KR102168409B1 - Removable large screen device - Google Patents

Abstract

The present invention relates to a movable large-screen device, comprising: a link bar having an'X' shape in which intermediate portions are cross-linked in a hinge manner; A connector connecting end portions of the link bars to each other so that the link bars are continuously arranged in a grid pattern along vertical and horizontal directions; A temporary frame made of an operating spring connected to the connector facing each other in the front/rear direction so that the link bars continuously arranged in a grid shape by an elastic restoring force extend vertically and horizontally; A screen that hangs on the top of the temporary frame and spreads widely to become a background of the video object; A support tool provided at the lowermost end of the temporary frame to prevent overturning of the temporary frame, and guide by limiting an extension direction; It is provided on any one of the link bars of the temporary frame and includes an adjustment means for adjusting the extension length so as to prevent instantaneous expansion of the temporary frame due to an elastic restoring force, and the link bar is extended to a structure of a temporary frame connected continuously. And it is possible to move and receive by reducing the volume, one-touch or simple installation is easy through an adjustment means that adjusts the expansion of the temporary frame, so that beginners can easily access it, and a three-dimensional effect of the image is given by giving a curve to the screen through the screen holder. It relates to a portable large screen device that can be felt.

Description

Removable large screen device}

The present invention relates to a movable large screen device, and more specifically, to a movable large screen device capable of moving and receiving by minimizing the volume and capable of one-touch or simple installation.

In general, large screens and chroma keys used in auditoriums, lecture halls, churches, event halls, etc. have a structure in which a flexible display can be rolled and stored in a main body housing and then unfolded when necessary. It is in the spotlight as a next-generation display because it has the advantage of being able to realize a small volume.

Patent Document 1 related to such a large screen is mounted on one or both sides of a personal portable information terminal, and includes a display driving unit that can be connected and fixed to a personal portable information terminal, but the display driving unit is capable of winding a fixed base and a flexible display. Disclosed is a rollable flexible display device comprising a rotating case serving as a support shaft and a coil spring providing an elastic restoring force.

Further, Patent Document 2 discloses a wrap display system in which a flexible display is configured to be wrapped around a stick and a hinged frame for supporting the flexible display is adopted.

However, the conventional large screen such as Patent Document 1 is inconvenient to use because the fixing means for maintaining the flexible display in an unfolded state is inconvenient, and it is particularly difficult to perform operations such as multi-touch.

In addition, the method of supporting the flexible display using a hinged frame as in Patent Document 2 is difficult to apply to a large screen display, and there is a vulnerability in that the length of the screen to be unfolded cannot be freely adjusted.

In addition, since it is already installed as a roll screen that is drawn out/stored on the wall or ceiling, it cannot be used in a place where it is needed, and after installation once, it is inconvenient to move to a place, and installation work takes a long time. have.

KR 10-0818170 B1 KR 10-2009-0076996 A

In order to solve the above problems, the present invention is a structure of a temporary frame to which a link bar is continuously connected, and can be moved and accommodated through expansion and volume reduction, and one-touch or simple installation is easy through an adjustment means for adjusting the expansion of the temporary frame. Therefore, the purpose is to provide a mobile large curve screen and chroma key device that can be easily accessed by beginners and can feel the three-dimensional effect of a curve screen image by giving a curve to the screen through a screen holder.

In order to achieve the above object, the present invention relates to a link bar having an'X' shape in which intermediate portions are cross-linked in a hinge manner; A connector connecting end portions of the link bars to each other so that the link bars are continuously arranged in a grid pattern along vertical and horizontal directions; A temporary frame made of an operating spring connected to the connector facing each other in the front/rear direction so that the link bars continuously arranged in a grid shape by an elastic restoring force extend vertically and horizontally; A screen that hangs on the top of the temporary frame and spreads widely to become a background of the video object; A support tool provided at the lowermost end of the temporary frame to prevent overturning of the temporary frame, and guide by limiting an extension direction; It is provided on any one of the link bars of the temporary frame provides a movable large screen device, characterized in that it comprises a control means for adjusting the extension length to prevent the instantaneous expansion of the temporary frame by the elastic restoring force.

Here, the adjusting means is provided on the hinge portion of the link bar, and a hinge bracket having a thread on the inside in the shape of a bush; A screw bar extending vertically to a length corresponding to the length of the link bar, and coupled through the hinge bracket through a fastening method; It is provided at one end of the screw bar, characterized in that it comprises a rotation driving body for adjusting the expansion speed of the link bar by lifting and lowering the hinge bracket by rotating the screw bar.

In this case, the rotational driving body is characterized in that it is made of any one of a gear unit having a handle to enable manual operation or a servo motor capable of automatic operation.

And, at the uppermost end of the temporary frame, a curved crossbar for fixing the upper end of the screen so that the screen has a curved plane; It is formed protruding from the rear end of the crossbar is further provided with a screen cradle consisting of a hook hooked to the uppermost end connector of the temporary frame.

