DE1915366A1 - Gate, the gate leaf of which can be moved lengthways to itself by means of a mechanical drive - Google Patents

Description

1915369

PATENT LAWYERS

DIPL.-ING. F. THIELEKE FRICKE

. DR.-INQ. R. DÖRING DIPL.-PHYS. DR. J. FRICKE

BRAUNSCHWEIG MUNICH

Dr. Carola Malkmus-Dörnemann, née Dörnemann Salzgitter-Bad, Am lappenspring 3

"Door whose door leaf can be moved lengthways to itself by means of a mechanical drive"

The invention relates to a door, the door leaf of which by means of a mechanical drive longitudinally to itself by a die Door opening delimiting gate post to the opposite Gate post and back is slidable.

There are sliding gates and swing gates known. Both must be anchored on or in the area of the side goal posts. With large door leaf dimensions, i.e. large door opening width, extraordinarily high loads have to be diverted in this way. The well-known sliding and swing gates are therefore structurally complex and expensive to achieve the necessary inherent stability. The same applies for the anchoring devices.

Another disadvantage of these known sliding and swing gates is that they are operated laterally in the area Next to the door opening or behind the door opening, there must be free space in which the door leaves can pivot or the door leaf can be pushed in. Frequently

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however, such free space is not available.

One of the most serious disadvantages of the well-known goals of the type mentioned can be seen in the fact that door leaves for goals with a large door opening width because of the large dimensions are so bulky that they can be transported from the factory is associated with very great difficulties up to the construction site. A rail transport of such door leaves is often not possible if certain heights are exceeded because the door leaf to be transported is then would collide with bridges. It is therefore usually unavoidable that the door leaves are transported in a disassembled state and are only put together at the construction site. A construction site assembly but is undesirable for numerous known reasons

The invention is based on the object of remedying this and to design a gate of the type mentioned in such a way that it can be achieved easily and simply and without great effort static load-bearing capacity and can be manufactured for the anchoring without major construction costs, with the door leaf also should be designed so that it can be converted at least for transport into a state in which there is only a little tree claimed.

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To solve the aforementioned problem, the initially designated gate is characterized according to the invention in that the Door leaf composed of rigid individual elements connected in the manner of limbs and by means of the drive mechanism. Direction for opening and closing on a arranged on a goal post, rotating about an axis running in the vertical direction Roller or reel is wound up or can be unwound from this.

Although it is already known, it leafs together like a limb connected rigid individual elements and such a door leaf to open and close the gate wind up or unwind on a suitably driven roller or reel. In the known designs such However, gates are designs that are used as hall or green building gates and in which the winding roller or the reel rotates about a horizontally extending axis arranged above the top edge of the door. Such an approach However, it is for gates of the type standing in Hede, namely for gates that are used for enclosing factories or the like. are not permitted because structural elements above the door opening restrict the door clearance height. To the solution the object underlying the invention were therefore the known goals with links composed of rigid elements Unsuitable for windable door leaves.

According to the invention, however, in that the door has a door leaf composed of limbs and which can be rolled up,

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achieved a number of significant advantages. First of all, the large overhang of the gate is avoided, which is the case with known Explanations for this forces the goals and their posts to be constructive to be trained in such a way that they can withstand high static loads. The winding roller rotating around a vertical axis or reel of the new door also ensures that the door leaf can be accommodated in a small space when open leaves. There is therefore no need to keep large free spaces next to or behind the door opening. The new door or the door leaf of the new door can be brought into one state by being wound on the winding roller or reel in which it is only small, even with large dimensions, i.e. large door opening width and large door leaf height Takes up space. For the transport of the door leaf, therefore, no special vehicles are required for the new door, is still at given clearance heights of underpasses or the like to be considerate

A preferred embodiment of the new door is characterized in that the individual elements of the door leaf have joints and springs are connected and in the closed position are aligned with one another under the influence of the springs, in the open position by overcoming the springs on the roller or the reel are arranged to each other. Through this design it is achieved that the door leaf in the closed position or locked position largely has the character of a

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known rigid sheet of a sliding gate is aligned.

