JP3332029B2 - Screen fixing device and its fixing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-screen screen fixing apparatus for forming a large screen by stacking a plurality of screens vertically and horizontally and a fixing method thereof.

[0002]

2. Description of the Related Art A multi-screen device is designed to display a composite image by projecting image light enlarged and projected from a plurality of projectors onto a front screen. In general, as the displayed image becomes larger, a plurality of screens are stacked vertically and horizontally to increase the area of the entire screen.

In this case, there is a frame in which a projector is installed, and a display unit comprising a screen frame fixed to an individual screen for projecting an image projected from the projector and attached to a front opening of the frame is provided. A plurality of display units are stacked vertically and horizontally with the front of the screen aligned, and the frames are fastened and fixed with screws etc. at the rear of the display unit,
It is designed to enlarge the screen.

[0004]

Conventionally, in this type of multi-screen device, the individual screen frames in each display unit are simply attached to the frames and are independent of each other, so that the screens between adjacent screens are not connected to each other. A non-image zone, a so-called joint, is generated in the gap between. The width of the joint depends on the mounting accuracy of the screen frame to the frame, and there is a drawback that a space is generated between adjacent screen frames, and as a result, the joint width becomes large. There is also a disadvantage that the joint width varies depending on the location, and that the screen is difficult to see due to the variation of the joint width.

In view of the above-mentioned conventional problems, an object of the present invention is to provide
It is an object of the present invention to provide a multi-screen screen fixing device and a fixing method thereof, in which joint widths and variations between adjacent screens are minimized and good display quality is always obtained.

[0006]

According to the present invention, there is provided a screen fixing apparatus comprising: a frame in which a projector is installed; and a screen for projecting an image projected from the projector, which is fixed to a front opening of the frame. It has a display unit consisting of a screen frame,
What is claimed is: 1. A multi-screen device comprising a plurality of display units stacked vertically and horizontally with the front surfaces of said screens aligned, and temporarily fixing said frame and said screen frame in said display unit. First connecting and fixing means for fixing the adjacent frames, and second connecting and fixing means for fixing the adjacent screen frames.
Connection fixing means.

Further, according to the method of fixing a screen fixing device of the present invention, there is provided a frame in which a projector is installed, and a screen frame which is fixed to a front opening of the frame by fixing a screen for projecting an image projected from the projector. A multi-screen device comprising a display unit comprising: a plurality of the display units stacked vertically and horizontally with the front surfaces of the screens aligned, wherein the frame and the screen frame in the display unit Are temporarily fixed by temporary fixing means, then the adjacent frames are fixed by the first connecting and fixing means, and then the adjacent screen frames are fixed by the second connecting and fixing means. .

[0008]

According to the present invention, in a multi-screen apparatus in which a plurality of display units are stacked vertically and horizontally, a main body frame and a screen frame are temporarily fixed in the display unit, and then are adjacent to each other. Since the screen frames are fastened and fixed, no space is generated between adjacent screens, the joint width can be minimized and uniform, and good display quality can always be obtained.

[0010]

Next, the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing the overall configuration of an embodiment of the present invention, FIG. 2 is a sectional view showing the configuration of one display unit in FIG. 1, and FIG. 3 is an enlarged view of a portion A in FIG. It is sectional drawing.

The multi-screen device 101 shown in FIG.
Is a display unit 10 comprising a combination of a screen 1, a screen frame 2, a body frame 3, and a projector 4.
As one unit, and a plurality of display units 10 are vertically and horizontally stacked and fixed in a state where the front surfaces of the respective screens 1 are aligned. The multi-screen device 101 is installed such that the whole is embedded in the wall 8 and the outer peripheral portion of the front is bordered by the outer frame 9.

The structure of each display unit 10 will be described. As shown in FIG. 2, a main body frame 3 in which a projector 4 is installed and a rectangular screen 1 for projecting an image projected from the projector 4 are shown. There is a screen frame 2 which is fixed by fitting the screen 1 into a groove (not shown) and attached to the front opening of the main body frame 3. The projector 4 includes electronic components and mechanical components such as a lens group and a cathode ray tube (not shown), and image light projected from the cathode ray tube and enlarged by the lens group is projected on the rear surface of the screen 1 disposed in front. .

In the screen frame 2, as shown in FIG.
When the display units 10 are stacked vertically and horizontally, they have screws 5 and nuts 6 for fastening and fixing the adjacent screen frames 2, and counterbore holes 7 for mounting the other screws 5 and nuts 6 are provided. Have been.

Further, as members for fastening and fixing, as shown in FIG. 2, screws 11 and nuts 12 for temporarily fixing the main body frame 3 and the screen frame 2 and screws for fastening and fixing the adjacent main body frames 3 to each other. 13 and nut 1
And 4.

