JPS6027625B2 - elevator door safety device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to an elevator door safety device.

Recently, elevators installed in high-rise residential buildings are often used only by infants or children, and while waiting for the Hata basket to arrive, these infants or children approach the Hata basket door.
They are often leaning against each other or resting on their hands.

When Hata Kago arrived at such a time and Hataba's door was opened, his hand and arm were caught between Toyo's door and the doorway frame.
There is a risk of injury. To explain the conventional elevator shown in FIGS. 1 and 2, 1 and 1' are sliding doors that open and close the entrance 2, doors that open and close in opposite directions from the center of the entrance 2, and 3 are sliding doors that open and close the entrance 2. The entrance/exit frame 3a and 3b are the side frames that constitute the entrance/exit frame 3, and there is a space between them and the front door 1, 1' that does not hinder the opening and closing of the front door 1, 1'. A gap g is provided.

4 is Hataba, 5 is the elevator call button, 6 is the draft basket, 7
, 7' are car doors consisting of sliding doors that open and close the entrance 8 of the Qinba car 6, and similarly to the Qinba doors 1 and 1', they open and close from the center of the entrance 8 in opposite directions.

9 is a passenger waiting for the arrival of the Hata basket.

Suppose that passenger 9, who is about to board Hata basket 6, operates the dowel and, while waiting for Naga basket 6 to arrive, approaches Hata bar door 1 abnormally and touches Hata bar door 1.

When the Qin basket 6 arrives after a certain period of time, the Hataba door 1 is opened at the same time as the Taiba door 1 without any prior notice by a drive machine (not shown) installed on the mill basket 6 side. As shown in FIGS. 1 and 2, the hand of the passenger 9 gets caught in the gap g between the doorway frame 3 and the side frame 3a as the door 1 moves. Furthermore, since there is no device to detect when a hand or arm is caught between the door 1 and the side frame 3a, the drive mechanism continues to open the door, causing the risk of injury. was there. This invention was made to prevent such accidents.If a passenger who is waiting for the arrival of a Hata basket abnormally approaches the Hataba door, this invention is detected and the passenger is sent to the Hataba door. This prevents the door from opening until you are within a safe distance from the door.

Next, an embodiment of the present invention will be described with reference to FIGS. 3 to 6. In the figure, the same parts as in FIGS. 1 and 2 are given the same reference numerals.

In addition, 10 is a known mat switch placed on the Habata 4 in front of the Habata doors 1 and 1' (an abnormal electrical contact is provided inside, and when a load is applied thereto, they come into contact with each other, causing an electrical circuit. is formed), and its width W is determined to be the access limit of an infant or child's hand, so that the door 1, 1' cannot be reached without riding on the mat switch 01. FIG. 6 is a circuit diagram of the main part of the elevator for stopping the elevator on the third floor.

In FIG. 6, 21 is the normally open contact of the mat switch of IFL (FL indicates the floor of a high-rise building), 22 is the normally open contact of the mat switch of bait L, 23 is the normally open contact of the mat switch of bait L, , 31F to 33F are coils that are excited when the normal contacts 21 to 23 are turned on, 31Fa to 33Fa, and 3
1Fb to 33Fb are normally closed and normally open contacts that turn OFF or ON, respectively, when the coils 31F to 33F are energized, 41F to 4
3F is a time relay coil, 41Fa to 43Fa are normally open contacts, and 51 is Hataba door 1, 1' and cage door 7, 7.
A driving machine 52 for opening and closing ' is an alarm installed on the side of the milling field 4 and emits light or sound when activated. 53 is the notification device installed on the side of Qin car 6, 54 is the nearest floor operation command Hishihito, 61a
~63a: 61b~63b and 61c~63c are normally open contacts of an elevator position detection device (not shown), and when the car arrives at the destination floor, only the contacts of the corresponding floor are turned ON.

