EP3085654A1 - Lift - Google Patents

Abstract

An elevator comprises an elevator shaft (1), a cab movable therein by a drive on a cable, at least one brake for braking and holding the cable and at least two stations on the elevator shaft with access doors (2), each having an opening (10). in a door frame (6) a control panel (3) is arranged with an outer pusher for ordering the car. One control (4) ensures regular lift operation and another control allows emergency evacuation. A device for carrying out an emergency evacuation is arranged on the inside of the door frame (6) facing away from the operating side of the control panel (3) and after an at least partial removal of the control panel (3) from the corresponding opening (10) from the outside of the door frame (6 ) forth through the opening (10) to use.

Description

The invention relates to a lift according to the preamble of claim 1.

The elevators used in buildings include a car, a counterweight, guides for the car and the counterweight, a cable assembly, a drive, a braking device and a controller.

A machine room for the drive, the braking device and the control needs space that is not available in all buildings. That is why the drive and the braking device are arranged in the lift shaft, in particular in tight space conditions. The controller is arranged so that it is accessible from the building area that can be used by people. There are solutions in which a control cabinet is located at an access door of the elevator. However, this means that there must be room for the control cabinet and that a door of the control cabinet appears next to the access door. The space required and the visible door of the control cabinet are undesirable aspects of such solutions.

EP 1 562 849 B1 and US 2012/0305337 A1 describe solutions in which the control is arranged in a door jamb so in a vertical frame part of an access door. In order for the control to be accessible, special door posts are used which have a region that can be displaced horizontally in parallel or tilted about a horizontal axis over substantially their entire height. Such special door jambs differ from all other jambs used for the elevator and their manufacture and assembly is associated with great expense. It will be readily appreciated that a visible area of these door jambs is moveable away from the jamb substantially the entire height of the door jamb, resulting in an undesirable appearance.

US Pat. No. 7,434,664 B2 and US 2012/0080273 A1 describe the evacuation of persons who are in an elevator car between two stations during a disruption interruption. In such situations, especially in the event of a power failure, the brake is released with an evacuation control to allow the elevator car to move due to a weight difference between the weight of the elevator car with passengers and the counterweight can move to the next door. The evacuation control or a cabinet with this must be located near the elevator and be perceived there, which can lead to abuse and negatively affects the appearance.

EP 1 148 018 B1 describes a arranged next to an access door of the elevator cabinet with a Wartungsbetätigungspaneel which independently of the electrical supply to release the elevator brake and can perform a movement of the elevator car to a door. A monitor of the maintenance operation panel makes it possible to limit the speed by giving up the brake release as soon as a maximum allowable speed is reached. The arrival of the elevator car at a door is visually inspected via an inspection opening. The cabinet with the maintenance operation panel disturbs the appearance, needs space and requires a specific mounting arrangement.

WO 2008/072023 A1 describes a solution in which the controller, the power supply and the drive are arranged in the elevator shaft. Control and display parts for emergencies and inspections are arranged in a mobile auxiliary device. In addition to an access door of the elevator, a switching and connecting device is arranged, so that can be switched in case of emergencies and maintenance of the normal operation control on the controller via the mobile auxiliary device. The switching and connection device disturbs the appearance, needs space and requires a specific mounting arrangement.

The invention is based on the object to find a solution in which the emergency evacuation with low construction and assembly costs, can be guaranteed without disturbing elements.

The object is solved by the features of claim 1. The dependent claims describe alternative or advantageous embodiments.

Emergency evacuation may only be carried out by specially instructed persons. In the context of the invention it was recognized that only these persons should know the access to the operation of the emergency evacuation. Persons who only use the elevator should not be aware of the presence of an emergency evacuation operator receive. All lift stations should have only the necessary elements for the regular elevator use on a standard control panel.

The standard control panel includes at least one exterior pusher with which the elevator can be ordered. Optionally, there are separate outside pushers and a drive and / or position indicator for both directions of travel. The control panel is arranged on a standard panel corresponding opening of a door frame or a vertical frame profile. The opening in the door frame for the control panel is preferably at most 30cm high and a maximum of 10cm wide, so that the mechanical stability of the door frame is reduced only slightly by the opening and the processing cost to create the opening is as small as possible.

According to the invention, a device which enables emergency evacuation is arranged on the inside of the doorframe facing away from the operating side of the control panel. For persons who are outside the elevator car in front of the access door, the device for performing the emergency evacuation behind the standard control panel and can be operated after the at least partial removal of the control panel from the outside of the door frame forth through an opening of the door frame at the control panel , The operation through the opening can be done manually or via control connections, such as cables or control units.

