JPH11292419A - Crime prevention device for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a crime prevention device for elevators capable of preventing an abnormal state such as a crime in a car. SOLUTION: A crime prevention device for elevators is provided with impact detecting devices 1a, 1c for generating output corresponding to the impact strength and an impact judging device 2 for generating an output signal when the output from the impact detecting device exceeds a specified value. Further, a device 5 for automatically switching a signal 2a outputted when an abnormal impact is detected in the car, and an interphone to a telephone-conversational state, is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a security device for an elevator.

[0002]

2. Description of the Related Art Conventionally, as a means for preventing crime or accidents in an elevator beforehand, in an apartment or condominium, it is generally practiced to stop operation on each floor at night. In addition, once a crime or accident is about to occur, a device will be installed to detect screams and abnormal noises in the car. There is also proposed a method in which the operation is not taken care of.

However, in the conventional system, for example, in the first example, when a crime occurs, it is necessary to escape on its own unless there is another person at the landing, and the elevator is wasted in normal times when no crime occurs. It is unreasonable to start and stop. In the second example, when a crime occurs, an operation of screaming is required. Thus, if you are involved in a crime in an instant, you may not have time to scream. In such a case, there is a problem that a crime or an accident cannot be prevented with the above-described device alone.

To solve such a problem, Japanese Patent Laid-Open Publication No.
As disclosed in Japanese Patent Application Laid-Open No. 8-100078, a device for detecting an impact is installed on a cab panel or a floor of a car to detect an impact of the cab panel or the car floor when a crime occurs, and to lift the elevator. It has been proposed to stop at a lower floor and notify the outside of the occurrence of an abnormal situation.

[0005]

In the above-mentioned prior art, when a crime or accident occurs, the elevator is stopped at the nearest floor and the occurrence of an abnormal situation is reported to the outside. If you do not press the call button, you cannot ask for help or report the situation in the car. In addition, there is a problem that an outsider such as a manager's office cannot grasp the situation after receiving the report and cannot take appropriate processing.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems. In the event that a crime has occurred, the internal situation can be communicated to the outside, and at the same time the internal situation can be communicated to the outside. An object of the present invention is to provide an elevator security device capable of preventing the occurrence of a catastrophic event by making it possible to grasp the internal situation.

[0007]

SUMMARY OF THE INVENTION An object of the present invention is to provide an impact detection device which is provided in an elevator car and emits an output according to the intensity of an impact, and an output when an output from each impact device exceeds a predetermined value. This can be achieved by providing an impact determination device that emits a signal, and automatically setting the interphone in the car to a call state by an output signal from each impact determination device.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a block diagram showing the overall configuration of the present invention. In FIG. 1, reference numerals 1a to 1c are provided in a car, and an impact detecting device for outputting an output corresponding to the intensity of an applied impact. Is an impact judging device for judging whether or not the impact is abnormal. When the impact is abnormal, an output signal 2a is issued to the safety device. The safety device 10 is, for example, the nearest floor stop device 3 or the notification device 4 to the outside. However, if the safety device 10 is to secure passengers, a display device for notifying that a crime has occurred in the car, Any device such as an alarm device, a device for switching to stop operation at each floor, or a combination thereof may be used. Reference numeral 5 denotes a device for automatically setting the intercom to a talking state simultaneously with the operation of the safety device.

FIG. 2 is a view showing an attached state of the impact detecting devices 1a to 1c. Reference numeral 20 denotes an elevator car, and reference numeral 30 denotes a main rope. In this example, the impact detection device is attached to the side of the car 20 by two.
One is attached to the floor.

FIG. 3 shows an example of a circuit of the impact judging device 2, wherein 9a to 9c are signals from the impact detecting devices 1a to 1c,
6 is an adder for adding the input signal and outputting the value as a signal 6a, 7 is a reference value generator for generating a reference signal 7a, 8 is the signal from the reference value generator 7 and the magnitude of the signal from the adder 6 Is a comparator that generates an output when it is larger than a reference value.

Next, the operation of the above configuration will be described.
Now, it is assumed that an abnormality has occurred in the car 20, and that the passenger has hit the side of the car 20 strongly. At this time, basket 20
The impact detectors 1a and 1c attached to the side of the radiator emit outputs 9a and 9b according to the degree of the impact, and the impact detector 1c attached to the floor also depends on the intensity of the impact applied to the floor. An output 9c is issued. The adder 6 calculates the addition of the output signals 9a to 9c from the shock detection devices and outputs the value as a signal 6a. The comparator 8 receives the input signal 6a
And the reference signal 7a. When the input signal 6a becomes larger, an output signal 2a is generated. The nearest floor stop device 3, the notification device 4, and the intercom automatic communication device 5
The elevator is stopped at the nearest floor according to the output signal 2a from the terminal, an abnormality is notified to the outside, and the intercom is automatically set to the talking state.

[0013]

According to the invention configured as described above, when an abnormal situation occurs in the car, a communication method with the outside is automatically secured at the same time as the notification to the outside, so that even if the call button of the intercom cannot be pressed, the inside of the car cannot be pressed. It is possible to provide a device that can ask for help or grasp the situation inside the car from outside.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of the configuration of the present invention.

FIG. 2 is a diagram illustrating an attached state of an impact detection device.

FIG. 3 is a block diagram illustrating details of an impact determination device.

[Explanation of symbols]

 1a to 1c Impact detection device 2 Impact determination device 2a Signal output at abnormal impact 3 Nearest floor stop device 4 Notification device 5 Intercom automatic intercom device 6 Adder 6a Adder 6a Calculation result 7 Reference value generator 7a Reference value 8 Comparator 9a-9c Output signal from impact detector 10 Safety device 20 Basket 30 Main rope

Claims (1)

[Claims] An impact detection device is provided in an elevator car and emits an output according to the intensity of an impact, and an impact determination device that issues an output signal when an output from each impact device exceeds a predetermined value. A security device for an elevator, wherein an intercom in a car is automatically brought into a talking state by an output signal from each impact determination device.