EP3346081A1 - Device for compensating the weight of a gate - Google Patents

Abstract

The present invention relates to a device (1), a gate construction (80) with the device (1) and a gate with the gate construction (80) for balancing a gate (2) of a gate, the device (1) comprising: a spring assembly (10) adapted to balance a weight force of the gate (2); and connecting means (20) for connecting the spring assembly (10) to the gate (2), wherein between the spring assembly (10) and Door leaf (2), a transmission (30) is interposed.

Description

Technical area

The present invention relates to a device for weight balance of a gate, a gate construction for a goal, in particular for a garage door or industrial gate, as well as a gate construction according to the invention comprising a gate.

The addressed goals may include individual door members or sections, the doors having at least one gate. The individual sections are guided laterally in rails, for example in sectional doors and can be moved from a vertical closed position to an open position.

Gates of this type can be used to close different entrances or passages. This applies in particular to entrances to buildings in the private or commercial sector. Thus, corresponding gates can be used to close, for example, loading ramp openings of a warehouse. Further areas of application are gates for industrial halls, warehouses, agricultural halls, single garages, double garages, collective garages. Other applications are conceivable at this point.

State of the art

Gate leaves or sections of a door leaf according to the prior art, for example, consist of aluminum support profiles, in which a glazing or a panel are used can. Thus, the carrier give a support framework, which can then be provided according to customer requirements with panels. For better thermal insulation, the aluminum profiles can be thermally insulated. According to the respective equipment variant of the gate, or the sections of the gate, the weight of the gate can be significant.

Accordingly, there is generally the problem with such gates that when opening the door leaf from a closed position to an open position, a relatively high weight must be raised. For this purpose, usually weight balance arrangements in the form of tension or torsion springs are used, which are tensioned during a closing movement in which the door leaf movement must be braked, so that the energy stored in the springs is then available for assisting the opening movement. The connection of the tension or torsion springs to the gate is usually carried out as a wire rope carrying means that are coupled to the gate or attached thereto.

The leaves of sectional doors comprise a plurality of hinges arranged in succession in the door leaf movement direction and having joints extending perpendicularly to the direction of movement, in particular hinges, articulated door wing sections connected in an articulated manner. The movement of the gate is usually performed at these gates using guide rails.

In such doors torsion springs can be used for the weight compensation device. In this case, one end of the torsion spring with respect to the reveal of the opening to be closed with the gate opening is fixedly mounted, while the other end of the torsion spring is coupled to a rotatably mounted Torsionsfederwelle. When a closing movement of the gate, the Tosionsfederwelle is rotated its shaft axis and the torsion spring so tense. The energy thus stored is then ready to support the opening movement as previously described.

However, since the weight of the door leaf can be several hundred kilograms in gates, it is necessary to dimension the torsion spring and the support cables to which the door leaf depends, tensile strength accordingly. The result is that an increased rope diameter is necessary, which causes a reduced flexibility of the wire ropes, or larger deflection radii. Which degrades the handleability of the counterbalance device.

Further, for example, in sectional doors having a certain number of sections, there is the problem that the weight of the sectional door acting on the supporting rope and thus on the springs of the counterbalancing device gradually changes. In sectional doors, an approximately horizontally extending section (overhead) of the guide rails is usually connected via an arcuate section to an approximately vertical second section. Here, the sectional door may be brought from the closed position with the sectional door in the vertically extending second section to an open position in which the sectional door is located in the horizontally extending first section.

Now, if the first roller, with which the sectional door is guided in the guide rail, from the arcuate portion in the vertical portion, the load of the counterbalancing device changes gradually by the weight of the sectional door. The same applies to the situation that the second roller and each other roller from the arcuate portion merges into the vertical portion. In the known systems, this leads to the fact that in particular the closing movement is not uniform or not continuous. This is special For gates with a small number of sections (eg two sections) even more pronounced, since the shift of the weight only occurs at a few points. Further, the difference between the weight to be taken up by the first and last rollers is much less than the weight that has to be absorbed by the intermediate rollers.