All access doors or their door frames with the respective control panel can look the same. All doors can use the same door frames with a standard opening for the control panel. Therefore, in the manufacture of the frame profiles as well as the door frame and during assembly of the door frame, care must be taken not whether it is a door in which a device for emergency evacuation is arranged. The decision as to whether a device for emergency evacuation is arranged at a door can be made after the installation of the standard door frame.

In a preferred embodiment, standard control panels are used, which are to be fastened with a known from the prior art fastening, in particular with latching elements and / or with releasable connecting elements, releasably attached to the opening of the door frame. After releasing a control panel, this may possibly hang on the cables to the control panel under the opening in the door frame to be left. Optionally, the cables or their feeders in the door frame comprise a plug-in connection, so that the control panel can be removed from the door frame after removing a plug connection.

It is also possible that the control panel is held with a guide device, in particular a pivoting device on the door frame, so that it performs a movement, esp. Pivoting movement for releasing the opening.

With the control panel removed, or with a free opening of the door frame, an access to the device for the emergency evacuation, which is located in the normal operating state behind the control panel. The device for the emergency evacuation can be designed differently.

In a first embodiment, the emergency evacuation device merely consists of a plug connection to which a mobile emergency operating device can be connected via a cable with a plug. So that a mobile emergency operating device is always accessible, two emergency operating devices are preferably arranged in the elevator shaft at two different stations of the elevator. Regardless of the respective position of the elevator car, at least one of the two emergency operating devices is accessible to a specially instructed person. After fetching an accessible mobile emergency control unit, its cable is inserted with a free opening of the door frame with a plug connection for emergency evacuation.

In a second embodiment, the device for emergency evacuation consists of an accessible through the opening in the door frame, mounted on the door frame emergency control device. If the emergency operating device is not sufficiently accessible through the opening in the door frame, it may be attached via a guide device on the inside of the door frame. The guide device and the emergency operating device are then designed so that the emergency operating device can be moved at least partially through the opening in the door frame against the specially instructed person.

An emergency operating device preferably comprises a display on which the position (information on the floor and / or flush) and / or the movement speed and / or the direction of movement of the elevator car can be displayed. The emergency control unit comprises at least operating elements for retrieval by loosening the Brakes. Preferably, it also includes controls for emergency operation. Optionally, the emergency control device also includes a voice and possibly a hearing connection to the elevator car.

In the event of a malfunction, it is expedient for the first person from the emergency operating device to be informed of the steps for evacuation. Then it is usually tried in an emergency operating mode to guide the elevator car using the drive to a station. For this purpose, the emergency operating device preferably comprises an on / off switch and an up / down switch for emergency operation.

If the emergency operation does not work, it is turned off, in particular, then the main switch of the elevator is turned off and the retrieval is turned on with a corresponding switch. The emergency operating device is then connected to a battery or a battery of the braking device. When retrieving switches are used to release the brakes and the resulting cabin movement is tracked, preferably on the display of the emergency control unit. If the speed of the car increases above a specified limit speed, the brake release must be reduced at least until the limit speed has fallen short enough. As soon as the cab arrives flush with a station, the brakes are released. If brakes are applied, the specially instructed person at the station with the elevator car can open the door and free the person.

The emergency control unit may also include a diagnostic port through which the controller is accessible.

In an inventive elevator with at least one device for emergency evacuation, the controller, the power supply, the drive and the braking device can be arranged in the elevator shaft. If the components arranged in the lift shaft have to be serviced, the elevator car can be moved to a desired position with the emergency control unit. Then the main switch is switched off and a door is opened at the component to be serviced.

Fig. 1

eine perspektivische Darstellung eines Aufzugsschachts mit zwei Zugangstüren,

Fig. 2

eine horizontale Schnittdarstellung durch den Liftschacht bei einer Zugangstür,

Fig. 3

eine Ansicht einer Zugangstür,

Fig. 4

eine perspektivische Darstellung eines Ausschnitts des Türrahmens mit der Standard-Öffnung für das Bedienfeld,

Fig. 5

eine Ansicht eines Ausschnitts des Türrahmens mit der Standard-Öffnung für das Bedienfeld,

Fig. 6

eine Schnittdarstellung des Türrahmens gemäss F-F in Fig. 5,

Fig. 7

eine perspektivische Darstellung eines Ausschnitts des Türrahmens mit einer aus der Standard-Öffnung des Bedienfelds heraus geklappten Halterung für ein Notbediengerät,

Fig. 8

eine Vertikalschnitt-Darstellung des Ausschnitts des Türrahmens mit einer aus der Standard-Öffnung des Bedienfelds heraus geklappten Halterung für ein Notbediengerät und

Fig. 9

eine perspektivische Darstellung eines Ausschnitts des Aufzugsschachts mit einer Zugangstür, bei der ein Notbediengerät angeschlossen ist.

