JPH07109115B2 - Sealing system for structures with retractable roof - Google Patents

Description

Description: “Industrial field of application” The present invention relates to a structure having a retractable roof that can be opened and closed depending on the weather, between moving roofs, or between a moving roof and a fixed roof. A sealing system for sealing a gap.

“Prior art” Opening and closing roofs can meet the contradictory requirements of being able to obtain a feeling of openness outdoors, sunlight, fresh air, etc. Configurations are provided or proposed.

For example, the roof is removed from the target roof erection site by simply moving it laterally from the target roof erection target site, or the roof is composed of a fixed roof part and a plurality of movable roof parts. To open a part of the upper part of the roof erection target by pulling in on the fixed roof part (inside),
Alternatively, there is a structure in which the roof is formed into a flat plate and is configured to be foldable, and then the roof is opened and closed by folding and unfolding it.

As described above, in a structure having such a retractable roof, as a matter of course, it is necessary to satisfy the contradictory requirements of eliminating the harmful effects of rainy weather while obtaining the open feeling of the outdoors, sunlight, fresh air, etc. The original function as above, that is, the function (sealing function) of completely eliminating rain leaks when the roof is closed is required.

7 to 8 show a conventional example of a sealing system for such a structure (Japanese Patent Laid-Open No. 59-15146).

This conventional sealing system is a releasable dome-shaped structure composed of a movable structure 1 and a fixed structure 2 suspended from the top in an arch shape, and a cut surface 3 between the movable structure 1 and the fixed structure 2 An air tube 4, which is a sealing material, is interposed along the above, and as shown in FIG. A continuous air tube 4 is housed, air is pumped into the air tube 4, and the lower surface of the air tube 4 is brought into sliding contact with the upper surface of the cut surface 1a of the lower movable structure 1.
The sealing effect in 2a is enhanced.

"Problems to be Solved by the Invention" However, although the above-mentioned conventional sealing system certainly achieves the intended purpose as described above, it also has the following drawbacks.

That is, when the structure moves from the closed state to the open state, the air in the air tube 4 is removed to move the movable structure 1.
It is necessary to release the sealing between the fixed structure 2 and the fixed structure 2. However, in such a conventional example, air is not easily spontaneously discharged from the inside of the air tube 4, and in this case it takes time to discharge the air. There is a drawback that the opening operation is delayed. on the other hand,
When the air is forcibly discharged from each air tube 4 using a suction pump or the like, the equipment load increases,
There is a drawback that the running cost becomes high.

The present invention has been made in view of the above circumstances, and a sealing system capable of easily and quickly performing sealing and releasing thereof while ensuring a high sealing effect at the time of closing, and a low running cost, that is, a retractable roof An object of the present invention is to provide a sealing system in a structure having

"Means for Solving the Problem" Therefore, the present invention is a retractable roof in which a roof of a structure is divided into a plurality of parts with vertically overlapping weight portions, and at least one of the divided roofs is configured to be movable. In a sealing system in which a sealing material is interposed in the gap of the overlapping portion, the sealing material is composed of a liquid-tight tube having flexibility and expandability, and the sealing material is provided below the overlapping portion. A sealing member is disposed on the upper side of the overlapping portion to hermetically contact the sealing material, and a liquid supply device for supplying a liquid into the sealing material seals the roof only when the roof is closed. Liquid is supplied into the material to expand this sealing material,
The problem is solved by maintaining the airtightness by bringing the sealing material into contact with the contact member.

In this case, in the liquid supply device, a pump is provided in the middle of the pipe for circulating the liquid between the liquid storage tank and the sealing material, and the liquid return to the tank is shut off when the liquid is supplied to the sealing material. It is preferable that a shutoff valve and an air inlet valve for introducing outside air into the pipe when the liquid is discharged from the sealing material are interposed in the pipe.

[Examples] Examples of the present invention will be described below with reference to the drawings.

