EP2993297B1 - Rolling gate - Google Patents

Description

The invention relates to a roller door with a flexible door curtain according to the preamble of claim 1, for closing a wall opening of a building or the like opening of a housing; and a Ausklinkeinheit for a roll-up door with a flexible door curtain according to the preamble of claim 11.

Roller shutters with a flexible door curtain for closing a wall opening of a building or the like opening of a housing are known in many designs.
In these roller doors, the door curtain is held and guided between an "open" position and a "closed" position with each of its two edge strips, each in a guide arranged in the door columns of the roller shutter. The "open" position is usually the upper position.
The torso columns - which are also often called rail boxes - such a roller door are arranged at a distance from each other and usually also parallel to each other. Each guide has a slot for guiding the relevant edge strip of the door curtain. The slot of each guide is in the relevant gate column arranged so that both leading slots are aligned with each other and between them a management level is formed.
In many of the known roller doors, a closing strip is attached to the lower, horizontal edge of the door curtain. Preferably, a sealing element is provided below the end strip and over its entire width, which in the position gate "closed" at the respective reveal of the wall opening, usually the ground, is applied. This end bar itself does not protrude into the slots of the guides. At both lateral, opposite ends of the end strip in each case a guide element is provided, which projects into the respective slot, so that during the movement of the door curtain and this end strip is guided in the guides and in a rest position of the door curtain, eg in the position " Closed ", the closing bar is held in the management level.
So that the door curtain always has a firm condition during the process "opening" and the process "closing" and in each of its rest positions, for example, a tension acts on the end bar; preferably at both lateral ends of the end strip. There are also known designs in which the end strip is at the same time the clamping force.

Thus, the door curtain and its end strip by a force acting on them lateral force, which is given for example in a crash situation, not damaged, are in a roll-up door with a flexible curtain after the DE 295 01 048 U1 the guide elements of the end strip arranged pivotally on the end strip or consist of a bendable material, such as in a roll-up door with a flexible door leaf according to the DE 40 07 280 A1 , so that when a predetermined limit value for the transverse force is exceeded, the guided sections of the guide elements are deflected out of the guides. Repair-intensive damage (time and / or costs) can thus be avoided. However, the definition of this limit is problematic, in particular to a considerable extent depending on the purpose of the roller door. In particular, when the roller doors are used as a so-called outer gate, this limit must be relatively high, so that a force acting on the door curtain wind load - lateral force - does not let the guide elements emerge too early from the guides. Even when using the roll-up door to close a wall opening between two rooms with different room pressure, a not insignificant wind load acts on the door curtain. On the other hand, the limit with respect to the release of the guided sections of the door curtain and its supplementary parts but must be low, so that in a crash situation, the guide elements before a deformation of the end strip or the door curtain itself can emerge from the guides.

For the production of a roll-up door, however, this means that for the many special applications of a roller shutter a corresponding number of end strips must be kept with different limits for the pivoting of the guide elements. This has a negative effect on the manufacturing costs and thus negative on the price calculation at the manufacturer and negative in terms of investment costs for the user.
Each emergence of the guide elements of the end strip or portions of the edge strips of the door curtain from the guides is at least a time-related disorder in the work process, another disadvantage. The door curtain and the end strip must - at best - only brought back to their desired position and - in the worst case - be repaired or replaced.
If these roller doors are integrated in automated production processes, for example in those in which goods are moved with driverless vans, the downtime is not insignificant, as quite a temporary shutdown of manufacturing sections is necessary.

Therefore, the object of the present invention is to develop a roller door with a flexible curtain with simple means, cost and with little technical effort so that in a crash situation the door curtain in the guide rails leading parts are quickly deflected and at the same time, better than in known roller shutters, a high wind load can be absorbed or compensated before the relevant guide parts are deflected out of the guide rails or the guide rails; In addition, retrofitting existing roller doors with leading parts according to the invention without great effort to be possible.

The object is achieved by a roller door with a flexible door curtain with the features of claim 1 and a Ausklinkeinheit with the features of claim 11. The claims 2 to 10 disclose embodiments of the invention Rolltores.
The roller shutter consists initially of the basic elements: two torso columns, a curtain made of flexible material, a rotatably mounted, drivable winding shaft for receiving and moving the door curtain between a first end position "door open" and a second end position "door closed", a drive for the Winding shaft and a control unit. The two mutually spaced arranged Torsäulen have substantially vertically directed guide rails for guiding the Torbehanges and control units for Detecting the lower and upper end position of the door curtain for the purpose of switching off or switching the drive, even before reaching the respective end position, as well as means for generating a Behangspannung that attacks at least in the movements "open" and "closing" at the lower portion. In the new roller shutter according to the invention guided on the guided in the guide rails of the door pillar door in the lower region, preferably at the lower surface edge, a closing strip, in addition to the opposite end faces each a novel Ausklinkeinheit is arranged, the Ausklinkeinheiten in the engage respective guide rails of the door pillars of the roller shutter.

