DE4400940C1 - Automatic sliding door with at least one leaf - Google Patents

Abstract

An improved automatic sliding door with at least one leaf (1', 1'') exhibits a coupling device and an auxiliary drive, which opens the door automatically in the event of abnormal operation. The improvement comprises the following features - in normal operation, the auxiliary drive can be moved along with the drive transmission means (17) and the associated door leaf (1', 1''), - a coupling device (27) is provided between the door leaf (1', 1'') and the drive transmission means (17), - the auxiliary drive is supported, on the one hand, at least directly on the door leaf (1', 1'') assigned to it and, on the other hand, at least directly on the drive transmission means (17), - in abnormal operation, in particular in the event of a power failure, the coupling device (27) is opened, the auxiliary drive coming into effect in the process, and - the auxiliary drive has sufficient energy with the automatic opening of a door leaf (1', 1'') assigned to it. <IMAGE>

Description

The invention relates to an automatic sliding door at least one wing according to the preamble of claim ches 1.

Especially in public buildings, but also in many Businesses, companies, offices, medical practices as well as in Restaurants, hotels etc. are becoming increasingly moto rically driven doors used. Enjoy it the sliding doors are very popular.

Such motor-driven sliding doors also have the advantage that the shooting using sensors doors can open automatically when there is one Person approaching the sliding door. After leaving the immediate baren door area then close the doors themselves constantly.

In addition, there are editions in almost all countries  conditions and regulations that are deemed absolutely necessary To perform security functions. This security radio ions concern u. a. those dangerous situations as in for example in the event of a power failure and / or in the event of a panic occur. In such situations, the doors must can be opened at any time, even manually, to always open a free escape route.

Door constructions have proven particularly useful here, that work like normal sliding doors in normal operation, and which also have the safety function, that they are under adjustable pressure from any position swing outwards. On the one hand, this affects the sliding door wing itself and, if necessary, on the other also side wings provided to the side of it. The like doors that meet the applicable safety standards are for example from the prospectus of the company for Door automation "Record Total door opening system" (9.553 / 400- / 6000-3 / 89 B). This security system is equally with a single leaf as for example as a two- or multi-leaf automatic sliding door can be used.

According to WO 90/13723 or DE 89 40 762 A1, it is now also proposed with an automatic sliding door with at least to provide an auxiliary drive for a wing. With normal When the door is closed, energy is supplied to the auxiliary drive and stored in it. In the event of a power failure (power failure) and thus simultaneous decoupling of the normal drive this previously stored energy is now used to to open the sliding door.

In the case of a double-leaf door, there is a power failure who moved a door leaf into its open position, whereby by the rotating belt drive and also in Second coupled sense of an opposite movement  Door wing in the opposite direction, d. H. also in its open position is shifted. Preferably there is the auxiliary drive from a rubber-elastic element, the at one end on one of the two door leaves themselves is attached and then via a pulley to one Fastening point on the profile supporting the door leaf rail, the so-called fighter. This long way is necessary to prevent the increase due to the elastic Element applied tensile forces related to the maximum The swing door adjustment path does not increase too much to let. According to DE 92 00 341 U1, the auxiliary drive comprises a tension spring in the form of a long coil spring.

However, this construction has several disadvantages.

On the one hand, this must preferably be in the form of the elasto mentioned force element formed with each norma len closing process of the door energy to be supplied in Emergency in the event of a power failure, for example energy to move the sliding door in the opening position. I.e. with every opening and Closing the door will force the carriage memory loaded and unloaded disadvantageously. At A broken belt is security, if only with one Lift mechanism is not guaranteed. Because via which only an intended energy store is usually provided only the one door wing connected to it is di directly influenced and moved to the open position, whereas the second opposite door wing only over the with moving belt even in the open position that can.

