EP2446102B1 - Door comprising a drive system - Google Patents

Description

The invention relates to a door with a drive system according to the preamble of claim 1.

Such a gate is from the EP 0 890 010 B1 known. The gate described there has a laterally guided in guide rails, movable overhead headpiece, which is movable by means of a drive system between a closed and open position. To compensate for the weight of the door leaf, a weight compensation device is provided, which ensures that the door leaf stops at any position, so that, for example, in the event of failure of the drive system uncontrolled shutdown of the door leaf is avoided.

The weight compensation device comprises, on each side of the door leaf, a cable unit extending in the region of the respective guide rail with a spring unit in the horizontal section of the guide rail. Each cable unit comprises two parallel ropes, which are guided on the spring unit. The first free ends are attached to the door leaf, the second free ends are mounted stationary. The stationary storage takes place, inter alia, with components that form a cable tension compensation device in the form of a rocker. The rope tension compensation device distributes the tension of the cables equally.

In principle, with such cable units protection against cable breakage obtained by the fact that each cable unit consists of two separate cables, which thus form a redundant system. Breaks one of the ropes of the rope units, Thus, the still intact rope can still maintain the function of the rope unit and thus the weight compensation device.

The disadvantage here, however, is that the separate ropes of the cable unit bring an undesirably high design effort with it. In particular, it is disadvantageous that separate fastening means must be provided for each cable at its free ends.

The invention has for its object to provide a goal of the type mentioned, in which with the least possible design effort the highest possible reliability is guaranteed.

To solve this problem, the features of claim 1 are provided. Advantageous embodiments and expedient developments of the invention are described in the subclaims.

The door according to the invention comprises a drive system by means of which a door leaf guided laterally in guide rails can be moved between an open position and a closed position. Furthermore, the door comprises a weight compensation device, a cable unit and a spring unit on one or each Torblattseite and a cable unit associated with the cable tension compensation device. The or each cable tension compensation device is safe against cable breakage and the or each cable unit consists of a rope which is deflected at the stationarily mounted cable tension compensation device, so that two spaced apart cable strands are obtained. The free ends of the rope are brought together and attached to the door leaf. Alternatively, the cable tension compensation device may be attached to the door leaf. Then the free ends of the rope are stored stationary.

The weight balancing device of the gate according to the invention can be realized with a low design effort. At the same time this has a high level of reliability, as it remains functional even in a rope break in a cable unit of the weight compensation device.

The design effort for the weight balancing device is kept low, in which each cable unit consists of only one rope. The number of cable ends per cable unit, which must be attached to the door leaf or on stationary brackets, is significantly reduced compared to cable units with multiple ropes.

According to the invention, a cable tension compensation device is provided for each cable unit, which ensures a compensation of the cable tensions in the two cable strands of the respective cable unit. In this case, a safeguard against cable breakage is ensured via the cable tension compensation device itself. Thus, although the cable unit consists only of a revolving rope, it is achieved that, even if a rope strand of the rope breaks, the remaining rope strand still remains functional and thus maintains the function of the weight compensation device.

According to the invention, the cable tension compensation device is assigned a safety device, by means of which, when a cable strand breaks, the other cable strand of the cable is held fast.

In an advantageous embodiment, the cable tension compensation device has a pin-shaped segment on which the cable is deflected and by means of which the cable is fixed in position, wherein the pin-shaped segment is particularly advantageous a screw.

The pin-shaped segment can be inserted into different recesses of a stationarily mounted holder and fixed there.

The rope tension compensation device designed in this way has an extremely simple construction and is also easy and quick to operate.

The safety device associated with this cable tension compensation device has as a safety device a stationary mounted diaphragm with two bores. Through a hole in each case a rope strand is guided. As a further component of the securing device, a fixed thickening connected to this is provided on each cable strand in the region between the pin-shaped segment and the diaphragm whose diameter is greater than the diameter of the cable strand associated bore.

