EP4191009B1 - High-speed folding gate - Google Patents

Description

The present invention relates to a folding door, in particular a so-called high-speed folding door, which opens and closes via a horizontal folding movement.

High-speed folding doors are often used at the end of buildings and are used to either open or close larger areas of a facade. In contrast to sliding gates, folding gates do not require any additional space on their sides, as the folding gate segments are extended or retracted in an accordion-like folding movement, but remain within the area of the folding gate. Such folding doors have short opening and closing times, so they are often used in cases where a large area of the facade of a building needs to be opened or closed. Such folding doors have proven themselves many times over, particularly on buildings for emergency services, industrial buildings or warehouses.

A construction known from the prior art is that the folding door has two wings on each side. The outer wing is rotated by 90° when opening, and the adjoining middle wing follows the folding movement due to a guide in the corresponding running rail. Such gates are controlled by means of a central drive, with a rotational movement of the drive being transmitted to the outer folding gate leaves using a rotary lever and corresponding linkages.

A problem that arises with this known construction is that relatively high leverage forces can occur, particularly under so-called wind loads. This means that the linkages used to transmit power are damaged relatively often and therefore need to be maintained or replaced. Furthermore, there is a relatively low efficiency of power transmission, since the lever acts on the corresponding folding gate leaf that is to be rotated in the vicinity of the bearing point.

A folding door according to the preamble of claim 1 is from the FR 2 928 169 A1 known.

The present invention is based on the task of providing a novel solution for realizing a folding door, which has greater robustness and in particular avoids the disadvantages mentioned above.

The task is solved by a folding door which has the features of claim 1. Advantageous developments of the invention are the subject of the dependent claims.

Just like known solutions from the prior art, the folding door according to the invention also initially has two wing-like folding door elements, which can be opened or closed as part of a folding movement. A first of the two folding door elements is rotatably mounted about a pivot axis and a second folding door element is movably connected to the first folding door element on one side about a further axis which runs parallel to the pivot axis. On an opposite second side, the second folding door element is guided displaceably and pivotably along a guide element, with the first folding door element being rotated about the pivot axis using a drive for opening and closing the folding door.

The solution according to the invention is characterized by the design of the drive. For this purpose, it is provided that the drive has a ring gear and a motor-driven pinion that interacts with the ring gear, the ring gear being arranged at a bearing point for the first folding door element and the pinion on the first folding door element, and the ring gear and the pinion interacting in such a way that The pinion for opening and closing the folding door moves along the ring gear, which has a radius of 200mm to 1000mm.

• zwei flügelartige Falttorelemente, wobei ein erstes der beiden Falttorelemente um eine Schwenkachse drehbar gelagert ist und das zweite Falttorelement an einer Seite um eine Achse, die parallel zur Schwenkachse verläuft, beweglich mit dem ersten Falttorelement verbunden ist,
• einen Antrieb, der dazu ausgebildet ist, zum Öffnen und Schließen des Falttors das erste Falttorelement um die Schwenkachse zu schwenken,
  • wobei der Antrieb einen Zahnkranz sowie ein motorgetriebenes, mit dem Zahnkranz zusammenwirkendes Ritzel aufweist,
  • wobei der Zahnkranz an einem Lagerpunkt für das erste Falttorelement und das Ritzel an dem ersten Falttorelement angeordnet ist und
  • wobei der Zahnkranz und das Ritzel derart zusammenwirken, dass das Ritzel zum Öffnen und Schließen des Falttors an dem Zahnkranz entlangfährt,

wobei das zweite Falttorelement an einer zweiten Seite, die der ersten Seite gegenüberliegt, entlang eines Führungselements verschieb- und verschwenkbar geführt ist und der Zahnkranz einen Radius von 200mm bis 1000mm aufweistAccording to the present invention, a folding gate is proposed which has:

• two wing-like folding door elements, a first of the two folding door elements being rotatably mounted about a pivot axis and the second folding door element being movably connected to the first folding door element on one side about an axis that runs parallel to the pivot axis,
• a drive which is designed to pivot the first folding door element about the pivot axis to open and close the folding door,
  • wherein the drive has a ring gear and a motor-driven pinion that interacts with the ring gear,
  • wherein the ring gear is arranged at a bearing point for the first folding door element and the pinion is arranged on the first folding door element and
  • wherein the toothed ring and the pinion work together in such a way that the pinion moves along the toothed ring to open and close the folding door,

wherein the second folding door element is guided displaceably and pivotably along a guide element on a second side, which is opposite the first side, and the toothed ring has a radius of 200mm to 1000mm

The advantage of the solution according to the invention is that the drive concept is extremely reliable and robust and no problems occur even at higher wind speeds, i.e. at higher wind loads. Since there are no large leverage forces, wear on the components used for the drive is significantly reduced and fewer repairs or maintenance work is required. The driving force acts relatively far forward on the outer leaf, i.e. away from the pivot point of the folding gate leaf, so that the power transmission is highly efficient.

