JPH0617381Y2 - Multi video equipment - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a multi-image device having a detachable screen.

(B) Conventional Technology Conventionally, large-scale multi-image devices for displaying a huge image have been used for the purpose of attracting the attention of the public at exhibitions and exhibitions.

Such a multi-image device is a combination of a plurality of image devices, and this image device has a projector housed in a hollow case and a screen attached to the front part of the case. .

The multi-image device is controlled by a computer and can generate a huge image on each screen or display different images on the screen of each image device.

As shown in FIG. 6, the screen a of each image device is formed by superimposing a transmissive screen b and an acrylic condenser lens c, and the transmissive screen b and an acrylic condenser are provided on the front part of the case d. The optical lens c is directly attached.

That is, on the inner peripheral surface of the case d, a step e for mounting the screen is provided.
Is formed, the screen a is arranged on the same step e, and
A mounting frame f is provided on the inner peripheral surface of the case d via a screw or the like,
The mounting frame f holds down the peripheral edge of the screen a.

(C) Problems to be Solved by the Invention However, the above video device has the following drawbacks.

That is, since the screen a is mainly made of a synthetic resin material, it is easy for scratches and the like to occur, and the screen a
When scratched, the image could not be displayed clearly, so it was necessary to replace the screen a.

However, the screen a cannot be operated by one-touch operation because the mounting frame f is removed and then replaced, and in the large-sized image device once combined,
The replacement work was difficult.

It is an object of the present invention to provide a multi-video device that can solve the above problems.

(D) Means for Solving the Problems In the present invention, a large number of video devices are arranged in the vertical and horizontal directions,
In a multi-image device including each image device having a hollow image case for accommodating a projector and a screen detachably attached to the front part of the image case, a horizontal screen is provided behind the screen of each image device. A moving device is provided, and the screen is movable in the front-back direction with respect to the image case in conjunction with the operation of the screen horizontal moving device.
It is intended to provide a multi-image device characterized in that a screen can be detached.

(E) Operation and effect In the present invention, when removing the screen of each image device, if the screen horizontal moving device is pushed from the rear of the image device, the screen moves forward with respect to the image case, so it can be easily removed. You can

Therefore, at the time of screen replacement or maintenance, the screen can be attached / detached with one-touch operation, which is easy and hassle-free.

In particular, one-touch even in a video device installed in the vicinity of the central part of the multi-video device where the screen cannot be slid vertically or horizontally, that is, in the state where the screen is surrounded by other video devices. The screen can be easily removed by operation.

(F) Embodiment An embodiment of the present invention will be described in detail with reference to the drawings. In the perspective view of FIG. 1, reference numeral 1 denotes a multi-image device according to the present invention, and the multi-image device 1 is a small image device 2 It is configured by stacking.

Here, the configuration of the video device 2 will be described in detail.

That is, as shown in FIG. 2, the video device 2 has a projector 4 built in a hollow video case 3 and a screen 5 attached to the front part of the case 3.

In addition, the image case 3 has a contracted shape in the middle part, and the front and rear parts thereof are stacked.

Then, the image device 2 can project an image from the projector 4 onto the screen 5 and display it on the screen 5.

Furthermore, a screen 5 is provided on the front of the video case 3.
In addition, the screen 5 is detachably attached, and the screen 5 can be easily replaced and the inside of the video device 2 can be inspected.

That is, in this embodiment, as shown in FIG. 3, the screen 5 is attached to the screen frame 6, and the frame 6 is fitted to the front portion of the video case 3.

In FIG. 3, the screen frame 6 is provided with a mounting portion 6a for mounting the screen 5 on the front portion thereof, and a fitting portion 6b with the video case 3 on the rear portion thereof.

Then, on the inner peripheral surface of the fitting portion 6b, there is provided an engaging step portion 7 for engaging a leaf spring 8 of the image case 3 described later,
The image case 3 is securely fixed.

On the other hand, as shown in FIG. 3, a plurality of leaf springs 8 are provided on the front inner peripheral surface 3a of the image case 3, and the screen frame 6
When is fitted into the image case 3, the plate spring 8 is engaged with the engaging stepped portion 7 provided in the fitting portion 6b of the screen frame 6 to fix the screen frame 6.

In this embodiment, as shown in FIG. 4, an L-shaped frame body 9 is provided on the front inner peripheral surface 3a of the image case 3, and the base end portion of the leaf spring 8 is connected to the frame body 9.

The leaf spring 8 is shown in FIG.
And the protruding portion 8a is engaged with the engaging stepped portion 7 of the fitting portion 6b.

With the above configuration, when the screen 5 is attached to the video case 3, the screen frame 6 is fitted in the front part of the video case 3, and the leaf spring 8 provided on the front inner peripheral surface 3a of the video case 3 is attached to the screen frame 6. By engaging the engaging stepped portion 7 provided on the inner side surface and fixing the screen 5, the attachment can be easily performed by one-touch operation.

A feature of the present invention in a multi-image device 1 in which a large number of image devices 2 having the above-described configuration are connected in the vertical and horizontal directions is that a screen horizontal moving device 10 is provided behind the screen 5 of each image device 2. It is provided that the screen 5 can be horizontally moved in the front-rear direction with respect to the image case 3 by interlocking with a simple operation of the device 10 so that the screen 5 can be easily removed.

