EP2252756A1

EP2252756A1 - Gate having an escape door that can be stabilized

Info

Publication number: EP2252756A1
Application number: EP09721469A
Authority: EP
Inventors: Bruno Niewöhner
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-03-15
Filing date: 2009-03-14
Publication date: 2010-11-24
Anticipated expiration: 2029-03-14
Also published as: DK2252756T3; ES2550251T3; DE102008014492A1; DE112009001184A5; PL2252756T3; WO2009115082A1; EP2252756B1

Abstract

The invention relates to a gate having an escape door that can be stabilized, comprising a gate plate and an escape door which is pivotally supported in an indentation extending from the lower gate edge of the gate plate and at least three base profiles, which are coaxially aligned at least in pairs and of which at least two are disposed on both sides of the indentation in the region of the lower gate edge, and of which at least one is fastened in the region of the lower edge of the escape door, and at least two longitudinal stabilizers, which can be displaced within the base profiles along the longitudinal axes thereof, wherein the stabilizers have backlash relative to the interior wall of the base profile surrounding them, and wherein at least two pressure plates are disposed on at least one stabilizer, which can be pressed against the interior wall of the base profile.

Description

Gate with stabilized escape door

The invention relates to a gate with stabilizable escape door, consisting of a gate plate and an escape door, which is pivotally mounted in an outgoing from the Torunterkante the gate plate indentation and at least three base profiles, which are aligned at least in pairs coaxially and of which at least two at both Sides of the indentation are arranged in the region of the lower door edge and of which at least one is fastened in the region of the lower edge of the escape door and at least two of which are arranged on both sides of the indentation in the region of the lower door edge and at least one fixed in the region of the lower edge of the escape door is and at least two elongated stabilizers, which are displaceable within the base profiles along the longitudinal axis thereof.

For big goals, such as For example, for trucks, often required by regulations of competent supervisory authorities, an escape door, which allows in an emergency, a quick exit from the building, even with the gate locked. The escape door must not have a threshold to the floor, in order to exclude the risk of stumbling on the door. As a result, however, the plate of the door is weakened, as it has a downwardly open recess for the escape door. If such a door panel is pivoted to open the door upwards under the ceiling of the room in a horizontal position, it hangs downwards, which is allowed only to a certain extent.

To ensure that this maximum permissible level is not exceeded, either costly, weighty and expensive stiffeners are required or it must be stiffening after closing the escape door Connections are made between the escape door and the adjacent sections of the door leaf.

The current state of the art describes DE 10 2004 047166 with locking pins which are arranged horizontally on the edge of the escape door and are pushed over the locking mechanism of the escape door in guides on the door panel.

A major limitation of this system is that the locking bolts can be pressed only with a limited force in their counterpart on the door leaf and therefore always have a game for this counterpart, which precludes the actually required stabilization of the door panel.

In this context, the invention has the task of developing a stabilizer, the escape door and door leaf in the closed state connects together and produces a rigid and play-free connection, while making a low-backlash and smooth movement when opening and closing the escape door possible.

As a solution, the invention presents that the stabilizers have a play against the inner wall of the surrounding base profile and are arranged on at least one stabilizer at least two And jerk plates which are pressed against the inner wall of the base profile.

The core idea of the invention is therefore that during the movement of the opening and closing a clearance between the stabilizers and their counterparts, the base profiles, exists, in the Closed condition, however, pressure plates eliminate this game by being pressed against the inner wall of the base profile.

A variant for the use of this system is that when the escape door is open, a first stabilizer exclusively in the area of

Escape door is located and a second stabilizer only in the area of the gate plate. In this state, there is no mechanically rigid connection between the door plate and the escape door, so that the escape door is freely pivotable.

If the escape door is closed to close the gate, both stabilizers are released from a possible fixation in the escape door or in the gate plate and each shifted by about half their length, so that they in corresponding counterparts on the adjacent gate plate or on the Door panel intervene.

Then the two stabilizers bridge both joints between the escape door and the goal plate. In this position, they are connected without play by means of their pressure plates with the surrounding base profile.

As a variant of the shaping of the pressure plate, the invention proposes an elongated strip. Particularly stable is a U-shaped profile, z. B. made of bent sheet steel. It makes sense that at least one pressure plate of a stabilizer in a recess of the base profile is displaceable in the longitudinal direction, so that an unimpeded movement in the longitudinal direction is possible.

