CN105197701B

CN105197701B - Control panel for elevator

Info

Publication number: CN105197701B
Application number: CN201510324468.0A
Authority: CN
Inventors: A.黑凯嫩
Original assignee: Kone Corp
Current assignee: Kone Corp
Priority date: 2014-06-13
Filing date: 2015-06-12
Publication date: 2020-06-19
Anticipated expiration: 2035-06-12
Also published as: CN105197701A; EP2955144A1; EP2955144B1; FI126639B

Abstract

The invention relates to a control panel (1) for an elevator, which control panel comprises a base (2), side walls (3', 3 "), a door (4) and a locking mechanism (6, 7, 8, 9, 10, 11) for locking and opening the door. The locking mechanism comprises a capturing device (6) adapted to be movable between a locked position and a released position, and a power controllable actuator (7) connected to the capturing device, the actuator being adapted to move the capturing device (6) in response to a wireless control signal.

Description

Control panel for elevator

Technical Field

The present invention relates to a structure of a control panel for an elevator.

Background

Elevators comprise various electrical components, such as e.g. electronics inserts, relays, switches, safety devices, etc., by means of which the operation of the elevator is controlled.

Most of the electrical components of the elevator are arranged in a separate control panel from which the control cables and the supply cables extend to different parts of the elevator system. The main switches of the elevator and the elevator control electronics are, in particular, usually arranged in the control panel. A manually operated device can also be provided in the control panel, by means of which device the elevator is operated during service and maintenance and when passengers stuck in the elevator car are rescued in the event of a fault.

The control panel is traditionally located in a separate machine room, access to which is limited. However, many elevators today do not have a separate machine room. In these so-called machineroom-less elevators, the control panel may e.g. be located in the elevator hoistway or on a landing of the elevator located outside the elevator hoistway. In this case, the control panel is typically locked so that unauthorized persons cannot access the components in the control panel.

One problem is that control panels on the floor level and on the other hand in the elevator hoistway can be the target of vandalism. The locking of the control panel is not necessarily sufficiently effective to prevent unauthorized opening of the control panel. In addition, the actual lock of the control panel itself may become a target of destruction; for example, an attempt may be made to insert a foreign object into a keyhole in the control panel.

One object of the invention is to disclose an elevator control panel which is protected against vandalism better than known from the prior art.

In order to achieve this object, the invention discloses an elevator control panel and a key. Preferred embodiments of the invention are described in the dependent claims. Some embodiments and combinations of the various embodiments of the invention are also provided in the description part and drawings of the present application.

Disclosure of Invention

One aspect of the invention is an elevator control panel including a base, a sidewall, a door, and a locking mechanism for locking and unlocking the door. The locking mechanism comprises a capture device adapted to be movable between a locked position and a released position, and an electrically controllable actuator connected to the capture device, the actuator being adapted to move the capture device in response to a wireless control signal. In this case, the lock may be electrically opened and closed by the actuator by sending a wireless control signal for controlling the actuator. Due to the wireless electronic control, the control panel with its locking mechanism can be designed without the traditional keyhole in the control panel door. In some embodiments, the control panel is fitted into a door frame of a landing floor door, the outer surface of the control panel forming an unbroken working surface as part of the door frame when installed on the stopping floor. In this case, the person approaching the landing door does not even have to pay attention to the control panel in the door frame of the landing door.

A second aspect of the invention is a key for locking and unlocking the locking mechanism of the elevator control panel shown in the description.

In some embodiments, the control panel includes electronics configured to control movement of the elevator car. In some embodiments, the control panel comprises an inspection drive connection, via which a service person may give a control instruction for performing a service procedure and/or a rescue procedure.

In a preferred embodiment of the invention, the locking mechanism comprises a manually operated latch engaged with the actuator, the latch being adapted to prevent in the first position and to allow movement of the catch device towards said release position in the second position. In some embodiments, the control panel has a spring, the force caused by which attempts to displace the capture device toward the release position. In some embodiments, the catch device is thereby adapted such that a gravitational force exerted on said catch device attempts to displace the catch device towards said release position. In this case, the catch device can be displaced by means of spring/gravity into the release position by opening the manually operated latch, in which case the opening of the door is also possible in cases in which the electricity for operating the actuator is not available (e.g. a possible power cut). In a preferred embodiment of the invention, the rotation axis of the latch is in the direction of the surface of the control panel door. In this case, a flat key can be pushed into the control panel from a narrow gap in the door or in the edge of the door, and the latching/locking of the door can also be opened by turning the key in the direction of the gap.

