JPH03192003A - Movable shelf facilities - Google Patents

Abstract

PURPOSE:To prevent a switch from being damaged and improve the safety at the above movable shelf facilities equipped with a plurality of movable shelves for keeping lengthy matters, by providing movement command receiving narrow sight type receiving means at four end surfaces facing slantways against the reciprocating direction of each movable shelf, and arranging so that movement may be made in a transmitting direction as reception is being made. CONSTITUTION:Narrow sight type infrared light receivers 22A-22D whose purpose is to receive movement command signals delivered from an infrared radiation method transmitter, are provided at four end surfaces facing slantways against the reciprocating direction of each movable shelf 21. And, the light receiving areas E of these receivers 22A-22D are respectively formed into narrow sights facing slantways and forward more than fitting surfaces. And, when these receivers 22A-22D receive movement command signals, movable shelves 21 are moved in a movement command transmitting direction.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a movable shelf facility equipped with a plurality of movable shelves for storing long objects.

Conventional technology The above-mentioned conventional movable shelf equipment will be explained based on the drawings.

FIG. 4 is a layout diagram showing an example of mobile shelf equipment.

Reference numeral 1 denotes a movable shelf that self-travels back and forth on a track rail 2 in the direction of arrow A. As shown in FIG. The vehicle is configured to be stored at a location, and includes a bumper switch (not shown) connected to the bumper 7 as a means for driving interlock and a photoelectric switch 8 as an intrusion detector.
The vehicle is configured to travel by controlling a travel motor (not shown) by a control unit 10 by operating an operation switch 9. In FIG. 5, the long objects 6 are loaded and unloaded (entered and unloaded) in the direction of arrow B (frontage direction) perpendicular to the direction of arrow A (travel direction) or by a forklift vehicle. is the power supply rail.

Further, in FIG. 4, reference numeral 12 denotes an electric trolley that reciprocates on the track rail 13 and moves in the direction of arrow B to move the long object 6 between each movable shelf 1 or the fixed shelf 14.

The transfer of the long object 6 is carried out manually by a worker or by a forklift vehicle in the direction shown by arrow C (transfer direction).

Problems to be Solved by the Invention However, since the movable shelves 1 in the conventional movable shelving equipment are provided with the operation switch 9 facing the frontage direction B, there is a problem that it obstructs loading and unloading and causes damage. . In addition, in the moving area D indicated by diagonal lines in FIG. 6, the presence or absence of people or obstacles is monitored by a photoelectric switch 8. If the photoelectric switch 8 operates, an interlock will be activated and the movable shelf 1 will stop. Traveling direction A as shown by the imaginary line in Figure 7
It was difficult to mount the operation switch 9A facing the front.

The present invention solves the above problems, prevents damage to the operation switch, and allows workers to safely move movable shelves without having to get off a forklift or the like when loading and unloading long items. The purpose is to provide a movable shelf facility that can be used for

Means for Solving the Problems In order to solve the above-mentioned problems, the movable shelving equipment of the present invention is a movable shelving equipment comprising a plurality of movable shelves for storing long objects that reciprocate on a fixed path and each of the above-mentioned movable shelves. The movable shelf is provided with narrow-field receiving means for receiving movement command signals on each of the four end surfaces facing diagonally forward with respect to the reciprocating direction of movement of the movable shelf, and the movement command signal received by the receiving means is A control means for moving the movable shelf in the direction of transmission is provided.

Effect With the above configuration, the movable shelf receives only a movement command signal transmitted from a narrow field of view in front diagonally with respect to the reciprocating direction of travel, and automatically moves toward the transmission direction of the movement command signal received by the reception means. run Therefore, the position where the receivable movement command signal is transmitted is limited to the left and right diagonally in front of the vehicle in the direction of travel, so workers must move to a position where they can confirm that there are no people or obstacles in the space in the direction of travel. , safety is ensured.

EXAMPLE An example of the present invention will be described below based on the drawings. Note that the same components as those of the conventional example shown in FIG. 4 and FIG.

FIG. 1 is a side view of a movable shelf and an electric trolley of the movable shelf equipment of the present invention.

The movable shelf 21 of the present invention receives a movement command signal transmitted from an infrared transmitter on each of the four end surfaces facing diagonally forward with respect to the traveling direction A, instead of the conventional operation switch 9. As shown in Fig. 2, the light receiving area E of the infrared light receiver 22 has a narrow field of view facing diagonally forward from the mounting surface. The receiver 22 can only receive movement command signals from diagonally ahead.

FIG. 3 shows a configuration diagram of the control section 23 of the movable shelf 21.