Subject of the invention

The aim of the present invention is to provide a device for weight balance of a door leaf of a gate, in particular sections of a gate, a door having such a gate construction, a door having such a gate construction and a method for weight balance of a gate, wherein the handling during assembly improved and / or the maintenance costs can be reduced.

Furthermore, the closing and opening characteristics can be improved, whereby a more uniform closing and opening speed and / or movement can be realized. Also, the necessary space and the number of required components or assemblies can be reduced

The object is achieved by a device according to claim 1, a gate construction according to claim 14 and a gate according to claim 15. Preferred developments of the invention are given in the dependent claims.

One of the core concepts of the present invention is to provide a device which is made possible by means of a transmission which is interposed for the (functional or force-transmitting) connection of the spring arrangement and the gate between the spring arrangement and the gate, despite the high weight of the gate to design the connecting device weight and space saving.

To this end, the present invention provides a device for balancing a gate of a gate, in particular sections of a gate, in which the gate between a closed position, in which the gate is arranged approximately in a vertical plane, and an open position, in which the gate is arranged above the head, preferably approximately in a horizontal plane, is movable. Here, the device comprises: a spring arrangement which is adapted to compensate for a weight force of the gate and optionally to assist an opening movement of the gate, and a connecting device for force-transmitting connecting the spring arrangement with the gate, wherein (for example. In the connecting device, in this inserted or as part of this) between the spring assembly and the gate a gear is interposed.

In particular, a second connecting portion of the connecting device may be attached to a first coupling device of the transmission, preferably wound up, and / or a first connecting portion of the connecting device may be attached to a second coupling device of the transmission, preferably wound up.

According to a preferred embodiment, it is provided that the at least one spring is fixed in place at one end and is connected to the other end with the connecting device, wherein the connecting device is preferably formed in the form of a wire rope or a chain. Preferably, a plurality of springs are combined in a spring arrangement (a spring package).

Further, it is preferred that the transmission has a gear ratio, so that a spring travel of the spring assembly is shorter than a stroke movement of the Door leaf, wherein the transmission preferably has a transmission ratio of 1: 2. In this way it is possible to shorten the tension travel (spring travel) of the spring arrangement and thus to save space.

As a result, the space requirement of the spring arrangement can be reduced. Furthermore, can be saved by the achieved by means of the transmission, compact design to a lintel, in a goal resignation and in a rear insertion area space. Furthermore, due to the compact design, the number of components to be mounted or assemblies can be reduced, whereby assembly times and assembly costs and storage and logistics costs can be reduced.

In this case, the transmission in the form of a gear transmission, a belt transmission, in particular a V-belt transmission or a toothed belt transmission, or a chain transmission may be formed.

Furthermore, it is possible to represent different spring characteristics based on the transmission, wherein the different spring characteristics in particular by cable drums having a plurality of effective diameters are realized. This makes it possible to adapt the spring characteristic of the spring arrangement to the position-dependent weight force of the door leaf, which acts on the spring arrangement.

According to a further embodiment of the present invention, the spring arrangement comprises at least one spring, in particular a tension spring, a compression spring or a gas pressure spring, wherein the spring arrangement is preferably arranged such that it has a progressive spring characteristic.

If the spring arrangement is realized, for example, in the form of a tension spring, follow-up costs in service can be reduced as a result become. This is particularly the case, since the spring arrangement, in particular the tension spring, can be easily replaced.

Furthermore, it is advantageous if the progressive spring characteristic of the spring arrangement is realized by means of a progressive spring characteristic of the at least one spring and / or by means of at least two springs.

It can be provided with safety device, a gate leaf-side base console, by means of which the connecting device to the gate, in particular to a lowermost section of a gate, is connected, and is held under the action of the spring force of the spring assembly in a dissolved state, in particular the transmission interposed is, that is arranged in the power flow between the spring assembly and gate.

