EP2108775B1 - Automatic door system - Google Patents

Description

The invention relates to an automatic door system according to the preamble of claim 1. From the US 5 012 455 is a door system according to the preamble of claim 1 is known. From the DE 38 15 195 A1 is an automatic, designed as a revolving door system door system with a plurality of pivotable about a central axis of rotation door wings known which are driven by a drive means. A control device serves to control the drive device. There are at least two sensors present, which are provided for detecting obstacles in different, at least partially non-overlapping areas of the door system. One sensor group is used to detect obstacles in the movement range of the door leaves, and a further sensor group is provided for detecting obstacles in the region of a closing edge of the door system. The control device is designed so that upon detection of an obstacle, a security reaction of the door system takes place.

A test of the sensors does not take place, i. In the event of unrecognized failure of one or more of the sensors, dangerous situations may occur, as obstacles at the closing edge and / or in the movement range of the door leaves are no longer detected.

The invention has for its object to provide a door system, the reliability is increased over the prior art.

The object is solved by the features of patent claim 1.

The subclaims form advantageous embodiments of the invention.

The control device of the door system is designed so that the functionality of the sensors is checked in regular test cycles by the control device generates test signals for the sensors, wherein the test cycle for at least one, a specific area of the door system associated sensor of the test cycle for at least one other, deviates at least partially different area of the door system associated sensor.

Since sensors are at least temporarily inactive during their testing, this still ensures optimum safety.

The control device may have at least two outputs for the different sensor test signals. Thus, each sensor or each sensor group an individual test signal can be assigned. The different test cycles of the individual sensors are each tuned to the movement of the door system. The test cycles of the individual sensors correspond to specific time periods. The door system is designed as a carrousel door system. In the revolving door system, for example, the sensor detecting the main closing edge can always be tested when the next door leaf approaching the drum wall is still far enough away from the main closing edge of the drum wall, advantageously directly after the edge of the leading door leaf has passed, so that even at the presence of an obstacle in this area at this time no immediate reaction of the drive device must be made. Thus, per 360 ° - rotation of the door in principle a maximum of the number of revolving doors corresponding number of tests of this sensor is possible.

By contrast, for the area of movement of the revolving door, the sensor detects other "favorable" moments during which this sensor may briefly be inactive during its testing, for example when the exit area of the revolving door opens and the user of the revolving door can leave it quickly through the exit area.

In the following an embodiment in the drawing with reference to the figures will be explained in more detail.

Fig. 1

eine Frontansicht einer erfindungsgemäßen, automatischen Türanlage;

Fig. 2

eine schematische Darstellung der Türanlage gemäß Fig. 1 in Frontansicht;

Fig. 3

eine schematische Darstellung der Türanlage gemäß Fig. 1 in Draufsicht in einem ersten Betriebszustand;

Fig. 4

die Türanlage gemäß Fig. 3 in einem zweiten Betriebszustand;

Fig. 5

die Türanlage gemäß Fig. 3 in einem dritten Betriebszustand;

Fig. 6

die Türanlage gemäß Fig. 3 in einem vierten Betriebszustand;

Fig. 7

die Türanlage gemäß Fig. 3 in einem fünften Betriebszustand.

Showing:

Fig. 1

a front view of an automatic door system according to the invention;

Fig. 2

a schematic representation of the door system according to Fig. 1 in front view;

Fig. 3

a schematic representation of the door system according to Fig. 1 in plan view in a first operating state;

Fig. 4

the door system according to Fig. 3 in a second operating state;

Fig. 5

the door system according to Fig. 3 in a third operating condition;

Fig. 6

the door system according to Fig. 3 in a fourth operating condition;

Fig. 7

the door system according to Fig. 3 in a fifth operating state.

In the Figures 1 and 2 an automatic, designed as a revolving door system door system 1 is shown, which has a plurality of rotatable about a common axis of rotation 3, designed as a revolving door leaf wings 2a, 2b, 2c, 2d. Above the door leaves 2a, 2b, 2c, 2d, a drive device 8 is arranged, which drives the door leaves 2a, 2b, 2c, 2d. The bearing of the axis of rotation takes place in an upper pivot bearing 4, which is arranged in the region of a receiving space 9 of the drive means 8, as well as in a lower, embedded in the ground pivot bearing 5. In this view, the two rear doors 2c, 2d through the two front Door leaf 2a, 2b hidden. The outer boundary of the door system 1 is formed by two cylinder-segment-shaped drum walls 6a, 6b, between which an input / output area A of the door system 1 is arranged. Another input / output area C is hidden in this view by the door leaves 2a, 2b, 2c, 2d.

