JP2800518B2 - Cable support structure for membrane roof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a membrane roof structure in which a roof membrane stretched over a large space facility is supported via a cable.

[0002]

2. Description of the Related Art In recent years, there has appeared a structure in which a roof of a large space facility or the like having a pillarless structure such as a dome is constructed as a membrane roof. In this membrane roof structure, an upper end portion of an outer wall surrounding a large space facility is covered with a roof membrane formed of a waterproof flexible membrane. The membrane roof is inflated (expanded) by injecting air into the inside of the facility, and a dome-shaped roof having a central portion swelled in the inflated state is formed. Further, the membrane roof is usually supported by a cable laid between opposing outer walls to prevent fluttering due to the influence of wind or the like.

[0003] The cable is, for example, Japanese Utility Model 2-248.
As disclosed in Japanese Patent Application Publication No. 57 (E04H 15/54), the cable is arranged inside the membrane body constituting the membrane roof, that is, inside the facility, and the cable is fixed to the membrane body via the mounting hardware. It has become.

[0004]

However, in such a conventional membrane roof structure, as described above, the membrane and the cable constituting the roof membrane are fixed inside the membrane through the mounting hardware. In order to inflate the membrane roof by injecting air into the facility, it is necessary to lift a fairly heavy cable in a suspended state. Therefore, an unreasonable load is generated between the membrane and the cable. The load at this time is input to a portion where the film body and the cable are attached. Therefore, it is necessary to remarkably increase the strength of the mounting hardware for fixing the cable, and there is a problem that the weight of the mounting hardware is inevitably increased and the mounting hardware becomes expensive.

In view of the above-mentioned problems, the present invention arranges a cable outside a membrane constituting a membrane roof to reduce an unreasonable load input between the membrane and the cable. Accordingly, an object of the present invention is to provide a cable support structure for a membrane roof, in which the structure of the support portion of the cable is significantly simplified and the support portion can be significantly reduced in weight.

[0006]

In order to achieve the above object, a first structure of the present invention is provided with a membrane covering the upper side of a large space facility and a cable supporting the membrane at appropriate intervals. In the membrane roof, the cable is arranged outside the membrane body, and a winding band for detachably winding the cable through a fastener is fixed to an outer surface of the membrane body corresponding to a portion where the cable is arranged. The cable is supported on the membrane through the winding band.

[0007] In order to achieve the above object, a second configuration of the present invention is to form a membrane covering the upper side of a large space facility with an inner membrane,
In a membrane roof having a double membrane structure with an outer membrane, a heat insulating material interposed between the inner membrane and the outer membrane, and a cable for supporting the membrane at appropriate intervals, the cable is disposed outside the membrane. While arranging, the inner membrane and the outer membrane are joined at a portion where the cable is arranged, and a winding band that is detachably wound around the cable via a fastener is fixed to an outer surface of the joined portion, On both sides of the wrapping band, a joint membrane that branches from the outside of the membrane body and covers the outside of the cable is extended, and the cable is supported on the membrane body through the wrapping band, and the joint membrane is used to support the cable. The outside of the cable is covered, and the inside of the joint membrane is filled with a heat insulating material.

[0008]

According to the above structure, in the cable support structure for a membrane roof according to the first aspect of the present invention, the cable arranged outside the membrane is wound by a winding band fixed to the outer surface of the membrane. By turning, these cables and the membrane are attached. Therefore, by arranging the cable outside the membrane, the cable can be pushed up by the membrane itself at the time of inflation of the membrane roof, and when the inflation is completed, the membrane is supported by being pressed by the cable. Therefore, the mounting strength between these films and the cable can be reduced. Therefore, the strength of the cable support can be sufficiently secured by the support by the winding band, and the weight of the support portion can be significantly reduced. In addition, since the winding band is detachable via a fastener, the cable mounting operation can be significantly simplified.