Further, it is preferred that the ground console with safety gear has a base console, based on the ground console with safety gear on the door, especially at the lowest section of a gate, can be fastened, preferably provided on the bottom console rotatably mounted holding plate, on which the Connecting device is connected.

According to one embodiment, it is provided that the retaining plate is biased by means of at least one brake spring against the spring force of the spring assembly, and the force of the brake spring is preferably adjusted so that the retaining plate is pressed under the action of the spring force of the spring assembly against a stop, whereby a Braking device, which serves to the ground console with safety gear of the gate, is kept in the released state.

Furthermore, it is preferable to design the ground console with safety gear such that in the event of a failure of a first connecting portion of the connecting device, which is arranged between the door leaf and the transmission, in particular in the case of a cable break, the spring force of the brake spring acts on the braking device, thereby this can be brought into a braking position.

The braking device may be formed as a cutting mandrel, with a particularly safe braking effect can be achieved.

Furthermore, it is preferred if the transmission comprises: a, preferably larger, first gear, which is fixedly connected to a first coupling device, by means of which the spring force of the spring assembly can be introduced into the transmission, and a, preferably smaller, second gear fixed is connected to a second coupling means, by means of which the weight of the door leaf, in particular the sections of the door leaf, is introduced into the transmission, wherein the first gear is in engagement with the second gear. As a result, the spring force of the spring arrangement can act against the weight of the door leaf.

According to a further embodiment, at least one of the gears, preferably the first gear, at least partially made of a plastic material, in particular made of polyamide, more preferably cast polyamide. Thus, a weight saving can be achieved and thus the assembly can be facilitated. Furthermore, running noise can be significantly reduced.

The second gear is preferably made of a metallic material.

Furthermore, it is preferable to form the first and second coupling devices as a cable drum, wherein Preferably, the effective diameter of the second coupling device is formed larger than the effective diameter of the first coupling device.

Furthermore, the cable drum of the first coupling device can have at least two, preferably three, different effective diameters, which preferably line up from a smallest effective diameter to a maximum effective diameter, in particular from one edge of the cable drum to the other edge of the cable drum.

Furthermore, the cable drum of the second coupling device can have at least two, preferably three, different effective diameters, which preferably line up from a center of the cable drum to an edge of the cable drum from a smallest effective diameter to a maximum effective diameter. In this case, seen in particular from the middle of the cable drum, two different effective diameters can be formed on two halves of the cable drum.

According to a further embodiment, the different effective diameters of the cable drums spiral into one another, wherein the cable drums preferably have guide grooves for guiding the accommodated connecting device.

Furthermore, it is preferred that transitions of the individual effective diameters of the cable drums are designed such that the transitions are each guided with a transition of a guide roller of a plurality of guide rollers, on the basis of the sections of the gate in guide rails, from an approximately horizontal guide area in an in about vertical range, coincide.

Further, a spring assembly-side fall protection can be provided, based on the transmission, in particular a first gear of the transmission, which is force-transmitting with the spring assembly in communication, is blocked if a second connecting portion of the connecting device, which is arranged between the transmission and the spring assembly, fails in particular in the case of a cable break of a wire rope.

It is likewise preferred that the spring arrangement-side fall protection comprises: a pulley, in particular a plastic pulley, which is connected via a lever system with a blocking element, in particular with a blocking wedge. In this case, the lever system can preferably be acted upon by a blocking spring such that when the second connecting portion of the connecting device fails, the blocking element can be brought from a rest position into a blocking position. In this way, the safety of the device is effectively increased.

It is further preferred that the pulley of the fall protection is deflected by a voltage in the second connecting portion of the connecting device against a clamping force of the blocking spring, whereby the blocking element can be held in a rest position via the lever system. If the second connecting portion of the connecting device should fail, the voltage in the second connecting portion would drop and thus convert the lever system, in particular the blocking element into the blocking position, by the blocking spring in a blocking position.
Furthermore, the invention relates to a door construction for a gate, in particular for a garage door or industrial door, as well as a goal construction according to the invention gate having. Also included is the use of the device, the gate construction and / or the door for opening and closing.

