JPH08314014A - Multiscreen display device - Google Patents

Abstract

PURPOSE: To provide a multiscreen display device capable of simply, easily and surely fixing respective PJ units, being efficiently installed without increasing the weight, and shortening working time on the field by moving the previously assembled device CONSTITUTION: After rails 10a and 10b for vertical coupling are arranged up and down on both side surfaces of the respective back cabinets of six PJ unit main bodies, the PJ units 3 are piled up at three stages, and the lower rail 10b of the upper PJ unit 3 and the upper rail 10a of the lower PJ unit 3 are coupled through inter-rail coupling members 11, whereby three-surface PJ units 2a and 2a are assembled. Furthermore, three PJ unit main bodies are piled up as they are, fixed and coupled by nuts 14 after making a vertical coupling bar pass through up and down, whereby the three-surface PJ unit 2b is assembled. Then, the three-surface PJ units 2a, 2a and 2b are arranged side by side and their upper surfaces and their lower surfaces are coupled by angles 16, whereby the multiscreen display device 1 is assembled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention In order to provide a large-screen display device for business use, the present invention stacks a plurality of small-sized PJ (projection) units (also called cube projection displays) vertically and horizontally. The present invention relates to a wide screen multi-screen display device.

[0002]

2. Description of the Related Art In recent years, in order to realize a large screen of a large screen display device for viewing realistic images, a plurality of screens smaller than one large screen are combined to realize one large screen as a whole. Devices have come to be used, and for example, a multi-screen display device in which a plurality of small-sized PJ units, which are rear projection type projectors, are stacked vertically and horizontally to form a wide screen is widely used. .

FIG. 14 is a perspective view showing a PJ unit of a conventional multi-screen display device. The cabinet 51 of the PJ unit 50 is formed into a substantially rectangular parallelepiped, a screen 52 is attached to the front end surface, and an electric signal that converts a video signal and projects it on the screen to generate a magnified projection image is provided inside and behind the cabinet 51. Circuit, C
Equipment such as RT and lens group is stored. On the lower surface of the cabinet 51, the PJ unit 5 is directly attached to the floor or the like.
In order to prevent the lower end or the like of the screen 52 from coming into contact with the floor or the like and being damaged when 0 is placed, a leg portion 53 is provided, and another PJ is provided on the upper surface of the cabinet 51. When the cabinets 51 of the unit 50 are stacked, the leg portions 53 of the PJ unit 50 are escaped and the recess 5 is formed.
4 are formed.

The conventional PJ unit thus formed has no problem when it is simply arranged and stacked on a flat floor or table, but for example, it can be better seen from a distance or a space. It is difficult to satisfy the recent multipurpose exhibition requirements such as assembling a plurality of PJ units to form a multi-screen display device and then using the assembled multi-screen display device in a suspended manner for the effective use of It has become to.

In such a case, in the conventional multi-screen display device, the PJ units forming the above-mentioned multi-screen display device are firmly connected by a very complicated and firm fixing means, or the above-mentioned multi-screen display device is connected. Unless the entire screen display device is fitted into a specially prepared large box or a strong frame and is lifted together with the large box or frame, the PJ unit cannot be prevented from tilting or shifting during the lifting process.

This work requires more time and labor than simply assembling the PJ unit (forming a multi-screen display device), and further requires a completely different means such as a box or a frame, so that the total weight is increased. Becomes very heavy, and the lifting equipment and the beam structure of the building also need to have sufficient strength, resulting in poor efficiency and many restrictions on the installation site.

On the other hand, when the multi-screen display device is to be moved and used, particularly in the rental industry, it is absolutely necessary to perform the installation (assembly) / disassembly work at the exhibition site in a short time. In the display device, it is necessary to assemble PJ units one by one on the site, and the special work as described above is required depending on the installation location, which makes it impossible to shorten the work time on the site. There is.

That is, as seen in the recent assembling work of houses and buildings, if several PJ units are temporarily assembled in advance in a warehouse of a rental company, installation (assembling at the final exhibition site) Although the disassembling work time can be shortened, the conventional PJ unit cannot temporarily assemble several PJ units in advance.

Therefore, it is conceivable to manufacture a multi-sided PJ unit in which several PJ units are incorporated in advance. However, in order to manufacture a multi-sided PJ unit, each PJ unit is modified according to its shape, and Since various new types of multi-sided PJ units have to be manufactured, and in order to satisfy various assembled shapes, an enormous amount of many types of multi-sided PJ units have to be manufactured, which is extremely difficult. Inefficiency is extremely low, and the rotation rate used is significantly reduced.

On the other hand, when assembling a super-large multi-screen display device having, for example, 5 (vertical 5 faces) × 5 (horizontal 5 faces) or more, it is necessary to carry out the stacking work while lifting the PJ unit at a high place. Therefore, it is necessary to pay close attention to safety when connecting at high places, and even if you try to lift with a forklift, there is a limit to the height at which the machine can be lifted, and assembly work is extremely difficult. It was a thing.

