JPS61169540A - Openable dome roof - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a dome-shaped roof structure, and more particularly to a dome-shaped roof structure that can be partially opened and closed depending on the weather.

(Prior Art and Problems) As is well known, structures used for athletic events such as baseball stadiums and track and field stadiums do not have roofs attached to them.

This is intended to allow athletic competitions to be held in as natural a environment as possible, but if it rains or it rains during a competition, the competition must be suspended or canceled.

Therefore, all-weather stadiums have recently been proposed, and for example, air membrane structures are attracting attention.

However, the air membrane structure has the following problems.

In other words, in an air membrane structure, the roof is made of a membrane material made of synthetic resin, etc., and pressurized air that is slightly higher than atmospheric pressure is sealed inside. The entrance/exit structure is complicated to prevent leakage.

Furthermore, not only will lighting and ventilation inside become difficult, but the purpose of holding or watching competitions in a natural environment will be diminished.

This invention was made in view of the above-mentioned conventional problems, and allows athletics to be held in a natural environment by partially opening and closing the roof depending on the weather, allowing natural lighting and ventilation on sunny days. In addition to being able to do this even in rainy weather, ■
An object of the present invention is to provide a retractable dome roof that can be easily opened and closed.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a dome-shaped roof structure that is provided on a side wall erected on the ground so as to cover the inside. an annular fixed roof with an opening and a peripheral edge fixed to the side wall; and a plurality of substantially identical shapes obtained by dividing the opening into at least two or more parts, each of which is attached to the fixed roof and extends toward the center of the opening. It is characterized by a movable roof that is supported by extending telescoping beams and moves in the radial direction to open and close the roof.

(Embodiments) Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 4 show an embodiment of the retractable dome roof according to the present invention.

The roof structure shown in the figure is applied to an athletic stadium with a substantially circular planar shape, and includes a cylindrical side wall 10 erected on the ground, a stand 11, and an upper end of the side wall 10. A dome-shaped roof is provided to cover the inside, and this roof portion includes a ring-shaped fixed roof 12 with a substantially circular opening in the center and a peripheral edge fixed to the side wall 10, and a navigation opening. 14 and a movable roof 16 that opens and closes by moving in the radial direction.

Here, FIG. 1 shows a state in which the movable roof 16 is moved outward and the opening 14 is opened, and FIG. 2 shows a state in which the movable roof 16 is opened.
6 is moved inward to close the opening 14.

As shown in FIG. 2(a), the movable roof 16 is composed of eight substantially identical fan-shaped pieces divided into eight pieces at equal angular intervals with the center of the circular central opening 14 as a base point. The side edges of each movable roof 12 overlap at adjacent portions when the opening 14 is closed, and are made of a lightweight material such as cloth or an ultra-thin metal plate. The telescopic beams 20 are aligned along their respective central axes.
A pair of idle rollers 23 are attached to both outer ends.

Each guide roller 23 is a pair of guide rollers 22 and 22 that are installed in parallel on the fixed roof 12 with the telescoping beam 20 at the center and at a width interval that is approximately the same as the outer end width of the movable roof 16. roll along.

Details of how each movable roof 16 is attached to the telescopic beam 20J3 and the fixed roof 12 are shown in FIGS. 3 and 4.

The extensible beam 20 includes an outer cable 20a and an inner cable 20 having a substantially rectangular hollow cross section.
The inner cable 20b has a basic structure shown in FIG. A plurality of mounting brackets 20d are inserted in contact with each other, and a plurality of mounting brackets 20d are protruded from the upper surface of the inner cable 20a at predetermined intervals along the longitudinal direction. The movable roof 16 protrudes outward from a guide opening 20e that serves as a guide when the movable roof 16 moves.
The movable roof 16 is fixed to the upper end of the movable roof 16.
A predetermined distance is maintained between the outer soft material 20a and the outer soft material 20a.

