EP1436553B1 - Sliding door device - Google Patents

Abstract

The invention concerns a sliding door device ( 10 ) comprising at least a mobile sliding door ( 11 ) and separating elements ( 12 ) for maintaining and guiding the mobile and removable sliding door ( 11 ). The latter enables automatic opening and closure of an opening ( 20 ) based on a command. Therefor, the edges of the sliding door are at least partly enclosed with a frame part ( 14 ), an air curtain ( 24 ) being produced in front of the passageway ( 20 ) by means of a fan ( 16 ). The invention is characterized in that the sliding door comprises on its free vertical sides a frame part ( 14 ) provided with a housing wherein is arranged a fan ( 16 ). The outlet ( 17 ) of said fan leads to a longitudinal opening in the form of a nozzle producing the air curtain ( 24 ) and extending over practically the entire length of the vertical side ( 13 ) of the door. Additionally an inlet ( 18 ) of the fan ( 16 ) is provided in the frame part ( 14 ).

Description

The invention relates to a sliding door device comprising at least one movable sliding door and limiting parts for mounting and guidance the sliding sliding door, which depends on a controller automatically opens a wall passage and / or closes, this is the sliding door at its edges at least partially with a Surrounding the frame part, wherein by a fan through a longitudinal opening produced air curtain can be generated before the passage, and the Air curtain from almost the entire length of the vertical door side engaging opening of a frame part which flows at the free vertical side of the sliding door is arranged. Such facilities (See Patent Abstracts of Japan Vol. 011, no. 215 (M-606), July 11 1987 and JP 62033234 A (EBARA CORP; Others: 01), February 13, 1987) are widely known. They serve to close the door opening of the Passage of warehouses, shops, airports and the like. As soon as someone approaches, the door opens automatically. As soon as the person concerned the Door passes, then closes again. In a continuous operation, the door remains in its open position, so that only the air curtain a shield created the passage.

In such an embodiment, the air supply to the two takes place Sliding doors each have an elastic hose that is stretchable over the Sliding doors is arranged. The disadvantage is that every time you move stretchable hose is stretched or compressed. It turns out rapid wear, so that such controls have not been proven. In addition, through the long air duct up to the vertical opening at the door a large amount of air is needed to finally get the Air curtain to be able to form. In addition, the power consumption is too Production of the air curtain relatively large. Finally, such has Arrangement a pre-run as well as a long run-on of the blower, since the air pressure must first be built up and then dismantled. Such Arrangement has therefore not proven.

When opening the sliding door often cold fresh air in the the space behind it flows, it is endeavored, the door through a Air curtain device to close against train. At another Execution lies in the ground in front of the door an air curtain generating Device that shields the passage from bottom to top or vice versa. However, such devices have not enforced since from a user's side, the air flowing from below as unpleasant and is perceived as annoying. In addition, such Air curtains a high energy consumption or physically seen too little effect. The vote at the top of the Door is bad because of the high altitude. Next is a double doors Air curtain device proposed, the sideways in front of the door Air curtain should produce. The blower has an air intake as well an air jet, both lying on one side, so that the Air jet quickly mixed with the suction. Such a device is not effective.

The object of the invention is therefore to provide a sliding door device of the initially so called that they are easy to install, safe in their use and advantageously safe with the door open Shielding the passage of the door provides. In addition, the should Air curtain device has only a low energy consumption. These The object is achieved in that the frame part a Recording has, in which a blower is provided, and on a nozzle-like outlet opening generates the air curtain and that at the Back of the frame part provided a suction port of the blower is. Because of the sliding door on its free vertical side one Recording containing frame part, in which a fan provided is, the possibility arises, easily and easily air curtain in the area to create a passage. Even an afterthought Installation on the sliding door is possible because of the creation of the air curtain only the recording with the frame part and the blower are mounted on the vertical side of the sliding door got to. The power supply of the blower can easily in a pipe be installed above the door. Due to the fact that the outlet opening of the Blower extends along the vertical side, is used throughout Height range of the door creates an air curtain that blocks the passage shields. By attaching the inlet opening at a distance from Outlet opening, for example, at the back of the frame part is ensures that intake air and exhaust air do not mix with each other be while the entrance opening as desired by the one of the Doorway or from the other side of the passage can suck. Page Rather, each of the outlet air can flow freely, without a Intake to be obstructed. To produce the air curtain is only a frame part provided, which includes the blower. By the Air curtain is further ensured that ensures a shielding is and no cold air inside the door through the device closable passage arrives. Advantageously, the Intake opening provided on the inside of the sliding door, allowing only heated air on the inside of the door to shield the Air curtain is used. To make the veil as big and in To keep uniform density, it is recommended that the blower itself extends almost over the entire height of the door.

