JP2988792B2 - Combination type projection display device and its assembling 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 projection unit (a unit having a projection unit composed of a projection type cathode-ray tube, and optical means composed of a reflector or a lens for guiding the projection light from the projection unit to a screen). ), A screen unit (a unit that overlaps two screens and projects the projection light from the projection unit), and a storage rack that locks the projection unit and the screen unit in place. More particularly, the present invention relates to a combination projection type display device which locks a screen, a core unit can be easily installed and assembled, and a method of assembling the same.

[0002]

2. Description of the Related Art A conventional combination type projection display device has approximately one device.
Pile multiple core units, which are about 10 kg, vertically and horizontally, fix them together with the screen surface, and install.
Assembled, making up a large screen. At this time, in the screen unit constituting the core unit, the four sides of the two superposed screens are inserted and locked in the grooves of the screen frame.

However, the screen frames of the screen units adjacent to each other vertically, horizontally, and vertically divide the large screen of the combination projection display device for each core unit, and the screen frame itself becomes a non-image band. It gets in the way.

Therefore, in the conventional combination type projection display device, the depth of the groove of the screen frame of the screen unit, the width of the screen frame, the shape of the screen frame, the shape of the screen frame, the material of the screen frame, and the like are reduced. The transmittance is devised.

[0005] An example of a proposal using a screen frame of this type of screen unit is not an example of a combination unit type projection display device of the core unit type, but is disclosed in, for example, Japanese Utility Model Laid-Open No. 3-90184 as a multivision. There is a "multi-screen device".

In this proposed example, a plurality of screen units are provided side by side, and one screen is formed by inserting an end of the screen into a groove of a screen frame located between adjacent screens. In order to make the screen frame inconspicuous, the screen frame is formed of a light diffusing material, and the transmission amount is set to an appropriate value.

As a method of greatly facilitating the installation of the core unit, conventionally, a heavy object (about 110 k
In general, the weight of the core unit itself, which is g), is reduced, and at present, the material constituting the exterior such as the housing is aluminum.

An example of this type of proposal has been described in a catalog of a multi-projection system issued by Pioneer Corporation in July, 1990, for example.

In this proposed example, the weight of one core unit is set to 85 kg, which is about 11 kg of a general core unit of another company.
It can be seen that the weight is reduced for 0 kg.

[0010]

SUMMARY OF THE INVENTION The former proposal described above
Regarding the example aside, the weight of the core unit can be reduced to some extent by using an aluminum material, but in the latter proposed example, the core unit still weighs as much as 85 kg. However, this does not mean that human beings are piled up by about two people.
In addition, since the rigidity and strength are insufficient, a large amount of material is used in terms of volume, resulting in a problem that the material cost is increased.

The present invention has been made in view of the above-mentioned problems of the prior art, and has as its object the purpose of
Combination type casting that can be installed with only two people
Photographic display device and its assembling method, that is, one stacking device
The maximum weight per minute will be less than 50kg and workability will be improved
Combination type projection display device having such a structure and a method of assembling the same.
To provide.

[0012]

In order to achieve the above object, for this purpose we, the onset
In the light, a projection unit composed of a projection type cathode ray tube and the projection unit
Or mirror to guide the projected light from the
A projection unit having optical means comprising
A screen comprising the screen for projecting light from the projection unit.
Place the clean unit and the screen unit on the front
And store the projection unit and fix it in place
And multiple core units consisting of
It is assembled by stacking and joining at the bottom left and right,
In a combination projection display device forming a large screen,

As components constituting each core unit,
The projection unit, screen unit, and storage rack of
Those as components that make up other core units
Including the structure that can be connected to and removed from each other.
When assembling, assemble them by combining them in core units.
Instead of ether, a component unit of constituting the core unit
And made it possible to assemble.

A combination projection display according to the present invention.
In the method of assembling, the configuration of each core unit
A projection unit, a screen unit as an element, and
Storage rack as a component of other core units
With a structure that can be connected to and removed from each other
In advance, the configuration that constitutes the core unit when assembling
After combining the elements and assembling the whole, external light
As a light-blocking member that blocks
I decided to attach it.