It is envisaged that the Ausklinkeinheiten are multi-part, preferably each consist of at least two non-positively and positively held together parts. Advantageously, the Ausklinkeinheiten each consist of a guide member and a wedge-shaped, guided on the guide part, its basic elements, wherein for holding the guided part in the guide part, the guide member and the guided part each having at least one opening through which a force-storing, preferably resilient Element is guided, whose end / ends are fastened by means of a clamping element to a rear end side of the guide member. The
Guide part has for this purpose on its front face a wedge-shaped recess into which - in the assembly end position - a wedge of the guided part engages positively and non-positively. The basic elements are thus held together so that they are movable and movable relative to each other.

Due to the formation of the provided in the lower part of the door curtain, preferably at the lower edge of the end strip arranged on the front side new Ausklinkeinheiten with relatively movable, preferably movable basic elements (the keyway in the guide member and the wedge on the guided part), the necessary biasing force divided into two basic forces for the Ausklinkmechanismus the Ausklinkeinheiten, in the means of spring elements generated tensile force for the holding force on the guide member and the frictional force between the abutting surface parts of the guide member and the guided part. This novel construction gives a more sensitive adjustment and effect of the release mechanism. In particular, by sliding surfaces of the guide member and the guided part. By a suitable selection of the material of the guide part and / or the guided part of this effect can be positively influenced. An essential advantage of this is that the end strip of the door curtain, ie especially the movable part of the door Ausklinkeinheit, when exceeding an optional adjustable limit is pulled faster than in known solutions from the guide rail.
Another advantage of the invention is that the relative to each other movable basic elements of the new Ausklinkeinheit acting on the door curtain wind load (lateral force on the door curtain) is not fully transferred to the contact area between the guide rail and the relevant portion of the guided part, so that in the Movement "closing" the door curtain the risk of stopping the end strip is excluded because of excessive wind load or at least greatly minimized.

The relatively movable base elements of the new Ausklinkeinheit results in a further advantage is that strong magnitude fluctuations of the wind load are absorbed / intercepted by these movable elements, so that guided in the guide rail portion of the guided part runs quieter / less fluttering, which positively the life of this component works.

Another advantage of the Ausklinkeinheit invention also consists in that it can be produced as a modular assembly, which has a positive effect on the manufacturing cost Rolltores acts because the so-called repetition degree can be increased.
Furthermore, the new roller shutter door is faster and better adaptable to individual requirements of the user.
An advantageous embodiment is seen in that the provided in the guide part at least one opening and provided in the guided part at least one opening are each arranged parallel to each other at a distance from each other.

It is preferably provided that in the guide part between parallel and spaced openings another, quasi-centric opening for receiving a sensor and in the guided part between the openings each have a central opening for receiving a magnet is provided, wherein for determining the distance of the sensor and the Magnet are arranged one another in a plane opposite each other.

Furthermore, it is preferably provided that the guided part has a neck-shaped or peg-shaped projection which projects into the guide rail and is guided in the slot of the guide rail. The guide rail is advantageously formed at their ends with resilient or elastic strips.

A preferred embodiment is seen in that the force-storing, resilient element leading through the openings of the guided part and the openings of the guide member is formed as a rubber cord and that the openings in the guide part and the openings in the guided part are designed as bores.

A preferred development is seen in the fact that when a transverse force on the door curtain and exceeding a limit value of the biasing force, which is preferably adjustable, the neck-shaped or peg-shaped projection of the guided part of the wedge-shaped recess of the guide member swings out quickly, faster than in known devices.

An advantageous development is seen in the fact that the force for swinging the guided part of the guide part of the wedge angle of the wedge-shaped recess and the tensile force of the force-storing, preferably resilient element depends.

