JPH0420324B2 - - Google Patents

Description

Detailed Description of the Invention [Industrial Application Field] The present invention consists of a plurality of shelving devices, and when not in use, they are spread out so that there is space between adjacent shelving devices, and when goods are put in and out. The present invention relates to an electric movable shelving device in which a space having a width corresponding to a working path is formed between desired shelving devices by moving the shelving devices.

[Prior art] In order to be able to install a large number of shelving devices in a narrow space, the working space formed between the shelves is left for one aisle, and there is no space between other shelving devices. A dense mobile shelving system is one in which a plurality of shelving devices are arranged in a dense manner, and these shelving devices are moved to form a working passage on the storage surface side of the desired shelving device for storage. It has been provided in the past (for example, see Japanese Patent Publication No. 52-50582).

In addition, when not in use, in order to improve ventilation between each shelving device, after completing the loading/unloading operation, the shelving devices are moved to the spread-out position by operating a switch to create a space between each adjacent shelving device. Mobile shelf devices have also been provided in the past (see, for example, Japanese Patent Publication No. 56-45602).

[Problems to be Solved by the Invention] By the way, in the case of the above-mentioned device, there are cases in which the shelving device is immediately unfolded after the completion of the dispensing work in one aisle because there is no next dispensing, and in cases where the shelving device is immediately unfolded for the subsequent dispensing work. In some cases, the next desired passage may be opened, and conventional methods have been to reduce the complexity of operation by providing two types of switches, one for opening and one for resetting, or by providing a switch instead of both. There was a problem that could not be avoided.

In addition, in order to move the shelving device to the unfolded position, the unfolded position is determined in advance, and the limit switch of each shelf device is engaged with a structure on the floor.
Since each shelf device is stopped at a fixed position, it is mechanically complicated, and there are problems such as difficulty in changing the spread position.

SUMMARY OF THE INVENTION An object of the present invention is to provide an electric movable shelf device that solves the above-mentioned conventional problems.

[Means and effects for solving the problem] The present invention requires only one switch to be operated at the end of the disbursement work, and provides a timer that is linked to the operation of the switch, so that within the timer setting time,
When the passage selection switch for the next desired passage is operated, the desired passage opens, and if the switch is not operated, the shelving apparatus is automatically moved to the unfolded position, and each shelf apparatus may also be moved to the unfolded position. The operating time of the motor is controlled by the timer of each shelf device, and the unfolding position can be easily varied by adjusting the timer as necessary.

[Example] Next, an example of the present invention will be described below based on the drawings.

As shown in FIG. 1, both side walls 11 and 12 of a warehouse etc.
Four shelf devices A, B, C, and D in between are arranged so as to be movable in the left-right direction via wheels on guide rails 14 provided on the floor 13.

In the figure, 1, 2, 3, 4, and 5 are spaces between adjacent shelving devices, but in Figure 1, each space is approximately equally distributed, and in Figure 2, the space is shown as the storage work passage. 3 is open, and the others are in a crowded state. In some cases, as shown in Figure 3 or 4, a space is created by dividing the work passage between necessary shelving devices or at a predetermined location. This makes it possible to spread them evenly evenly when they are provided in a limited manner.

Self-propelled reversible motors _M1 ... _M4 are attached to the lower part of each of the shelf devices A...D, respectively, and rotate the wheels via a speed reduction mechanism.

In addition, the control panel on the front side of each shelf device A...D has a passage selection switch _PB1 ... corresponding to each space.
_PB5 are provided, and the path selection switches _PB1 ... _PB5 also serve as reset switches when resetting.

Furthermore, separation detection switches _LS1 ... _LS5 are provided at the lower part of the storage surface of each shelf device A...D, respectively.

By the passage selection operation of the passage selection switches _PB1 ... _PB5 , the passage selection relay is operated, and in conjunction with the operation of the passage forming relay, the movement direction of the shelf apparatus is proposed by the shelf apparatus movement selection circuit shown in FIG. Ru.

For example, when the aisle selection switch PB ₃ is operated at the shelves in the evenly spread state shown in FIG. 1, the aisle selection relay is activated, and the break contact C in the shelf movement selection circuit shown in FIG. ₃
Open, make dotted line SF of passage forming relay close,
The right running relays RF ₁ and RF ₂ of the shelf devices A and B and the left running relays RR ₃ and RR ₄ of the shelf devices C and D operate,
The make contacts rf ₁ , rf ₂ and rr ₃ , rr ₄ in the motor drive circuit shown in FIG. 5 are closed, and the motors M ₁ , M ₂
rotates to the right, motors M ₃ and M ₄ rotate to the left, shelf devices A and B start running to the right, and shelf devices C and D
starts driving to the left.

