, when the door is in use, is able to accommodate a guide roller (29) mounted on the floor.
6. Fireproof door according to claim 5,
   characterised in that at least one lateral guide surface (25) is provided in the recess (24).
7. Fireproof door according to one of the preceding claims, comprising at least two or more door panel elements (40, 50, 60).
8. Fireproof door according to one of claims 5 to 7, further comprising at least one guide roller (29) which can essentially be installed with its rotation axis (30) in the vertical direction, so that in use the roller (29) can penetrate into the recess (24).
9. Fireproof door according to claim 8,
   characterised in that the roller (29) has a profile that co-operates in use with the lateral guide surface or surfaces (25).

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