JPH0986844A - Protection device for elevator door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To more reliably prevent a bogie from colliding with a safety shoe. SOLUTION: A protection device 13 which projects toward the center side of the door from the position of a safety shoe and is elastically deformed is mounted on the side wall of a hall three directional frame 3 of the side where the safety shoe is positioned when a door is opened. A protection switch 15 which is activated by the deformation of the protection device 13 is mounted in the protection device 13 and, when the protection switch 15 is turned on, a warning buzzer is sounded.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator entrance / exit protection device for preventing damage to a safety shoe (contact rod) provided on a car door.

[0002]

2. Description of the Related Art FIG. 5 is a front view showing an example of a landing of a conventional luggage elevator. In the figure, 1 is a landing floor,
2 is a landing wall, 3 is a landing frame that is provided on the landing wall 2 and defines an entrance / exit 4, and 5 is a safety shoe that is provided on the car door to prevent passengers or carts from being caught in the car door. , 6 are caution marks provided on the left and right side walls of the landing three-way frame 3 so as not to collide the bogie with the landing three-way frame 3 and the safety shoe 5, and are generally black and yellow striped patterns (tiger pattern). ) Is used.

In the above-mentioned landing, when the trolley is put in the car, the trolley is usually put in the center of the doorway 4, but it may be put in the left or right side. In such a case, if a truck is inserted near the side where the safety shoe 5 is located (left side in the figure), the truck collides with the left side wall portion of the landing three-way frame 3 or the safety shoe 5, and the safety shoe 5 Or the arm (not shown) that supports it or the like may be damaged.

If the safety shoe 5 or the arm is damaged in this way, it takes a long time from arranging the parts to loading and mounting the parts, and the operation of the elevator must be stopped for a long time. In order to prevent this as much as possible, a warning mark 6 is provided on the three-way frame 3 of the hall to call attention to the person who uses the cart.

[0005]

In the conventional baggage elevator as described above, a caution mark 6 is provided on the three-way landing frame 3 as means for preventing the collision of the trolley with the safety shoe 5.
However, when the luggage on the trolley is in the way and the caution mark 6 is hard to see (in such a situation, the track of the trolley is particularly likely to deviate from the center of the doorway 4).
In addition, when the surrounding illumination is dark, the caution mark 6 may be missed, and there is a problem that it is not possible to sufficiently prevent the collision of the trolley with the safety shoe 5.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and provides an elevator entrance / exit protection device which can more reliably prevent a collision of a truck with a safety shoe. With the goal.

[0007]

An elevator doorway protection device according to a first aspect of the present invention is provided on a side wall portion of a three-way landing frame on a side where a safety shoe is located when the door is opened, and when the door is opened. It is provided with an elastically deformable protector projecting toward the center of the doorway from the position of the safety shoe.

An elevator entrance / exit protection device according to a second aspect of the present invention includes a protection switch which is provided in the protection tool and is operated by deformation of the protection tool, an alarm buzzer connected to the protection switch, and a protection switch. And a power supply connected to the alarm buzzer via.

An elevator doorway protection device according to a third aspect of the present invention includes a car detection switch which is connected between an alarm buzzer and a power source and which is brought into a conductive state when a car stops on a floor provided with protective equipment. Be prepared.

In the elevator entrance / exit protection device according to the fourth aspect of the present invention, as the protection switch, a rubber switch having a pair of flexible normally open contacts arranged in parallel to each other is used.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an example of an elevator entrance / exit protection device according to the present invention, and FIG. 2 is II- of FIG.
It is an arrow sectional view which follows the II line.

In the figure, 11 is a mounting base fixed to the side wall of the landing frame 3 on the side where the safety shoe 5 (FIG. 5) is located when the door is open, and 12 is a plurality of mounting bases fixed to the mounting base 11. The fixed shaft 13 is a protector fixed to the side wall of the three-way frame 3 of the hall, and the protector 13 is closer to the center of the doorway 4 (FIG. 5) than the position of the safety shoe 5 when the door is open. And is elastically deformable. 14 is a buffer spring provided around the fixed shaft 12, 15 is provided inside the protector 13, and
The protective switch is attached to the mounting base 11 via the buffer spring 14 and is operated by deformation of the protector 13. The protective switch 15 is a pair of flexible normally arranged parallel to each other. A rubber switch having open contacts 15a and 15b is used.

