JPH0788693B2 - Retractable roof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial field of application" The present invention provides a roof body obtained by removing a part of a shade into a fan shape to form an outer roof body and an inner roof body doubly, and The present invention relates to a retractable roof in which the roof can be opened and closed by relatively rotating the roof and the inner roof.

"Conventional technology" For example, outdoors such as sports and events, which are exposed to warm sunshine under mild climates such as spring and autumn,
It's very pleasant and refreshing to see while being breezy and breeze. On the contrary, everyone will have the experience of being disappointed or tired of seeing in rainy weather or in hot summer weather. On the other hand, it had a roof (covered)
The space has the advantage that you do not have to worry about the weather (especially rain), but it has the drawback of lacking a feeling of openness. In this way, the space where the upper part is completely open and the covered space are However, they have opposite advantages and disadvantages.

In order to deal with these situations, the present applicants create two situations of the above-mentioned contradictory nature, that is, an outdoor situation and a covered situation, in the same space, and utilize only the advantages of both by arbitrarily performing them. We proposed and applied for a movable roof, a "movable roof" (Japanese Patent Application No. 61-81858).
This is as shown in FIG. 6 and FIG. 7, and at least two roof units 8 formed in a fan shape are pivotally moved by using the pillar 6 which is the center of the fan shape as a fulcrum, so that the roof installation target 3 is a movable roof in which the roof can be erected and retreated freely, and the roof units 8 share the same center of rotation, and the vicinity of a fan-shaped arc formed by the roof units 8 and the center of rotation. In the vicinity of
A first support leg 9 and a second support leg 11 that respectively support the roof unit 8 are provided, and further, the first and second support legs 9 and 11 are provided.
The supporting legs 9 and 11 for supporting are provided with slide mechanisms that move along the tracks 22 and 25, respectively.

[Problems to be Solved by the Invention] By the way, the movable roof has an excellent effect that the roof can be erected on the roof erection target and the roof erection can be arbitrarily and easily withdrawn. . However, in the above, i) the pillar 6 exists at the center of rotation of the roof unit 8, and this becomes a large constraint in designing the roof installation object 3 on which this roof is installed. Ii) The roof unit 8 and the side wall of the roof unit 8 may surround or retreat the roof installation object 3 by providing the roof unit 8 with a movable wall body or the like. There were some points to be improved, such as possible, but high cost.

"Means for Solving Problems" The retractable roof according to the present invention has an integral structure in which a part of the shade is removed in a fan shape and an outer roof body in which a part of the shade is removed in a fan shape. The inner roof body is double formed, and the relative rotation of the outer roof body and the inner roof body causes the fan-shaped removing portions formed on both roof bodies to be overlapped or closed to form an upper portion of the roof erection object. An openable / closable roof for closing or releasing, wherein both the outer roof body and the inner roof body are independently supported at their outer peripheral portions, and at least one of both roof bodies has a slide mechanism at the outer peripheral portion. It is characterized by having.

[Operation] The upper part of the roof erection can be blocked and released freely and easily, and it is possible to cope with the weather.

[Examples] Hereinafter, examples of the present invention will be described with reference to the drawings.
1 to 4 show the present invention applied to an event venue for various events.

What is indicated by reference numeral 1 in the figure is an event venue. The event venue 1 has a circular shape as a whole, and is composed of a ground 2, a spectator seat 4 formed in a mortar shape so as to surround the ground 2 in a circular shape, and a stage 4b and a dressing room 4c. . The seat 4
The gradually increasing outer peripheral portion is formed so as to be higher than the surrounding ground surface, whereby the event venue 1 forms an outer wall 4a around it. By the way, the seat 4 has an outer diameter of about 100 m. The area around the event plaza 1 is a plaza 5 with stones or tiles.

At the upper part of the event site 1, there is provided an openable and closable roof 14 having a double structure including an outer roof body 12 and an inner roof body 13.

