JPS62125174A - Cellular airtight film type opening and closing roof - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a cellular airtight membrane type retractable roof.

(Prior art) Conventionally, when opening and closing a roof, the entire roof was configured to be movable, or the roof was divided into multiple parts in the length direction and each roof member was configured to be movable, and each roof member was moved to one side. Some have a structure in which they are moved and stacked one on top of the other to open the roof.

However, the former requires extra space for a large roof that has been moved, and the latter requires a large roof opening area (to form a large opening area, it is difficult to overlap if the number of divisions is increased and the length of each roof member is shortened). The height when combined is high, the ceiling is low, and the effective usable area of the building is reduced.Also, since both of them move heavy roofs, the moving equipment becomes large and expensive. There were drawbacks such as.

Therefore, for example, the upper opening of a building that is approximately circular in plan view, such as a baseball stadium or a trade fair hall, is covered with a membrane member, and low-pressure pressurized air is supplied inside to inflate the membrane member upward to form a roof.
Those with lighter roofs, and those with membranes covering the top openings of rectangular buildings in plan view, such as arcades in shopping streets, and folding these membranes several times to create larger roof openings. be.

(Problems to be Solved by the Invention) If the roof made of a membrane member is inflated with pressurized air and supported by air pressure as described above, the roof cannot be opened or closed, so the roof cannot be opened or closed during good weather. There was a problem in that the roof could not be opened or folded down to prevent damage during strong winds or snowfall.

In addition, in the case of a retractable roof made of a single membrane member applied to shopping arcades, etc., it is not possible to apply a predetermined tension to the membrane member when the roof is closed, so the membrane member may become wavy. They tend to become uneven (because rainwater accumulates there, making them even more likely to ripple, and sand and dust are also difficult to wash away with rainwater, making them easy to get dirty), resulting in a poor appearance.

Moreover, when this kind of retractable roof with a heavy membrane is applied to a roof with a large span, the membrane member itself has almost no shape-retaining ability, so unless it is restrained with multiple shape-retaining materials, the membrane member will move up and down significantly due to wind pressure. There is a problem that the corrugation and the impact force cause it to break, and the noise caused by the fluttering during the corrugation becomes significant.

(Means for Solving the Problems) The cellular airtight membrane type retractable roof according to the first invention of the present application is a retractable roof that can be freely opened and closed and covers a rectangular area in a plan view, and is arranged in parallel with an appropriate span spaced apart from the left and right. A pair of guide members extending in the front and rear directions are provided, and a roof member is provided in which a plurality of sets of cellular membrane members made of double flexible airtight membranes are connected in series in the front and rear direction over the entire span length. A plurality of shape-retaining support members are provided, each of which is fixed to the joining edge in the left-right direction and whose both ends are guided and supported by the left and right guide members, and the shape-retaining support members other than the shape-retaining support member at the roof folding position are connected to the roof. Along with the member, an opening/closing means is provided which can be moved back and forth along the guide member to open and close the closed state where the roof member is covered and the open state where the roof member is folded to the roof folding position, and the opening/closing means can be moved back and forth along the guide member to open and close the closed state where the roof member is folded to the roof folding position. A pressurized air supply means is provided for supplying pressurized air.

The cellular airtight membrane type retractable roof according to the second invention of the present application is a retractable roof that can be freely opened and closed to cover all or a part of a circular area in a plan view. A roof comprising a central support member provided above the center of curvature, and a plurality of sets of cellular membrane members each consisting of a double flexible airtight membrane having a fan shape in plan view and extending from the central support member to a guide member in a circumferential direction. a plurality of shape-retaining support members secured to the radial joint edges of the cellular membrane member and supported at one end by the central support member and at the other end by the guide member; By moving a plurality of shape-retaining support members other than a certain shape-retaining support member together with the roof member in the circumferential direction along the guide member and the central support member, the closed state covered with the roof member and the folded state of the roof member can be achieved. It is provided with an opening/closing means for opening and closing between the folded and open positions, and a pressurized air supply means for supplying pressurized air into each cellular membrane member.

