JPH10304939A - Driving control device of electric moving shelf device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a driving control device of an electric moving shelf device with good operability and low manufacturing costs by reducing switches or the like to the utmost, and by making wiring to a minimum. SOLUTION: An electric moving shelf device is provided with two or more moving shelves 3a and 3b to move in crosswise direction with a fixed shelf 2 on the back side, where driving motors 8a and 8b for moving the moving shelves 3a and 3b are provided on each of the moving shelves 3a and 3b. In this case, moving switches 18a, 19a, 18b, and 19b, which are combinedly used for safety stop switches, are provided on each moving shelf. A control circuit is provided for controlling the motors to move and safely stop the moving shelves moving in crosswise direction with respect to the fixed shelf by the switches 18a, 19a, 18b, and 19b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drive control device for an electric moving shelf device.

[0002]

2. Description of the Related Art A conventional electric moving shelf apparatus in which a plurality of moving shelves are provided so as to be movable in the left-right direction with a fixed shelf as a back side, and a drive motor for moving these moving shelves is provided in each of the moving shelves. There are a lot of switches on the shelf, and a switch to move the shelf to the right, a switch to move the shelf to the left, a safety bar (stop device) on the left and right, and a stop switch. In addition, wiring for connecting the motors via these switches and the control circuit is attached in a complicated manner. Therefore, the operability is extremely poor and the wiring process takes time,
As a result, there has been a problem that the production cost is high.

[0003]

SUMMARY OF THE INVENTION Accordingly, the present invention solves the above-mentioned conventional problems and reduces the number of switches as much as possible, so that operability is good and wiring processing is minimized to reduce the manufacturing cost. An object of the present invention is to provide a drive control device for an electric moving shelf device that can be suppressed.

[0004]

In order to achieve the above object, according to the first aspect of the present invention, a plurality of movable shelves are provided so as to be movable left and right with a fixed shelf as a back side, and these movable shelves are moved. In an electric moving shelf device in which a drive motor is provided on each of the moving shelves, a moving switch also serving as a safety stop switch is provided on each of the moving shelves, and the moving switch moves the moving shelf in the left-right direction with respect to the fixed shelf. And a control circuit for controlling the motor so as to safely stop.

According to a second aspect of the present invention, in the first aspect, when the moving shelf is moved by a moving switch of an arbitrary moving shelf, all the other moving shelves adjacent to the moving side also move in the same direction. I have.

According to a third aspect of the present invention, in the first or second aspect, the moving switch is provided on a side of the moving shelf in the moving direction and a side opposite to the moving direction, and one of the switches is for moving the moving shelf to the right. The other is a switch for moving the movable shelf to the left.

[0007]

An embodiment of the present invention will be described with reference to the drawings. In FIGS. 1 and 2, reference numeral 1 denotes an electric movable shelf device, which includes a fixed shelf 2 and movable shelves 3a and 3b arranged so as to be movable left and right with the fixed shelf as the back side. The fixed shelves 2 have a width corresponding to the movable shelves 3a and 3b, respectively, and are arranged side by side on a fixed shelves base 4. The movable shelves 3a and 3b are installed side by side on a movable shelf base 5, and can be moved on rails 6 provided on the base via casters (not shown). Drive motors 8a, 8b capable of rotating forward and backward are provided on upper portions of the moving shelves 3a, 3b, respectively.
Is installed. The motors 8a, 8b are detachably screwed and fixed to the upper surfaces of the movable shelves 3a, 3b so that the motor shaft 9 projects toward the fixed shelf 2. A pinion gear 10 for driving is mounted on the motor shaft 9 while being prevented from rotating by a key.

On the other hand, these motors 8
A common rack 12 meshing with the pinion gears 10a and 8b is attached to the bracket 13 so that the pinion gear 10 meshes from below. The bracket 13 is detachably screwed and fixed to the upper surface of the fixed shelf 2. A guide rail 15 is detachably screwed and fixed to the upper surface of the fixed shelf 2 together with the bracket 13. A guide member 16 is detachably provided on the movable shelf 3a, 3b by the bracket 14 on the guide rail 15. Is engaged. As the guide member 16, for example, a guide roller is preferable. Although not shown, one guide member 16 is provided on each side of each of the movable shelves 3a and 3b.

Touch switches 18a, 19a, 18b, and 19b for moving the moving shelves are provided on both side surfaces of the moving shelves 3a and 3b. When the motors 8a and 8b are driven by these switches, the rack on which the pinion gear 10 meshes. The movable shelves 3 a and 3 b move in the left-right direction with respect to the fixed shelf 2 by rotating on the top 12. In this embodiment, the touch switches 18a and 18b on one side
Touch switches 19a and 19b on the other side are switches for moving the moving shelves 3a and 3b to the right. switch
18a, 19a, 18b, and 19b also serve as safety stop switches. 20 is a control box, and switches 18a, 19a, 18b,
A control circuit 22 as shown in FIG. 3 for controlling the driving and stopping of the motors 8a and 8b by 19b is accommodated.