Brief description of the drawings

• Fig. 1a and 1b show schematically a known device,
• Fig. 2 shows an overview view of an embodiment of a device according to the present invention,
• Fig. 3a and 3b each show sections of a connecting device according to the in Fig. 2 shown embodiment,
• Fig. 4 is a detail view that enlarges the ground console with safety gear according to the in Fig. 2 shown embodiment shows
• Fig. 5a and 5b are detail views, the more details of in Fig. 4 shown, ground console with safety gear show
• Fig. 6a and 6b show a front and a side view of a transmission according to an embodiment of the present invention,
• Fig. 7 is a detail view that enlarges a spring assembly side fall protection according to the in Fig. 2 shown embodiment shows
• Fig. 8 is a detail view that further details the in Fig. 7 shown, spring assembly side fall protection shows.

Detailed Description of the Preferred Embodiments

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Other modifications of certain features mentioned in this context can each be combined individually to form new embodiments.

In Fig. 1a and 1b schematically a known weight compensation device 200 is shown having cable drums 201 which are provided on the right and left side of the door leaf 206, and on the basis of an opening movement of the gate a wire rope 202, based on which the door leaf 206 suspended or with the weight compensation device 200 is connected, is wound up. Like that Fig. 1a and 1b can also be removed, the door leaf 206 may consist of several sections 205. In this case one usually speaks of a sectional door. As already mentioned, there is the problem in known gates that the weight of the gate in many cases can be extremely high, sometimes up to several hundred kilograms heavy. By means of the spring arrangement, the dead weight of the door leaf 206 is intercepted or compensated during a closing movement with a torsion spring 203 and the energy stored thereby in the torsion springs 203 is provided for assisting the opening movement of the door leaf 206.

In Fig. 2 schematically a complete weight balance device 1 according to an embodiment of the present invention is shown. The weight compensation device comprises a spring assembly 10 with a plurality of springs 11, in particular tension springs 11, on the basis of which a gate 2, which consists of a lower section 3 and an upper section 4, can be compensated by weight and intercepted or compensated for a closing movement of the gate 2 can be. As an alternative to tension springs also compression springs or gas springs are conceivable.

For weight balance, the door leaf 2 is connected to the spring arrangement 10 by means of a connection device 20, which in the illustrated embodiment comprises connecting sections 21, 22 (eg wire cables), respectively coupled. The leaf 2 and the weight compensation device 1 are part of a gate construction 80, which further comprises guide rails 81, in which run guide rollers 5, which are fixedly attached to the individual sections 3, 4 of the gate 2. This makes it possible to guide the opening and closing movement of the gate 2 stably.

Again Fig. 2 Furthermore, according to the illustrated embodiment, the counterbalance device 2 further comprises a gearbox 30, which is interposed in the connecting device 20, between the spring assembly 10 and the gate 2. Furthermore, the counterbalancing device 1 shown has a door leaf-side bottom console with safety gear 40 and a gear engaging spring assembly-side fall arrest 70, which serve in case of failure of the connecting device 20, in particular when the wire rope 21 breaks, the door 2 to prevent it from falling , That is, when the wire rope 21 breaks, a jerky and rapid downward movement (closing movement) of the door leaf 2 to decelerate or prevent.

Like that Fig. 3a and 3b can be removed, the connecting device 20 comprises a first connecting portion 21 (eg a wire rope 21) and a second connecting portion 22 (eg a wire rope 22). The first connecting portion 21 extends from a lower end of the lower section 3 up to the gear 30. The second connecting portion 22 extends from the gear 30 to the spring assembly 10. In this way, the gate 2 via the gear 30 with the spring assembly 10 is connected to transmit power, the transmission in particular forms a positive connection. Accordingly, the spring assembly 10 can absorb and balance the weight of the door leaf 2.