(Function) In the cellular airtight membrane type retractable roof according to the first invention of the present application, the shape-retaining support member is fixed to the left-right joint edge of the cellular membrane member, and both ends thereof are guided and supported by the left and right guide members. Therefore, when the shape-retaining support member other than the shape-retaining support member at the roof folding position is moved along the guide member in the direction opposite to the roof folding position using the opening/closing means, the shape-retaining support member and the cellular membrane member are moved. The roof member is expanded through the roof member to bring the roof into a closed state, and from this closed state, when the shape-retaining support member is moved along the guide member toward the roof folding position by the opening/closing means, the shape-retaining support member is moved toward the roof folding position. Each cellular membrane member is folded into a folded shape through the support member, and the roof member is compactly folded to the roof folding position, leaving the roof open.

Then, expand the roof members to close the roof,
When pressurized air is supplied into each cellular membrane member by the pressurized air supply means, each cellular membrane member expands due to the air pressure and assumes a predetermined shape restrained by the shape-retaining support member.

When the cellular membrane member is inflated by air pressure, the flexible airtight membrane has a
A predetermined tension is applied to increase the shape-retaining power of the membrane itself, and the rigidity of the entire cellular membrane member also increases, making its shape-retaining power extremely thick.

Since the roof member is restrained and supported by shape-retaining support members at appropriate intervals in the front and rear direction, the roof member remains stable as a whole even against large wind pressure, and the flexible airtight membrane itself of the cellular membrane member also The action of tension makes it stable against wind pressure.

In the cellular airtight membrane type retractable roof according to the second invention of the present application, the shape-retaining support member is fixed to the radial joint edge of the cellular membrane member, and both ends thereof are guided and supported by the guide member and the central support member. Therefore, by moving the shape-retaining support member in the roof folding position in the same direction along the guide member by the opening/closing means, the roof member can be expanded in substantially the same way as the retractable roof of the first invention. The roof can be opened and closed between a closed state and an open state with the roof member folded to the roof folding position.

The operation in the state where pressurized air is supplied into each cellular membrane member of the roof member to inflate it is substantially the same as that of the first invention.

(Effects of the Invention) According to the cellular airtight membrane retractable roof according to the first invention of the present application, as explained above, the shape-retaining supporting force of the shape-retaining support member and the shape-retaining of the cellular membrane member expanded by pressurized air Since the structure effectively utilizes force, the structure of the shape-retaining support member can be simplified and cost reduced, and the roof member can be maintained in the desired shape depending on the shape of the shape-retaining support member. It is possible to construct a roof with excellent drainage performance (exterior appearance when viewed), it is stable against wind and wind pressure, and the structure of the cellular membrane member, shape-retaining support member, and guide member greatly influences the construction of the roof. Effects such as being able to configure a retractable span roof can be obtained.

According to the cellular airtight retractable roof according to the second invention of the present application,
In addition to the effects that are substantially the same as those of the first invention, the following effects can also be obtained.

A roof member is provided in which a plurality of sets of sector-shaped cellular membrane members are connected in the circumferential direction in a plan view, and a shape-retaining support member oriented in the radial direction is fixed to the joint edge of the cellular membrane members, and both the inner and outer ends of the shape-retaining support member are fixed. By guiding and supporting each part on a central support member and a guide member, it is possible to open and close all or part of a circular area in a plan view, which was previously thought to be impossible. It is possible to put a retractable roof into practical use.

Moreover, since the shape-retaining support member may be of hour wheel structure as described above, the manufacturing cost of the retractable roof is also relatively low.

(Example) First, an example of the first invention of the present application will be described based on FIGS. 1 to 5.

The cellular airtight membrane type retractable roof according to this example is shown in Figure 1.
As shown in Figure 2, the upper part of a rectangular building S or structure that is long in the front-rear direction when viewed from above, such as physical education facilities (gymnasiums, pools, tennis courts, etc.), shopping arcades, trade fair venues, and various event venues. It is a retractable roof that covers the opening and can be opened and closed.