It is preferably provided here that the toothed ring is arranged on a frame of the folding door that holds the first folding door element. The pinion can be driven by a motor, in particular a geared motor, which is also arranged on the first folding door element and on which the pinion is located directly. The motor is particularly preferably an electric motor.

To realize the rotary or pivoting movement, the toothed ring is preferably designed in the form of an arc or a segment of a circle and extends over an angular range of approximately 100° to 120°, preferably over approximately 110°. This ensures that both folding door elements are aligned vertically in the open state compared to the closed state. This means that a maximum opening of the gate can be achieved. The teeth provided on the ring gear and interacting with the pinion are preferably arranged on the outside of the ring gear. The ring gear preferably has a radius of approximately 250 mm to 1000 mm, particularly preferably a radius of approximately 500 mm.

Both folding door elements are preferably designed in such a way that they are sealed against one another when the folding door is closed. The guide element for the second folding door element preferably extends in a straight line, so that in the closed state both folding door elements are aligned with one another. It is preferably provided that the guide element runs on the top of the folding door and forms a corresponding guide for the second folding door element.

In order to be able to achieve stabilization in the closed state, it can also be provided that the folding door has an anchoring element in an area opposite the bearing point for the first folding door element, which interacts with the second folding door element in the closed state of the folding door and in particular the first or outer folding door element opposite side of the second folding door element locked or fixed.

Of course, it can be provided that the folding door according to the invention is designed as a folding door that opens on both sides, which then has two folding doors as described above, which are arranged mirrored to one another. Both sides of the double-sided opening folding door have their own drive and can therefore be operated independently of each other. It is then preferably provided that the two second, i.e. middle, folding door elements are sealed against one another in the closed folding door state.

Overall, the present invention provides a solution for realizing a folding gate that is characterized by its extremely robust and efficient drive.

Figuren 1 bis 3

Ansichten eines Ausführungsbeispiels eines erfindungsgemäßen Falttors, wobei die Figuren unterschiedliche Öffnungszustände des erfindungsgemäßen Falttors zeigen;

Figur 4

eine vergrößerte Ansicht des erfindungsgemäßen Antriebs des Falttors und

Figur 5

eine vergrößerte Ansicht der Führung des dem Antrieb gegenüberliegenden zweiten Falttorelements.

The invention will be explained in more detail below with reference to the accompanying drawing. Show it:

Figures 1 to 3

Views of an exemplary embodiment of a folding door according to the invention, the figures showing different opening states of the folding door according to the invention;

Figure 4

an enlarged view of the folding door drive according to the invention and

Figure 5

an enlarged view of the guide of the second folding door element opposite the drive.

In the figures explained in more detail below, a single-sided opening folding door with two folding door elements is shown as an exemplary embodiment according to the invention. However, as will be explained later, this folding gate shown in the figures can easily be supplemented to form a gate that opens on both sides.

The folding door, generally provided with the reference number 100 in the figures, which is shown in the Figures 1 to 3 is shown in different opening states, serves to either open or close a larger opening 250 - for example a building facade 200 shown only schematically. Like known folding doors, the folding door according to the invention also has two plate- or wing-like folding door elements 10 and 20, which when closed, in Figure 1 shown state, are aligned in one plane with one another and thereby completely close the opening 250 in the facade 200.

Both folding door elements 10 and 20 are pivotally connected to one another about an axis II via two or possibly more hinges 15, the outer or first folding door element 10 then being pivoted about a vertically extending first axis I when the folding door 100 is opened. The second folding door element 20 is guided on its side opposite the hinges 15 by means of a corresponding guide element 25 on a straight-line guide rail 30 running on the top of the folding door 100 and can thus slide along this guide rail 30, but at the same time also around a parallel to the axis I running third axis III can be rotated relative to the guide element 25 running along the guide rail 30. So if within the framework of When the folding door 100 is opened, the outer folding door element 10 is first swung out about the axis of rotation I located on the side of the folding door element 1, as shown in Figure 2 is shown, this results in the second folding door element 20 also performing a pivoting movement and at the same time being pulled along the guide rail 30 in the direction of the anchoring point for the first folding door element 10. This folding movement ends in the in Figure 3 shown state, in which both folding door elements 10 and 20 are aligned perpendicular to the plane of the opening 250 and thus the door 100 is opened to the maximum.