On the other hand, the support tool and a guide bar having a length extending forward / rearward at the lowermost end of the temporary frame; A fixture to which one end of the guide bar is fixed to one of front/rear connector of the lowermost end of the temporary frame; It characterized in that it comprises a fluid that is moved forward / backward along the guide bar in response to the fixture at any one of the front / rear connector of the lowermost end of the temporary frame.

By providing the present invention configured as described above, it is possible to move and receive by minimizing the volume, and because one-touch or simple installation is possible, even a beginner can install the screen very quickly, and because it has a simple structure, installation time and cost compared to the previous one There is an effect that can be reduced.

1 is a block diagram showing an extended state of a mobile large screen device according to the present invention.
Figure 2 is a configuration diagram showing a reduced state of the mobile large screen device according to the present invention.
Figure 3 is a partial block diagram showing the adjusting means and the support in the mobile large screen device according to the present invention.
Figure 4 is a block diagram showing the installation state of the screen holder in the mobile large screen device according to the present invention.
Figure 5 is a plan view of Figure 4;
6 is a block diagram of another embodiment of a mobile large screen device according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the same technical field can easily implement the present invention.

As shown in Figs. 1 to 5, the movable large screen device of the present invention has a link bar 210 where two bars intersect, a connector 220 connecting each end thereof, and the link bar 210 easily. A temporary frame 200 is provided including an operating spring 230 for applying an elastic force to be unfolded.

In other words, the link bar 210 is formed in a'X' shape in which intermediate portions are cross-linked in a hinge manner, and a plurality of link bars 210 are prepared.

At this time, the connector 220 connects each end of the link bar 210 to each other so that the link bar 210 is continuously arranged in a grid shape along the vertical and horizontal directions.

That is, the link bar 210 is continuously installed in a horizontal direction and a vertical direction through the connection of the connector 220 to form the temporary frame 200 in a grid shape.

In addition, between the front/rear connector 220 facing each other, the operating spring 230 is connected to each other so that the link bar 210 continuously arranged in the grid shape by the elastic restoring force of the operating spring 230 It can be extended vertically and horizontally without the need for operator intervention.

In addition, a screen 100 is provided that is wide spread so as to be a background of an image by hanging at the top of the temporary frame 200, and at the bottom of the temporary frame 200 prevents overturning of the temporary frame 200, and expands A support hole 300 is provided to limit and guide the direction.

Here, the support 300 is provided with a guide bar 310 having a length extending forward/rear at the lowermost end of the temporary frame 200.

At this time, in the front/rear direction of the guide bar 310, a fixture 320 and a fluid 330 having the same function as the connector 220 are respectively provided.

One end of the guide bar 310 is fixed to one of the front/rear connectors 220 of the lowermost end of the temporary frame 200 in the fixing body 320.

And, the fluid 330 can be moved forward/backward along the guide bar 310 in response to the fixed body 320 with any one of the front/rear connector 220 of the lowermost end of the temporary frame 200 Is installed.

That is, because one end of the guide bar 310 is fixedly installed on the fixture 320 so that the fluid 330 moves forward/reverse along the guide bar 310 according to the expansion/reduction of the link bar 210. Accordingly, it is possible to prevent the temporary frame 200 assembled with a plurality of link bars 210 from being overturned forward/rear.

Next, any one of the link bars 210 of the temporary frame 200 further includes an adjustment means 400 for adjusting the extension length so as to prevent the instantaneous expansion of the temporary frame 200 by the elastic restoring force. can do.

At this time, the position of the adjustment means 400 is preferably installed to control one link bar 210 on either side of the temporary frame 200 for smooth operation.

In addition, in the case of the adjusting means 400, a hinge bracket 410 having a thread on the inside in a bush shape is provided at a hinge portion of the link bar 210 first.

In addition, a screw bar 310 vertically extending to a length corresponding to the length of the link bar 210 is installed vertically in a manner that is fastened through the hinge bracket 410.

In addition, at the top or bottom of the screw bar 310, the link bar 210 is provided at one end of the screw bar 420 to move the hinge bracket 410 up and down by rotating the screw bar 420. ) And a rotational drive body 430 for adjusting the expansion speed.

In addition, in the case of the rotation driving body 430, it may be formed of either a gear unit having a handle to enable manual manipulation or a servo motor capable of automatic manipulation.

On the other hand, at the top of the temporary frame 200 is further provided with a screen holder 500 capable of curving the curve screen 100 so that the image of the screen 100 can be viewed more beautifully.

The screen cradle 500 includes a curved crossbar 510 fixing an upper end of the screen 100 so that the screen 100 has a curved plane; It is preferably formed of a hook 520 that is formed protruding from the rear end of the crossbar 510 and is hooked to the uppermost connector 220 of the temporary frame 200.

In addition, at the center of the temporary frame 200, one end is hinged to prevent the temporary frame 200 from falling backward, and fastening through the center of the temporary frame 200 to a predetermined length A driving folding device 600 comprising an electric screw 610 and a driving motor 620 provided at the end of the electric screw 610 to prevent slipping on the floor and to activate the electric screw 610 is further included. As a result, it is possible to automatically expand/reduce the temporary frame 200.