As shown in Fig. 1, the roof member R is formed by arranging cellular membrane members l consisting of double flexible airtight membranes over the entire length of the left-right span in series in the front-rear direction. In order to maintain the shape of the roof member R and to open and close it, a joint edge 2 is provided along the left and right direction, which is the front and rear edges of each cellular membrane member 1.
is attached to the shape-retaining support member 3, and both left and right ends of the shape-retaining support member 3 are attached at the same time. It is designed to be guided and supported by guide members 5 at the upper ends of the left and right side walls 4a of the IJs.

The shape-retaining support member 3 is moved along the pair of guide members 5 that are opposed to the left and right and extend back and forth, and the five sets of cellular membrane members 1 are expanded to cover the upper opening with the roof member R. The cellular membrane member 1 is used with pressurized air filled inside it.

In addition, as shown in Figure 2, if necessary during good weather,
The pressurized air inside the cellular membrane member 1 is removed, all the shape-retaining support members 3 are moved to the roof folding position on the front end wall 4b side of the building S, and the five sets of cellular membrane members 1 are folded to open the upper opening. It is now possible to release it.

The above five sets of cellular membrane members 1 are made by joining two flexible airtight membranes 1a stacked one on top of the other over the entire length of the span at appropriate intervals in the front-rear direction, and joining the left and right side edges. Alternatively, it may be formed by manufacturing each cellular membrane member 1 and by overlapping and joining the joint edges 2 of the cellular membrane members 1.

The airtight membrane 1a for the cellular membrane member 1 may be a synthetic resin membrane material with excellent weather resistance, a membrane material made of a woven fabric made of synthetic resin fiber with excellent weather resistance and treated with waterproof airtightness, or A synthetic resin membrane material with excellent weather resistance reinforced with reinforcing fibers such as gasla fibers is used.

In addition, as the flexible airtight membrane of the cellular membrane member 1 used for the roof member R with a large span of 20 m or more, a membrane member reinforced with synthetic resin fiber ropes or wires at appropriate intervals in the front, rear, left, and right directions is used. Sometimes. In the case of a cellular membrane member used for a large span roof member R,
Each cellular membrane member 1 may be divided into a plurality of sections by joints extending back and forth at appropriate intervals in the span direction.

As shown in FIG. 1, FIG. 2, and FIG. 5, the guide member 5 has two upper and lower cross-sections C that are provided alternately along the entire length of the side wall 4a along the upper end of each of the left and right side walls 4a. Shape material 5a/5
These shapes 5a and 5b are the pillars 5 of the building S.
It is fixed at c.

The guide member 5 is for supporting both ends of the shape-retaining support member 3 and guiding it movably in the front-back direction, so that the openings of each of the shapes 5a and 5b are directed toward the inside of the building S. ing.

As shown in FIGS. 1 and 3 to 5, the shape-retaining support member 3 is connected to a joining edge 2 of the front edge of the cellular membrane member 1 on the frontmost side.
, the joint edge 2 of the earthen floor of the cellular membrane member 1, and the joint edge 2 of the rear edge of the cellular membrane member 1 on the rearmost side. While the member 3 is fixed to the front wall 4b of the building S, the other five sets of shape-retaining support members 3 are movable in the front-rear direction along the left and right guide members 5.

Each of the shape-retaining support members 3 includes an upper wire 3a that spans the left and right upper sections 5a, a lower wire 3b that spans the left and right lower sections 5b, and an upper wire 3a that extends at appropriate intervals in the span direction.
and a hanging wire 3c connecting the lower wire 3b, the lower wire 3b is connected to the connecting edge 2 of the cellular membrane component work.
The upper wire 3
The guide ring 7a at the upper end of the spacer rod 6 extending between the ends of the lower wire 3b and the guide ring 7a is freely rotatably mounted in the upper mold member 5a, and the guide ring 7b at the lower end of the spacer rod 6 is attached to the lower mold member 5b. The support ring 7C above the guide ring 7b rolls along the upper surface of the profile 5b.

By applying a certain amount of tension to the upper wire 3a and the lower wire 3b and connecting the upper wire 3a and the lower wire 3b with the suspension wire 3c, the upper wire 3a is shaped like a gentle curve that swells downward, and the lower wire is 3b is formed in a gently curved shape that bulges upward, and by regulating the shape of the joining edge 2 of the cellular n1 member l to the same shape as the lower wire 3b, the cellular when filled with pressurized air The shape of the membrane member 1 can be restrained into a curved shape that swells upward like the lower wire 3b.