In a preferred embodiment of the invention, the latch is rotatable. In a preferred embodiment of the invention, the key comprises a counterpart engaging the manually operated latch, around the rotational axis of the latch, and a handle from which the latch can be turned around its rotational axis. In this case, the latch can be released and the door can be opened by hand by turning the key.

In a preferred embodiment of the invention, the catch means is an elongate track extending along a side wall of the panel, the track having a detent in a longitudinal direction adapted to engage a corresponding portion on the door. In some embodiments, the control panel is elongated, in which case it can easily be located, for example, in a door frame of a landing door. In this case, the door can be locked by means of a continuous brake of the elongated rail/on the rail over substantially its entire length, which makes opening the control panel without the difficulty of a key.

In a preferred embodiment of the invention, the control panel has an elongated, inclined wall portion. In a preferred embodiment of the invention, the track is adapted to extend along an outer surface of the inclined wall portion, the actuator being fitted into a space between the inclined wall portion and the door. In a preferred embodiment of the invention, the inclined wall portion is located between the base and the second side wall, the door continuing to bend from the hinge point over the doorway to be in the direction of the second wall portion and bending forward over the second wall portion to be in the direction of the base such that space for the actuator remains between the door and the inclined wall portion. In this case, the space for the actuator is created outside the control panel but under the cover and shielded from vandalism. Since the actuator is outside the control panel, the components of the control panel are also well shielded when operating the actuator.

In a preferred embodiment of the invention, the edge of the first side wall on the door side is bent outwards and the edge of the door is correspondingly bent inwards so that these bends form a detachable hinge between the first side wall and the door. In this way, a simple hinge mechanism can be formed, by means of which the door can be rotated in a small space and the opened door can also be easily detached from the control panel during operation.

In a preferred embodiment of the invention, the counterpart of the detent, which is on the door, is arranged in a portion of the inner surface of the door which is in the direction of its base. In this case, when the door is locked, the stopper is wedged against the corresponding portion, and a force due to the action of the stopper is exerted on the door, and the force pressing the door against the doorway compresses the contact between the door and the doorway.

In a preferred embodiment of the invention, the actuator comprises an electronic control unit comprising an input circuit for wireless control signals. In a preferred embodiment of the invention, the input circuit comprises a plurality of magnetic sensors arranged in predetermined positions with respect to each other, and the control unit is configured to form control instructions for the actuator for moving the capturing device when the measurements received from all the magnetic sensors correspond to predetermined values. In a preferred embodiment of the invention, the device for forming a wireless control signal comprises a plurality of permanent magnets, which are assembled so as to be mutually positioned so as to correspond to said magnetic sensors. This means that the position coding has already been performed by means of the magnetic sensor, in which case the opening of the door requires that the key, position-coded in the same way, be brought to the correct position in the vicinity of the electronic control unit.

In a preferred embodiment of the invention, the actuator is a spindle motor. One advantage of the spindle motor is that sufficient force is obtained with a small-sized motor for moving the rail/brake with sufficient reliability.

In a preferred embodiment of the invention, the control panel comprises an end door frame, and between the end door frame and the door is a gap for receiving a key. In this case, a flat key can be brought from the gap to the correct position near the electronic control unit, and a separate lock hole does not need to be opened in the chamber door.

In a preferred embodiment of the invention, the key comprises means for forming a wireless control signal. Alternatively, or in addition to the above, the key may comprise a radio transmitter which transmits an electromagnetic signal which is read by a receiver in the electronic control unit. Instead of electromagnetic signals, for example ultrasonic signals may also be used.

The foregoing summary, as well as additional features and additional advantages of the present invention, which are illustrated below, will be better understood by virtue of the following description of embodiments, which does not limit the scope of application of the invention.

Drawings

Fig. 1 shows a front view of an elevator control panel fitted into a door frame of a landing door;

FIG. 2 shows a vertical portion of the control panel of FIG. 1 as viewed from the rear;

FIG. 3 schematically illustrates the control panel of FIG. 1 as seen from below;

FIG. 4 schematically illustrates a locking mechanism of the control panel of FIGS. 1-3;

FIG. 5 shows a key suitable for the locking mechanism of FIG. 4;

fig. 6 shows a cross section of the bolt 11 of fig. 4 adjacent to the groove 23.

