JPH1020401A - Screen board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the need for requiring labor in prepn. for projection and to avert the generation of useless spaces on a wall surface, etc., even in the case the projection is not executed by forming a screen board having an image display surface and a bulletin surface for a poster, etc., and building a speaker into this screen board. SOLUTION: A planar base plate having rigidity is used as a center and a cushion layer is formed on the front surface of this substrate by affixing a thin cork material or felt fabric thereto. Further, a pressing plate, such as acrylic plate, is attachably and detachably fixed thereto. Then, the bulletin board which allows the fixing of the poster, photograph and others, such as pictures, between the cushion layer and the pressing plate is obtd. Further, the screen for projection is formed by mounting a reflection fabric to the rear surface of this base plate. An upper frame 11 is provided with an IR photodetector as a receiver 51 for sound signals. The supporting plate and the rear surface are provided with amplifiers for amplifying the signals inputted to the IR photodetector to the sound signals of an audible range. Suitable small-sized speakers are built forward in a right frame 15 and left frame 17 and speakers are built into the main body part of the board.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screen for projecting an image.

[0002]

2. Description of the Related Art At present, it is often practiced to project an image on a screen having a width of about one meter or several meters using a liquid crystal video projector or the like, to view the image, or to observe or examine the image. . On the screen that forms such a small projection screen, artificial cloth that is resin-processed so that the surface of the canvas is white or silver-white is frequently used, and when not in use, it is wound up on a roll or the like and stored. In many cases, the reflective cloth is pulled out for use.

[0003] A screen used for a conference or the like is called a roll screen, which allows a reflective cloth to be wound around a roll in a cover, and enables the roll and the cover to be attached to an upper portion of a white board or the like. There is something. This roll screen usually uses a whiteboard, attaches the cover as necessary to the top of the whiteboard, etc., and draws out the reflective cloth wrapped around the roll inside the cover to form the projection place is there.

In the case of a screen fixed to a wall,
Some paintings and posters are removable on the projection screen, and when not in use, the screen is left as it is, and sometimes paintings are mounted on the screen.

[0005]

Today, instead of televisions and the like, the use of images projected on a large screen is increasing. However, when the screen is not used, the screen is not fixed. The screen makes the wall surface and the like difficult to see, and there is a disadvantage that the screen is particularly noticeable at a position that is easy to see.

Although a movable screen such as a roll screen has been devised to simplify the assembly for starting projection, it is necessary to set the screen at a position that is easy to see in accordance with the projection location. There was a drawback that required time and effort. Furthermore, today, projectors with a built-in VCR as projectors, laser discs and video CDs, and projectors capable of projecting based on CRT image data of personal computers or image data read by image canners, etc. The use of audio is also increasing, and audio that matches the video is often used, and it is necessary to install the speaker system in conjunction with the installation of the screen, so that it takes time and effort to prepare for projection. It has become.

The present invention eliminates the above drawbacks and provides a screen that does not require any trouble in preparation for projection and that does not create useless space on a wall or the like even when projection is not performed. It is.

[0008]

According to the present invention, there is provided a screen board having an image display surface such as a projection screen, a display surface on which a poster or the like is mounted, and a speaker incorporated therein. As described above, since the image display surface and the posting surface are provided, an image can be projected on the image display surface. When the image is not projected, a poster or the like can be posted on the posting surface. Furthermore, by incorporating a speaker, sound and music can be played when displaying an image on the image display surface, and music and explanation can be played when an object is posted on the posting surface, so that sight and hearing can be satisfied.

According to a second aspect of the present invention, there is provided a flat bulletin board having rigidity as a required size, and the bulletin board is attached to a board body having an area larger than that of the bulletin board. A speaker is built in the board body, and the back surface of the bulletin board is used as a projection screen. As described above, since the rear surface of the bulletin board is used as the projection screen, the image can be projected by turning the bulletin board over.

According to a third aspect of the present invention, one end of the bulletin board is movably and rotatably attached to the board body. In this way, by mounting one end of the bulletin board portion movably and rotatably with respect to the board body portion, the bulletin board portion can be turned over, and at the same time, the board body portion and the projection screen are always provided on the back surface. And can be integrated.

Further, according to a fourth aspect of the present invention, both ends of the center of the bulletin board are rotatably supported by support rods, and the end of the support rod is rotatably mounted near the end of the board body. It is. As described above, since the bulletin board is rotatably attached to the board main body by the support rod, the board main body and the bulletin board having the projection screen provided on the back surface are always integrated while enabling the flip of the bulletin board. Can be.