At the same time, the pressure plate should be able to be pressed into the recess, in order then to transfer the highest possible forces between the stabilizer and the base profile. It is also advantageous if at the same time the recess as centering serves, which excludes unwanted pivoting of the pressure plate about the longitudinal axis of the base profile or stabilizer.

Each stabilizer must be equipped with at least two pressure plates, so that for each applied force and the corresponding

Counterforce is transferable. These two pressure plates must be pressed apart for backlash-free fixation of the stabilizer and pressed against the inner wall of the surrounding base profile.

If the base profile z. B. is square and two pressure plates are arranged therein, whose cross section is considerably smaller, but also square and the longitudinal side of the pressure plates slightly shorter than the broad side of the rectangular base profile, then both rectangular pressure plates in the larger and also rectangular base profile are always centered.

To push away both pressure plates from each other, z. B. at least one cam, which can be pivoted about an axis parallel to the Andruck- the pressure plates aligned axis.

This pivot axis can be aligned both transversely to the longitudinal axis of the base profile and parallel to the longitudinal axis or at a different angle.

If several cams are present, it makes sense to align their axes of rotation all parallel to the longitudinal axis of the base profile, because then all the cams can be pivoted together via a single axis connecting them. If all the cams are pivotable transversely to the longitudinal axis, their common movement is possible via a respective hinged lever which is parallel to the longitudinal axis.

An alternative to a cam is a pressure wheel on his

Per cap for each pressure plate has a cam.

The cams are created by a constantly growing diameter in a certain angular range. This angular range is z. B. two And jerk plates per stabilizer less than 180 °, with three, uniformly distributed over the circumference And back plates less than 120 ° and four, uniformly over the circumference arranged And jerk plates only less than 90 °.

In the basic form, the radius of the pressure wheel increases in the range of

Cams of the smallest diameter, wherein the pressure plates have a backlash against the inner wall, to the largest diameter, in which the pressure plates are pressed firmly against the inner wall of the base profile. If either the cam itself or at least one member in the power transmission for adjusting the cam has a certain elasticity, as a sub-variant of the radius can be reduced again after reaching the maximum value, whereby the cam engages in this position. It is advantageous that he then does not jump out of his rest position by slight shocks. It should be noted that the to

Overcoming the detent required force must be provided and all members of the transmission must be sufficiently rigid dimensioned to transmit this power can. A very advantageous number of pressure plates per stabilizer are two, provided that their direction of movement between the pressure position and the play-afflicted position is aligned perpendicular to the goal plate, and the base profiles are fixed so stable on the goal plate and on the escape door, that they are practically not on their surface can move.

In particular, if the base profile can be compared to the door panel or the escape door by elasticities and / or by play in the attachment move or pivot, a higher number of pressure plates is possible and useful.

A stabilizer already works with a single cam or a single pressure wheel, if the pressure plates are made so stiff over their length that even at the ends

Minimum contact force is achieved.

However, if the pressure plates z. B. have a very narrow profile or other reasons can not be performed very rigid, the number of cams and the print wheels can be increased so that over the entire length of the pressure plate away a uniform pressure force can be achieved. A sensible combination for a stabilizer are two pressure plates with two pressure wheels.

To take the pressure plates in the longitudinal displacement of the stabilizer, so to fix in their longitudinal position relative to the stabilizer, a pair of inwardly facing drivers may be mounted on each pressure plate for each pressure wheel, which are respectively arranged on both sides of the pressure wheel, wherein the

Distance between the two drivers is slightly larger than the Strength of the pressure wheel at this point. When moving the stabilizer and the pressure plate is pushed by the pressure wheel by the driver, in the axial direction. Through the game of the driver pair opposite the pressure wheel, the pressure wheel can pivot relative to the pressure plates. As a result, the cam is effective, which moves the pressure plate in the radial direction outwards and thereby presses against the inner wall of the base profiles.

An advantageous embodiment is the connection of all pressure wheels by a support tube which transmits the torque for pivoting the pressure wheels when pressing the pressure plates and at the same time leads the pressure wheels themselves mechanically. As a result, all print wheels are moved or swiveled together and simultaneously.