With another possible embodiment of the new gate the rigid character of the door leaf in its closed position is achieved by the fact that between adjacent individual elements The door leaf can be disengaged when the door is opened instead of the springs and can be engaged when the door is closed Connecting bars are arranged, which rigidly connect the adjacent individual elements in the engaged state and cancel this connection for winding up the door leaf in the disengaged state.

The door leaf can also be based on the basic concept of the design of most fences and enclosures according to the invention be designed so that the individual elements of the door leaf as bars extending in the vertical direction are formed, which at intervals on at least two horizontally arranged belt-like bands or Chains are attached, with the rod furthest from the roller or reel reinforced and designed as a door leaf side rail is equipped with a roll support device to prevent the spar from tilting, which is connected or at the same time with a drive device that is effective at least when the gate is closed is equipped. With such a door there is no need to spring the individual elements of the door leaf duroh

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or to lock other connecting elements so that a rigid character of the sheet is achieved. With the one just mentioned possible embodiment of the door leaf is the Stability and rigidity of the door leaf achieved in that the belt-like belts or chains are stretched taut, such as this is the case with fences or the like.

In a preferred embodiment of the new gate are for the Eollstlitzvorrichtung guide rails provided.

Numerous different forms of drive for the new gate can be realized. For goals where one Tension of the belt-like straps or chains is required to increase the stability of the gate, a Another embodiment of the gate, which is characterized in that the drive device consists of a single drive with the roller or the reel connected winding drive and a door leaf for closing the door from the roller or the reel pulling tow drive consists, both drives counteracting each other in a controlled manner in order to open and closing to achieve a controlled tightening of the door leaf.

With regard to the arrangement of the drive or the individual drives, numerous different designs can be used realize. According to the invention it is possible, for example,

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that the sole drag drive is built into the door leaf side rail and gear is connected to at least one role of the roller seat device carrying this spar.

But it is also possible for the towing drive to be designed in the manner of an endless cable drive and in or under the guide rails is arranged for the roller support device and is connected to a driver of the roller support device.

Another possibility is to train the tow drive in the manner of a cable winch and to use it with a Closing the gate releasably equipped with the side rail connectable pull rope, which when not in use and open Gate lies on the floor, with the towing drive in the one opposite to the roller or the reel for receiving the gate leaf Goal post is added.

It is possible to use a common one for both drives Make drive motor, but each individual drive device Equipped with a brake in order to achieve the required tightening of the door leaf when opening or closing to enable.

In another embodiment of the new door, each drive is provided with its own drive motor and a brake. >

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A particularly simple and reliable design of the drive device can be achieved if the drive motors are electric motors and the brakes are electromagnetic brakes are provided «

Another possibility of designing the new door is to design the drive motor as hydraulic motors, which act alternately as a motor and a brake.

To the door leaf during the opening and / or closing movement reinforce against forces acting in the direction of passage through the gate, it is recommended to use the Ro 11 support device with at least equip two pairs of rollers, which resiliently or mechanically against each other or apart and thereby with the Profile of the guide rail can be braced to counteract tilting movements of the side rail.

In a further embodiment of the new door, the winding drive or the winding roller is equipped with an energy storage device lifted in the form of a spring arrangement or in the form of cable winches Weights equipped, and the energy storage is either when opening or when closing the door is actuated and serves as a drive device when the other door is actuated.

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Alternatively, the new door can also be designed so that the tow drive is equipped with an energy storage device is, optionally in the form of a spring arrangement or a weight arrangement that can be raised and lowered by cable winches formed and optionally connected to either the winding roller or the drag drive to the when a door is operated stored force as the driving force for the other door actuation to take advantage of.

Structurally, the gate can be simplified even further. that magnetic brakes are dispensed with by the drive devices Have electric motors, which are also designed as brakemotors, around the when the door is operated to enable the required tension of the door leaf.