This facilitates drainage of rainwater that falls on the cellular membrane member 1 and allows it to be maintained in a shape that is favorable in terms of appearance.

However, it is also possible to have a structure in which the lower wire 3b is disposed below the joint edge 2, and the joint edge 2 is connected to the middle part of the suspension wire 3c.

The reference numeral 8 designates a bent link for regulating the width of each cellular membrane member 1 in the front and back direction when the cellular membrane member 1 is unfolded and filled with pressurized air.
- 10 also serves to restrict the width in the front-rear direction, similar to the bent link 8, and is connected to each upper wire 3a. Note that a wire may be used instead of the bent link 8.

Each of the above-mentioned shape-retaining support members 3 is formed as a structure made of an upper wire 3a, a lower wire 3b, and a plurality of suspension wires 3C, but it may also be made of a synthetic resin rope, or a metal structure. It may be constructed of a structural surface made of pipe material or molded material, or may be constructed of a thick membrane material similar to the flexible airtight membrane 1a.

Although the guide member 5 is constructed of the C-shaped cross-section shaped members 5a and 5b, it may also be constructed of a strongly stretched wire, a metal pipe, a rond, a square member, or the like. In short, the guide member 5 only needs to have a structure that can support the lateral and downward loads acting from the shape-retaining support member 3 and guide the end portion of the shape-retaining support member 3.

The left and right side edges of each of the cellular membrane members 1 are also joined as shown in FIG. 5, and an air chamber is formed therein.

In order to expand the roof member R to supply pressurized air into the cellular membrane member 1 and to discharge pressurized air from within the cellular membrane member 1, the roof member R is constructed as follows.

That is, as shown in FIG. 5, the air chambers in adjacent cellular membrane members 1 are connected to each other through one or more flexible communication pipes 11, and the cellular membrane member 1 on the frontmost side
The air chamber inside is connected to the discharge port of a blower 13 through a supply/exhaust pipe 12 having an on-off valve (path shown).

When the above-mentioned on-off valve is opened and extremely low-pressure pressurized air (for example, 5 to 501 ml (g) is supplied from the blower 13, the air in all the cellular membrane members l is Pressurized air is supplied to the chamber, and the pressurized air can be held by closing the on-off valve.

When removing the pressurized air, the opening/closing valve is opened with the blower 13 stopped, and the pressurized air inside the cellular membrane member 1 is discharged to the outside via the supply/exhaust pipe 12.

In addition, since moisture in the air may condense within each cellular membrane member 1, it is desirable to provide a drain cock at the lowest position when each cellular membrane member 1 is folded.

Note that the communication pipe 11 may be omitted and a communication path may be provided in the joint edge 2, or the air chambers within each cellular membrane member 1 may be connected to the blower 13 by a bellows hose or the like.

In addition, when removing the pressurized air inside the cellular membrane member 1,
The air inside the cellular n9 member I may be sucked by the blower 13.

Opening/closing means for unfolding and folding the roof member R via the shape-retaining support member 3 are provided symmetrically to the left and right side walls 4a of the building S and the guide member 5 as follows.

That is, one loop wire 16 is wound in a double loop around a plurality of sheeps 14 provided at the front end and rear end of the side wall 4a of the building S and the drum 15a of the motor 15, and at the same time 5a and the inside of the lower mold material 5b,
This wire 16 is fixed to the guide wheel pivot 17a of the upper wire 3a and the guide wheel pivot 17b of the lower wire 3b of the shape-retaining support member 3 at the rearmost portion.

When the motor 15 is rotated clockwise in FIG. 5, the wires 16 inside the sections 5a and 5b run backwards, so that the wires 16 pull both left and right ends of the shape-retaining support member 3 at the rearmost position. , with this shape-retaining support member 3, the roof member R
is unfolded rearward from the folded state, and the upper opening of the building S is covered with the roof member R.