The outer roof body 12 has a form in which a shade is divided into four fan-shaped parts and two opposing fan-shaped parts are removed. That is, the remaining two fan-shaped bodies (outer fan-shaped bodies 12a) form the outer roof body 12. However, the outer fan-shaped body 12a is not exactly one-quarter the size of the shade, and the outer fan-shaped body 12a is slightly larger than the fan-shaped removed portion formed by being fan-shaped. Has been done. In addition, the center points of the two outer fan-shaped bodies 12a constituting the outer roof body 12 facing each other are
It coincides with the center of the ground 2, that is, the center of the event plaza 1. Also the outer roof body 12
Is composed of a truss 15a extending radially like a so-called umbrella bone, and a roof material 16 is constructed on the truss structure. The outer peripheral portion of the outer fan-shaped body 12a which is inclined downward and spreads out in a fan-shape, that is, a fan-shaped arc portion is fixed to a plurality of roof supports 7 provided on the plaza 5 so as to surround the event venue 1 in an arc. Has been done. In addition, in the center part where two fan-shaped bodies 12a are projected, the roof material 16 is constructed by connecting in a circular shape.

Similarly to the outer roof body 12, the inner roof body 13 has a shape in which two opposing fan-shaped bodies formed by dividing the shade into four fan-shaped bodies are removed, and the outer roof body as a whole is formed. body
It is formed smaller than 12 and is provided coaxially with the outer roof body 12 so as to overlap with the inner side of the outer roof body 12. However, the central angle of the inner roof body 13a constituting the inner roof body 13 relative to each other is larger than the central angle of the fan-shaped removed portion of the outer roof body 12. Like the outer roof body 12, the inner roof body 13 is also constructed by applying a roof material 16 on the upper part of the structure constituted by the transformer 15b. However, with regard to this inner roof body 13a, two fan-shaped bodies 13a have protrusions at their vertices, and the outer peripheral portion has a track 17a.
Two fan-shaped bodies 13a, which are supported by (described later)
In order to maintain the stable structure, the fan-shaped bodies 13a are connected and reinforced by a support member (not shown).

By the way, in the present embodiment, the truss 15b which constitutes the inner roof body 13 and the truss 15a which constitutes the outer roof body 12
, Their upper chords are formed in a straight line, so that the inner roof body 13 and the outer roof body 12 present a part of a so-called conical body as schematically shown in FIG. It is shaped.

An outer peripheral portion of the inner fan-shaped body 13a constituting the inner roof body 13, that is, an arc portion extends to an outer peripheral portion of the bleaching seat 4, that is, an upper portion of the wall 4a. The upper part of the outer peripheral portion of the bleaching seat 4 is formed into a flat surface, and the track 17 is formed there over the entire circumference of the bleaching seat 4. In the present embodiment, the track 17 is formed by laying two rails 19 in a circular arc inside the groove 18 as shown in FIG. Also, the inner fan shape
A drive device 21 is provided via a leg portion 20 on the outer peripheral portion forming the arc of 13a. The drive device 21 includes wheels 22 that engage with the rails 19 to roll, and in the present embodiment, the slide mechanism 10 is configured by the legs 20, the drive device 21, and the track 17. As a result, the inner roof body 13
Is rotatable about a center point where the two inner fan-shaped bodies 13a are projected. The slide mechanism 10 is not limited to the one described above, and for example, the track 17
With only the groove 18 without providing the rail 19, and instead of the wheel 22, a tire is provided as a driving wheel.
The tire may be configured so that it can be rolled by being guided by the groove 18. A spectator can enter the plaza 1 through the outer peripheral wall 4a under the slide mechanism 10.

Next, the operation of the retractable roof 14 having such a configuration will be described.