Detailed Description

Fig. 1 shows an elongated control panel 1 intended to be arranged in a side door frame of a landing door of an elevator without machine room. A landing door refers to a door that closes the entrance from the floor level to the elevator hoistway. Elevator passengers can be transferred into the elevator car and leave the elevator car via the stopping floor door when the elevator car is located at a floor level near the stopping floor door. At other times, the landing doors may be opened by special service keys, in which case the serviceman can enter the elevator hoistway via the opened landing door.

Unlike the control panel known in the prior art, the door 4 of the control panel of fig. 1 does not have a separate locking hole, but instead the outer surface of the control panel is in the form of an unbroken machined surface that is part of the door frame. Thus, the control panel is better protected against vandalism. The unbroken outer surface also improves the appearance of the door frame resting against the floor door. The new type of control panel according to fig. 1 becomes possible thanks to the new type of locking mechanism shown in more detail below.

Fig. 2 illustrates a rear view of the control panel of fig. 1. Fig. 3 schematically shows the control panel of fig. 1 as seen from below. Fig. 4, on the other hand, schematically illustrates the locking mechanism of the control panel of fig. 1-3.

The control panel comprises a base 2, side walls 3', 3 ", a door 4 and a locking mechanism for locking and unlocking said door. The edge of the first side wall 3 'on the door side is bent outwards and the edge of the door 4 is correspondingly bent inwards so that the

bends

5A, 5B form a detachable hinge between the first side wall 3' and the door 4. In this case, a simple hinge mechanism is formed by the curved portions of the door 5B and the side wall 5A, by which structure the door can be rotated in a small space and the opened door can also be detached from the control panel 1 during work.

The control panel 1 has an elongated, inclined wall portion 3 "' which is located between the base 2 and the second side wall 3". The locking mechanism comprises an elongate rail 6 extending along a pin 25, the pin 25 being on the outer surface of the inclined wall portion 3' ″, said rail being moved in a vertical direction by a spindle motor 7 fixed to the rail 6. In the rail 6 is a groove 24 which moves along a pin 25 when the rail 6 is moved in the vertical direction.

The door 4 continues to bend from the

hinge point

5A, 5B over the doorway 14 to bend 4 'in the direction of the second wall portion 3 "and forward over the second wall portion 3" in the direction of the base so that a space 13 remains for the spindle motor 7 between the door and the inclined wall portion 3' ".

Longitudinally fixed to the rail 6 is a wedge-shaped brake 9 adapted to press against a wedge-shaped counterpart 10 in the door when the rail 6 is moved upwards. The corresponding part 10 of the detent is provided on the inner surface of the door in the portion 4' in the direction of its base. The upwardly moving stopper 9 wedges against the corresponding portion 10 and locks the door. At the same time, the door 4 is pressed tightly against the doorway 14 and the components of the control panel 1 are shielded from dust and moisture. The door is opened by moving the rail 6/brake 9 downwards so that the brake 9 is again separated from the counterpart 10.

The spindle motor 7 is controlled by an electronic control unit 12, which is located in the same space as the spindle motor 7. In other embodiments, however, the electronic control unit 12 is located in the inner space 21 of the control panel, in which case it is better protected from moisture and dust.

The electronic control unit 12 has three reed switches 16 on the circuit card, which are arranged in predetermined positions relative to each other. The electronic control unit 12 is configured to form control instructions for the spindle motor 7 to move the rail 6 when all three reed switches 16 are controlled to a conductive state. This occurs by bringing a key plate 17 close to the circuit card to the reed switch 16. Three permanent magnets on the key plate 17, the mutual positioning of which corresponds to the mutual positioning of the reed switch 16 on the circuit card (see fig. 5). When the permanent magnets 15 on the key plate are positioned close to the reed switches 16, the magnetic field of each permanent magnet 15 controls the contact of the reed switch 16 to conduct electricity when it is about to approach it.

Between the end of the control panel 1, the door frame 18 and the door 4, is a narrow gap via which the flat key 17 is pushed inside the door 4 close to the electronic control unit 12.

As is known in the art, the spindle motor 7 is an actuator in which the motion of the rotary motor becomes the linear motion of the spindle. The control method of the spindle motor 7 is known per se in the prior art and is not shown in more detail here.