An advantageous development is seen in that at least one of the adjoining and sliding surfaces of the Ausklinkeinheit is curved outwards. Specifically, the area in question is convex; preferably the curved surface at the beginning and at the end of its arc length has a different radius. This ensures that - as seen in virtual terms - the pivot axis with respect to the pivoting of the guided part in the range of relative movement of the two parts to each other is inserted. Upon reaching the limit of the biasing force, ie the time of swinging out of the guided part of the guide rail, the fast swinging is supported again. In addition, can be reduced by this design execution of the gap between the respective end face of the end strip and the end face of the relevant guide / column.

Fig. 1

eine schematische Gesamtansicht eines Rolltores;

Fig. 2

eine Abschlussleiste des Torbehanges des Rolltores mit eingebauter Ausklinkeinheit im Schnitt, in Draufsicht;

Fig. 3

ein Führungsteil der Ausklinkeinheit in isometrischer Darstellung;

Fig. 4

ein geführtes Teil der Ausklinkeinheit in isometrischer Darstellung;

Fig. 5 bis 11

die Wirkungsweise der Ausklinkeinheit bei Einwirkung einer Querkraft auf den Torbehang in mehreren Stufen/Positionen.

The invention will be explained below with reference to a non-limiting, schematically illustrated in drawings, embodiment in more detail and in further detail. Showing:

Fig. 1

a schematic overall view of a roll-up door;

Fig. 2

a terminal strip of the door curtain of the roller shutter with built-in Ausklinkeinheit in section, in plan view;

Fig. 3

a guide part of the Ausklinkeinheit in isometric view;

Fig. 4

a guided part of the Ausklinkeinheit in isometric view;

Fig. 5 to 11

the operation of the Ausklinkeinheit under the influence of a lateral force on the door curtain in several stages / positions.

First of all, the description is preceded that terms such as "left," "right," "top," or "bottom" refer only to the representation in the figures, but may differ from the actual arrangement in practice. It should also be noted that the figures are not purely technical drawings, which is why partial hatching and demolition lines are missing. Also, the relative dimensions may differ from reality. In the description not mentioned reference numerals result from the list of reference numerals. The reference numbers have the same meaning in all figures.

FIG. 1 shows a schematic overall view of a rolling door 33 according to the invention with its basic elements, a door curtain 1 of flexible material, which is wound by means of a winding shaft 2, which is driven by a drive unit 3. To each other spaced, arranged in the region of the soffits of a wall opening 35 of a wall 34 Torsäulen 4 and 5 of the roll-up door have vertically directed guide rails 6, 7 for guiding the door curtain 1. The door curtain 1 further has in a lower region 8 on a end strip 9, at the end faces 10, 11 each have a corresponding Ausklinkeinheit 12, 13 is arranged according to the invention, which engage in the corresponding guide rails 6, 7 of the columns 4, 5. The reference numeral 36 denotes the bottom with respect to the wall opening 35. The left edge strip 38 of the door hanger 1 is in the left guide rail 6 and the right edge strip 39 of the door hanger 1 is also performed in the right guide rail 7.
The new features of the roll-up door 33 are explained below with reference to the right side of the roll-up door 33. The left side of the roller door 33 is equipped with the same components and parts, in particular with the features essential to the invention.

In FIG. 2 is one of the arranged in the end bar 9 Ausklinkeinheiten, here the right guide rail 7 associated Ausklinkeinheit 13, shown. The arranged on the opposite side of the star 10 in the end bar 9 Ausklinkeinheit 12 is structurally equal to the Ausklinkeinheit 13 executed; their surfaces, edges and openings are mirror images.

The Ausklinkeinheit 13 consists of a guide member 14 which is arranged with its body 45 in an inner space 40 of the end strip 9. In the guide member 14, preferably two, parallel and spaced holes 15, 16 are provided (see FIG. 3 ), in which a force-storing, here preferably resilient element in the form of a rubber cord 17 is arranged. At a front end face 18 of the guide member 14, a wedge-shaped recess 19 is provided through which inner surfaces 41 and 42 are formed. In this wedge-shaped recess 19 engages a wedge 20, a guided part 21, with its outer surfaces 43 and 44. Hereby, the positive connection between the two relatively movable parts 14 and 21 of the Ausklinkeinheiten 12; 13 produced.
In the guided part 21 (see FIG. 4 ) are also two parallel spaced holes 22, 23 are provided, through which the trained as a rubber cord 17 spring element is guided. Ends 24 of the rubber cord 17 are fastened by means of a clamping element 25 on a rear end face 26 of the guide member 14 and the guided part 21 is thus held non-positively on the guide member 14.

