ES2445587T3 - Automatic sliding door installation - Google Patents

Abstract

Operating procedure of an automatic sliding door installation (1) with at least one sliding leaf (2) that is operable by means of a drive device (4) activated by an electronic control device, in which the sliding door installation ( 1) can be used in an escape and rescue path, for which purpose the drive device (4) is configured so that the sliding leaf (2) opens fully after activation of the control device, and in which monitors a monitoring zone (6) by a sensor device (6) which, when opening the sliding leaf (2), is squeezed by a vertical secondary closing edge of the sliding leaf (2), for which purpose the sensor device (5 ), in the presence of an obstacle in this surveillance zone (6), it sends to the control device an indicative signal of this state, with which the sliding leaf (2), after going through the acceleration phase (s1) and a phase from altaveloci shortened (s4), it is braked in a braking phase (s5) to a lower low speed (v1), characterized in that the braking phase (s5) follows the high speed phase (s4) rather than in the speed course (7) of the movement or obstacles, but in such a way that the acceleration phase (s1), the shortened high speed phase (s4) and the braking phase (s5) are sized so that an opening width is reached minimum preset (x1) within a maximum preset time.

Description

Installation of automatic sliding door.

The invention concerns a method of operating an automatic sliding door installation according to the preamble of claim 1.

Document DE 32 02 784 A1 is known as an automatic sliding door installation with at least one sliding leaf that can be operated by a drive device. The sliding door installation can in principle be used in an escape and rescue path, for which purpose the drive device is designed so that the sliding leaf is fully opened after activation of the control device. A surveillance zone is monitored with a sensor device which, when opening the sliding leaf, is exceeded by a vertical secondary closing edge of the sliding leaf, for which purpose the sensor device, in the presence of an obstacle in this surveillance zone , sends a signal indicative of this state to the control device. The opening movement is braked immediately.

Document DE 39 40 762 A1 is known as another automatic sliding door installation, also usable in an escape and rescue path, with at least one sliding leaf operable by a drive device. The drive device is activated by an electronic control device.

In such sliding door installations it is usual for the sliding blade to be driven with high speed after an acceleration phase in a high speed phase. This opening movement with high speed is particularly necessary in case of an emergency, since the drive device has to be designed so that the sliding blade opens as quickly as possible and completely after activation of the control device with an emergency case signal or when the mains power supply fails. The sliding sheet must reach a minimum opening width required in accordance with current national regulations, possibly within a pre-set maximum time. However, even in normal operation a rapid opening of the sliding leaf is desired to quickly enable the passage through the installation of automatic sliding door for an approaching person.

Certainly, rapid opening of the sliding leaf is achieved in the event of an emergency, but this operating procedure also involves new risks. Due to the rapid and uncontrolled opening movement of the sliding leaf, there is a risk that the secondary closing edge of the sliding leaf that moves with high speed will be captured and eventually also coined, that is to say it has high energy kinetics, especially when a fixed blade that borders the wall is present parallel to the sliding sheet.

The usual protection measures for this are protection sheets that, together with the fixed blade, form a cavity in which the sliding blade enters during its opening movement. In this kind of protection, the fact that the interior surfaces of the fixed sheet and the protection sheet are not accessible (for example, for cleaning purposes) is disadvantageous, so that additional costly measures are necessary to temporarily remove the sheet from protection.

Alternatively, the width of the sliding sheet can be chosen smaller than the width of the corresponding fixed sheet so that, when the sliding sheet is open, a predetermined distance (for example, 20 cm) remains between the secondary closing edge of said sliding blade and adjacent wall. In this kind of protection, the fact that, due to the smaller width of the sliding sheet, only a correspondingly narrower passage area can be realized is disadvantageous. In addition, this measure of protection against wedging does not prevent the secondary closing edge of the sliding blade that moves with high speed, that is to say that it has a high kinetic energy, collides with obstacles.

The invention is based on the problem of creating an operating procedure of an automatic sliding door installation that ensures reliable protection of the secondary closing edge of a sliding leaf.

This problem is solved with the features of claim 1.

The subordinate claim forms an advantageous embodiment of the invention.

The sliding blade, in the presence of an obstacle, is braked after a shortened high speed phase to a smaller speed in a braking phase that is added to the high speed phase rather than under the course of speed evolution of movement without obstacles.

Thanks to this measure, reliable protection of the secondary closing edge of the sliding leaf is ensured. In this case, the acceleration phase, the shortened high-speed phase and the braking phase are dimensioned so that the minimum opening width required is reached within the predetermined maximum time so that the sliding blade is guaranteed to reach a width of minimum opening required in accordance with regulations

national current, eventually within a pre-set maximum time.

Subsequent movement with lower speed ensures that the sliding blade can reach its full open position, which, due to the small kinetic energy of the sliding blade, results in a hazard that is no longer as large as in the case of a fast movement.

In order to be able to reduce this danger even further, it can be foreseen even for this phase of movement with less speed - in case this is allowed by the current national regulations - an additional protection, for example by measuring the speed of the blade or the motor current, so that a wedge of an obstacle during this phase of movement leads to disconnection of the drive device. Since the minimum opening width required for the escape and rescue route has already been reached or exceeded in this phase of movement, it is necessary that, despite the stoppage of the sliding leaf, the escape function and Rescue of the sliding door installation.

