JPH0384141A - Movable roof - Google Patents

Abstract

PURPOSE:To increase an opening ratio to an arena by bringing a hemispherical movable roof to a rotatable state along a guide rail laid onto the outer circumferential surface of the arena centering around a shaft at the eccentric position of the arena. CONSTITUTION:A flat roof 2 is extended horizontally in an eave shape from a top face toward the central direction of an external wall 1 circularly disposed in upright in a surrounding manner on an outer circumference. A fixed roof 3 is erected at the edge of the flat roof 2 in a hemispherical shape while being unified with the flat roof 2. One part of an arena 4 is convered with the hemispherical fixed roof 3, and the top face of a section brought to an opened state is covered with a hemispherical movable roof 7, a top section of which is supported pivotally by a shaft 6 fixed at the eccentric position 5 of the arena 4. Guide rails 8, 8a are laid onto the surface of the flat roof 2, and movable roofs 7a, 7b are turned and moved left and right.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a retractable roof for an arena with a roof.

(Prior Art) Conventionally, the vertically retractable dome roof of an arena has a fixed roof around the outside of the arena, and a vertically retractable movable roof extending from the fixed roof toward the top of the arena.

(Problem to be solved by the invention) Therefore, it is undeniable that the fixed roof protrudes above the audience seats in the arena, which lacks a sense of openness, and at the same time, there is a need to increase the movable power capacity with a roof that can be opened and closed vertically. Another important technical issue was the need for a braking mechanism to prevent the roof from falling by itself.

The present invention has been made in view of the above circumstances, and its purpose is to provide a rotatable retractable roof that provides an excellent sense of openness and that does not require much storage space and is free from the risk of natural falls. .

(Means for Solving the Problem) In order to achieve the above object, the retractable roof of the present invention has a retractable roof for an arena, which includes a flat roof extending slightly horizontally from the upper edge of the peripheral wall toward the center, and a retractable roof on the flat roof. is provided with a fixed roof that is raised up into a hemispherical shape and whose open edge reaches an eccentric position on the front side of the arena, and is further provided with a fixed roof on the open edge side of the fixed roof and with the eccentric position of the arena as a rotation axis. The top of the hemispherical movable roof is pivotally supported, while the bottom of the movable roof is supported by guide rails laid on the flat roof.
It is characterized in that the movable roof is redundantly rotated toward the fixed roof side.

(Function) A hemispherical movable roof rotates around a rotation axis located at an eccentric position of the arena along a guide rail laid on a flat roof surrounding the outer periphery of the arena. When the movable roof is fully opened, it overlaps the fixed roof.

At this time, since the flat roof is horizontal, the rotating direction of the movable roof is horizontal.

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

Fig. 1 is a schematic diagram of an arena equipped with a retractable dome roof, in which a flat roof 2 extends horizontally from the top surface in the form of an eave toward the center of an outer wall 1 that stands in a circular manner surrounding the outer periphery. ing. The flat roof 2 has an extremely short extension distance at one end of the outer wall 1 and a long extension distance from the other end, so that it has a planar shape close to a crescent shape.

Furthermore, a fixed roof 3 is formed integrally with the flat roof 2 in a hemispherical shape at the end edge of the flat roof 2 that protrudes from the other end. These outer walls 1 and flat roof 2. The planar shape of the fixed roof 3 and the position of the arena 4 are shown in FIG. 2 for easy understanding. As shown in FIG. 2, since the shape of the flat roof 2 is such that it protrudes from one end toward the center, the center point of the arena 4 is located at the outer wall 1.
It is located slightly eccentrically towards the other end from the center point of the circle surrounding it. Further, the protruding position of the fixed roof 3 is eccentric from the center point of the arena 4 toward the center of the flat roof 2 formed in a crescent shape, and the outer edge of the fixed roof 3 reaches the eccentric position 5 of the arena.

In other words, a part of the arena 4 is covered with a half-moon-shaped fixed roof 3, and the other part is in an open state, and the top surface of this open part is covered by the open end edge of the fixed roof 3. It is covered with a hemispherical movable roof 7 whose top part is rotatably supported by a rotation shaft 6 fixed at an eccentric position 5 of the arena.

The radius of curvature of the movable roof 7 is slightly larger than the radius of curvature of the fixed roof 3, and when the movable roof 7 moves toward the fixed roof 3 with the rotation axis 6 as the rotation center axis, the fixed roof 3
is sized so that it overlaps the outer surface of the Moreover, the movable roof 7 has a divided structure into right and left parts from its center, and consists of a -pair of movable roofs 7a and 7b. When these movable roofs 7a and 7b rotate left and right about the rotation axis 6, their bottoms are supported so that they can rotate freely along the rotation locus. Guide rails 8, 8a are laid on the surface of the flat roof 2 along the rotation loci drawn by the left and right ends of the bottom, respectively, when the movable roofs 7a, 7b rotate. The guide rail 8 guides and supports the bottom ends of the movable roofs 7a and 7b on the opposing surfaces when they are closed together, and the guide rail 8a guides and supports the bottom ends of the movable roofs 7a and 7b on the outside respectively. It is intended to guide and support.

When an arena with such a retractable dome roof is viewed from the side and shown in FIG. 3, the movable roof 7 moves on the horizontal flat roof 2 toward the fixed roof 3 with the rotation axis 6 as the rotation axis point. It can be seen that it rotates horizontally. At this time, the rotation shaft 6 is installed at an eccentric position shifted from the center of the arena 4 toward the flat roof 2 (indicated by p in the figure), and the outer edge of the fixed roof 3 is rotated at this eccentric position. It supports the moving shaft 6. Therefore, 1. The opening ratio of the arena 4 is widened from the center point toward the flat roof 2 by the amount that the arena's eccentric position 5 is eccentric.

(Effects) As explained in detail above, according to the retractable roof of the present invention, in the retractable roof of an arena, a flat roof is provided that extends slightly horizontally from the upper edge of the peripheral wall toward the center, and The extension position of the fixed roof formed by integrally rising into a hemispherical shape is set at a position shifted from the center position of the arena toward the flat roof, that is, the extension position of the fixed roof is set at an eccentric position on the near side of the arena, In addition, since a rotation shaft for rotatably supporting the movable roof is provided at this eccentric position, the aperture ratio for the arena can be increased.

In addition, since the movable roof is supported by guide rails laid at the bottom in the shape of a horizontal flat roof, the direction of rotation of the movable roof is horizontal, which greatly increases the movable power capacity compared to the vertical opening type. There is an advantage that it can be made smaller and at the same time, the braking mechanism does not need to have a very strong braking force.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an arena equipped with a retractable roof according to the present invention, Fig. 2 is a plan view of the retractable roof with the movable roof open, and Fig. 3 is a side view of Fig. 1. be. 1...Outside wall 2...Flat roof

Claims (1)

[Claims] In the retractable roof of the arena, there is a flat roof extending slightly horizontally from the upper edge of the peripheral wall toward the center, and a hemispherical shape rising above the flat roof, the open edge of which reaches an eccentric position on the near side of the arena. a fixed roof, and furthermore, the guide is placed on the open edge side of the fixed roof, the top of the hemispherical movable roof is pivotally supported with the eccentric position of the arena as the rotation axis, and on the other hand, the guide is laid on the flat roof. A retractable roof characterized in that the bottom of the movable roof is supported by a rail, and the movable roof is repeatedly rotated toward the fixed roof.