JPH07331789A - Opening and shutting type roof structure - Google Patents

Abstract

PURPOSE:To reduce influence by wind and to increase an opening area at the time of opening a roof by smoothly burying a step difference part between respective semicircular roofs devised so that one semicircular roof creeps to the lower side of the other semicircular roof. CONSTITUTION:A fixed roof 12 and a movable roof 14 are formed semicircular to respectively divide a dome type roof into two. An outer peripheral diameter D2 of the movable roof 14 is formed slightly smaller than an inner peripheral diameter D1 of the fixed roof 12, and the movable roof 14 rotates and creeps to the lower side of the fixed roof 12 at the time of opening the dome type roof. A step difference part is formed by dropping a divided side end part of the movable roof 14 by one step from a divided side end part of the fixed roof 12. A movable eaves 20 is stored on a divided side end part 12a of the fixed roof 12 free to come in and out. The movable eaves 20 is surrounded by a plate material in a pedestal shape and constituted so that its head end part becomes gradually thinner toward the upper side of the lower side roof 14, and the step difference part is smoothly buried in the protruded state of the movable eaves 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention divides a circular dome-shaped roof into two parts, one is a fixed roof and the other is a movable roof, and the center of the circular dome top is designed to allow the movable roof to go under the fixed roof. The present invention relates to a retractable roof structure in which the roof portion can be opened and closed by rotating as.

[0002]

2. Description of the Related Art A retractable roof structure of this type is used for a dome-shaped roof in a large stadium, for example, Japanese Patent Laid-Open No. 1-268.
No. 936 (E04B 1/32) or JP-A-2-
No. 210130 (E04B 1/32) and the like. That is, in the openable roof structure shown in these, the semicircular roof divided into two is designed to move on the track laid along the outer circumference of the dome, and each semicircular roof is designed to move the top of the dome. The dome-shaped roof is opened and closed by rotating around the center and allowing the other semi-circular roof to go under the one semi-circular roof.

[0003]

However, in such a conventional retractable roof structure, when the dome-shaped roof is opened, the other semi-circular roof is sunk under the other semi-circular roof. ing. Therefore, it is necessary to make the curved radius of the lower semi-circular roof smaller than that of the upper semi-circular roof, and a step is formed between the respective semi-circular roofs. For this reason, when the wind is strong, the airflow is disturbed at the step portion, and a large wind noise is generated, which causes noise.

Further, when a wind pressure acts on the step portion, a large force acts, so that it is necessary to increase the roof strength accordingly. For this reason, there is a problem that the weight of the roof is increased because the reinforcement material and the constituent members of the roof must be thickened.

Therefore, in view of the conventional problems, the present invention has a step formed between the respective semi-circular roofs in which the other semi-circular roof is embedded under the one semi-circular roof. An object of the present invention is to provide a retractable roof structure capable of smoothly filling a portion to reduce the influence of wind and increasing the opening area when the roof is opened.

[0006]

In order to achieve the above object, the present invention divides a circular dome-shaped roof into two semi-circular roofs, one of these semi-circular roofs being an upper roof and the other being a semi-circular roof. Along with the lower roof, the curved surface of the lower roof is formed to have a smaller diameter than the upper roof to form a step between the upper and lower roofs. When the roof is released, the lower roof is rotated around the circular dome top. In the open-closed roof structure that is designed to open and close between the upper roof and the lower roof by making it sneak into the lower side of the upper roof, at the divided side end of the upper roof,
A movable eave whose tip portion gradually becomes thinner toward the upper side of the lower roof is housed so as to be retractable, and the movable eave is projected in the closed state of the roof and is also retracted in the open state. Further, it is desirable to attach a flexible closing body that fills a gap between the movable roof and the upper side of the lower roof to the lower side of the tip of the movable canopy.

[0007]

In the openable roof structure of the present invention having the above structure, the step formed between the upper roof and the lower roof in the projecting state of the movable eaves housed at the split side end of the upper roof. The part can be filled smoothly. Therefore, the wind acting on the step portion smoothly flows without causing airflow turbulence due to the movable eaves, so that the wind noise is prevented from being generated at the step portion at the time of strong wind, and a large wind pressure acts on the step portion. To reduce the roof strength,
As a result, the weight of the roof can be reduced. Further, since the movable eaves are projected in the closed state of the roof and are retracted in the opened state, the movable eaves are not projected in the opened state of the roof, so that the opening area can be greatly increased.

Further, a flexible closing member for filling a gap between the roof and the upper side of the lower roof is attached to the lower end of the movable eaves to enhance water tightness when the roof is closed so that rainwater can enter. Can be prevented.