Finally, it should be noted that almost all Countries have security regulations that are the maximum Closing force limited to a certain value. Frequently a value of 150 N is given here. As for the previous one explained generic state of the art of  Door leaf against the force of the Spring storage must work, the decrease remaining, available only for the door closure standing forces. For example, would that in the power spit cher stored energy would be 70 N, at a maximum permissible total force of 150 N only 80 N to close the actual door leaf To be available. It can also be seen from this that a second energy accumulator only to operate the given if the provided second door leaf cannot be used, because then by the closing process with a maximum of 150 N already 140 N are required to close the two energy stores load. In addition, minimization in the at least one energy accumulator with each closing process charged energy not possible, otherwise in one Emergency, especially in the event of a power failure, the opening time which is at least one wing door too big. But here too there are usually prescribed maximum times, inside of a door wing altogether or for example 75% or 80% open.

The object of the present invention is therefore a improved sliding door compared to the prior art create arrangement.

The task is according to the invention in accordance with solved claim 1 specified features. Advantageous Ausge Events of the invention are set out in the dependent claims give.

By the present invention, essential, against Surprising improvements over the prior art achieved.

According to the invention it is namely provided that the one Carriage device carrying the door wing via a coupling  with the driving the door leaf and preferably in Form of a rotating belt trained transmission medium coupled and therefore separable. About a with slave device, which is attached to the belt, and the mentioned subsequent clutch is usually the Carriage device in opening and closing movement Normal operation and opened the door above and closed.

In the event of a power failure, the between the take-away and the Carriage device provided coupling automatically opened so that one moves with the entire arrangement bar energy store takes effect and the door at now driver not moved due to power failure or propulsion or transmission means not moved into the open position is adjusted.

This construction principle results in the over surprising possibility that the energy store as mitlau fender energy store is formed. I.e. deviating from State of the art, the energy accumulator is always loaded. I.e. he must turn off the door every time the door closes not reloading from the state of the art every time be because in normal operation when opening the door none, as in the prior art, is mandatory written discharge of the energy accumulator has occurred.

According to the invention, the energy store is supported once at least indirectly on the drive or transmission agent (preferably in the form of the circumferential belt) and on the other hand on the carriage device.

The Mit connected to the drive means is preferred slave device in the form of a free carriage stalten, preferably via a magnetic coupling with the the carriage device carrying the actual door wing,  d. H. usually a first of two scheduled runs car is coupled. In the event of a power failure, the magnetic clutch automatically switched off, so that due to the always moving energy storage with now undisguised Carrier, d. H. Carriage and circumferential belt, same probably the door leaf in question in its open position can be adjusted.

Since, as stated, the moving energy accumulator is not every time the door is closed in normal operation must be reloaded, the basic are available according to the safety regulations maximum closing forces limited at the top (e.g. 150 N) for the usual closing of the door fully for ver addition.

The principle according to the invention also opens up the others Advantage of an appropriate security construction can be provided for each individual door leaf. Even in the event of a break in the drive means, i.e. the rotating one Drive belt, so each door leaf can work independently and be pivoted independently into its open position. All that is required is the usual electronic over security device in the event of a detected Belt break automatically opens the magnetic clutch and the release and opening intended for emergency operation movement of a door leaf allowed.

Should the power be switched on again after a power failure tet, so only the driver must preferably in Form of the free carriage moved into the open position until it is adjacent to the carriage again direction comes to lie. By the intended, preferred as a coupling formed in the form of the magnetic coupling direction is the carriage device carrying the door leaf device is automatically reconnected and at normal  Closing operation with the belt driven accordingly now coupled carriage device and thus the concerned door wing in the usual closed position get. Only in this latter case with "Capture" and "couple" the in its open position the energy accumulator is loaded. The charging process is in the open position when coupling completed. Then the energy storage, as in usual operation too, with the entire door leaf drive with proceedings.

It turns out to be particularly favorable with the fiction design principle that in the event of a power failure, So in emergency operation, none of the opening process such as disabling, significant friction are because the gear coupling and the belt guide in does not have to be moved in this case.

The invention based on an embodiment example explained in more detail. Show in detail

Figure 1 is a schematic front view of a closed, two-wing sliding door with schematically indicated carriage and drive device.

Fig. 2 is a representation corresponding to Figure 1 of the open sliding door in normal operation.

Fig. 3 is a representation corresponding to Figure 2 of the opened sliding door in case of emergency.