If there is a cable break in one of the cable strands, then the cable can only move so far until one of the thickenings rests against the panel, whereby the dimensioning of the thickening reliably prevents it from passing through the bore of the panel. This ensures that the still intact wire rope is held on the securing device of the cable tension compensation device, the voltage of the still intact wire rope is therefore maintained.

The thus-formed safety device has an extremely simple structure, with this a high reliability is guaranteed. In this case, the panel is particularly advantageously formed integrally with the holder of the cable tension compensation device, whereby the securing device with the cable tension compensation device forms a structural unit.

The weight compensation device according to the invention can be used in gates of different types. In particular, the door can be a sectional door, lift gate, overhead sectional door, roller shutter door, overhead door or swinging door.

Figur 1:

Ausführungsform eines Tors mit einer Gewichtsausgleichseinrichtung.

Figur 2:

Teildarstellung des Tors mit den Komponenten der Gewichtsausgleichseinrichtung.

Figur 3:

Draufsicht auf eine Seilspannungs-Ausgleichseinrichtung mit zugeordneter Sicherungseinrichtung für die Gewichtsausgleichseinrichtung gemäß den Figuren 1 und 2.

Figur 4:

Querschnittsdarstellung der SeilspannungsAusgleichseinrichtung gemäß Figur 3.

The invention will be explained below with reference to the drawings. Show it:

FIG. 1:

Embodiment of a gate with a weight compensation device.

FIG. 2:

Partial view of the gate with the components of the weight compensation device.

FIG. 3:

Top view of a cable tension compensation device with associated safety device for the weight compensation device according to the FIGS. 1 and 2 ,

FIG. 4:

Cross-sectional view of the cable tension compensation device according to FIG. 3 ,

FIG. 1 shows an embodiment of a gate 1, in particular a Deckengliedertors, with a door leaf 2, which consists of a multiple arrangement of hingedly interconnected panels 3.

The door leaf 2 of the door 1 is guided laterally in guide rails, which are mounted in a building, in the present case a garage.

As in FIG. 1 shown, can be closed with the door leaf 2 of the gate 1, the opening of the garage. In the closed position of the door 1, the door leaf 2 is in the region of the vertically extending segments of the guide rails 4. In the open position of the door 1, the door leaf 2 is located in the region of the horizontally extending segments of the guide rail 4 below the garage ceiling , On the door leaf 2 guide rollers 5 are provided on both lateral edges, which are guided in the guide rails 4.

To open and close the gate 1, a drive system, not shown, is provided. The drive system comprises in a known manner a motor-driven carriage, in one of the guide rails 4 or in a is guided separate rail. The carriage is connected via a connecting rod, also not shown, hinged to the upper edge of the door leaf 2. By moving the carriage in the region of the horizontal segment of the guide rail 4, the door can be opened or closed.

The gate 1 has a weight compensation device whose components in FIG. 2 are shown in detail. The door leaf 2 is there in its closed position. FIG. 2 shows a side view of a guide rail 4. Like out FIG. 2 further seen, the horizontal portion of the guide rail 4 extends at a distance from the ceiling 6 of the garage.

How out FIG. 1 can be seen on the undersides of the horizontal portions of the guide rail 4 housing profiles 7 are mounted in the form of square profiles, in which components of the weight compensation device are integrated. In FIG. 2 these components are shown without the housing profile 7.

The weight balancing device, whose components are designed identically for the left and right door leaf sides, comprises on each side of the door leaf 2 a cable unit 8 and an associated spring unit 9. Each cable unit 8 has only one cable 10 which passes over deflection rollers 11a, 11b, 11c is. Furthermore, each cable unit 8 is associated with a stationary mounted cable tension compensation device 12, which in FIG. 2 is shown only schematically and their components in the FIGS. 3 and 4 are shown in detail.

The cable 10 of the cable unit 8 is deflected in the cable tension compensation device 12, so that there are obtained from there two parallel mutually spaced cable strands, which are guided over the guide rollers 11a, 11b, 11c.