Reference numeral 16 is a case fixed to the mount 11, reference numeral 17 is an alarm buzzer housed in the case 16,
18 is a storage battery as a power source connected to the alarm buzzer 17 through the protection switch 15, and 19 is an alarm buzzer 17
Is a car detection switch that is connected between the storage battery 18 and the storage battery 18, and becomes conductive when the car stops on the floor where the protector 13 is provided.

Next, the operation will be described. As shown in FIG. 3, when the truck 20 passes through the doorway 4 to the left, it does not collide with the safety shoe 5 but first collides with the protector 13. When a strong collision occurs, the protector 13 is deformed and the protection switch 15 is turned on. Further, the shock due to the collision is absorbed by the compression of the buffer spring 14. On the other hand, when the car stops on that floor, the car detection switch 19 is turned on. Therefore, the storage battery 1
Power is supplied from 8 to the alarm buzzer 17, and the alarm buzzer 1
7 sounds.

As a result, the person using the carriage 20 recognizes that the carriage 20 is moving to the left. After that, when the trolley 20 is separated from the protector 13, the protector 1
3. The buffer spring 14 and the protection switch 15 are restored to the original state, and the alarm buzzer 17 stops ringing. And
By correcting the trajectory of the trolley 20 and advancing the trolley 20 so as not to collide with the protector 13, collision of the trolley 20 with the safety shoe 5 can be avoided.

As described above, in this example, since the protector 13 projecting from the safety shoe 5 is provided on the landing box three-way frame 3, the carriage 20 will pass through the course inside the protector 13, and the safety will be improved. The collision with the shoe 5 is more reliably prevented. Further, since the alarm buzzer 17 sounds when the cart 20 strongly collides with the protector 13, when the cart 20 attempts to travel on a course that is largely offset toward the safety shoe 5, A person using the 20 can be made aware of it, and a collision with the safety shoe 5 is further prevented.

Further, by providing a car detection switch 19,
Since the alarm buzzer 17 is set to sound only when the car is stopped on that floor, the storage battery 18 can be prevented from being consumed and malfunction can be prevented. Furthermore,
Since a rubber switch is used as the protection switch 15,
The collision of the carriage 20 can be detected over a wide range with a simple configuration.

The protection device of the present invention can be used in combination with the display mark 6 of the conventional example.
The number of collisions can be reduced. Further, as the alarm buzzer 17, not only a simple alarm sound but also a caution announcement can be used.

Further, in the above example, the protective device is provided only on one side of the landing three-way frame 3, but in the case where the safety shoes 5 are arranged on both sides with the central opening, side walls on both sides of the landing three-way frame 3 are provided. The part may be provided with a protection device.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an example of an entrance / exit protection device for an elevator according to the present invention.

FIG. 2 is a cross-sectional view taken along the line II-II of FIG.

3 is a plan view showing a state where a dolly collides with the device of FIG. 1. FIG.

FIG. 4 is a configuration diagram showing an operation state of the apparatus of FIG.

FIG. 5 is a front view showing an example of a landing of a conventional luggage elevator.

[Explanation of symbols]

3 halls on all sides, 4 doorways, 5 safety shoes,
13 protective equipment, 15 protection switch, 15a, 15b normally open contact, 17 alarm buzzer, 18 storage battery (power source), 1
9 Car detection switch.

Claims (4)

[Claims] 1. An elastically deformable member that is provided on a side wall portion of the landing frame on the side where the safety shoe is located when the door is open, and that projects toward the center of the doorway from the position of the safety shoe when the door is open. An entrance / exit protection device for elevators, which is equipped with various protective equipment. 2. A protection switch, which is provided in the protective equipment and is operated by deformation of the protective equipment, an alarm buzzer connected to the protective switch, and a warning buzzer connected to the alarm buzzer via the protective switch. The elevator entrance / exit protection device according to claim 1, further comprising: 3. The car detection switch, which is connected between the alarm buzzer and the power source, and is in a conductive state when the car is stopped on a floor provided with protective equipment. Elevator doorway protection device. 4. The elevator entrance / exit protection device according to claim 2, wherein the protection switch is a rubber switch having a pair of flexible normally-open contacts arranged in parallel with each other. .