JPS61233140A - Opening and closing type 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.

1. In other words, an air membrane structure consists of a roof 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 to the outside.

Furthermore, not only will lighting and ventilation inside the stadium 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. To provide a dome-shaped roof structure which can be opened and closed even in rainy weather and can be opened and closed easily.

(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 an external wall erected on the ground and covers the inside of the external wall, with the roof located in the center. It is composed of a fixed roof having a circular opening and a pair of semicircular movable roofs that are divided into two parts, and the movable roofs are movable roofs that move toward each other along a plurality of guide members provided on the fixed roof. It is characterized in that the openings are opened and closed so as to be close to each other or to be separated from each other.

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

FIGS. 1 and 2 show an embodiment of the retractable dome roof according to the present invention.

The dome roof shown in the figure has a cylindrical outer wall 10 that is erected on the ground and has an open upper end, and a donut-shaped outer wall 1.0 that has a peripheral edge fixed on the outer wall 1.0 and a circular concentric opening 12 in the center. It is generally composed of a fixed roof 14 and a pair of movable roofs 16, 16 that open and close the opening 12.

The fixed roof 14 has a dome shape with a spherical surface with a radius of curvature "2" cut out by the opening 12, while the movable roof 16 has a
The opening 12 has a semicircular planar shape divided into two parts, and when the pair of movable roofs 16 and 16 are brought into contact with each other, a dome with a radius of curvature r is formed. It is smaller than the radius of curvature r2, and the plane radius of the movable roof 16 and the width W of the fixed roof 4t114 are set to be approximately the same length.

The movement mechanism of each movable roof 16.16 includes a guide member 20 constructed of a guide rail and rack laid along the curvature of the fixed roof 14 via a spacing adjustment member 18 for adjusting the height. and a guided member 22 attached to the movable roof 16 and equipped with a gear that meshes with rollers and racks that move along the guide rail.The gear of the guided member 22 is driven by an electric motor, compressed air, hydraulic pressure, etc. When rotated, the movable roofs 16 approach each other along the guide member 20 to close the opening 12, and when rotated in the opposite direction, they move away from each other to open the opening 12.

FIG. 2 is a perspective view showing the opening and closing states of the opening 12 described above.

Note that the guide members 20 are provided at three locations on the center axis and at both ends of each movable roof 16.16, and a plurality of guided members 22 are also provided correspondingly, and the rotationally driven gears have different A moving device is installed.

The differential device prevents mutual movement of the guide members because it is difficult to synchronize multiple drive sources when the movable roof 16 becomes so heavy that it becomes difficult to move it with a single drive source. This is to absorb errors and prevent damage to any of the drive sources due to excessive load being applied to them.

(Effects of the Invention) In the retractable dome roof configured as described above, in rainy weather or in summer, the movable roofs 16 are moved close to each other and the openings 12
By blocking it, you can prevent rainwater from entering and sunlight from entering.
To enable athletic competitions and events to be held in rainy weather or under the scorching sun.

On the other hand, in the middle of the season or when the weather is clear, the movable roofs 16 are separated from each other and the openings 12 are opened, allowing athletics to be held under the sky.

Furthermore, when the opening 12 is closed by the movable roof 16 at night, the interior illumination light is reflected by the movable roof, thereby enhancing the illumination effect.

Further, by making the radius of curvature of the movable roof 16 smaller than that of the fixed roof 14, the stability of the movable roof 16 can be increased when the opening 12 is closed.

Furthermore, the radius of the movable roof 16 is set to the width W of the fixed roof 14.
If the movable roof 16 is made substantially the same as the above, when the opening 12 is opened, the movable roof 16 will be on the fixed roof 14 and will not protrude from the fixed roof 14 to the outside, which will improve the appearance.

[Brief explanation of drawings]

Figures 1 and 2 show an embodiment of the present invention, with Figure 1 (A) being an overall view, Figure 1 (B) being a plan view of the same, and Figure 2 (A) showing an opening. Perspective view of closed state, Figure 2 (B)
FIG. 2 is a perspective view with the opening opened. 10...Outer wall 12...Open
Mouth 1'4...Fixed roof 16...
Movable roof 18... Spacing adjustment material 20...
...Guiding member 22...Guided member Patent applicant Obayashi Corporation Agent
Person Patent Attorney - Kensuke Iro 1stjA (A) (B)

Claims (2)

[Claims] (1) In a dome-shaped roof structure whose periphery is fixed to an upright external wall, the roof consists of a fixed roof with a circular opening in the center and a pair of semicircular roofs that divide the opening into two. 1. A retractable dome roof comprising a movable roof, and the movable roof opens and closes the opening so as to approach or separate from each other along a plurality of guide members provided on the fixed roof. (2) The retractable dome roof according to claim 1, wherein the radius of curvature of the movable roof is smaller than the radius of curvature of the fixed roof.