JPH0517014A - Rotary rack apparatus with shutter - Google Patents

Abstract

PURPOSE:To prevent a stored article from being brought out from a rack in a load putting in and out work position by an outside's opening a shutter freely and to eliminate the need of carrying a lock releasing key. CONSTITUTION:In a rotary rack apparatus constructed so that many racks 1 connected endlessly and turned in a circulating path are built in and a manual operated opening and closing shutter 9 is disposed in an opening portion 8 for a load putting in and out work for a rack stopped in a load putting in and out work position, there are provided a lock means 10 for locking the shutter 9 put in a close limit position, and a control means 14 for switching the lock means 10 to an unlock state when a password number input from a control panel 15 and a previously stored set number match.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention incorporates a large number of racks which are connected endlessly and which rotate in a circulation path, and which is provided at an opening for loading / unloading work for a rack stopped at a loading / unloading work position. The present invention relates to a rotary shelf device provided with a manual opening / closing shutter.

[0002]

2. Description of the Related Art In the conventional rotary shelf device equipped with the manual opening / closing shutter as described above, anyone can open the shutter, so that even if the rack cannot be rotated, the person in charge is in charge. A person other than the person concerned may open the shutter without permission and take out the stored items from the rack at the loading / unloading work position.

In order to eliminate such an inconvenience, it is conceivable to provide a locking device for locking the shutter at the closing limit position, but the operator has to carry a key for unlocking the locking device. If the key is lost or forgotten to be carried, or the key hole of the locking device is crushed by mischief or the like, normal and efficient work may not be performed.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and its features are shown by the reference numerals of the embodiments described later. As described above, a large number of racks 1 which are connected endlessly and rotate in the circulation path are built-in, and a manual opening / closing shutter 9 is provided in the opening 8 for loading / unloading work with respect to the rack stopped at the loading / unloading work position. In the carousel device provided with, lock means 10 for locking the shutter 9 at the closed limit position is provided, and when the recitation number input from the operation panel 15 matches the preset number stored in advance, Control means 1 for switching the lock means 10 to the unlocked state
4 is provided.

[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 (A), reference numeral 1 denotes a number of racks endlessly connected by a drive chain 2. ,
It is rotatably supported in a vertical circulation path 4 in the case 3. The drive chain 2 includes a motor 5 with a reducer.
It is hung on the drive tooth wheel 6 and the idler tooth wheel 7 which are interlocked with each other. The case 3 is provided with an opening 8 for loading / unloading work, and a manual opening / closing shutter 9 is provided in the opening 8.
And an automatic electromagnetic lock means 10 for locking the shutter 9 at the closed limit position.

As shown in FIG. 1B, the motor 5
The motor controller 11 such as an inverter for controlling the start / stop and the rotation speed, the rotation direction, etc., the power switch (lock / unlock switch) 12 of the automatic electromagnetic lock means 10, and the alarm means 13 such as a buzzer,
It is controlled by the control means 14 including a microcomputer. Reference numeral 15 is an operation panel for giving various command signals to the control means 14, and 16 is a shutter close limit detection switch for detecting the shutter 9 at the close limit position.

The automatic electromagnetic lock means 10 and the shutter close limit detection switch 16 are provided together with the opening 8 as shown in FIG. The automatic electromagnetic lock means 10
Is provided with a locking rod 18 projecting by the urging force of the spring 17 in the locked position in the demagnetized state, and when the shutter 9 is in the closing limit position on the side surface 9a of the shutter 9 facing and adjacent to the locking rod 18. A locking hole 19 into which the locking rod 18 is fitted is provided in the. Thus, the locking rod 1
When the automatic electromagnetic locking means 10 is in the demagnetized state when the shutter 9 is in the open position shown by the phantom line in FIG. 2, 8 can contact the shutter side surface 9a by the biasing force of the spring 17, The shutter 9 can be locked by automatically fitting into the locked hole 19 when the shutter 9 descends to the closing limit position.