At this time, the storage rack has a wall member.
A frame that is only a framework that does not
Open surface defined by member and frame member, that is, equivalent to wall surface
From the outside through the open surface to the front of the storage rack
Access to the screen unit from the back
Or the projection unit stored inside the storage rack
Where you can access it from the desired side or top and bottom,
A structure consisting only of a framework,

[0016] At least the mutual connection between the storage racks
After completion, a light-blocking member to block external light
Place the required top plate, back plate, side plate or maintenance plate on the required storage
Of the frame member and the open surface defined by the frame member.
I decided to attach it.

[0017]

According to the present invention, the core units are stacked and combined.
When installing the projection display unit,
Projection unit and screen
Unit and storage rack constitute another core unit.
Each other, including those as components
The projection unit.
Total weight of the screen, screen unit and storage rack, that is, the core
Even if the unit weighs 110 kg, it is actually composed
By element (ie, much less than 110 kg weight unit)
Can be stacked and assembled. Therefore, each structure
It is sufficient to transport and stack the weight of individual components
It can be transported and stacked with as little human power as humans .

In particular, the interconnection between storage racks as constituent elements
After the completion of the combination, a light-blocking member that blocks external light
The required top plate, back plate, side plate or maintenance plate
Install the frame on the open surface defined by the frame member and the frame member.
If they are attached, the assembly work can be made easier.

Because when assembling in core units
Then, each core unit has a projection unit as a component.
Knit, screen unit, storage rack, and the whole
Light-shielding member that covers the light to block external light
(Top plate, back plate, side plate, etc.)
It is bulky, because it can prevent the bulk of this weight.
You. (Core unit that constitutes combination projection display device
Core that constitutes the periphery of the combination projection display device
If it is not a unit, that is, in a combination projection display
If the core unit is located at the core,
Plates, back plates, side plates, etc.) are not required. But there is
Although it does not get in the way. )

[0020]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a core unit constituting a combination projection type display apparatus as one embodiment of the present invention, FIG. 2 is a sectional view showing a section taken along the line AA in FIG. 1, and FIG. 1
FIG. 4 is a cross-sectional view showing a cross-section along a left-right direction by arranging a plurality of core units on the left and right.

In FIG. 1, 1 is a core unit,
Screen unit 2, projection unit 3, and storage rack 1
0.

First, the configuration of the screen unit 2 will be described. As shown in FIGS. 1 to 3, the screen unit 2 includes a lenticular lens sheet 4, a Fresnel lens sheet 5, a vertical frame 6, a horizontal frame 7, a horizontal frame fixed frame 8,
Vertical frame fixed frame 9, vertical spring frame 11, side spring frame 12
Consists of

Here, the lenticular lens sheet 4 is
In order to project the projection light from the projection unit 3, it has a cross section having fine irregularities whose longitudinal direction is the vertical or horizontal direction,
It is made of translucent sheet material. The Fresnel lens sheet 5 has a concentric cross section having fine irregularities, and is made of a translucent sheet material. The vertical frame 6 is made of a transparent material and has a groove whose longitudinal direction is the longitudinal direction. The vertical frame 6 is locked by inserting the vertical sides of the superposed lenticular lens sheet 4 and the Fresnel lens sheet 5 into the groove. ing. The horizontal frame 7 is made of a transparent material and has a groove whose longitudinal direction is the horizontal direction. The horizontal frame 7 is locked by inserting the horizontal sides of the superposed lenticular lens sheet 4 and the Fresnel lens sheet 5 into the groove. ing.

The horizontal frame fixing frame 8 is connected via the horizontal frame 7 to
Lenticular sheet lens 4, Fresnel lens sheet 5
Is locked in the left-right direction. The vertical frame fixing frame 9 holds the lenticular lens sheet 4 and the Fresnel lens sheet 5 in the vertical direction via the vertical frame 6. The upper and lower spring frames 11 are screwed to the horizontal frame fixing frame 8 with spring frame fixing screws 14, and the horizontal frame 7 is fixed to the horizontal frame fixing frame 8.
And pressurized. The side spring frame 12 is screwed to the vertical frame fixing frame 9 with a spring frame fixing screw 13, and presses and fixes the vertical frame 6 to the vertical frame fixing frame 9. Note that these spring frames 11 and 12 are elastically deformed by thermal expansion due to a temperature change at a place where the lenticular lens sheet 4 and the Fresnel lens sheet 5 are installed.
The thickness and other dimensions are set.