That is, the screen horizontal moving device 10 is substantially
As shown in the figure, the screen removing operation rods 11 are arranged on the left and right side surfaces 3-1 of the image case 3 in the front-rear direction. The screen removing operation rods 11 are spaced in the height direction. And includes two vertical operating rods 11a and 11b erected so as to be movable in the front-rear direction.

In this embodiment, the vertical operating rods 11a and 11b are installed between the L-shaped frame 9 of the video case 3 and the rear guide wall 12 provided at the rear of the video case 3, and the operating rods 11a are also installed. , 11b
The rear end portions of the rear portions project from the rear guide wall 12.

Then, the rear end portions of the vertical operation rods 11a and 11b and the rear guide wall 12
A spring 13 is installed between the
B is biased backwards.

Further, an operation plate 15 is attached to the rear end portions of the vertical operation rods 11a and 11b, and by operating the plate 15, the vertical operation rods 11a and 11b, that is, the screen removal operation rod 11 is moved forward. It can be moved.

On the other hand, a pressing plate 14 is connected to the front ends of the vertical operating rods 11a and 11b, as shown in FIGS.

The plate 14 can freely come into contact with the rear end of the screen frame 6, and when the screen removing operation rod 11 is moved forward, the plate 14 comes into contact with the rear end of the screen frame 6,
At the same time, the screen frame 6 can be horizontally moved forward.

Therefore, if the screen-removing operating rod 11 is moved forward, the screen 5 attached to the screen frame 6 also moves forward horizontally with respect to the image case 3.

By the way, reference numeral 3 in FIGS. 2 and 3 designates the vertical operation rod.
It is an openable / closable lid body 16 attached to the rear ends of the image cases 3 that cover the rear ends of 11a and 11b and the operation plate 15. The screen horizontal moving device 10 is operated by opening the lid 16.

By configuring the screen horizontal movement device 10 as described above, when the screen 5 is detached from the image case 3, if the operation plate 15 is pushed from the rear of the image case 3, the operation lever 11 for removing the screen is removed. A pressing plate 14 that moves forward and is connected to the front end of the operating rod 11.
Can be attached to the screen 5 to horizontally move the rear end of the screen frame 6 forward, and the screen frame 6 can be removed from the leaf spring 8 and pushed forward.

Further, the multi-video device 1 is configured to display a clear image by reducing the boundary formed on the screen 5 of each video device 2 as much as possible, and the configuration will be described in detail below.

That is, as shown in FIG. 3, the screen 5 is composed of a transmissive screen 17 for displaying an image and an acrylic condenser lens 18 for enlarging the image.

Further, in this embodiment, the transmissive screen 17 is formed wider than the acrylic condenser lens 18, the four sides of the transmissive screen 17 are bent to form the transmissive screen 17 into a box shape, and Mounting portions 17a for the screen frame 6 are formed on the four sides.

Then, the acrylic condenser lens 18 is superposed on the inner surface of the transmissive screen 17, and the inner peripheral surface of the mounting portion 17a thereof is joined to the outer peripheral surface of the mounting portion 6a of the screen frame 6 to form the screen 5
Are integrally formed.

Moreover, the screen frame 6 has a tapered inner edge portion, and an acrylic condenser lens is provided at the tip portion of the tapered surface 19.
The peripheral edge of 18 is supported, and the lens 18 is covered with a transmission screen 17.

Then, the projection surface 4 is formed by the taper surface 19 of the screen frame 6.
The rays from the light can reach every corner of the screen 5, and the boundaries between the image devices 2 can be made as small as possible.

In FIG. 1, reference numeral 20 denotes a case of the vertical operation rods 11a and 11b provided on the outer side surface of the image case 3, and covers the upper and lower external rods 11a and 11b exposed from the image case 3.

As described above, the embodiment of the present invention has the following actions and effects.

According to the present invention, in order to replace the screen 5 of each image device 2, the operation lever 10 for removing the screen removing device 9 provided in the image case 3 is pushed from the rear side, and the tip of the operation rod 10 causes the image case to move. It can be easily removed by pushing the screen attached to the front part of 3.

Therefore, according to the present invention, even if it is combined with the large multi-image device 1 or each screen 5 is scratched, the screen 5 can be removed by one-touch operation, which facilitates the work. it can.

[Brief description of drawings]

FIG. 1 is a perspective view of a multi-image device according to the present invention, FIG. 2 is a side view of the image device, FIG. 3 is an enlarged sectional view in which a middle part of the image device is omitted, and FIGS. 4 and 5 are screens. FIG. 6 is an explanatory diagram of a detaching device, and FIG. 6 is an explanatory diagram showing a mounting state of a screen in a conventional video device. In the figure, 1: multi-image device, 2: image device 3: image case, 4: projector 5: screen, 10: screen removal device 11: removal operation rod

Claims (1)

[Scope of utility model registration request] 1. A plurality of image devices (2) are vertically and horizontally arranged, and each image device (2) has a hollow image case (3) for accommodating a projector (4) and the same image case. In a multi-image device composed of a screen (5) detachably attached to the front part of (3), a screen horizontal moving device (10) is provided behind the screen (5) of each of the above image devices (2). And the screen horizontal movement device
A multi-image device characterized in that the screen (5) is movable in the front-rear direction with respect to the image case (3) in conjunction with the operation of (10), and the screen (5) is detachable.