On the other hand, when the motor 15 is rotated counterclockwise, the wires 16 in both the shapes 5a and 5b run forward, so the shape-retaining support member 3 at the rear end is pulled forward, and this shape-retaining support member 3 As a result, the roof member R and other shape-retaining support members 3 are pushed forward and are in a folded state at the folded position at the front end of the building as shown in FIG.

However, if the total length of the roof member R is long, the roof member R may be divided into two parts in the front and back and folded into the front end and the rear end of the building S, or the roof member R may be folded toward the front and back center of the building S. It may also be folded from the front and rear.

However, the motor 15 may be omitted and the roof member R may be opened and closed manually via a wire or the like.

In the above configuration, when closing the cellular airtight membrane type retractable roof, when the shape-retaining support member 3 at the rearmost portion is moved rearward by the opening/closing means as described above, the cellular membrane member 1 and the folded link 8 All the cellular membrane members 1 are expanded through the wires 9 and 10, and the roof member R closes the upper opening of the building S.

Next, when pressurized air is supplied and held inside the cellular membrane member 1 by the pressurized air supply means, each cellular membrane member 1
is sufficiently swollen, and the tension increases the rigidity of the cellular membrane member 1, improving its shape-retaining ability, and the shape-retaining action of the shape-retaining support member 3 causes it to be held in a predetermined curved shape. In this state, the space between the shape-retaining support members 3 is
10 and a bent link 8.

Next, when folding the retractable roof, the pressurized air in the cellular membrane member 1 is released to the outside as described above, or after that, the rearmost shape-retaining support member 3 is moved forward by the opening/closing means. As it is moved, other shape-retaining support members 3
is pushed forward, each cellular membrane member 1 is folded into a folded shape, and the retractable roof is folded into the front end of the building S.

Next, an embodiment of the second invention of the present application will be described based on FIGS. 6 to 9.

As shown in FIG. 6, the cellular airtight membrane type retractable roof according to this embodiment is a retractable roof that can freely open and close all or part of a circular area in plan view, such as a baseball field or other competition facility or a trade fair venue. It is.

FIG. 6 shows a state in which a cellular airtight membrane type retractable roof installed, for example, in a building for a trade fair is being folded.

A guide member 22 (see FIG. 8) is disposed at the upper end of the circumferential wall 20, which is circular in plan view, over the entire circumference, and a central support 23 is erected high upward at the center of curvature of the circumferential wall 20. An upper guide member 24 is provided at the upper end of the central column 23, and a lower guide member 25 is provided at a portion somewhat higher than the middle stage of the central column 23.

The roof member R moves from the lower guide member 25 to the guide member 22.
For example, a cellular membrane member 21 consisting of a double flexible air membrane 21a having a fan shape in plan view is formed in a row in a circumferential direction, for example, 24 m.

The flexible airtight membrane 21a of the cellular membrane member 21 is made of the same membrane material as the flexible airtight membrane 1a of the cellular membrane member 1 in the embodiment.

Joining edge 26 along the radial direction of the cellular membrane member 21
A shape-retaining support member 27 made of wire is fixed to each of the joining edges 26 that connect the cellular membrane members,
The lower end of each shape-retaining support member 27 is supported and guided by the guide member 22, and the upper end thereof is supported and guided by the upper guide member 24 and the lower guide member 25.

Note that a shape-retaining support member 27 is also provided at the joining edge 26 on the free end side of each cellular membrane member 21 at the circumferential end of the roof member R.

As shown in FIGS. 7 and 8, each shape-retaining support member 27 includes an upper wire 27a extending from the upper guide member 24 to the guide member 22, and an upper wire 27a extending from the lower guide member 25 to the guide member 22.
The lower wire 27b extends to the lower wire 27b, and the suspension wire 27c connects the upper wire 27a and the lower wire 27b at appropriate intervals in the radial direction.

A guide ring 28 connected to the upper end of the upper wire 27a
a is freely rotatably installed in the guide groove of the upper guide member 24, while a guide ring 28b connected to the upper end of the lower wire 27b is freely rotatably installed in the guide groove of the lower guide member 25, and the upper wire 27a A guide shaft 28c connected to the lower end portions of the lower wire 27b and the lower wire 27b is rotatably mounted in the guide groove of the guide member 22.