The screen unit 2 and the storage rack 10
Means the screen unit fixing screw 15 and the clamp 16
Fixed by At this time, since the gap 10c exists, the vertical and horizontal positions of the screen unit 2 and the storage rack 10 can be adjusted. When a plurality of core units 1 are stacked vertically and horizontally, adjacent screen units 2 are fixed with screen clamp screws 25, and the screen unit 2 located on the rightmost wing side is not adjacent. Hole of the lid 26
Closed with.

Next, the configuration of the projection unit 3 and the storage frame 10 will be described. FIG. 4 is a side view showing FIG. 1 as viewed from the direction of the arrow (a).

The projection unit 3 comprises a projection unit composed of a projection type cathode ray tube (not shown) and optical means composed of a lens set 17 and the like.

Here, the lens set 17 is engaged with a projection surface of a projection type cathode ray tube (not shown) in the projection unit 3, and the projection light from the projection type cathode ray tube (not shown) is projected onto a screen. Project. A caster 18 is provided on the lower surface of the projection unit 3, and a handle 21 is provided on the upper surface.

On the other hand, the storage rack 10 has several screw holes 10a on the upper surface, right side, and rear surface, and has round holes on the lower surface and left side, respectively, and further has a rail 22 on which the projection unit 3 is movably mounted. I have it. A hole 22 is formed on the upper surface of the rail 22.
a, and a base 19 is attached to the side surface by bolts 19a.

When attaching the projection unit 3 to the storage rack 10, the user holds the handle 21 and holds the projection unit 3 on the rail 22.
After the caster 18 is moved in the direction of the screen unit 2 by the casters 18 and positioned by inserting the casters 18 into the holes 22 a of the rails 22, the projection unit 3 is fixed to the base 19 by the wing bolts 20.

In the core unit 1 configured as described above, the projection light projected from the projection unit 3 is:
As shown in FIG. 2, a vertical frame 6 at the periphery of the screen,
When projected onto the horizontal frame 7, these materials are transparent, so that they are transmitted as shown by the arrow (b) and projected onto the lenticular lens sheet 4 inserted into the groove. Therefore, vertical frame 6
And the horizontal frame 7 does not disturb the projected image.
The spring frames 11 and 12 are opaque, but their thickness is as thin as about 0.5 mm. Therefore, when a viewer looks at the screen, the spring frames 11 and 12 are located between the adjacent core units 1.
Only a thin line corresponding to the thickness of 2 is slightly reflected.

FIG. 5 is a perspective view showing a state in which a plurality of core units in FIG. 1 are stacked to assemble a combined projection display apparatus. FIG. 6 is a perspective view showing a state in which a plurality of core units in FIG. 1 are stacked and assembled. FIG.

In FIGS. 5 and 6, reference numeral 51 denotes a mechanical screw, which is used for connecting the respective core units 1 and connecting parts described later. A top plate 52 is provided with a mechanical screw 51 for shielding the top surface of the set of the plurality of core units 1 after assembly.
Fixed at. Reference numeral 53 denotes a side plate, which is fixed with a mechanical screw 51 so as to shield the side surfaces of the set of the plurality of core units 1 after assembly. Reference numeral 54 denotes a maintenance plate, which includes a handle 56 and is detachably attached to the side surface of the set of the plurality of core units 1 after assembly with the machine screw 51.

Accordingly, the side surface of the core unit 1 is normally shielded from light, and is removed during maintenance so that the inside of the core unit 1 can be maintained. Reference numeral 55 denotes a back plate, which is fixed with the mechanical screw 51 so as to shield the back surface of the set of the plurality of core units 1 after assembly. In FIGS. 5 and 6, each of the plates 52, 53, 54, and 55 is represented by a single plate, but may be divided into a plurality of plates in consideration of a manufacturing process, transportation, assembly, and the like. .

Next, a procedure for assembling a combination projection display apparatus by stacking a plurality of core units shown in FIG. 1 will be described.

