JPH01275389A - Landing device for elevator at power failure - Google Patents

Abstract

PURPOSE:To prohibit rescue operation to a floor on which a burglarproof and fireproof shutter is installed by checking rescue operation to the floor through landing control means at power failure when it is detected that to which rescue operation is prohibited. CONSTITUTION:In an elevator where rescue operation prohibited floors are 2nd and 4th floors, when due to power failure, a riding elevator box 6 stops at the position between 3rd and 5th floors including the door zone of 4th floor and a landing unit 11 at power failure starts operation, unbalanced torque direction between the box 6 and a balance weight 7 set by load is selected and rescue operation is performed. In this case, the device 11 performs rescue operation toward 3rd or 5th floor at which rescue operation is enabled, ignoring 4th floor at which rescue operation is prohibited, according to a signal 13a of a rescue operation prohibited floor detection switch 13 for detecting a detection plate 14 of rescue operation prohibited floor. In this way it is possible to perform rescue operation by avoiding the rescue operation prohibited floor on which a burglarproof and fireproof shutter and the like are installed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to an elevator landing device during a power outage that performs a rescue operation of an elevator to the nearest floor when a power outage occurs.

(Prior technology) Elevators in small and medium-sized buildings such as apartments and condominiums that do not have in-house power generation equipment are equipped with rescue operation devices to prevent passengers from being trapped in the elevator car in the event of a power outage. Power outage landing devices have become widely adopted.

This power outage landing device uses battery power to operate the elevator drive electric motor to the nearest floor using either a part of the control device that operates the elevator normally or a separate control device when a power outage occurs. The system was designed to carry out rescue operations.

Various proposals have been made regarding rescue driving methods, but
An example of the operating method is shown below.

(b) If a power outage occurs in the landing zone of an elevator passenger (within approximately 20 meters from the normal landing position), only the door opening operation will be performed at that position to guide passengers out of the boarding area.

(b) If a power outage occurs in the zone where the elevator passenger door allows the door to open (door zone: within approximately 200 to 300 I from the normal landing position), the power outage will occur in the direction of the normal landing position (for example, if it is 100+m above the level, DOWN Driving to level 1
If it is 00mm, drive at low speed (U I) operation), and when it reaches the landing zone shown in (a), release the brake, stop, and open the door to complete the rescue operation.

(c) When the elevator car stops between floors, select the unbalanced torque direction of the car and counterweight determined by the loading view (the direction in which the car corner moves easily), and
The vehicle operates at a speed slightly higher than the speed within the door zone described in (b), and when it reaches the door zone of the rescue floor, the speed is reduced and the rescue operation is completed in the same way as the operation described in (b).

The first landing zone and door zone described in (a) and (b) above can be known, for example, by the relative positional relationship with a switch installed in the passenger seat and a detection plate installed in the hoistway. Alternatively, the selection of the driving direction based on the unbalanced load described in (c) can be achieved by installing a load switch on the rider and setting the operating point of the switch to the equilibrium point of the rider and the counterweight. can be known from the operating status of the load switch.

(Problems to be Solved by the Invention) In elevators that service multiple floors, there are cases where it is required to prohibit elevator service to specific floors and prohibit rescue operations from the viewpoint of building use and security. be. How many points give a concrete example?

■ If there is a floor where security/fire prevention shutters are installed, and rescue operations to that floor are prohibited ■ If a switch is installed that prohibits elevator service to a specific floor depending on the time of day or day of the week, and when the switch is activated, ■ When both ■ and ■ are required If there are more requirements, the landing device during power outage must take measures to prevent rescue operations to prohibited floors. .

SUMMARY OF THE INVENTION An object of the present invention is to provide an elevator landing device during a power outage that is suitable for a case where it is required to prohibit rescue operation of an elevator to a specific floor.