[0011]

As described above, in the conventional multi-screen display device, in order to satisfy the recent multipurpose display requirements, each PJ unit is securely fixed so as to be very complicated and solid. Fixing means, a specially made large box, and a strong frame are required, and the work of assembling each PJ unit is significantly increased, and because of the above fixing means, box, or frame, the overall weight becomes very heavy and lifting There is a problem that the beam structure of the equipment and the building needs to have sufficient strength, resulting in poor efficiency and many restrictions on the installation site.

Further, when moving the multi-screen display device, the PJ units must be assembled one by one at the destination exhibition site, and special work is required according to the installation site, so There is a problem that the working time cannot be shortened. Also, in order to reduce the work time, a multi-sided P that has several PJ units built in in advance
It is also very difficult to manufacture the J unit in terms of efficiency and rotation rate used.

Further, the work for assembling the super-large multi-screen display device is very difficult because of the work of connecting at a high place.

The present invention has been made in view of the above circumstances, and each PJ can be easily and easily performed even in a complicated exhibition.
The unit can be securely fixed, and in particular, it can be installed efficiently without increasing the weight, there are few restrictions on the installation place, and when moving, the PJ unit can be mounted at the destination site. An object of the present invention is to provide a multi-screen display device that can move previously assembled ones without assembling them one by one and can shorten the work time on site.

Another object of the present invention is to provide a multi-screen display device which can be easily assembled even when assembling a super-large multi-screen display device.

[0016]

In order to achieve the above object, a multi-screen display device according to claim 1,
In a multi-screen display device formed by stacking a plurality of projection units vertically and horizontally, for each of the projection units, the projection units are vertically connectable by a vertical connection member and a horizontal connection in the horizontal direction. And a lateral connecting portion that can be connected by a member.

The multi-screen display device according to a second aspect of the invention is a multi-screen display device in which a plurality of projection units having legs on the lower surface are stacked vertically and horizontally to form a cabinet of each of the projection units at the front end. A front cabinet that has a screen that projects the image projected from the side and has an outer diameter that is approximately the same as the outer diameter of this screen, and a rear cabinet that houses the equipment that converts the video signal and projects it on the screen to produce a magnified projection image. From the rear cabinet, the legs are provided on the lower surface of the rear cabinet,
While forming the upper surface of the rear cabinet lower than the front cabinet, for each of the projection units, the outer diameter of the rear cabinet is formed to a size that avoids the connecting portion between the projection units, and the rear cabinet side. In addition, a vertical connecting portion that is vertically connectable by a vertical connecting member and a horizontal connecting portion that is horizontally connectable by a horizontal connecting member are provided.

Further, in the multi-screen display device according to a third aspect, in the multi-screen display device according to the second aspect, the vertical connecting portions are provided on the upper surface and the lower surface of the rear cabinet at positions vertically opposed to each other. And a vertical connecting rod that can be vertically penetrated through the vertical connecting through-holes of the projection units that vertically connect the vertical connecting members. The upper and lower surfaces of the projection unit are formed by vertical fixing members for fixing the vertical connecting rods.

According to a fourth aspect of the present invention, there is provided the multi-screen display device according to the second aspect, wherein the vertical connecting portions are formed by vertical connecting fastening holes provided on both side surfaces of the rear cabinet. In addition, the vertical connecting member is formed by a connecting plate for vertical connection that connects between the side surfaces on the same side of each projection unit that is vertically connected, and is fixed by the fastening hole for each vertical connection of each projection unit. It is a thing.

Further, the multi-screen display device according to a fifth aspect is the multi-screen display device according to the second aspect, wherein the vertical connecting portions are provided with vertical connecting rails on both side surfaces of the rear cabinet in the front-rear direction. Formed horizontally, the vertical connecting member is formed by a vertical connecting rail connecting member that connects the vertical connecting rails provided on the same side surface of each projection unit that is connected vertically. Is.

A multi-screen display device according to a sixth aspect is the multi-screen display device according to the fourth or fifth aspect, in which a vertically assembled multi-plane projection unit is placed and connected on the projection unit. The procedure for assembling a new vertical multi-sided projection unit is repeated one or more times to form a vertical multi-sided projection unit, and the vertical multi-sided projection units are arranged side by side in the horizontal direction and assembled. .

Furthermore, a multi-screen display device according to a seventh aspect is the multi-screen display device according to the second, third, fourth or fifth aspect, wherein the lateral connecting portions are provided on the left and right sides of the rear cabinet, respectively. A horizontal connecting rod which is formed of horizontal connecting through holes provided at opposite positions, and which laterally connects the horizontal connecting member to each of the horizontal connecting through holes of each of the projection units, which can be laterally penetrated, The projection unit penetrated by the horizontal connecting rod is formed by a horizontal fixing member for fixing the projection unit to the horizontal connecting rod.

According to an eighth aspect of the present invention, there is provided the multi-screen display device according to the second, third, fourth or fifth aspect, wherein the lateral connecting portions are provided on an upper surface and a lower surface of the rear cabinet. The horizontal connecting members are formed by connecting holes for horizontal connection, and the horizontal connecting members are connected between the upper and lower surfaces on the same side of the left and right connecting projection units, and are fixed by the connecting holes for horizontal connecting of the respective projection units. It is formed by a connecting plate for horizontal connection.