First, a structure having a retractable roof to which the present invention is applied will be described with reference to FIGS. 3 to 5. In FIG. 3, a stadium (structure) is indicated by reference numeral 11 as a whole. This stadium 11 has a substantially circular ground 12 and spectator seats 13 provided around the ground 12.
And an openable roof 14 that covers the entire ground 12 and the spectator seats 13.

FIGS. 3 to 5 show the closed state of the retractable roof 14. The roof 14 has a circular planar shape as a whole, and the dome has an upward convex shape as if a spherical body is laid down. It is formed into a shape.

The roof 14 is approximately 2 to the left and right of the circular center in plan view.
It is divided, and one side (left side in FIG. 3) is a moving roof part (split roof) 15 and the other (right side in FIG. 3) is a fixed roof part (split roof) 16. Fixed roof part 16
Has a radius of curvature larger than that of the movable roof portion 15 by approximately the roof thickness, and therefore, the movable roof portion 15 is configured to be superposed below the fixed roof portion 16.

The fixed roof portion 16 and the movable roof portion 15 are supported by a substantially annular support structure 17 provided around the spectator seat 13. This support structure 17 is a semi-annular movable roof support portion 18 located below the closed movable roof portion 15 and a fixed roof portion 16 below, and is separated from the end of the spectator seats 13 in one direction. It is composed of a fixed roof support portion 19 having a shape extending to the.

As shown in FIG. 6, the movable roof support portion 18 has an annular orbit having a diameter slightly smaller than the semicircle of the movable roof portion 15 in a plan view.
20 are formed. The track 20 is adapted to be driven by a drive carriage, and the movable roof part is moved through the drive carriage.
15 is configured to rotate about the circular center of roof 14.

On the other hand, the fixed roof support portion 19 is formed so that its upper end is lower than the movable roof support portion 18, and is formed on a slope that goes downward as the distance from the spectator seat 13 increases. A movable carriage 25 with a drive mechanism is interposed between the fixed roof support portion 19 and the fixed roof portion 16 as shown in FIG. 7, and the movable carriage 25 is installed on the fixed roof support portion 19. It is mounted on track 26, ...

A track 29 is formed on the movable carriage 25 at the same position as the track 20 of the movable roof support portion 18. Therefore, the movable roof part 15 is rotatable not only along the track 20 of the movable roof support part 18 but also along the track 29 of the fixed roof support part 19 and around the entire circumference of the circular center of the roof 14. It is said that.

It should be noted that, although it is a method of operating the moving carriage 25, a well-known means such as an operator appropriately issuing an instruction by remote operation may be used, and it is not necessary to use any special means.

Further, the tracks 26, ... On the fixed roof support portion 19 are installed at both ends of the fixed roof portion 16 and at required positions, and extend in parallel along the extending direction of the fixed roof support portion 19, respectively. It is said that. Therefore, the fixed roof portion 16 and the movable roof portion 15 can be retracted from the spectator seats 13 (and the ground 12) by the movement of the movable carriage 25 along the tracks 26, ... In a state where they are superimposed on each other. It is configured.

The fixed roof portion 16 and the movable roof portion 15 are arranged with a superimposing portion 30 which is vertically superposed at a predetermined interval, and the gap between the superimposing portions is closed by the sealing system 31 according to the present invention. Has been done. Hereinafter, the sealing system 31 will be described with reference to FIGS. 1 and 2.

In FIG. 1 and FIG. 2, the fixed roof portion 16 and the movable roof portion 15 are arranged so as to be vertically overlapped with the fixed roof portion 16 positioned above and the movable roof portion 15 positioned below. A predetermined gap is formed between the fixed roof portion 16 and the moving roof portion 15. Further, a mounting portion 32 protruding upward is formed on the roof portion located below, that is, the overlapping portion 30 of the moving roof portion 15, and a liquid-tight tube (sealing material) is formed on the upper end of the mounting portion 32. 33 is attached to the whole along the overlapping portion 30.