In the following, an exemplary embodiment is explained in more detail with the aid of the figures in the drawing. They show in this one:

Figure 1, an automatic sliding door installation in front elevation; Y

Figure 2, a course of speed evolution as a function of the path when opening the sliding leaf in an emergency operating state.

Figure 1 shows an automatic sliding door installation 1 with two sliding leaves 2 and two fixed panels

3. The sliding blades 2 are operable by a drive device 4 arranged on the sliding blades 2 and the fixed panels 3 and activated, for example, by a sensor that detects an approaching person. The sliding sheets 2 have approximately the same width as the adjacent fixed panels

3.

The sliding door installation 1 is suitable for use in an escape and rescue path, for which purpose the drive device 4 is configured so that the sliding blades 2 can be fully opened after activation of the control device with an emergency case signal that can be generated, for example, by a smoke or fire alarm or by a manually maneuverable emergency button, the sliding leaves 2 reaching a minimum required opening width (for example, 80% of full opening width) within a preset maximum time (for example, 3 seconds).

Figure 2 shows the speed V of the sliding sheets 2 as a function of their opening width X for their opening movement in the case of an emergency opening of the sliding door installation 1. The closed position of the sliding sheets 2 is designated with the opening width X0 and the full open position of the sliding blades 2 is indicated with the opening width X2. The minimum opening width of the sliding sheets 2, which in the embodiment example amounts to 80% of the full opening width X2, has been designated with X1. The maximum speed of the sliding blades 2 is indicated with v2.

In the event that no obstacle is found in the surveillance zone of the sensor device 5 that monitors the secondary closing edges of the sliding blades 2, these sliding blades 2 travel the designated speed course with the reference symbol 7, that is to say that in the acceleration phase s1 the sliding blades 2 are accelerated from the stopped state to the high speed v2, which they retain in the high speed phase s2. A braking phase s3 follows in which the sliding blades 2 are braked from their maximum speed v2 to the stopped state and have then reached the maximum opening width X2. This ensures that the sliding doors 2 are opened as quickly as possible in the case of an emergency opening of the sliding door installation 1, the requirement that the sliding doors 2 reach the required minimum opening width X1 within of a preset maximum time.

However, in the event that an obstacle is found, especially a person, in the surveillance zone of the sensor device 5 that monitors the secondary closing edges of the sliding blades 2, these sliding blades 2 travel the designated speed course with the reference symbol 8. This corresponds, with respect to the acceleration phase s1, to the speed course 7 of the movement without obstacles. However, the phase covered with the maximum speed v2 is limited to a shortened high-speed phase s4, which follows - rather than in the course of speed 7 of the unimpeded movement - the braking phase s5. After running the braking phase s5, the speed of the sliding blades 2 has been reduced to the low speed v1 with which the sliding blades 2 move in their low speed phase s6 to their full open position X2. Shortly before reaching the full open position X2, braking is carried out from the low speed v1 along the speed course 7 of the unobstructed movement, whereby, upon reaching the maximum opening width X2, the sliding blades 2 are braked Until the stopped state. It is essential that the acceleration phase s1, the shortened high speed phase s4 and the braking phase s5 are traveled within the predetermined maximum time, whereby at least the required minimum opening width X1 of the blades is then safely reached. sliding 2.

Of course, the opening movement of the sliding leaves 2 can also be monitored by the sensor device 5 during normal operation of the sliding door installation 1, that is, when opening the door leaves activated by a person who it is approaching, and said opening movement can be carried out with the same speeds as described above.

5 List of reference symbols

1 Sliding door installation 2 Sliding Blade 3 Fixed panel 4 Drive device

10 5 Sensor device 6 Monitoring zone 7 Speed course 8 Speed course s1 Acceleration phase

15 s2 High-speed phase s3 Brake phase s4 High-speed phase shortened s5 Brake phase s6 Low-speed phase

20 v1 Low speed v2 Maximum speed X0 Closed position X1 Minimum opening width X2 Open position

Claims (2)

1. Operating procedure of an automatic sliding door installation (1) with at least one sliding leaf (2) that is operable by means of a drive device (4) activated by an electronic control device, 5 in which the sliding door installation (1) can be used in an escape and rescue path, for which purpose the drive device (4) is configured so that the sliding leaf (2) opens fully after activation of the control device, and in which a monitoring zone (6) is monitored by a sensor device (6) which, when opening the sliding sheet (2), is exceeded by a vertical secondary closing edge of the sliding sheet (2), for which purpose the sensor device (5), before 10 the presence of an obstacle in this surveillance zone (6), sends to the control device a signal indicative of this state, with which the sliding leaf (2), after going through the acceleration phase (s1) and a phase of shortened high speed (s4), it is braked in a braking phase (s5) to a lower low speed (v1), characterized by that the braking phase (s5) follows the high speed phase (s4) before the speed course (7) of the movement without 15 obstacles, but in such a way that the acceleration phase (s1), the shortened high-speed phase (s4) and the braking phase (s5) are sized so that a pre-set minimum opening width (x1) is reached within a maximum time preset. 2. Method according to claim 1, characterized in that, in the presence of an obstacle in the area of 20 monitoring (6) of the sensor device (5), the sliding leaf (2), after reaching the minimum opening width (X1), is operated in a low speed phase (s6) with the smallest low speed (v1 ) until full opening width is reached (X2).