JP2888997B2 - Light shielding structure of truss structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light-shielding structure for a truss structure, more specifically, for example, in a dome stadium or a gymnasium or the like, which is made of a truss structure, through an exterior material such as a translucent film material. The present invention relates to a light-shielding structure of a truss structure capable of adjusting and blocking sunlight rays or the like entering a hall or a hall, and quickly setting the inside of the hall to a dark room state.

[0002]

2. Description of the Related Art In recent years, at stadiums and gymnasiums such as all-weather stadiums, gymnasiums and the like have been provided with a truss structure provided with an exterior material. In order to secure the brightness inside, the exterior material is often formed of a material such as a film material or a glass material having a light transmitting property.

[0003] However, with the diversification of the manner of use and use of such a structure, there are cases where the inside of the structure is used in a dark room state. In order to cope with such a situation, a large number of light-shielding curtains or light-shielding curtains are provided near the ceiling surface so as to be automatically opened and closed.

[0004]

However, the opening and closing of individual doors and the automatic opening and closing of curtains as described above are extremely complicated operations, and all of them are fatal problems that a dark room state cannot be quickly obtained. He had a point. In addition, the configuration of the apparatus itself becomes very complicated, the cost is remarkably increased, and maintenance such as maintenance management cannot be easily performed.

[0005] Therefore, the present invention has been made to solve the above-mentioned conventional problems, and the interior of a structure can be brought into a dark room state in a relatively short time, and the whole structure is simple and easy to handle. It is an object of the present invention to provide a light shielding structure of a truss structure that is easy to use.

[0006]

That is, in order to solve the above-mentioned problems, the present invention provides a truss structure 1 formed of a plurality of trusses 9. In the truss structure, tube-shaped expansion / contraction bodies 12 having light-shielding properties and capable of expanding / contracting by supplying / discharging a fluid come into contact with the space portions 13 formed by the truss members 9 at the time of expansion. This is a light-shielding structure of a truss structure that is arranged so as to be able to move.

[0007]

Therefore, in the light-shielding structure of the truss structure characterized by the above-mentioned structure, when a fluid is supplied to the expanding and contracting bodies 12 which are normally in a contracted state, the expanding and contracting bodies 1 having light-shielding properties are provided.
2 are expanded and come into contact with each other. By the contact of the plurality of expansion / contraction bodies 12, light from the outside to the inside of the structure is blocked, and a dark room state can be obtained.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 denotes a joining material formed of a steel ball having a large number of holes 3 having internal thread portions formed on an inner peripheral surface thereof as shown in FIG. 4 and a truss member 9 having bolts 8 attached to both ends of a pipe-like truss member body 5 via sleeves 6 and a washer 7. 4 are screwed into predetermined holes 3 to form a skeleton. As shown in FIG. 2, an outer membrane 10 and an inner membrane 11 are stretched on the upper and lower portions of the truss structure 1 with a certain tension, and these membranes 10, 11 are respectively transparent. It is made of a material having optical properties.

Reference numeral 12 denotes a tube-shaped expanding / contracting body suspended in a state of being inserted into a space portion 13 formed between the truss members 9, and aluminum vapor-deposited on the surface thereof so as to shield sunlight rays and the like. The expansion / contraction body 12 is formed so as to be expanded and contracted by compressed air supplied / discharged from a blower (not shown) via a pipe 14 and the like.
Are in contact with each other to block light from entering the structure.

In FIG. 4, reference numeral 16 denotes a spring provided inside the expansion / contraction body 12 for contracting the expandable / contractible body 12 in a folded state, and a plurality of springs are provided at an upper part and a lower part at the time of expansion. It becomes.

The present embodiment has the above-mentioned configuration. When the interior of the structure is made dark by using the above-described configuration, for example, the following is performed.

First, as shown in FIG. 4, the expansion and contraction bodies 12 are normally in a contracted state, but when the blower is operated, the compressed air is supplied to the expansion and contraction bodies 12 through the pipe 14. As a result, the expanding and contracting bodies 12 gradually expand against the urging force of the springs 16 and the adjacent expanding and contracting bodies 12 come into contact with each other as shown in FIG. In this state, the blower is stopped. However, since the expansion and contraction members 12 have a light-shielding property, the mutual contact blocks the light from entering the inside of the structure, so that the dark room state can be changed very easily and quickly. You can get it.

On the other hand, when it is not necessary to block the light, such as at night, for example, if the compressed air in each of the expansion and contraction bodies 12 is discharged using the blower, the tension of the springs 16 is also helped. Can be contracted smoothly and smallly, so that there is no inconvenience that the expanding / contracting body 12 itself or its shadow becomes obstructive and the external appearance is good even if the inner membrane 11 is not separately provided as in this embodiment. It can be hung.