[Plantation of invention]

(Means for Solving the Problems) A first invention provides a power outage landing control means for carrying out a rescue operation of an elevator to the nearest floor in the event of a power outage, and a rescue operation for floors other than the top and bottom floors. a prohibited floor setting means for setting a prohibited floor for rescue operation; a prohibited floor detecting means for detecting a prohibited floor; The present invention is characterized by comprising a rescue operation prevention means for inhibiting a rescue operation by the landing control means.

The second invention provides a power outage landing control means for performing a rescue operation of an elevator to the nearest floor determined by the car's loading load when a power outage occurs, and a rescue operation that sets a floor where rescue operation is prohibited for the top floor or the bottom floor. A prohibited floor setting means; a prohibited floor detecting means for detecting a prohibited floor; The present invention is characterized by comprising a rescue operation direction selection means for selecting a rescue operation to the nearest floor.

(Operation) In the first invention, when a power outage occurs, if the nearest floor is not detected as a prohibited floor, a normal rescue operation is performed to the nearest floor. If this happens, the elevator recognizes the prohibited floor as being between floors, and performs a rescue operation ignoring that floor.The elevator operates to a floor other than the prohibited floor.

In the second invention, when a power outage occurs when the top floor or the bottom floor is a prohibited floor, the direction of rescue operation is not selected based on the car load, and when the top floor is a prohibited floor, A descending operation is performed, and if the lowest floor is a prohibited floor, an ascending operation is performed.

(Example) Examples of the first invention will be described below.

Fig. 1 shows an embodiment of the first invention. In Fig. 1, the elevator service floors are from the 1st floor to 5M, and Fig. 6 shows the case where the prohibition of rescue operation is on the 2nd and 4th floors. Junior high school 1~
5 is the position of each floor; 6 is an elevator passenger; 7 is a counterweight; 8 is a main rope connecting the elevator passenger and the counterweight via a sheave 9; 10 is a winding for driving the elevator;
1 is a power outage landing device composed of a battery, a control device, etc.; 12.13 is a position detector installed in the hoistway on the 2nd and 4th floors; 12a and 13a are respective detection signals; 14 Position detector 12.13 installed on the passenger seat
The detection plates 15a and 16a are signals from the door zone detector 15 and the landing zone detector 16, respectively.

In FIG. 1, the door zone signal 15a is turned on at ±200 m for each floor landing position, and the landing zone signal 16a is turned on at ±20 mm. The detection effective length of the detection plate 14 for detecting rescue operation prohibition technique is ±200a of the door zone.
Set it so that it can detect the same or wider range than m,
The detectors 12 and 13 are installed on the hoistway side so that the passenger seat 6 is the normal landing position on the second or fourth floor and is centered on the detection plate 14. In other words, if the length of the detection plate is L=500 m, it will be ±250 m from the landing position, and a wider range than the door zone ±200I can be detected.

FIG. 2 shows the rescue operation prohibition dark signal 12a shown in FIG.

13a, door zone signal 15a, landing zone signal 1
6a is used to prevent a rescue operation to a specific floor (the second and fourth floors in FIG. 1).

In FIG. 2, 111 to 114 are logic operation circuits, and 11
1 is OR logic, 111 is inverted logic (INV), 11
3°114 is AND logic. External signals 12a, 13
a, 15a.

16a is inputted as "1" when it is on and "0" when it is off.

115 is a control circuit for receiving this logic signal and operating the landing device 11 during a power outage.

If the rescue operation prohibition dark signals 12a and 13a are not connected, the output 111a of the OR logic 111 is “0” and inverted (IN
V) Output 112a of logic 112 becomes 1", outputs 113a, 114a of AND logic 113, 114 are determined by door zone signal 15a1 landing zone 16a,
The control circuit 11 performs the normal rescue operation as described in (a), (b), and (c).

When either the prohibited floor signal 12a or 13a is turned on, O
The R logic output 111a becomes 1'', the inversion (INV) logic output 112a becomes "0", and the AND logic output 113a.

114a is forcibly set to "0". That is, in the zone where the rescue dark signal 12a or 13a is on, the door zone signal 15a and the landing zone 16a are ignored, resulting in a detection state equivalent to a passenger stopping at an intermediate floor.