In the guided part 21 is in a preferably centrally disposed bore 27, a magnet 28 and in the Guide member 14 disposed in a likewise preferably centrally disposed bore 29 opposite a sensor 30 for distance determination. If a predetermined distance between the sensor 30 and the magnet 28 is exceeded when the guided part 21 slips out, the sensor 30 sends a signal to the drive unit 3 in connection with a control unit in order to open the roller shutter door immediately or to interrupt the closing operation.

The guided part 21 has a projection 31, which projects into the guide rail 7 of the gate column 5. The guide rail 7 is to protect the door curtain 1, in particular its right edge strip 39 with elastic, preferably provided with rubber strips 32, between which a guide slot 47 is formed.

The FIGS. 5 to 11 show the operation of the Ausklinkeinheit 13. acts a force, in particular a transverse force "F" on the door curtain 1 so the lug 31 of the guided part 21 applies to one of the rubber strips 32, see FIG. 5 , As the amount of lateral force "F" increases, the guided member 21 moves relative to the guide member 14, and the guided member 21 tilts, partially at first and then completely out of the wedge-shaped recess 19 of FIG Guide members 14 out, the resilient member 17 expands, see the FIGS. 6 to 10 ,
In the FIG. 11 For the threading of the curtain is - usually moved to a position above its upper end position, so that in the subsequent movement "closing" the guide elements of the end strip 9 and the edge strips Retract 38 and 39 of the door curtain 1 again in the guide slots of the guide rails 6 and 7 respectively.
If a corresponding Behangspannung and corresponding elements on the guide rails, eg partially arranged recesses are provided on the roller door 33, the threading can already be done during the "open" movement after a crash or during the crash. The novel notching unit is ideally suited for such use.

The force required to disengage the guided part 21, ie the limit value of the adjustable preload force, which is composed of the energy accumulator, the resilient element 17, and the frictional force between the inner surface 42 and the outer surface 44, can by selecting the angle of the wedge 20 and be designed by the selected amount of tensile force of the rubber cord 17.

The invention is not limited to the embodiment, but is variable in the applied devices. All the features mentioned in the above description as well as the features which can be taken from the drawings are further constituents of the invention, although they are not particularly emphasized and mentioned in the claims.
Another, not shown in the figures embodiment is the use of the novel Ausklinkeinheit on a roll-up door with a horizontally moving door curtain. Furthermore, the new roller shutter does not necessarily have to be used on a wall opening which extends down to the floor. The roll-up door can also be used for wall openings in the form of a window.
The switching unit mentioned in the described embodiment, the sensor and the magnet, which act in the manner of a reed contact switch, are not restrictive. To generate the necessary switching signal for the drive unit, when the said parts of the Ausklinkeinheit move beyond the predetermined distance away from each other, any other known switching unit can be used, for example, push button whose probe element in the inner surfaces 42 and 41 of the guide member 14 partially protrude or Induction switch and many others more.

References directory:

1

Door curtain

2

winding shaft

3

drive unit

4

Gate column (left)

5

Gate column (right)

6

Guide rail (left)

7

Guide rail (right)

8th

lower area of the door hanger

9

end strip

10

Front side of the end strip (Pos. 9)

11

Front side of the end strip (Pos. 9)

12

Ausklinkeinheit (left)

13

Ausklinkeinheit (right)

14

guide part

15

Hole in guide part (below)

16

Hole in guide part (top)

17

elastic cord

18

front end of the guide part

19

wedge-shaped recess of the guide part

20

Wedge (at pos. 21)

21

guided part

22

Bore in the guided part (top)

23

Bore in the guided part (below)

24

End of the rubber cord (from pos. 17)

25

clamping element

26

rear side of the guide part (from pos. 14)

27

central bore in the guided part (item 21)

28

magnet

29

central bore in the guide part (item 14)

30

sensor

31

Approach of the guided part (at pos. 21)

32

Rubber strip / plastic strip (at pos. 6 and 7)

33

rolling gate

34

wall

35

wall opening

36

ground

37

signal line

38

left edge strip (from pos. 1)

39

right edge strip (from pos. 1)

40

Interior (from Pos. 9)

41

Inner surface (from pos. 19)

42

Inner surface (from pos. 19)

43

Outer surface (at pos. 20)

44

Outer surface (at pos. 20)

45

Body (from Pos. 14)

46

Recess (in pos.31)

47

Guide slot (from Pos.7)

F

Lateral force (wind load, external force in crash)

Claims (11)

