WO1998014395A1 - Operating system for lift doors - Google Patents

Abstract

An operating system (1) placed on the cabin door (2) shown with a continuous line in rest position and with a dotted line in working position. An arrow marked with a (Y) indicates a horizontal movement undertaken by the operating system (1) in the Y-direction and an arrow marked by (X) indicates a horizontal movement undertaken by the operating system (1) in the X- direction. The X/Y movement of the operating system (1) is produced by means of an actuator and motive mechanics. On a shaft door (3) is placed an operating cam (4) upon which the operating system (1) rests. Operating system (1) sensors measure the distance to the shaft door (3) and the operating cam (4). An electromagnet of the operating system (1) produces the necessary force for coupling of cabin door (2) to shaft door (3).

Description

Driver system for elevator doors

The invention relates to a driver system for elevator doors consisting of a magnet arranged on a car door, which acts with its magnetic field on a magnetizable driver curve arranged on a storey door.

From the US Pat. No. 5,487,449, a driver device has become known, in which the cabin door is magnetically coupled to the floor door when the cabin and floor door are opened and closed. An electromagnet or permanent magnet arranged on the car door acts with its magnetic field on a magnetizable driver arranged on the floor door, the doors being coupled by means of magnetic force and being opened and closed together by means of a door drive. For a gentler coupling, pivotable rollers are arranged on the magnet, the magnetic force counteracting spring forces generated by springs arranged on the rollers.

A disadvantage of the known device is that tolerances caused by the elevator system

Driver device can not be corrected sufficiently and there is therefore a risk that the driver device collides with the shaft door sill or parts of the shaft door lock during elevator operation and thus malfunctions and damage to system parts can occur.

The invention seeks to remedy this. The invention, as characterized in claim 1, solves the problem of avoiding the disadvantages of the known device and of creating a driver system which has different tolerance positions on the cabin door Driver elements and driver elements arranged on the shaft door are automatically adjusted during the door movement.

The advantages achieved by the invention can be seen essentially in the fact that the required distance between the cabin door sill and the shaft door sill can be minimized, so that the gap between the sleepers can also be run over with small-wheeled vehicles. It is also advantageous that movement tolerances occurring horizontally in the X / Y direction from loading and unloading of the elevator car as well as tolerances from guide wear and building settlements are automatically recognized and corrected. It is also advantageous that the elevator doors can be opened prematurely while the elevator car is entering a stop in the upward and downward direction of travel without certain driver elements being subjected to particular wear and tear. An advantageous consequence of this is the long service life and freedom from maintenance of the driver system according to the invention.

The invention is explained in more detail below with the aid of drawings which illustrate only one embodiment. Show it:

1 is a plan view of an elevator entrance / exit,

Fig. 2 is a plan view of an inventive

Driver system in a schematic representation,

2a is a side view of a movement mechanism of the driver system,

2b is a top view of the movement mechanics of the driver system, 2c is a side view of a drive of the movement mechanism,

2d is a plan view of the drive of the movement mechanism,

2e is a view A of the drive of the movement mechanism,

3 details of the driver system for arranging a magnetic carriage,

3a details of the magnetic carriage,

3b is a view of an arranged on the magnetic carriage

Slider,

3c is a plan view of the slider arranged on the magnetic slide,

3d is a side view of the slider arranged on the magnetic slide,

4 is a base plate fastened to the cabin door,

4a details of the attachment of the base plate,

Fig. 5 arrangement variants of the driver system on the cabin door and

Fig. 5a arrangement variants of the driver curve on the shaft door. 1 shows a top view of an elevator entrance / exit with an elevator car AU standing on one floor. The elevator car AU has a car door 2, which is shown in the closed state and is driven by a door drive (not shown). At the

Cabin door 2, a driver system 1 is arranged, which is shown with a solid line in the rest position and with a broken line in the working position. An arrow labeled Y shows the horizontal direction of movement of the driver system 1 in the Y direction and an arrow labeled X shows the horizontal direction of movement of the driver system 1 in the X direction. A wall opening in a shaft wall SW is closed with a door frame TR and with a shaft door 3. On the shaft door 3 shown in the closed state, a driver curve 4 with, for example, an L-profile is arranged, against which the driver system 1 comes to rest. The closing direction of the car door 2 and the shaft door 3 is symbolized by an arrow labeled SL and the opening direction of the car door 2 and the shaft door 3 is symbolized by an arrow labeled OE. The cabin door 2 or shaft door 3, designed as a sliding door, has at least one door leaf. 5 denotes the gap between a cabin door sill KS and a shaft door sill SS.