First, the screen unit 2 is installed at the installation location.
And the storage racks 10 are stacked vertically and horizontally, and the front surface of the screen unit 2 is adjusted to a predetermined position. At this time, the storage rack 10 and the screen unit 2 may be stacked one by one, or a plurality of storage racks 10 may be stacked vertically and horizontally first, and then the screen unit 2 may be stacked.
May be piled up.

After the front surface of the screen unit 2 is adjusted to a predetermined position, the screen units 2 adjacent vertically and horizontally are connected to each other by the screen clamp screws 25 as described above.
And fix the gap. As a means for eliminating this gap, such a mechanical screw or a fastener utilizing the elasticity of the material may be used. The storage racks 10 adjacent to each other vertically and horizontally are screw holes 1 provided in the storage rack 10.
The screen unit fixing screw 15 and the clamp 16 are coupled to each other by a mechanical screw or a spring means similar to the clamp 16 through the round hole 0a.

Next, after the projection unit 3 is installed in each storage rack 10, as shown in FIG.
The top plate 52, the side plate 53, the maintenance plate 54, and the back plate 55 are fixed to each core unit 1. Thus, the combination projection display device is assembled as shown in FIG.

As described above, instead of stacking the core units 1 integrally, the screen unit 2 (with a weight of approximately 5
kg), storage rack 10 (weight approximately 40 kg), projection unit 3
(Approximately 45 kg in weight) and members such as various plates 52, 53, 54, 55 (total weight of approximately 20 kg) are individually stacked, so that the maximum weight to be piled up at a time is approximately 45 kg of the projection unit 3. It can be easily piled up by about two people, and assembly work such as assembly and installation can be performed.

Next, FIG. 7 is a sectional view showing a vertical section of a core unit constituting a combination projection type display apparatus as another embodiment of the present invention. Corresponds to the cross section along the AA direction.

In FIG. 7, 31 is a resin frame, 31a is a painted portion of the resin frame 31, 32 is a frame fixing screw, 33 is a spring frame,
34 is a spring fixing screw.

In the present embodiment, the resin frame 31 is made of a transparent material, and as shown in FIG. 7, the outside of the resin frame 31 is painted with a color that blocks light such as black with a painted portion 31a. The resin frame 31 is fixed to a spring frame 33 with frame fixing screws 32, and the spring frame 33 is fixed to the storage frame 10 with spring frame fixing screws 34.

With such a configuration, even if the lenticular lens sheet 4 and the Fresnel lens sheet 5 expand due to temperature and humidity, the spring frame 33 is elastically deformed, so that the lenticular lens sheet 4 and the Fresnel lens sheet 5 are made of resin. The frame 31 is securely locked. Further, since the resin frame 31 is made of a transparent material, it transmits the projection light projected from the projection unit and does not disturb the projected image. In addition, since the screen is separated only by the coating portion 31a, the image is easily viewed.

Next, FIG. 8 is a cross-sectional view showing a cross-section along a left-right direction in which a plurality of core units constituting a combination projection display apparatus as another embodiment of the present invention are arranged side by side.
It is the same as FIG.

In FIG. 8, 41 is a metal piece, 42 is a half piercing, and 43 is a metal piece fixing screw.

In this embodiment, as shown in FIG. 8, the lenticular lens sheet 4 and the Fresnel lens sheet 5 are fixed to a bent portion at the tip of a metal piece 41 by a half pierce 42. The metal piece 41 is attached to the storage frame 10 by the metal piece fixing screw 4.
Fixed at 3. At this time, by shifting the position of the head of the metal piece fixing screw 43 between the core units adjacent to the left and right, the width S of the partition of the screen adjacent to the left and right is reduced, and the image is easily viewed.

[0047]

As described above, according to the present invention, the combination
The core unit, which is a component unit of the projection display
When stacking and installing, the weight of the core unit
It weighs about 108 kg, but its component
Screen unit, projection unit, storage rack,
(Plate member as optical member) and assemble each unit
So that, for example, a pair of screen units,
Or by stacking and combining storage racks
As it can be assembled, the weight to lift at one time is approximately 4 at maximum.
5 (weight of the projection unit) kg
Easy stacking and installation / assembly with no human power
Workability of installation and assembly of combined projection display devices
Can be significantly improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a core unit constituting a combination projection display apparatus as one embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a cross section along the line AA in FIG. 1;

FIG. 3 is a cross-sectional view showing a cross-section along a left-right direction in which a plurality of core units of FIG.