[0009]

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. 1 to 3 show an embodiment of a retractable roof structure according to the present invention, FIG. 1 is an enlarged cross-sectional view of a main part showing an end portion on a split side between an upper roof and a lower roof, and FIG. 2 is an entire roof structure. And FIG. 3 is a front view of the same.

That is, in the retractable roof structure of the present embodiment, as shown in FIGS. 2 and 3, the upper side of the annular wall body 10 surrounding the outer circumference in a circular shape is fixed to the fixed roof 12 and the upper roof. It is configured by covering the movable roof 14 as a lower roof in a dome shape. The fixed roof 12 and the movable roof 14 are each formed in a semicircular shape obtained by dividing a circular dome-shaped roof into two parts. The outer peripheral portion of the fixed roof 12 is fixed to the upper end of the annular wall body 10, and The outer peripheral portion of the annular wall 10 can be moved relative to the annular wall 10. That is, a plurality of power carriages (not shown) are attached in the circumferential direction below the outer peripheral portion of the movable roof 14, and the movable roof 14 can rotate around the center O of the annular wall body 10 by driving these power carriages. It has become.

The fixed roof 12 and the movable roof 14
Is formed as a curved surface, and the outer diameter D2 of the movable roof 14 is slightly smaller than the inner diameter D1 of the fixed roof 12. Then, when the roof is opened, the movable roof 14 rotates so as to sneak under the fixed roof 12. in this way,
Since the fixed roof 12 and the movable roof 14 have different diameters, a step portion 16 is formed between the movable roof 14 and the fixed roof 12.

Here, in this embodiment, the movable eaves 20 is housed in the divided side end 12a of the fixed roof 12 so as to be retractable.
The fixed roof 12 includes an inner plate 12b and an outer plate 12c which are arranged at appropriate intervals, and the movable eaves 20 is fitted between the inner plate 12b and the outer plate 12c. As shown in FIG. 1, the movable eaves 20 is surrounded by a plate material in a trapezoidal shape, and its tip is gradually thinned toward the upper side of the lower roof 14. And the fixed roof 20
A rail 22 is provided on the upper surface of the inner plate 12b in the direction in which the movable eaves 20 appear and disappear, and on the lower surface of the outer plate 12c in parallel with the rail 22, a hanger type rail 24 is provided in a portion where the movable eaves 20 is fitted. Is provided. The movable eaves 20 is mounted on the rail 22 and the hanger rail 24 by the roller 2
It is movably attached via 6, 26, ....

The movable canopy 20 can be retracted and retracted via a drive mechanism 28. The drive mechanism 28 has one end rotatably pivotally attached to the upper surface of the inner plate 12b and the other end attached to the rear end portion (right end portion in FIG. 1) of the movable eave 20 so as to be vertically movable. 32 and a hydraulic cylinder 34, one end of which is rotatably pivoted to the lower surface of the outer plate 12c, and the other end of which is rotatably attached to the arm 32. Then, as the hydraulic cylinder 34 expands and contracts, the arm 32 rotates about the one end pivot point, and with the rotation of the arm 32, the movable eaves 20 moves between the solid line and the broken line in FIG. To move.

In the retractable roof structure of the present embodiment having the above-described structure, first, the hydraulic cylinder 34 of the drive mechanism 28 is extended with the movable roof 14 closed to move the movable eaves 2.
0 is set in a protruding state as shown by the solid line in FIG.
In this state, the movable eaves 20 covers the upper side of the split side end 14a of the movable roof 14, and the tip of the movable eaves 20 gradually becomes thinner toward the upper side of the movable roof 14. Therefore, the split side end 12a of the fixed roof 12 and the movable roof 14
The step portion 16 formed between the movable eaves 20 and the upper side of the
As it is smoothly filled by the wind,
Therefore, the flow of the airflow can be prevented smoothly from occurring in the step portion 18. Therefore, the stepped portion 1 is
It is possible to remarkably reduce the generation of wind noise at 8 and significantly improve the quietness inside the dome. Further, since strong wind can act on the stepped portion 18 by the eaves 20, the wind pressure at this time can be reduced from acting on the split side end 12a of the fixed roof 12, and by extension, It is possible to prevent the strength of the fixed roof 12 from being excessively increased and reduce the weight of the fixed roof 12.

Furthermore, when the movable eaves 20 is in the protruding state, the stepped portion 18 can be filled with the movable eaves 20 to make the entire dome-shaped roof into a smooth curved line, so that the appearance of the entire roof is also improved. be able to.