The fan-shaped removed portion formed between two opposing fan-shaped bodies 13a of the inner roof body 13 and the fan-shaped removed portion similarly formed on the outer roof body 12 are in the same position and in a state of being overlapped with each other. In this case, the roof 14 has an opening and is in a released state. That is, the people in the event plaza 1 can enjoy the sunlight and the breeze from the open space. At this time, the two inner fan-shaped bodies 13a forming the inner roof body 13 are in a state of being housed so as to overlap each other inside the outer fan-shaped bodies 12a forming the outer roof body 12. Moreover, since the inner fan-shaped body 13a is smaller than the outer fan-shaped body 12a, the inner fan-shaped body 13a does not protrude from the outer fan-shaped body 12a in this state.

On the other hand, when the roof 14 is closed, the wheels 22 may be driven by the drive mechanism 21 provided on the outer peripheral portion of the inner roof body 13. Wheels 22 roll on rails 19, and inner roof body 13 rotates. This rotation movement is performed until the fan-shaped removed portion of the outer roof body 12 is completely closed by the inner roof body 13. As a result, the roof 14 is closed and the upper part of the event square 1 is completely closed. That is,
The event space 1 will be protected from the rain and wind, and even in bad weather, the event participants and spectators can fully enjoy the event.

In the openable roof 14 configured in this way, the roof 14 can be opened and closed by rotating the inner roof body 13, and the upper part of the event plaza 1 can be opened and closed completely freely and easily. The correspondence of will be at will. Further, by making the entire roof 14 into a shade shape (conical shape) and supporting the outer peripheral portion thereof, it is not necessary to provide a pillar at the center, and the entire lower portion of the roof can be effectively used. Moreover, if the roof is formed in a shade like this, the retractable roof 14 acts not only as a roof for covering the upper part of the roof erection target (the event square 1 in the embodiment) but also as a wall surrounding the side surface. When the roof is in the closed state, the target of opening and closing the roof can be almost the same as indoors. Further, the roof as a movable body that can be moved is thus formed into a circular shape or a shape forming a part of the circular body, and the center of rotation thereof is rotationally moved in conformity with the geometric center thereof. The movement is well-balanced and extremely smooth, and does not require a large driving force.

In the present embodiment, the roof 14 has a relatively short conical shape, but it may have a pointed conical shape, as schematically shown in FIG. 4, for example. It is easily possible. Of course, in consideration of the balance with the roof erection target, as shown in the examples, the city should be of a type with a short and wide skirt, and the suburbs should be of a spire type. You can choose the format. Furthermore, the inside of the inner roof body 13 is finished with a light-transmissive material, and when the roof 14 is released, the event space 1 becomes even brighter during the daytime, and at night the proof light of the interior is radiated (reflected) to the outside for vitality. It can be expected to appeal to the surroundings of an event.

Further, in the present embodiment, the outer roof body 12 and the inner roof body 13 are each composed of two fan-shaped bodies 12a, 13a, but the number of fan-shaped bodies 12a, 13a constituting the roof bodies 12, 13 is the same. However, the present invention is not limited to this example, and the number of fan-shaped bodies 12a and 13a may be three or four, for example. However, in this case, all the fan-shaped bodies are arranged at equal intervals, and especially in the outer fan-shaped body 12a, the total area of the plurality of fan-shaped bodies is at least half or more of the area of the original shade. To be By doing so, the inner roof body 13 overlapping the outer roof body 12 does not protrude from the outer roof body 12 when the roof is open.

Further, in this embodiment, the inner roof body 13 is rotatable, but the inner roof body 13 is fixed, the track 17 is formed on the plaza 5, and the outer roof body 12 is rotatable. It can also be one. Of course, both may be possible, and in such a case, the roof opening is moved according to the movement of the sun so that the shadow of the roof does not cover the roof construction object as much as possible. Will also be possible.

Furthermore, in the trusses 15a and 15b that form the outer roof body 12 and the inner roof body 13, a PC steel wire is attached to the lower chord member that constitutes the trusses 15a and 15b, and prestress is introduced into the lower chord member by tensioning the steel wire. It may be used as a tamono (Japanese Patent Application No. 60-175997).