On the other hand, the outer softness 20a of the expandable beam 20 is fixedly installed on the fixed roof 12 with reinforcing members 26 interposed therebetween, along the beam members 24 provided on the fixed roof 12.

Further, a steel wire, a chain, or the like attached to a power source such as a motor rotationally driven by electricity or compressed air is connected to the inner rope 20b, and when the power source is started, the inner rope 20b is When the inner cables 20b are moved in the direction of the arrow shown in FIG. 3 and the inner cables 20b are most protruded from the outer cables 20a, each movable roof 16 closes the opening 14 as shown in FIG. When the movable roof 20b is housed in the outer soft shell 2Oa, each movable roof 16 is on the fixed roof 12 and the opening 14 is open, as shown in FIG.

Note that the width of the fixed roof 12 and the length of the movable roof 1G are approximately the same, so that when the opening 14 is opened, the movable roof 1
6 is preferably not exposed to the outside from the fixed roof 12 in terms of appearance.

Now, in the roof structure configured as described above, in rainy weather or in summer, the movable roof 16 is moved inward to close the opening 14, and the arch-shaped roof is completed with the fixed roof 12.
In addition to preventing the intrusion of rainwater and blocking sunlight, the movable roof 16 can be moved outward and the opening 14 can be opened in mid-season or under clear skies.
will be opened to the public to enable athletic competitions under the sky.

Further, since the movable roof 16 is moved using the telescopic beam 20, the opening 14 at the center of the dome does not have a fixed beam, giving a large sense of openness.

In addition, in the above embodiment, a circular sports stadium was illustrated, but
Of course, the present invention can also be applied to other shapes, such as ellipses and polygons.

Further, the shape of the central opening 14 is not limited to a circle, but may also be an ellipse or a polygon, and the number of divisions of the movable roof 16 that divides the central opening 14 into substantially the same shape is not limited to the above embodiment, but may be two or more. Can be adopted.

Furthermore, the movable roof 16 is different from the fixed roof 1 as in the above embodiment.
In addition to being moved in the radial direction above the fixed roof 12, it may also be moved below the fixed roof 12 or stored inside the fixed roof 12.

(Effects of the Invention) As described above in detail in the embodiments, in the retractable dome roof according to the present invention, the movable roof can be moved depending on the surrounding environment to partially open and close the roof. On the one hand, competitions can be held even in rainy weather or under the scorching sun, and on the other hand, in mid-season and sunny weather, natural lighting and ventilation are possible, allowing competitions to be held in a natural environment.

In addition, the movable roof can be easily moved by expanding and contracting the telescopic beams, making it possible to quickly respond to sudden changes in environmental conditions.

[Brief explanation of the drawing]

1 to 4 show an embodiment of this invention,
Figure 1 shows a plan view (a) and a cross-sectional view (a) when the movable roof is opened.
b), Figure 2 is a plan view (a) and sectional view (b) when the movable roof is closed, and Figure 3 is a sectional view showing the installation state of the telescopic beam.
FIG. 4 is a sectional view taken along the line AA in FIG. 3. 10... Side wall 12... Fixed roof 14... Opening 16...
Movable roof 20... Telescopic beam 22...
... Guide rail 24 ... Beam material 26
...Reinforcement member patent applicant Obayashi Co., Ltd. Company agent Patent attorney
- Kensuke Shiro Figure 1 Figure 2 (Q) Figure 3 Figure 4 ff:

Claims (1)

[Claims] In a dome-shaped roof structure provided on a side wall erected on the ground so as to cover the inside, an annular fixed roof whose roof portion is open at the center and whose periphery is fixed to the side wall;
A movable roof consisting of a plurality of substantially identical shapes obtained by dividing the opening into at least two or more parts, which is attached to the fixed roof and supported by a telescoping beam extending toward the center of the opening, and which moves in the radial direction to open and close it. A retractable dome roof characterized by consisting of.