JPH0347344A - Openable dome - Google Patents

Abstract

PURPOSE:To simplify structure and to reduce number of guide members for the title structure by slidably overlapping the lower end edges on both sides of arch-shaped shells made in numbers by dividing a concentric sphere along meridians, and by openably hinging the same to a fixed lower structure. CONSTITUTION:A hollow hemispherical dome is constructed of a plurality of arch-shaped shells 1... made by dividing a concentric sphere along meridians. Lower end edges on both sides of each of the shells 1... are slidably laid overlapping each other and are openably hinged to pivots 3 that are provided to a fixed lower structure 2. An arch-shaped guide frame 4 is installed in the direction of opening and shutting of the shells 1... and the dome is opened and shut as the shells 1... move along the guide frame. Furthermore steps 4a and 4a in dimension the same as the thickness of the shells 1... are provided to the guide frame 4 to form stoppers for the shells 1....

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a retractable dome that is applied to various stadiums, event venues, and the like.

(Prior Art) Conventionally, in this type of dome, for example, the dome main body is divided into a plurality of arc shapes in the longitudinal direction, and a guide rail is laid for each divided piece, and when the dome is opened and closed, the dome body is divided into a plurality of arc shapes. The divided pieces are moved along the dome, and are arranged to overlap and store in a telescopic tube shape at one end or both ends of the dome, or to be expanded over the entire surface of the dome.

(Problems to be Solved by the Invention) In the conventional retractable dome, a guide rail is required for each divided piece, which increases construction costs and requires extra space for laying each guide rail. It was uneconomical.

The present invention has been proposed in view of the problems of the prior art, and its purpose is to provide a retractable dome that is simple in structure and requires a minimum number of guide members for opening and closing the dome. be.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the retractable dome according to the present invention comprises a hollow hemispherical dome and a plurality of arched shells formed by dividing concentric spheres along the radial line. The lower edges of both shells are slidably overlapped and pivoted to a fixed lower frame so as to be openable and closable.

When opening and closing each of the arch-shaped shells, an arcuate guide frame is installed across the opening and closing directions, and each shell is moved along the guide frame.

Further, the frame is provided with a stepped portion having a thickness equal to the thickness of the arched shell so as to constitute a stopper for the arched shell.

Furthermore, lighting and audio equipment are mounted on the arch-shaped guide frame.

(Function) Since the present invention is constructed as described above, the dome is opened and closed by rotating each of the arched shells about a pivot with respect to the fixed lower structure, The dome is fully opened by rotating toward the end of the dome and overlapping each other. Further, the dome is brought into a fully closed state by rotating each of the shells toward the top of the dome and bringing the adjacent shells into contact with each other.

In the invention as claimed in claim 2, an arch-shaped guide frame is constructed over the opening and closing direction of each of the shells, and the arch-shaped shell is easily moved along the guide frame, and the arch-shaped shell is attached to the guide frame. It supports the load.

The invention according to claim 3 provides the guide frame with a step portion equal to the wall thickness of the shell, and uses the step portion as a stopper when the shell moves along the guide frame.
The shell is positioned.

According to a fourth aspect of the invention, the arch-shaped guide frame serves both as a pedestal for lighting and audio equipment and as a guide member for each of the shells.

(Example) The present invention will be described below with reference to the illustrated embodiments.

(1) is a plurality of arch-shaped shells formed by dividing a hollow hemispherical dome along the meridian of a concentric sphere, and (2) is a fixed lower frame forming a part of the concentric sphere.

Both lower edges of each of the arched shells (1) are slidably overlapped with each other, and are pivoted into the fixed lower groove (2).
3).

FIG. 7 shows the details of the shaft support of the shell, and shows the space ( 1b
), fit the disc-shaped bearings (lc) provided at the lower edges of both sides of the other arched shell (1) as shown in the arrows, and then Hole (1a'
3 (A pivot support of the arched shell is constructed by inserting the pivot (3) into la'1 and (lc'l).

An arch-shaped guide frame (4) that extends past the zenith of the dome in the opening and closing direction of each shell (1) is spanned over the lower structure (2), and the frame (4) is provided with an arch-shaped guide frame (4) that passes through the top of the dome in the opening and closing direction of each shell (1). ) is provided with a step portion (4a) having a thickness equal to that of the portion (4a).