With regard to the properties described so far, the folding door 100 according to the invention corresponds to the solutions known from the prior art. The central component of the solution according to the invention is now the question of how the folding door 100 is driven, in particular how the first folding door element 10 is actively pivoted about the axis I.

For this purpose, the invention provides that the rotational movement of the first folding door element 10 is achieved using a ring gear 40 on the one hand and a motor-driven pinion 45 on the other. In the exemplary embodiment shown, the toothed ring 40 is fixed to a frame 110 of the gate 100 that holds the first folding gate element 10 and has a circular segment-like shape with an external toothing 41 that extends approximately over 100 ° to 120 °. The pinion 45 in turn is arranged on the top of the first folding door element 10. In particular, it is arranged on a geared motor 50, which is arranged on an adjustable console 55 which is fixed to the upper edge 11 of the first folding door element 10. The motor 50 is preferably an electric motor which is designed as a geared motor and directly transmits power to the pinion 45.

Gear rim 40 and pinion 45 now work together in such a way that rotation of the pinion 45 caused by the motor 50 causes it to run along the external teeth 41 of the gear rim 40. Since the first folding door element 10 is simultaneously pivotally mounted about the axis I - which represents the center of the circular shape of the ring gear 40 - this results in the movement of the pinion 45 along the outside of the ring gear 40 causing a rotational movement of the outer one Folding door element 10 causes. Due to the storage of the second folding door element 20 described above, the corresponding folding movement of both folding door elements 10, 20 towards one another is then automatically carried out.

In contrast to solutions known from the prior art, there is no need to transmit a rotary movement using a linkage or comparable measures. Instead, in the design of the drive according to the invention, there is a direct transmission of force between the pinion 45 and the ring gear 40, which leads to the rotational movement of the first folding door element 10, so that a significantly more robust drive system is obtained. Both ring gear 40 and pinion 45 can be designed with appropriate material thickness, so that even when the gate 100 is under high loads - for example due to wind - a reliable power transmission is achieved and there is no fear of damage to the drive.

The ring gear 40 has a radius of 200 mm to 1000 mm, particularly preferably a radius of approximately 500 mm. As a result, a force is then transmitted to it at a sufficient distance from the bearing point of the first folding door element 10 or from the axis I in order to initiate the pivoting or rotating movement.

As shown in particular Figure 3 can be removed, the pinion 45 will move slightly beyond an angular position of 90 ° - in relation to the plane of the gate opening 250 - when the gate is open. The ring gear 40 should therefore, as explained above, extend over an angular range of 100° to 120°, in particular over approximately 110°, in order to ensure that the gate can be opened completely, i.e. both folding gate elements 10, 20 approximately perpendicular to the plane of the gate opening 250 stand.

If it is desired for both folding door elements 10, 20 to pivot further outwards beyond 90°, the toothed ring 40 can, if necessary, be expanded to an even larger angular range. In this case, the guide rail 30 will then be arranged slightly obliquely relative to the door opening 250, such that it is in the area of the axis of rotation I for the first folding door element 10, i.e. in the illustrations the left side of the gate, is a slightly larger distance from the gate opening 250. With the help of this measure, it is taken into account that when the two folding door elements 10, 20 are pivoted beyond 90°, the guide element 25 for the second folding door element 20 moves slightly outwards.

As an alternative to the embodiment shown, the ring gear could also be designed as an arch with external teeth. In principle, it would also be conceivable in this case for the pinion 45 to run along an internal toothing of the ring gear arch, although in the variant shown a particularly efficient power transmission can be achieved and the relevant drive components can also be designed to be particularly robust. Furthermore, it would be possible to replace the sprocket with a chain stretched around a radius and to realize the pinion in the form of a chain wheel, which then interacts with the chain.

On the side of the gate 100 opposite the suspension point or the axis I for the first folding gate element 10, there is also an anchoring element 60 in the floor area (see in particular Figure 4 ) intended. This interacts with a bolt 27 provided on the second folding door element 20 in such a way that when the folding door 100 is closed, as in Figure 1 As can be seen, the bolt 27 engages in the guides 61, 62 of the anchoring element 60, so that it is secured both on the top via the guide 25 and on the underside via the anchoring element 60.