Fig. 2 shows the driver system 1 in a schematic representation. FIGS. 2a and 2b show the movement mechanics of the driver system shown schematically in FIG. 2. 2c, 2d and 2e show the drive of the movement mechanism. The driver system 1 arranged on the cabin door 2 is movably supported at articulation points 10, 11, 12, 13, 14, 15 of an articulated support rail 1.1.3. The hinge points 12, 15 are also one on slideways 16 Slideway support rail 1.1.2 slidable. The articulation points 10, 11 are movably connected by a first articulation rod 18, the articulation points 11, 12 by a second articulation rod 19, the articulation points 13, 14 by a third articulation rod 20 and the articulation points 14, 15 by a fourth articulation rod 21. A housing 1.1.1 of the driving system 1 is arranged at the articulation points 11, 14. A first actuator 23, for example an AC threaded spindle motor, acts on a lever 22, which is connected at right angles to the articulation and sliding point 15. The actuator 23 is connected to the base plate 1.1 at fastening points 23.2 and drives a threaded spindle 23.1, which is connected to a threaded nut 22.1 arranged on the lever 22. The lever 22 executes a horizontal movement HB. It will

Driver system 1 shifted by a first path 30 determined by the lever geometry in the X direction and by a second path 30.1 in the Y direction. During the movement of the driver system 1, a travel end position 31 is actuated and a first measuring distance 32 to a contact surface 4.1 of the driver curve 4 is measured by means of an X sensor 34, for example an infrared, laser or ultrasonic sensor. If the predetermined first measuring distance 32 is reached, the driver system 1 remains in the working position shown with a broken line. If the first measuring distance 32 has not been reached, or a defined distance tolerance has been undershot, the first actuator 23 is activated by means of the X sensor 34 and a driver control (not shown), the driver system 1 being readjusted until the predetermined first measuring distance 32 is reached.

When the first measuring distance 32 is reached and any necessary correction by the X sensor 34, a Y sensor 33 measures a second measuring distance 32.1 from a sliding surface 4.2 of the driver curve 4. Die Driver control checks whether the predetermined second measuring distance 32.1 has been reached. If the predetermined second measuring distance 32.1 is reached, no correction is made. If, however, there is a deviation in the distance measurement, the current value of the second measuring distance 32.1 is stored in the driver control memory as a door edge correction value and used for positioning the cabin door edge and the shaft door edge as described further below.

3 and FIG. 3a show a magnetic slide 5.1 arranged in the housing 1.1.1 of the driver system 1 with a mounted slide 43.1 which can be moved in guides 41, 42. After the second measuring distance 32.1 has been reached, the magnetic slide 5.1 is moved in the Y direction in the guides 41, 42 of the housing 1.1.1 by means of a second actuator 40 until the slide 43.1 has a surface 43, the slide 43.1 using spring elements 46 , 47 is supported resiliently with respect to the magnetic slide 5.1, on the sliding surface 4.2 of the

Driver curve 4 rests and the spring elements 46, 47 are compressed so that a magnet, for example an electromagnet 45, has reached a predetermined first distance 44. The driver control monitors this approach process by means of the Y sensor 33 and switches off the second actuator 40 as soon as the predetermined first distance 44 has been reached. Now the driver control switches on the electromagnet 45 consisting of magnetic body 45.1 and magnet coil 5.5, which connects the driver system 1 to the sliding surface 4.2 of the driver curve 4 with an adhesive force regulated by means of the driver control. The sensors 33, 34 are arranged in the above-mentioned slide 43.1. 3b, 3c and 3d show a view, top view and side view of the slide 43.1, on which a recess 43.1.1 for the magnetic slide 5.1 and centering holes 43.1.2 for the springs 46, 47 are arranged. 3c shows the arrangement of the Y sensor 33 and the X sensor 34, which are cast, for example, in the slider 43.1.

After the magnetic coupling of the car door 2 with the shaft door 3, the door drive is activated and the doors are moved in the opening direction OE. During the opening movement of the cabin door 2 and the shaft door 3, the driver control checks whether, during the movement of the driver system 1 to the driver curve 4, a second measurement distance 32.1 has been stored in the driver controller memory as a door edge correction value, as described above. If no door edge correction value is stored, the door edges of car door 2 and shaft door 3 match, the door edges are parallel at the same height. If, due to tolerance deviations, for example due to uneven loading of the elevator car AU, a second measuring distance 32.1 has been stored, the second actuator 40 adjusts the magnetic slide 5.1 until the door edges of the car door 2 and the shaft door 3 are again parallel at the same height. This tolerance correction is necessary so that both door front edges of the door leaf of the car door 2 and the shaft door 3 are positioned at the same height and move in parallel.