To explain the opening/closing means for opening and closing the roof member R, as shown in FIG. 8, three ring-shaped wires 29a, 29b,
29c is arranged, and these three wires 29, 1, 29
b and 29c are moved in the roof closing direction (in the direction of arrow A in Fig. 6) and in the roof opening direction (in the direction of arrow A in Fig. 6) by independent motors (not shown).
It can also be selectively moved in the direction of arrow B in the figure.

Among the 25 shape-retaining support members 27, the first shape-retention support member is fixed at the roof closed position, and the first shape-retention support member 2
Assuming that the 25th shape-retaining support member 27 is the first shape-retaining support member 27 counting from 7A in the direction of the arrow, the first wire 29a of the wires is connected to the lower end of the eighth shape-retaining support member 27. The second wire 29b is fixed to the pivot support 30 of the 16th shape-retaining support member 27, and the third wire 29c is fixed to the guide wheel support 30 of the 25th shape-retention support member 27. is fixed to.

When the roof member R is unfolded and closed, the eighth
The first to third
Move the wires 29a to 29c at the same speed in the direction of arrow A,
Next, the second and third wires 29b and 29c are moved in the direction of arrow A at the same speed until the 16th shape-retaining support member 27 reaches a predetermined position, and then the 25th shape-retaining support member 27 is moved to a predetermined position (
The third wire 29c may be moved in the direction of arrow A to a position close to the first shape-retaining support member 27A.

When opening and folding the roof member R, the operation opposite to the above may be performed.

Here, when opening and closing the roof member R, the shape retaining support member 27
In order to prevent the upper end from twisting around the central column 23,
As shown in FIG. 7, a ring gear 31 is rotatably mounted on the central column 23 below the upper guide member 24.
The ring gear 31 is a pinion 32 driven by a motor 33.
The distal end of the arm 34, which is selectively rotatable in the forward and reverse directions and is fixed to the ring gear 31, is connected to the upper end of the upper wire 27a of the twenty-fifth shape-retaining support member 27.

Further, on the lower side of the lower guide member 25, a ring gear 35, a pinion 36, a ring gear 35, a pinion 36, a
8 is provided, and the tip of this arm 38 is connected to the upper end of the lower wire 27b of the twenty-fifth shape-retaining support member 27.

As described above, when opening and closing the roof member R, the ring gear 3 is
1 and 35 and arms 34 and 38 are rotated in the direction of arrow B or arrow A.

In order to supply and discharge pressurized air into the air chambers of all the cellular membrane members 21 of the roof member R, the peripheral wall 2
A pressurized air supply pipe 39 connected to a blower is disposed at the upper end of the roof member R, and an air supply/exhaust pipe 40 branched from this pressurized air supply pipe 39 is connected to the first and fourth pipes after the roof member R is expanded. , seventh...19th, and 22nd cellular membrane members 21 are connected to each connecting pipe. Then, pressurized air is supplied from the air chamber in the first cellular membrane member 21 to the air chambers in the second and third cellular membrane members 21 via the communication pipe 41, and the same applies to the other air chambers. Pressurized air is supplied.

When the pressurized air is discharged from the air chamber, the supply/exhaust pipe 40 may be separated from the connecting pipe on the cellular membrane member 21 side.

It is also possible to provide a pressurized air supply system near the lower guide member 25 to supply pressurized air into the cellular membrane member 21 from the upper end side of the roof member R. Since the upper end of the roof member R moves only a small amount during opening and closing, a somewhat longer supply/exhaust pipe made of a flexible pipe can be connected to the pressurized air supply system.

Next, a modification of the above embodiment will be briefly explained with reference to the ninth drawing.

The cellular airtight membrane type retractable roof according to this modification covers approximately half of the circular stadium in plan view in a manner that can be opened and closed, and the remaining approximately half of the stadium is covered by a dome-shaped fixed roof 42. covered with.

In the case of the stadium, since the central pillar 23 cannot be erected at the center, the central pillar 23A provided above the center of the stadium is supported by three arches 43.