Again Fig. 3b can be further removed, the spring assembly 10 is arranged such that one end of the spring assembly, which is fixed in place, in particular attached to a frame of the door construction 80, in an upper portion, in the vicinity of a curved portion 83 in which the in approximately horizontally extending guide rail 81 merges into an approximately vertically extending guide rail 81, is arranged. The other end of the spring assembly 10 is oriented downwards, in particular at an approximately right angle to the ground, in order to be able to form the weight compensation device as compact as possible.

At the lower end of the spring assembly 10, the second connecting portion 22 of the connecting device 20 is connected to the spring assembly 10. The second connecting portion 22 is further deflected via at least one guide roller 82 upwards, in the direction of arc section 83, to be connected to the gear 30, which is also arranged in the vicinity of the bow portion 83 according to the illustrated embodiment. On the connection of the wire ropes 21, 22 to the transmission 30 will be described later with reference to Fig. 6a and 6b discussed in detail.

In Fig. 4 a detail view of the ground console with safety gear 40 is shown. The floor console with safety gear 40, according to the illustrated embodiment, a bottom console 41, based on the ground console with safety gear 40 at a lower end of the door leaf 2, in particular the lower section 3, is attached. In the bottom console 41, a holding plate 42 is rotatably mounted, to which the wire of the first connecting portion 21 is connected or coupled. The wire of the first connecting portion 21, which comes from above, from the gear 30 is connected by means of a Kausche 45 to a mounting shaft 46, which in turn is connected to the retaining plate 42.

Furthermore, the ground console with safety gear 40 has at least one brake spring 43, in particular at least one leg spring 43, which pretensions the retaining plate 42 against the cable force which acts on the retaining plate 42 via the wire rope 20. However, since the spring force of the spring assembly 10 is substantially greater than the spring force of the brake springs 43, the brake spring 43 is biased and the retaining plate 42 against the bottom console 41, which acts as a stop (as in Fig. 5a and 5b shown), whereby a braking device 60 of the floor console with safety gear 40 is kept in the released state.

Now fails the connecting device 20, in particular ruptures the first connecting portion 21, is located on the retaining plate 41 only the spring force of the brake spring 43, which moves the retaining plate 42 in a braking position, with the holding plate 42, the braking device 60, in particular a cutting mandrel 61, is brought into a braking position. In the braking position, the cutting mandrel 61 is pressed with the spring force of the brake spring 43 against the vertically extending guide rail 81 and thus inhibits the closing movement of the door leaf 2, whereby a crash of the door leaf 2 is prevented. The cutting mandrel 61 has in particular cutting on the basis of which the cutting mandrel can cut into the metal of the guide rail 81 and thus the braking effect of the braking device 60 is increased.

In the Fig. 6a and 6b the previously mentioned transmission 30 of the weight compensation device 1 is shown in detail again. The transmission 30 has a base plate 35 to which the elements of the transmission 30 are attached to form the transmission as a closed component.

The transmission 30 has a larger first gear 31 and a smaller second gear, both of which are rigidly connected to a coupling device 32, 34, respectively. The first gear 31 is made in the present embodiment of plastic (for example polyamide), whereas the two gear 33 is made of a metallic material. Thus, there is a low noise during operation. Furthermore, the weight of the first gear 31 is significantly reduced, so that the mounting of the gear near the ceiling of a garage is facilitated.

Experiments have shown that the wear of the plastic gear 31 is so low during operation that there are essentially no disadvantages compared to a metal gear.

According to a further embodiment, both gears of the transmission 30 may be made of plastic.

In the illustrated embodiment, the first coupling device 32, which is connected to the large first gear 31, a first cable drum 32 to which the second connecting portion 22 of the connecting device 20 is connected and can be wound or unwound.

The second coupling device 34, which is connected to the small second gear 33, is formed as a second cable drum 34 and receives the first connecting portion 21 of the connecting device 20, which is connected to the gate 2. Hereby is also this wire 20 on the cable drum 34 up or unwound.

Like the front view Fig. 6b can be removed, the effective diameter of the second cable drum 34 is larger than the effective diameter of the first cable drum 32. In this case, the counterweight force (spring force of the spring assembly 10) is adapted to the required holding force for the door leaf 2 by the different effective diameter of the cable drums.