According to a fifth aspect of the present invention, there is provided a board main body having a rigid, flat, bulletin board portion, a frame formed around the bulletin board portion, and the bulletin board portion being integrally fixed to a wall surface. And a built-in speaker in the board body, and a built-in rotating roll for raising the projection screen above the bulletin board. In this manner, if the rotating roll is provided above the bulletin board, the projection screen can be pulled out from the upper portion of the bulletin board by the rotating roll to cover the front surface of the bulletin board and perform projection.

Still further, according to a sixth aspect of the present invention, a receiver and an amplifier are provided on a board body together with a speaker. In this manner, if the receiver and the amplifier are provided in the board main body, it is possible to make the screen board emit sound or the like in accordance with the projected picture while projecting onto the screen board without performing connection at the time of projection.

According to a seventh aspect of the present invention, a locking member is provided on the back surface of the board body so that the board can be attached to and detached from a wall surface. In this manner, if the latch is provided on the back surface of the board main body, it can be easily attached to the wall surface, and can be removed as needed, so that it can be easily installed in an easily viewable place.

Further, according to the invention, a rigid flat plate is rotatably fixed to a support, and a receiver, an amplifier and a speaker are incorporated in the support, and
A projection screen is attached to one surface of a flat plate, and the other surface is a bulletin board. As described above, since the plate body on which the projection screen is adhered and fixed is attached to the support, the projection can be performed with the projection screen as the front surface, and when the projection is not performed with the other surface as the front surface. Can be used.

According to a ninth aspect of the present invention, there is provided a video display device having a plate-like thin type, rotatably fixed to a main body, a receiver, an amplifier, and a speaker incorporated in the main body. The back surface is a bulletin board. As described above, if the back surface of the image display device is a bulletin board unit, a poster or the like attached to the bulletin board unit can be shown when the image is not projected.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In a first embodiment of the screen board according to the present invention, as shown in FIG. 1, a frame is provided around the periphery and a bulletin board portion is provided at the center. As shown in FIG. 2, the bulletin board portion is formed by centering a rigid plate-shaped substrate 31 and forming a cushion layer 33 by attaching a thin cork material or a felt material to the surface of the substrate 31. It is. Further, a holding plate 35 such as an acrylic plate can be detachably fixed, and the holding plate 35 is provided with a recess into which the cushion layer 33 is inserted in the center so that the holding plate 35 can be fixed to the substrate 31. is there.

Accordingly, a bulletin board portion can be provided between the cushion layer 33 and the holding plate 35, on which posters, photographs, and other paintings can be fixed. Further, a reflective screen 37 is attached to the back surface of the substrate 31 to form a projection screen. In addition, the frame body includes the upper frame 11, the lower frame 13, and the right frame.
15, the left frame 17 surrounds the substrate 31;
A column-shaped support pin 41 is projected right and left from the upper right and left ends of the substrate 31, and the support pin 41 is inserted into a groove formed inside the right frame 15 and the left frame 17 of the screen board 10. The groove has a length extending from the upper end to the lower end of the right frame 15 and the left frame 17, and the support pin 41 extends along the groove along the right frame.
15 and the left frame 17 are slidable so as to move from the upper end to the lower end, and the substrate 31 is provided with support pins 41 inserted into the grooves.
The substrate 31 is attached to the frame so as to be rotatable up and down around the center of rotation.

Also, an upper frame 11, a lower frame 13,
And each rear end of the right frame 15 and the left frame 17 is, as shown in FIG.
The board body 20 has a plate shape and is rigidly connected to a support plate 21 of the board body 20 having a rigidity.A back cover 23 is provided on the board body 20, and a hook hole, a hook, etc. Is provided so that it can be attached to a wall surface or the like.

Further, the upper frame 11 of the screen board 10
Is provided with an infrared receiver as an audio signal receiver 51, and an amplifier is provided on the back surface of the support plate 21 to amplify a signal input to the infrared receiver and convert the signal into an audible range audio signal. An appropriate small speaker is incorporated in the right frame 15 or the left frame 17 so as to face forward, so that the speaker is built in the board main body 20. In addition, the speaker is not only used in the case where the speaker is incorporated in the frame, but also in the case where
May be installed inside 23.

The receiver 51 attached to the board body 20
However, the present invention is not limited to the infrared receiver, and an appropriate wireless receiver 51 may be incorporated so as to be housed in the board body 20. Therefore, the back cover 23 is attached and fixed to an easily visible position on the wall surface by a hook such as a hook hole.
If the board body 20 is attached to the wall surface by integrating the support plate 23 and the support plate 21, and a poster or the like is sandwiched between the cushion layer 33 of the board 31, which is a bulletin board portion, and the holding plate 35, the wall surface that is easy to see It can be easily mounted on a wall, and can be used as a poster in a forehead to decorate a wall surface.