Advantageously, the passes through the nozzle-like opening Air curtain generated in a slightly to the direction of movement of the door extending angle away from the path of movement of the door.

This ensures that when occurring Air fluctuations on the passage of Abschirmluftschleier any in pointing away the passage of the door directed air streams.

In a particular embodiment of the invention that switches Blower at full door opening a higher power, so to speak opening passage width to take into account. In addition, it is Ensures that the power consumption of the air curtain device kept as low as possible. In a particular embodiment Two counter-rotating sliding doors are each equipped with a blower. By this measure, a large width of the passage through the Be shielded air curtain, beyond the shield is still better, as the veil is created practically from both sides of the passage becomes. It is favorable if the blower as tangential or Cross-flow fan is formed, since it has been shown that such Blower quickly generate appropriate pressure in an air curtain can run quietly and have low energy consumption.

In a particular embodiment of the invention, the rotor is of the tangential fan in the receptacle has a diameter <= 90 mm, especially 45mm. Such an arrangement allows on the free side of Door a narrow formation of the frame, allowing such Tangential fans or tangential blowers with door and frame light can be installed. It is recommended that the recording of the Frame part of the free vertical side of the sliding door with on and off Outlet opening has a size which is about twice the Diameter of the rotor of the tangential blower corresponds. With a Such training gives the advantage that the blower, although it The free side of the door is optically not materially apparent. This size will further ensure that the door is visually seen has an overall impression that does not look clunky. In addition, occurs this narrow frame part visually yet so far in appearance that at Non-opening the door no person is running against the glass door. Next allowed Such a design that, despite the small diameter of the Mounting with inlet and outlet openings installed in the door frame part can be. The advantage of tangential fans with such rotors, which are designed in diameter, ensures that no large Mass movements occur when the rotor is running. In addition, are such rotors quietly in operation. Vibrations do not occur. The further Advantage of such rotors is that at a door height of 2m and more of the tangential fan just from a single rotor in the Recording exists. This in turn results in a cost-effective Production as well as easy assembly. At a special Embodiment has at a door height of about 2 m, the engine of the Tangential fan on both sides of a rotor section on. By this measure you get in the middle of the door a safe Mount, while the rotor sections without heavy loads the air can carry. Hardly any is created in the rotor sections themselves Twist in the rotor sections. It is a uniform Air promotion. Finally, the rotor sections can be in diameter be made smaller, since no more loads occur.

It has been shown that favorably the angle of attack of the air angle with respect to the line formed by the closed door is 7 °. Here, the air flow away from the door, so through this To show when the door is open, a safe protection against intrusion of air, in particular cold air in the space closed by the door given is. Such a flow of air blowing in front of the door allows about it In addition, a secure seal, so that from the outside in case of sudden No impurities can come through the door.

In a particular embodiment of the invention, the off the outlet opening passing air flow at a speed of at least 2m per second. At such a speed is one secure sealing with the door open. In addition, will Ensure that no foreign air in the door closed Space can enter.