For the linear movement as well as for the pivoting of the support tube together with all printing wheels arranged thereon, an advantageously mounted variant is a rotatably mounted threaded spindle which extends through at least one nut within the support tube. If the

Threaded spindle is rotated and the nuts are secured in the support tube against rotation, is translated by the mother, the rotating movement of the threaded spindle in the linear movement of the support tube. So that the pressure wheels do not pivot on the greatest part of the displacement path from the stabilizer, the invention proposes that at least one outwardly projecting guide pin is fastened to the support tube, which engages in a guide groove which runs parallel to the inner wall of the base profile whose longitudinal axis extends. Guide pin and guide bring the counterforce, which is held against the torque of the threaded spindle. Only at the end of the displacement is a pivoting of the pressure wheel for clamping the pressure plate is desired. For this, the guide groove at the end of the displacement range turns into a curve which runs on the surface of a cylinder whose

Radius of the length of the guide pin corresponds, wherein the guide groove is always aligned in the region of the curve at an angle of less than 90 ° to the longitudinal axis of the stabilizer. As a result, the pressure wheel pivots about an angle which is predetermined by the deviation of the curved region of the guide groove from the straight part. This pivoting is transmitted via the support tube on all other pressure wheels, so that the stabilizer presses properly on each pressure wheel to the inner wall of the base profile.

For a larger number of pressure plates per stabilizer, in particular for four or more pressure plates, the invention proposes that the control of the pivoting movement of the pressure wheels for pressing the pressure plates out of the stabilizer out in an adjoining area. For this purpose, the threaded spindle is extended beyond the stabilizer and connected via two sequentially interconnected switching sleeves with a rotating drive, serving as a connection between the switching sleeves at least one aligned transversely to the longitudinal axis guide arm, in a partially curved backdrop on the respectively associated Shift sleeve is displaced. The advantage of this arrangement is that thus the pivot angle for pressing the pressure plates is independent of their number, so even with a very large number of pressure plates can still be very high. In both cases, the threaded spindle requires a rotating drive, such. B. an electric motor.

Another useful variant is the connection of a stabilizer with a second stabilizer via a clutch. This clutch is automatically engageable and disengageable in a sub-variant by switching lugs on the displacement of the stabilizers. Then a stabilizer can push its neighbor in one direction of movement and pull in the other direction of movement.

In a further, very interesting variant, the invention proposes slightly angled pressure plates, which thereby produce a small angle between the door plate and the adjacent escape door during pressing, when the inflexion point of the respective pressure plate is positioned exactly in the joint. This will be a shaping of

Torplatte reached together with the escape door, which counteract the sagging of the door in a horizontal position. To do this, two pressure plates arranged in a stabilizer opposite one another must at least partially retract a pressure plate at an angle into the interior of the stabilizer, and the opposing pressure plate must be angled outwards at the same angle. As a result, in the closed state of the door, the area near the escape door is pushed out of the plane by a small amount. When the gate is pivoted to a horizontal position, gravity pushes in

Limits the elasticity of the gate plate this area again closer to the plane, so that thereby the amount by which the gate sags down, is reduced.

In this arrangement, it should be noted that to achieve a

Backlash the pressure plates by a greater amount of the Inner wall of the base profiles must be withdrawn, as it is required for fully straight And Jruckplatten.

As a differently structured embodiment, the invention proposes that when the escape door is open there are two stabilizers on it. These two stabilizers can either be arranged one behind the other in a continuous base profile or two base profiles are mounted one above the other on the escape door. In the latter case, the corresponding counterparts on the goal plate must also be mounted at different heights.

For both embodiments, it is conceivable for the two stabilizers to be connected to the closing lever of the escape door via tension and compression rods, which are connected to one another via deflection levers, and to be moved jointly together with the closing lever. Then it must be ensured at the end of the displacement path of both stabilizers that the pressure plates are pressed against the inner wall of the base profile. For z. B. the aforementioned cams are used, which are pivotable transversely to the displacement of the stabilizers.

For multi-cam stabilizers, all cams should be connected by a pull-push bar aligned parallel to the travel. It is conceivable to use this pull-push rod e.g. To connect via train-push lever with the closing mechanism of the escape door and thereby move with.

When the pull-push rod with the cams articulated thereon has reached the end of its displacement, it is conceivable that the outermost cams will encounter a stop which, upon further advancement of the pull-push rod, will cause the cam to pivot and thus ensures the application of a contact pressure on the pressure plates.

Alternatively, a movement of the cam via pneumatic cylinders, hydraulic cylinders or by means of electrical drives is conceivable.

To actuate these cylinders, a hydraulic line or a tube filled with air can lead to another cylinder, which is actuated by the closing lever of the escape door.