Fig. 4 is a schematic vertical cross-sectional view through a running rail with a mounted carriage;

Fig. 5 is a schematic excerpt Frontdar position of the suspension and driver device according to the invention using egg nes elastomeric, force train stressed;

Fig. 6 is a Fig. 5 corresponding representation of a modified embodiment using a gas pressure spring as an energy store.

In the exemplary embodiments shown in the figures, a door is shown with two door leaves 1 which can be displaced from its central closed position into its laterally open position. Each door leaf 1 is a carriage device 3 with two staggered in the longitudinal direction of Türflü gel 1 lying carriage 3 'and 3 ''held and guided Lich. The carriage device 3 with the two carriages 3 'and 3 ''are guided in a wall-mounted rail 5 . The running rail 5 has an upper and lower running surface which is convex in cross section to the running direction, on which running wheels 9 , 11 provided with correspondingly concave running surfaces run. From the drawings it is evident that each carriage 3 ', 3 ''between a pair of running wheels 9 ' running on the lower running surface 7 'comprises an intermediate, slightly vertically offset middle impeller 11 which is arranged on the upper running surface 7 ''Rolls. By means of a corresponding fastening and adjusting mechanism, these carriages can be inserted into the running rail from the side and can be guided in the running rail so that they cannot be guided by transverse adjustment and locking of the middle running wheel.

About the carriage thus formed and a coupling t-supporting profile 13 with in turn attached Tragtei len 15 , each of the two wings 1 on the concern the carriage device 3 in the longitudinal direction of the slide ne 5 is kept movable.

For the sake of clarity, the running track is only indicated globally in FIGS . 1 to 3.

The door leaf 1 shown in the drawings are, as is known per se, adjusted via a motor not shown in detail, usually an electric motor, with a downstream transmission, if any, and a preferably running drive and transmission means 17 between its closed and open positions . As to drive means 17 is used in the embodiment shown, two offset in the longitudinal direction of the sliding lying lying rollers 19 on a closed path umlau fend led drive belt.

In normal operation, the adjustment of the door leaf 1 is carried out by corresponding coupling of a door leaf in example with the lower run 17 '' and each other ren door leaf with the upper run 17 'of the drive means formed in the embodiment shown in the form of a circumferential belt 17 .

The corresponding adjustment movement takes place in the exemplary embodiment illustrated in 21 'formed Mitnehmereinrich device 21 the figures a a free form in the carriage. This free carriage 21 'corresponds to the principle of the zip structure explained the carriage 3 ' and 3 ''. In addition, for example, the assigned in Fig. 1 to 3 of the left door free carriage 21 lower than a position shown in Fig. 4 in cross-section mounting means 25 'with the upper run 17' and the other door leaf zugeord designated free carriage 21 'with the Trum 17 '' permanently and firmly coupled and connected.

Furthermore, between the free carriage 21 'and the ever assigned carriage device 3 , in the exemplary embodiment shown in each case between the adjacent lying carriage 3 ', a coupling device 27 is provided. In the exemplary embodiment shown, this is formed in the form of a magnetic coupling.

With this basic structure explained, the opening and closing operation of the automatic sliding door is carried out in the normal manner in normal operation. Ie in a motor-driven opening movement of the sliding doors from the closing shown in Fig. 1 in the opening movement shown in Fig. 2 is via the electric motor not shown in detail with the possibly downstream Ge drives the drive-type transmission means 17 formed in the manner of a belt driven, via which the left sliding door 1 'assigned Mitnehmereinrich device in the form of the free carriage 21 ' the coupled te left carriage device 3 and the door leaf 1 'carried over it to the left and the other strand 17 ''coupled driver device 21st the assigned carriage device 3 and thus the right door wing 1 '' is adjusted to the right open position. The end of the opening movement is electronically monitored and / or controlled by suitable and known measures. The closing movement takes place in reverse, with the counter-rotating movement of the drive transmission means 17 , ie the belt 17 , via the free carriage 21 ′ attached to it in each case. with the clutch device 27 always closed, the carriage device in question and thus the door leaves are returned to the closed position.