During the entire opening process, the open doors 2, 3 are parked in the open position and during the closing process, the electromagnet 45 is switched on and the doors 2, 3 are coupled by magnetic force locking. The magnetic force of the electromagnet 45 is designed so that both at maximum acceleration Doors 2, 3 in the opening direction OE, the force fit of the electromagnet 45 is sufficient to move the shaft door 3 in any case by the door drive.

3 and 3a, 40.5 denotes the stroke of the second actuator 40 and 44.1 the deflection stroke of the slider 43.1, which is essentially determined by the spring elements 46, 47. A threaded spindle 40.0 of the second actuator 40 engages in a spindle nut 40.1 arranged on the magnetic slide 5.1, the rotational movement of the threaded spindle being converted into a linear movement of the magnetic slide 5.1. The spindle nut 40.1 is in turn movably mounted on the magnetic slide 5.1 by means of compression springs 5.3.

4 and 4a show a base plate 1.1 which is arranged on the car door 2 and which carries the driver system 1. In order to prevent jamming between the movable elevator car AU and car door 2 and the shaft door 3 which is fixed in the elevator shaft and the driver system 1, the base plate 1.1 is movably connected to the car door 2 by means of oscillating elements 1.2. These vibrating elements 1.2 are designed such that they can withstand thrust forces in the Y direction without the driver system 1 being displaced in the X direction. In addition, in the

The driver control causes the door opening of the cabin door 2 and the shaft door 3 to reduce the magnetic force between the electromagnet 45 and the driver curve 4 in such a way that only the minimum holding force is generated which prevents the shaft door 3 from being closed by the closing force applied in accordance with the regulations. As a result of this reduction of the adhesive force, it is then easily possible that, for example when the loading conditions change, the adjacent drive system 1 or surface 43 of the slider 43.1 can move according to the necessary movement in the up and down direction on the sliding surface 4.2 of the driver curve 4.

The rectangular base plate 1.1, for example, is supported at its corners on the vibrating elements 1.2. As shown in FIG. 4a, an oscillating element 1.2 is fastened to the cabin door 2 by means of a screw 1.2.4 and a nut 1.2.1. A spacer 1.2.2 penetrating the vibrating element 1.2 serves as a spacer and a locking washer 1.2.3 serves as a support and securing the screw 1.2.4.

The door drive initiates the closing process of the cabin door 2 and the landing door 3. During the closing movement, the door edge correction, which was caused during the opening movement by existing tolerance deviations, is brought back to the defined value of the second measuring distance 32.1 by the second actuator 40. Due to the driving curve characteristic of the door drive, the closing speed at the end of the travel path of the doors 2, 3 is reduced to 0 m / s, so that the doors 2, 3 come to a standstill exactly at the predetermined position. If, due to the loading condition of the cabin, there are no deviations between the cabin door edge and the

Shaft door edge have arisen, the electromagnet 45 is switched off when the door position is reached. Both doors 2, 3 are closed.

If the door edge of the shaft door 3 runs along the door edge of the cabin door 2, when the electromagnet 45 is switched off, the shaft door 3 will continue to move and close by the present deviation. If there is an opposite deviation of the door edges, so that the shaft door 3 in front of the cabin door 2 reaches its end position, the increasing pressure force on the slider 43.1 is absorbed by the compression springs 5.3.

If the non-positively coupled doors 2, 3 are closed again, the electromagnet 45 is switched off electrically, the magnetic force disappearing. The second actuator 40 pulls the magnetic carriage 5.1 into a defined parking position and the first actuator 23 also moves the driver system 1 into a parking position. In the park position, the driver system 1 is on the

Cabin door 2 retracted so that the gap 5 between the cabin door sill and the shaft door sill is largely free. While the elevator car AU is traveling through the elevator shaft, the driver system 1 is in contact with the shaft door sill, even in the case of dynamic ones

Movements of the elevator car AU are definitely excluded. The parking position of the driver system 1 is secured by a retaining spring 6, so that the driver system 1 cannot leave its parking position even in the event of a power failure in the elevator system.

