JP2595550Y2 - Interlock device for control panel - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interlock device for a control panel, in which all control panels arranged in a row are interlocked.

[0002]

2. Description of the Related Art In some cases, a plurality of control panels are arranged and arranged in a row panel. In that case, it is divided into one main control panel having an interlock device and another control panel not having an interlock device.

A disconnecting section for opening and closing the main line is provided inside the main control panel, and an operating section for operating the disconnecting section is provided outside the main control panel. And a door for entering the inside of the main control panel is provided, and unless the disconnection part is disconnected, the door cannot be opened and the inside of the main control panel cannot be entered. In addition, an interlock device is provided in which the disconnecting portion cannot be closed until the operator goes out of the main control panel and closes the door.

On the other hand, the opening and closing of the doors in other control panels are not linked with the operation section outside the main control panel, and can be freely opened and closed regardless of the state of the disconnection section for opening and closing the main line. .

[0005]

However, the interlock device works only between the door of the main control panel and the disconnection part,
Since it does not act between the doors of other control panels, one worker performs maintenance and inspection of other control panels during maintenance and inspection of the main control panel. If the operator who has completed the inspection closes the disconnection section and puts the main line in a charged state, there is a risk that another worker may receive an electric shock in another control panel.

Accordingly, an object of the present invention is to provide an interlock device for a control panel which solves the above problem.

[0007]

In order to achieve the above object, a configuration of the present invention is to arrange a main control panel and another control panel side by side so that respective doors face in the same direction, and control each control panel. The panel has moving rods that extend in the direction in which the control panels are lined up and are slidably guided in the direction in which they extend, and are individually provided on the same straight line, extend in the horizontal direction perpendicular to the moving rods, and close the door in the longitudinal direction. Provide a push rod that can be pushed along, further provided a first urging means for urging the push rod in the direction opposite to the direction pushed by the door, in the main control panel a disconnection section that opens and closes the main line An internal operation unit for operating the disconnection unit is provided inside, and the door of the main control panel cannot be opened unless the disconnection unit is disconnected, and after the door is opened, the disconnection unit can be closed until the door is closed. Locking means that cannot be In addition, while the push rod is pushed by the door, the moving rod is provided with interlocking means for interlocking with the moving rod of the other control panel so as to move in the pushing direction, while the other control panel is provided with the moving rod of the main control panel. A second urging means for returning the pushed moving rod to the original position is provided,
And a rotatable support member, one end of which is rotatably coupled to the moving rod and the other end of which is provided with a restraining member provided with an engaging portion for restraining the opening of the door. A stopper is provided on the push rod to prevent the moving rod from being pushed.

[0008]

[Function] When the door of the main control panel is closed, the doors of the other control panels cannot be opened because they are restrained by the restraining members. When the disconnection section is disconnected and the door of the main control panel is opened, the other control panels are opened. Door can also be opened.

After the doors of the control panel are opened, the doors of the main control panel cannot be closed unless all the doors of the other control panels are closed, and the disconnection is required unless the doors of the main control panel are closed. The part cannot be closed.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings.

The structure of the control panel interlock device according to the present invention is shown in FIGS. As shown in FIG. 1, the main control panel 1a and other control panels 1b, 1c.
are arranged side by side in the left-right direction so as to face the same direction. Moving rods 3a, 3b, 3c,... Extending in the left-right direction are individually provided on each control panel, and all of them are mounted on a housing 4 via a support fitting 5 or the like as shown in FIGS. It is slidably supported. Also, push rods 6a, 6b, 6c,... Extending in the horizontal direction perpendicular to the moving rods 3a, 3b, 3c, are arranged below the moving rods as shown in FIGS.
As shown in FIG. 9, it is slidably supported by the frame 7. On the door side of the push rods 6a, 6b, 6c,..., A cushioning material 8 which is in contact with the inside of the doors 2a, 2b, 2c,... Is attached, respectively, to push back the push rod 6a pushed by the door 2a. A spring 9a as one urging means is provided between a spring hook 10 projecting to the left of the push rod 6a and a fixed portion (not shown) as shown in FIG. 4, and pushes pushed by the doors 2b, 2c. The springs 9b, 9c... As first urging means for pushing back the rods 6b, 6c... Project downward from the push rods 6b, 6c.
0 and a fixed portion (not shown). other than this,
As shown in FIGS. 5 and 8, the doors 2 a, 2 b, 2 c...
An engagement member 23 is provided to prevent the doors 2a, 2b, 2c ... from opening by restricting movement of the doors 2b, 2c ... in the opening direction.

