JPS6223705B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for automatically transporting an automatically traveling trolley using an elevator.

The use of self-driving trolleys has been proposed to automatically transport cargo. In hospitals, etc., a serving table is placed on an automatically traveling trolley, which is then placed on the car of a cargo elevator and transported to each floor. That is, when the destination floor button of the trolley is specified using the destination floor button on the destination floor setting panel installed in the serving room and the departure command button is pressed, the trolley automatically travels towards the elevator hall. When it is detected that the trolley has arrived at the landing, an elevator call signal is issued and the car is called to this floor. When the car arrives at the landing, the trolley will board the car and the car will automatically travel to the designated floor. However, since the carts are called after the carts arrive at the landing, transportation of the carts is delayed.

To improve this, some systems have been designed to issue an elevator call signal when the trolley departs or while the trolley is running, but this can lead to people getting on and using the elevator if the trolley arrives early.
In this case as well, there is a risk that the use of the trolley will be delayed.

This invention improves the above-mentioned problems by preventing registration of elevator car calls and responses to hall calls when the trolley departs or while the trolley is running, and when the trolley arrives at the elevator landing or departs from the elevator. To provide an automatic transport device for an automatic traveling trolley capable of quickly calling a car that is almost empty by emitting a call signal and transporting a cart quickly.

Hereinafter, an embodiment in which the present invention is applied to hospital catering will be described with reference to FIGS. 1 and 2.

In the figure, 1 is the floor leading from the serving room to the elevator landing, 2 is a guide wire buried in the floor 1 that connects the serving room and the elevator hall and creates a magnetic field through low-frequency current, and 3 detects the magnetic field of the guide wire 2. 4, cargo such as a serving table that is automatically loaded onto the trolley 3, 5
1 is a destination floor setting board installed in the serving room, 6 is a destination floor button provided on the setting board 5 to indicate the destination floor of the trolley 3, 7 is a departure command button that also gives a departure command, 8 is an elevator car, 9 10 is a detection body such as a permanent magnet provided on the floor 1 of the landing, and 10 is a reed switch that is installed on the trolley 3 and engages with the detection body 9 when the trolley 3 comes to the landing, causing the trolley detection signal 10a to become "H". 12 is an OR gate, 13 is a truck exit signal that becomes "H" when truck 3 gets off from car 8, 14 is an AND gate, and 14a is the output of AND gate 14, which moves car 8 to the first floor. 15 is an R-S flip-flop (hereinafter referred to as memory), 15a is the output of the memory 15 and is a hall call response prevention signal, and 16A to 16I are the destination floors of the 1st to 9th floors provided in the car 8, respectively. Button, 1
7A to 17I are AND gates, 18A to 18I are car position signals that become "H" when car 8 arrives at the 1st to 9th floors, 19Aa to 19Ia are memories similar to memory 15, and 19Aa to 19Ia are memory 19A The output from 19I is a car call registration signal for the 1st to 9th floors, and 20 is a control panel installed in the machine room.

Next, the operation of this embodiment will be explained.

Assume that the trolley 3 loaded with the serving car 4 is now in the serving room on the first floor. When the attendant specifies the destination floor of the trolley 3 using the destination floor button 6 on the destination floor setting panel 5 and then presses the departure command button 7, the memory 15 is set and the hall call response prevention signal 15a becomes "H". Car 8 will now not respond to hall calls. Also, AND gates 17A to 17I
will be closed, so press the destination floor buttons 16A to 16I.
Even if the key is pressed, the outputs of the AND gates 17A-17I do not become "H" and the memories 19A-19I are not set, so that registration of car calls is blocked from now on. However, since the memories 19A-19I that have been set up to that point are not reset, the corresponding car calls are held. Therefore, the car 8 is operated in response to only the number of car calls that have been retained.

On the other hand, when the bogie 3 travels and arrives at the landing, it automatically stops (the circuit is omitted), and when the position detector 10 of the bogie 3 engages with the detector 9 at the landing, the bogie detection signal 10a becomes "H". Become. When car 8 stops at each floor in response to a car call, car position signals 18A~
The corresponding memory 18I becomes "H" and the corresponding memory 19A to 19I are reset.
The corresponding car call registration signals 19Aa to 19Ia become "L". Therefore, when all the car calls that have been held have been answered, OR gate 1
The output of 2 becomes "L". As a result, the first floor call signal 14a, which is the output of the AND gate 14, becomes "H", and the car 8 is called to the first floor.
When car 8 arrives at the first floor and the door opens, cart 3 gets into car 8 (circuit is omitted). And basket 8
closes the door and moves to the designated floor. after that,
When car 8 arrives at the designated floor and trolley 3 gets off from car 8, the trolley exit signal 13 becomes "H",
The memory 15 is reset, and its output 15a becomes "L", resulting in normal operation.

In this way, when the trolley 3 departs, additional registration of elevator car calls and responses to hall calls are prevented, the car 8 is left empty, and the trolley 3
When car 8 arrives at the landing, call signal 1 for car 8
4a, the car 8, which is almost empty, responds quickly to the truck 3.

Note that it is also possible to implement as follows.

(a) Applies to the transportation of goods in buildings and factories other than hospitals.

(a) A call signal 14a for the first floor of the car 8 is issued when the trolley 3 departs, and when the car 8 arrives at the first floor early, the car is kept on standby with the door closed so that no one gets on it.

(c) Instead of the departure command button 7, use a device that issues a departure command by voice.

(d) Instead of using the detector 9 and the position detector 10, the time estimated to be required from when the trolley 3 departs until it reaches the landing is used.

(e) Prevent car call registration while trolley 3 is running.

(F) When loading trolley 3 onto car 8, cancel the car call even if it is registered and move the passengers to car 8.
Force it to come down.

(g) As a guide device for the running direction of the bogie 3, a mechanical guide device such as a guide rail or an optical guide device such as a white line or stainless steel tape is used.

As explained above, in this invention, the registration of elevator car calls and responses to hall calls are prevented when the trolley departs or while the trolley is running, and when the trolley arrives at the elevator landing or when the trolley departs, the car call is blocked. By emitting a call signal, it is possible to quickly call a car that is almost empty, and it also prevents a car from arriving before the cart arrives at the landing and being taken for another purpose. Transport efficiency can be increased.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view showing an embodiment of an automatic transport device for an automatic traveling trolley according to the present invention, and FIG. 2 is a logic circuit diagram of FIG. 1. 3... Automatic traveling trolley, 7... Departure command button, 8...
Elevator car, 9... Detection object, 10... Position detector, 12... OR gate, 14... AND gate, 14
a...Car call signal, 15...R-S flip-flop, 16A-16I...destination floor buttons for 1st to 9th floors, 17A-17I...AND gate, 19A-
19I...R-S flip-flop, 19Aa~1
9Ia...Car call registration signal for 1st to 9th floors. Note that the same parts in the figures are indicated by the same reference numerals.

Claims (1)

[Claims] 1 Car call registration that prevents the registration of car calls for the elevator at the time of departure or while the trolley is running, in a system in which a trolley is automatically driven and placed in an elevator car, and the car is driven to a designated floor. a blocking circuit; a hall call response blocking circuit that prevents the registration of a hall call for the elevator; a position detection device that operates when the bogie arrives at the elevator landing; and a position detection device that operates when the bogie arrives at the elevator landing, and a An automatic transport device for an automatic traveling trolley, characterized in that the automatic transport device for an automatic traveling trolley is equipped with a call signal generation circuit that generates a signal to call the car whose car call registration and hall call registration are blocked to the floor when the car call registration and hall call registration are blocked.