Furthermore, a multi-screen display device according to a ninth aspect is the multi-screen display device according to the second, third, fourth or fifth aspect, wherein the lateral connecting portions are respectively provided on an upper surface and a lower surface of the rear cabinet. The horizontal connection rails are formed substantially horizontally in the front-rear direction, and the horizontal connection members are connected between the horizontal connection rails provided on the same upper and lower surfaces of each projection unit that connects left and right. It is formed by the inter-rail connecting member for horizontal connection.

According to a tenth aspect of the present invention, there is provided the multi-screen display device according to the second, third, fourth or fifth aspect, wherein the lateral connecting portion is formed in the leg portion from a side surface side. The horizontal connecting member is formed by a hole, and the lateral connecting member is laterally connected. The horizontal connecting rod that can penetrate the respective holes of the legs of the projection unit to the left and right, and the projection unit that is penetrated by the horizontal connecting rod are described above. It is formed by a lateral fixing member that is fixed to the lateral connecting rod.

Further, the multi-screen display device according to claim 11 is the multi-screen display device according to any one of claims 2 to 10.
At least one of the vertical connecting member, the vertical connecting portion, the horizontal connecting member, and the horizontal connecting portion,
A plurality of projection units are assembled to form a hanging portion.

[0027]

In the multi-screen display device according to the first aspect, when the projection units are vertically stacked and fixed, the vertical connection members are connected and fixed to the vertical connection portion provided for each projection unit. Further, when the projection units are arranged side by side and fixed, the projections are connected and fixed to the horizontal connection portion provided for each projection unit by the horizontal connection member. Therefore, it is possible to assemble a plurality of projection units into a required shape in advance and assemble and move the multi-plane projection unit, and then assemble the multi-plane projection units assembled at a display place or the like to assemble a multi-screen display device. . Also,
Vertical and horizontal connections can be made for each projection unit, ensuring a reliable connection as a whole and easy suspension. Furthermore, since the vertical and horizontal connecting parts are provided in advance for each projection unit, there is no need for special large-scale equipment when assembling, and it is possible to assemble easily and improve the assembly efficiency. The work time can be shortened.

Next, in the multi-screen display device according to the second aspect, when vertically stacking and fixing the projection units having the leg portions on the lower surface, each projection unit is connected to the vertical connecting portion provided on the rear cabinet side. Connect and fix with a vertical connecting member. At this time, in the projection unit, the cabinet is equipped with a screen for projecting the image projected from the rear side at the front end, and a front cabinet having an outer diameter dimension substantially the same as the outer diameter dimension of this screen, and converting the image signal and projecting on the screen. It is formed from a rear cabinet that houses a device for producing a magnified projection image, and since the upper surface of the rear cabinet is formed lower than the front cabinet, it is provided on the lower surface of the rear cabinet of the projection unit connected above. The existing legs do not interfere with the connection of the upper and lower projection units. On the other hand, the projection units are arranged side by side and connected,
In the case of fixing, each projection unit is connected and fixed to a horizontal connecting portion provided on the rear cabinet side by a horizontal connecting member. Further, when connecting the projection units to each other, the outer diameter of the rear cabinet is formed so as to avoid the connection portion between the projection units, and the connection portion does not hinder the connection.

Next, in the multi-screen display device according to the third aspect, in the multi-screen display device according to the second aspect, when a plurality of projection units are vertically stacked and fixed, each of the projection units connected vertically is connected. The vertical connecting rods are vertically penetrated through the vertical connecting through-holes provided on the upper and lower surfaces of the rear cabinet, which are vertically opposed to each other. The lower surface and the upper surface of the projection unit connected to the uppermost part are fixed to the vertical connecting rod by a fixing member.

Next, in the multi-screen display device according to the above-mentioned claim 4, in the multi-screen display device according to the above-mentioned claim 2, when a plurality of projection units are vertically stacked and fixed, the same projection units are connected vertically. The side surfaces on the side are connected by a connecting plate for vertical connection, and the connecting plate for vertical connection is fixed by a fastening hole for vertical connection formed on the side surface of the rear cabinet of each projection unit.

Next, in the multi-screen display device according to the fifth aspect, in the multi-screen display device according to the second aspect, when a plurality of projection units are vertically stacked and fixed, each of the projection units connected vertically is connected. Between the rails for vertical connection provided on the same side of the rear cabinet,
It is fixed by connecting with rail connecting members for vertical connection.

Next, in the multi-screen display device according to the sixth aspect, in the multi-screen display device according to the fourth or fifth aspect, first, another projection unit is placed on and connected to the projection unit. Form a multi-sided projection unit assembled in the direction. After that, the above-mentioned multi-sided projection unit is placed on another projection unit and connected to form a new multi-sided projection unit. In this way, the vertical multi-sided projection unit is formed by repeating the procedure of mounting the vertically assembled multi-sided projection unit on the projection unit and connecting them to assemble a new vertical multi-sided projection unit once or more. To do. Then, the vertical multi-plane projection units are arranged side by side in the horizontal direction and connected to each other to assemble a multi-screen display device. Therefore, the work of connecting in the vertical direction is
Since the work is repeated on the floor or the like and the work of vertically connecting at a high place is not necessary, the assembling work can be easily performed even when assembling an ultra-large multi-screen display device.