For emergency operation is now in the Ausfüh approximately example according to Figures i to 5 on the respective driver device 21 in the form of the free carriage 21 'a projecting in the direction of the respective carriage device 3 and with the free carriage 21 ' always provided with moving energy storage device 31 . This consists in this embodiment of a 'fixed carrier rail 33, at whose respective free to carriage 21' at the free carriage 21 opposite, ie, the outer end 35 is a deflection device 37 preferably in the form of a guide roller is provided. The Kraftspei cher 31 in this embodiment comprises an elastomeric element 39, preferably in the form of a cord or tape, which at one end is indirectly connected to the drive means 17 , ie, in the exemplary embodiment shown, to the driver device 21, preferably at the associated end of the mounting rail 33 at 34 attached and from there via the opposite deflection device 37 back to the carriage device 3 , preferably to the carriage 21 'adjacent carriage 3 ' guided and fastened there at 36 . In this embodiment, the support rail 33 is therefore parallel to the respective plane of the door leaf and thus also parallel to the running rail 5 .

In an emergency situation, for example in the event of a power failure, the mode of operation is such that the magnet of the magnetic coupling is automatically switched off in the coupling device 27 and the clutch 27 is thus automatically opened. Ie the carriage device 3 is uncoupled from the free carriage 21 '. As a result, the force of the energy accumulator 31 is immediately effective. With motionless held drive means 17 and stationary free carriage 21 'is now by the force of Kraftspei chers 31 in the form of the elastomeric element 39, the Laufwa gene device 3 and thus the door leaf 1 held above in the open position shown in Fig. 3 automatically adjusted table. Since such a storage device is assigned to each door leaf, the adjustment movement for each door leaf can be carried out independently of the other.

As described above, the force or tension accumulator formed from an elastic element 39 is attached and supported on its driver device 21 at its fastening and / or application point 36 ( FIG. 5). Such as 3, but is apparent from FIG. That the Mitneh can mereinrichtung 21 faces lying carriage 3 'in Rich processing of the entraining device 21 having a protruding support or extension rod 38 (Fig. 3) be provided at the then to the actual carriage 3' in the closing Stel lung offset the point of application 36 is provided for the elasto mere element 39 . This makes it easy to move the respective door wing in an emergency situation with the associated carriage 3 ', 3 ''to over the end of the mounting rail 33 with its deflection device 37 on one end of the mounting rail 33 out.

Even with an always provided electronic safety and monitoring device for monitoring the usual functions and for determining abnormal functions, for example, even if the belt breaks, this can be determined immediately by the electronics and, for example, the coupling device 27 in the sense of "opening" can be adjusted or switched off, which means that both door leaves can be automatically adjusted to the open position even if the belt is torn.

Would flow stand after a power failure is available again, 17 of the belt may, starting from the position and location of FIG. 3 by corresponding actuation of the drive means are actuated again, that when in Publ drying posture located door leaf 1, the-coupled entkop thereof, and in the Middle (per se in the closed position) be sensitive free carriage 21 'of the driver device 21 can be moved into the open position until they reach the carriage device 3 ' and 3 '' and couple them again by automatic actuation of the coupling device 27 . During this “catching and coupling” of the previously decoupled carriage device 3 , the energy store 31 is automatically reloaded, ie the elastomeric element 39 is tensioned again. Thereafter, the doors captured in this way can be automatically re-attached to their closed position or in their open position in normal operation, again solely by appropriate activation and rotating movement of the belt-like drive means 17 .

From the structure described it can also be seen that in normal operation the energy accumulator 31 is always moved with an adjustment of the doors in the closed as well as in the open position, so that the energy accumulator 31 in normal operation basically no new energy has to be supplied nor energy during the opening phase the door is removed in normal operation.

Deviating from the previously described Ausführungsbeispie len is only schematically shown in FIG. 6 for the left in Fig. 1 to 3 door leaf 1 'that the energy accumulator 31 can also have other energy storage elements. In this embodiment, instead of an elastomeric element 39, a spring acting on pressure, preferably a gas pressure spring 43, is used, which is located on the driver device 21 at 36 and on the other hand on the carriage device 3 , preferably on the carriage lying at the free carriage 21 ' 3 '' supports at 34 . Also in this embodiment, the force accumulator 31 thus formed will always drive along in normal operation. In the event of a power failure or by the electronics-controlled abnormal function with the clutch 27 open, the gas pressure spring 43 is effective to perform the opening movement. Only when catching the door wing for how to restore the normal function must the Mitnehmerein device 21 move against the force of the energy accumulator 31 with the energy accumulator loaded onto the door leaf in the open position until the clutch 27 is closed again.