Also, (10) and (1) are power sources. Passenger 9 is now IF
After operating call button 5, by the time Hata basket 6 arrives,
If someone approaches the landing door 1 abnormally and steps on a part of the mat switch 10, the contact 21 closes and a circuit of power supply (10) → contact 21 → coil 31F → coil 41F → power supply (1) is formed. , the contact 31Fa is OFF, the contact 31Fb is ○N, a circuit of power supply (10) → bush point 31Fb → alarm 52 → power supply (1) is configured, and the alarm 52 installed on the Hataba 4 side is activated. and asks Passenger 9 to leave Hataba's door 1.

Furthermore, when the draft car 6 arrives at IF', the contacts 61a, 61b and 61c of the position detector are turned on, so the circuit of power supply (10) → contact 31Fb → contact 61a → annunciator 53 → power supply (1) is configured. Then, the notification device 53 in the Hata car 6 is activated, and a notice is sent to the Naga car 6 that the door will not be opened at this time because a passenger is abnormally close to the Hata car door 1, 1'. . Furthermore, since the contact point 31Fa is OFF at this time, the power supply to the drive unit 51 is cut off and the door does not open, so the safety of the passengers 9 is ensured. In addition, the contact 41Fa is turned ON by a known timer when a predetermined time period elapses after the coil 41F is excited, for example, the time required for the passenger to leave the door 1 of the Qinyu, so that the power supply (10) → contact 6
1b → Contact 41Fa → Nearest floor operation command device 54 → Power supply (
The circuit 1) is configured, and the Qin car 6 moves to the nearest floor and performs the door opening operation, so that it is possible to prevent a decrease in the elevator's carrying efficiency. Although the above embodiment describes the case where the passenger 9 is on the IF, the present invention can operate in the same manner even when there is a passenger on another floor, that is, on the floor or on the floor. A detailed explanation of this point will be omitted. Further, in the above embodiment, a mat is placed in the Hata field, and the door is prevented from opening by detecting that a passenger waiting for the Hata basket to arrive at the Hata field abnormally approaches the door of the Hata field. However, if you place a similar mat switch on the floor in front of the car door of a Hata car, you can prevent accidents such as hands or arms getting caught between the car door and the car entrance/exit frame. Furthermore, in the above embodiment, a mat switch was used as the detection object for the passenger, but the same effect can be obtained by using a device (for example, a detector using ultrasonic waves or light) that detects when a passenger approaches the door abnormally. can get.

[Brief explanation of the drawing]

Figure 1 is the front view of the elevator station, Figure 2 is the front view of the elevator station.
3 is a front view of the elevator station showing an embodiment of the present invention, and FIG. 4 is a sectional view taken along the Rolo line in the figure.
-W line, FIG. 5 is a cross-sectional view taken along line V-V in FIG. 4, and FIG. 6 is a stop diamond circuit diagram of the elevator on the third floor. 1, 1'... Door of the station, 3... Entrance/exit slot, 10... Mat switch, 31F-33F; 41
F~43F...Coil, 51...Driver,
52... Alarm, 53... Announcer, 5
4...Nearest floor operation command device. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6

Claims (1)

[Scope of Claims] 1. A detection device installed near at least one of an elevator landing door and a car door to detect abnormal approach of a passenger to the door and generate an electric signal; An elevator door safety device comprising: a device that responds to the door opening operation of the door; 2. A patent claim in which a device for preventing the door opening operation includes an electromagnetic coil that operates in response to a detection device, and a contact that is coupled to the electromagnetic coil and controls a drive machine that opens and closes the door. The elevator door safety device described in item 1. 3. The elevator door safety device according to claim 1, wherein the detection device is a matsu switch placed near the door. 4. A detection device installed near at least one of the elevator landing door and the car door to detect abnormal approach of a passenger to the door and generate an electric signal; An elevator door safety device comprising: a device for preventing a door opening operation; and a display device for indicating that the opening operation of the door is blocked in response to the electrical signal. 5. A detection device installed near at least one of the elevator platform door and the car door to detect abnormal approach of a passenger to the door and generate an electric signal; a device that prevents the door opening operation; and a time response device that responds to the electrical signal and causes the car to respond to another call signal from the nearest floor operation command device after a predetermined period of time has elapsed since the generation of the electrical signal. Elevator door safety device with.