Since the illustrated embodiment is configured as described above, when the dome is opened on a sunny day, each of the arched shells (1) is moved by a drive mechanism (not shown) to a pivot point (3).
From the state shown in FIGS. 1 and 5, the shells (1) are rotated toward both ends of the dome and sequentially overlap with the outside of the fixed lower structure (2), thereby storing the shells (1) at both ends of the dome. do. (See Figures 2 and 6) At this time, each of the arched shells (1) smoothly moves along the arched guide frame (4), and
) supports a part of the load of the arched shell (1), which allows the shell (1) to have a light structure.

Next, when the dome is closed in the event of rain or the like, each of the arched shells (1) is rotated around the pivot (3) along the guide frame (4) toward the zenith of the dome;
Close the dome as shown in FIGS. 1 and 5.

At this time, the stepped portion (4) provided on the guide frame (4)
In a), the ends of the arched shell (1) on the inner circumferential side abut, the stepped portion (4a) serves as a stopper, and the arched shell (1) is stopped at a predetermined position. .

Further, the guide frame (4) is used as a frame for lighting, sound, ventilation, and disaster prevention equipment when the dome is closed.

(Effects of the Invention) As described above, the retractable dome according to the present invention consists of a hollow hemispherical dome made up of arched shells in which concentric spheres are divided along the meridian, and the lower edges of both sides of each shell are flexible. Since the dome is slidably overlapped and pivoted to the fixed lower frame so as to be openable and closable, the dome can be opened and closed by rotating each of the arched shells about the pivot,
The dome can be used as an all-weather dome.

In addition, since the plurality of arched shells, which are the divided pieces of the dome, are configured to open and close by a common pivot, it is necessary to install guide rails for each dome divided piece, as in conventional openable domes. Furthermore, there is no need for extra site area for laying the guide rails, which improves economic efficiency.

In the invention of claim 2, an arch-shaped guide frame is constructed over the opening and closing direction of each of the arch-shaped shells, so that each of the arch-shaped frames can smoothly move along the guide frame, and the guide frame By supporting part of the load of the arched shell, the shell can be made light in structure.

Furthermore, the guide frame is used as a stand for lighting, sound, ventilation, and disaster prevention equipment when the dome is closed.

According to the third aspect of the invention, the guide frame is provided with a stepped portion equal to the wall thickness of the arched shell, and constitutes a part of a stopper of the shell, so that the shell is accurately stopped at a predetermined position when the dome is closed. It is.

According to a fourth aspect of the invention, lighting and audio equipment are mounted on the arch-shaped guide frame, and the mount of the equipment and the guide member of the shell are used as the guide frame, thereby simplifying the structure.

[Brief explanation of drawings]

1 and 2 are side views showing an embodiment of the retractable dome according to the present invention when the dome is closed and when the dome is opened, respectively, and FIG. 3 is a plan view of the retractable dome. The half shows the state when the dome is closed, and the lower half shows the state when the dome is open. 4 is a view taken along arrow A-A in FIG. 3, FIGS. 5 and 6 are views taken along arrow B-B in FIG. 3, and FIG. The figure shows the state when the dome is open. FIG. 7 is an exploded perspective view of the pivot portion of the arched shell. (1) --- Arched shell, (2) --- Fixed lower structure, (3) --- Pivot, (4) --- Arched guide frame, (4a) ---
Step part. Figure 1 Second circle

Claims (1)

[Claims] 1. A hollow hemispherical dome is composed of a plurality of arched shells formed by dividing concentric spheres along meridians, and the lower edges of both sides of each shell are slidably overlapped. Also, an openable dome characterized by being pivotally supported on a fixed lower frame so as to be freely openable and closable. 2. The retractable dome according to claim 1, wherein an arched guide frame is constructed over the opening and closing directions of each of the arched shells, and each of the arched shells moves along the guide frame. 3. The retractable dome according to claim 2, wherein the top surface of the arched guide frame is provided with a stepped portion having a thickness equal to the thickness of the arched shell. 4. The retractable dome according to claim 1, wherein lighting and audio equipment are mounted on the arch-shaped guide frame.