FIG. 4 is a side view showing FIG. 1 as viewed from an arrow (a) direction.

FIG. 5 is a perspective view showing a state in which a plurality of core units of FIG. 1 are stacked to assemble a combination projection display device.

FIG. 6 is a perspective view showing the appearance of a combined projection type display device assembled by stacking a plurality of core units of FIG. 1;

FIG. 7 is a cross-sectional view illustrating a cross section along a vertical direction of a core unit constituting a combination projection display apparatus as another embodiment of the present invention.

FIG. 8 is a cross-sectional view showing a cross-section along a left-right direction in which a plurality of core units constituting a combination projection-type display device as another embodiment of the present invention are arranged side by side.

[Explanation of symbols]

Reference Signs List 1 core unit, 2 screen unit, 3 projection unit, 4 lenticular lens sheet, 5 Fresnel lens sheet, 6 vertical frame, 7 horizontal frame, 8 horizontal frame fixed frame, 9 vertical frame fixed frame , 10 ... storage rack, 11 ...
Upper and lower spring frames, 12 ... side spring frames, 13, 14 ... spring frame fixing screws, 15 ... screen unit fixing screws, 16 ... clamps, 17 ... lens sets, 18 ... casters, 19 ...
Stand, 20 ... wing bolt, 21 ... handle, 22 ... rail, 2
5 ... screen clamp screw, 26 ... lid, 51 ... machine screw, 52 ... top plate, 53 ... side plate, 54 ... maintenance plate, 55 ...
Back plate, 56 ... handle.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G03B 21/56-21/62 G03B 21/10 H04N 5/74

Claims (3)

(57) [Claims] 1. A projection unit having a projection unit composed of a projection type cathode-ray tube, an optical unit composed of a reflector or a lens for guiding the projection light from the projection unit to a screen, and the projection light from the projection unit. A plurality of core units, which are composed of a screen unit made up of the above-mentioned screen, and a storage rack for mounting the screen unit on the front surface, storing the projection unit, and fixing the projection unit in a predetermined position, vertically and horizontally. In a combination projection display device assembled by combining and constituting a large screen, a projection unit as a component constituting each core unit is provided.
Screen, screen unit, and storage rack to another core unit.
Including those as components that make up
To a structure that can be freely attached to and detached from the
Therefore, do not combine and assemble core units.
Of the core unit
Combination type projection display device characterized by being able to stand
Place. 2. A projection unit having a projection unit composed of a projection type cathode ray tube, and optical means composed of a reflector or a lens for guiding projection light from the projection unit to a screen, and projection light from the projection unit. A plurality of core units, which are composed of a screen unit made up of the above-mentioned screen, and a storage rack for mounting the screen unit on the front surface, storing the projection unit, and fixing the projection unit in a predetermined position, vertically and horizontally. assembled by binding to the assembly of the combined type projection type display device constituting a large screen
In the method, the projection unit as a constituent element of each core unit
Screen, screen unit, and storage rack to another core unit.
Including those as components that make up
To a structure that can be freely attached to and detached from the
And combine them in component units that make up the core unit to
After assembling the body, a light-blocking member that blocks light from the outside
And attach the required plate members around it.
Of assembling a combined projection display device. 3. The combination projection display device according to claim 2.
In the assembling method, the storage rack has a wall member.
A frame only having no frame, and a frame member constituting the frame and an opening defined by the frame member.
Surface, that is, from the outside through the open surface corresponding to the wall surface.
The screen unit attached to the front of the shelf
Access from the back, or the throw stored inside the storage rack
Access to the photo unit from the desired side and top and bottom
However, at least after the completion of the mutual connection between the storage frames,
The required top plate and back are used as light-blocking members to block light from the
Frame, side plate or maintenance plate, required frame, frame member and frame
It is specially attached to the open surface defined by the member.
A method for assembling a combination projection display device.