Also, since the screen board 10 has a built-in wireless amplifier including an infrared receiver and an amplifier, if an audio signal or the like is transmitted to the screen board 10 using an infrared transmitter, the screen board 10 can match a poster or picture. The music that has been played can be played from the screen board 10, and the sight and hearing can be enjoyed. Also, the board 31 of this bulletin board part
Since the left and right ends of the upper end are attached to the grooves of the left frame 17 and the right frame 15 by the support pins 41, as shown in FIG. 4, the lower end is fixed and pulled out, and as shown in FIGS. 5 and 6, Lowering the upper end of the bulletin board unit provided with the support pins 41 on the lower surface, and rotating the support pins 41 around the position of rotation to raise the lower end upward and position the lower end inside the upper frame 11, thereby providing a rear projection screen. Can be used as the surface.

Therefore, when projecting an image using a video projector or the like, it is possible to easily prepare for projection simply by turning over the bulletin board unit, and to project music or sound corresponding to the image from the position of the screen. Can be shed. When turning over the bulletin board, the board 31
Not only when the support pins 41 protrude to the left and right of the
Extend the support pins 41 up and down from the left and right ends of
A groove is formed inside the inside of the lower frame 13 and the inside of the lower frame 13, and the bulletin board part and the screen are formed on the front and back so that the board 31 is rotated left and right so that the bulletin board part can be fixed at the same place as the front or back. In some cases, the board 31 on which the bulletin board portion is formed on the front surface and the screen formed on the back surface is once removed, turned upside down, and mounted again.

If the board 31 and the board main body 20 are integrated with the support pins 41, the bulletin board and the screen can be easily inverted. Further, when the board 31 is rotatably attached to the board body 20, as shown in FIG. 7, the left and right centers of the board 31 forming the bulletin board are rotatably supported by support rods 43 and 44, respectively. The upper end of the support rod 43 that supports the right side of the base 31 may be rotatably fixed to the upper part of the right frame 15, and the upper end of the support rod 44 that supports the left side of the board 31 may be rotatably fixed to the upper part of the left frame 17. .

As described above, the center of the left and right of the substrate 31 is
Since the upper and lower support rods 43 and 44 are rotatably mounted near the ends of the board main body 20, respectively, the board 31 is mounted on the board main body 20 as shown in FIG. Department
The substrate 31 can be easily turned over by pulling it out of the support plate 21 and rotating the substrate 31.

As described above, one end of each of the support rods 43 and 44 is rotatably supported near the upper part of the frame, and the center of the substrate 31 is rotatable at the other end or the middle of the both support rods 43 and 44. Since the supporting structure does not have a sliding portion when connecting the board 31 and the board main body 20, it is hard to cause a failure or the like, can be made robust, and can be easily fixed only by fixing the upper part of the board 31. The bulletin board can be fixed as the front, and the screen can be fixed as the front.

When the substrate 31 is supported between the support rods 43 and 44, the lower ends of the left and right support rods 43 and 44 are preferably connected by a connecting rod 45. As described above, if one surface of the substrate 31 is a bulletin board portion and a projection screen is formed on the other surface, it is possible to decorate a picture or a poster with the bulletin board portion as a front surface in a normal case. To prevent dirt and scratches on the surface
By flipping over 31, it is possible to perform projection immediately, and there is an advantage that it is not necessary to secure a place for placing a picture or a poster in another place during projection of an image.

Note that the bulletin board portion is not limited to the case where the pressing plate 35 which is a transparent plate-like body such as an acrylic plate which covers the front surface of the substrate 31 such as the cushion layer 33 is used, and the cushion layer 33 may be provided on the surface. is there. Also, a reflective cloth 37 is provided on the back of the substrate 31.
Not only when a projection screen is formed by sticking a bulletin board, but also as shown in FIG.
In some cases, a rotating roll 19 is provided on the upper part of the 31, and the reflecting cloth 37 serving as a projection screen is wound on the rotating roll 19.

Also in this case, a frame is provided around the substrate 31 to maintain the appearance as a forehead, and has an advantage that the wall surface is not obstructed when music or the like is played from the speaker 53 and projection is not performed. It is. Further, when fixing the substrate 31 to the support plate 21, as shown in FIG.
The rotating roll 19 is provided on the upper part of the base 31, and one end of the projection screen is folded back by the rotating roll 19 and drawn into the back of the substrate 31, and the reflective cloth 37 is attached to the substrate using an elastic body 49 such as rubber or a spring.
It may be urged to pull into the back of 31.