When the device A traveling on the right reaches the right side wall 11 as shown in Figure 2, the separation detection switch LS ₁ in Figure 7 is pressed and turned off, and the right travel relay RF ₁ returns to the OFF position. The make contact rf ₁ in FIG. 5 opens, cutting off the power to the motor M ₁ and stopping the shelf apparatus A.

The shelf device B connected to the shelf device A and traveling to the right approaches the stopped shelf device A, and when the detachment detection switch LS ₂ in FIG. 7 is pressed and turned off, the right travel relay RF is activated. ₂ returns, its make contact rf ₂ in FIG. 5 opens, cutting off the power to the motor M ₂ and also stopping the shelf apparatus B.

Similarly, when the shelf device D traveling on the left reaches the left side wall 12 as shown in FIG. 2, the separation detection switch LS ₅ in FIG. 7 is pressed and turned off, and the left travel relay RR ₄ is turned off. The make contact rr ₄ in FIG. 5 opens, cutting off the power to the motor M ₄ and stopping the shelving device D. , approaches the stopped shelf device D, and when the separation detection switch LS ₄ in Fig. 7 is pressed and turned off, the left traveling relay is activated.
RR ₃ is restored and its make contact in Figure 5
rr ₃ opens, cutting off the power to the motor M ₃ , and the shelf device C also stops, forming a passageway as a wide space 3 as shown in FIG.

After the completion of the dispensing work, the passage selection relay is reset by resetting the passage selection switch in the passage space 3, and its break contact C ₃ in FIG.
, and activates the first timer for timing until the passage selection operation for the next desired passage.

FIG. 8 is a flowchart of this embodiment,
FIG. 9 is an unfolding operation block diagram. When a passage is formed, a passage selection relay is activated by passage selection operation by a passage selection switch, and a passage selection signal is generated. This signal activates the passage forming relay, which activates a control circuit such as a shelf apparatus movement selection circuit, and moves the shelf apparatus in the direction in which the selected passage is opened, thereby forming the passage.

The first timer starts operating from the time of the reset operation accompanying the completion of the dispensing and dispensing work in the formed passage.
If the next passage selection operation is to be performed within the set time of the timer, the first timer is returned midway and the passage forming operation described above is repeated, so that the desired passage can be continuously formed. In addition, if there is no passage selection operation within the time set by the first timer from the time of the reset operation, the first timer times up and the passage selection relay for the formation passage is operated again, and the spread formation relay is activated and the travel restriction timer is activated. As a result of this operation, an unfolding control circuit such as a shelf device movement selection circuit is activated, and each shelf device moves to and stops at the unfolded position limited by the travel limit timer.

That is, when another desired path is selected within the time set by the first timer, the first timer returns midway, and the moving direction of the shelf devices A, B, C, and D is selected as described above, and the shelving units A, B, C, and D are moved toward and away from each other. Detection switches LS ₁ ... LS ₅ are moved to the right or left end where they are turned off, and the desired passage is formed, allowing continuous loading and unloading work.

Next, the operation of forming the passage 3, activating the first timer after a reset operation, and shifting to the unfolded position after the timer setting time has elapsed will be described.

When the first timer times up, the spread formation relay operates, closing its make contact SR in the traveling limit setting circuit shown in Fig. 6, and operates from the start of spread movement for each shelf device, so that each shelf device Of the left travel limit timers TR ₁ to _{TR 4} and right travel limit timers TF ₁ to _{TF 4} , which each set the traveling time to move to the spread position, in the operating circuit of LS ₃ whose separation detection switch is not pressed. The left travel restriction timer TR ₂ and the right travel restriction timer TF ₃ start operating.

In addition, each travel limit timer TF ₁ , TR ₁ , TF ₂ ,
TR ₃ , TF ₄ , TR ₄ are separation detection switches LS ₁ ,
When the pressure on LS ₂ , LS ₄ , and LS ₅ is released, the operation starts.

Also, when the first timer times up, the selected path to be formed is detected (the path to be formed may be stored or detected by a separation detection switch, etc.), and the path selection relay is broken. contact
c ₃ (Fig. 7) is operated again, and in conjunction with the operation of the spread formation relay, the break contact c ₃ in the shelf device movement selection circuit of Fig. 7 is opened, and the make contact sr is closed. No separation detection switch
Through LS ₃ , the left traveling relay RR ₂ of the shelf device B and the right traveling relay RF ₃ of the shelf device C operate, closing the make contacts rr ₂ and rf ₃ in the motor drive circuit of FIG.
Each of the shelf devices B and C starts moving leftward and rightward toward the unfolded position.