Next, in the multi-screen display device according to claim 7, in the multi-screen display device according to claim 2, 3, 4 or 5, when a plurality of projection units are arranged side by side and fixed, On both sides, through the horizontal connection through-holes provided at the left and right opposite positions, the horizontal connection rod is passed through left and right, and the side surface of each projection unit that is penetrated or the side surface of the projection unit that is connected to both ends is a fixing member. It is fixed to the horizontal connecting rod.

Next, in the multi-screen display device according to claim 8, in the multi-screen display device according to claim 2, 3, 4 or 5, when a plurality of projection units are horizontally arranged and fixed,
The upper and lower surfaces on the same side of each of the left and right projection units are connected by a horizontal connection connecting plate, and the horizontal connection connecting plate is fixed by a horizontal connection fastening hole formed in the rear cabinet of each projection unit. .

Next, in the multi-screen display device according to claim 9, in the multi-screen display device according to claim 2, 3, 4 or 5, when a plurality of projection units are arranged side by side and fixed, they are connected left and right. The horizontal connecting rail connecting members provided on the upper and lower surfaces of the rear cabinet of each projection unit are connected and fixed by the horizontal connecting rail connecting member.

Next, in the multi-screen display device according to the above-mentioned tenth aspect, any one of the second, third, fourth, and fifth aspects.
In the multi-screen display device described, when a plurality of projection units are arranged side by side and fixed, the lateral connection rods are pierced through the holes drilled from the side of the legs of each projection unit that are connected left and right. Each projection unit or the legs of the projection unit connected to both ends are fixed to the horizontal connecting rod by a fixing member.

Furthermore, in the multi-screen display device according to the eleventh aspect, in the multi-screen display device according to any one of the second to tenth aspects, a plurality of projection units are assembled into the vertical connecting member. Then, the assembling work is performed by suspending the suspending portion formed on at least one of the vertical connecting portion, the horizontal connecting member, and the horizontal connecting portion.

[0038]

Embodiments of the present invention will now be described with reference to the drawings. 1 to 9 show an embodiment of the present invention, FIG. 1 is a perspective view of a multi-screen display device, FIG. 2 is an explanatory view of a projection unit main body, and FIG. 3 is an explanation of a three-sided projection unit connected in a vertical direction. FIG. 4, FIG. 4 is a cross-sectional view illustrating the vertical connecting portion of FIG. 3, FIG. 5 is an explanatory view of a connecting rail of the projection unit, and FIG. 6 is a description of a three-sided projection unit having a suspending portion and connected in the vertical direction. FIG. 7, FIG. 7 is an explanatory view of connecting the three-sided projection unit in the horizontal direction, FIG. 8 is an explanatory view of using the example of FIG. 7 for the vertical connection, and FIG. 9 is an explanation of connecting the projection unit in the horizontal direction by legs. It is a figure.

In FIG. 1, reference numeral 1 denotes a multi-screen display device, which is formed by horizontally arranging and connecting three three-plane projection units (three-plane PJ units) 2a, 2a, 2b. Has been done.

The above three-sided PJ units 2a, 2a, 2b
Is formed in advance by connecting three projection units (PJ units) 3 in the vertical direction. This vertical connection is achieved by connecting the three side PJ units 2a, 2a on both sides.
, And the three-sided PJ unit 2b between them is different.

Cabinet 5 of projection unit body (PJ unit body) 4 of each PJ unit 3
As shown in FIG. 2, is formed by a substantially rectangular parallelepiped front cabinet 5a having a short depth dimension (front-rear dimension) and a substantially rectangular parallelepiped rear cabinet 5b having a long depth dimension.

At the front end of the front cabinet 5a,
A screen that projects an image projected from the back side is attached, and the screen is formed to have an outer diameter dimension substantially the same as the outer diameter dimension of the screen.

In the rear cabinet 5b,
A device 6 for converting a video signal and projecting it on the screen to generate a magnified projection image is housed. In order to prevent the lower end or the like of the screen from contacting the floor or the like and being damaged when the PJ unit 3 is placed directly on the floor or the like on the lower surface of the rear cabinet 5b, the leg portion 7 is provided. Is provided.

The upper surface of the rear cabinet 5b has another P
The J unit 3 is configured to be stacked, and the upper surface of the rear cabinet 5b is the front cabinet so that the screens of the PJ units 3 are coupled to each other when the PJ units 3 are placed and coupled vertically. It is formed lower than the upper surface of 5a.

The outer diameter of the rear cabinet 5b is smaller than that of the front cabinet 5a. When connecting PJ units 3 to each other, which will be described later, the members used in the connecting portions are connected. It is formed so as not to interfere.

In the vicinity of the four corners of the upper and lower surfaces of the rear cabinet 5b, embedded nuts 8 are provided at vertically opposed positions.
The embedded nuts 9 are provided at the left and right opposite positions in the vicinity of the four corners on both side surfaces of the rear cabinet 5b.