In the figure, symbol R is a roof member, and 21 is a cellular membrane member 22.
2 is a guide member, and 27 is a shape-retaining support member having a truss structure made of metal pipe material.

[Brief explanation of drawings]

1 to 5 show embodiments of the first invention of the present application,
Figure 1 is a perspective view of the building with the roof closed, Figure 2 is a perspective view of the building with the roof folded, Figure 3 is a sectional view taken along line III-m in Figure 1, and Figure 4 is the TV-TV in Figure 1. The line sectional view and FIG. 5 are enlarged exploded perspective views of essential parts of the cellular airtight membrane type retractable roof. 6 to 9 show examples of the second invention of the present application,
Figure 6 is a perspective view of the trade fair building in the middle of folding the roof, Figure 7 is a partially cutaway vertical sectional view of the upper end support structure of the shape retaining support member, and Figure 8 is the upper end support structure of the shape retaining support member. FIG. 9, a partially cutaway longitudinal sectional perspective view of the main part, is a perspective view of the stadium in a state where the roof is closed, and is related to the deformed side. R...Roof member, 1...Cellular membrane member, 1a...
- Flexible airtight membrane, 2... Joint edge, 3... Shape-retaining support member, 5°... Guide member, 7a, 7b... Guide wheel,
11...Communication pipe, 12...Supply/exhaust pipe, 13
...Proa, 14...Sheave, 15...Motor,
16...Wire, 17a, 17b...Guide wheel pivot support, 21...Cellular membrane member, 21a...Flexible airtight membrane, 23...Central column, 24...Upper guide member, 25...Lower guide member , 26...joint edge,
27... Shape-retaining support member, 28a, 28b... Guide ring, 29a, 29b-29cm - wire, 31, 3
5.Ring gear, 32.36..Pinion, 33.
37... Motor, 34, 38... Arm, 39... Pressurized air supply pipe, 40... Supply/exhaust pipe, 41... Communication pipe. Patent applicant Kawasaki Heavy Industries, Ltd. Figure 8

Claims (3)

[Claims] (1) A retractable roof that can be opened and closed to cover a rectangular area when viewed from above, has a pair of guide members that extend front and back and are placed in parallel with an appropriate span on the left and right, and a double flexible structure that spans the entire length of the span. A roof member consisting of a plurality of sets of cellular membrane members made of airtight membranes connected in series in the front-rear direction; and a plurality of cellular membrane members fixed to the left-right joint edges of the cellular membrane members and having both ends guided and supported by left and right guide members. A closed state in which a plurality of shape-retaining support members other than the shape-retaining support member in the roof folding position are covered with a roof member by moving them back and forth along a guide member together with the roof member; A cellular airtight membrane type retractable roof characterized by comprising an opening/closing means for opening and closing the roof to an open state in which the roof is folded to a folded position, and a pressurized air supply means for supplying pressurized air into each cellular membrane member. (2) Each of the shape-retaining support members suspends the upper wire provided between the guide members and the lower wire provided between the guide members and fixed to the joining edge of the cellular membrane member. The cellular airtight membrane type retractable roof as claimed in claim 1, characterized in that the cellular airtight membrane type retractable roof is connected by a holding wire. (3) In a retractable roof that covers all or part of a circular area in plan view, a guide member covering all or part of the circumference and a central support provided at least above the center of curvature of the guide member. a roof member consisting of a plurality of sets of cellular membrane members each consisting of a double flexible airtight membrane having a fan shape in plan view extending from the central support member to the guide member and arranged in a circumferential direction; A plurality of shape-retaining support members fixed to the joint edge and having one end guided and supported by the central support member and the other end guided by the guide member, and a plurality of shape-retention supports other than the shape-retention support member at the roof folding position. An opening/closing means that opens and closes a closed state in which the roof member covers the roof member and an open state in which the roof member is folded to a roof folding position by moving the member together with the roof member in the circumferential direction along the guide member and the central support member. A cellular airtight membrane type retractable roof comprising: and a pressurized air supply means for supplying pressurized air into each cellular membrane member.