Exemplary embodiments of the new gate are in the drawings shown.

Fig. 1 shows a partially sectioned front view of a possible embodiment of the new gate.

Fig. 2 shows the gate according to Fig. 1 in a sectional view Viewing along the line II-II in FIG. 1.

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Figures 3 and 4 show details of the gate according to Pig. 1 and 2 and show how the towing drive required for moving the gate in and out can be arranged,

Pig. 5 shows another possible embodiment of the new one Tores.

Pig. 6 shows the gate according to Pig. 5 in a sectional view with the section plane running along the line VI-VI in FIG. 5.

7 shows another possible embodiment of the new one Tores.

Pig. 8 shows the goal according to pig. ¹ J in a sectional view at along the line VIII-VIII in Pig. 7 running cutting plane.

Pig. 9 and 10 show details of the new Gates used roll support device in sectional view.

Pig. 11 shows a possible further embodiment of the new Torea in a front view.

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Pig. 12 shows the door according to FIG. 11 in a sectional view with the section plane running along the line XII-XII in FIG.

Fig. 13 shows a schematic drawing of the drive device of the new gate.

14 shows a schematic drawing for a further possible embodiment of the drive device of the new door.

15 and 16, 17 and 18 show details of a gate, its link-like interconnected door leaf elements when being wound onto the roller or reel automatically unlocked and pivoted against each other, while aie when unwinding and extending under Abolition of the articulation are rigidly connected to one another in such a way that the door leaf is a rigid element forms.

In the figures, a gate is shown, which is used to close a Gate opening 1 is used. The gate opening 1 is from a gate post and a stop post 3 limited. At least the goal post 2 is hollow and shaped like a housing. He takes in its interior on a reel or a winding roller 4, which is mechanically drivable and thereby around one in the perpendicular direction running axis rotates. To close the door opening 1

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serves a door leaf 5. This door leaf is articulated with each other connected in itself rigid individual elements 6 composed. The individual elements 6 are around one in the perpendicular direction extending axis pivotable against each other, so that the door leaf 5 using the articulated connection of the Wind individual elements 6 onto the winding roller of each reel 4 or can be pulled off to close the door opening

In the embodiment of the door shown in FIGS. 1 and 2, the individual elements 6 of the door leaf 5 are relatively broad. These individual elements can either be in the locked position when the door leaf is extended by springs not shown and acting between adjacent elements 6 or by devices to be described so rigidly connect with each other that the door leaf 5 in its extended state regardless of his link-like structure acts as a rigid component.

As can be seen in FIGS. 1 and 2, a winding drive 7, which is used directly to drive the winding roller or the reel 4, is used acts on a shaft 8 of the winding roller 4. In this embodiment, it is recommended that the first side rail 9, with which the door leaf 5 engages on the stop post 3 to be equipped with a towing drive 10. This tow drive is arranged inside the side rail 9 and acts un-

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indirectly on rollers 11 »which forms a support device for the extending edge of the door leaf 5. The gate is with two drives, namely the winding drive 7 and the towing drive 10, which work appropriately against each other in order to ensure a tight guidance of the door leaf 5. The winding drive 7 must when retracting the door leaf 5 a Overcome braking force generated by the tow drive 10. Conversely, the drive device is switched so that the Tow drive 10 when closing the gate must overcome a braking force of the winding drive 7, which is suitable to tighten and align the extending door leaf 5.

Another possible embodiment of the drive device can be seen in FIGS. In this case, a winding drive 7a is provided which does not act directly on the shaft 8 of the winding roller 4, but rather acts on the reel 4 via a cable drive 12. In the fence post 2, which is known to have a housing-like design, a retraction drive 10a is arranged, which acts on the door leaf 5 via rollers 13 and causes the door to open. In this embodiment, the individual elements 6 of the door leaf are pushed onto the winding roller 4 ^{, the} winding drive 7a serving to extend the door having a braking effect.