The drawings illustrate the elevator according to the invention on the basis of three exemplary embodiments. Show

Fig. 1

a perspective view of a hoistway with two access doors,

Fig. 2

a horizontal sectional view through the elevator shaft at an access door,

Fig. 3

a view of an access door,

Fig. 4

a perspective view of a section of the door frame with the standard opening for the control panel,

Fig. 5

a view of a section of the door frame with the standard opening for the control panel,

Fig. 6

a sectional view of the door frame according to FF in Fig. 5 .

Fig. 7

a perspective view of a section of the door frame with a folded out of the standard opening of the panel out holder for an emergency control device,

Fig. 8

a vertical sectional view of the detail of the door frame with a folded out of the standard opening of the panel out bracket for an emergency control and

Fig. 9

a perspective view of a section of the elevator shaft with an access door, in which an emergency control device is connected.

Fig. 1 shows an elevator shaft 1 with two access doors 2. The elevator includes a car, not shown, preferably with a the access doors 2 associated cabin door. With a drive, not shown, and preferably a steel cable cab movement is driven, in particular by the use of a counterweight, not shown, the weight to be moved is reduced.

To brake the cabin movement and to hold the car at a desired position, a brake device, not shown, is used, the brake elements brake or hold the car in the energized state. At least one unillustrated release solenoid is used to release the brake elements. The at least one release Elekromagnet is connected via a brake control with a battery. The battery and the brake control allow the brake elements to be released even if the mains voltage fails. So that the cabin does not perform undesirably fast movement when the brake elements are released, short-circuiting bridges may optionally be switched on which achieve braking when the drive supply, dissolved brake elements and rotating drive are stopped by the generator effect of the drive and thus allow a slow cabin movement for an emergency release.

Cables are provided for powering the drive, for transmitting control signals between a controller and the drive and the braking device, and for powering the cabin and transmitting control and display signals between the cab and the controller. The controller is also connected to control panels 3 of the access doors 2.

Fig. 2 shows a arranged in the elevator shaft 1 control 4 of the cable 5 to the access doors 2, in particular also to the respective control panel 3, lead. To connect the controller 4 with control and display elements of the cabin trailing cables are preferably used. The controller 4 can be located at the lowest station, but possibly also at another station, or even from the shaft 1 away. The drive and in particular the braking device can be stationary, namely in the elevator shaft or in a machine room, or even on a moving part, namely on the counterweight or on the cabin are arranged. Depending on the selected drive position connections between the controller 4 and the drive are used.

According to Fig. 3 the access door 2 comprises a door frame 6 with two vertical frame profiles 7 and a horizontal frame profile 8 connecting the vertical frame profiles at the top. When the door is closed, the door opening is closed by at least two sliding door surfaces 9. To fasten the control panel 3, a panel 10 corresponding to the control panel 3 is formed in a vertical frame profile 7. In the illustrated situation, the control panel 3 is removed from the opening 10 and stands on the floor or the threshold 11 to the access door 2 at the lower end of a vertical frame profile. 7

The remote control panel 3 was preferably releasably attached to the opening 10 with latching members and / or releasable fasteners such as screws. After loosening the control panel 3, the cables of its control and display elements were unplugged with appropriate plugs behind the opening 10, so that the opening 10 is freely accessible.

In the illustrated embodiment, an emergency operating device 12 on the side facing away from the operating side of the control panel 3 inside of the vertical frame profile 7 and the door frame 6 is arranged. Specially instructed persons can now operate the emergency operating device 12 through the opening 10.

The emergency operating device 12 preferably comprises a display 12a on which the position or information about the floor and the flush, the speed of movement and the direction of movement of the elevator car are displayed. The emergency operating device 12 comprises at least first return control elements 12b, for example in the form of an on / off switch and at least one ventilation switch for releasing a brake. Preferably, it also includes a brake check switch and emergency operation controls 12c, for example, in the form of an on / off switch and an up / down switch. An optionally provided diagnostic connector 12d enables a detailed functional test. Optionally, the emergency operating device 12 also includes a voice and optionally a hearing connection to the elevator car.

Fig. 4 shows the arrangement of the front surface 13 of the emergency control device 12 in the door frame 6 set back slightly from the opening 10 into the interior of the door frame 6. In the illustrated embodiment are from the front surface 13 before mounting parts 14, which ensure a predetermined space between the plane with the opening 10 and the front surface 13 of the emergency control device 12 for the operating and display elements of the control panel 3.

Fig. 5 to 8 show an embodiment in which the controls of the emergency control device 12 are attached via a pivoting device on the inside of the door frame 6. The pivoting device comprises a pivot axis 13 around which a housing part 14 for holding the operating elements of the emergency control device 12 is pivotally mounted, so that a part of the emergency control device 12 can be at least partially pivoted out of the door frame 6 through the opening 10. The pivot axis 13 is arranged on a holder 15, wherein the holder 15 is fixed at the opening 10 on the door frame 6 and in the illustrated embodiment also carries the display 12a.

