JPS5945587B2 - Button switch for elevator call registration - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a button switch for registering calls such as elevator hall calls and car calls, and particularly relates to call registration in the event of a fire.

Operating a hall button installed in an elevator hall registers a hall call, and operating a destination floor button installed inside the car registers a car call, and the elevator car is often operated by these calls. Are known.

These landing buttons and destination floor buttons (hereinafter referred to as call registration button switches) include push-type ones and contact-type ones.

Suppressing type pushbuttons have been widely used in the past, and open and close contacts by utilizing the movement caused by pressing a pushbutton.

Furthermore, contact type devices can operate without pressing the button, for example by detecting the voltage induced when a human body touches the button and driving a relay.

This contact type is called a touch button, etc., and is novel in that it operates without pressing a button, and it has become popular among the general public and has become quite popular.

However, the contact type does not produce smoke or smoke when the building catches fire.
It is known that when exposed to a flame atmosphere, the ions contained therein create the same condition as if a person had touched it, causing it to malfunction.

This malfunction is extremely dangerous, and if the car responds to the registered call and stops on the fire floor, there is a risk that passengers will be exposed to fire and burn to death.

This invention was made in view of the above-mentioned danger, and includes a first detector that operates by contact and a second detector that operates by pressure. In the event of a fire, the call registration by the first detector is disabled and the call registration is performed by the second detector, so that the call registration will not malfunction even if a fire occurs. The purpose of this invention is to provide a button switch for

Hereinafter, an embodiment in which the present invention is applied to a hall button will be described with reference to FIGS. 1 to 4.

In Figures 1 and 2, 1 is a hall button (distinction between up and down calls is omitted), 2 is a front plate of the hall button, 3 is also a case, and 4 is made of transparent synthetic resin and is attached to the front plate 2. A cylindrical recess 4a in the center is fitted into the provided through hole.
5 is an electrode plate that is loosely fitted into the four parts 4a, 5a is an electrode rod that is connected to the back surface of the electrode plate 5 and extends inside through the support 4, and has an insulated tip. An elastic body such as rubber is disposed between the electrode plate 5 and the bottom of the recess 4a in the four parts 4a, 1 is a first detector attached to the case 3 and has a circuit described later in FIG. 3, and 8 is a first detector. 1, an electric wire connecting the detector 7 and the electrode rod 5a; 9, an insulating stand attached to the back of the support 4; and 10, one end is fixed to the insulating stand 9, and the central part contacts the tip of the electrode rod 5a. 11 is a contact fixed to the other end of the conductor piece 10; 12 is a fixed conductor rod that is erected on the insulating stand 13 attached to the case 3 and has the contact 11 at the tip; 14 is a contact fixed to the other end of the conductor piece 10; An electric wire is connected to one end and reaches an insulating stand 13, 15 is a socket installed in the case 3, and 16 is a call registration light installed in the socket.

In Figure 3, 20 to 26 are resistors, 27 is a field effect transistor, 28 is a diode, 29.30 is a capacitor, 3
1 is a transistor, 32 is an output relay, 33 is a fire detection relay contact which is normally closed and opens when it detects a fire occurring in the building, 34 is a DC power supply, and 35 is a bias AC power supply.

In Figure 4, (1) (issue is a DC power supply, 32a is a normally open contact of the output relay 32 in Figure 3, and 40 is a hall call registration relay (
(representatively shown), 40a and 40b are normally open contacts, 4
1 is a car position relay contact that opens when the car arrives at the floor where the hall call has been registered.

During normal times, if a person touches the electrode plate 5 with bare hands, the person L-5
- Impedance seen from 8-8 to 27 -35- Bias current passes through the ground.

This current is amplified by a field effect transistor 27, rectified and smoothed by a diode 28, a resistor 25, and a capacitor 29, 30, and is applied to a transistor 31.

As a result, the transistor 31 becomes conductive, and 34-33-
The output relay 32 is energized by the circuit 32-31-26-34, and the contact 32a4 is closed.

(1)-32a-4140-(The hall call registration relay 40 is energized by the circuit in the publication, and is self-maintained by closing the contact 40a.