On the other hand, the movable roof 14 is closed from 0
When the arm 32 is rotated about the center and is opened, the hydraulic cylinder 34 of the drive mechanism 28 is shortened and the arm 32 is pulled up around the one end pivot point, so that the other end of the arm 32 moves to the rear of the movable eaves 20. While moving the end portion upward, the movable eaves 20 is immersed inside the fixed roof 12 and between the outer side plates 12b and 12c. Since the movable eaves 20 is not projected when the roof is open, the opening area of the roof can be increased.

FIG. 4 shows another embodiment, in which the same components as those in the above-mentioned embodiment are designated by the same reference numerals and a duplicate description will be omitted. That is, in this embodiment, a brush 40 as a flexible closing member is planted below the tip of the movable eaves 20 and the brush 40 fills the gap between the movable eaves 20 and the movable roof 14. ing. The brush 40 is densely planted with bristles, and a vertically extending tip of the brush 40 slides on the upper side of the movable roof 14.

In this embodiment, the general outer surface of the movable roof 14 is formed of the non-translucent roofing material 42, and the movable eaves 20 project in the projecting portion of the movable eaves 20. Is formed of a semi-transparent roofing material 44 such as frosted glass.

Therefore, in this embodiment, since the gap between the tip of the movable canopy 20 and the upper side of the movable roof 14 can be filled with the brush 40, the watertightness of the room is improved when the movable roof 14 is closed. As a result, rainwater can be prevented from entering through the gap portion.

Further, in this embodiment, since the portion located inside the protruding portion of the movable eaves 20 is formed of the semi-transparent roofing material 44, the movable eaves 20 is fixed to the fixed roof 12 with the movable roof 14 closed. When immersing in one direction, sunlight hits the semi-translucent roofing material 44 and an arch-shaped slit of light can be drawn on the inner surface of the roof, and the decorative effect can be remarkably improved.

In the present embodiment, the circular dome roof is divided in half, one side is the fixed roof 12 and the other side is the movable roof 14.
The case where the present invention is applied to the above is disclosed, but without being limited to this, the semicircular roofs that are divided in half are both movable, and the other semicircular roof is below the one semicircular roof. The present invention can be applied even to a device that is made to sneak in.

[0022]

As described above, in the retractable roof structure according to the first aspect of the present invention, the movable eaves are retractably housed in the divided side end of the upper roof, and the tip of the movable eaves is retractable. Is gradually thinned toward the upper side of the lower roof to smoothly fill the stepped portion formed between the upper roof and the lower roof. The movable eaves can smoothly flow without causing air flow turbulence. Therefore, it is possible to prevent wind noise from being generated at the step portion at the time of strong wind, and to prevent a large wind pressure from acting on the step portion to achieve reduction in roof strength, and further, to reduce the weight of the roof. be able to. Further, the opening area of the roof can be greatly increased by immersing the movable eaves that can be retracted and retracted in a state where the roof is open.

Further, according to a second aspect of the present invention, the roof is closed by attaching a flexible closing member that fills a gap between the movable roof and the upper side of the lower roof to the lower side of the tip of the movable eaves. In this case, it is possible to improve the watertightness by the movable blocker and prevent rainwater from entering the room.

[Brief description of drawings]

FIG. 1 is an enlarged cross-sectional view of a main part of an end portion on a split side between an upper roof and a lower roof, showing an embodiment of a retractable roof structure according to the present invention.

FIG. 2 is a plan view of the entire roof structure showing an embodiment of the present invention.

FIG. 3 is a front view of the entire roof structure showing an embodiment of the present invention.

FIG. 4 is an enlarged sectional view of an essential part corresponding to FIG. 1, showing another embodiment of the present invention.

[Explanation of symbols]

10 Annular Walls 12 Fixed Roof (Upper Roof) 14 Movable Roof (Lower Roof) 16 Stepped Part 20 Movable Eaves 28 Drive Mechanism 40 Brush (Movable Closure)

Claims (2)

[Claims] 1. A circular dome-shaped roof is divided into two to form two semi-circular roofs, one of these semi-circular roofs being the upper roof and the other being the lower roof, and the curved surface of the lower roof being the upper roof. By forming a smaller step between these upper and lower roofs with a smaller diameter, and rotating the lower roof around the top of the circular dome when the roof is opened to allow it to slip under the upper roof, In a retractable roof structure that opens and closes between a lower roof and a split side end of the upper roof, a movable eave with a tip portion gradually thinning toward the upper side of the lower roof can appear and disappear. Storing it, projecting this movable eaves with the roof closed,
A retractable roof structure characterized by being immersed in the open state. 2. The retractable roof structure according to claim 1, wherein a flexible closing member that fills a gap between the movable roof and the upper side of the lower roof is attached to the lower side of the tip of the movable eaves.