Since the expansion and contraction members 12 are simply expanded and contracted simply by supplying and discharging compressed air, the dark room state can be quickly obtained and released. It is easy to use.

The space 1 formed between the truss members 9
Since the expansion and contraction bodies 12 are disposed in the space 3, there is an advantage that the space portions 13 can be effectively used.

Further, this light-shielding structure can not only obtain a dark room state inside the structure, but also contribute to improvement of heat insulation and acoustic effects inside the structure.
There is also an advantage that it is possible to change the size, shape, etc. of..

In the above embodiment, a case where the present invention is applied to a flat truss structure has been described. However, the present invention is not limited to this case. For example, the present invention is applicable to an arch or dome truss structure. Of course, the expansion and contraction bodies 12 may be formed in a tubular shape in accordance with the shape of the space 13 formed between the truss members 9.

Further, if an elastic body such as a spring 16 is provided inside the expanding / contracting body 12 as in this embodiment, there is an advantage that the expanding / contracting body 12 can be contracted smoothly and small, but this elastic body is not necessarily provided. They may not be provided, and may be provided as needed.

Further, although compressed air is used in the above embodiment as a means for expanding / contracting the expanding / contracting bodies 12, water or the like may be used, and the expanding / contracting bodies 12 are connected by a hose or the like. May be. The point is that the expansion and contraction bodies 12 can be configured to be freely expandable and contractable by supplying and discharging the fluid, and the specific piping configuration does not matter at all.

Further, in this embodiment, aluminum is deposited on the surface of the expansion and contraction members 12 to provide light shielding properties, but they may be made of a material having light shielding properties.

Further, the present invention is not limited to the membrane structure as in the above embodiment, but is applicable to, for example, a truss structure using glass or the like as an exterior material. The usage is not limited to the stadium.

In addition, the shape of the expanding / contracting body 12 and the
Can be freely changed within the intended range of the present invention.

[0023]

As described above, according to the present invention, a tubular expandable member having a light-shielding property which can be expanded and contracted by supplying and discharging a fluid is provided in a space formed in the truss structure. Since a plurality of the truss structures are arranged so as to be in contact with each other, the expansion and contraction of the expansion and contraction body by the supply of fluid can shield sunlight rays from entering the inside of the truss structure from the outside. Compared to the conventional one, the state of the dark room inside can be obtained quickly and can be configured very easily, so not only can it be produced at low cost,
The remarkable effect was obtained that the maintenance and inspection were not complicated.

In addition, since the expanding and contracting body is disposed in the space of the truss structure, there is also a specific effect that the space can be effectively used.

[Brief description of the drawings]

FIG. 1 is a plan view showing a truss structure.

FIG. 2 is a rear view showing the truss structure.

FIG. 3 is a partial cross-sectional front view showing one unit of the truss structure.

FIG. 4 is a cross-sectional view showing the expanding / contracting body in a contracted state.

FIG. 5 is a cross-sectional view showing the expansion / contraction body in an expanded state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Truss structure 9 ... Truss 10 ... Exterior material 11 ... Interior material 12 ... Expansion / contraction body 13 ... Space part 16 ... Elastic body

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Ikuya Toda 3-22-1, Higashiyama, Meguro-ku, Tokyo Inside the Taiyo Kogyo Co., Ltd. Tokyo Branch (72) Inventor Akifumi Watanabe 3-22-1, Higashiyama, Meguro-ku, Tokyo (56) References JP-A-2-112570 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) E06B 9/24 E04H 3/14 E04H 15 / 58 E04B 1/32 E04B 7/02 E04C 3/00

Claims (3)

(57) [Claims] 1. In a truss structure in which a translucent exterior material 10 is provided on a truss structure 1 formed of a frame with a large number of truss members 9, a space 1 formed by the truss members 9 is provided.
3. A truss characterized in that a plurality of tubular expandable members 12 having light-shielding properties and capable of expanding and contracting by supplying and discharging a fluid are provided so as to be able to come into contact with each other when expanded. Light shielding structure of the structure. 2. The light-shielding structure for a truss structure according to claim 1, wherein an interior material 11 is provided inside the first truss structure 1 to prevent the first expansion and contraction bodies 12 from being exposed. 3. An elastic body 16 is provided on the inner wall surface of the expansion / contraction body 12.
The light-shielding structure for a truss structure according to claim 1 or 2, wherein the light-shielding structure is installed in an installed state.