In order to provide a sufficient operating force for the entire mechanism of the stabilizers, the closing lever could be extended beyond that usual for doors, as e.g. is common for doors on ships or in front of safes.

But also in this embodiment, the closing lever should

Pausing the operation automatically pivot in a defined position, so that an uncoordinated assignment of the state of all the actuating elements is avoided.

In the following, further details and features of the invention will be explained in more detail by way of examples. However, these are not intended to limit the invention, but only to explain. It shows in a schematic representation:

FIG. 1a: Gate plate with closed escape door

Figure 1b: Gate plate with the escape door open

Figure 2: base profile with stabilizer The figures show in detail:

In Figure 1a, a gate plate 1 is shown in perspective. In the large door panel 1, a small escape door 2 is inserted without a threshold, which is why the opening for the escape door 2 takes the form of a recess

11 in the region of the lower edge 12 of the door plate 1 has.

At the lower door edge 12 of the door and on the lower door edge 21 of the escape door 2 each base profiles 13 are attached. In the illustrated embodiment, the base profile 13 is formed cylindrically in the door plate 1 and the escape door 2 and has four grooves in its interior. In the area of the joints between the escape door 2 and door panel 1, a stabilizer 3 is shown in dashed lines, which projects into the base profile 13 on the escape door 2 to one half and with the other half in the base profile 13 in the lower edge of the door

12 is stuck.

In Figure 1a is not shown that the stabilizers 3 are slightly loosened before opening the escape door within the base profile 13 so that they are displaced with a game within the base profile 13.

However, it is very easy to understand in FIG. 1 a that the two stabilizers 3 in the illustrated state with the escape door closed

2, when spread apart within the three pedestal profiles 23, stabilize the lower edge 12 of the door panel 1. Then, the gate plate 1 as a whole can be pivoted as if it were a one-piece, stable plate which is not weakened by the recess 11. It is irrelevant whether the door panel 1 as

Pivoting about a vertical pivot axis or about a horizontal tale pivot axis is moved, or whether the door panel 1 is moved as a rigid element by means of rails from the vertical position to a horizontal position under the ceiling or whether the door panel 1 is formed by division into a plurality of hingedly interconnected strips as a sectional door that in one

Rail guide is moved either under the ceiling or on a side wall.

In Figure 1b, the same door plate 1 is drawn as in Figure 1a, but here with the escape door open 2. When you open the escape door, the fixed thereto base profile 13 is pivoted with, so has moved relative to the door plate 2. Of course, this movement is only possible if the two adjacent base profiles 13 are no longer interconnected by the stabilizer 3, which previously also bridged the joint between them. Rather, one of the two stabilizers 3 has to be moved out of the joint area. In Figure 1b of a stabilizer 3 is completely inserted into the base profile 13 of the escape door 2 and does not interfere with the opening in this state. Meanwhile, the other stabilizer 3 has moved out of the escape door 2 and is only in the base profile 13 in the area of the lower door edge 12. In this position, the escape door 2 is thus freely pivoted. FIG. 1b thus shows the position of the two stabilizers 3 with the escape door 2 open.

The stabilizers 3 are shown in Figures 1a and 1b only schematically with their outline as a dashed line. The more detailed structure of the stabilizers 3 shows.

FIG. 2: Here, as an oblique view, the base profile 13 is shown in section on the door bottom edge 12 of the door panel 1, out of which a stabilizer 3 protrudes to a part. As an exemplary embodiment of the base profile 13, a double-walled, circular hollow profile is presented, in the inner wall of which four grooves are made. Of these, the upper groove and the lower groove are used as the guide groove 16. Dahinein engages a guide pin 43, in the illustrated embodiment with a

Wheel at its end, which rolls on the inner surfaces of the guide groove 16.

Of the two guide pins 43 of this embodiment, the upper is completely visible because it protrudes from the end of the illustrated part of the base profile 13. The lower guide pin 43 is partially concealed at its end by the left pressure plate 31.

In FIG. 2, two pieces of pressure plates 31 can be seen as part of the stabilizer 3. These two pressure plates 31 have a U-shaped profile, wherein the surface which connects the two legs of this profile with each other, serves as a pressure plate which can be pressed within the groove against the inner wall 15 of the surrounding Sokelprofiles 13. The necessary force is provided by

Print wheel 4 transmitted, which is shaped as a cylindrical disc and carries two cams 41 on its cylinder surface. In the example shown, these cams 41 are formed as a wedge-shaped rising ramp, which carry on its highest part a notch into which a cylindrical counterpart engages, which is fixed in the U-shaped pressure plate 31.