To be able to releasably fix the housing part 14 in the pivoted-in position, this comprises a locking device 16, which can be simply actuated or released and locked by a specially instructed person. It goes without saying that the display 12 a can be arranged on the housing part 14, for example, at its front side after pivoting outwards. Instead of a Swiveling device can be provided for the movement of the emergency operating device 12 between the operable and inoperable position and another guide means.

Fig. 9 shows an embodiment in which the device for emergency evacuation consists only of a plug connection for a cable of a mobile emergency control device 12. The plug connection can be used after the removal of the control panel 3 from the opening 10 behind the control panel 3. So that a mobile emergency operating device 12 is always accessible, two emergency operating devices are preferably arranged in the elevator shaft 1 at two different stations of the elevator. Regardless of the respective position of the elevator car, at least one of the two emergency operating devices 12 is accessible to a specially instructed person. After the manual opening of an access door 2, a mobile emergency operating device 12 stored there is removed, the access door is closed again and the cable of the emergency operating device 12 is plugged in when the plug-in connection is exposed. Then the emergency evacuation can be carried out.

The emergency control unit 12 and an operable return control are connected to a battery and the braking device. The release of the brake device can be achieved via the battery. With this arrangement, a return option is provided in case of power failure.

In the normal operating mode of the elevator, the battery is charged permanently. Each time the elevator is approached, the braking device is unblocked if the battery is sufficiently charged. If the charge is insufficient, the elevator in the station remains blocked and enters a fault mode. In fault mode, the cab and shaft doors open and remain open until the fault has been rectified. This prevents the inclusion of persons.

In the event of a breakdown in which the car is blocked between two stops, an emergency operation or a return operation is possible. If the power supply is available, an instructed person can use the emergency control to move the cabin to the nearest stop using the corresponding direction buttons. With the emergency release key, the access door and the car door can be manually opened at the location of the car to free the trapped persons.

If the power fails, the main switch is turned off to prevent a dangerous condition when the power returns suddenly. Subsequently, the braking device is released via the return control. Due to the freewheel of the drive, the car will automatically move up or down to the nearest stop according to the car load. In this emergency operation, short-circuiting bridges are switched on, so that braking is achieved by the generator effect of the drive.

Claims (10)

Elevator with a cabin movable in an elevator shaft (1), a cable for moving the cabin, a drive for driving the cable, at least one brake for braking and holding the cable, at least two stations on the elevator shaft with access doors (2) in which a control panel (3) with at least one outer pusher for ordering the car is arranged in each case of an opening (10) in a door frame (6), and with a control (4) for ensuring the regular elevator operation and a control for enabling emergency evacuation, characterized in that a device for carrying out an emergency evacuation is arranged on the inside of the door frame (6) facing away from the operating side of the control panel (3) and after an at least partial removal of the control panel (3) from the corresponding opening (10) from the outside of the door frame ( 6) forth through the opening (10) is to use. Elevator according to claim 1, characterized in that the opening (10) in the door frame (6) for the control panel is a maximum of 30cm high and a maximum of 10cm wide. Elevator according to claim 1 or 2, characterized in that the means for performing an evacuation evacuation inside the door frame (6) at the opening (10) comprises a plug connection, to which a mobile emergency control device (12) is to be connected via a cable with a plug. Elevator according to claim 1 or 2, characterized in that the means for performing an emergency evacuation inside the door frame (6) at the opening (10) comprises an emergency operating device (12). Elevator according to claim 4, characterized in that the emergency control device (12) on the inside of the door frame (6) fixed thereto and accessible from the outside of the door frame (6) through the opening (10) for operation. Elevator according to claim 4, characterized in that the emergency control device (12) on a on the inside of the door frame (6) fixed guide device (13) and at this at least partially through the opening (10) on the outside of the door frame (6) movable is. Elevator according to one of claims 4 to 6, characterized in that the emergency control device (12) at least first controls (12b) for releasing the at least one brake, optionally second controls (12c) for emergency operation and in particular a display (12a) for displaying at least a cabin position information and / or a current cabin speed. Elevator according to one of claims 1 to 7, characterized in that at least a part of the controller (4) in the elevator shaft (1) is arranged. Elevator according to one of claims 1 to 8, characterized in that the control panel (3) with latching elements and / or with releasable connecting elements, releasably secured to the opening (10) of the door frame (6). Lift according to one of claims 1 to 9, characterized in that the control panel (3) after release from the door frame (6) on cables to the control panel (3) under the opening (10) depends or after pulling out a plug connection from the door frame (6 ) or can be moved away from the opening (10) on a guide device connected to the door frame (6).

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