In a further embodiment of the invention, at least the the free sliding door side lying vertical frame part for the fan foamed metal is constructed. This measure allows a safe Sound insulation of the blower, in addition, such frame parts only a low weight, so that a load on the sliding doors barely occurs. Finally, the foamed metal also allows a corresponding Insulation with the door closed, as the individual air bubbles possible cold do not let it penetrate through the posts. Finally, that can be Secure the frame part securely to the free vertical side of the sliding door.

In another marking of the invention carries on the free vertical Door side lying frame part in its preferably lower area a Sensor for monitoring the passage. In that, immediately before the door is a sensor, any objects can be easily detected, to prevent the sliding doors that open automatically and close, bump against these objects. In addition, allowed a further embodiment of the sensor, for example from a warehouse, not yet released goods still with a safety device are afflicted to recognize the doorway, then what a corresponding alarm triggers. Any devices that, as previously in To monitor the doorway, are no longer necessary because now the door itself can monitor. Advantageously, a for the door opening serving the sensor of the frame part of a sliding door directed to the outside of the passage, while the sensor of the Frame part of the other sliding door to the inside of the passage is directed, as in this way by the detection angle of the sensor scanned both sides of the door. It is advantageous here that the Sensor can also fit smaller items on the floor. Thereby, that the sensor is fixed, is an adjustment of the Rotation angle range not possible because the door is the corresponding room can scan itself. It is therefore over the known designs easy handling possible, especially arrangement that is practical for an outsider is not recognizable. It's an advantage, if the power supply from the blower and / or the sensor for the Zugseilanordnung to move each sliding door takes place. These Arrangement allowed without additional measures, such as arrangement of Line cables, alone when installing the door over its Moving ropes safely perform the power supply, so that the Installation of such doors, even if they are retrofitted, is particularly easy.

In a particular advantageous embodiment, the frame part with the fan intake on the free vertical door side on the side surface arranged the door. This measure allows a secure attachment because the area for mounting the door blower with a larger section of the glass door is fixable.

The arrangement also further allows that practically only still a sliding door must be made, there for both against sliding doors only a single door required is. This also applies to the arrangement of the sensor. The one sensor is touching the outside area and the other sensor the interior of the passage from.

In a particular embodiment of the invention, for example, if the Schiebetüreinrichtung is adjustable for winter operation, is the Opening width of the passage through the sliding door is reduced and the Fan switched to a lower fan speed, such as to avoid unnecessary costs. In addition, it is sufficient, if only must be open to a certain width of the passage. Of the Air curtain can then safely pass, as far as the passage open is close with.

It is advantageous if the Ausblasausrichtung the nozzle-like Outlet slit adjustable adjustable so as to date a giveaway to make optimal adjustment of the door. For example a greater pressure difference between the two sides of the Throughout, the exit slot can add a strong angular amount be pivoted to prevent the passage of air through the door.

Fig. 1a

ein Doppelschiebetür in geschlossenem Zustand,

Fig. 1

b eine Doppelschiebetür im geöffnetem Zustand,

Fig. 2

in größerem Maßstab in Draufsicht die freie Seite einer Schiebetür,

Fig. 3

in Vorderansicht die Schiebetür im Bereich der freien Seite,

Fig. 4

die Rückansicht der Schiebetür,

Fig. 5

im größeren Maßstab der Austrittsschlitz mit Düsenöffnung.

In the drawing, the subject invention is shown in several embodiments, namely show:

Fig. 1a

a double sliding door in closed condition,

Fig. 1

b a double sliding door in the open state,

Fig. 2

on a larger scale in plan view the free side of a sliding door,

Fig. 3

in front view the sliding door in the area of the free side,

Fig. 4

the rear view of the sliding door,

Fig. 5

on a larger scale, the exit slot with nozzle opening.

The sliding door device 10 according to the invention comprises two sliding doors 11, which are movable in opposite directions. They are automatically over one Control device in its open state and its closed state can be transferred by a sensor, not shown. The two sliding doors close a passage 20, which is the space inside from outside separates. The two sliding doors are guided on a boundary part 12 and fixed. This limiting part also comprises the device for Movement of the sliding doors. A sliding door 11 has at its edges Fill up. On the free vertical side 13 of the sliding door is a Provided frame member 14, in this case, the frame member 14 surrounds the glass existing sliding door on the one hand, on the other hand it forms with the opposite sliding door an impact surface. The frame part is off built up a lightweight material.