Further, in the cable support structure for a membrane roof according to the second configuration of the present invention, the membrane body has a double membrane structure with an inner membrane and an outer membrane, and a heat insulation is provided between the inner membrane and the outer membrane. The present invention is applied to a membrane roof with a material interposed therebetween. In addition to the function of the first configuration, a joint membrane extending from the outside of the membrane body on both sides of the winding band and extending from the outside of the membrane body is provided outside the cable. And the inside of the joint film is filled with a heat insulating material, so that the heat insulating effect of the joint between the inner film and the outer film where the cable is arranged can be improved.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 4 show one embodiment of a membrane roof structure according to the present invention, FIG. 1 is a schematic configuration diagram showing a cross section of a large space facility to which the present invention is applied, and FIG. 2 is a line AA in FIG. FIG. 3 is a sectional view corresponding to line BB in FIG. 2, and FIG. 4 is an enlarged view of the holding member.

That is, the large space facility shown in FIG. 1 is used as an artificial skiing area 10, and outer walls 12, 12 which are continuous on both sides in the direction perpendicular to the plane of the drawing are constructed.
A membrane roof 14 is stretched between the upper ends of the members 2 and 12. The floor surface 18 of the large space 16 composed of the outer walls 12 and 12 and the membrane roof 14 is continuously inclined in the direction in which the outer walls 12 and 12 extend. The slopes are made up of snow and can be slid on the snow.

The membrane roof 14 is shown in a solid line state in FIG.
Further, the two-dot chain line indicates a state in which the internal air pressure is eliminated and the air is deflated.

As shown in FIG. 2, the membrane roof 14 includes a membrane 24 having a double membrane structure formed by an inner membrane 20 and an outer membrane 22, and a cable 26 disposed outside the membrane 24. And is provided. The inner membrane 20 and the outer membrane 2
2, a heat insulating material 28 is interposed therebetween, and the film roof 14 is configured as a heat insulating film roof. The cable 26
A plurality of cables are stretched between upper end portions of the outer walls 12, 12 at appropriate intervals in a direction in which the outer walls 12 extend (a direction perpendicular to the plane of the drawing).

A machine room 30 and a lift room 32 are provided outside the outer walls 12, 12, and an air conditioner, an artificial snow machine, a snow gun, and the like are installed in the machine room 30.

Here, in the cable support structure of the membrane roof according to the present embodiment, as shown in FIG.
The outer membrane 22 and the outer membrane 22 are joined to each other by fusing at the position where the cable 26 is arranged, and the inner membrane 20 and the outer membrane 22 are integrated at the joint portion 34.
In addition, the heat insulating material 28 is eliminated from the connecting portion 34.

Also, the outer membrane 22 at the connecting portion 34
At the outside of the wrapper, a central portion of a wrapping band 38 to which fasteners 36 are attached at both ends is fixed.
2, it branches off from both sides of the winding band 38,
Joint films 40, 40 that cover the outside of the cable 26 are extended. As the fastener 36, a magic fastener is used.

Then, as shown in FIG. 2B, the cable 26 is attached to the membrane 24 by winding the winding band 38 around the cable 26 and engaging the fastener 36.

After the cable 26 is attached to the membrane body 24 through the winding band 38, air is injected into the large space 16 to inflate the membrane roof 14 as shown in FIG. In this inflated state, the joint films 40, 40
Are arranged so as to cover the outside of the cable 26, and the respective tips are folded and fused to each other. Then, the interior covered with the joint films 40, 40 is filled with a heat insulating material 42.

With the above structure, in the cable support structure of the membrane roof of the present embodiment, the membrane 2
Since the cable 26 is supported on the outside of the cable 4, when the membrane roof 14 is inflated, the cable 26 is pushed up with the rise of the membrane roof 14. When the membrane roof 14 is completely inflated, the rise of the roof membrane 14 is restricted by the cable 26, and the cable 26 supports the membrane roof 14 in this state.

Accordingly, since the membrane roof 14 is supported in a state where the membrane body 24 is pressed against the cable 26 in an inflated state, the mounting strength between the membrane body 24 and the cable 26 can be reduced. . For this reason, the support by the winding band 38, that is, the supporting strength of the cable 26 in a state where the winding band 38 is locked via the fastener 36 can be sufficiently ensured, and the cable supporting portion can be remarkably formed. The weight can be reduced.

