JP6985739B2 - Projection screen device or reflector - Google Patents

Description

The present invention is a gas-filled projection screen device or reflector having a gas-filled portion and capable of degassing the gas in the gas-filled portion to reduce the bulk when not in use, and has a relatively large size. However, the present invention relates to a projection screen device or a reflection device that can be easily and correctly installed.

Conventionally, as a screen device that can be folded into a small size when not in use and that can stand on its own when in use and project an image projected from an image projection device, the outer peripheral portion of the screen is formed on the inner circumference of the screen and the tube body. Some are composed of a bonded screen holder (see Patent Document 1). This screen holder can stand on its own and hold the screen in an unfolded state by filling the tube body with gas and expanding it.

Similarly, as a screen, there is one provided with a screen main body and a frame-shaped support made of an air tube, and the frame-shaped support has a role of pulling the screen main body from the surroundings to smooth out wrinkles at the time of deployment (Patent Document 2). reference). In this screen, a pair of roll pillar portions constituting a frame-shaped support and a pedestal portion are airtightly connected, and when air is supplied through a pipe provided in the pedestal portion, the screen body is surrounded. It can stand on its own while being pulled from the screen.

Japanese Unexamined Patent Publication No. 8-286277 Japanese Unexamined Patent Publication No. 2006-53289

However, in the screen devices described in Patent Documents 1 and 2, a screen support such as a screen support or a frame-shaped support is integrally configured, and the screen device is formed by filling the inside with gas. Therefore, if the installation location or angle is deviated during gas filling, it is necessary to wait for the completion of gas filling before moving the entire screen device. At this time, if the size is relatively small, the movement can be performed, but if the size is relatively large, the weight of the whole is large and the movement itself after filling with gas is difficult. Further, depending on the filling condition of the gas, for example, when the substrate flows into the upper part of the screen device first, the balance may be lost and the screen may fall. In addition, these problems could occur in a reflector having a similar structure.

An object of the present invention to solve in view of the above situation is to provide a projection screen device or a reflection device that can be easily installed correctly even if the size is relatively large.

In the telescopic screen device for projection and the reflector according to the present invention, in order to solve the above-mentioned problem, the screen body or the reflector and at least a part of the screen body or the reflector are filled with gas so that the screen body or the reflector is in an upright use state. A projection screen device or a reflecting device having a base body to be held, the base portion having a grounding surface on which the base body is in contact with the ground in an upright use state, and a support portion for holding the screen body or the reflecting body. Since the gas filling portion provided in the substrate portion and the gas filling portion provided in the support portion are independent of each other, gas filling can be sequentially performed for these , and the support can be performed. The unit includes a first support portion that holds the screen body or the reflector in a stretched state, and a second support portion that holds the screen body or the reflector in a usage posture, and the first support portion and the said portion. It is characterized in that each of the second support portions has an independent gas filling portion.

According to this configuration, in the installation work, the substrate portion is first filled, and at this point, the installation position and angle are adjusted, and then the support portion is filled, so that the size is relatively large. Can be installed correctly and easily. Further, it is possible to control how the entire device swells when the projection screen device or the reflection device is started up, and it is possible to prevent problems such as tilting of the projection screen device or the reflection device.

Further, the substrate portion may have the gas filling portion on the peripheral edge of the ground contact surface in the upright use state.

According to this configuration, by filling the gas-filled portion of the substrate portion including the peripheral edge of the ground plane with gas, it becomes easy to confirm the installation position and orientation and to move for fine adjustment.

Furthermore, the first support portion may have a gas-filled portion formed in a portion around the screen body or the reflector except for the base portion side.

According to this configuration, the screen body can be appropriately held in the surroundings, and the screen body or the reflector can be efficiently and neatly stretched.

Further, the second support portion may be provided with an angle adjusting means capable of adjusting the holding angle of the screen body or the reflector.

According to this configuration, the angle of the screen body or the reflector can be changed according to the purpose of use and the intended use. In particular, when it is used as a reflector, the angle of the reflector can be changed according to the position of the sun, which makes it more suitable as a reflector.

Further, the angle adjusting means includes a plurality of gas filling portions in the base portion or the second support portion, and changes the angle of the screen body or the reflector by filling or degassing the gas filling portions. May be.