Both frame parts 14 have a receptacle 15 in which a fan 16 is arranged, which consists of a Tangialventilator. The recording of the Blower is associated with an outlet opening 17 and a Inlet opening 18 with a larger cross section. The outlet is slotted, possibly with interruptions. Both openings extend over the entire height of the door. The outlet opening can be nozzle-like be designed, if necessary, a nozzle 22 may be used. The Entry side is covered by a grid 19.

The sliding door 11 closes a passage 20, this is at the Inside 21 of the passage, the inlet opening of the blower 16 intended.

The airflow curtain generated by the outlet opening 17 moves at the embodiment shown by an angle 26 to Trajectory 25 of the door, which is indicated schematically. It is here mentions that with activated door both blowers with a drive low power, even if the door is closed, so the Seal any gaps at the joint of the two frame parts.

The frame part, which is shown in Fig. 2 in a larger view, consists made of a lightweight material, such as foamed metal.

It should be mentioned here that a sensor 23 on the frame parts 14th is provided. This covers the passage 20 on the one hand to any To be able to determine objects that a closing movement of the door on the other hand to persons from the inside come to palpate whether to take these goods, the one more Carrying anti-theft device, for example, then such a sensor provided when the door means for shielding a Sales store passage serves.

From Fig. 3, the front of the door, so the outside can be seen. Out This illustration shows that the intake with the blower motor extends almost over the entire height.

In Fig. 4, the back of the door according to arrow IV is shown. At the Inside is the sensor 23, also the cover grid 19 of the Entrittsöffnung 18 of the blower.

From Fig. 5 it can be seen that the outlet opening 17 through a nozzle 22nd is closable. Through this nozzle, the airflow curtain can be slightly in be changed in his direction.

Finally, it should be mentioned that the invention only in their essential parts, so as to give an explanation can. The concrete control as well as sampling as well as the Movement device control is not shown.

As already mentioned, the illustrated embodiments are only for example, realizations. The invention is not limited thereto. Rather, many modifications and applications are possible. For example, the frame part could be smaller compared to the representation be formed so as to visually a larger view through to allow the sliding door. It is only important that the frame part on the one hand holds the doors, picks up the blower as well as one entry and one entrance Having outlet opening, which advantageously over the entire Height of the door to extend, so a proper curtain in front of the Door passage to create. It remains to be added that the whole door can be surrounded with frame strips, with the exception of the free vertical Side on which the frame part for the blower is provided. Next is argued that the tangential fan is a rotor with a motor comprising, overall, a length corresponding to the door height. Of the Diameter of the rotor is 80 mm or less, so the recording of the door frame part is made relatively narrow. The discharge angle of the Air flow is 7 ° away from the door with the door closed. Of the Air flow of the rotor has an exit velocity of at least 2m per second. The terms tangential fan, tangential fan as well Cross-flow fan each mean the same fan. Of the Tangential fan can be designed to center a motor has, to which on both sides of the rotary motors are arranged, the to carry out the air transport.

LIST OF REFERENCE NUMBERS

10

door means

11

sliding door

12

limiting member

13

free vertical side the sliding door

14

frame part

15

Recording in 14

16

Blower in 15

17

Outlet opening of 16

18

Entrance opening of 16

19

Grid of 18

20

Passage for 10

21

Inside of 10

22

Nozzle in 17

23

sensor

24

Airflow veil

25

Moving door of 11

26

Angle of airflow to movement direction

Claims (20)