In this case, the elastic body 49 is stretched to draw out the reflective cloth 37, cover the front surface of the board 31 serving as the bulletin board, and remove the hooks and the like so that the reflective cloth 37 is removed by the elastic body 49. It is drawn into the back.
Also, by providing a weight at the end of the reflection cloth 37 drawn into the back surface of the substrate 31, the elastic body 49 is omitted, and the weight of the weight removes the hook or the like, so that the reflection cloth 37 becomes In some cases, you may be drawn into the back of 31.

In this embodiment, the reflection cloth 37 can be accommodated on the back surface of the substrate 31. When the screen board 10 is viewed from the front by reducing the diameter of the rotating roll 19, the portion covering the rotating roll 19 can be accommodated. It can be easily made inconspicuous. In each of the above embodiments, the screen board 10 is a wall-mounted screen board. However, as shown in FIG. 11, a flat plate body 32 may be rotatably supported on the support 27.

In this embodiment, a bulletin board portion is formed on one surface of the plate 32.
It is not limited to the case where the holding plate 35 made of an acrylic plate is provided, but it is possible to display posters and notices with pins or the like with the cushion layer 33 as a surface, or to apply resin coating to the bulletin board part and write pictures and characters. Alternatively, a whiteboard that can easily erase a written picture or the like may be used.

Then, a reflective cloth 37 is adhered to the back surface of the plate 32 to form a projection screen, appropriate speakers 53 are incorporated in the left and right columns 27, and a receiver and an amplifier are mounted on the base of the column 27 and the like. It is built in. Therefore, in this screen board 10, if the reception frequency of the receiver 51 is made to match the frequency of the wireless microphone or the like, a notice is pasted or written on the bulletin board section, the explanation is made with the wireless microphone, etc. The explanation can be made with a wireless microphone or the like while inverting and projecting a required image.

As still another embodiment, FIG.
As shown in FIG. 13, the support plate 43, 44 is attached to the rotating
On one surface of the rotating plate 39, a cushion layer 33 and a holding plate 35 are provided to form a bulletin board portion, and on the other surface, a flat image display device such as a plasma display or a liquid crystal display is formed. Incorporate.

Therefore, also in this embodiment, when the image display device is not used, a poster or a photograph is displayed with the bulletin board portion as a table, and when an image is displayed on the image display device, only the rotating plate is rotated. The image can be easily viewed.

[0036]

According to the first aspect of the present invention, there is provided a screen board having an image display surface such as a projection screen and a display surface on which a poster or the like is mounted, and incorporating a speaker. Therefore, when the image is not projected, the poster and the painting can be shown with the display surface as the table and the music can be played, and the image can be immediately projected and the music can be prepared by setting the image display surface as the table. .

According to a second aspect of the present invention, there is provided a board board having a predetermined size and rigidity, and the board is attached to a board body having a larger area than the board. Speakers are arranged on the periphery of the main body and / or on the back of the bulletin board, and the back of the bulletin board is used as a projection screen. In this way, since the back surface of the bulletin board is used as a projection screen, the image can be projected by turning the bulletin board over, and when not in use, a picture or the like that improves the appearance is displayed. There is no trouble in handling such as finding a place to place paintings. Further, when not in use, the screen is set to the back side, so that it is possible to prevent the screen from being scratched or stained.

According to a third aspect of the present invention, one end of the bulletin board is movably and rotatably attached to the board body. In this way, by attaching one end of the bulletin board part movably and rotatably to the board main body part, the board main body part and the bulletin board part provided with the projection screen on the back surface are always provided while the bulletin board part can be turned over. And the screen board can be easily attached and handled.

Further, according to the present invention, both ends of the center of the bulletin board are rotatably supported by the support rods, and the ends of the support rods are rotatably attached to the board body. As described above, since the bulletin board portion is rotatably attached to the board main body by the support rod, the board main body portion and the bulletin board portion provided with the projection screen on the back surface can be integrated with the board body at all times while allowing the bulletin board portion to be turned over. The screen board can be easily attached and handled.

According to a fifth aspect of the present invention, a frame body is formed around a rigid plate-shaped bulletin board portion, and a board body portion is provided which enables the bulletin board portion and the frame body to be integrally fixed to a wall surface. In addition, a speaker is built in the board body, and a rotating roll for raising the projection screen is provided above the bulletin board. In this way, if the rotating roll is provided on the top of the bulletin board, the projection screen can be pulled out from the top of the bulletin board to cover the front of the bulletin board, and projection can be started easily.

