JPH0616650U - Membrane connection structure - Google Patents

Abstract

(57) [Summary] [Purpose] A simple structure that exhibits high sealing performance over the entire length of the connecting portion of the membrane. [Structure] The film body 30 is formed by connecting a plurality of film bodies 14a to each other. The pair of guide members 30 are fixed to the connection ends of the film body 14a. A sandwiching member 32 sandwiches the outer sides of the pair of guide members 30. The outside of the sandwiching member 32 is pressed via the pressing member 34. The guide member 30 is formed into a long body and connected to each other to form the film body 14a.
Are arranged continuously over the entire length of the connection end of the.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a connection structure for a film body capable of improving the hermeticity between the film bodies.

[0002]

[Prior art]

 In recent years, there has been an appearance in which a roof of a structure such as a large space facility having a pillarless structure such as a dome is constructed as a membrane roof. This membrane roof covers the upper end of the outer wall surrounding the large space facility with a membrane structure made of a waterproof flexible membrane in an airtight structure. Then, by injecting air into the facility, the membrane roof is inflated (expanded), and in this inflated state, a dome-shaped roof having a bulged central portion is formed.

By the way, since the membrane roof needs to continuously cover a large space facility, its area becomes significantly large. Therefore, the membrane roof is formed by connecting a plurality of membrane bodies to each other. It is supposed to be done. At this time, the membrane members are connected to each other via a connecting metal member as disclosed in, for example, Japanese Utility Model Publication No. 2-24857 (E04H 15/54). That is, the connection fitting is provided with inner and outer presser metal fittings arranged on both sides of the film body across the connecting end portions of the film body, and the presser metal fittings on both sides are arranged at appropriate intervals. ， It is configured to be tightened via nuts.

[0004]

[Problems to be solved by the device]

 However, in such a conventional structure for connecting film bodies, the inner and outer presser fittings provided on the connection fittings for connecting the respective film bodies are tightened at appropriate intervals via bolts and nuts. For this reason, a high sealing function can be obtained between the film body and the presser foot in the vicinity of the tightened parts of the bolts and nuts, but the sealability deteriorates at the part away from the tightened parts, and as a result, airtightness and Liquid tightness is reduced. Therefore, there is a problem that the air pressure that keeps the membrane roof in an inflated state leaks from the portion where the hermeticity is deteriorated, and rainwater may enter the facility in some cases.

In view of such conventional problems, it is an object of the present invention to provide a connecting structure for a film body that has a simple structure and can exhibit high sealing performance over the entire connecting portion of the film body. To do.

[0006]

[Means for Solving the Problems]

 In order to achieve such an object, the present invention includes a pair of long guide members that are continuously fixed to the connection ends of the membranes that are to be connected to each other, and a slit that is continuous in the length direction. A tubular sandwiching member and a pressing member for sandwiching the outside of the sandwiching member at an appropriate interval are provided, and the outside of the guide member is sandwiched between the pair of guide members with the film body sandwiched therebetween. It is configured to be sandwiched by the slits of the inserting member, and the outside of the inserting member is held in the closing direction by a pressing member.

Further, the pressing member includes a pair of rotating members that can be opened and closed about a pivot, and the one end of the rotating member sandwiches the outer side of the sandwiching member and faces the other. It is desirable to be able to attach a holding member that straddles the end portions and holds the sandwiched state of the sandwiching member.

[0008]

[Action]

 In the structure for connecting membranes of the present invention, the guide members can be prevented from being separated from each other by sandwiching the outer sides of the pair of guide members with the slits of the sandwiching members. The connection end of the membrane can be sandwiched between them. Then, by holding the outside of the sandwiching member in the closing direction by the pressing member, the slit of the sandwiching member can be pressed in the closing direction, and the force of sandwiching the film body by the guide member can be increased. Therefore, the connecting ends of the film body are joined to each other with a large clamping force, and the long guide members are continuously arranged, so that the connecting end parts of the film body are high over the entire length. Can be joined with hermeticity.

In addition, the pressing member includes a pair of rotating members that can be opened and closed about a pivot, and the one end of the rotating member sandwiches the outside of the sandwiching member and faces the other. Since the holding member that holds the sandwiched state of the sandwiching member across the end portions can be attached, the sandwiching member can be reliably sandwiched by the holding member when the holding member is attached. In addition, the structure of the pressing member itself can be simplified.