Conversely, when the winding drive ¹ Yes is operated in the direction of the arrow shown, the individual elements 6 of the door leaf 5 are unwound, and the door leaf 5 becomes

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extended in the direction of the arrows from the housing-like post 2, until it snaps into a suitable recess 14 on the stop post 3. With this extension of the Door leaf 5, the tow drive 10a serves as a brake.

The gate shown in Figures 5 and 6 differs from the * gate according to Pig. 1 to 4 in that its door leaf 5 is not formed from relatively wide individual elements 6, but instead from rigid rods 15 arranged in the perpendicular direction and provided at a mutual distance, which are attached to belt-like bands or chains 16 extending in the horizontal direction. A stability of the door leaf 5 designed in this way can only be achieved by tightening or tensioning the belt-like bands 16. Another difference to the door according to FIGS. 1 to 4 is that the door according to FIGS 5 forces _t that act in the direction of passage through the gate is able to withstand. The roller support device 17 is equipped with rollers that run on the normal floor. However, it has a driver 18 which engages in a guide slot 19. This driver 18 is at the same time also connected to an endless belt 20, which is part of a drag drive 10b, which is used to close the gate. This drag drive is

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geared with a winding drive 7 ^ connected, which is similar as in the case of the gate according to FIG. 1, the gate leaf 5 is wound onto the winding roller or reel 4. In this embodiment the drive device 7b, 10b is through appropriate gear connections as well as through in detail Not mentioned braking and coupling devices ensured that the belt-like belts 16 both during retraction the door leaf as well as during the extension experience the necessary tightening to give the door leaf the required stability to rent.

The gate shown in FIGS. 7 and 8 differs from the gate shown in FIGS. 5 and 6 only in that the roller support device 17 runs within a guide rail 21 which is concealed in the floor and which is covered up by a link belt 22 to prevent contamination is. The roller support device 17 of the door according to FIGS. 7 and 8 has no special driver, but the side rail 9 is directly connected to the endless belt 20 of the towing drive a 10b. The winding drive is designed accordingly. However, as can also be seen in FIG. 8, an additional drive motor 10c can be provided in the stop post 3, by means of which the drag drive 10b becomes independent of the geared connection with the winding drive Tb. Only suitable dimensions are required for this training

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took to take so the drives braking against each other . act to tighten the door leaf 5.

In Figures 9 and 10, two embodiments of an oil support device 17a and 17b, respectively, are shown. Both Rollestut2 ~ devices cooperate with a guide rail 21, which is arranged in the floor and concealed from goal post 2 to stop post 3. In the case of the Hollenstützvorriehtung 1? A running rollers 23 are mounted on the outside of the guide rail 21 directly in the body of the support device 17a, while a second pair of rollers 24 is connected to the body of the roller support device via a spring-loaded arm 25 and these rollers 24 on one of the rollers 23 The lugs 23 and 24 work together in such a way that, under the influence of the spring 26, they clamp between them the part of the profile of the guide rail 21 lying between them. The size of the spring tension depends on how high the clamping forces and thus the resistance of the spar 9 to forces that act in Tordtiröhfahrtörichtuag is.

In the roller seat device, which is inclined in FIG. 9, a part of the support device is outside of the ? guide rail and another part inside the guide rail uatergebraebt. In the embodiment that the fig * fö

shows, the roller support device 17b is fully inside the guide rail 21 arranged. This roller support device 17b also has normal rollers 23, which are resilient Supported counter rollers counteract such that the already mentioned clamping takes place. At the roll support device 17b, however, the rollers 24 are mounted displaceably in the vertical direction in a slot and are spring-loaded in such a way that that they run within the profile of the guide rail 21 on the running surface that the rollers 23 used Facing tread.