If necessary, sealing elements can be provided on the long sides of the two folding door elements 10, 20, which preferably extend over the entire height of the corresponding folding door element 10, 20 and ensure, in particular when the door 100 is closed, that the elements 10, 20 are sealed against one another. A seal to the side boundaries of the gate 100 can also be achieved in this way.

The concept according to the invention is therefore characterized by the fact that an extremely robust drive is available for the folding door 100, in which the risk of damage due to high wind loads is significantly reduced. At the same time The system is characterized by the fact that the drive is implemented with relatively few components.

Due to the optimized power transmission, the folding door according to the invention also has improved emergency stop properties. Since the opening speed of such gates is relatively high, as already mentioned, it must be ensured that the opening or closing movement is stopped in the shortest possible time if necessary, for example when a safety device is triggered, and the movement is reversed if necessary, which leads to the occurrence of high forces . Despite everything, the design of the drive according to the invention ensures that an immediate stop can be carried out even in such cases and the load on the individual components still remains within an acceptable range.

In the exemplary embodiment shown, the folding door is shown as a variant that opens on one side. However, it would easily be possible to create a variant that opens on both sides and then has a total of four folding door elements. All you have to do is put it in the Figures 1 to 5 The folding door shown can be combined with another, identically designed but mirrored folding door. In this case, both halves of the resulting folding door have their own drive and can therefore be opened or closed independently of each other. In comparison to solutions known from the prior art, in this case two separate drives are required, but the resulting advantages (independent opening of both gate halves, greater robustness against external forces and lower susceptibility to errors) clearly outweigh the resulting additional effort.

Claims (13)

1. Folding gate (100) comprising

   • two wing-like folding-door elements (10, 20), a first of the two folding-door elements (10) being mounted such that it can rotate about a pivot axis (I), and the second folding-door element (20) being connected to the first folding-door element (10) such that it can move on one side about an axis (II) which runs parallel to the pivot axis (I),

   • a drive configured to pivot the first folding door element (10) about the pivot axis (I) to open and close the folding door (100),

   - wherein the drive comprises a sprocket (40) and a motor-driven pinion (45) cooperating with the sprocket (40),

   - wherein the sprocket (40) is disposed at a bearing point for the first folding door element (10) and the pinion (45) is disposed on the first folding door element (10), and

   - wherein the sprocket (40) and the pinion (45) cooperate such that the pinion (45) moves along the sprocket (40) to open and close the folding gate (100),

   characterized in that

   in that the second folding door element (20) is guided on a second side, which is opposite the first side, such that it can be displaced and pivoted along a guide element (30), and

   that the sprocket (40) has a radius of 200mm to 1000mm.
2. Folding gate according to claim 1,
   characterized in that
   in that the sprocket (40) is arranged on a frame (110) holding the first folding door element (10).
3. Folding gate according to claim 1 or 2,
   characterized in that
   in that it has a motor (50), in particular a geared motor, on which the pinion (45) is arranged.
4. Folding gate according to claim 3,
   characterized in that
   that the motor (50) is an electric motor.
5. Folding gate according to any of the previous claims,
   characterized in that
   in that the sprocket (40) is of arcuate or circular-segment design and extends over an angular range of approximately 100° to 120°, in particular over approximately 110°, wherein the teeth (41) cooperating with the pinion (45) are preferably arranged on the outside of the sprocket (40).
6. Folding gate according to any of the previous claims,
   characterized in that
   that the sprocket (40) has a radius of 250mm to 1000mm, preferably a radius of about 500mm.
7. Folding gate according to any of the previous claims,
   characterized in that
   that the two folding door elements (10, 20) lie sealed against each other in the closed state of the folding gate (100).
8. Folding gate according to any of the previous claims,
   characterized in that
   that the guide element (30) extends in a straight line.
9. Folding gate according to any of the previous claims,
   characterized in that
   that the swivel axis (I) runs vertically and the guide element (30) extends horizontally.
10. Folding gate according to claim 9,
    characterized in that
    that the guide element (30) is arranged at the upper side of the folding gate (100).
11. Folding gate according to any of the previous claims,
    characterized in that
    that the latter has an anchoring element (60) opposite the bearing point, which anchoring element (60) cooperates with the second folding door element (20) in the closed state of the folding gate (100).
12. Two-sided opening folding gate, which comprises two folding gates (100) according to one of the previous claims, which are arranged mirrored to each other.
13. Two-sided opening folding gate according to claim 12,
    characterized in that
    that the two second folding door elements (20) lie sealed against each other in the closed folding door state.

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