According to this configuration, the angle of the screen body or the reflector can be changed more easily.

According to the projection screen device or the reflecting device according to the present invention, in the filling / installation work, the substrate portion is first filled, and at this point, the installation position / angle is adjusted, and then the support portion is filled. Therefore, even a relatively large size can be installed correctly and easily.

It is a rear perspective view which shows the structure of the projection screen apparatus or the reflection apparatus 1 which concerns on embodiment of this invention. Similarly, it is a front perspective view which shows the structure of the projection screen apparatus or the reflection apparatus 1. Similarly, it is a side view which shows the gas filling procedure of the projection screen apparatus or the reflection apparatus 1. FIG. The state in which the support portion is filled, and (d) shows the state in which all are filled. It is explanatory drawing which shows the structure of the projection screen apparatus or the reflection apparatus 1A (the one which has the angle adjusting means) which concerns on 2nd Embodiment of this invention, and (a) also fills the gas filling part for angle adjustment with gas. The side sectional view in the state of being degassed, (b) shows the side view of the state in which the gas filling part for angle adjustment was degassed. It is a side sectional view which shows the structure of the projection screen apparatus or the reflection apparatus 1B (the one which has another angle adjusting means) which concerns on 3rd Embodiment of this invention. It is a side view which shows the structure of the projection screen device or the reflection device 1C (which has further another angle adjusting means) which concerns on 4th Embodiment of this invention. It is a rear side perspective view which shows the structure of the projection screen device or the reflection device 1D (the thing which has a float means) which concerns on 5th Embodiment of this invention. It is explanatory drawing which shows the standing use state of the reflection apparatus 1B which concerns on embodiment of this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, but the present invention is not limited to the embodiments shown in the attached drawings and includes all embodiments that satisfy the requirements described in the claims. .. In the present specification, the ground plane means a portion where the projection screen device or the reflection device is in contact with the installation target surface when the projection screen device or the reflection device is installed, or a bottom surface including this portion. .. Further, "independent" means that two or more gas filling parts exist separately, and "independent gas filling parts" means that two or more gas filling parts exist separately from each other. Regardless of whether or not they are connected, for example, those in which two or more gas-filled parts can be switched between ventilation and non-ventilation, and those in which ventilation is possible in only one direction are included. Further, the upright use state of the screen body or the reflector means that the screen body or the reflector is in the stretched state and the usage posture, and the stretched state means that at least a part of the screen body or the reflector is projected. It refers to a state in which an image or the like is unfolded and stretched to the extent that it can be reflected, and the usage posture refers to a posture in which the screen body or the reflector is used in an orientation or angle.

An embodiment of the projection screen device or the reflection device 1 according to the present invention will be described with reference to FIGS. 1 to 3. Here, the projection screen device or the reflection device 1 is in a state of functioning as a projection screen device by providing the screen body 2, but by using the screen body 2 as a reflector, the reflection device 1 can be used. It will work.

As shown in FIGS. 1 and 2, in the projection screen device or the reflection device 1 (first embodiment), the screen body 2 and at least a part of the screen body 2 are filled with gas so that the screen body 2 is in an upright use state. The base body 3 has a base body 3 to be held by, and the base body 3 constitutes a grounding surface to be grounded in an upright use state (a portion marked with dark dots in FIG. 1) and a support for holding the screen body 2. Since the gas filling part 4a of the base part 4 and the gas filling part 5a of the support part 5 are independent of each other, the gas filling part 4a of the base part 4 and the gas filling part 5a of the support part 5 can be sequentially filled with the gas part 5 at the time of installation. It is a thing. Further, the support portion 5 includes a first support portion 51 (a portion marked with a thin dot in FIG. 1) that holds the screen surface 2a of the screen body 2 in a stretched state, and a second support that holds the screen body 2 in the usage posture. It is provided with a portion 52 (a portion not marked with dots in FIG. 1).