[0010]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 to 6 show an embodiment of a connecting structure of a membrane body according to the present invention, FIG. 1 is a schematic configuration diagram showing a cross section of a large space facility using a membrane roof to which the present invention is applied, and FIG. 2 is 1 is an enlarged sectional view showing a mounting state of a fixing member corresponding to line AA in FIG. 1, FIG. 3 is a sectional view taken along line BB in FIG. 2, and FIG. 4 is a sectional view taken along line CC in FIG. 5 is a perspective view of a holding member used in the connection structure of the present embodiment, and FIG. 6 is a perspective view in which a main part of a sandwiching member used in the connection structure of the present embodiment is cross-sectioned.

That is, the large space facility shown in FIG. 1 is used as an artificial ski resort 10, and outer walls 12, 12 that are continuous in the direction perpendicular to the paper surface in the figure are constructed on both sides, and the upper ends of these outer walls 12, 12 are constructed. A membrane roof 14 is stretched between the parts. 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 extending direction of the outer walls 12 and 12, and the floor surface 18 is artificially attached to the inclined floor surface 18. It is designed so that snow can be accumulated to form a slope and the ski can slide on the snow.

The membrane roof 14 is inflated by injecting air into the large space 16 in the solid line state in FIG. 1, and is deflated by eliminating the internal air pressure in the two-dot chain line state. The state is shown. The membrane roof 14 is supported by a plurality of cables (not shown) installed between the upper ends of the outer walls 12, 12. A machine room 24 and a lift room 26 are provided outside the outer walls 12, 12, and an air conditioner, an artificial snowmaking machine, a snow gun, etc. are installed in the machine room 24.

As shown in FIG. 2, the membrane roof 14 is constructed as a whole by connecting the membrane bodies 14a, 14a to each other. The film bodies 14a, 14a are connected to each other by a pair of guide members 30, 30 fixed to the connection ends of the film bodies 14a, 14a, and a sandwiching member 32 for sandwiching the outer sides of these guide members 30, 30. The holding member 34 further holds the outside of the sandwiching member 32.

The guide members 30, 30 are formed as elongated members having a substantially L-shaped cross section, and by connecting the elongated guide members 30, 30 to each other, the film members 14 a, 14 a are formed. Are continuously arranged over the entire length of the connection end of the. Further, when the guide members 30, 30 are fixed to the connection ends of the film members 14a, 14a, the tip portions of the film members 14a, 14a are projected from the guide members 30, 30 by a predetermined size. It has become. Then, the L-shaped bent portions 30a, 30a of the guide members 30, 30 are arranged outward, and the film bodies 14a, 14a are fixed to the inner sides 30b, 30b of the guide members 30, 30.

As shown in FIG. 5, the sandwiching member 32 is a long cylindrical pipe made of vinyl chloride or the like, and the sandwiching member 32 has a lower end portion continuously extending in the longitudinal direction. The slit 32a to be formed is formed. A plurality of the sandwiching members 32 are used and are connected to each other through a connecting tube 32b, and are arranged continuously over the entire length of the guide members 30, 30. Needless to say, a slit (not shown) is formed in the connecting cylinder 32b so as to correspond to the slit 32a.

The sandwiching member 32 covers the upper side of the guide members 30, 30 to which the film bodies 14a, 14a are fixed, and is sandwiched between the outer sides of the guide members 30, 30 by the slit 32a. . The ends of the film bodies 14a and 14a protruding from the guide members 30 and 30 are overlapped with each other and wound around the sandwiching member 32 to be housed.

As shown in FIG. 6, the pressing member 34 includes a pair of rotating members 34a and 34b which can be opened and closed around a pin 38 as a pivot, and the rotating members 34a and 34b face each other. Pressing portions 40, 40 having concave and convex portions are formed at one end portion (lower end portion in the figure). One end side of the rotating members 34a, 34b is formed in an arc shape along the outer periphery of the sandwiching member 32, and the pressing portions 40, 40 are formed on both sides of the slit 32. It is supposed to be located.

On the other hand, the other end portions (upper end portions in the drawing) of the rotating members 34a and 34b face each other at an appropriate interval, and the holding member 42 can be attached across the other end portions. Has become. The holding member 42 is set to a length L suitable for the pressing portions 40, 40 to hold the holding state of the holding member 32. Further, as shown in FIG. 4, the holding member 42 is fixed by the split pins 44, 44 in a state in which the step portions 42a, 42a formed at both ends are engaged with the other ends of the rotating members 34a, 34a. It is supposed to be done.