A first guide roller 11a is located in the area of the ceiling 6 of the garage. In this case, the deflection roller 11a in the curved region of the guide rails 4, which forms the transition between the vertically extending and horizontal segment of the guide rail 4, arranged.

The second guide pulley 11 b is located at the end of the horizontal segment of the guide rail 4.

At the third guide roller 11c, the spring unit 9 is fixed with a longitudinal end. The other longitudinal end of the spring unit 9 is fixedly mounted on a holding element 13. The spring unit 9 consists of a tension spring arrangement. The individual tension springs can run parallel to one another or be arranged adjacent to one another.

The free ends of the cable strands are firmly connected to each other via a crimping 14. There, an eyelet 15 is provided, which may be formed by the free ends of the cable strands themselves or by a separate component. With this eyelet 15, the free ends of the cable strands are firmly connected to the lower end of the door leaf 2.

The operation of the weight compensation device is such that 9 spring forces are exerted by the spring unit, which counteract the weight of the door leaf 2 so that the door leaf 2 held securely in any vertical position, that is secured against falling.

The cable tension compensation device 12 ensures that the rope tensions are distributed equally to the two cable strands.

Like from the FIGS. 3 and 4 can be seen, the cable tension compensation device 12 on a stationary mounted bracket 16, which consists essentially of an L-shaped metallic part. The holder 16 has a running in a plane bottom plate 16a, with which the holder 16 is mounted on a stationary surface. In the longitudinal direction of the bottom plate 16a, several are spaced apart along a straight line arranged holes 17 are arranged. In one of these holes 17 a forming a pin-shaped segment screw 18 can be inserted and fixed.

Before insertion into one of the holes 17, two washers 19 are attached to the screw 18. Between these washers 19, the cable 10 of the cable unit 8 is guided, so that it is deflected on the screw 18. Depending on the desired cable tension, the screw 18 is inserted with the washers 19 and the cable 10 in a bore 17. The rope 10 is between the washers 19th

The cable 10 is thereby deflected at the screw 18 in such a way that a voltage compensation is present at the two outgoing from the deflection cable strands. Then, by tightening the screw 18, the rope is clamped in this set target position.

The thus formed cable tension compensation device 12 is reversibly actuated, since the screw 18 can be loosened at any time to then adjust the rope tension in the two strands of rope.

The thus formed cable tension compensation device 12 is associated with a safety device. As the first component of the securing device, a diaphragm 16b is provided, which is formed by the perpendicular to the bottom plate 16a oriented segment of the holder 16. In this aperture 16b, two spaced, identical holes 20 are provided with a circular cross-section.

As further components of the securing device, a thickening in the form of a crimping 21 is provided on the cable strands of the cable 10. Alternatively, the thickening may be in the form of a cast part made of metal or in the form of a clamping part. Like from the FIGS. 3 and 4 As can be seen, are the crimping 21 in the segments of the cable strands, which lie between the screw 18 and the diaphragm 16b. The diameters of the identical formed crimp 21 are larger than the diameter of the holes 20 of the diaphragm 16b. The diameter of the holes 20 are dimensioned so that the rope 10 is guided by this with little play.

With the thus formed safety device an efficient protection against a rope break in one of the rope strands is obtained.

If such a cable break exists in one of the cable strands, then the cable tension suddenly drops. As a result, however, the cable 10 can not escape from the region of the cable tension compensation device 12, since the crimp 21 rests against the bore 20 in the still intact cable strand and can not pass through it. With the storage of the now free end of the still intact rope strand through the voltage applied to the bore 20 crimping 21 of the rope strand is held securely to tension, so that the weight compensation device is still functional.

In the present case, the diaphragm 16b is formed integrally with the bottom plate 16a.

