JPH08289419A - Switchboard - Google Patents

Abstract

PURPOSE: To provide a switchboard in which means for locking/unlocking a door moves smoothly. CONSTITUTION: A handle provided on the outside of a door 2 is coupled through a rotary shaft 11 with a rotary plate 12 having an elongated hole 15. A pin 14 provided for a single rod 13 being guided up and down through a guide member 20 is inserted into the elongated hole 15. The rod 13 is also provided with an engaging pin 17 being inserted into an engaging hole 19 made through an engaging plate 18.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switchboard and has improved restraint means for restraining the opening of a door.

[0002]

2. Description of the Related Art A switchboard for accommodating electrical equipment is provided with a door that can be opened and closed. Restraining means is provided because the door will cause problems if it is opened by itself.

FIG. 2 shows a conventional restraint means in a switchboard. In the figure, 1 is a housing, and 2 is a door which is attached to the housing 1 via a hinge (not shown) so as to be openable and closable. A pair of rods 4 are provided inside the door 2 so as to be able to move up and down via a guide member 3, and both ends of a rotating plate 6 fixed to a handle 5 that rotatably penetrates the door 2 are respectively provided with connecting members 7. Connected to the rod 4. On the other hand, both ends of a U-shaped engaging member 8 are coupled to the upper and lower portions of the casing 1 at the vertically extending portions thereof.

In such a switchboard, when the rotating plate 6 is lengthened in the vertical direction by turning the handle 5 as shown in FIG. 2A, the rod 4 is projected vertically to engage with the upper and lower engaging members 8. The door 2 is restrained and does not open when engaged. When the rotating plate 6 is rotated clockwise from the state shown in FIG. 2A, the rod 4 is pulled to come out of the upper and lower engaging members 8, and the door 2 can be freely opened.

[0005]

However, as shown in FIG.
Since the restraint means occupies a lot of space inside the door as shown in, the arrangement of the equipment inside the switchboard must be taken into consideration. Moreover, the movement of the handle is not smooth because there are many rotating parts.

Therefore, an object of the present invention is to provide a switchboard which solves the above problems.

[0007]

The structure of the present invention for achieving the above object is to provide an openable / closable door in an opening of a housing, and fix a handle to the outside of a rotating shaft penetrating the door. The inside of the door is fixed with a single rod movably in the vertical direction and a pin perpendicular to the rod is fixed to the rod. The pin is inserted into the long hole, and the housing is formed with an engaging portion with which the tip of the rod is engaged.

[0008]

When the handle is rotated in one direction, the rod is raised, and when it is rotated in the other direction, the rod is lowered. Then, as the rod moves up or down, the upper end or the lower end of the rod slides into the engaging portion formed on the housing. For this reason, the door will be restrained or opened.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in the drawings.

The structure of the switchboard according to the present invention is shown in FIG. As shown in the drawing, a rotary shaft 11 penetrates the door 2, and a handle (not shown) is fixed to the rotary shaft 11 outside the door 2 and a rotary plate is attached to the rotary shaft 11 inside the door 2. One end side of 12 is fixed. An elongated hole 15 is formed on the other end of the rotating plate 12. This long hole 15 is used for the rotary shaft 1.
It is formed long along a straight line passing through the center of 1.

Inside the door 2, a single rod 1 is also provided.
3 is provided so as to be vertically movable via a guide member 20. A pin 14 is fixed to the rod 13 at a right angle to the rod 13, and the pin 14 is inserted into the elongated hole 15. The rod 13 has a stay 1 long in the horizontal direction.
Two engagement pins 17 are provided so as to project upward through the pin 6.

On the other hand, an engaging plate 18 extending in the horizontal direction is attached to the housing to which the door 2 is attached, and an engaging hole 19 as an engaging portion is provided at a position of the engaging plate 18 corresponding to the engaging pin 17. Has been formed.

Next, the operation of such a switchboard will be described. When the tip of the rotating plate 12 occupies the position indicated by A, the rod 1
3 moves up, and the engagement pin 17 is inserted into the engagement hole 19. Therefore, the door 2 is restrained and cannot be opened.

Next, the turning plate 12 is turned counterclockwise in FIG. 1 by turning a handle (not shown), and the turning plate 12 is rotated.
When the tip of the occupies the position indicated by B, the rod 13 descends and the engaging pin 17 comes out of the engaging hole 19. For this reason,
The door 2 can be opened freely.

Although the engaging pin is attached to the rod in the present embodiment, the tip of the rod may be directly inserted into the engaging portion.

[0016]

As can be seen from the above description, according to the switchboard of the present invention, the restraint means is constructed by inserting the pin provided on the vertically movable rod into the elongated hole formed in the rotary plate integrated with the handle. As a result, the rod is unitary, and the movement is only a simple ascending / descending movement, which makes the movement smooth. Further, since the restraint means has a simple structure, it has high strength.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a main part of a switchboard according to the present invention.

FIG. 2 relates to a main part of a conventional switchboard, (a) is a front view,
(B) is a right side view.

[Explanation of Codes] 2 ... Door 11 ... Rotating Shaft 12 ... Rotating Plate 13 ... Rod 14 ... Pin 15 ... Long Hole 17 ... Engaging Pin 19 ... Engaging Hole

Claims (1)

[Claims] 1. A door that can be opened and closed is provided in an opening of a housing, a handle is fixed to the outside of a rotating shaft that penetrates the door, and a rotating plate is fixed to the inside, and a long hole is formed in the rotating plate. On the other hand, while forming a single rod movably in the vertical direction inside the door, a pin perpendicular to the rod is fixed to the rod, the pin is inserted into the long hole, and the tip of the rod is attached to the housing. A switchboard characterized in that an engaging portion for engaging is formed.