JPH0796813B2 - Retractable roof - Google Patents

Description

The present invention relates to a retractable roof, and in particular, the retractable roof effective when applied to a building that constitutes a large space such as a stadium or an event venue. It is about.

[Conventional technology]

The retractable roof can meet the contradictory requirements of being able to obtain the outdoor feeling of openness, sunlight, fresh air, etc., and eliminate the adverse effects of rainy weather, and already provided or proposed various configurations. Has been done.

Examples of the openable and closable roof include a roof that is simply moved horizontally to be removed from the upper part of the roof erection target, or a roof that has a membrane structure so that the roof can be folded, and the roof can be folded. We have already proposed or provided the one that releases the upper part of the roof erection, or the one that erections and retreats the roof to the erection target by rotating a plurality of fan-shaped divided roof bodies around the central axis. Has been done.

[Problems to be Solved by the Invention] By the way, among the conventional openable roofs described above, in the one in which the fan-shaped split roof body is pivotally moved around the central axis, the rotary shaft is provided only at one location. Since it is a uniaxial type, the following inconveniences have occurred.

That is, since the central portions of the plurality of split roof bodies are all concentrated on one rotary shaft, the structure of the rotary shaft portion becomes complicated, and the load on the central portion of all the split roof bodies is increased in terms of load. Since one rotating shaft must be used, it is necessary to set its design strength high. Further, in the case of the one-axis configuration, when the opening / closing portion (opening / closing angle) of the roof is made large in order to form a large space, in terms of its form,
The rotating shaft is located at the center of the roof construction site, and there is a drawback that the large space cannot be effectively used.

The present invention has been made in view of the above circumstances, in a so-called rotary type openable roof, it is possible to create a large space by widening the openable part by increasing the number of divided roof bodies,
Moreover, it is an object of the present invention to provide an openable roof that can realize it without burdening the rotating shaft and complicating the structure.

[Means for Solving the Problems]

The openable roof according to the present invention is a roof unit in which a plurality of split roof bodies formed in a fan shape having substantially the same shape are configured to be rotatable and superimposable with each other with a central portion of the fan shape as a common rotation center. At least two units are adjacent to each other, and the roof units are arranged such that the center of rotation of one roof unit is located close to the arc end of another roof unit adjacent to the one roof unit, and The roof unit is arranged so that the center of rotation of the roof unit is located close to the arc end of the one roof unit.

[Action]

In the openable roof, a large space can be configured by a plurality of roof units. At this time, since each roof unit has an independent rotating shaft, it is possible to reduce the burden load by reducing the number of divided roof bodies that one rotating shaft takes.

Further, according to the above configuration, the rotating shaft, that is, the column portion is not located in the central portion of the overall shape, and the space can be effectively used.

〔Example〕

Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1 to 3.

FIG. 1 is a plan view showing a retractable roof according to the present invention.
The openable roof 1 includes a first roof unit 10 which is configured to be rotatable about a first rotating shaft 11 and a second rotating shaft.
A second roof unit configured to be rotatable around 21
It consists of 20 and.

The first roof unit 10 is composed of a plurality of fan-shaped divided roof bodies 12 that are horizontally rotatable about the first rotation shaft 11 as a common rotation shaft.

Here, the first rotary shaft 11 is a first rotary shaft 11 formed at an end portion of a second structure 24 that constitutes a second roof unit 20 described later.
It is provided on the upper part of the rotating shaft support structure 13.

In this case, the number of the divided roof bodies 12 is three (12a, 12b, 12c), and the central angles of the fans are substantially equal. Outer peripheral portion (outer end portion) formed by forming an arc of these divided roof bodies 12
As shown in FIG. 2, is supported by a first structure 14 which is constructed in an arc shape around the first rotating shaft 11 so as to be movable, that is, slidable or runnable. The first structure 14 also constitutes a wall body, such as a stadium or an event site, to which the main roof 1 is to be erected. The formation range of the first structure 14 is such that the central angle forming the arc thereof is a value obtained by multiplying the central angle of each of the divided roof bodies 12 by approximately four.

In addition, in the embodiment, as shown in FIG. 2, the split roof bodies 12 as a whole extend upward from the central portion to the outer peripheral portion (from the first rotating shaft 11 side to the first structure 14 side). It has a curved shape, and the curvature of curvature of each divided roof body 12a, 12b, 12c, and the first rotating shaft 11
It is possible to overlap each other by slightly changing the distance (radius) from the to the outer peripheral portion.
Then, on the upper end surface of the first structure 14, tracks 15a, 15b, 15c for guiding the respective divided roof bodies 12a, 12b, 12c.
Are formed.