As shown in FIG. 3, the vertical connection shown in the three-sided PJ units 2a, 2a on both sides is the above-mentioned four provided on both sides of the rear cabinet 5b of the PJ unit 3.
By using two embedded nuts 9, rails 10a and 10b for vertical connection as vertical connection portions are provided above and below both side surfaces of the rear cabinet 5b substantially horizontally in the front-rear direction, and the PJ unit is stacked on top. Lower rail 10b of the PJ unit 3 and the upper rail 10a of the lower PJ unit 3
And 2 are connected to each other at the front and rear by a rail connecting member 11 for vertical connection, which is a vertical connecting member formed at both ends so as to be hooked on the rails 10a and 10b.

Further, as shown in FIG. 4, the tip end positions of the tightening bolts 11a provided on the rail-to-rail connecting member 11 are located at the portions of the upper surface of the lower rail 10b where the rail-to-rail connecting member 11 is hooked. Is formed with a counterbore hole 10c for fixing the tightening bolt 11a.
The rails 10a and 10 by the inter-rail connecting member 11
The fixing of b can be performed reliably and easily.

The rails 10a and 10b may be formed by separately forming the leg portion 12a and the rail portion 12b as shown in FIG. Further, although not particularly illustrated and described, it goes without saying that the above-described vertical connection can be applied to horizontal connection. When applied to the lateral connection, there is a gap between the side surfaces of the PJ unit, so a piece of wood or the like is interposed and connected / fixed. Furthermore, in this embodiment, two rails are provided on each side, one on the upper side and one on the lower side, but the weight of the PJ unit is light,
If the dimension (dimension for mounting the inter-rail connecting member) has a margin, the number of rails may be one. Further, the number of inter-rail connecting members is not limited to two, and three or more may be used depending on the weight of the PJ unit.

The vertical connection shown in the three-sided PJ unit 2b is for vertically connecting the holes of the four embedded nuts 8 provided on the upper and lower surfaces of the rear cabinet 5b of the PJ unit 3 as shown in FIG. A vertical connecting rod 13 which is used as a through hole and which is vertically penetrated is provided in each of the above-mentioned embedded nuts 8, and a vertical connecting rod 13 having a screw screwed at both ends is provided from the upper surface of the uppermost PJ unit 3 to the lowermost PJ unit 3. By penetrating to the lower surface of the unit 3, the uppermost PJ unit 3 upper surface and the lowermost PJ unit 3 lower surface are fixed to the vertical connecting rod 13 with nuts 14 and 15 as vertical fixing members. is there.

Each nut 14 provided on the upper surface of the PJ unit 3 at the uppermost position is formed with a hanging portion 14a which is movable by hanging the three-sided PJ unit 2b with a hook. 14a is also used when the multi-screen display device 1 is assembled and then suspended.

Although not particularly shown, in the example in which the connecting rod is penetrated through the through hole to perform the vertical connection, the through holes for horizontal connection are formed on the both side surfaces of the rear cabinet at positions opposite to each other. However, it goes without saying that the lateral connecting rod can be applied to the lateral connecting by penetrating the lateral connecting rod into the lateral connecting through hole. When applied to a horizontal connection, P
Since there is a gap between the side faces of the J unit, connect a piece of wood, etc. between the side faces to connect and fix it. Further, in this embodiment, 4
This is an example in which the vertical connecting rods 13 are used, but if many through holes are provided in the upper and lower surfaces of the rear cabinet, connection using four or more vertical connecting rods 13 can be performed. Further, in this embodiment, screws are screwed only on both ends of the vertical connecting rod 13 so that the nut 1
The upper surface of the PJ unit 3 at the uppermost position and the lower surface of the PJ unit 3 at the lowermost position are fixed by 4, 15
A screw may be screwed on the entire vertical connecting rod so that each PJ unit 3 to be vertically connected can be fixed to the vertical connecting rod. In addition, a part (for example, a bolt head part) to be hooked on the upper and lower surfaces of the rear cabinet is formed in advance at one end of the vertical connecting rod, and a screw part is screwed at the other end and fixed by a nut from one side. You may also do.

Each of the three-sided PJ units 2a, 2a, 2b
As shown in FIG. 7, the horizontal connection is performed by arranging the three-sided PJ units 2a, 2a, 2b in the horizontal direction, and
Between the upper surfaces of the uppermost PJ units 3 of the surface PJ units 2a, 2a, 2b, and the above-described three-sided PJ units 2a, 2
This is performed by connecting the front and back between the lower surfaces of the PJ units 3 at the lowest positions of a and 2b with an angle 16 as a horizontal connecting connecting plate.

That is, the three-sided PJ units 2a, 2
The angle 16 is fixed to the upper and lower surfaces of a by bolting the embedded nut 8, while the three-sided PJ is used.
On the upper and lower surfaces of the unit 2b, the angle 16 is also passed through the vertical connecting rod 13 which is penetrated by the embedded nut 8 and fixed by the nuts 14 and 15.