Still further, according to a sixth aspect of the present invention, a receiver and an amplifier are provided on a board body together with a speaker. In this way, if a receiver or the like is provided on the board body, when projection is not performed or when projection is performed, sound and music etc. that match the picture are easily generated from the screen board where the picture and video are displayed Can be done.

According to a seventh aspect of the present invention, a locking member is provided on the back surface of the board body. As described above, since the board body of the screen board to which the bulletin board unit and the like are attached has the locking member, it is easy to attach the screen board to a required wall surface or the like, and the screen can be easily installed. Thereafter, when the screen is not used, a poster can be displayed, for example, by displaying a poster, and the user can enjoy the visual sensation by using the forehead, and can also enjoy the sight by listening to music from a speaker.

Further, according to an eighth aspect of the present invention, a rigid flat plate is rotatably fixed to a support, a receiver, an amplifier, and a speaker are incorporated in the support, and a flat plate is provided. The projection screen is attached and fixed to one side of the projection screen. As described above, since the plate body on which the projection screen is adhered and fixed is attached to the support, the projection can be performed with the projection screen as the front surface, and various types can be used when the other surface is not to be projected. An explanatory diagram or the like can be displayed, and when a wireless microphone or the like is used for projection or explanation, audio and music can be easily heard and played.

According to a ninth aspect of the present invention, a thin plate-shaped video display is rotatably fixed to a main body, a wireless amplifier and a speaker are incorporated in the main body, and a rear surface of the video display is provided. It will be a bulletin board. in this way,
If the back surface of the image display is a notice board, a poster or the like attached to the notice board can be shown when the image is not projected.

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment of a screen board according to the present invention.

FIG. 2 is a diagram showing an example of a bulletin board unit used for a screen board according to the present invention.

FIG. 3 is a side view showing the first embodiment of the screen board according to the present invention.

FIG. 4 is a side view showing an operation example of the first embodiment of the screen board according to the present invention.

FIG. 5 is a side view showing an operation example of the first embodiment of the screen board according to the present invention.

FIG. 6 is a side view showing an operation example of the first embodiment of the screen board according to the present invention.

FIG. 7 is a front view showing a second embodiment of the screen board according to the present invention.

FIG. 8 is a side view showing a second embodiment of the screen board according to the present invention.

FIG. 9 is a side view showing a third embodiment of the screen board according to the present invention.

FIG. 10 is a side view showing a fourth embodiment of the screen board according to the present invention.

FIG. 11 is a front view showing a fifth embodiment of the screen board according to the present invention.

FIG. 12 is a front view showing a sixth embodiment of the screen board according to the present invention.

FIG. 13 is a side view showing a screen board according to a sixth embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Screen board 11 Upper frame 13 Lower frame 15 Right frame 17 Left frame 19 Roll 20 Board main body 21 Support plate 23 Back cover 27 Support part 31 Substrate 31 33 Cushion layer 35 Pressing plate 37 Reflective cloth 41 Support pins 43, 44 Support rod 45 Connecting rod 49 Elastic body 51 Receiver 53 Speaker

Claims (9)

[Claims] 1. A screen board having an image display surface such as a projection screen, a posting surface on which a poster or the like is mounted, and incorporating a speaker. 2. A bulletin board section having a required size and rigidity and a board body having a larger area than the bulletin board section. The bulletin board section is attached to the board body section. 2. A projection screen, and a speaker is built in the board body.
Screen board as described in. 3. The screen board according to claim 2, wherein one end of the bulletin board is slidably and rotatably attached to the board body. 4. The board according to claim 2, wherein both ends of the center of the bulletin board are rotatably supported by a support rod, and an end of the support rod is rotatably mounted near an end of the board body.
Screen board as described in. 5. It has a flat plate-shaped bulletin board part having rigidity,
A rotating roll that has a board body that has a frame around the bulletin board unit and that can integrally fix the bulletin board unit to the wall, has a built-in speaker in the board body unit, and pulls up the projection screen above the bulletin board unit The screen board according to claim 1, wherein 6. The screen board according to claim 2, further comprising a receiver and an amplifier together with the speaker in the board body. 7. The board body has a locking tool on the back surface,
The screen board according to any one of claims 2 to 6, wherein the screen board is detachable from a wall surface. 8. A flat plate having rigidity is rotatably fixed to a column, a receiver, an amplifier, and a speaker are built in the column, and projection is performed on one surface of the plate. 2. The screen board according to claim 1, wherein the screen is pasted, and the other surface is a bulletin board. 9. A rotating plate fixed to a main body portion rotatably via a support rod, a speaker is built in the main body portion, and a plate-shaped thin image display device is provided on one surface of the rotating plate. The screen board according to claim 1, further comprising a bulletin board on the back surface of the rotating plate.