A second rotary shaft support structure 23 is formed at one end of the first structure 14 formed in an arc shape so as to be inscribed in the first structure 14, and the second rotary shaft support structure 23 is formed. Support structure 23
On the top of the second rotary shaft for the second roof unit 20
21 are provided. Here, the second rotary shaft support structure 23 is constructed one step lower than the first structure 14.

The second rotary shaft 21 is provided with two divided roof bodies 22 having substantially the same shape as the divided roof body 12, two in this case, which are horizontally rotatable. A second structure body 24 is constructed in an arc shape around the second rotation shaft 11 in a portion located on the outer peripheral portion of the two divided roof bodies 22a and 22b. This second structure 24
Is formed in a range such that the central angle forming the arc is a value obtained by multiplying the central angle of the split roof body 22 by approximately three, and
The height of the second rotary shaft support structure 23 is substantially the same as that of the second rotary shaft support structure 23, that is, one step lower than that of the first structure 14. Tracks 25a, 25b for guiding the outer peripheral portions of the two divided roof bodies 22a, 22b are formed on the upper end surface of the second structure 22.

In addition, the divided roof body 22 that constitutes the second roof unit 20
The a and 22b are also curved upward from the central portion to the outer peripheral portion thereof and can overlap each other.

Then, as described above, the first support structure 13 that supports the first rotating shaft 21 is circumscribed and formed at one end of the second structure 24. There is. However,
As shown in FIG. 2, the first rotary shaft support structure 13 has substantially the same height as the first structure 14 and is one step higher than the second structure 24. It has been formed. The second structure 24, like the first structure 14, also constitutes a wall body, such as a stadium, on which the openable roof 1 is erected.

Next, the operation of the openable roof 1 configured as described above will be described.

FIG. 1 shows the closed state of the main opening / closing roof 1, and FIG. 3 shows the open state of the main opening / closing roof 1.

In the state shown in FIG. 1, all five split roof bodies 12a, 12b, 12
The c, 22a, and 22b are adjacent to each other and cover the upper portion of the roof body erection target portion A.

In order to change the state of FIG. 1 to the state of FIG. 3, the three divided roof bodies 12a, 12b, 12c that form the first roof unit 10 are
By rotating and moving all around the first rotating shaft 11 in the direction of the arrow in the drawing, all of them are retreated to one end of the first structure 14, while the two roof units 20 constituting the second roof unit 20 are moved. The divided roof bodies 22a and 22b are rotationally moved in the direction of the arrow in the drawing around the second rotation shaft 21, and the second structure 24
You can move it to one end of.

3 split roof bodies 12 and 2 split roof bodies 22
Since they are configured to overlap each other, the split roof body 12 and the split roof body 22 are
Are stored in an overlapping state at the end of the first structure 14 and the end of the second structure 24, respectively. As a result, the upper part of the roof erection target area A is released.

In order to change the roof from the state shown in FIG. 3 to the state shown in FIG. 1, that is, from the open state to the closed state, the above operation may be reversed.

According to the openable roof 1, the roof can be freely erected / removed with respect to the roof erection target area A, of course, but the rotary shafts for a plurality of (five in this case) divided roof bodies are
Since it is a two-shaft type provided at two positions of the first rotary shaft 11 and the second rotary shaft 21, it acts on the rotary shaft while providing a large number of split roof bodies to secure the area of the entire roof. The load to be applied can be reduced, and accordingly, the design strength of the rotary shaft itself or the rotary shaft support structure can be reduced. Further, since the number of divided roof bodies corresponding to one rotation axis can be reduced in this way, the mounting structure of each divided roof body on the rotation axis can be simplified.

Further, since the rotary shaft and the rotary shaft support structure supporting the rotary shaft are not located in the central portion of the roof erection target area A like a single-axis rotary open / close type roof, the layout effectively utilizes a large space. It also has the advantage that

FIGS. 4 and 5 show a second embodiment of the present invention. The retractable roof 1'in this embodiment is the same as the retractable roof 1 shown in the first embodiment, except that the second roof unit is used. 20
In addition to the divided roof body 22c, the third roof unit 30 is further provided adjacent to the second roof unit 20. In this embodiment, the same components as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

At the one end of the second structure 24 opposite to the end where the first rotary shaft support structure 13 is formed, the third structure is inscribed in the second structure 24. Rotating shaft support structure
33 is formed, and the third rotating shaft 31 is provided on the upper portion of the third rotating shaft support structure 33. The third rotary shaft support structure 33 is set one step lower than the second structure 24. The third rotating shaft support structure
33, fan-shaped split roof bodies 32 (32a, 32b, 32c) are horizontally rotatably provided, and the outer peripheral portions of these split roof bodies 32 are arc-shaped with the third rotating shaft 31 as the center. Are movably supported on tracks 35a, 35b, 35c formed in the upper portion of the third structure 34 constructed in FIG. The formation range of the third structure 34 is such that the central angle is a value obtained by multiplying the central angle of each split roof 32 by four, and one end of the third structure 34 is It is formed close to the second rotary shaft support structure 23. Also, each split roof body
32 (32a, 32b, 32c) is curved upward similarly to the split roof body 12 or the split roof body 22, and is configured to be superposed.