The screen body 2 is made of a flexible sheet material, and is arranged in most of the front side of the projection screen device and 1 in an upright use state, and the shape thereof is a substantially horizontally long rectangular shape. Since the front surface of the screen body 2 is configured as the screen surface 2a, for example, an image projected from the front can be projected to the front side. Further, the screen body 2 is held in an upright use state by the base body 3. Here, as the screen body 2, various forms can be adopted as long as it can project an image projected on at least a part thereof, and naturally, the screen body 2 is not limited to a two-dimensional one but a three-dimensional one. It may be, for example, the shape may be changed by filling with a gas.

As shown in the figure, the base main body 3 holds the screen body 2 in an upright use state by filling the gas filling portions provided in each portion with gas. The base body 3 is composed of a plurality of tube bodies having a gas filling portion inside, and the screen body 2 is held in an upright use state by filling these tube bodies with gas. 3 is formed. These tube bodies are made of a flexible sheet material and are formed in a substantially columnar shape, and are provided with a gas filling port and an exhaust port. The filling port and the exhaust port may be provided separately, but the structure may be simplified by integrating them. When all the tubes constituting the base body 3 are degassed, the entire base body 3 shrinks small, and at the same time, the screen body 2 is also folded, and the projection screen device or the reflecting device 1 becomes extremely small. It is advantageous in terms of storage and storage. The base body 3 is divided into a base portion 4 and a support portion 5.

The base portion 4 constitutes the bottom surface of the base main body 3 and has a ground plane. The base portion 4 is formed in a horizontally long rectangular shape in outer shape, and is provided with two reinforcing bars on the inside, and is formed in a substantially inverted shape as a whole. Further, the base portion 4 is integrally configured, and the gas-filled portion of the base portion 4 is also configured in a state where all of them communicate with each other. Therefore, by filling the gas from one filling port, all the gas filling portions of the base portion 4 can be filled, and the base portion 4 can be formed in a used state. With this configuration, the substrate portion 4 located on the bottom surface of the horizontally long rectangular projection screen device or the reflecting device 1 has high rigidity, and the entire device is more stable. A support portion 5 that supports the screen body 2 is connected to the upper side of the base portion 4.

The support portion 5 includes a gas filling portion different from the substrate portion 4. Therefore, in the filling / installation work of the projection screen device or the reflecting device 1, the substrate portion 4 can be filled first, and the installation location and orientation can be adjusted in this state to fill the support portion 5.

Further, the support portion 5 includes a first support portion 51 that holds the screen surface 2a of the screen body 2 in a stretched state, and a second support portion 52 that holds the screen body 2 in a working posture. That is, in a state where the support portion 5 is filled with gas, the first support portion 51 is in a state where the screen surface 2a of the screen body 2 is expanded, and the screen body 2 including the expanded screen surface 2a is the second support portion. The screen body 2 can be held in an upright use state by holding it in the use posture raised by 52.

The first support portion 51 includes one independent gas filling portion, and the gas filling portion is filled with gas to hold the screen surface 2a of the screen body 2 in a stretched state. The first support portion 51 has a substantially inverted U-shaped outer frame and two reinforcing portions inside the outer frame. Further, the outer peripheral edge of the screen body 2 is attached to the inside of the outer frame. Here, since the two reinforcing bars are slightly thinner than the rods forming the outer shape, they do not interfere with the expansion of the screen body 2 and are arranged behind the expanded screen body 2. It is possible to prevent the screen body 2 itself from loosening. With such a configuration, the screen surface 2a of the screen body 2 is held as being flat and having little bending.

The second support portion 52 is composed of a total of five tubes each having an independent gas filling portion, and by filling these gas filling portions with gas, all the tube bodies become rod-shaped bodies. It is formed to hold the screen body 2 in the usage posture. In the second support portion 5, each rod-shaped body is provided with an independent gas filling portion, but these may be connected to form one gas filling portion.

As described above, the projection screen device or the reflecting device 1 includes a base portion 4, a first support portion 51, and a plurality of second support portions 52, 52, ..., Which are connected to form a gas. After filling, the projection screen device or the reflection device 1 is formed. Here, regarding the connection of each of these parts, they can be directly connected to each other as shown in the figure, or a connecting member may be provided between the parts to increase the connecting strength or regulate the connecting angle. You can also do it.

The procedure for filling and installing the projection screen device or the reflection device 1 will be described with reference to FIG.

