JPH09278329A - Elevator with landing floor sensor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase door open time automatically at the time of carrying a truck into an elevator. SOLUTION: A truck detecting sensor 13 is provided on an elevator landing floor so as to turn on a call button 5 automatically and to start an open time setting timer for an elevator landing door 3 and a car door in the case of detecting a truck. This timer is set to longer time than normal time so as to enable a worker to carry in the truck positively by her/himself.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator, and more particularly to an elevator with a sensor for detecting a loading carriage.

[0002]

2. Description of the Related Art FIG. 3 shows an overall view of a conventional elevator hall. In the figure, 1 is a floor of a standard floor hall, 2 is a three-way frame, 3 is a landing door that closes the car side entrance of the three-way frame 2, 5 is a call button provided near the three-way frame 2, and 6 is a call button. It is a floor display (indicator) provided above the button 5.

Further, FIG. 4 is an overall view of a conventional elevator as viewed from the inside of a car. In the figure, reference numeral 7 is a car floor, 8 is a car side wall, and 9 is a sleeve wall which constitutes the left and right sides of the entrance and exit of the car. 1
0 is a car operation panel provided on one side wall (right side in the figure),
10a is a car door open button, 11 is a car door, 12 is a car door 11
It is a safety shoe provided at the tip of the.

In the above structure, when the carriage is carried into the elevator car, the hall call button 5 is first pressed to wait for the arrival of the elevator car. Then, when the car arrives and the hall door is opened, the worker carries the trolley into the elevator car.

[0005]

However, since the time when the door of the hall is opened is usually about several seconds, the operator must smoothly and quickly carry the carriage into the car, which is troublesome to carry in. However, there was a problem that the door was closed during the loading operation and it collided with the trolley. Therefore, in order to avoid such a collision, a person other than the operator must press the hall call button 5 or the car door open button 10a during the loading operation.

The present invention has been made for the purpose of solving the above-mentioned problems of the prior art, and an object of the present invention is to provide an elevator in which an operator can surely carry a dolly into a car.

[0007]

In order to achieve the above object, a first invention is a trolley detection sensor provided on an elevator floor, and an elevator car and a trolley when a trolley is detected by the trolley detection sensor. It is characterized by having a timer control means for setting the opening time of the hall door to be longer than the normal time.

In a second aspect of the present invention, in the first aspect of the present invention, when the trolley is detected by the trolley detection sensor and then the trolley is carried into an elevator car and separated from the landing floor, the timer control means is used for the car. Also, the hall door opening time is returned to the normal time.

A third aspect of the present invention is any one of the first and second aspects, further comprising means for automatically operating an elevator call button when the trolley detection sensor detects a trolley. And

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. The same members as those of the conventional elevator shown in FIGS. 3 and 4 are designated by the same reference numerals,
The description is omitted.

FIG. 1 shows an overall view of the elevator of this embodiment. In the figure, 13 is the standard floor hall 1
It is a detection sensor provided in, and is composed of 13a and 13b. Reference numerals 13a and 13b denote weight switches which are arranged at a predetermined interval and which operate when a cart or the like is mounted. The surfaces of the switches 13a and 13b are colored differently from the other parts and function as guides for the carriage. Reference numeral 14 denotes a speaker provided on the indicator 6, and broadcasts a caution announcement when the opening time of the car and the hall door is extended as described later.

FIG. 2 shows an electric circuit diagram of the elevator shown in FIG. In the figure, 13c and 13
Reference numeral d is a contact interlocking with the switches 13a and 13b, respectively, and the switches 13a and 13b are closed at the same time. Reference numeral 15 is a carriage detection device, and 13c and 13d
Is closed, that is, the weight switches 13a and 13b are both closed, and thus the operation is performed. Therefore, even if a person or the like is on the floor of the hall, the cart detection device 15 does not operate. Fifteen
a to 15d are contacts interlocking with the carriage detection device 15,
15a is normally closed and opens when the truck detection device 15 operates, and 15b to 15d are normally open and closed when the truck detection device 15 operates. Reference numeral 16 is a normal door opening / closing control timer, which sets the opening time of the car and the hall door at the normal time. 17
Is an extension door open / close control timer, which sets the opening time of the car and hall doors when the truck is loaded. Reference numeral 18 is a reference floor call button relay, and when the carriage detection device 15 operates, the contact 15d is closed and the operation is started to turn on the reference floor call button 5.
Reference numeral 18a is a reference floor call relay contact, and 19 is a reference floor call button cancel contact.