That is, even if there is a support hole 300 on the floor in the unfolded state of the temporary frame 200, it prevents from falling backward by external force, and the driving folding device 600 operates to stop the operation after a certain rotational drive. It is desirable.

In addition, in each rim of the screen 100, a spring is integrally formed with a spring in order to prevent the screen 100 from being wobbled by other external factors such as wind. A tensioner 700 to be coupled may be further provided.

Finally, although not shown in the drawings, casters may be further installed in the support unit 300 of the present invention for ease of movement.

By providing the present invention configured as described above, it is possible to move and receive by minimizing the volume, and because one-touch or simple installation is possible, even a beginner can install the screen very quickly, and because it has a simple structure, installation cost is reduced compared to the existing one. You can expect the effect that can be done.

The terms and words used in the present specification and claims described above should not be construed as being limited to their usual or dictionary meanings, and the present inventors appropriate the concept of terms to describe their own invention in the best way. It should be interpreted as a meaning and concept consistent with the technical idea of the present invention on the basis of the principle that it can be defined.

Therefore, the configurations shown in the drawings and embodiments described in the present specification are only one of the most preferred embodiments of the present invention, and do not represent all the technical ideas of the present invention, and thus can be replaced at the time of application. It is to be understood that there may be a variety of equivalents and variations that may exist.

100: screen
200: temporary frame
210: link bar
220: connector
230: working spring
300: base
310: guide bar
320: fixture
330: fluid
400: adjustment means
410: hinge bracket
420: screw bar
430: rotating driving body
500: screen holder
510: crossbar
520: hook
600: drive folding device
610: electric screw
620: drive motor
700: tansioner

Claims (7)

A link bar 210 in the shape of an'X' in which intermediate portions are cross-linked in a hinge manner; A connector 220 connecting end portions of the link bars 210 to each other so that the link bars 210 are continuously arranged in a grid shape along vertical and horizontal directions; A temporary frame consisting of an operating spring 230 connected to the connector 220 facing each other in front and rear so that the link bars 210 continuously arranged in the grid shape by the elastic restoring force extend vertically and horizontally ( 200) and;
A screen 100 spreading wide so as to become a background of an image by hanging on the top of the temporary frame 200;
A support tool 300 provided at the lowermost end of the temporary frame 200 to prevent overturning of the temporary frame 200 and limit the expansion direction to guide;
It is provided in any one of the link bars 210 of the temporary frame 200 and comprises an adjustment means 400 for adjusting the extension length to prevent the instantaneous expansion of the temporary frame 200 by the elastic restoring force And
The adjusting means 400,
A hinge bracket 410 provided at a hinge portion of the link bar 210 and having a threaded inside in a bush shape;
A screw bar 420 that extends vertically to a length corresponding to the length of the link bar 210 and is coupled to the hinge bracket 410 through a fastening method;
A rotation drive body 430 provided at one end of the screw bar 420 to adjust the expansion speed of the link bar 210 by lifting and lowering the hinge bracket 410 by rotating the screw bar 420 Mobile large-screen device comprising a.
delete The method according to claim 1 ,
The rotation driving body 430 is
A large movable screen device, characterized in that it consists of either a gear unit having a handle to enable manual operation or a servo motor capable of automatic operation.
The method according to claim 1,
At the top of the temporary frame 200,
A curved crossbar 510 fixing an upper end of the screen 100 so that the screen 100 has a curved plane;
A mobile large screen device, characterized in that further comprising a screen holder 500 formed of a hook 520 formed protruding from the rear end of the crossbar 510 and caught on the uppermost connector 220 of the temporary frame 200.
The method according to claim 1,
The support device 300,
A guide bar 310 having a length extending forward/rear to the lowermost end of the temporary frame 200;
A fixture 320 to which one end of the guide bar 310 is fixed to one of the front/rear connector 220 of the lowermost end of the temporary frame 200;
To include a fluid 330 that moves forward/backward along the guide bar 310 in response to the fixture 320 with any one of the front/rear connector 220 of the lowermost end of the temporary frame 200 Mobile large screen device characterized by.
The method according to claim 1,
In the center of the temporary frame 200
One end is hinged to prevent the temporary frame 200 from falling backward, and an electric screw 610 fastening through the center of the temporary frame 200 to a predetermined length, and the electric screw ( Automatic expansion/reduction of the temporary frame 200 by further including a driving folding device 600 consisting of a driving motor 620 that is provided at the end of the 610 and prevents slipping on the floor and makes the electric screw 610 Mobile large-screen device, characterized in that to automatically perform.
The method according to claim 1,
On each rim of the screen 100,
In order to prevent the screen 100 from being wobbled by other external factors such as wind, a tensioner 700 is further provided that is formed in a'L' shape and a'T' shape by integrating a spring. A mobile large screen device, characterized in that.

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