In an alternative embodiment, the panel 16b and the bottom panel 16a may be formed by two separate parts which can be fastened together. Then, the aperture 16b instead of the holes 20 have slots in which the cable strands with the crimps 21 can be easily inserted. If then the aperture 16b attached to the bottom plate 16a, the slots of the aperture 16b are covered by the bottom plate 16a so that the then still exposed parts of the slots form the holes 20 on which the crimps 21 are held securely.

LIST OF REFERENCE NUMBERS

(1)

gate

(2)

door leaf

(3)

paneling

(4)

guide rail

(5)

leadership

(6)

blanket

(7)

housing profile

(8th)

cable unit

(9.)

spring unit

(10)

rope

(11a)

idler pulley

(11b)

idler pulley

(11c)

idler pulley

(12)

Cable tension balancing device

(13)

retaining element

(14)

crimping

(15)

eyelet

(16)

bracket

(16a)

baseplate

(16b)

cover

(17)

drilling

(18)

screw

(19)

washer

(20)

drilling

(21)

crimping

Claims (12)

1. Door (1) with a drive system, by means of which a door leaf (2) laterally guided in guide rails (4) is movable between an open setting and a closed setting, and with a weight compensating device comprising a cable unit (8) and a spring unit (9) at a or each door leaf side as well as a cable tension compensating device (12) associated with the cable unit (8), characterised in that the or each cable unit (8) consists of a cable (10), which is deflected at the cable tension compensating device (12), which is mounted to be stationary in location or fixed to the door leaf (2), so that two cable strands running at a spacing from one another are obtained, wherein the free ends of the cable (10) are led together and fastened to the door leaf (2) or mounted to be stationary in location, and that associated with the cable tension compensating device (12) is a safety device by means of which in the case of breakage of one cable strand the other cable strand of the cable (10) is fixed, wherein the safety device comprises a panel (16b), which is mounted to be stationary in location, with two bores (20), wherein a respective cable strand is guided through each bore (20), and that provided as further components of the safety device at each cable strand in the region between a pin-shaped segment of the cable tension compensating device and the panel (16b) is a thickening which is fixedly connected therewith and the diameter of which is greater than the diameter of the bore (20) associated with the cable strand.
2. Door according to claim 1, characterised in that the cable (10) is deflected at the pin-shaped segment and the cable (10) is positionally fixed by means of that.
3. Door according to claim 2, characterised in that the pin-shaped segment is a screw (18).
4. Door according to claim 1, characterised in that the pin-shaped segment is introducible into different recesses of a mount (16), which is mounted in fixed position, and is fixable there.
5. Door according to claim 1, characterised in that the bores (20) in the panel (16b) are formed to be identical, wherein the diameters thereof are so matched to the outer diameter of the cable (10) that the cable strands are guided in the bores (20) with a small amount of play.
6. Door according to one of claims 1 and 5, characterised in that the thickenings at the cable strands are formed by crimpings (21).
7. Door according to one of claims 1 and 6, characterised in that the thickenings are formed by cast parts or clamped parts.
8. Door according to any one of claims 1 to 7, characterised in that the panel (16b) is formed integrally with the mount (16) of the cable tension compensating device (12).
9. Door according to any one of claims 1 to 7, characterised in that the panel (16b) forms a separate part fastenable to the mount (16), wherein the panel (16b) has slots into which the cable strands with the thickenings are introducible, and that after fastening of the panel (16b) to the mount (16) the slots are partly shut off so that the parts of the slots left free form the bores (20).
10. Door according to any one of claims 1 to 9, characterised in that the or each spring unit (9) consists of a tension spring arrangement.
11. Door according to claim 10, characterised in that the spring unit (9) is mounted at one end to be stationary in position and that a deflecting roller (11 c) by way of which the cable strands of the cable (10) are guided is fastened to the other end of the spring unit (9).
12. Door according to any one of claim 1 to 11, characterised in that this is a sectional door, lifting door, ceiling sectional door, roll door, tipping door or swing door.

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