According to the embodiment shown in FIGS. 1 and 2.

For example, if a power outage occurs and the passenger is stopped between the 3rd and 5th floors, including the door zone on the 4th floor, and the power outage landing device starts operating, the operation in mode (c) above is performed; It is possible to ignore the 4th floor, which prohibits rescue operation, and perform rescue operation towards the 3rd or 5th floor, which is a floor where rescue operation is possible.

In Figures 1 and 2, when the rescue driving prohibition technique is set,
Always shows how to prevent a rescue drive to that floor.

On the other hand, FIG. 3 shows another embodiment of the first invention in which the rescue operation is prohibited only when a non-stop switch or a crime prevention/fire prevention shutter switch installed in the passenger compartment or monitoring room is activated. Shown below.

The figure shows a case where rescue operation is prohibited only when the switch is activated on the second and fourth floors, similar to that shown in FIG. 1.

In the figure, 17.18 is the second floor non-stop switch, security/fire shutter interlock switch, 19.20 is the fourth floor non-stop switch, crime prevention/fire shutter interlock switch 17a-2
0a is each operation detection signal. All switch signals are on when activated.

116 to 119 are logic operation circuits, 116, 117
is an OR logic, and 118 and 110 are an AND logic.

For example, when the second floor non-stop switch 17 is activated, the OR logic output 116a becomes "1", and the AND logic output 118a becomes "1".
is determined by the state of the rescue operation prohibition detector 12 on the second floor. That is, the six signals 118a on which the detector signal 12a effectively acts are input to the OR logic 111, which operates in exactly the same manner as in FIG. The same applies when the crime prevention/fire prevention shutter interlock switch 18 on the second floor is activated and on the fourth floor.

Furthermore, if none of the switches 17 to 20 are activated, the OR logic outputs 116a and 117a will be "0", and the AND logic outputs 118a and 119a will also be "0", regardless of the position of the first power, door zone detection and landing. Since zone detection is performed, rescue operations to all floors are possible.

Various zone detection methods can be considered in addition to the methods shown in the above embodiments, but a device capable of detecting a zone equivalent to or wider than the door zone is installed on each floor where rescue operation is possible. That's fine.

If rescue operation is prohibited on a specified floor at all times as shown in FIG. 1, the detector and detection plate shown in FIG. 1 may be replaced with a boarding point or a hoistway. Further, for various zone detections, if there is a device that can individually detect the zones of each floor, the signals used for normal operation of the elevator may also be used.

Furthermore, the logic circuits shown in FIGS. 2 and 3 can also be constructed from relay circuits, computer circuits, or the like.

However, within the door zone of a floor where rescue operation is possible, the vehicle must be operated in the direction of the landing position, as described in (b).

Examples of the second invention will be described below.

FIG. 4 shows an embodiment of the second invention. In FIG. 4, the elevator service floors are five floors from the 1st floor to 5'M, and the floor where rescue operation is prohibited is the top floor, the 5th floor. Showing 0
In the figure, 1 to 5 are the positions of each floor, 6 is the elevator passenger and 7 is the hanging weight, 8 is the main rope connecting the elevator car and the lifting weight via the sheave 9, and IO is the hoisting motor for driving the elevator. , 11 is a power outage landing device consisting of a battery, a control device, etc., 12 is a position detector installed in the hoistway on the 5th floor, 12a is its detection signal, and 14 is a position detector installed in the passenger car. The detection plates 15a and 16a for operating the door zone detectors 15. A signal from the landing zone detector 16 (details are omitted as it is well known), 17 is a load detection switch installed in the car, 1
7a is its detection signal.