The control circuit 22 is a switch for the movable shelves 3a and 3b.
18a, 19a, 18b, 19b, motors 8a, 8b, and a two-phase AC power supply, and switches 18a, 19a, 18
b, 19b, the relay switches 1 to
The control signal is output to the motors 8a and 8b through the relay switch 4, and the safety stop switch is operated through the relay switches 5 and 6 to cut off the motor drive current and stop the drive of the motors 8a and 8b, thereby ensuring safety. It is possible to plan.

With the above configuration, for example, in FIG. 4A, when it is desired to view a document or the like in the fixed shelf 2 on the back of the movable shelf 3a, the movable shelves 3a and 3b are moved to the right. It is necessary to open the zone A. At this time, the switch 19a of the movable shelf 3a is turned on. When the switch 19a is turned on, the input signal turns on the relay switches 1 and 3 of the control circuit 22 to rotate the motors 8a and 8b. As a result, the movable shelves 3a and 3b are moved to the right at the same speed, and when the movable shelf 3b comes to a predetermined position on the right end of the zone C as shown in FIG. , 8b are stopped. As a result, the zone A is opened, the front of the fixed shelf 2 on the back of the movable shelf 3a is opened, and the documents and the like inside can be seen.

Next, when opening the zone C in FIG. 4 (B), the switch 18b of the movable shelf 3b is turned on contrary to the above. When the switch 18b is turned on, the input signal turns on the relay switches 2 and 4 of the control circuit 22, and the motor 8a,
8b is driven in reverse rotation. As a result, the moving shelves 3a and 3b are moved to the left at the same speed, and the moving shelves 3a are
As shown in (A), when a predetermined position on the left end of the zone A is reached, a limit switch (not shown) is activated and the driving of the motors 8a and 8b is stopped. Thereby, the zone C is opened. In addition, when opening zone B in FIG.
The switch 18a of a is turned on. When the switch 18a is turned on, the input signal turns on the relay switch 2 of the control circuit 22 to drive the motor 8a in reverse rotation. As a result, the movable shelf 3a is moved to the left, and when the movable shelf 3a comes to a predetermined position on the left end of the zone A as shown in FIG. 4C, a limit switch (not shown) is operated to stop driving the motor 8a.
Thereby, the zone B is opened. By moving any of the movable shelves 3a and 3b in the left-right direction in this way, the fixed shelf 2 on the back surface can be used.

In the operation described above, the moving switches 18a, 19a, 18b, 19 which are on the side opposite to the moving side of the moving shelves 3a, 3b.
b are all safety stop switches. Therefore, FIG.
In (A), there is a person in the zone C on the moving tip side of the moving shelves 3a and 3b, and the switch 18b of the moving shelf 3b touches the person, or the person accidentally touches the switch 18b of the moving shelf 3b to turn on. Then, both the relay switch 5 and the relay switch 6 of the control circuit 22 are turned on, whereby the safety stop switch is operated, the motor driving current is cut off, and the driving of the motors 8a and 8b is stopped.

In this embodiment, two movable shelves 3a and 3b have been described for easy understanding. However, if there are a plurality of movable shelves, any number of three or more movable shelves can be implemented.
Further, the control circuit 22 also shows a preferred example, and it goes without saying that other circuit configurations are not excluded.

[0015]

According to the first, second, and third aspects of the present invention, the number of switches is reduced as much as possible in the prior art, so that operability is improved. In addition, since wiring processing can be minimized, there is an excellent effect that manufacturing costs can be reduced.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing an embodiment of the present invention.

FIG. 2 is a side sectional view of a main part enlarged in the above.

FIG. 3 is a block diagram showing a control system.

FIGS. 4A to 4C are explanatory diagrams of an operation.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Electric moving shelf apparatus 2 Fixed shelf 3a, 3b Moving shelf 4 Fixed shelf base 5 Moving shelf base 6 Rail 8a, 8b Drive motor 9 Motor shaft 10 Pinion gear 12 Rack 13, 14 Bracket 15 Guide rail 16 Guide member 18a, 18b, 19a, 19b Touch switch (moving switch) 20 Control box 22 Control circuit

Claims (3)

[Claims] 1. An electric moving shelf device, wherein a plurality of moving shelves are provided so as to be movable in the left-right direction with a fixed shelf as a back side, and a drive motor for moving these moving shelves is provided for each of the moving shelves. A moving switch serving also as a safety stop switch is provided for each of the moving shelves, and a control circuit for controlling the motor so that the moving shelf moves in the left-right direction with respect to the fixed shelf by this moving switch and stops safely is provided. A drive control device for an electric moving shelf device, characterized in that: 2. The electric moving shelf device according to claim 1, wherein when the moving shelf is moved by a moving switch of an arbitrary moving shelf, all of the other moving shelves adjacent to the moving side move in the same direction. Drive control device. 3. A moving switch is provided on the side of the moving shelf in the direction of movement and on the side opposite to the moving shelf, one of which is a switch for moving the moving shelf to the right and the other for moving the moving shelf to the left. 3. The switch according to claim 1, wherein
A drive control device for the electric moving shelf device according to any one of the preceding claims.