First, as shown in FIG. 3A, the projection screen device or the reflection device 1 before filling is placed so that the ground plane of the substrate portion 4 is at the planned installation position. At this time, the support portion 3 and the screen body 2 are tilted toward the screen body 2.

Next, as shown in FIG. 3B, the substrate portion 4 is filled with gas. When this filling is completed, the base portion 4 is formed, but if the position or orientation of the base portion 4 is deviated at this point, the base portion 4 is moved together with the screen body 2 and the support portion 3. Make fine adjustments to the mounting position and orientation. Since this fine adjustment is performed in a state where only the substrate portion 4 is inflated, it is easy to perform even with a projection screen device or a reflection device having a relatively large size.

Then, as shown in FIG. 3C, the second support portion 52 is filled with gas. Since the second support portion 52 is provided so as to incline diagonally forward from the rearmost portion of the base portion 4, the second support portion 52 is filled before the upright first support portion 51. It is possible to prevent the tipping during filling.

Finally, as shown in FIG. 3D, the first support portion 51 is filled with gas. Since the screen body 2 is attached to the first support portion 51, the screen body 2 is supported in an upright use state by being filled with the screen body 2 and standing upright as shown in the drawing.

As described above, by separately configuring the gas filling part of each part, it is possible to control how the projection screen device or the reflecting device 1 stands up in the filling / installation work, and during the filling / installation work. It is possible to efficiently fine-tune the position and orientation without causing problems such as tipping over.

In the storage work after use, contrary to the filling work, by exhausting the first support part 51, the second support part 52, and the base part 4 in this order, problems such as tipping do not occur and it is safe and quick. , The projection screen device or the reflection device 1 can be housed.

Next, the configuration of the projection screen device or the reflecting device 1A (second embodiment) and 1B (third embodiment) according to another embodiment of the present invention will be described with reference to FIGS. 4 and 5.

As shown in FIGS. 4A and 4B, the projection screen device or the reflection device 1A includes an angle adjusting means 6 at the lowermost portion of the second support portion 52A. The angle adjusting means 6 is configured by further providing an independent gas filling portion 6a inside the lowermost portion of the second support portion 52A, in addition to the gas filling portion 52a of other portions. Therefore, each rod-shaped body of the second support portion 52A includes two gas filling portions 6a and 52a, which are a gas filling portion 6a at the lowermost portion and a gas filling portion 52a located above the gas filling portion 6a. .. The lowermost gas filling portion 6a is used when adjusting the angle of the screen surface 2a of the screen body 2. That is, when the screen body 2 is used in an upright state, it can be used as shown in FIG. 4A by filling the gas filling portion 6a at the lowermost portion with gas, and the screen of the screen body 2 can be used. When the surface 2a is used diagonally upward, the gas filling portion 6a at the lowermost portion is not filled with gas or is degassed so that the second support portion 52A can be used as shown in FIG. 4 (b). Each rod-shaped body is formed to be a little short, and the screen body 2 is supported in an inclined state. If one gas filling portion 6a at the lowermost portion is provided as shown in the figure, it will function as an angle adjusting means 6, but if a plurality of gas filling portions 6a are provided, the angle can be adjusted step by step. May be good.

FIG. 5 shows a projection screen device or a reflection device 1B provided with a wedge-shaped gas filling portion 6a at the lowermost portion of the second support portion 52B as the angle adjusting means 6A. According to this configuration, it is possible to adjust the angle of the screen body or the reflector more appropriately.

If there is a gas filling portion 6a at the bottom of the second support portion 52A as the angle adjusting means 6, such as the projection screen device or the reflecting devices 1A and 1B, it is being used due to the influence of strong wind, lightning strike, or the like. Even when it is necessary to quickly put the projection screen device or the reflection device 1D into a safe state, it is possible to take an appropriate response by first degassing the gas filling portion at the lowermost portion.

As shown in FIG. 6, the angle adjusting means may be provided with an angle adjusting means 7 having an independent gas filling portion on the bottom surface side of the substrate portion 4 (fourth embodiment). According to such a configuration, the angle of the screen body 2 can be changed while maintaining a high strength of connection between the screen body 2 of the projection screen device or the reflection device 1C and the support portion 3. Further, the substrate portion 4 may be provided with a plurality of angle adjusting means 7 or the angle adjusting means 7 may be provided with a plurality of gas filling portions. According to such a configuration, the angle adjustment is staged. It will be something that can be done in a targeted manner.