Like that Fig. 6a and 6b can also be removed, the two gears 31 and 32 are engaged, whereby the spring force of the spring assembly 10 can act on the door leaf 2 and thus the opening and closing movement of the door leaf 2 can be compensated or balanced by the spring force of the spring assembly 10 ,

As further the side view Fig. 6a can be removed, the two cable drums 32 and 34 each have even different effective diameter, whereby different spring characteristics are displayed.

In the FIGS. 7 and 8 the spring assembly-side fall arrest 70 is shown, which prevents a crash of the gate 2, when the second connecting portion 22 fails, so when the wire 20, which connects the second cable drum 32 with the spring assembly 10 travels. For this purpose, the spring assembly-side fall protection 70 according to the embodiment shown has a pulley 71, which is connected via a lever system 72 with a blocking element 73, in particular a blocking wedge.

The lever system 72 comprises a first lever 75 and a second lever 76, wherein the first lever is rotatably mounted approximately centrally, and is provided at one end with the pulley 71 on which the wire rope 20 of the first connecting portion 22 runs. At the other end of the first lever 75, a blocking spring 74 is connected, which acts on the first lever 75 in the blocking position. Between the storage of the first lever 75 and the end of the lever 75, to which the blocking spring 74 is connected, the second lever 76 is rotatably mounted with one of its ends.

By the tension in the wire 20 (first connecting portion 22), the pulley 71, on which the wire rope 20 runs, brought in an approximately tangential position to the wire 20, whereby the first lever 75 is deflected and is brought into a normal position.

Now fails the first connection portion 22 or ruptures the wire rope, the tension in the wire rope (first connecting portion 22) decreases and the pulley 71 is released, whereby by the spring force of the blocking spring 74, the first lever 75 is brought into a blocking position, whereby Blocking member 73, which is at the other end of the second lever 75, which is located in the normal position above the engagement point of the first gear 31 with the second gear 32, is brought down or in a blocking position or pulled. If now the blocking element 73 is pulled down, it passes between the tooth flanks of the two gears 31, 32 and blocks them, whereby a crash of the gate can be prevented.

Claims (15)