In FIG. 4, it is assumed that the door zone detection signal 15a is turned on at ±200 rrta for each floor landing device, and the landing zone detection signal 16a is turned on at ±20 inches. The detection effective length of the detection plate 14 for detecting floors where rescue operation is prohibited is set to be the same as or wider than the door zone ±200 m, and the detector 12 is set so that it can detect a wider range than the above door zone ±200 m. It is installed on the hoistway side so as to be centered on the detection plate 14 at the normal landing position. In other words, the detection plate is L-”500nvn
If this is the case, there will be ±250 aa for one landing position, and a wider range than the door zone can be detected by ±200 aa.

Further, the load detection switch 17 is set to be turned on when the load on the rider heel 6 is equal to or higher than the load balanced with the counterweight 7.

FIG. 5 shows the configuration of a circuit for regulating the direction of rescue operation between floors and from the rescue operation prohibition zone using the rescue operation prohibition dark signal 12a, door zone signal 15a, landing zone signal 16a, and load switch signal 17a shown in FIG. .

In FIG. 2, 211 to 219 are logic operation circuits, and 21
4 is OR logic, 211, 216, 217 are inversion (INV
) logic, 212, 213, 215, 218, 219 are AND logic, external signal is on and input 111", off is "
0”.

220 is a downward operation forced selection switch (normally open switch),
221 is a forced upward operation selection switch (normally closed switch).

122 is a control circuit for operating the landing device 11 during power outage in response to the above logic signal.

Unless the rescue operation prohibition dark signal 12a is connected.

The output 211a of the inversion (INV) logic 211 becomes "1", and the outputs 212a, 213 of the AND logic 212, 213
a is determined by the door zone signal 14a1 and the landing zone 15a.

When the inhibition dark signal 12a is turned on, the inversion (INV) logic output 211a becomes "-0", and the AND logic output 212a
.

213a is forcibly set to "0". In other words, in the zone where the rescue operation prohibition dark signal 12a is on, the door zone signal 1
5a, the landing zone signal 16a is ignored, resulting in a detection state equivalent to the car stopping at an intermediate floor.

Furthermore, as shown in FIG. 4, the fifth floor, which is the top floor, is a floor where rescue operations are prohibited, and if the vehicle stops between the fourth and fifth floors, a descending operation must be performed. Therefore, if the top floor is the floor where rescue operation is possible, descending operation forced selection switch 2
When the signal to 20 is turned on (the contact is closed), OR logic 2
The output 214a of 14 is the signal 16 of the load detection switch 16.
It becomes ``1'' regardless of a, which means that the load detection switch 17 is on, that is, the descending operation selection mode in which the live load exceeds the equilibrium load (in the direction where the rider is heavier than the counterweight)
becomes the same as If the signal to the upward operation forced selection switch 221 is off (the contact is closed), the signal 21 of the AND logic 215
5a is also "1", and the inverted signal 216a of the output 212a
is 1", that is, between floors including the floor detection zone where rescue operation is possible (
outside the door zone), the output 219a of the AND logic 219 becomes iz 1 t+, and this signal is input to the control circuit 122 as a descending operation command signal.

According to the embodiment shown in FIGS. 4 and 5, for example,
If a power outage occurs and the passenger car stops in the 5th floor door zone or between the 4th and 5th floors, the downward operation forced selection switch 220
If you turn on, you can perform a descending operation regardless of the load and head to the 4th floor, which is the floor where rescue operation is possible.

Figure 4 shows the case where the top floor is a floor where rescue operations are prohibited.
If the lowest floor is a floor where rescue operation is prohibited, the forced upward operation selection switch 22 is used instead of the downward operation forced selection switch 220.
If the signal to 1 is turned on (the contact is open), the ascending operation command signal 218a is selected in exactly the same way. In addition, in FIG. 4, if rescue operation is always prohibited on a specified floor, the detector 12 and detection plate 14 shown in the figure may be replaced with a passenger compartment or a hoistway.

FIGS. 4 and 5 show a method of always preventing rescue operations to a floor where rescue operations are prohibited when a floor is set.