Further, the operation panel 15 is provided side by side with the opening 8. The operation panel 15 has a function selection keyboard 20, a numeric keyboard 21, and a display means in addition to the alarm means 13 such as the buzzer. 22 and the like are provided.

In the above rotary shelving device, the drive chain 2 is rotated by the motor 5 so that each rack 1 is rotated in the vertical circulation path 4 so that the specific rack 1 is adjacent to the opening 8. The loading / unloading work position can be called, but prior to the loading / unloading work of the rack 1 called to the loading / unloading work position, as shown in FIG. 2, the automatic electromagnetic locking means 10 locks at the closing limit position. It is necessary to open the shutter 8 by opening the shutter 8 by opening the opening 8 by switching the automatic electromagnetic lock means 10 to the unlocked state. After the work is completed, the shutter 9 must be moved downward and closed to close the opening 8, and then the automatic electromagnetic locking means 10 must be switched to the locked state to lock the shutter 9 at the closing limit position.

A control program for switching the automatic electromagnetic locking means 10 from the locked state to the unlocked state and vice versa is set in the control means 14. A control method and an operation method by this control program will be described based on the flowchart of FIG.
When switching the automatic electromagnetic locking means 10 from the locked state to the unlocked state in order to open the shutter 9, the F on the function selection keyboard 20 on the operation panel 15 is switched.
After pressing the UN key and the lock release key at the same time, enter the specified number of recitation numbers on the numeric keyboard 21
Finally, the set key on the function selection keyboard 20 is pressed.
The control means 14 compares the preset number stored in advance with a predetermined number of digits with the input code number, and when they match, the power switch (lock / unlock switch of the automatic electromagnetic lock means 10). ) 12 is closed, and the automatic electromagnetic lock means 10 is energized and excited to retract the locking rod 18 against the urging force of the spring 17 to switch to the unlocked state. If the set number and the input recitation number do not match, the display means 22 indicates that there is an input error.

When the automatic electromagnetic lock means 10 is switched to the unlocked state, the shutter 9 can be moved upward to open the opening 8. The shutter 9 that has risen and reached the opening limit position is held at that position by a friction holding force or the like. After the work is completed, the shutter 9 is lowered to the closing limit position to close the opening 8 and then the FUN key and the lock set key on the function selection keyboard 20 on the operation panel 15 are pressed at the same time. , Input a predetermined number of recitation numbers on the numeric keyboard 21, and finally press the set key on the function selection keyboard 20. The control means 14 compares the preset number stored in advance with a predetermined number of digits with the input code number, and when they match, the power switch of the automatic electromagnetic lock means 10 (lock / unlock changeover switch). ) 12 is opened, the power supply to the automatic electromagnetic lock means 10 is cut off to demagnetize, and the locking rod 18 is switched to an unlocked state in which it can be projected by the urging force of the spring 17.

Therefore, when the shutter 9 is at the closing limit position, the locking rod 18 projects by the biasing force of the spring 17 and fits into the locked hole 19 of the shutter 9 to lock the shutter 9 at the closing limit position. If the lock operation is performed before the shutter 9 is closed or when the shutter 9 is not completely lowered to the closing limit position, the automatic electromagnetic lock means 10 is switched to the unlocked state. Based on the shutter close limit detection switch 16 being in the off state, the alarm means 13 such as a buzzer is activated to prompt the operator to close the shutter 9. In this case, the locking rod 18 of the automatic electromagnetic lock means 10 is projected first, but the locking rod 18 does not hinder the downward closing movement of the shutter 9 and the shutter 9 is lowered when the shutter 9 is lowered to the closing limit position. The locking rod 18 automatically fits into the locked hole 19 on the shutter 9 side to lock the shutter 9. Of course, when the set number and the input recitation number do not match, the display means 21 indicates that there is an input error.