In this case, it is possible not only to reduce the bending of the trusses 15a and 15b, but also to bear a part of the tensile load applied to the lower chord member by the introduced plastic stress. The weight of the roof bodies 12 and 13 is reduced. As a result, it is possible to make the roof bodies 12, 13 particularly long and large. In addition, the roof body having such a configuration is extremely effective in reducing the load applied to the drive device as a movable body as much as possible.

[Advantages of the Invention] As described above, the retractable roof according to the present invention has an integral structure in which a part of the shade is removed in a fan shape and an integral structure in which a part of the shade is removed in a fan shape. The inner roof body is double formed, and the relative rotation of the outer roof body and the inner roof body causes the fan-shaped removing portions formed on both roof bodies to be overlapped or closed to form an upper portion of the roof erection object. An openable / closable roof for closing or releasing, wherein both the outer roof body and the inner roof body are independently supported at their outer peripheral portions, and at least one of both roof bodies has a slide mechanism at the outer peripheral portion. Since it is characterized by the fact that it is provided, the upper part of the roof construction target can be released and blocked completely freely and easily, and the weather response can be controlled at will. Further, since the entire roof is formed into a shade shape and the outer peripheral portion is supported, it is not necessary to provide a pillar at the center, and the lower part of the roof, that is, the roof erection target can be used effectively in its entirety. Moreover, by forming the roof in this way, this retractable roof acts not only as a roof for the roof erection object but also as a so-called side wall, and when the roof is closed, It is possible to make the target of roof opening and closing almost the same as the interior. Furthermore, the roof as a movable body that can be moved is formed into a shape that constitutes a part of a circular body in this way, and by means of rotational movement with its geometric center as the center of rotation, the movement is well-balanced and extremely smooth. It does not require a large driving force. In addition, both the outer roof body and the inner roof body have a unitary structure in which a part of the shade shape is removed in a fan shape, and thus are structurally stable. Further, since the outer roof body and the inner roof body have the above structure, the slide mechanism may be provided only on at least one outer peripheral portion of the roof body, that is, the lower portion. There is no need to climb to the top of the roof, which facilitates the work. Furthermore, since the outer roof body and the inner roof body are both independently supported at their outer peripheral portions, the members necessary for supporting one of the outer roof body and the other roof are unnecessary, and the number of members can be reduced.

[Brief description of drawings]

FIGS. 1 to 4 show an embodiment of the present invention. FIG. 1 is a plan view showing the retractable roof of the present invention together with a roof erection object, FIG. 2 is a partial sectional side view of the same, and FIG. FIG. 4 is a perspective view schematically showing the shape of the retractable roof of the present invention, and FIG. 4 is a sectional view of a slide mechanism. FIG. 5 is a perspective view schematically showing a modified example of the retractable roof of the present invention. 6 and 7 show the "movable roof" of the prior application. Fig. 6 is a side sectional view and Fig. 7 is a plan view. 1 ... event plaza, 4 ... standers, 4a ... outer wall, 5 ...
… Plaza, 7… Roof support, 12… Outer roof, 12a…
… Outer fan shape, 13 …… Inner roof shape, 13a …… Inner fan shape, 14…
… Opening and closing roof.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kasuo Kuno 2-16-1, Kyobashi, Chuo-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor Takeki Kumagai 2-16-1, Kyobashi, Chuo-ku, Tokyo Shimizu Construction Co., Ltd. (56) Reference JP-A-58-164845 (JP, A)

Claims (1)

[Claims] 1. An outer roof double-formed by an integral structure outer roof body in which a part of the shade is removed in a fan shape and an integral inner roof body in which a part of the shade is removed in a fan shape. An openable roof for closing or releasing the roof installation target upper part by superposing or closing the fan-shaped removing portions respectively formed on the roof body and the inner roof body by relative rotation of the outer roof and the outer roof. Both the body and the inner roof body are independently supported at their outer peripheral portions, and at least one of these roof bodies is provided with a slide mechanism at the outer peripheral portion thereof.