1. Roller door, comprising a door hanging (1) of flexible material, a rotatably mounted, drivable winding shaft (2) for mounting and moving the door hanging (1), door columns (4, 5) comprising guide rails (6, 7) for guiding the door hanging (1), means for detecting the lower and upper end positions of the door hanging (1) for the purpose of switching off a drive unit (3) rotating the winding shaft (2) and means for producing tensioning of the hanging, which means engage the lower section of the door hanging (1) at least at the time of the movement 'opening' and the movement 'closing', wherein the door hanging (1) guided in the guide rails (6, 7) of the door column (4, 5) has a closure strip (9) in its lower region (8), wherein a respective unlatching unit (12, 13) is arranged at each of the mutually opposite ends (10, 11) of the closure strip (9), wherein each unlatching unit (12, 13) engages in the corresponding guide rail (6, 7) of the door columns (4, 5) and wherein each unlatching unit (12, 13) is multi-part and has at least two parts, characterised in that the at least two parts of each unlatching unit, i.e. a guiding part (14) and a part (21) guided at the guiding part (14), are so mechanically positively and frictionally retained at one another that these two basic elements (14, 21) of each unlatching unit (12, 13) are displaceable against one another and movable relative to one another.
2. Roller door according to claim 1, characterised in that the unlatching units (12, 13) each consist of a guiding part (14) and a guided part (21), which is of wedge-shaped construction, wherein for retaining the guided part (21) in the guiding part (14) the guiding part (14) has openings (15, 16) and the guided part (21) has openings (22, 23), through which a force-storing element (17) is guided, the ends (24) of which are fixed to a rear end (26) of the guiding part by means of a clamping element (25).
3. Roller door according to one of claims 1 and 2, characterised in that the guiding part (14) has at the front end (18) thereof a wedge-shaped recess (19) in which the guided part (21) engages by its wedge (20).
4. Roller door according to any one of claims 1 to 3, characterised in that the openings (15, 16) provided in the guiding part (14) and the openings (22, 23) provided in the guided part (21) are respectively arranged parallel to and at a spacing from one another.
5. Roller door according to any one of claims 1 to 4, characterised in that a further, preferably central, opening (29) for reception of a sensor (30) is provided in the guiding part (14) between the openings (15, 16) and a respective central opening (27) for reception of a magnet (28) is provided in the guided part (21) between the openings (22, 23), wherein for determination of spacing the sensor (30) and the magnet (28) are arranged opposite to one another in a plane.
6. Roller door according to any one of claims 1 to 5, characterised in that the guided part (21) has a neck-shaped projection (31) projecting into the guide rail (7), wherein the guide rail (7) is constructed at the end with resiliently formed strips (32).
7. Roller door according to any one of claims 1 to 6, characterised in that the force-storing element (17) leading through the openings (22, 23) of the guided part (21) and the openings (15, 16) of the guiding part (14) is constructed as a resilient rubber cord.
8. Roller door according to any one of claims 1 to 7, characterised in that the openings (15, 16) in the guiding part (14) and the openings (22, 23) in the guided part (21) are formed as bores.
9. Roller door according to any one of claims 1 to 8, characterised in that when a force occurs at the door hanging (1) a neck-shaped projection (31) of the guided part (21) pivots out of the wedge-shaped recess (19) of the guiding part (14).
10. Roller door according to any one of claims 1 to 9, characterised in that the force for pivoting out the guided part (21) depends on the wedge angle of the wedge-shaped recess (19) and the tension force of the resilient element (17).
11. Unlatching unit for a roller door, which comprises a door hanging (1) of flexible material, a rotatably mounted, drivable winding shaft (2) for mounting and moving the door hanging (1), door columns (4, 5) comprising guide rails (6, 7) for guiding the door hanging (1), means for detecting the lower and upper end positions of the door hanging (1) for the purpose of switching off a drive unit (3) rotating the winding shaft (2) and means for producing tensioning of the hanging, which means engage the lower section of the door hanging (1) at least at the time of the movement 'opening' and the movement 'closing', in which the door hanging (1) guided in the guide rails (6, 7) of the door column (4, 5) has a closure strip (9) in its lower region (8), a respective unlatching unit (12, 13) being arranged at each of the mutually opposite ends (10, 11) of the closure strip (9), wherein the unlatching unit (12, 13) engages in the corresponding guide rail (6, 7) of the door columns (4, 5) and wherein the unlatching unit (12, 13) is multi-part and has at least two parts / basic elements, characterised in that the at least two parts are frictionally and mechanically positively retained at one another in such a way that the basic elements are displaceable against one another and are movable relative to one another.

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