The angle 16 is formed in a U-shaped cross section, and is strong enough to support the weight of each of the three-sided PJ units 2a, 2a, 2b. Further, as shown in FIG. 7 (b), the angle 16 is set so that the height of the front cabinet 5 a when mounted on the rear cabinet 5 b so that other PJ units 3 can be stacked on the upper surface of the PJ unit 3. Constant length (CL) rather than size,
It is formed to be low. That is, in this embodiment, a three-sided P in which three PJ units 3 are connected in advance in the vertical direction.
The J units 2a, 2a, 2b are finally arranged side by side in the lateral direction to form the multi-screen display device 1, but a three-sided PJ unit in which three PJ units 3 are connected in advance in the lateral direction is used. Finally, the multi-screen display device 1 can be formed by vertically stacking and connecting them.

The horizontal connection using the angle as the horizontal connection connecting plate described above can be applied to the vertical connection as shown in FIG. That is, the embedded nuts 9 are used to connect the side surfaces on the same side of the PJ units 3 that are vertically connected to each other by the vertical connection connecting plate 17. Further, the connection using the connecting plate is not limited to two connecting plates per surface.

By the way, the leg portion 7 of the PJ unit 3 is provided with through holes 7a on its side surface, and screws are screwed at both ends of the through holes 7a of the PJ units 3 arranged in the lateral direction. A lateral connection is achieved by penetrating the provided lateral connecting rod 18a and fixing the side surfaces of the leg portions 7 of the PJ unit 3 located at both ends with the nuts 18b as lateral fixing members to the lateral connecting rod 18a. It is designed to be able to. Since there is a gap between the side surfaces of the PJ unit, a piece of wood or the like is interposed between the side surfaces to connect and fix the unit. In this embodiment, screws are screwed only on both ends of the horizontal connecting rod 18a, and the nuts 18b fix the side surfaces of the legs 7 of the PJ unit 3 at both ends. It is also possible to screw a screw to the PJ unit 3 for horizontal connection so that the horizontal connection rod can be fixed. further,
A part that is hooked to the side of the leg at one end of the horizontal connecting rod (for example,
The bolt head portion) may be formed in advance, a screw portion may be screwed on the other end, and the nut may be fixed from one side.

Next, the assembly of the multi-screen display device 1 according to this embodiment will be described.

For example, in order to move the multi-screen display device 1 from the warehouse or the like to the exhibition site, the three 3-sided PJ units 2a, 2a, 2b are assembled in advance in the warehouse.

That is, in the six PJ unit main bodies 4, rails 10a and 10b for vertical connection are provided above and below both side surfaces of the rear cabinet 5b substantially horizontally in the front-rear direction, and then stacked in three stages. The lower rail 10b of the PJ unit 3 and the upper rail 10a of the lower PJ unit 3 that are stacked on top of each other are connected to each other at two front and rear positions by a rail-to-rail connecting member 11 for vertical connection. ，
Assemble 2a. 3 more PJ unit bodies 4
Are stacked as they are, and penetrate the vertical connecting rod 13 from the upper surface of the uppermost PJ unit 3 to the lower surface of the lowermost PJ unit 3, and the uppermost PJ unit 3 upper surface and the lowermost PJ unit 3 are penetrated. The lower surface and nuts 14 and 15
Then, the three-sided PJ unit 2b is assembled by fixing and connecting to the vertical connecting rod 13.

The three-sided PJ unit 2a is moved by hanging a rope, a hook or the like on a rail 10a provided on the side surface and suspended.
A rope, a hook, or the like is hung on the hanging portion 14a of the nut 14 and is hung and moved to be carried to the exhibition site.

Then, at the exhibition site, the above three planes P
The J units 2a, 2a, 2b are arranged side by side, and the upper surfaces and the lower surfaces are connected by four angles 16 to assemble the multi-screen display device 1. At this time, the nuts 14 and 15 of the three-sided PJ unit 2b are
It is temporarily removed, the angle 16 is attached, and it is fixed again.

As described above, according to the present embodiment, a 3 × 3 screen multi-screen display device can be easily assembled, and a multi-plane PJ unit can be assembled in advance and assembled on site. Because you can
Assembling time can be shortened and assembling workability can be improved. Furthermore, the connection between the PJ units can be reliably performed with simple parts, and the weight can be increased and the installation can be performed efficiently.

In this embodiment, assembling of a 3 × 3 screen multi-screen display device is performed in the vertical direction in advance.
The three-sided PJ units in which three J units are connected are arranged side by side in the horizontal direction at the end to form a multi-screen display device. However, depending on workability at the site, the PJ units can be arranged in the horizontal direction in advance. It is also possible to form a multi-screen display device by finally stacking and connecting three three-sided PJ units connected vertically.

Further, although the present embodiment has been described with reference to the case of assembling a 3 × 3 surface multi-screen display device, for example, 2 × 2 surface, 4 × 4 surface,
The assembly of the multi-screen display device can be done similarly.

Further, in addition to the case where the multi-plane PJ units connected in advance in the vertical direction are arranged in the horizontal direction or the multi-plane PJ units connected in advance in the horizontal direction are connected in the vertical direction to assemble the multi-screen display device, for example, , 2x beside a three-sided PJ unit that was previously connected in the vertical direction
Other assembly is possible, such as assembling a 3 × 3 surface multi-screen display device by arranging the two-surface PJ unit and the horizontal two-surface PJ unit.