In the above embodiment, the operation of inputting the code number is required to lock the shutter 9 at the closing limit position. However, as shown in the flow chart of FIG. In order to open 9, the automatic electromagnetic lock means 10 is switched from the locked state to the unlocked state by the operation of inputting the code number, and then the shutter 9 is lifted to detect the shutter close limit detection switch 16.
Is switched from on to off, or when the shutter close limit detection switch 16 is kept off for a set period of time, the automatic electromagnetic lock means 10 is deenergized to be demagnetized and locked from the unlocked state. It can be returned to the state. In this case, the shutter 9
When the lever is moved down to the closing limit position, the locking rod 18 of the automatic electromagnetic locking means 10 in the locked state automatically fits into the locked hole 19 on the shutter 9 side, and the shutter 9 is closed. Lock in position.

[0014]

As described above, according to the rotary shelving device with a shutter of the present invention, the manual opening / closing shutter having the opening for loading / unloading work can be locked by the locking means. When opening the shutter, the operation of inputting the recitation number on the operation panel is performed, and the locking means may be switched to the unlocked state only when the input recitation number matches the preset number stored in advance. Since it is possible, only a specific person, such as a person in charge of work who knows the recitation number, can open and close the shutter to load and unload cargo, and an outsider etc. can open the shutter without permission and remove the object from the rack. You can prevent it from being brought out.

Moreover, it is not necessary to carry around the key for unlocking the shutter, and the normal and efficient work can be performed by losing the key, forgetting to carry it, or crushing the key hole of the locking device by mischief or the like. There is no fear of being unable to carry out.

[Brief description of drawings]

FIG. 1A is a schematic vertical sectional side view showing a configuration of an entire rotary rack device, and FIG. 1B is a block diagram showing a configuration of a control system.

FIG. 2 is a partially cutaway front view showing a configuration around a shutter.

FIG. 3 is a flowchart illustrating a control procedure.

FIG. 4 is a flowchart illustrating a control procedure in another embodiment.

[Explanation of symbols]

1 ... rack, 8 ... Opening for loading / unloading work, 9 ... Manual open / close shutter, 10 ... Automatic electromagnetic locking means, 11 ... Motor controller, 12 ... Power switch for automatic electromagnetic lock, 13 ... warning means, 14 ... Control means, 15 ... Operation panel, 16 ... Shutter close limit detection switch, 18 ... Locking rod, 19 ... Locked hole, 20 ... Function selection keyboard, 21 ... Numeric keyboard, 22 ... Display means.

Claims (5)

[Claims] 1. A large number of racks connected endlessly and rotating in a circulation path are built-in, and a manual opening / closing shutter is provided at an opening for loading / unloading work with respect to a rack stopped at a loading / unloading work position. In the carousel device, a lock means for locking the shutter at the closed limit position is provided, and the lock means is unlocked when the recitation number input from the operation panel matches the preset number stored. A rotary shelving device with a shutter provided with a control means for switching to. 2. The automatic locking mechanism, wherein the locking means is switched to a locked state when the power is turned off, is switched to an unlocked state when the power is turned on, and is automatically locked when the shutter is closed in the locked state. The rotary shelf device with a shutter according to claim 1, which is an electromagnetic locking means. 3. Both of the switching from the unlocked state to the locked state and the switching from the locked state to the unlocked state of the automatic electromagnetic locking means include a password number input from the operation panel and a preset number stored in advance. The rotary shelving device with a shutter according to claim 2, wherein the rotary shelving device is equipped with a shutter. 4. The rotation with shutter according to claim 3, wherein when the automatic electromagnetic lock means is switched from the unlocked state to the locked state, the alarm means is activated if the shutter is not at the closing limit position. Shelf equipment. 5. The automatic electromagnetic lock means is switched from the unlocked state to the locked state when the shutter is opened after the automatic electromagnetic lock means is switched from the locked state to the unlocked state. Item 2
Rotating shelving device with shutter described in.