The liquid-tight tube 33 is made of a flexible and expandable material such as a cloth-filled synthetic rubber tube, and is formed to have a horizontally elongated oval shape in an expanded state. If you use a synthetic rubber tube with cloth like this,
The expansion of the tube can be made uniform. Further, tongues 34, 34 integrated with the liquid-tight tube 33 are extended from the left and right ends of the liquid-tight tube 33, and these tongues 34, 34 are bolted to both sides of the upper end of the mounting portion 22. By doing so, the liquid-tight tube 33 is fixed to the mounting portion 32.

Further, in the movable roof portion 15, a water supply pipe (pipe) 36 for supplying the liquid 35 into the liquid tight tube 33 and a drain pipe for discharging the liquid 35 from the liquid tight tube 33 (shown in FIGS. 1 and 2). (Not shown) is provided, and the tips of the water supply pipe 36 and the drain pipe are opened in the liquid tight tube 33. As the liquid 35, for example, water, alcohol, oil or the like is used, and when water is used, an antifreeze liquid may be mixed as a measure against freezing in winter.

On the other hand, a receiving frame (contact member) 37 is attached at a position corresponding to above the liquid-tight tube 33 on the roof portion located above, that is, the lower surface of the overlapping portion 30 of the fixed roof portion 16.
The receiving frame 37 is roughly composed of a flat plate portion 37a slightly wider than the upper end of the liquid tight tube 33, and chevron portions 37b and 37b formed at both ends of the flat plate portion 37a, and the chevron portions 37b and 37b are bolts. It is fixed to the fixed roof part 16 by being stopped. The receiving frame 37 is made of a material such as metal or rubber that can come into contact with the liquid-tight tube 33 in an airtight manner.

Next, a liquid supply device 38 for supplying water 35 into the liquid tight tube 33 will be described with reference to FIG. 8. The liquid tight tube 33 and the falling water tank 39 are connected by a water supply pipe 36 and a drain pipe 40. The water supply pipe 36 has a pressurizing pump 41 and a solenoid valve 42.
Also, a pressure tank 43 is interposed. Further, the drain pipe 40 is provided with an inlet valve 44 and an on-off valve 45.

Therefore, the liquid-tight tube 33 having such a structure has the following functions.

When the openable roof 14 is closed, the solenoid valve 42 of the liquid supply device 38 is closed and the intake valve 44 and the open / close valve 45 are closed, and the pressurizing pump 41 is operated in this state, The liquid 35 is supplied into the liquid tight tube 33 through the water supply pipe 36. The supplied liquid 35 increases the liquid pressure in the liquid-tight tube 33 and expands the liquid-tight tube 33, and the upper surface thereof is the receiving frame 37.
By being pressed against, the sealing between the fixed roof portion 16 and the moving roof portion 15 is performed.

On the other hand, when opening the retractable roof 14, the liquid supply device
When the solenoid valve 42 of 38 is opened and the opening / closing valve 45 is opened, and when the outside air is introduced into the drainage pipe 40 by the air inlet valve 44 in this state, the liquid 35 in the liquid tight tube 33 has its own weight. As a result, it falls downward and immediately returns to the inside of the falling water tank 39. Accordingly, the fixed roof portion 16 and the movable roof portion 15 can be easily and quickly sealed. The pressurizing pump 41 at this time is stopped.

Therefore, in this embodiment, when the liquid-tight tube 33 is expanded to seal between the fixed roof portion 16 and the moving roof portion 15, the liquid 35 is supplied into the liquid-tight tube 33 so that the tube is closed.
Since the tube 33 is expanded due to the increase in the liquid pressure inside the liquid 33, the liquid 35 discharge work can be performed by utilizing the own weight of the liquid 35, and the sealing can be released easily and quickly. Moreover, this liquid 35 is used by utilizing the own weight of the liquid 35.
Since it can be discharged from the inside of the tube 33, a forced discharge means such as a suction pump is not required, the facility load is reduced, and the running cost can be kept low.