In the case of the gate shown in FIGS. 11 and 12, there is the difference to the gates already described is that the towing drive 1Od is housed in the stop post 3 and is designed in the manner of a cable winch. The tow drive 1Od is provided with a cable 26 that connects to the side rail 9 is connected. The towing drive 10d and the winding drive 7b act on one another in the manner already described counter and ensure that the door leaf 5 both in the retracted state and in the extended state the necessary Undergoes tightening. The roller support device I7 can be used as simple roller block with rollers running on the floor or with profiled rollers for engaging in corresponding Be equipped with guide rails.

The cable drive of the towing drive 1Od is designed in such a way that that the pull rope 26 when fully on the reel 4

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wound door leaf 5 is extended so long further from the towing drive 1Od that the rope 26 finally slack and lies loosely on the floor. This avoids that the rope 26 forms an obstacle blocking the passage through the gate or that it has to be unhooked and removed from the spar 9 by hand. Such manual work can, however, if necessary be made. In the ^ ig. 13 is a possible one. Design of a mechanical drive for the gate shown · The drive is made up of one in the manner already mentioned Winding drive 7 and a towing drive 10 together. Both are driven in the example shown by a common electric motor 27, which on a main drive shaft 28 works. Bevel gears 29 supply the driving force of the motor 27 to one-way overrunning clutches 30. These are arranged so that their transmission directions are opposite to each other are. The overrunning clutch 30, which belongs to the towing drive 10, is on a common shaft 31 an electromagnetic brake 32 is provided. The take-up roller or the reel 4 is in turn provided with the associated overrunning clutch 30 and a further electromagnetic brake 33. The following mode of operation is achieved by means of a suitable electrical circuit. When the electric motor 27 rotates in one direction is working, for example the winding drive 7 is actuated, i.e. its overrunning clutch 30 is loaded in the reverse direction, while the overrunning clutch 30 of the push drive test passes through. The electromagnetic brake 33 on the winding roller

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4 is de-energized * The door leaf, not shown, is on the Winding roller 4 pulled up. At the same time, however, is the electromagnetic brake 32 of the towing drive to excited - and causes a predetermined deceleration through which the door leaf is tightened to a predetermined extent. When reversing the direction of rotation of the electric motor 27, the electric magnetic brake 32 is de-energized and for this the brake 33 of the winding drive 7 is excited Overrunning clutch 30 is stressed in the blocking direction »during the overrunning clutch 30 of the winding drive 7 is actuated in the freewheeling direction. With this actuation of the drive device, the closing of the door or * extending the door leaf 5 corresponds again, this time through the electromagnetic brake 33 'achieves that the door leaf is taut is excited »

In the case of the drive device described, "the gear elements used, such as the shaft 28, the bevel gears 29, ate freewheel clutch 50, etc. *, can be replaced by other similar or identically acting Cretrieli elements" · 2ahiiantriebe _t chain branch drives and cable drive drives are suitable to replace the shown drive mechanisms. "It is also atögliöh" to use two drive mechanisms, which are suitable either for suitable mechanical pulps or also by electrical excitation, the recommended kneading process J2 and shown in fig * 13 33 to

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substitute.

In Fig. 14 it is shown that the drive device can optionally also be built on a hydraulic basis * ler electric motor 27 drives a hydraulic pump 34 1 in this Aüsführungsförm the drive device while the winding drive 7 from a hydraulic motor 35 and the sole ep pant rieb 10 WK a hydraulic motor 36 can be formed. Both are connected to the hydraulic pump 34 via a valve box 37 and corresponding lines.

Suitable measures are taken to ensure that when the winding drive is working, the hydraulic motor 56 of the Scstilepgäu drive generates a braking force * while, conversely, "d ^ it"? when the towing drive 10 is working, the hydraulic motor $ f exerts a braking force.