The locking mechanism of the control panel 1 also comprises a manually operated latch. By turning the latch, the locking of the door 4 can also be opened in a situation where the spindle motor 7 is not powered. The latch comprises a rotating bolt or stud 11, the head of which is fitted into a jaw 19 in the key 17. The latch also comprises a stationary pin 8 which is pressed into a groove 23 in the bolt 11. The bolt 11 is asymmetrical with respect to the axis of rotation so that the pin 8 is withdrawn from the recess 23 when the bolt is turned, see fig. 6. The locking mechanism further comprises a tension spring 22 which pulls the bolt 11 downwards. When the bolt 11 is turned by the key 17, the pin 8 leaves the groove 23, the latch opens and the tension spring 22 pulls the bolt 11, the spindle motor 7 and, by the rail 6, downwards, in which case the locking of the control panel is opened. The bolts are arranged so that the jaws of the key 17 meet the head of the bolt 11 when the latch is closed, when the key is pushed from the gap between the door 4 and the end door frame 18 into the space 13 under the cover 4.

When the control panel has been opened from the manually operated latch, the latch must be reset before the electrical opening mechanism can be used again. This occurs by first lifting the bolt 11/spindle motor 7 back to the initial position against the tension of the spring 22 and thereafter by rotating the bolt 11 so that the pin 8 is pressed back into the groove 23 in the bolt 11.

In the embodiments described above, the control panel is shown as part of a door frame docking a floor door. In some other embodiments the control panel is disposed in the elevator hoistway, where it can be fixed e.g. to the wall of the elevator hoistway, to the guide rails of the car or counterweight, or in connection with the electric drive of the elevator.

Instead of reed switches, for example, hall sensors or magnetoresistive sensors may be used as the magnetic sensor 16. The number of magnetic sensors may vary; in principle, there may be 2-N units of them instead of three. It is essential that the number of magnetic sensors and their mutual positioning is identical to the permanent magnet 15 on the key.

Instead of the spindle motor 7, for example, a solenoid which causes a linear movement due to electric power, a stepping motor or a corresponding drive device may be used in the actuator.

The invention is not limited to be applied to the embodiments described above, but instead many variations are possible within the scope of the inventive concept defined by the claims.

Claims

1. Control panel (1) for an elevator, comprising a base (2), side walls (3', 3 "), a door (4) and a locking mechanism (6, 7, 8, 9, 10, 11) for locking and opening the door, characterized in that the locking mechanism comprises:

a catch arrangement (6) adapted to be movable between a locked position and a released position; and

a power controllable actuator (7) connected to the capturing device, the actuator being adapted to move the capturing device (6) in response to a wireless control signal,

said locking mechanism comprising a manually operated latch (8, 11) engaged with said actuator (7) and adapted to prevent in a first position and to allow movement of said catch device (6) towards said release position in a second position,

the latch comprises a rotating bolt, the head of which is fitted into the jaw in the key; and a stationary pin pressed into a groove in the rotating bolt, wherein the rotating bolt is asymmetric with respect to the axis of rotation such that the stationary pin withdraws from the groove when the rotating bolt is turned.

2. Control panel according to claim 1, characterized in that the latch (8, 11) is rotatable.

3. Control panel according to any of the preceding claims 1-2, characterized in that the catch device (6) is an elongated rail extending along a side wall of the control panel, which rail in longitudinal direction has a detent (9) adapted to engage with a corresponding portion (10) on the door (4).

4. Control panel according to any of the preceding claims 1-2, characterized in that the edge of the side wall (3') on the door side is bent outwards and in that the edge of the door (4) is correspondingly bent inwards so that the bend (5A, 5B) forms a detachable hinge between the first side wall and the door (4).

5. The control panel according to any of the preceding claims 1-2, characterized in that the actuator (7) comprises an electronic control unit (12) comprising an input circuit for wireless control signals.

6. The control panel according to claim 5, characterized in that said input circuit comprises a plurality of magnetic sensors (16) arranged at predetermined positions with respect to each other;

and in that the electronic control unit (12) is configured to form control instructions for the actuator (7) for moving the capturing device (6) when the measurements received from all the magnetic sensors (16) correspond to a predetermined value.

7. Control panel according to any of the preceding claims 1-2, characterized in that the actuator (7) is a spindle motor.

8. A key (17) for locking and unlocking the locking mechanism (6, 7, 8, 9, 10, 11) of a control panel according to any of claims 1-7.

9. The key according to claim 8, characterized in that the key (17) comprises a device (15) for forming a wireless control signal.

10. A key according to claim 8 or 9, characterized in that the key (17) comprises a counterpart (19) engaging the manually operated latch (11) around its rotation axis, and a handle (20), from which the latch (11) can be turned around its rotation axis.