JP2776060B2 - Moving shelf equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is to selectively form a work passage between shelves arranged side by side by moving a horizontally movable shelf, and to close the open work passage for each work passage. The present invention relates to a mobile shelf device provided with an interlock release switch that makes it possible.

[0002]

2. Description of the Related Art In a conventional moving shelf apparatus of this type, the interlock release switch is provided at an end face of a shelf adjacent to each work path on the side of a work path entrance and exit corresponding to each work path. It was provided on the board.

[0003] In such a conventional configuration, it is determined whether or not it is safe to close the open passage when the interlock is released from the open passage, which is performed prior to the opening operation of the closed passage. It is assumed that the safety check is performed securely, but there is no problem as long as the safety check is performed securely. When the lock release switch is operated, the interlock is released even if a worker enters the passage. Therefore, when an operation of opening another passage is performed, a serious danger is imposed on a worker entering the passage that is closing.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a mobile shelf apparatus which can solve the above-mentioned conventional problems. , Work paths A to C are alternatively formed between the parallel shelves by moving the horizontally movable shelves 3 and 4, and each of the work paths A to C is opened. Interlock release switch 7A to enable closing of the work passage
7C, the interlock release switch is set to the shelves 3 and 4 adjacent to the work passages A to C.
Are provided both on the operation panels 6A to 6C corresponding to the respective work passages provided on the end face on the side of the work passage entrance and exit and the front positions of the shelves 3 and 4 which enter and operate the respective work passages A to C. When both of the two interlock release switches 7A to 7C corresponding to the same work passage are operated, the interlock of the work passage is released.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. In FIG. 1, reference numerals 1 and 2 denote fixed shelves, and reference numerals 3 and 4 denote between the fixed shelves 1 and 2. The moving shelf is supported on the laid guide rail 5 so as to be able to move laterally. Thus, by moving the movable shelves 3 and 4 to the fixed shelf 2 side, a work passage A is formed between the fixed shelf 1 and the movable shelf 3 as shown in FIG. By moving the shelves away from each other, a work passage B is formed between the moving shelves 3 and 4, and by moving the moving shelves 3 and 4 to the fixed shelf 1 side, a space between the fixed shelf 2 and the moving shelf 4 is formed. A work passage C is formed.

[0006] On the end face of the movable shelf 3 on the entrance side of the work passage,
An operation panel 6A corresponding to the work passage A is provided,
An operation panel 6B corresponding to the work path B and an operation panel 6C corresponding to the work path C are provided on the end face of the work path entrance / exit side. Further, the movable shelf 3 is located at a front position facing the work passage A and at a distance from the end of the work passage A on the entrance side.
m, a push button type interlock release switch 7A is attached to the movable shelf 4 at both front positions facing the work passages B and C and the work passages B and C
Push button-type interlock release switches 7B and 7C are respectively attached to locations about 1 m from the entrance side of the entrance.

As shown in FIG. 2, operation panels 6A to 6C corresponding to the respective work passages A to C are provided with push button type passage opening switches 8A to 8C for the respective corresponding work passages and push button type switches. Lock release switches 9A to 9C and the like (the others are not shown) are provided, and interlock release switches 7A to 7C on the front of the shelf and passage opening switches 8A to 8C.
C and the interlock release switch 9A on the operation panel
The control device 10 which receives a signal from the 9C or a signal from a passage opening limit (passage closing limit) detection sensor (not shown) inputs the driving wheels 11 and 12 of the moving shelves 3 and 4 to the right. Motors 13 and 14 driven in reverse rotation
To a motor controller 15, such as an inverter,
Control via 16.

As shown in FIG. 3, the control device 10 includes an interlock circuit 1 corresponding to each of the work paths A to C.
7Aa, 17Ab, 17Ba, 17Bb, and 17C
a, 17Cb are provided. The signal transmission system of the passage opening switch 8A of the work passage A includes interlock circuits 17Ba and 17C that operate when the work passages B and C are opened to disconnect the signal transmission system of the passage opening switch 8A.
The interlock circuit which operates when the work passages A and C are opened and separates the signal transmission system of the passage open switch 8B is provided in the signal transmission system of the passage opening switch 8B of the work passage B. 17Ab and 17Cb are interposed, and the signal transmission system of the passage opening switch 8C of the work passage C is activated when the work passages A and B are opened to disconnect the signal transmission system of the passage opening switch 8C. Interlock circuits 17Ab and 17Bb are interposed.