Further, in the present embodiment, the description has been made with the three-sided PJ units on both sides and the three-sided PJ units in between being changed in the vertical direction, but the connection method is the same for the three three-sided PJ units. However, it goes without saying that they may be different from each other, and the operator can arbitrarily select from among the plurality of connecting methods described above.

Next, FIGS. 10 to 13 are explanatory views of an embodiment showing the assembly of a particularly large multi-screen display device. FIG. 10 shows the uppermost PJ unit and the second stage PJ unit.
FIG. 11 is an explanatory view of the vertical connection of the J unit, and FIG.
Illustration of vertical connection of J unit, Fig. 12 shows P at the bottom
FIG. 13 is an explanatory diagram for vertically connecting the J units, and FIG. 13 is an explanatory diagram for horizontally connecting the vertical multi-sided PJ units.

First, the hanging portion 31 is provided in advance in the embedded nut 8 on the upper surface of the PJ unit 3 which is stacked on the uppermost portion in the vertical direction. Then, using the hanging portion 31, the PJ unit 3 stacked on the uppermost portion is lifted by a crane or the like, and the PJ unit 3 positioned next (second stage)
Each embedded nut 9 placed on the J unit 3 and provided on the lower side surface of the uppermost PJ unit 3;
Using the embedded nuts 9 provided on the upper side surface of the second-stage PJ unit 3, the connecting plates 32 are respectively used.
Are fixed by bolts 33 in the vertical direction to assemble a two-sided PJ unit (FIG. 10).

Next, the PJ unit on the two sides is lifted by a crane or the like and placed on the PJ unit 3 in the third stage,
Each embedded nut 9 provided on the lower side surface of the second-stage PJ unit 3 and the third-stage PJ unit 3
Using the respective embedded nuts 9 provided on the upper side of the side, the connecting plates 32 are connected and fixed in the vertical direction by fixing the connecting plates 32 with the respective bolts 33 to assemble a three-sided PJ unit (FIG. 11).

Similarly, the above three-sided PJ unit is placed on the fourth stage PJ unit 3 and connected and fixed in the vertical direction.
Assemble the 4-sided PJ unit, lift the 4-sided PJ unit with a crane or the like, place it on the lowest PJ unit 3, and connect and fix it vertically to assemble the 5-sided PJ unit 30a (Fig. 12).

Then, the five 5-sided PJ units 30a assembled as described above are horizontally arranged side by side on a table provided on the floor FL and connected to each other to form a 5 × 5-sided multi-screen display. The device 30 is completed (FIG. 13).

As described above, in the assembly according to this embodiment, the vertical connecting work can be always performed on the floor,
Workability is good because there is no need to perform it in a high place. It should be noted that the assembly of the present embodiment has been described for a 5 × 5 surface multi-screen display device, but is not limited to this, and a 3 × 3 surface, a 4 × 4 surface, or a 6 × 6 surface or more multi-screen display device may be used. It can also be applied to display devices. Also,
In this embodiment, the vertical connection is made by the connecting plate for connecting and fixing the both side surfaces. However, as described with reference to FIG. 3, rails are provided on both side surfaces of the PJ unit and the rails are connected between the rails. You may make it connect and fix with the connecting member 11.

[0074]

As described above, according to the present invention, each PJ unit can be securely fixed easily and easily even in a complicated exhibition, and the weight is not particularly heavy. It can be installed efficiently, there are few restrictions on the installation place, and when moving, it is possible to move preassembled ones without assembling PJ units one by one at the destination site, It is possible to reduce the work time on site.

According to the sixth aspect of the invention, the assembling work can be easily performed even when assembling an ultra-large multi-screen display device.

[Brief description of drawings]

1 to 9 show an embodiment of the present invention, and FIG. 1 is a perspective view of a multi-screen display device.

FIG. 2 is an explanatory diagram of a projection unit main body.

FIG. 3 is an explanatory view of a three-sided projection unit that is vertically connected.

FIG. 4 is a cross-sectional view illustrating a vertical connecting portion of FIG.

FIG. 5 is an explanatory view of a connecting rail of the projection unit.

FIG. 6 is an explanatory diagram of a three-sided projection unit that is vertically connected and has a hanging portion.

FIG. 7 is an explanatory diagram for laterally connecting the three-sided projection unit.

FIG. 8 is an explanatory diagram for using the example of FIG. 7 for vertical connection.

FIG. 9 is an explanatory view of laterally connecting the projection unit with legs.

10 to 13 show another embodiment of assembling a 5 × 5 surface multi-screen display device, and FIG. 10 shows a vertical connection of the uppermost PJ unit and the second PJ unit. Illustration

FIG. 11 is an explanatory diagram of vertical connection of the PJ unit in the third stage.

FIG. 12 is an explanatory view of the vertical connection of the lowermost PJ unit.

FIG. 13 is an explanatory view of connecting vertical multi-sided PJ units in a horizontal direction.

FIG. 14 is a perspective view showing a PJ unit of a conventional multi-screen display device.