In Fig. 5 to 18 it is shown how a TorMatt 5 ^ & M & individual articulated elements 6 zuaijjffleäges-et24i i when moving in and out of the gate post 5 or * wind up on the reel 4 or the winding roller automatically in the connecting joints 38 can be locked and unlocked. As shown in FIG. 16, adjacent individual elements 6 of the door leaf are connected to one another, for example via the joint 38 shown there. Without further measures, the door leaf units 6 can therefore be pivoted around this joint: 38 e.g. while being wound onto the winding roller 4.

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A locking device is used to form a door leaf 5 which acts as a rigid unit in its locked position 41. This has a strap 42 attached to the spar 39, which then, when the individual elements 6 assume a stretched position with respect to one another, through a slot 43 to ins Interior of the spar 40 extends. The tab 42 has a hole 44. A locking bolt 45 engages in this hole. This locking bolt, in turn, is guided in the spar 40 so that it is vertically flexible and longitudinally displaceable towards itself. He is loaded by a spring 46 in such a way that it tries to remain engaged in the hole 44. The hole 44 engages »Arm-shaped approach of the locking bolt 45, which is tapered at its engaging end, while the The main part of the locking bolt is designed in the form of a shank 47 with a square cross-section and against rotation about its longitudinal axis in the. Holm 40 is performed. The length of the shaft 47 is dimensioned so that it has a considerable Piece protrudes beyond the upper edge of the spar 40.

In the post 2, a control element 48 is attached, which two Has inclined guide surfaces 49. The length of the part of the shaft 47 protruding from the spar 40 is chosen so that that, plus a certain amount of security, it corresponds to the path by which the shaft 47 must be moved, to push the locking bolt 45 out of the hole 44. When the door leaf 5 rushes in the direction of if 50 in Fig. 15

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is moved, then join the protruding ends of the respective shafts 47 in the area of the guide surfaces 49 and are displaced lengthways to themselves against the action of the respective spring loading them until the locking bolts 45 step out of the holes 44. At this moment, when the gate is opened, the mutual locking occurs two adjacent individual elements 6 of the door leaf canceled. If this position of the locking bolt 45 or his shaft 47 maintained until the individual elements 6 take up an angular position to each other by winding, then the bolts can then be released again will. When the door leaf is extended, i.e. unwinding from the reel or the winding roller 4, the shafts 47 of the locking bolts occur 45 with its part protruding from the spar 40 again into the area of influence of the control element 48 and are now detected by the other guide surface 49, shifted longitudinally to itself until they counter the action of the spring are lowered so far that they can enter the holes 44 in the tabs 42, which by the meanwhile taking place Alignment of adjacent individual elements 6 in a stretched position through the slot 43 from the spar 39 into the spar 40 have inserted. When gradually leaving the guide element 48, the shafts 47 and locking bolts follow the force of the spring 46 and, supported by the conical design of the tips of the locking bolts 45, enter the Lö-oher 44 of the tabs 42 a. This way is one

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renewed secure locking of adjacent individual elements 6 of the door leaf 5 causes. If the locking bolts 45 be slightly conical along the entire length, can also bring about an absolutely backlash-free locking.

The described configuration of a moving in and out self-locking and unlocking, from individual elements composite door leaf can be varied as desired.

Claims (1)