The other structure is the same as that of the first embodiment.

FIG. 5 shows the open state of the openable roof 1'according to this embodiment.

In the openable roof 1'of the present embodiment, since the rotary shaft is a three-axis type having three rotary shafts, the number of split roof bodies can be increased without increasing the load on the two rotary shafts 11 and 12. As a result, a larger space than that of the first embodiment can be constructed.

In the first or second embodiment, the second roof unit 20 is smaller than the first roof unit 10 and the third roof unit 30 is smaller than the second roof unit 20 as a whole. However, this is done by providing an overall dimensional difference between the divided roof bodies that form each roof unit, thereby forming each unit and forming the divided roof bodies located at the ends (the divided roof bodies 12a and 12a). This is because the split roof body 22a, or the split roof body 22c and the split roof body 32a) are slightly wrapped when they are closed, so that a reliable rain end can be secured.

However, it is also possible to form all of these roof units in the same size (radius). To this end, for example, each roof unit is configured at the same level without providing the steps as shown in FIG. 2, and at the tip of the divided roof body located at the end, that is, at the portion that interferes with the mating rotary shaft,
A relief (notch etc.) is provided to avoid the interference.
It can be realized by taking such means.

Further, in the embodiment, the description has been given of the three-axis type, that is, the one having the roof unit up to three units.
It goes without saying that the fourth and fifth roof units can be provided in the same manner.

〔The invention's effect〕

As described above, according to the retractable roof of the present invention, it is needless to say that the roof can be freely erected / removed with respect to the roof erection target site, but a plurality of rotary shafts for a plurality of divided roof bodies are provided. Since it is a multi-axis type installed at the location, it is possible to reduce the load acting on the rotating shaft while providing a large number of split roof bodies to secure the area of the entire roof, and the accompanying rotating shaft itself or The design strength of the rotary shaft support structure can be reduced, the number of split roof bodies corresponding to one rotary shaft can be reduced, and the mounting structure of each split roof body on the rotary shaft can be simplified. In addition to this, since the rotary shaft and the rotary shaft supporting structure supporting the rotary shaft are not located in the central portion of the roof erection target like a single-axis rotary open / close roof, the large space is effectively utilized. Layout can be created , Excellent effects and the like.

[Brief description of drawings]

1 to 3 show a first embodiment of the present invention. FIG. 1 is a plan view showing a closed state of a retractable roof, FIG. 2 is a view taken along the line I--I in FIG. FIG. 3 is a plan view showing the open state of the retractable roof, FIGS. 4 and 5 show a second embodiment of the present invention, and FIG. 4 is a plan view showing the closed state of the retractable roof. FIG. 5 is a plan view showing an open state of the retractable roof. A: Roof construction site, 10: First roof unit, 11 ...
… The first axis of rotation (center of rotation), 12 (12a, 12b, 12c) ……
Split roof body, 20 …… Second roof unit, 21 …… Second rotary shaft (rotation center), 22 (22a, 22b) …… Split roof body, 30
...... Third roof unit, 31 …… Third rotation axis (rotation center), 32 (32a, 32b, 32c) …… Split roof body.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshi Imakubo 4-6-22 Kannon Shinmachi, Nishi-ku, Hiroshima City, Hiroshima Prefecture Mitsubishi Heavy Industries, Ltd. Hiroshima Works (56) Reference JP 62-242037 (JP, A) ) JP-A-63-280136 (JP, A) Actually developed 63-19613 (JP, U)

Claims (1)

[Claims] 1. At least two roof units in which a plurality of divided roof bodies formed into fan shapes having substantially the same shape are configured so as to be rotatable and superimposable on each other with a central portion of the fan shapes as a common rotation center. Be adjacent,
Moreover, in these roof units, the rotation center of the one roof unit is located close to the arc edge of the other roof unit adjacent to the one roof unit, and the rotation center of the other roof unit is the above-mentioned one. A retractable roof characterized in that it is arranged so as to be located close to the arc edge of the roof unit.