Device (1) for weight compensation of a door leaf (2) of a gate, in particular sections (3, 4) of a door leaf (2), which is arranged between a closed position, in which the door leaf (2) is arranged substantially in a vertical plane, and an opening position in which the door leaf (2) is arranged above the head, preferably substantially in a horizontal plane, comprising: a spring assembly (10) adapted to balance a weight of the gate (2), and a connecting device (20) for, in particular force-transmitting, connecting the spring arrangement (10) to the gate leaf (2), characterized in that
the device comprises a gear (30) interposed between the spring assembly (10) and the gate (2). Device (1) according to claim 1, wherein the transmission (30) has a transmission ratio, so that a spring travel of the spring assembly (10) is shorter than a stroke movement of the gate (2), wherein the transmission (30) is preferably a transmission ratio of 1: 2 has. Device (1) according to claim 1 or 2, wherein the transmission (30) in the form of a gear transmission, a belt transmission, in particular a V-belt transmission or a toothed belt transmission, or a chain transmission is formed. Device (1) according to one of claims 1 to 3, wherein the transmission maps different spring characteristics, wherein the different spring characteristics in particular be realized by cable drums (32, 34) with multiple effective diameters. Device (1) according to one of claims 1 to 4, wherein the spring arrangement (10) comprises at least one spring (11), in particular a tension spring, a compression spring or a gas pressure spring (GDF), wherein the spring arrangement (10) is preferably arranged in that it has a progressive spring characteristic, it being preferred that
the progressive spring characteristic of the spring arrangement (10) is realized by means of a progressive spring characteristic of the at least one spring (11) and / or on the basis of at least two springs (11). Device (1) according to one of the preceding claims, further comprising a gate leaf-side base console with safety gear (40), based on the connecting means (20) to the gate (2), in particular to a lowermost section (3) of a gate (2), connectable is, and is held under the action of the spring force of the spring assembly (10) in a released state, in particular the transmission (30) is interposed. Apparatus (1) according to any one of the preceding claims, wherein the transmission (30) comprises: a, preferably larger, first gear (31) which is fixedly connected to a first coupling means (32), and a, preferably smaller, second gear (33) which is fixedly connected to a second coupling device (34), wherein the first gear (31) is engaged with the second gear (33), it is preferred that
a second connecting portion (22) of the connecting device (20) in sections at the first Coupling device (32) is wound, and / or a first connecting portion (21) of the connecting device (20) is partially wound on the second coupling device (34). Device (1) according to claim 7, wherein at least one of the gears (31, 33), preferably the first gear (31), at least partially made of a plastic material, in particular polyamide, more preferably cast nylon. Apparatus (1) according to claim 7 or 8, wherein the first and second coupling means (32, 34) are formed as a cable drum, wherein preferably the effective diameter of the second coupling means (34) is formed larger than the effective diameter of the first coupling means (32).
it is preferred that
the cable drum (34) of the second coupling device (34) has at least two, preferably three, different effective diameters, which preferably line up from a center of the cable drum (34) to an edge of the cable drum (34) from a smallest effective diameter to a maximum effective diameter , Device (1) according to claim 9, in which the cable drum (32) of the first coupling device (32) has at least two, preferably three, different effective diameters, wherein it is preferred that the effective diameters line up from a smallest effective diameter to a maximum effective diameter,
being preferred
the cable drum (34) of the second coupling device (34) has at least two, preferably three, different ones Has effective diameter, which preferably from a center of the cable drum (34) to an edge of the cable drum (34) line up from a smallest effective diameter to a maximum effective diameter. Device (1) according to claim 10, in which the different effective diameters of the cable drums (32, 34) merge into one another, wherein the cable drums (32, 34) preferably have guide grooves for guiding the received connecting device (20). Device (1) according to one of claims 10 to 11, in which transitions of the individual effective diameters of the cable drums (32, 34) are formed such that the transitions each with a transition of a guide roller (5) a plurality of guide rollers (5), based the sections (3, 4) of the gate (2) are guided in guide rails (81), from an approximately horizontal guide area into an approximately vertical area coincide. Device (1) according to one of the preceding claims, further comprising: a spring arrangement-side fall protection (70), based on which the transmission (30), in particular a first gear (31) of the transmission (30), which is force-transmitting with the spring assembly (10) in communication, is blockable when a second connecting portion (22) the connecting device (20), which is arranged between the gearbox (30) and the spring arrangement (10), fails, in particular in the case of a cable break, it is preferred that
the spring assembly fall arrestor (70) further comprises: a pulley (71), in particular a plastic pulley, via a lever system (72) with a Blocking element (73), in particular with a blocking wedge, wherein the lever system (72) by a blocking spring (74) is preferably acted upon such that when the second connecting portion (22) of the connecting device (20) fails, the blocking element (73) can be brought from a rest position into a blocking position, it being further preferred that
the rope pulley (71) of the fall arrest device (70) is deflectable by a tension in the second connecting section (22) of the connecting device (20) against a clamping force of the blocking spring (74), whereby the blocking element (73) in a rest position via the lever system (72) is durable, and when the second connecting portion (22) of the connecting device (20) fails, the voltage in the second connecting portion (22) drops and thus the lever system (72) by the blocking spring (74) can be brought into a blocking position, in particular the blocking element ( 73) can be brought into the blocking position. Gate construction (80) for a gate, in particular for a garage door or industrial gate, comprising: a door leaf (2), in particular sections (3, 4) of a gate leaf (2), which is arranged between a closed position in which the gate leaf (2) is arranged approximately in a vertical plane, and an open position in which the gate leaf (2) is arranged above the head, preferably approximately in a horizontal plane, is movable, and the device (1) according to one of the preceding claims. A door, in particular a garage door or industrial door, which has a door construction (80) according to claim 14.

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