In the connecting structure of the film body according to the present embodiment having the above-described configuration, the guide members 30, 30 are sandwiched by the slit 32 a of the sandwiching member 32, so that the guide members 30, 30 are The connection ends of the film bodies 14a, 14a fixed to the insides 30b, 30b are joined in a state of abutting each other. Then, the outside of the sandwiching member 32 is sandwiched and held by the pressing member 34 in the closing direction, so that the slit 32a of the sandwiching member 32 is pressed in the closing direction, and the guide member 30, It is possible to increase the sandwiching force of the film bodies 14a, 14a by 30 and prevent separation of the film bodies 14a, 14a joined together.

Further, since the guide members 30 and 30 are formed to have a long length and are continuously connected to each other, the connection end portions of the film bodies 14a and 14a have high sealing performance over the entire length thereof. Can be joined together. Therefore, since the airtightness of the connecting portions of the membrane bodies 14a, 14a can be maintained, the air pressure in the large space portion 16 inflating the membrane roof 14 is reliably prevented from leaking to the outside, As a result, it is possible to reduce the size of the air blower for maintaining the air pressure in the large space 16 constant.

Further, the pressing member 34 is composed of a pair of rotating members 34a, 34b that rotatably support a pin 38, and a holding member 42 straddling between the other ends of the rotating members 34a, 34b. By attaching the, the pressing portions 40, 40 can maintain the state of pressing the outside of the sandwiching member 32. Therefore, the sandwiching force of the guide members 30, 30 by the sandwiching member 32 is not reduced, and the sealing performance of the film bodies 14a, 14a is ensured for a long period of time, and the durability of the film roof 14 is extended. Can be greatly improved. Further, since the pressing member 34 is roughly configured by connecting the pair of rotating members 34a and 34b with the pin 38 as described above, the configuration can be simplified.

Although the present invention discloses the case where the present invention is applied to the membrane roof 14 in the present embodiment, it is needless to say that the present invention can be applied to general membrane connection without being limited to this.

[0023]

[Effect of device]

 As described above, in the structure for connecting a film body according to claim 1 of the present invention, the film body is connected between the guide members by simply sandwiching the outer sides of the pair of guide members with the slits of the sandwiching members. Since the end portion is clamped and the outer side of the clamping member is held in the closing direction by the pressing member, the connection of the film body can be simplified, and the connection of the film body is quick. In addition to being able to do so, labor saving can be achieved. Further, since the guide members are arranged continuously, they can be joined with high sealing property over the entire length of the connecting end portion of the film body.

Further, the pressing member includes a pair of rotating members which can be opened and closed about a pivot, and the one end of the rotating member sandwiches the outside of the sandwiching member and faces the other. Since the holding member that holds the sandwiched state of the sandwiching member across the end portions can be attached, the structure of the holding member itself can be simplified, and with the holding member attached, The holding member can reliably hold the holding member for a long period of time, and further, the durability of the film body can be significantly improved, thereby exhibiting various excellent effects.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing a cross section of a large space facility using a membrane roof to which the present invention is applied.

FIG. 2 is an enlarged cross-sectional view of a mounting state of a fixing member corresponding to the line AA in FIG. 1 showing an embodiment of the present invention.

FIG. 3 is a sectional view taken along line BB in FIG.

4 is a cross-sectional view taken along the line CC in FIG.

FIG. 5 is an enlarged perspective view of a sandwiching member used in an embodiment of the present invention.

FIG. 6 is a perspective view of a pressing member used in an embodiment of the present invention.

[Explanation of symbols]

10 Artificial Ski Area (Large Space Facility) 12 Outer Wall 14 Membrane Roof 14a Membrane Body 30 Guide Member 32 Clamping Member 32a Slit 34 Holding Members 34a, 34b Rotating Member 38 Pin (Pivot) 42 Holding Member

Claims (2)

[Scope of utility model registration request] 1. A pair of elongated guide members that are continuously fixed to connection ends of film bodies that are to be connected to each other, and a tubular sandwiching member having continuous slits in the length direction. A holding member for holding the outside of the sandwiching member at an appropriate interval, and sandwiching the film body between the pair of guide members, sandwiching the outside of the guide member in a slit of the sandwiching member, and A structure for connecting a film body, characterized in that an outer side of the sandwiching member is held in a closing direction by a pressing member. 2. The pressing member includes a pair of rotating members that can be opened and closed about a pivot, and the one ends of the rotating members sandwich the outside of the sandwiching member and the other opposite ends. 2. A holding member that straddles the parts and holds the sandwiched state of the sandwiching member is attachable.
The connection structure of the film body according to 1.