The above components are provided in any control panel. Next, components provided only in the main control panel 1a will be described. When the door 2a of the main control panel 1a is closed, the push rod 6a pushed upward in FIG. 4 pushes the moving rod 3a rightward to move the moving rods 3b and 3c in FIG.
4 are provided as an interlocking means for interlocking so that... Are sequentially pushed rightward. As shown in FIGS. 4, 5 and 6, the bent portion of the lever 11 is rotatably supported via a column 12, a collar 13, a flat washer 14 and a bolt 15 connected to the frame 7.
A bolt 18 having a washer 17 inserted therein is inserted into an elongated hole 16 formed at one end of the lever 11 and screwed into the push rod 6a, while an elongated hole 19 formed at the other end of the lever 11 projects from the moving rod 3a. The pin 20 thus formed is inserted.

Next, components provided only in the other control panels 1b, 1c... Will be described. As described above, the main control panel 1a
When the door 2a is closed, the moving rods 3a, 3b, 3c... Are sequentially pushed.
As shown in FIG. 7, the frame 24 and the moving rods 3b, 3c serve as second urging means for returning the b, 3c.
... In order to restrict the opening of the doors 2b, 2c... By pressing the rods 3b, 3c.
5 has a bolt 26 attached to a stay 26 attached to the frame 7.
9, one end of a restraining member 25 is rotatably mounted via a bolt 30, a collar 31, and a flat washer 32, as shown in FIG. , 3c..., While a notch 33 is formed at the other end of the restraining member 25 as an engaging portion. And the hook part 34 for this notch part 33 to engage is provided inside the doors 2b, 2c .... Door 2b, 2
In order to prevent the doors of the main control panel from being closed by pushing the moving rods 3b, 3c. A projecting bolt 36 is provided, while the push rods 6b, 6c.
As shown in FIG. 7, a stopper 35 protruding toward the restraining member 25 is provided.

In addition, a disconnecting section for opening and closing the main line and an operating section are provided inside and outside the main control panel. If the disconnecting section is not disconnected, the door of the main control panel cannot be opened. The point that the disconnection section cannot be closed until the door is closed after the door is opened is the same as the conventional one.

Next, the operation of the interlock device of the control panel will be described. To maintain and inspect the control panel, a main line is disconnected by operating an operation unit (not shown) arranged outside the main control panel. Then, when the main line is closed, the door of the main control panel, which cannot be opened because it is interlocked with the disconnection portion, can be opened.

When the door 2a of the main control panel 1a is opened, the left side of the door 2a moves downward in the figure as shown in FIG.
At the same time, the push rod 6a is moved down by the urging force, and at the same time, the moving rod 3a connected via the lever 11 moves to the left. Then, the moving rods 3b, 3c... Of the other control panels 1b, 1c, which have been forcibly pushed rightward by the moving rod 3a in FIG. 1, move leftward in the figure by the urging force of the spring 24 shown in FIG. And one end of the moving rod 3b, 3
.. rotate counterclockwise about the bolt 29, and the notch 33 comes off from the hook 34 provided on the doors 2b, 2c. Thereby, the doors 2b, 2
c ... are released from the restraint by the restraint member 25 and can be freely opened. That is, if the door 2a of the main control panel 1a is not opened, the doors 2b, 2c... Of the other control panels 1b, 1c.
Can not be opened, and the disconnection section must be disconnected to open the door of the main control panel as described above, so the disconnection section is always disconnected when any of the control panel doors can be opened. Therefore, the occurrence of an electric shock accident not only in the main control panel but also in other control panels is prevented.