The drive device 8 of the door system 1 comprises a drive motor 10, which may have a downstream (not shown here) reduction gear. On the output shaft, a pulley 11 is rotatably disposed, which via a drive belt 12 rotatably connected to the rotation axis 3 of the door leaf 2a, 2b, 2c, 2d connected pulley 13 drives. Alternatively, however, other known per se embodiments of the drive device 8 are possible. The control of the drive device 8 via a control device 14th

The door leaves 2 a, 2 b, 2 c, 2 d of the door system 1 of the illustrated embodiment are driven counterclockwise (in plan view), so that the left in the drawing 2 a door leaf moves to the right in the drawing drum wall 6 b and thus at this one Main closing edge 7a of the door system 1 is located. Another main closing edge 7b of the door system 1 is (hidden in this view) at the rear end edge of the left drum wall 6a.

A sensor 15a, 15b, 15c, 15d is arranged at the upper secondary closing edge of each door leaf 2a, 2b, 2c, 2d, the monitoring area 16a, 16b, 16c, 16d of which each covers an area in front of the door leaf 2a, 2b, 2c, 2d. so that an obstacle located in the movement range of a door leaf 2a, 2b, 2c, 2d, for example a person walking slowly or standing still, is detected, a sensor signal indicating this situation is transmitted to the control device 14 and, triggered by the control device 14, a corresponding one Reaction of the drive device 8 takes place by braking or stopping the door leaves 2a, 2b, 2c, 2d before they encounter the obstacle. At the lower secondary closing edge of each door leaf 2a, 2b, 2c, 2d, in each case a further sensor (not shown here), which detects the movement range of the door leaf 2a, 2b, 2c, 2d, can be arranged.

In the area of the main closing edges 7a, 7b, a sensor 17a, 17b which respectively detects this area is arranged, in the illustrated exemplary embodiment stationary in the area of the drive device 8 above the input-output area A, C, so that an obstacle reaching this area is detected, this one Situation indicating sensor signal is transmitted to the control device 14 and before the approach of one of the door leaf 2a, 2b, 2c, 2d to one of the main closing edge 7a, 7b of the drum wall 6a, 6b, triggered by the control device 14, a corresponding reaction of the drive device 8 takes place, by braking or stopping the leaves 2a, 2b, 2c, 2d before hitting the obstacle. As an alternative or in addition, the sensor 17a, 17b which detects the main closing edge can also be arranged on the door leaf 2a, 2b, 2c, 2d in the outer edge area of the same.

In the Fig. 3 to 7 several operating states of the door system 1 are each shown schematically in plan view. The door leaves 2a, 2b, 2c, 2d are driven counterclockwise, ie in the direction of rotation E. Between the drum walls 6a, 6b and the two the input / output areas A, C are the two passage areas B, D, which during the rotation of the door leaves 2a, 2b, 2c, 2d by the user of the door system 1 and passed through the door leaves 2a , 2b, 2c, 2d are run over. The demarcations between the input / output areas A, C and the passage areas B, D shown in the figure are purely fictitious and serve merely to explain the operating states of the door system 1.

The monitoring areas 16a, 16b, 16c, 16d, 18a, 18b of the sensors 15a, 15b, 15c, 15d, 17a, 17b are each grayed out to represent an active sensor and a sensor inactive due to sensor testing is shown in white.

In the operating state according to Fig. 3 two opposite door leaves 2a, 2c are in a position such that the entry / exit areas A, C for entry of a person into the entry / exit areas A, C of the door system 1 are each still open to about 2/3. A person already in the passage areas B, D of the revolving door system can still use the door system 1 not leave through the input / output areas A, C, since the released by the door 2a, 2c opening of the input / output areas A, C is not large enough. All sensors 15a, 15b, 15c, 15d, 17a, 17b of the door system 1 are active in this operating state, ie upon detection of an obstacle by at least one of the sensors 15a, 15b, 15c, 15d, 17a, 17b, a safety reaction of the door system 1 can immediately take place respectively.

In the in Fig. 4 shown operating state, the door leaves 2a, 2b, 2c, 2d have moved by about 20 ° in the direction of rotation E, so that the two opposite door leaves 2a, 2c are each about in the middle of the two input / output areas A, C. A person located in the passage areas B, D of the door system 1 can now leave the door system 1 through the sufficiently large opening of the input / output areas A, C. The sensors 15b, 15d of the two opposite, located between the drum walls 6a, 6b in the passage areas B, D door wings 2b, 2d are now temporarily deactivated in this operating state for testing. This position of the door wings 2b, 2d is suitable for testing the sensors 15b, 15d, since a person located in the passage areas B, D of the door system 1 now leaves the door system 1, ie can move out of the door system 1 relatively quickly, so that At this time, the risk of casserole of the trailing by the passage area door 2 b, 2 d is the lowest on the person. During the examination of these sensors 15b, 15d, the associated door leaves 2b, 2d only move by a few angular degrees in the direction of rotation E.

In the in Fig. 5 shown operating state is the above-described test of the sensors 15b, 15d thus terminated, so that these sensors 15b, 15d are now active again.