The wrapping belt 38 is provided with a fastener 36.
When the cable 26 is attached to the film body 24, it is only necessary to wind the winding band 38 around the cable 26 and lock the fastener 36, and this cable attaching work is extremely simple. Can be

Further, in this embodiment, the membrane 24 has a double membrane structure composed of the inner membrane 20 and the outer membrane 22,
By interposing the heat insulating material 28 between the outer membrane 22 and the outer membrane 22, the membrane roof 14 can be configured as a heat insulating membrane roof, and the influence of the outside air temperature on the large space 16 can be significantly reduced. The air conditioning effect of the ski resort 10 can be significantly improved.

Further, in this embodiment, the cable 26
Is covered with joint films 40, 40, and this joint film 4
0 is filled with a heat insulating material 42.
Therefore, the inner membrane 20 to which the cable 26 is attached is
The joint 34 between the outer membrane 22 and the outer membrane 22 can also be covered with the heat insulating material 42. Therefore, it is possible to prevent the outside air temperature from affecting the large space portion 16 from the connecting portion 34, and it is possible to further improve the heat insulating effect in the indoor artificial ski resort 10.

In this embodiment, the case where the present invention is applied to the membrane roof 14 of the indoor artificial ski resort 10 is disclosed. However, the present invention is not limited to this, and other large space facilities using the membrane roof, for example, a general dome. It is a matter of course that the membrane roof structure of the present invention can be applied to the above.

[0025]

As described above, in the cable mounting structure for a membrane roof according to the first aspect of the present invention, a cable is arranged outside the membrane, and the cable is fixed to the outer surface of the membrane. Since the membrane is attached to the membrane via the winding band, the membrane is pressed by the cable when the roof membrane is inflated, and the mounting strength between the membrane and the cable can be reduced. The strength of the cable can be sufficiently secured by simple cable support. Further, since the winding band is detachable via a fastener, the work of attaching the cable can be significantly simplified, and the construction work of the membrane roof can be speeded up and the cost can be reduced.

In the cable support structure for a membrane roof according to a second aspect of the present invention, the membrane has a double membrane structure comprising an inner membrane and an outer membrane, and a heat insulating material is provided between the inner membrane and the outer membrane. In the membrane roof, the inner membrane and the outer membrane are joined at the location where the cable is arranged, and the cable is supported on the outer surface of the joint portion via the winding strip, while the winding strip is The outside of the cable is covered with a joint membrane that extends from the outside of the membrane body on both sides of the membrane, and the inside of this joint membrane is filled with heat insulating material. In addition to being able to significantly improve the heat insulating effect of the roof, the heat insulating material of the joint film portion has various excellent effects that the heat insulating effect of the joint portion between the inner film and the outer film where the cable is arranged can be greatly improved. Play.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing a cross section of an indoor artificial ski resort to which the present invention is applied.

FIG. 2 is an enlarged sectional view corresponding to the line AA in FIG. 1 sequentially showing a cable support process of the membrane roof in one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Artificial skiing area (large space facility) 12 Outer wall 14 Membrane roof 20 Inner membrane 22 Outer membrane 24 Membrane 26 Cable 28 Insulation material 34 Joining part 36 Fastener 38 Winding band 40 Connecting membrane 42 Insulation material

Claims (2)

(57) [Claims] 1. A membrane roof comprising a membrane covering an upper side of a large space facility and a cable supporting the membrane at appropriate intervals, wherein the cable is arranged outside the membrane, and the cable is arranged. Attached to the outer surface of the film body corresponding to the part to be wound is a winding band that detachably winds the cable via a fastener, and supports the cable to the film body through this winding band. Cable roof support structure. 2. A membrane covering the upper side of the large space facility has a double membrane structure with an inner membrane and an outer membrane, a heat insulating material is interposed between the inner membrane and the outer membrane, and the membrane is supported at appropriate intervals. In a membrane roof provided with a cable, the cable is arranged outside the membrane body, an inner membrane and an outer membrane are joined at a portion where the cable is arranged, and a fastener is provided on an outer surface of the joint portion. A winding band for removably winding the cable is fixedly attached thereto, and a joint film that branches from the outside of the film body and covers the outside of the cable extends on both sides of the winding band, and the winding is performed. A cable support structure for a membrane roof, wherein a cable is supported on a membrane via a band, the outside of the cable is covered with the joint membrane, and a heat insulating material is filled in the joint membrane.