JP2001251710A - Unit position indication in distribution panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the unit position indication in a distribution panel for automatically and continuously displaying the position of a unit. SOLUTION: A unit 9 is accommodated in a unit chamber 3 of a distribution panel, so that the unit 9 can be pulled out, a movable lever 16 and an operation part for operating the movable lever 16 so that the lever moves horizontally are provided, at the same time a position display panel 24 that moves in linking with the movement of the movable lever 16 is provided, and engaging part, for moving the movable lever 16 according to the movement of the unit 9 in contact with the movable lever 16, is provided in the unit chamber 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a unit draw-out position display device for a switchboard in which units are drawably housed in a unit room.

[0002]

2. Description of the Related Art In general, in a switchboard such as a control center, control devices for monitoring and controlling a controlled function of a motor or the like to be controlled are grouped into a plurality of units corresponding to the respective controlled device categories. Provided as a unit device,
Each of these unit devices is provided with a drawer device to be housed in the control panel or pulled out from the control panel. There have conventionally been various types of unit withdrawing devices, but usually, the unit can be set at three positions of connection, test, and withdrawal. And the position can be displayed manually. In both the connection and test positions, the unit is configured to be locked in that position by a locking mechanism. Also, the position of the unit is manually displayed.

[0003]

However, the prior art has the following problems. (1) Since the position of the unit is displayed manually, it is not only troublesome,
Operation is dangerous. (2) Since the position of the unit is not displayed in conjunction with the storing operation or the pulling-out operation of the unit, the position cannot be visually recognized continuously, resulting in poor operability. The present invention has been made in order to solve such a problem, and an object of the present invention is to provide a switchboard unit position display device that can automatically and continuously display the position of a unit. It is.

[0004]

In order to solve the above-mentioned problems, a unit position display device for a switchboard according to the present invention has a unit housed in a unit room of the switchboard so as to be able to be pulled out, and the unit has a movable lever and a movable lever. An operation section for horizontally moving the movable lever is provided, and a position display plate that moves in conjunction with the movement of the movable lever is provided, and the unit chamber is brought into contact with the movable lever in accordance with the movement of the unit. A locking portion for moving the movable lever is provided.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a control center in an embodiment of the present invention, FIG. 2 is a plan view showing a unit and a unit room in the embodiment of the present invention, FIG. 3 is a front view showing the unit, and FIG. Plan view, FIG. 5
FIG. 6 is a side sectional view showing a state where the unit frame is located at the connection position, FIG. 6 is a plan view of a main part in FIG. 5, FIG. 7 is a side sectional view showing a state where the unit frame is located at the test position, and FIG. FIG. 9 is a plan view of a main part in FIG. 7, FIG. 9 is a side sectional view showing a state in which the unit frame is pulled out, and FIG. 10 is a front view showing an interlocking relationship between the instruction pin and the position display plate. In the figure, reference numeral 1 denotes a box-shaped panel frame constituting a power distribution panel such as a control center.
Are divided into a plurality of unit rooms 3 by shelves 2 provided in a plurality of upper and lower stages. On the rear side of the unit room 3, three vertical buses 5, that is, three vertical buses 5 are arranged via a bus cover 4, and each of the vertical buses 5 passes through an opening 4 a formed in the bus cover 4. We are facing 3. A plate-like guide rail 6 extending in the front-rear direction is provided on the upper surface of the shelf 2 constituting the bottom of the unit chamber 3.
A locking piece mounting hole 7 is formed in the shelf 2, and an L-shaped locking piece 8 is mounted in the locking piece mounting hole 7 from the lower surface side of the shelf 2. The locking piece 8 protrudes slightly, for example, about several millimeters from the upper surface of the shelf 2. On the other hand, 9 is a unit housed in the unit room 3, and the unit 9 is configured by attaching various control instruments (not shown) to a unit frame 10. A leg is extruded from the bottom plate of the unit frame 10, and the unit frame 10 is connected to the shelf 2 via the leg.
And is slidable in the front-rear direction (in / out direction). Here, the unit frame 10 has a guide hole 1 formed from the bottom plate 10a to the back plate 10b.
The guide rail 6 is inserted into the unit room 3 so as to be inserted into the unit room 3. Bottom plate 1 of unit frame 10
0a, as shown in FIG.
2. An escape prevention plate 13 is provided upright, and an operation shaft 15 is inserted and supported in a hole 14 formed therein. At the front end of the operation shaft 15 protruding toward the front side of the support plate 12, a head 15a as an operation unit is provided. The central portion of the operation shaft 15 is subjected to drawing to prevent the operation shaft 15 from coming off. The tip of the operating shaft 15 is tapered to facilitate insertion into the guide rail.
On the other hand, a movable lever 16 as a display device mechanism is mounted on the left side of the operation shaft of the unit frame 10. The movable lever 16 is connected to the bottom plate 10 of the unit frame 10.
a is inserted together with a torsion coil spring 18 into a support column 17 provided at a. One end of the movable lever 16 is a tongue, and is hooked on the bottom plate 10a and the arc-shaped notch 10d. A notch 16a is provided on the opposite side of the movable lever 16, and a slide beam 19 is engaged with the notch 16a. This slide beam 19
In the unit frame 10, support plates 20 and 21 are erected at the front edge of the bottom plate portion 10a.
The slide beam 19 is inserted into and supported by the square holes formed in 0 and 21. Furthermore, this slide beam 19 includes
An instruction pin 22 and a lever support pin 23 are inserted. Reference numeral 24 denotes a position display plate provided on the front surface of the unit 9, and the instruction pin 22 moves within an oblong notch 24a provided inside. Reference numeral 25 denotes a power plug connected to the vertical bus 5.