The control unit 23 includes a controller 24 made of a microcomputer and an inverter 26 that drives a travel motor 25.

The controller 24 includes a determination unit 27 and a motor drive unit 28 that outputs forward/reverse rotation command signals to the inverter 26.
An OR circuit 29 that calculates the logical sum (OR) of the contact signals of the photoelectric switches 8A, 8B and the bumper switch 30A that detect intrusion in the direction of the second side (hereinafter referred to as the right direction) and outputs a rightward movement lock signal a. , electric trolley 1 with movable shelf 21
A photoelectric switch 8C detects an intrusion in a direction opposite to that of 2 (hereinafter referred to as right direction).

An OR circuit 30 that ORs the contact signals of 8D and bumper switch 30B and outputs a leftward movement signal lock signal;
The right direction reception signal C is obtained by ORing the operation signals of A and 22B.
OR circuit 31 that outputs, leftward infrared light receiver 22C
, 22D and outputs a left direction reception signal d, the right direction reception signal C is used as a set signal, the right direction movement lock signal a is used as a reset signal, and a right direction movement command signal e is output. R-S flip-flop 33
, and the left direction reception signal d as a set signal, the left direction movement lock signal s as a reset signal, and the left direction movement command signal f.
The R-S flip-flop 34 outputs a rightward movement lock signal a, a leftward movement lock signal b, a rightward movement command signal e, and a leftward movement command signal f.
is output to the motor drive section 28.

When the rightward movement command signal e is input, the motor drive unit 28 uses the rightward movement lock signal a as a lock signal and outputs a pulse signal g corresponding to the forward rotation speed to the inverter 25, and the leftward movement command signal f is input. When input, the leftward movement lock signal is used as a lock signal and a pulse signal corresponding to the reverse travel speed is output to the inverter 26.

Due to the configuration of the control section 23, the infrared light receiver 2 in the right direction
When 2A and 22B operate, a normal rotation pulse signal g is output to the travel motor 25 via the inverter 26, the movable shelf 21 moves to the right, and the infrared light receivers 22C and 22B to the left move.
When 22D operates, a reverse pulse signal is output to the travel motor 25 via the inverter 26, and the movable shelf 21 moves to the left.

Since the movable shelf 21 can be moved by sending a command signal to the infrared receiver 22 in this way, the worker does not need to get off the forklift vehicle, etc., which improves work efficiency and improves work efficiency. In order to operate the infrared light receiver 22, the operator must move to the light receiving area E in the direction in which the vehicle is traveling, so it is necessary to confirm that there are no people or obstacles in the space in the direction in which the vehicle is traveling, thereby ensuring safety. can improve sex. Furthermore, since the infrared light receiver 22 can be installed in a location where it will not interfere with the loading and unloading of the long objects 6, accidents such as damage during loading and unloading can be prevented.

Effects of the Invention As described above, according to the present invention, the movable shelf travels only when receiving a movement command signal from diagonally in front on the left and right in the direction of travel. Since the movable shelf is limited to the left and right diagonally in front of the moving direction, the worker must move to a position where he can confirm that there are no people or obstacles in the space in the moving direction, ensuring safety. Further, by using the transmitting/receiving means, the worker can move the movable shelf by operating from a distance, thereby improving work efficiency.

Furthermore, the receiving means can be installed in a location where it will not interfere with the loading and unloading of long objects, and accidents such as damage during loading and unloading of long items can be prevented.

[Brief explanation of drawings]

Fig. 1 is a side view of a movable shelf and an electric trolley of movable shelf equipment showing one embodiment of the present invention, Fig. 2 is a diagram showing the light receiving area of an infrared light receiver of the movable shelf, and Fig. 3 is a block diagram of the leg part of the same movable shelf, Fig. 4 is a layout diagram of the movable shelf equipment, Fig. 5 is a side view of the movable shelf of the conventional movable shelf equipment, and Fig. 6 is the moving area of the conventional movable shelf. FIG. 7 is a plan view of a conventional movable shelf. 2... Track rail (fixed route), 6... Long object, 2
1...Movable shelf, 22...Infrared light receiver (receiving means)
, 23...control unit, A...travel direction, E...light receiving area.

Claims (1)

[Claims] 1. A movable shelving facility equipped with a plurality of movable shelves for storing long objects that reciprocate on a fixed path, each movable shelf facing diagonally forward with respect to the reciprocating direction of movement of the movable shelves. A movable shelf facility comprising narrow-field receiving means for receiving a movement command signal on each of four end surfaces, and a control means for causing the movable shelf to travel in the direction in which the movement command signal received by the receiving means is transmitted.