As for the following shelving devices A and D, when shelving devices B and C start, a gap is created between the respective shelving devices, and the pressure on the separation detection switches LS ₂ and LS ₄ is released, the left running relay of the shelving device A is activated. RR ₁ and the right running relay RF ₄ of the shelf device D are operated, and the make contacts rr ₁ and rf ₄ of the motor drive circuit shown in FIG. Then start driving left and right.

On the other hand, the shelf device A traveling toward the unfolded position,
B, C, and D move until the time set by the travel limit timers TR ₁ , TR ₂ , TF ₃ , and TF ₄ of each shelf device in FIG. 6 has elapsed.

In other words, shelf devices B and C have a left travel limit timer.
When TR ₂ and right travel limit timer TF ₃ time up, shelf devices A and D also become left travel limit timer.
When TR ₁ and right travel limit timer TF ₄ time up, the timer contact of the shelf device movement selection circuit shown in Figure 7 is activated.
Open tr ₂ , tf ₃ , tr ₁ , and tf ₄ and restore the left or right running relays RR ₂ , RF ₃ , RR ₁ , and RF ₄ of each shelf device, and make the motor drive circuit shown in Fig. 5. contact
rr ₂ , rf ₃ , rr ₁ , and rf ₄ are opened, and each shelf device stops at a predetermined unfolded position.

In addition, when traveling in a dispersed manner, each travel limit timer
If TR ₁ ...TR ₄ and TF ₁ ...TF ₄ settings are 0,
It remains stopped at its original stop position and does not move.

In this embodiment, an electromagnetic relay circuit is used, but it goes without saying that these may be made of a semiconductor circuit.

[Effects of the Invention] As described above, according to the electric movable shelf device according to the present invention, the following effects can be achieved.

To improve the air conditioning effect by creating a ventilation space between the shelf devices when not in use, and to change the ventilation space as the situation changes, making uneven distribution possible.

A passage space can be automatically provided between certain shelf devices when not in use, and a space can be provided near the wall to prevent condensation.

A space can be automatically created at a specific location, such as an air conditioner outlet.

It is possible to automatically close the shelves for storing confidential documents and the like.

When a dehumidifier is installed, it is possible to improve the dehumidification effect and improve the circulation of cold air in the frozen warehouse.

[Brief explanation of drawings]

The figure shows an embodiment of the present invention.
The figure is a front view of the shelf device in a state where it is evenly spread out, Figure 2 is a front view when the storage work passage is formed, Figures 3 and 4 are front views of each state in which the shelf devices are spread out unevenly, and Figure 5 6 is a motor drive circuit diagram, FIG. 6 is a traveling limit setting circuit diagram, FIG. 7 is a shelf device movement selection circuit diagram, FIG. 8 is a flowchart, and FIG. 9 is an unfolding operation block diagram. A, B, C, D...shelf device, _M1 to _M4 ...reversible motor, _PB1 to _PB5 ...aisle selection switch, LS ₁
~LS ₅ ... Disconnection detection switch, c ₁ ~ c ₅ ... Passage selection relay contact, sf... Passage formation relay contact,
sr...Contacts of spread formation relay, TR ₁ to TR ₄ ...Left travel limit timer, TF ₁ to _{TF 4} ...Right travel limit timer, RR ₁ to RR ₄ ...Left travel relay, RF ₁ to
RF ₄ ...Right travel relay.

Claims (1)

[Claims] 1. A plurality of self-propelled shelving devices that can be moved in a direction perpendicular to the storage surface by reversible motors provided in each one are arranged with a margin space equivalent to one working path. In the electric movable shelving device, the shelving device is moved in response to an aisle selection signal from an aisle selection switch to form a working path on the storage surface side of the shelving device where the articles are to be stored. means for detecting the passage formed by the operation of the passage selection switch; a first timer that operates from the time of reset operation of the passage selection switch; and a means for detecting a left-hand drive for each shelf device, which operates after the set time of the first timer has elapsed. and an unfolding control circuit that shifts and stops the shelf device to an unfolded position that divides the space by means of a left travel limit timer and a right travel limit timer that set travel times for right travel, respectively, and the work passage is formed. After the reset operation of the aisle selection switch, when the next aisle selection operation of the aisle selection switch is performed within the time set by the first timer, each shelf device moves to form the aisle, and the aisle selection is performed. When there is no operation, the shelf device is moved by the operation of the unfolding control circuit after a set time of the first timer has elapsed, and is moved to the unfolded position limited by the travel limit timer and stopped. Electric movable shelving device.