- 24 claims y, its door leaf by means of a mechanical drive along to itself from a gate opening delimiting Gate post to the opposite gate post and back is displaceable, characterized in that the gate leaf (5) is made of limbs coherent, rigid individual elements (6, 15) composed is and by means of the drive device (7, 10) for opening and closing on a gate post (2) arranged roller (4) or reel rotating about an axis running in the vertical direction can be wound up or unwound from this is" 2. Gate after. »Uasprueh 1, characterized in that the individual elements (6) of the door leaf are connected via joints (38) and springs and in the closed position under the influence of the springs to each other aligned in the open position under tiberwäung the celebrations on the roller (4) or the reel at an angle, are arranged to each other « 3. Door according to claim 2 _f, characterized _f that between adjacent individual elements (6) of the door leaf (5) instead of der.Federn "when opening the door ausiüekbere _f when closing the door -25- 80984 3/02 88, engaging connecting bolts (451 47) are arranged, which rigidly connect the adjacent individual elements in the engaged state and this connection for winding of the door leaf in the disengaged state. 4. Gate according to claim 1, characterized in that the individual elements (6) of the door leaf are designed as lattice bars (15) running in the vertical direction, which are spaced at least two horizontally arranged, belt-like belts (16) or chains are attached, the roller (4) or reel furthest lattice bar reinforced as a door leaf side rail (9) and with a roller support device (17) is equipped to prevent the spar from tipping over, at the same time with at least one when closing the gate effective drive device (10) is connected or equipped. 5. Gate according to claim 4, characterized in that for the roller support device (11) Guide rails (21) are provided. 6. Gate according to one or more of claims 1 to 5 »characterized in that the Drive device consisting of a winding drive (7, 7a, 7b) connected to the roller (4) or the reel by gearing -26-9 09843/0268 and one of the door leaf (5) for closing the door of the Roll or the reel pulling drag drive (10, 10a, 10b, 10c, 1Od) consists, and that both drives are mutually exclusive counteract in a controlled manner in order to achieve a controlled tightening of the door leaf when closing and opening. 7. Gate according to one or more of claims 1 to 6, characterized in that the Tow drive (10) built into the door leaf side rail (9) and geared with at least one roller (11) of this Spar-bearing roller support device is connected. 8. Gate according to one or more of claims 1 to 6, characterized in that the Towing drive like an endless cable drive (20) ψ is formed and arranged in or under the guide rails (21) for the roller support device (17) and is connected to a driver (18) of the roller support device. 9. Gate according to one or more of claims 1 to 6, characterized in that the Tow drive is designed in the manner of a cable winch (10d) and a for closing the door with the side rail (9) has connectable pull rope (26), which when not -27 -9 0 9 8 U 31 0 2 8 8 custom and open gate lies on the floor, and that the towing drive (1Od) in which the roller (4) or the reel opposite the gate post (3) is received. 10 »Gate according to one or more of Claims 1 to 9» characterized in that a common drive motor (27) is provided for both drives (7 * 10), and that each of the drive devices is equipped with a brake (32i 33) to tighten the gate Ktatt to enable 11 «ϊογ according to one or more of claims 1 to 9 *, characterized in that the drive (7 * to) has its own drive motor xmä a brake, 12. To, r according to one or more of claims 1 to 11 »4a 4« peil ge identifies t _t that as Electric motor © (2?) Xmä are provided as brakes electric (32, 33). Gate according to one or more dex claims 1 Ms 11, characterized by »that the drive motors sin formed as Hyetraiilikmotore (35 * 36) t which afewecfeselitä as Kotor ubgE as a brake -28- 8098 43-A.fr:2&Q ·, j:. 14. Gate according to one or more of claims 1 to 13 » characterized in that the roller support device (17) has at least two pairs of rollers (23, 24) which resiliently or mechanically against each other or apart and thereby with the profile of the guide rail (21) can be braced to To counteract tilting movements of the side rail (9). 15. Gate according to one or more of claims 1 to 14, characterized in that the winding drive or the winding roller with an energy storage device is equipped in the form of a spring arrangement or in the form of cable winches raised weights, and that the energy storage device is operated either when opening or when closing the gate and with the other Door actuation serves as a drive device. 16. Gate according to one or more of claims 1 to 13, characterized in that the Tow drive is equipped with an energy storage device, which is optionally in the form of a spring arrangement or one of Cable winches raised and lowered weight arrangement and optionally either with the winding roller or the Tow drive is connected to the force stored during one door actuation as the driving force for the other To take advantage of the door actuation. 9098 A3 / 0268 " ⁹ " 1S15366 17 · Gate according to one or more of Claims 1 to 16, characterized in that the Drive devices have electric motors, which are also designed as brakemotors to the to enable the required tension of the door leaf to operate the door. 9098A3 / Q268