The interlock circuits 17Aa and 17Ab corresponding to the work path A are output from an AND circuit (AND gate) 18A when both of the two interlock release switches 7A and 9A corresponding to the work path A are operated. The interlock function is released by the interlock release signal 18a, and the interlock circuits 17Ba and 17Bb corresponding to the work passage B are operated when both the interlock release switches 7B and 9B corresponding to the work passage B are operated. The interlock operation is released by an interlock release signal 18b output from a logical product circuit (AND gate) 18B, and the interlock circuits 17Ca and 17Cb corresponding to the work path C have two interlocks corresponding to the work path C. When both release switches 7C and 9C are operated AND circuit (AND gate) 18
The interlock operation is released by the interlock release signal 18c output from C.

When the work passage B is opened from the state in which the work passage A is open as shown in FIG.
By operating both the interlock release switch 9A on the operation panel 6A and the interlock release switch 7A at the front position of the movable shelf 4 facing the work passage A, the interlock operation of the interlock circuits 17Aa and 17Ab is performed. To release. Thereafter, as shown in FIG. 4, the passage opening switch 8B of the operation panel 6B corresponding to the work passage B to be opened is operated.

Of the interlock circuits 17Aa and 17Cb interposed in the operation transmission system of the passage opening switch 8B, the interlock circuit 17Aa is operated by the two interlock release switches 7A and 9A as described above. The operation is released and the interlock circuit 17 is released.
Since Cb corresponds to the closed work passage C and has not been operated from the beginning, a command to open the passage B is output by operating the passage opening switch 8B. As a result, the control device 10 operates the motor 13 of the movable shelf 3 via the motor controller 15, drives the drive wheel 11 to rotate in the normal direction, moves the movable shelf 3 to the fixed shelf 1 side, and
Is closed, and the work passage B is opened.

As shown in FIG. 4, when the work passage B is completely opened, the lateral movement of the movable shelf 3 is automatically stopped, and at the same time, the interlock circuits 17Ba, 17B corresponding to the work passage B are provided.
b operates, and even if the passage opening switches 8A and 8C for opening the work passages A and C are operated, the opening command for these passages A and B is not output.

As shown by phantom lines in FIG. 1, in a movable shelf apparatus in which each of the work passages A to C can enter and exit from both front and rear ends, operation panels 6A to 6C and work passages A to C are provided.
Release switch 7A ~
7C may be disposed on both front and rear ends of each of the movable shelves 3 and 4.

[0014]

As described above, according to the moving shelf apparatus of the present invention, the interlock release switch enabling the closing of the opened work passage is provided on the end face of the conventional work passage entrance / exit side of the shelf. It is disposed at two places, on the provided operation panel and at the front of the shelf to be operated in the work passage, and by operating both of these two interlock release switches, the open work passage is opened. Since the corresponding interlock can be released, it is necessary to visually check whether or not it is safe to close it. When the interlock is released only by operating the interlock release switch in the work passage, the worker working in the work passage Interlock also eliminates a fear that would be released accidentally touch the lock release switch, safety as a whole will be greatly improved.

[Brief description of the drawings]

FIG. 1 is a schematic plan view showing an example of a moving shelf facility.

FIG. 2 is a block diagram illustrating a configuration of a control system.

FIG. 3 is a block diagram illustrating an interlock circuit.

FIG. 4 is a flowchart illustrating a procedure of drive control of a movable shelf.

[Explanation of symbols]

 1, 2 fixed shelf 3, 4 movable shelf 6A-6C operation panel 7A-7C interlock release switch 8A-8C passage opening switch 9A-9C interlock release switch 10 controller, 11, 12 movable shelf drive wheel 13, 14 Wheel drive motor 15, 16 Motor controller 17Aa-17Cb Interlock circuit

Claims (1)

(57) [Claims] 1. An interlock for selectively forming a work passage between shelves arranged in parallel by moving a horizontally movable shelf, and enabling an open work passage to be closed for each work passage. In a moving shelf apparatus provided with a release switch, the interlock release switch is located adjacent to each work path.
Corresponding to each work passage arranged on the end face of the work passage entrance side of the shelf
On the operation panel and the front of the shelf that operates inside each work passage
The two work places corresponding to the same work passage
Operation of the work
A moving shelf device that releases road interlocks .