1. Sliding door device (10) comprising at least one movable sliding door (11) and boundary parts (12) to hold and guide the movable, sliding door (11), which automatically open and/or close a doorway (20) under the direction of a control unit, where at least certain edges of the sliding door (11) are enclosed by a frame part (14); where a blower is able to produce an air curtain (24), which emerges through a longitudinal opening and passes in front of the doorway (20); and where the air curtain flows from an opening (17) in a frame part (14), which opening extends over nearly the entire length of the vertical edge of the door, the frame part being mounted on the exposed vertical edge (13) of the sliding door (11),
      characterized in that the frame part (14) has a receptacle (15), in which a blower (16) which produces the air curtain (24) is installed, the curtain being discharged through a nozzle-like outlet (17), and in that an intake (18) for the blower (16) is provided in the frame part (14).
2. Sliding door device according to Claim 1, characterized in that the intake (18) is provided on the inside surface (21) of the sliding door.
3. Sliding door device according to Claim 1 or Claim 2, characterized in that the blower (16) extends over nearly the entire height of the door (11).
4. Sliding door device according to Claim 1 or Claim 3, characterized in that the air curtain (24) produced by the nozzle-like outlet (17) extends at a slight angle (26) to the direction (25) in which the door moves, the air current of the curtain being directed away from the path (25) along which the sliding door (11) moves.
5. Sliding door device according to one of Claims 1-4, characterized in that the blower (16) switches to a higher power setting when the door opens.
6. Sliding door device according to one of Claims 1-4, characterized in that each of two sliding doors (11), which move in opposite directions, is equipped with a blower (16).
7. Sliding door device according to one of Claims 1-6, characterized in that the blower (16) is designed as a tangential or transverse-flow ventilator.
8. Sliding door device according to one of Claims 1-7, characterized in that the rotor of the tangential ventilator (16) in the receptacle (15) has diameter of ≤ 90mm, and preferably of 45 mm.
9. Sliding door device according to one of Claims 1-8, characterized in that the receptacle (15) in the frame part (14), including its inlet and outlet (17, 18), has a size which is approximately twice the diameter of the rotor of the tangential blower (16).
10. Sliding door device according to one of Claims 1-9, characterized in that, for a door with a height of 2 m, the tangential ventilator has a single rotor in the receptacle (15).
11. Sliding door device according to one of Claims 1 - 10, characterized in that, for a door with a height of approximately 2 in, the motor of the tangential ventilator has a section of rotor extending out from each side.
12. Sliding door device according to one of Claims 1-11, characterized in that the discharge angle of the air stream with respect to the line formed by the closed door (11) is 7°, the air stream being directed away from the door (11).
13. Sliding door device according to one of Claims 1-12, characterized in that the air stream has a velocity of at least 2 m per second as it emerges from the outlet (17).
14. Sliding door device, especially according to one of Claims 1-13, characterized in that at least the vertical frame part (14) for the blower (16) on the exposed, edge (13) of the sliding door is made of foamed metal.
15. , Sliding door device, especially according to one of Claims 1-14, characterized in that the frame part (14) on the exposed vertical edge (13) of the door, preferably the bottom area of the frame part, carries a sensor (23) to monitor the doorway (20).
16. Sliding door device according to Claim 15, characterized in that a sensor (23) is provided on the frame part (14) of a sliding door (11) to scan the doorway, this sensor being directed toward the outside of the doorway (20), whereas the sensor (23) on the frame part of the other sliding door (11) is directed toward the inside (21) of the doorway (20).
17. Sliding door device according-to one of Claims 1-16, characterized in that power is supplied, to the blower (15) and/or to the sensor (23) via the tension cable used to move each of the sliding doors.
18. Sliding door device according to one of Claims 1-17, characterized in that the frame part (14) with the blower receptacle (15) is attached to the lateral surface (11) of the door, near the exposed vertical edge (13) of the door.
19. Sliding door device according to one of Claims 1-18, characterized in that the blower (16) can be switched to a lower power setting when the adjustable sliding door (11) is programmed to reduce the extent to which it opens the doorway (20).
20. Sliding door device according to one of Claims 1-19, characterized in that the discharge direction of the nozzle-like outlet slot (17) is adjustable.

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