Next, when closing the door 2a of the main control panel 1a shown in FIG. 4, the push rod 6a is pushed by the door 2a to move upward in the figure and at the same time the moving rod 3a moves rightward. Therefore, the moving rods 3b, 3c... Of the other control boards 1b, 1c... Shown in FIG. 7 must also be moved to the right in the figure. At this time, another control panel 1 shown in FIG.
When any one of the doors 2b, 2c... of the b, 1c.
are pushed downward in the figure as shown by the two-dot chain line, and stoppers 35 provided on the push rods 9b, 9c.
Abuts on the bolt 36 to prevent the restraining member 25 from rotating clockwise, that is, to prevent the moving rods 3b, 3c ... from moving rightward. Therefore, one worker maintains other control panels,
Even if another worker tries to close the door of the main control panel without knowing that the inspection is being performed, it cannot be closed. From the above, the door 2a of the main control panel 1a cannot be closed unless all the doors 2b, 2c... Of the other control panels 1b, 1c. If the switch is not closed, the disconnection section cannot be closed, so that the occurrence of an electric shock accident not only in the main control panel but also in other control panels is prevented.

[0018]

As can be seen from the above description, according to the control panel interlock device of the present invention, the locking means for conditioning the relationship between the operation part of the main control panel and the door, the door of the main control panel, and the like Since the means for conditioning the door of the control panel is provided, it is possible to prevent not only an electric shock accident in the main control panel but also an electric shock accident in other control panels.

[Brief description of the drawings]

FIG. 1 is a plan view of a main part of a control panel according to the present invention in a row panel configuration.

FIG. 2 is a view taken in the direction of arrows AA in FIG. 1;

FIG. 3 is a view taken in the direction of arrows BB in FIG. 2;

FIG. 4 is an enlarged view of a portion C in FIG. 1;

FIG. 5 is a view as seen from an arrow E in FIG. 4;

FIG. 6 is a view as seen from the direction of arrow F in FIG. 5;

FIG. 7 is an enlarged view of a portion D in FIG. 1;

FIG. 8 is a view taken in the direction of the arrow G in FIG. 7;

FIG. 9 is a view as viewed in the direction of the arrow H in FIG. 8;

[Explanation of symbols]

 1a Main control panel 1b, 1c Other control panel 2a, 2b, 2c Door 3a, 3b, 3c Moving rod 6a, 6b, 6c Push rod 9a, 9b, 9c Spring 11 Lever 24 Spring 25 ... Restriction member 33 ... Notch 34 ... Hooking part 35 ... Stopper 36 ... Bolt

Claims (1)

(57) [Scope of request for utility model registration] 1. A main control panel and another control panel are juxtaposed so that respective doors face in the same direction, and each control panel extends in a direction in which the control panels are arranged and is slidably guided in the extending direction. Provided separately on the same straight line,
And a push rod that extends in the horizontal direction perpendicular to the moving rod and can be pushed along the length direction by closing the door, and further urges the push rod in a direction opposite to the direction pushed by the door. The main control panel is provided with a biasing means, and a disconnection section for opening and closing the main line is provided inside the main control panel, and an operation section for operating the disconnection section is provided outside.If the disconnection section is not disconnected, the door of the main control panel can be opened. Locking means which cannot close the disconnection portion after opening the door and closing the door is provided, and furthermore, when the push rod is pushed by the door, the moving rod moves in the direction of pushing the moving rod of another control panel. While providing interlocking means for interlocking
The other control panel is provided with a second urging means for returning the moving rod pushed by the moving rod of the main control panel to the original position, and is rotatably supported and one end is rotatably movable. The other end is provided with a restraining member provided with an engaging portion for restraining the opening of the door, and a stopper is provided on the push rod to prevent the moving rod from being pushed when the door is open. Characteristic control panel interlock device.