[Explanation of symbols]

 1 Multi-Screen Display Device 3 Projection Unit 8 Embedded Nut 10a Rail (Vertical Connecting Portion) 10b Rail (Vertical Connecting Portion) 11 Rail Connecting Member (Vertical Connecting Member) 13 Vertical Connecting Rod (Vertical Connecting Member) 14 Nut (Vertical connection member) 15 Nut (Vertical connection member) 16 Angle (Horizontal connection member)

Claims (11)

[Claims] 1. A multi-screen display device formed by stacking a plurality of projection units vertically and horizontally, wherein for each projection unit, a vertical connecting portion and a horizontal connecting portion that can connect the projection units in the vertical direction with a vertical connecting member. A multi-screen display device, comprising: a horizontal connecting portion that can be connected in a horizontal direction by a horizontal connecting member. 2. A multi-screen display device formed by vertically stacking a plurality of projection units each having a leg portion on a lower surface thereof, wherein a cabinet of each of the projection units is attached to a front end thereof with a screen for projecting an image projected from the rear side. It is composed of a front cabinet that has an outer diameter that is approximately the same as the outer diameter of this screen, and a rear cabinet that houses a device that converts the video signal and projects it on the screen to produce a magnified projection image. A portion is provided, and the upper surface of the rear cabinet is formed lower than that of the front cabinet, while the outer diameter of the rear cabinet is formed to be a dimension that avoids a connecting portion between the projection units for each of the projection units. , The rear cabinet On the
A multi-screen display device comprising: a vertical connecting portion that is vertically connectable by a vertical connecting member; and a horizontal connecting portion that is horizontally connectable by a horizontal connecting member. 3. The vertical connecting portion is formed by vertical connecting through holes provided at vertically opposed positions on the upper surface and the lower surface of the rear cabinet, and the vertical connecting member is connected vertically. A vertical connecting rod that is vertically pierceable through each of the vertical connecting through holes of each projection unit, and a vertical fixing member that fixes the upper and lower surfaces of the projection unit penetrated by the vertical connecting rod to the vertical connecting rod. The multi-screen display device according to claim 2, wherein 4. The side surface on the same side of each projection unit that vertically connects the vertical connecting member while forming the vertical connecting portion with vertical connecting fastening holes provided on both side surfaces of the rear cabinet. 3. The multi-screen display device according to claim 2, wherein the multi-screen display device is formed by a connecting plate for vertical connection, which connects the spaces and is fixed by the fastening holes for the vertical connection of the projection units. 5. The projection unit for connecting the vertical connecting member vertically while the vertical connecting rail is formed on both side surfaces of the rear cabinet so as to be substantially horizontal in the front-rear direction. 3. The multi-screen display device according to claim 2, wherein the multi-screen display device is formed by a vertical connecting rail-to-rail connecting member that connects the vertical connecting rails provided on the same side surface. 6. A vertical multi-sided projection unit is repeated by repeating the procedure of placing a vertically assembled multi-sided projection unit on the projection unit and connecting them to assemble a new vertical multi-sided projection unit. 6. The multi-screen display device according to claim 4, wherein the multi-screen projection unit is formed, and the multi-plane projection units in the vertical direction are arranged side by side in the horizontal direction and connected to each other to be assembled. 7. The lateral connecting portions are formed by lateral connecting through holes provided at left and right opposing positions on both side surfaces of the rear cabinet, and the lateral connecting members are laterally connected. It is characterized in that it is formed by a horizontal connecting rod that can freely pass through each of the horizontal connecting through holes of the projection unit to the left and right, and a lateral fixing member that fixes the projection unit penetrating with the horizontal connecting rod to the horizontal connecting rod. The multi-screen display device according to claim 2, 3, 4, or 5. 8. The horizontal connecting portion is formed by horizontal connecting fastening holes provided on the upper surface and the lower surface of the rear cabinet, and the horizontal connecting members are connected to the left and right in the same upper and lower direction of each projection unit. The multi-screen display according to claim 2, 3, 4 or 5, wherein the side surfaces are connected to each other, and are formed by horizontal connecting plates which are fixed by the horizontal connecting fastening holes of the projection units. apparatus. 9. The horizontal connecting portion is formed by horizontally connecting rails provided substantially horizontally in the front-rear direction on the upper surface and the lower surface of the rear cabinet, and the horizontal connecting member is connected left and right. 6. The multi according to claim 2, 3, 4 or 5, wherein the projections are formed by horizontal connecting rail connecting members which connect the horizontal connecting rails provided on the same upper and lower surfaces of each projection unit. Screen display device. 10. The holes in the leg portion of each projection unit that laterally connects the lateral connecting member while forming the lateral connecting portion in the leg portion from the side surface side. 6. A lateral connecting rod that can penetrate right and left is formed by a lateral connecting member that fixes the projection unit penetrating by the lateral connecting rod to the lateral connecting rod. A multi-screen display device as described. 11. A suspending portion for assembling and suspending a plurality of the projection units is formed on at least one of the vertical connecting member, the vertical connecting portion, the horizontal connecting member, and the horizontal connecting portion. The multi-screen display device according to claim 2, wherein the multi-screen display device is provided.