Next, the operation of the above configuration will be described.
When the unit 9 is inserted into the unit chamber 3 and fixed at the connection position, first, the guide hole 10 c of the unit frame 10 is inserted into the guide rail 6 of the shelf 2, and the unit 9 is inserted into the unit chamber 3. Push in. And the operation shaft 15
When the unit 9 is rotated clockwise, the unit 9 is moved to the rear by screwing the male screw of the operation shaft 15 and the female screw of the guide rail 6, and the unit 9 is locked at the connection position shown in FIGS. . On the other hand, as the position display device, at the same time as the insertion of the unit 9, the movable lever 16 in the unit frame 10 is pressed against the locking piece 8 on the shelf 2, and the movable lever 16 is It causes a rotational movement and is rotated counterclockwise. However,
This rotation is applied to the lever support pin 2 on the slide beam 19.
3 and the slide beam 19 horizontally moves rightward. The pointing pin 22 on the slide beam 19 also moves in the same manner, and moves inside the position display plate 24 at the bottom of the unit frame 10. In this way, the position of the unit 9 is displayed while the unit 9 moves to the back side. When the unit 9 is pulled out of the unit chamber 3, the operation shaft 15 is rotated counterclockwise from a state where the unit frame 10 is fixed at the connection position or the test position. As a result, the movable lever 16 moves the slide beam 1 by opening the torsion coil spring 18.
9 is horizontally moved to the left. Therefore, the display of the “position display device” moves from the connection to the extraction position via the test position.

[0007]

As described above, according to the present invention, the following effects can be obtained. (1) Since the position display such as storing and pulling out the unit is automatically and continuously performed in conjunction with a series of operations, the operation load is reduced and the operation load is reduced. Further, there is no erroneous display and no danger is caused in the operation. (2) The operability is good because the positions of the units can be viewed continuously.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a control center according to an embodiment of the present invention.

FIG. 2 is a plan view showing a unit and a unit chamber in the embodiment of the present invention.

FIG. 3 is a front view showing a unit.

FIG. 4 is a plan view showing the position display device.

FIG. 5 is a side sectional view showing a state where the unit frame is located at a connection position.

FIG. 6 is a plan view of a main part in FIG. 5;

FIG. 7 is a side sectional view showing a state where the unit frame is located at a test position.

FIG. 8 is a plan view of a main part in FIG. 7;

FIG. 9 is a side sectional view showing a state where the unit frame is pulled out.

FIG. 10 is a front view showing an interlocking relationship between an instruction pin and a position display plate.

[Explanation of symbols]

 1 panel frame, 2 shelf board, 3 unit room, 4 busbar cover, 4a opening, 5 vertical busbar, 6 guide rail, 7 locking piece mounting hole, 8 locking piece, 9 unit, 10 unit frame, 10a bottom plate , 10b back plate, 10c guide hole, 10d arc-shaped notch, 11, 12 support plate, 13 slip-off prevention plate, 14 hole, 15 operation shaft, 15a head, 16 movable lever, 16a notch, 17 support column, 18 torsion coil spring, 19 slide beam, 20, 21 support plate, 22 indicator pin, 23 lever support pin, 24 position display plate, 24a notch

Claims (1)

[Claims] A unit is provided in a unit room of a switchboard so as to be able to be pulled out, and the unit is provided with a movable lever and an operation unit for horizontally moving the movable lever, and moves in conjunction with the movement of the movable lever. Provide a position display board,
A unit position display device for a switchboard, wherein a locking portion that contacts the movable lever and moves the movable lever in accordance with the movement of the unit is provided in the unit chamber.