Instead of the magnetic coupling explained, others can also positive and / or non-positive, also snap-like dome be provided. These can be found at for example with an integrated battery or with an integrated battery so effective that in the event a power outage thereby sufficient energy to Is available, for example, a form-fitting to open snap-like clutch.

Claims (12)

1. Automatic sliding door with at least one leaf ( 1 ', 1 '') which is operatively coupled to a drivable drive transmission means ( 17 ) which can be driven by a motor, and with a coupling device ( 27 ) and an auxiliary drive which in the event of an abnormal operation, in particular in the event of a power failure in the power supply, the clutch device ( 27 ) opens and the door opens automatically, characterized by the further features

• - The coupling device ( 27 ) is at least indirectly effective between the door leaf ( 1 ', 1 '') and the drive transmission means ( 17 ), and
• - The auxiliary drive is supported at least indirectly once on the associated door leaf ( 1 ', 1 '') on the one hand and on the other hand at least indirectly on the drive transmission means ( 17 ) and is in normal operation with the drive transmission means ( 17 ) and the assigned door leaf ( 1 ', 1 '') can also be moved.

2. Sliding door according to claim 1, characterized in that the coupling device ( 27 ) and the auxiliary drive drive transmission means-side on a fixed to the drive transmission means Mitnehmerein direction ( 21 ) is supported. 3. Sliding door according to claim 1 or 2, characterized in that the driver device ( 21 ) in the form of a free carriage ( 21 ') is formed. 4. Sliding door according to claim 3, characterized in that the door leaf ( 1 ', 1 '') carrying carriage device ( 3 ) and the free carriage ( 21 ') on a common rail ( 5 ) are movable. 5. Sliding door according to one of claims 1 to 4, characterized in that the coupling device ( 27 ) between the driver device ( 21 ) and the carriage device ( 3 ) is designed in the form of a magnetic coupling. 6. Sliding door according to one of claims 1 to 5, characterized in that the coupling device ( 27 ) is formed in the form of a positive coupling which can be actuated via an at least indirectly and preferably electrically actuatable trigger element. 7. Sliding door according to one of claims 1 to 6, characterized in that the coupling device ( 27 ) is formed in the form of a non-positive coupling which can be actuated via an at least indirectly and preferably electrically actuatable trigger element. 8. Sliding door according to one of claims 1 to 7, characterized in that after the opening movement of the at least one door leaf ( 1 ), the production of normal operation can be carried out in that the associated, preferably in the form of a free carriage ( 21 ') gebil Dete Driver device ( 21 ) can be moved by means of the drive transmission means ( 17 ) to the carriage device ( 3 ) located in the open position with the clutch ( 27 ) automatically closing. 9. Sliding door according to one of claims 1 to 8, characterized characterized in that the auxiliary drive from a power spit cher exists. 10. Sliding door according to one of claims 1 to 9, characterized in that the auxiliary drive consists of a compression spring, preferably gas pressure spring ( 43 ) which is supported and held on the carriage device ( 3 ) and the driver device ( 21 ). 11. Sliding door according to one of claims 1 to 10, characterized in that the auxiliary drive consists of an elastomeric element ( 39 ) which is stressed in train, and which at least once at its opposite ends averages at least on the carriage device ( 3 ) and other is braced or held on the driver device ( 21 ), the elastomeric element ( 39 ) between its anchoring points around a support arm projecting in the opening direction of an associated door leaf ( 1 ′, 1 ′ ′) around a deflection device ( 37 ) formed there is led around. 12. Sliding door according to one of claims 1 to 11, characterized in that the carriage device ( 3 ), ie at least one carriage ( 3 ', 3 '') with a longitudinal or direction of the rail ( 5 ) projecting support or Ver extension rod ( 38 ) is provided, in which then one of the two points of attack ( 36 ) for the auxiliary drive ( 39 , 43 ) is provided for the egg-like carriage ( 3 ', 3 '') in the closed position.