It can be seen in FIG. 2 that during a longitudinal rotation of the printing wheel 4 from the position shown, the two cams 41 with their highest part press the pressure plates 31 apart. Then they squeeze inside the two grooves of the So- ckelprofiles 13 to the inner wall 15, whereby the stabilizer 3 is firmly clamped within the base profile 13.

FIG. 2 shows the threaded spindle 5, which projects out of the printing wheel 4 with a short distance. The counterpart to the threaded spindle 5, the nut is integrated in this embodiment in the print wheel 4.

In FIG. 2, it is easy to emulate how the threaded spindle 5 first moves in the direction of the longitudinal displacement of the stabilizer 3

Longitudinal axis 14 of the base profile 13 ensures: For the support tube 42 is fixedly connected to the pressure wheel 4, in which the threaded spindle 5 is located. When the threaded spindle 5 is rotated, the pressure wheel 4 is prevented from following this rotation, because it is prevented by the support tube 42 and the two guide pins 43, since the guide pin 43 limited by the guide groove 16 in the illustrated area of the base profile 13 only allow a longitudinal movement. By rotating the threaded spindle 5 so the stabilizer 3 moves in the longitudinal axis 14 of the base profile thirteenth

Not shown in FIG. 2, but easy to understand how, at the end of the travel path, the pivotal movement of the pressure wheel 4 required for bracing the two pressure plates 31 is carried out. For this purpose, the guide groove 16 of the base profile 13 in a curved area over. The guide pin 43 pointing upwards in FIG. 2 is forced into a curve (not shown) of the guide groove 16 and thereby moves towards the left edge of the image. The lower guide pin 43 will also pivot through a - not shown - curve of the guide groove 16 in the direction of the right edge of the image, whereby the required Pivoting movement of the pressure wheel 4 is initiated. This pivoting movement must then be completed when the two notches on the highest point of the cam 41 in the region of the cylindrical pressure elements of the And jerk plates 31 are.

In FIG. 2, the displacement of the stabilizer 3 in the direction of the longitudinal axis 14 of the base profile 13 is indicated by a double arrow on the support tube 42. The pivoting movement of the pressure wheel 4 for clamping the two And jerk plates 31 describes a curved double arrow on the front side of the pressure wheel. 4

LIST OF REFERENCE NUMBERS

1 gate plate

11 indentation in the region of the lower edge 12 of the door plate 1

12 Lower edge of the door panel 1 13 Base profiles in the area of lower door edge 12 and lower door edge 21

14 longitudinal axis of the base profiles 13th

15 inner wall of the base profiles 13

16 guide groove in the base profile 13 for receiving the guide bolt 43

2 escape door

21 Door lower edge of the escape door 2

3 stabilizer, in base profile 13

31 Pressure plate, part of the stabilizer 3 4 Pressure wheel for pressing the pressure plates 31

41 cams on print wheel 4

42 support tube for connecting pressure wheels 4

43 guide pin engages in a guide groove 16 of the base profile 13 a 5 threaded spindle for displacement of the stabilizer. 3

Claims

claims

1st gate with stabilizable escape door, consisting of

- A gate plate 1 and - an escape door 2 which is pivotally mounted in an outgoing from the lower door edge 12 of the door panel 1 recess 11 and

at least three base profiles 13,

- At least in pairs are aligned coaxially and

- Of which at least two are arranged on both sides of the recess 11 in the region of the lower door edge 12 and

- Of which at least one in the lower edge 13 of the

Escape door 2 is attached and

- At least two elongated stabilizers 3, which are displaceable within the base profiles 13 along the longitudinal axis 14, characterized in that

- The stabilizers 3 have a game against the inner wall 15 of the surrounding base profile 13 and

on at least one stabilizer 3 at least two pressure plates 31 are arranged, which are pressed against the inner wall 15 of the base profile 13.

2. Door according to the preceding claim 1.dadurch in that at least one pressure plate 31 is formed as an elongated strip.

3. Gate according to the preceding claim 2, characterized in that the bar has a U-shaped profile.

4. Door according to one of the preceding claims, characterized in that at least one pressure plate 31 is displaceable within a recess 16 of the base profile and in the recess 16 can be pressed.

