JPS6337413Y2 - - Google Patents

Description

[Detailed description of the invention] The purpose of this invention is to prevent the inside of the air house from rising excessively due to sunlight by providing a light-shielding film on the outside of the ceiling of a conventional air house without supports that is inflated with compressed air. shall be.

Examples will be described below.

In FIGS. 1 and 2, A is an air house and 1 is its vinyl membrane.

Reference numeral 2 denotes a light-shielding film, which is stretched on the outside of the ceiling of the air house. For convenience of explanation, FIG. 1 shows a case where only one light shielding film covers only a part of the ceiling.

The light shielding film 2 has a quadrilateral shape, and one side 3
is fixed, for example, to a vinyl membrane at the top of the air house A, and the other opposite side 4 is allowed to move freely approximately parallel to one side 3.
For this purpose, strings or metal rings 7 are attached to the other two movable sides 5 and 6 of the light-shielding film in contact with the fixed side 3 at appropriate intervals. Note that the ring body 7 is also attached to both ends of the fixed side 3, respectively.

Two operating strings 8 and 9 are tied at 10 to the ring 7' at the outermost end of the movable sides 5 and 6 which are in contact with the fixed side 3 and movable. pass through each of the rings 7 and pass outside the air house to a suitable place on the ground, and the string 8 passes in the opposite direction to the outside of the air house to reach a suitable place on the ground. do.

By the way, in order to move the freely movable side 4 of the light shielding film in that direction relative to the fixed side 3, move the string 9 along the arrow a.
Just pull it in the direction. In this case, the string 8 is allowed to move by the same amount in the direction of arrow b.

By the way, as shown in FIG.
If both ends of the strings are tied and passed, the strings 8 and 9 move together in the same direction, so they can be driven manually or by a motor.

In this way, the free edge of the light-shielding film moves like a curtain and its width is reduced, making the ceiling of the air greenhouse brighter.

Next, in order to spread the light-shielding film, it is sufficient to move the operating strings 8 and 9 by the same amount in the opposite direction to a and b.

In this way, the present invention makes it possible to open and close the light-shielding film on the ceiling of the air house only by operating on the ground without having to climb to the top of the air house, and the temperature inside the air house can be easily adjusted as necessary.

Although the embodiments shown in FIGS. 1 and 2 have one light-shielding film for convenience of explanation, the number can be selected as necessary depending on the size of the light-shielding film.

In addition, Fig. 6 shows the case of a hemispherical air house, and in this case, the shape of the light-shielding film is triangular, so annular bodies are placed on both moving sides 5' and 6' with respect to fixed side 3. It may be provided, or only the moving side 5' may be provided.
Furthermore, in this case, the fixed side 3 may be used as a fixed end 3' as shown in FIG.

[Brief explanation of the drawing]

Fig. 1 is a plan view of an embodiment of the present invention, Fig. 2 is a front view thereof, Figs. 3 and 4 show the operation of the light-shielding film, and Fig. 3 is an enlarged plan view of the film in its open state. figure,
Fig. 4 is an enlarged plan view of the half-closed state, Fig. 5 is an explanatory diagram when the operating strings 8 and 9 are integrated and connected, and Fig. 6 shows that the light-shielding film is triangular when the air house is hemispherical. FIG. 7, which is a plan view of another embodiment, is an explanatory diagram of a triangular light-shielding film similar to FIG. 6. Explanation of symbols, A... Air house, 1... Vinyl film, 2... Light-shielding film, 3... Adhesive side of light-shielding film,
4, 5, 6... Moving side of the light shielding film, 7... Ring body,
8, 9...operation string.

Claims (1)

[Scope of utility model registration request] One side of the light-shielding film is fixed at a suitable location on the outside of the ceiling vinyl film of the air house, and rings for passing the operating string are placed at appropriate intervals on the other two freely movable sides that contact the fixed side. In addition, similar rings are provided at both ends of the fixed sides, and two operating strings are tied to the outermost rings of each of the two movable sides, and one of them is attached to the operating string. A string passes through each ring on each of the movable sides and is disposed between the outermost ring and a suitable position on the ground of the air house, and the other operating string is connected to the ring in the opposite direction to the operating string. An air house with a light-shielding film placed between the outermost ring and the appropriate position on the ground of the air house.