At the same time, the contact 40b is also closed and the hall call registration light 16 is turned on, illuminating the support 4 to indicate that the call has been registered.

When the car arrives at this floor, the power relay contact 41
is opened, the registration relay 40 is deenergized, and the contacts 40a, 4
0b is opened and the registration light 16 is turned off.

Next, we will discuss the case where a fire breaks out at a landing.

Fire detection relay contact 33 is opened and output relay 32
is disconnected from the power supply 34 and the first detector 7 becomes inoperable.

This eliminates the need to register a landing call for a floor where a fire occurs due to a malfunction of the first detector due to water, flame, heat, etc., and it is possible to prevent a car from being called to a dangerous floor.

Further, when seeking rescue, when the electrode plate 5 is pressed, the elastic body 6 is compressed, the electrode rod 5a moves, and its tip presses the elastic conductive piece 10.

As a result, contact 11 comes into contact with (a)-11-4
1-40-(→ The registration relay 40 is energized, the call is registered, and the registration light 16 is lit.

The car responds to this call and is rescued.

Note that the second detector is effective both in normal times and in the event of a fire.

Therefore, even if the first detector does not operate due to gloves, etc. during normal times, it is possible to register a hall call by operating the second detector, which eliminates the hassle of having to take off gloves. can be avoided.

5 and 6 show other embodiments of the present invention, in which 4
5 is a pressure sensitive element provided at the position of the elastic body 6 in FIG.
6 is a second detector connected to the pressure sensitive element by an electric wire 47; 48 is a pressure sensitive detection circuit configured by the pressure sensitive element 45 and the like; 49 is a transistor; 50 is an output relay; the output relay 50 is normally open; The contact is used in place of contact 11 in FIG.

The rest is the same as in FIGS. 1 to 4.

When a person touches the electrode plate 5 with bare hands, the process is similar to that already described.

In addition, if the first detector is inoperable due to a fire, etc., if a little more force is applied to press the electrode plate 5, the pressure-sensitive detection circuit 4
8 generates a signal, transistor 49 becomes conductive and output relay 50 is energized.

As a result, the contact corresponding to contact 11 in FIG. 4 is closed, the registration relay 40 is energized, and the hall call is registered.

Although each of the above embodiments is applied to a landing button, it is obvious that the invention can also be applied to a destination floor button.

As explained above, the present invention includes a first detector that operates when a person touches a button and a second detector that operates when a person presses the button, and a call is made when at least the first detector operates. The button switch for elevator call registration, which is designed to emit a registration signal, is designed to prevent the first detector from generating a call in the event of a fire. In addition, since the second detector is enabled, people seeking rescue can use the second detector to generate a call and evacuate in the elevator.

[Brief explanation of drawings]

FIG. 1 is a front view of a hall button showing an embodiment of the elevator call registration button switch according to the present invention, FIG. 2 is a sectional view taken along the line ■-■ in FIG. 1, and FIG. The circuit diagram of the 1st detector (including the electrode plate), Figure 4 shows the 1st and 2nd detector.
FIG. 5 is a hall call registration circuit diagram using the hall button shown in the figure, FIG. 5 is a diagram corresponding to FIG. 2, and FIG. FIG. 1...Boarding button, 2...Top board, 3.
...Case, 4...Button support, 5.
...Electrode plate, 5a... Electrode rod, 6...
...Elastic body, 7...First detector, 10...
...Elastic conductive piece, 11... Contact, 20-2
6...Resistor, 27...Field effect transistor, 28...Diode, 29.30...
...Capacitor, 31...Transistor,
32... Output relay, 33... Fire detection relay contact, 34... DC power supply, 35...
... AC power supply for bias, 40 ... Hall call registration relay. In addition, the same parts or corresponding parts in the figures are indicated by the same reference numerals.

Claims (1)

[Claims] 1. A first detector that operates when a person touches the button, and a second detector that operates when a person presses the button, and at least registers a call when the first detector is activated. Fire call registration which operates when a fire is detected and prevents the first detector from generating a call registration signal and causes the second detector to generate a call registration signal. A button switch for registering an elevator call, characterized in that it is provided with a means.