In contrast, another embodiment of the second invention is provided in which the prohibition of rescue operation and the forced selection of a driving method are performed only when a non-stop switch and a crime prevention/fire prevention shutter switch provided in the passenger car or monitoring room are activated. It is shown in FIG. In the figure, 18
19 is the top floor nonstop switch, and 19 is also the top floor security switch.
Fire shutter synchronized switches 18a and 19a are operation detection signals, respectively.

All switch signals are assumed to be on when activated, and in the case of either the non-stop switch or the security/fire prevention shutter synchronized switch, the switch signals will be deleted.

Elements in the figure that are the same as those in FIG. 5 are indicated by the same numbers.

223 to 227 are logical operation circuits;
is OR logic, 224 and 225 are AND logic, and 226 is inversion (INV) logic. OR when the non-stop switch 18 or the security/fire shutter interlock switch 19 is activated.
The logic output 223a becomes "1", and the AND logic output 22
4a is determined by the state of the rescue operation prohibition detector 12 on the 5th floor. In other words, the rescue operation prohibition detector 12 is enabled only when the switch signal 18a or 19a is on.

Further, the forced downward operation selection switch 220 becomes valid only when the switch signal 18a or 19a is on (223a is “1”), and the AND logic output 225a becomes “1”, and the forced upward operation selection switch 220 becomes effective. 221 is similarly inverted (
INV) O only when logic output 226a becomes “0”
The R logic output 227a becomes "O" and becomes valid.

A relatively simple configuration prevents rescue operation when either the top floor or the bottom floor is a floor where rescue operation of the landing device is prohibited in the event of a power outage due to elevator failure or operation of crime prevention/fire prevention shutters. be able to. Elevators provide service to the terminal floors.

This function is effective when the security/fire prevention shutters are activated and it is not desirable to carry out a rescue operation to that floor.

Furthermore, by preventing rescue operations on prohibited floors in synchronization with the operation of the non-stop switch and the crime prevention/fire prevention shutter synchronization switch, rescue operations can be carried out in the same way as in the past during normal times.

〔Effect of the invention〕

According to the present invention, it is possible to provide an elevator landing device during a power outage that makes it possible to prevent rescue operations to a certain floor when prohibition of rescue operations to that floor is required. .

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram showing an embodiment of the first invention. Figures 2 and 3 are circuit diagrams showing an example of a specific configuration of the power outage landing device, Figure 4 is a configuration diagram showing an embodiment of the second invention, and Figures 5 and 6 are FIG. 2 is a circuit diagram showing an example of a specific configuration of the power outage landing device. 1 to 5...stop floor, 6...car, 7...
Hanging weight, 8... Main rope, 9... Sheave,
11... Landing device during power outage, 12.13...
- Rescue operation prohibited floor detection switch, 14... Rescue operation prohibited floor detection plate, 15... Door zone detection switch, 16... Landing zone detection switch, 17... Load detection switch. Agent Patent Attorney Yudo Ken Chika Ken Daishimaru Figure 1 Figure 2 Figure 3 Figure 4

Claims (2)

[Claims] (1) A power outage landing control means for operating the elevator to the nearest floor in the event of a power outage, and a rescue operation prohibited floor setting means for setting floors other than the top and bottom floors where rescue operations are prohibited. , a prohibited floor detection means for detecting the prohibited floor; and a rescue operation for preventing the rescue operation by the power outage landing control means to the floor when the prohibited floor is detected by the prohibited floor detection means. An elevator landing device during a power outage, comprising operation prevention means. (2) A power outage landing control means that performs a rescue operation of the elevator to the nearest floor determined by the carrying load of the car in the event of a power outage, and a floor where rescue operations are prohibited, setting the top or bottom floor as a floor where rescue operations are prohibited. a setting means; a prohibited floor detecting means for detecting the prohibited floor; and when a prohibited floor is detected by the prohibited floor detecting means, the nearest prohibited floor in the opposite direction to the prohibited floor is set, regardless of the car load. An elevator landing device at the time of a power outage, comprising a rescue operation direction selection means for selecting a rescue operation to a floor.