The parking position of the driver system 1 and the driver curve 4 protruding into the gap 5 are coordinated with one another in such a way that, in an emergency, when the elevator car AU is in the unlocking area, the shaft door 3 can be opened via the emergency release without the car door 2 also being opened via the driver curve 4 . Driver system 1 and driver curve 4 can be driven past each other without touching. This property enables the driver system 1 to be easily accessible on one floor with the shaft door 3 open and to be able to be serviced without the travel movements of the elevator car AU required in conventional driver systems with parallelograms in order to decouple the doors 2, 3. The premature opening of the doors 2, 3 can be initiated at any point within the permissible unlocking range depending on the length of the driver curve 4. As described above, the driver system 1 is moved to the measuring distances 32, 32.1 by the actuators 23, 40, the driver system 1 comes to bear on the driver curve 4, the electromagnet 45 is switched on, the magnetic force acts and holds the driver system 1 and driver curve 4 in a force-locking manner together. During this process, which takes place in the unlocking area, about 12 to 15 cm before the floor position, the elevator car AU moves in the elevator shaft at a decreasing speed. The sliding piece 43.1 lies with its sliding surface 43 on the sliding surface 4.2 of the driver curve 4 supported by the force of the spring elements 46, 47. A suitable choice of the material of the sliding pieces 43.1, for example polyethylene, ensures a noiseless, practically friction-free, low-wear movement of the driving system 1 on the driving curve 4.

The magnetic force of the electromagnet 45 can be within the permissible when entering a floor

Unlocking range can also be controlled slowly increasing, so that sliding of the slider 43.1 on the sliding surface 4.1 of the driver curve 4 is optimally possible during this movement phase in the upward or downward direction.

5 and 5a show arrangement variants of the driver system 1 and the driver curve 4 on the car door 2 and on the shaft door 3. The doors 2, 3 are designed, for example, as two-leaf doors opening from the center. In the arrangement variant a, the driver system 1 or the driver curve 4 are fastened in the area of the upper carriage LW. In the arrangement variant b, the driver system 1 or the driver curve 4 are fastened on the door leaves at the level of the center of gravity S. to avoid unnecessary momentary loads on the door guides. In the case of the arrangement variant c, the driver system 1 or the driver curve 4 are fastened in the region of the door thresholds KS or SS.

Claims

claims 1. Driver system (1) for elevator doors consisting of a magnet (45) arranged on a car door (2), which acts with its magnetic field on a magnetizable driver curve (4) arranged on a storey door (3), characterized in that the magnet ( 45) is displaceable relative to the cabin door (2). 2. Driver system according to claim 1, characterized in that the magnet (45) by means of a drivable movement mechanism (1.1.1, 16, 18, 19, 20, 21, 5.1, 43.1) is horizontally displaceable in the X / Y direction. 3. Driver system according to claim 2, characterized in that sensors (34, 33) are provided, which the distance (32) of the magnet (45) in the X direction to the driver curve (4) or the distance (32.1) in Y- Measure the direction to the driver curve (4). 4. driver system according to any one of the preceding claims, characterized in that by means of a first actuator (23) drivable link rod pairs (18, 19, 20, 21) are provided, one at pivot points (11, 14) of the link rod pairs (18, 19, 20, 21) arranged housing (1.1.1) performs a movement in the X / Y direction and that the articulated rod pairs (18, 19, 20, 21) by means of an articulated support rail (1.1.3) and slideway support rail (1.1.2) on a base plate (1.1) are arranged, which is vibration-insulated connected to the cabin door (2). 5. Driver system according to claim 4, characterized in that in the housing (1.1.1) a movable by means of a second actuator (40) magnetic carriage (5.1) with a magnet (45) is provided. 6. Driver system according to claims 4 and 5, characterized in that the actuators (23, 40) are threaded spindle motors, a threaded spindle (23.1) of the first actuator (23) with a lever (22) arranged on the lever (22) by means of a Threaded nut (22.1) is connected and a threaded spindle (40.0) of the second actuator (40) with a Magnet slide (5.1) arranged spindle nut (40.1) is connected. 7. Driver system according to claim 5, characterized in that on the magnetic carriage (5.1) a slider (43.1) is arranged displaceably, wherein in the coupled state of the doors (2, 3) a surface 43 of the slider 43.1 on a sliding surface (4.2) of the driver curve (4) and that the sensors (33, 34) are arranged on the slide (43.1). 8. Driver system according to one of the preceding claims, characterized in that a driver control is provided which controls the actuators (23, 40) by means of signals from the sensors (33, 34) and the magnetic carriage (5.1) with the magnet (45) on one predetermined first measuring distance (32) in the X direction and a predetermined second measuring distance (32.1) in the Y direction. 9. driver system according to claim 8, characterized in that the driver control in the event of deviations corrects the second measuring distance (32.1) by means of the second actuator (40) to the predetermined second measuring distance (32.1) and thus the door edges of the doors (2, 3) at the same Height leads parallel. 10. Driver system according to claims 8 and 9, characterized in that the magnetic force of the electromagnet (45) can be regulated by means of driver control when the elevator car (AU) is moved into a floor within the permissible unlocking range, so that during this movement phase in the upward or downward direction sliding of the slider (43.1) on the sliding surface (4.1) of the driver curve (4) is possible.