FIG. 7 shows a projection screen device or a reflection device 1D according to still another embodiment (fifth embodiment) of the present invention.

The projection screen device or the reflecting device 1D is provided with a cover 8 that closes all the upper openings of the base portion 4, and also covers an air supply port 8a for sending gas into the space formed under the cover 8. It is provided in 8. According to this configuration, as shown in the figure, by using the compressor C to send gas from the air supply port 8a to the inside of the base portion 4 blocked by the cover 8, the sent gas is always sent to the base portion 4. Since the projection screen device or the reflection device 1D leaks from the bottom surface to the outside of the substrate portion 4, the projection screen device or the reflection device 1D floats in the air or is in a state close to this, and the frictional force between the projection screen device or the reflection device 1D and the installation surface is reduced. Therefore, fine adjustment of the position and orientation can be easily performed. Further, this fine adjustment of the position and orientation can be performed in the state of FIG. 3 (b) in the filling / installation work of FIG. 3, that is, the state in which only the base portion 4 is filled.

FIG. 8 shows a state in which the projection screen device and the reflection device 1A are used as a reflection device in an upright position.

In a natural turf ball game field, the sunlight S is blocked by the roof R of the viewing seat S, so that the turf T is not exposed to the sunlight S and the turf T withers. Alternatively, the reflector 1B is used. The projection screen device or reflector 1B includes a reflector instead of a screen. The reflector is a projector having the same vertical and horizontal dimensions at the same position as the screen device 2 for projection of each of the above embodiments or the screen body 2 of the reflectors 1, 1A, 1B, 1C, 1D, instead of the screen body 2. Alternatively, it is provided from above the screen body 2. As shown in the figure of the projection screen device or the reflector 1B provided with such a reflector, the turf T is arranged so that the turf T reflected by the reflector is exposed to the turf T not exposed to sunlight. It can be cultivated normally and the ground G can be kept in good condition. The reflector is not limited to the one having the same shape as the screen body as long as it can reflect at least sunlight, and naturally various materials can be adopted.

1,1A, 1B, 1C, 1D Projection screen device or reflector 2 Screen body 2a Screen surface 3 Base body 4 Base body 4a Gas filling part 5 Supporting part 5 Second supporting part 5a Gas filling part 6 Angle adjusting means (No. (2 Support additional type basic shape)
6A Angle adjusting means (second support additional type wedge shape)
7 Angle adjusting means (additional base part type)
8 Cover 8a Air supply port 51 First support part 52, 52A, 52B Second support part 52a Gas filling part C Compressor G Ground R Roof B Grandstand S Nikko T Grass

Claims (5)

A projection screen device or reflector having a screen body or a reflector and a base body that holds the screen body or the reflector in an upright use state by being filled with gas at least in a part thereof.
The base body includes a base portion having a grounding surface that is grounded in an upright use state, and a support portion that holds the screen body or the reflector.
Since the gas filling portion provided on the substrate portion and the gas filling portion provided on the support portion are independent of each other, gas filling can be sequentially performed on these .
The support portion includes a first support portion that holds the screen body or the reflector in a stretched state, and a second support portion that holds the screen body or the reflector in a working posture, and the first support portion. A projection screen device or a reflection device, characterized in that each of the second support portion and the second support portion has an independent gas filling portion. The projection screen device or a reflection device according to claim 1, wherein the substrate portion has the gas filling portion on the peripheral edge of the ground plane in an upright use state. The screen device and a reflector according to claim 1 or 2, wherein the first support portion has a gas-filled portion formed in a portion around the screen body or the reflector except for the substrate portion side. The projection screen device or reflector according to any one of claims 1 to 3, wherein the second support portion has an angle adjusting means capable of adjusting the holding angle of the screen body or the reflector. The angle adjusting means is provided with a plurality of gas filling portions in the base portion or the second support portion, and the angle of the screen body or the reflector is changed by filling or degassing the gas filling portions. The projection screen device or reflection device according to claim 4.

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