The main body frame 3 is opened in four directions on the front outer periphery, that is, in four directions of up, down, left and right, and the screen frame 2 opposed thereto is also framed in four directions of the outer periphery, up, down, left and right. Screw 5, nut 6 and counterbore 7
Is provided.

Next, a description will be given of a screen fixing operation in which a plurality of the display units 10 configured as described above are stacked vertically and horizontally and fixed to form a multi-screen device 101.

First, the screen 1 is fixed to the screen frame 2, and the screen frame 2 is opposed to the opening of the main body frame 3 in which the projector 4 is installed.
By temporarily fixing the screen frame 2 to the main body frame 3 with the screws 11 and the nuts 12 shown in FIG.
0 is formed.

Next, as shown in FIG. 1, a plurality of the display units 10 thus formed are stacked vertically and horizontally to form a multi-screen, and the adjacent main body frames 3 are connected to each other by screws 13 and nuts 14 shown in FIG. Fasten up, down, left and right and tightly fix. This fixing operation is performed from the back side of the multi-screen device 101.

Next, in the state in which the multi-screen device 101 has the shape of the multi-screen device 101 as described above, the temporary fixing by the screws 11 and the nuts 12 is adjusted, and the positions of the front surfaces of the plurality of stacked screens 1 are all aligned. . And FIG.
As shown in FIG.
And nut 6 to fasten and fix in four directions: up, down, left and right. This fixing work is performed by the multi-screen device 10.
1 and from behind. At this time, since the screw 11 and the nut 12 are still in the temporary fixing state, the fastening by the screw 5 and the nut 6 has priority, and the screen frames 2 are tightly fixed vertically and horizontally. Finally, the screws 11 and the nuts 12 in the temporarily fixed state are fastened and the main body frame 3 and the screen frame 2 are completely fixed, whereby the assembling work as the multi-screen device 101 is completed.

Thus, the multi-screen device 101 can be formed by stacking a plurality of display units 10 vertically, horizontally, and without any joints between adjacent screens 1. Further, by fastening the screen frames 2 in four directions of up, down, left and right, not only the occurrence of joints in the left and right directions is suppressed, but also the screen frame 2 and the main body frame due to the load when a plurality of display units 10 are stacked up and down. The occurrence of joints due to the vertical deflection at 3 can also be suppressed.

As another embodiment of the present invention, a rivet member is used as a fastening means for fastening the adjacent screen frames 2. That is, the screw 5 and the nut 6 shown in FIG.
Instead, the adjacent screen frames 2 are fastened using rivets. This is suitable when the installation of the multi-screen device 101 is semi-permanent.

[0023]

As described above, according to the present invention, when a plurality of display units are stacked vertically and horizontally in a multi-screen device and installed, the main body frame and the screen frame are temporarily fixed and then the adjacent screen frames are attached. By fastening and fixing the joints, there is an effect that the joint width between the adjacent screens can be made the minimum physical size. Further, when there are a plurality of joints, each joint width dimension does not depend on the mounting accuracy of the screen frame to the main body frame, and has an effect that there is no variation and uniformity. Therefore, good display quality can always be obtained in the multi-screen device.

[Brief description of the drawings]

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

FIG. 2 is a cross-sectional view illustrating a configuration of one display unit according to the embodiment of the present invention.

FIG. 3 is an enlarged sectional view showing a portion A in FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Screen 2 Screen frame 3 Main body frame 4 Projector 5, 11, 13 Screw 6, 12, 14 Nut 7 Counterbore hole 8 Wall 9 Outer frame 10 Display unit 101 Multi-screen device

Claims (2)

(57) [Claims] 1. A frame in which a projector is installed.
And images projected from the projector
Fix the screen and take it into the front opening of the frame.
Display unit consisting of a screen frame
The display unit with the front of the screen aligned.
Multi-slots consisting of multiple units
A clean device, The frame and the screen in the display unit
Temporary fixing means for temporarily fixing the frame, and the adjacent frame
First connecting and fixing means for fixing each other,
A second connecting and fixing means for fixing the screen frames together;
A screen fixing device, comprising: 2. A frame in which a projector is installed.
And the images projected from the projector
Fix the screen and take it into the front opening of the frame.
Display unit consisting of a screen frame
The display unit with the front of the screen aligned.
Multi-slots consisting of multiple units
A clean device, The frame and the screen in the display unit
The frame is temporarily fixed by temporary fixing means, and then
The frames are fixed by the first connecting and fixing means.
Then, the adjacent screen frames are connected to each other in a second connection.
Screen fixed by fixing means
How to fix the fixing device.