The operation of the above arrangement will be described below.

When the operator places the truck on the truck detection sensor 13, the switches 13a and 13b are turned on by the weight of the truck. Then, the contacts 13c and 13d which are interlocked with these switches are closed, and the carriage detection device 15 operates. When the trolley detection device 15 operates, the contact 15d is closed and the reference floor call button relay operates. Therefore, the operator can call the elevator to his / her floor simply by placing the dolly at a predetermined position on the floor without operating the reference floor call button 5.

When the elevator arrives, the car and the hall door are opened. At this time, the trolley detection device 15 operates and the contact 15
Since b is also closed, the extension door opening control timer 17 starts operating and keeps the car and hall door open for a time longer than the normal opening time. Further, when the carriage detection device 15 operates, the contact 15
Since c is also closed, the speaker 14 is also energized and a caution announcement is broadcast to the worker. The content of the caution announcement can be set arbitrarily, and can be broadcast, for example, "Please be careful of the door."

When the operator finishes carrying in the carriage into the car while the landing door 3 is open for a longer time than usual, the weight switches 13a and 13b are turned off and the contact 13c interlocked therewith. Also, 13d is opened, and the truck detection device 15 ends its operation. When the operation of the truck detection device 15 is stopped, the contact 15b is opened and the extended door open control timer 17 ends, and the contact 15a is closed and the normal door open control timer starts to operate, and the normal open time is increased. After the passage, close the car and the hall door.

As described above, according to the present embodiment, the elevator is automatically called to the floor and the time when the hall door is opened is set longer than usual, so that the operator can reliably carry the truck alone. Can be brought into the car.

Further, since the caution announcement is broadcast when the dolly is carried in, it is not necessary for the worker to rush in to carry it in, and it is possible to prevent the dolly from hitting the car wall.

In this embodiment, a set of two weight sensors is used as a sensor for detecting the truck, but the present invention is not limited to this, and infrared, light, ultrasonic waves, etc. Of course, any sensor can be used.

[0020]

As described above, according to the present invention, when the carriage is carried into the elevator, the elevator can be automatically called to the floor without operating the hall call button. Further, according to the present invention, the elevator car and the hall door are opened longer than usual when the carriage is carried in, so that the situation where the hall door is closed during the carriage and the carriage is hit against the carriage can be reliably carried in by one person. be able to.

[Brief description of drawings]

FIG. 1 is an overall view of an embodiment of the present invention.

FIG. 2 is an electric circuit diagram of the same embodiment.

FIG. 3 is an overall view of a conventional elevator.

FIG. 4 is a configuration diagram of a conventional elevator car.

[Explanation of symbols]

1 Standard floor hall Floor, 2 hall 3 sides frame, 3 hall doors, 5
Landing call button, 6 indicator, 7 car floor, 8 car side wall, 9 sleeve wall, 10 car operation panel, 11 car door, 12
Safety shoes, 13 sensors, 14 speakers,
15 trolley detection device, 16 normal door opening and closing timer, 17
Extension door open-air control timer, 18 standard floor call button relay, 19
Standard floor call button cancel contact.

Claims (3)

[Claims] 1. A trolley detection sensor provided on the floor of an elevator hall, and timer control means for setting an opening time of an elevator car and a hall door to be increased from a normal time when the trolley is detected by the trolley detection sensor. Elevator with hall floor sensor. 2. When the trolley is detected by the trolley detection sensor and then the trolley is carried into an elevator car and leaves the floor, the timer control means resets the opening time of the car and the hall door to normal time. The elevator with a landing floor sensor according to claim 1. 3. The elevator with hall floor sensor according to claim 1, further comprising means for automatically operating an elevator call button when the truck is detected by the truck detection sensor.