In the in Fig. 6 shown operating state, the two opposite door leaves 2a, 2c, which have passed through the input / output area A, C, with their main closing edge, the main closing edges 7a, 7b of the drum walls 6a, 6b achieved. Since the main closing edges 7a, 7b monitoring sensors 17a, 17b now anyway have to be hidden for a short time to a To prevent false triggering by the approaching door 2 a, 2 c, this time is suitable for testing and thus for short-term deactivation of these sensors 17 a, 17 b. During the examination of these sensors 17b, 17d, the door leaves 2a, 2b, 2c, 2d move only by a few angular degrees in the direction of rotation E.

In the in Fig. 7 shown operating state of the previously described test of the sensors 17a, 17b thus terminated, so that these sensors 17a, 17b are now active again.

Proceeding from this, the door leaves 2a, 2b, 2c, 2d finally reach a vertex degree after a further rotation Fig. 3 corresponding, but rotated by 90 ° in the counterclockwise direction (not shown here) position. Subsequently, an examination of the previously unchecked sensors 15a, 15c (corresponding to Fig. 4 ) and then again the main closing edges 7a, 7b associated sensors 17a, 17b (corresponding to Fig. 6 ).

For each complete 360 ° rotation of the door leaves 2a, 2b, 2c, 2d, the sensors 15a, 15b, 15c, 15d assigned to the range of movement of the door leaves 2a, 2b, 2c, 2d can thus be two times and the main closing edges 7a, 7b respectively in this embodiment assigned sensors 17a, 17b are even checked four times each.

Of course, the test cycles may differ from this embodiment, i. be longer or shorter. For example, a check of the movement range of the door wings 2a, 2b, 2c, 2d associated sensors 15a, 15b, 15c, 15d after a certain number of revolutions of the door leaf 2a, 2b, 2c, 2d and a test of the main closing edges 7a, 7b associated sensors 17a, 17b made after a certain time has elapsed.

The sensors 15a, 15b, 15c, 15d, 17a, 17b of the embodiment described above can advantageously be designed as motion and / or presence detectors (in particular infrared or ultrasound).

Deviating from the illustrated embodiment, the sensors may alternatively or additionally be based on other functional principles, for example as light barriers, safety edges, pressure wave switches or capacitive sensors.

List of reference characters

1

door system

2a

door

2 B

door

2c

door

2d

door

3

axis of rotation

4

pivot bearing

5

pivot bearing

6a

drum wall

6b

drum wall

7a

closing edge

7b

closing edge

8th

driving means

9

accommodation space

10

drive motor

11

pulley

12

belts

13

pulley

14

control device

15a

sensor

15b

sensor

15c

sensor

15d

sensor

16a

monitoring area

16b

monitoring area

16c

monitoring area

16d

monitoring area

17a

sensor

17b

sensor

18a

monitoring area

18b

monitoring area

A

Input / output area

B

Passage area

C

Input / output area

D

Passage area

e

direction of rotation

Claims (3)

1. Automatic door system (1)
   having at least two movable door leaves (2a, 2b, 2c, 2d),
   having a drive device (8) for driving the door leaves (2a, 2b, 2c, 2d),
   having a control device (14) for controlling the drive device (8), and
   having at least two sensors (15a, 15b, 15c, 15d, 17a, 17b), which are provided to detect obstacles in different regions of the door system (1) at least partly not overlapping one another,
   the control device (14) being designed such that when an obstacle is detected, a safety reaction of the door system (1) is carried out,
   the door system (1) being designed as a carousel door system,
   the control device (14) being designed such that the serviceability of the sensors (15a, 15b, 15c, 15d, 17a, 17b) is checked in regular test cycles, by the control device (14) generating test signals for the sensors (15a, 15b, 15c, 15d, 17a, 17b), the test cycle for at least one first sensor (15a, 15b, 15c, 15d) assigned to a specific area of the door system (1) differing from the test cycle for at least one further, second sensor (17a, 17b) assigned to an at least partly different area of the door system (1),
   the different test cycles of the individual sensors (15a, 15b, 15c, 15d, 17a, 17b) each being matched to the movement sequence of the door system (1),
   characterized in that the test cycles of the first and second sensors (15a, 15b, 15c, 15d, 17a, 17b) correspond to specific time periods,
   wherein the at least one first sensor (15a, 15b, 15c, 15d) is provided to detect obstacles in the movement area of the door leaves (2a, 2b, 2c, 2d), and
   wherein the at least one second sensor (17a, 17b) is provided to detect obstacles in the area of a closing edge (7a, 7b) of the door system.
2. Automatic door system according to Claim 1, characterized in that the control device (14) has at least two outputs for separate test signals for the sensors (15a, 15b, 15c, 15d, 17a, 17b).
3. Automatic door system according to Claim 1 or 2, characterized in that the test cycles of the individual sensors (15a, 15b, 15c, 15d, 17a, 17b) are determined from the speed of movement of the at least one door leaf (2a, 2b, 2c, 2d) of the door system (1).

Images