JPH0540447A - Information display board - Google Patents

Abstract

PURPOSE:To obtain an information display board easy to mount/dismount a display device unit when installation work and maintenance/inspection are performed. CONSTITUTION:A permanent magnet 14 is mounted on the back plane of the display device unit 13, and electromagnets 18, 19 which attract or repulse the permanent magnet 14 are provided on a frame 10 which holds the display device unit 13, and the display device unit 13 can be mounted/dismounted by changing polarity by energizing the coil of the electromagnet. Positioning can be easily performed by setting the permanent magnet 14 on the back plane of the display device unit 13 as a post, setting the electromagnet 18 on the frame 10 as a spacer, and forming, ruggedness on the butting part of the post and the spacer, and also, it is possible to prevent the mounting direction from being set erroneously when mounting is performed by inverting the direction of ruggedness on the butting part alternately in the upper/lower or right/left direction of the display device unit 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information display board for displaying information such as stock prices, various bond information, market news and the like, and is particularly configured to facilitate installation work and maintenance.

[0002]

2. Description of the Related Art As shown in a front view (a) of FIG. 5 and a vertical sectional view (b) cut along a line BB in the front view, a conventional information display board has dots. -Consisting of a large number of display elements 11 arranged in a max shape, for example, 16 display elements 11 are combined into one and attached to a display element substrate 12 together with drive circuit components to form one display element unit 13, Each unit 13 is provided with a connector 31. Then, the large number of display element units 13 include the spacers 30.
It is attached to the frame 39 via.

On the other hand, on the wall surface 38, each display element unit 13
A display control board 36, which has a connector 32 to be coupled with the connector 31 of FIG.

When the display element unit 13 is attached to the frame 39, the display element units 13 are first arranged side by side in a row and attached to the frame 39 in order to screw them from the back of the display surface. It is attached to the pedestal 37 so as to be stacked.

[0005]

In the information display board assembled in this way, when some display element units 13 have failed and must be removed for replacement, it takes two persons to work. It was difficult to repair by removing the target frame 39, replacing the target display element unit 13, and again mounting the frame 39 by two people.

Therefore, the present invention was conceived in order to facilitate such installation work and maintenance / inspection, and utilizes the attracting force or repulsive force of electromagnetic force to display the display element unit 13 from the front side. It is to provide an information display board to be attached or detached.

[0007]

A permanent magnet is attached to the back surface of a display element unit, and an electromagnet that attracts or repels the permanent magnet is provided in a frame that holds the display element unit. The display element unit is attached or detached by changing it.

The permanent magnets on the back surface of the display element unit are pillars, the electromagnets of the frame are spacers, and the abutting portions of the pillars and the spacers are formed with concavities and convexities to facilitate the positioning. By alternately inverting the display element unit vertically or horizontally, it is possible to prevent an error in the mounting direction during mounting.

[0009]

The display element unit can be attached and detached by energizing the coil of the electromagnet for a short time and changing its polarity to attract or repel the permanent magnet attached to the display element unit.

[0010]

【Example】

(First Embodiment) As shown in the plan view (a) of FIG. 1 and the longitudinal sectional view (b) taken along the line BB in this front view, the dots are arranged in a dot matrix form. Composed of a large number of display elements 11, for example, 16 display elements 11 are combined into one and attached to a display element substrate 12 together with drive circuit parts to form one display element unit 13, and each unit
An optical connector 16 and a permanent magnetized support 14 of a magnetic material are attached to the back surface of 13.

On the other hand, the optical connector 16 of the display element unit 13
Display control for controlling the display element unit 13, which has a connector 17 coupled to the display element unit 13 and a magnetic material column 14 of the display element unit 13 and a magnetic spacer 18 around which a coil 19 that attracts or repels is wound. The board 10 is placed on the wall surface via the mount 37.
Mounted on 38.

The display signal sent from the display control board 10 is electro-optically converted and then transmitted to the optical connector 16 of the display element unit 13 through the optical connector 17, and is opto-electrically converted to each display element. 11 is selectively driven to display information.

The power required to turn on each display element 11 and operate the display element substrate 12 is determined by the magnetic column.
Power is supplied through 14 and the spacer 18 made of a magnetic material.

As shown enlarged in FIG. 2, a display control board
Since the coil 19 is wound around the magnetic spacer 18 on the coil 10, the coil 19 is energized for a short time so that the magnetization direction of the magnetic spacer 18 becomes the magnetization direction of the magnetic column 14. When they are matched, both are attracted and hold the display element unit 13, and thereafter, even if the energization is stopped, the attraction is continued due to the magnetic force of the pillar 14 of the magnetic material which is permanently magnetized.

When it is desired to remove the display element unit 13 for repair or replacement, the corresponding coil 19 is energized in the opposite direction for a short time to reverse the magnetization direction of the magnetic spacer 18. The permanently magnetized magnetic column 14 is
The display element unit 13 can be detached by repulsion.

(Second Embodiment) As shown in the sectional view of FIG. 3, the columns of the permanent magnetized magnetic material of the display element unit 13
A concave portion is formed at the tip of 14 and a convex portion is formed at the tip of the spacer 18 made of a magnetic material on the display control board 10, or as shown in the cross-sectional view of FIG. If the concavo-convex state of the tip is alternately reversed, the concavo-convex acts as a guide at the time of mounting and the position does not shift in the lateral direction, so positioning can be performed automatically. .

If the states of the irregularities at the tip of the support column 14 and the tip of the spacer 18 are alternately inverted up and down or left and right of the display element unit 13, it is possible to prevent an error in the mounting direction during mounting.

[0018]

As apparent from the above description of the embodiments, the display element unit can be attached to and detached from the information display board only on the front surface of the board, which is extremely convenient for installation work, maintenance and inspection. Is.

Positioning at the time of mounting can be performed by providing uneven portions on the tips of the columns 14 and the spacers 18, and by alternately reversing the states of each unevenness vertically or horizontally on the display element unit 13. It is easy, and it is possible to obtain excellent effects such as preventing mistakes in the mounting direction.

[Brief description of drawings]

FIG. 1 is a plan view (a) and a longitudinal sectional view (b) showing an embodiment of an information display board of the present invention,

2 is a longitudinal sectional view showing a part of the device shown in FIG. 1 in an enlarged manner;

FIG. 3 is a longitudinal sectional view showing another embodiment of the information display board of the present invention,

FIG. 4 is a longitudinal sectional view showing still another embodiment of the information display board of the present invention,

FIG. 5 is a plan view (a) and a vertical sectional view (b) showing an example of a conventional information display board.

[Explanation of symbols]

 11 Display element 12 Display element substrate 13 Display element unit 14 Permanent magnet column 16, 17 Connector 18 Magnetic spacer

Claims (3)

[Claims] 1. A display element unit is provided with a permanent magnet, a frame for holding the display element unit is provided with an electromagnet for attracting or repelling the permanent magnet, and the polarity of the electromagnet is changed to form the display element unit. An information display board that can be attached and detached. 2. The information display according to claim 1, wherein the permanent magnets on the back surface of the display element unit are pillars, the electromagnets of the frame are spacers, and concavities and convexities are formed at the abutting portions of the pillars and the spacers. board. 3. The information display board according to claim 2, wherein the directions of the irregularities formed on the abutting portions of the support columns and the spacers are alternately inverted vertically or horizontally of the display element unit.