5. Door according to one of the preceding claims, characterized in that at least two pressure plates 31 by at least one cam 41 away from each other and to the inner wall 15 can be pressed bar.

6. Door according to one of the preceding claims, characterized in that at least two pressure plates 31 are pressed by at least one pressure wheel 4, each with a cam 41 for each pressure plate 31.

7. Gate according to the preceding claim 6, characterized in that on the pressure plates 31 for each printing wheel 4 two

Driver 31 are fixed, which are each arranged opposite to one side of the pressure wheel 4, wherein the distance between the two drivers is slightly larger than the strength of the pressure wheel 4 at this point.

8. Door according to one of the preceding claims, characterized in that at least one stabilizer 3 is provided with two pressure plates 31 and two pressure wheels 4.

9. Gate according to one of the preceding claims, characterized in that at least two pressure wheels 4 are interconnected by a support tube 42.

10. Door according to one of the preceding claims, characterized in that all pressure wheels 4 of a stabilizer 3 are pivotable about its longitudinal axis.

11.Tor according to one of the preceding claims, characterized in that

- In the support tube 42 at least one nut is arranged, through which a rotatably mounted threaded spindle 5 extends and - on the support tube 42 at least one outwardly projecting guide pin 43 is fixed, which engages in a guide groove 16 in the inner wall of the base profile 13 parallel to whose longitudinal axis 14 extends,

- Wherein the guide groove 16 merges at the end into a curve which runs on the surface of a cylinder, the radius of the

Length of the guide pin 43 corresponds to and

- The guide groove 16 is always aligned in the region of the curve at an angle of less than 90 degrees to the longitudinal axis of the stabilizer.

12. Gate according to one of the preceding claims, characterized in that the threaded spindle 5 is extended beyond the stabilizer 3 and is connected via two sequentially interconnected switching sleeves with a rotating drive, wherein

Connection between the shift sleeves each at least one transverse to the longitudinal axis aligned guide arm, which is displaceable in a partially curved gate on the associated shift sleeve.

A gate according to any one of the preceding claims, characterized in that the threaded spindle 5 is driven by a rotating drive, e.g. an electric motor is movable.

14. Door according to one of the preceding claims, characterized in that a stabilizer 3 by a coupling with a second stabilizer 3 is connectable.

15. Door according to the preceding claim 13, characterized in that the coupling is automatically engaged by disengaging lugs on the displacement of the stabilizers 3 and disengaged.

16. Door according to one of the preceding claims, characterized in that of two, in a stabilizer 3 oppositely arranged pressure plates 31, a pressure plate 31 is retracted at least partially angled into the interior of the stabilizer 3 and the opposite pressure plate 31 with the same Angled angle pointing outwards

17. A method for using a gate according to one of the preceding claims, characterized in that

- With the escape door 2 open, a first stabilizer 3 is positioned exclusively in the area of the escape door 2 and a second stabilizer 3 is located exclusively in the area of the door plate 1 and

- to close the gate

- In the first step, the escape door 2 is closed and

- In the second step, no pressure on the pressure plates 31 of both stabilizers 3 is exercised and - in the third step, both stabilizers 3 are each shifted by about half their length until both stabilizers 3 about one half in the door leaf 1 and with the other half are located in the escape door 2 and

In the fourth step, pressure is again exerted on the pressure plates 31 and the gate together with the clamped in stable

Escape door 2 is opened and

- To open the gate, the above steps take place in reverse order.

18. A method of using a gate according to the preceding claims 5 and 17, characterized in that

- In the second step, the cams 41 of both stabilizers 3 no longer exert pressure on the pressure plates 31 and

- In the fourth step all cam 41 again exert pressure on the pressure plates 31 and the gate is opened together with the escape door 2 clamped therein stable.

19. A method for using a gate according to the preceding claims 17 or 18, characterized in that in the third step of the door closing the first stabilizer 3 is coupled to the second stabilizer 3 and this moves with and retracts again in the corresponding step of the door opening.

20. A method of using a gate according to the preceding claims 16 and 17, characterized in that in the fourth step of the Torschließ the angularly shaped pressure plates

31 with its first leg in the door panel and with the other, angled against the first leg second leg in the escape door 2, and in the fourth step means the pressure of the cam 41 and within the elasticity of the door plate 1 and the escape door 2 each a Angle between the left part of the door plate 1 and the escape door 2 and the right part of the gate plate 1 forms.