Further, as compared with the case where the liquid-tight tube 33 is expanded with a gas such as air as in the conventional case, the upper end surface of the liquid-tight tube 33 becomes a flat surface in the expanded state, and the fitting with the receiving frame 37 is good and the sealing is good. There is also an advantage that the effect is high.

The details of the sealing system of the present invention are not limited to those in the above embodiment, and various modifications are possible. As an example, the above-described embodiment is an example in which the movable roof portion is configured to be rotatable and is applied to a retractable roof in which the movable roof portion is pulled below the fixed roof portion. It is suitably applicable. Further, the configuration of the liquid supply device is not limited to the above embodiment, and a well-known and common liquid supply device can be suitably applied. Further, the shapes of the liquid-tight tube and the receiving frame are not limited to the shapes of the above-described embodiment.

"Effects of the Invention" As described in detail above, according to the present invention, the roof of a structure is divided into a plurality of overlapping portions that are vertically overlapped with each other, and at least one of the divided roofs is configured to be movable to open and close. In a sealing system in which a sealing material is interposed in a gap of the overlapping portion of a roof, the sealing material is composed of a liquid-tight tube having flexibility and expandability, and the sealing material is below the overlapping portion. And a contact member that is in airtight contact with the sealing material above the overlapping portion, and a liquid supply device that supplies a liquid into the sealing material only when the roof is closed. Since liquid is supplied into the sealing material to expand the sealing material and the sealing material is brought into contact with the contact member, airtightness is maintained. The liquid can be discharged by using, and the sealing between the divided roofs can be released easily and quickly. Moreover, since the liquid can be discharged from the inside of the tube by utilizing the self-weight of the liquid, a forced discharge means such as a suction pump is not required, the facility load can be reduced, and the running cost can be kept low.

[Brief description of drawings]

1 and 2 are views showing a sealing system in a structure having a retractable roof which is an embodiment of the present invention, and FIG. 1 is a sectional view showing a case where the roof is closed. FIG. 2 is a cross-sectional view showing a case where the roof moves to an open state, and FIGS. 3 to 5 are views showing a structure having a retractable roof to which the same embodiment is applied. Is a sectional view showing a case where the roof is in a closed state, FIG. 4 is a plan view of the same, FIG. 5 is a sectional view showing a case where the roof is in an open state, and FIG. 6 is a schematic view showing an example of a liquid supply device. , FIG. 7 to FIG. 8 are views showing a conventional sealing system, FIG. 7 is a front view showing a dome-shaped structure to which the system is applied, and FIG. FIG. 11 …… Stadium (structure), 14 …… Opening roof, 15…
… Moving roof part, 16 …… Fixed roof part (both split roofs), 30
…… Superposition part, 31 …… Sealing system, 33 is a liquid-tight tube (sealing material), 35 …… Liquid, 36 …… Water supply pipe, 37
…… Receiving frame (contact member), 38 …… Liquid supply device, 40 …… Drain pipe.

Claims (2)

[Claims] 1. A sealing material is provided in a gap between the overlapping portions of an openable roof in which a roof of a structure is divided into a plurality of overlapping roof portions, and at least one of the divided roof roofs is movable. In the sealing system, the sealing material is composed of a liquid-tight tube having flexibility and expandability, and the sealing material is arranged on the lower side of the overlapping portion and on the upper side of the overlapping portion. A contact member that comes into contact with the sealing material with airtightness is provided in
Further, by the liquid supply device for supplying the liquid into the sealing material, the liquid is supplied into the sealing material to expand the sealing material only when the roof is closed, and the sealing material is brought into contact with the contact member. A sealing system in a structure having a retractable roof, which is characterized by maintaining airtightness. 2. The sealing system according to claim 1, wherein the liquid supply device is provided with a pump in the middle of a pipe for circulating the liquid between the liquid storage tank and the sealing material, and to the sealing material. A shutoff valve for shutting off liquid return to the tank at the time of liquid supply and an air intake valve for introducing outside air into the pipe at the time of discharging the liquid from the sealing material are interposed in this pipe. Sealing system for structures with retractable roofs.