JP2734855B2 - Connection structure of membrane - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting structure for connecting connecting ends of a membrane to each other.

[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 the connection structure of the membrane, the upper end of the outer wall surrounding the large space facility is covered with a membrane formed of a waterproof flexible membrane. The membrane roof is inflated by injecting air into the facility.
Then, in this inflated state, a dome-shaped roof whose central portion is swollen is configured.

[0003] Incidentally, since the membrane roof needs to continuously cover a large space facility, its area becomes extremely large. Therefore, the membrane body constituting this membrane roof is formed by connecting a plurality of membrane pieces to each other. The whole is formed. At this time, the connection between the membrane pieces is made, for example, by
This is performed via a connection fitting as disclosed in Japanese Patent Publication No. 0-135448 (E04H 15/22). That is, the connection fitting includes a film holding plate that is disposed to straddle between the connection ends of the film pieces, and a pair of pressing members that are disposed at both ends of the film holding plate. The connection end of the membrane piece is sandwiched between the holding member and the holding member, and the film holding plate and the holding member are fastened to each other via a number of bolts and nuts arranged at appropriate intervals. Therefore, the connection end portions of the membrane pieces are firmly connected by tightening the bolts and nuts, so that even when a large tension acts on the membrane body, the connection ends can be prevented from being separated from the connection portion. Has become.

[0004]

However, in such a conventional connection structure for a membrane, a large number of bolts and nuts must be connected to each other through the connection fittings, as described above. It is necessary to rotate and tighten, and the connection work becomes extremely difficult. For this reason, when trying to construct a membrane roof of a large space facility using the conventional membrane connection structure, there has been a problem that the construction period has to be lengthened and much labor is required.

Accordingly, the present invention has been made in view of the above-mentioned conventional problems, and while the film members are firmly connected to each other, the connection can be easily performed.
It is another object of the present invention to provide a connection structure for a film body that can be performed quickly.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a connecting member which is arranged along a connection end of membranes to be connected to each other, and a longitudinal direction of the connecting member. And a shank through which eyelets respectively provided at connection end portions of the membrane to be connected are inserted, and rotatably attached to a tip end of the shank to rotate in a direction perpendicular to the axis of the shank. And a locking member that prevents the eyelets from being pulled out of the shank by moving.

[0007] The connecting main member is formed in a hollow shape in which the side opposite to the protruding side of the shank is opened, and the connecting end portions of the films connected to each other on the side where the connecting main member is arranged. It is preferable that the first joint films are branched from the vicinity, and the distal ends of the first joint films are wound into the connecting main material from the open portion of the connecting main material and joined.

[0008] Further, the second joint membranes for stopping water are branched from the vicinity of the connection end opposite to the side on which the main connecting member is disposed, of the membrane bodies connected to each other. Are desirably joined to each other.

[0009]

With the above structure, in the connection structure of the film body of the present invention, the locking member attached to the tip of the shank protruding from the main connecting member is arranged in the axial direction of the shank. In this state, the eyelets provided at the connection end of the membrane are inserted through the shank. Then, the connection of the membrane is completed by rotating the locking member in a direction perpendicular to the axis of the shank to prevent the eyelets from coming off. Therefore, in the connection structure of the membrane body of the present invention, the membrane bodies can be connected by a simple operation of inserting the eyelets of the membrane body into the shank and rotating the locking member. Since the eyelet can be inserted quickly and locked by being inserted into the shank, the connection between the membrane members can be made firmly.

[0010] The connecting main member is formed in a hollow shape in which the side opposite to the projecting side of the shank is opened, and the connecting end portions of the films connected to each other on the side where the connecting main member is arranged. The first joint films are branched from the vicinity, and the leading ends of the first joint films are rolled into the connecting main member from the open portion of the connecting main member to join the first connecting films.
The joint membrane can cover the connecting part of the membrane body,
The airtightness of the connection portion can be improved on the side where the main material is arranged by connecting the airtightness.

[0011] Further, the second joint membranes for stopping water are branched from near the connection ends of the membrane bodies connected to each other opposite to the side where the main connecting member is arranged, and these second joint membranes are branched. By joining the tip portions of the two to each other, the connection portion of the film body can be covered with the second joint film, and the water stopping property of the connection portion is connected to improve the side opposite to the side where the main member is arranged. be able to.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 8 show one embodiment of a connection 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 roof membrane to which the present invention is applied, and FIG. FIG. 2 is an enlarged cross-sectional view of a connection portion of the film body corresponding to line AA in FIG. 1.
FIG. 3 is an enlarged plan view of a main part of a connecting portion of the membrane, FIG. 4 is an enlarged perspective view of a main part of a main connecting member used in the present embodiment, and FIGS. FIG. 7 is an enlarged perspective view showing an operation state of the stop member, FIG. 7 is a perspective view of a main part of a connection end of the membrane, and FIG. 8 is an enlarged perspective view of a main part of a connection member of a joint membrane used in the present embodiment.

That is, the large space facility shown in FIG. 1 is used as an indoor artificial skiing area 10, and outer walls 12, 12 are formed on both sides in a direction perpendicular to the plane of the drawing, and the upper ends of these outer walls 12, 12 are constructed. A membrane roof 14 is stretched between the sections. 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 in FIG. 1 as being inflated by injecting air into the large space portion 16, and in a two-dot chain line, the internal air pressure is eliminated. And deflated (contracted). The membrane roof 14 is supported by a plurality of cables (not shown) provided between the upper ends of the outer walls 12 and 12. The machine room 24 and the lift room 2 are located outside the outer walls 12 and 12.
The machine room 24 is provided with an air conditioner, an artificial snowmaker, a snow gun, and the like.

As shown in FIGS. 2 and 3, the entire membrane 30 constituting the membrane roof 14 is constructed by connecting a plurality of membrane pieces 30a to one another. These membrane pieces 30
The connection between a is made via a shank 34 protruding from the main connecting member 32. The connecting main member 32 is a long body having a predetermined length, and is connected to the plurality of connecting main members 32 in the length direction to be continuously arranged along the connection end of the film piece 30a.

The main connecting member 32 is made of a light metal such as aluminum, and has an open portion 3 at its lower end as shown in FIG.
A main body member 36 having a channel-shaped cross section in which 2a is formed;
A connection member 38 for connecting the connection ends of the main body portion 36 to each other. The connecting member 38 is fitted over the outside of the end of the main body member 36, and the connecting member 38 and the main body member 36 are connected via the bolt 40 and the nut 40a.

On the opposite side of the opening 32a of the connecting main member 32, a plurality of the shanks 34 project at appropriate intervals in the longitudinal direction of the connecting main member 32. A notch 34a is formed at the tip end of the shank 34 along the center axis direction, and a locking member 42 is pivotally connected to the notch 34a via a pin 42a. The cut 34
The two side portions separated by a are urged toward each other to provide rotational resistance to the locking member 42, and the locking member 42
The rotation of the shank 34 can be stopped at a rotation position in the direction perpendicular to the axis of the shank 34 as shown in FIG.

As shown in FIG. 7, the connection end of the film body 30 is wound around the cord body 44 and folded, and the folded overlapped portions 30b are fixed to each other by means of fusion or the like. . The eyelets 46 are respectively provided on the overlapping portions 30b of the connection ends at intervals of the shank 34.

By the way, the first joint films 48 and 48 are fused to the vicinity of the connection end on the lower side surface in the figure where the main connecting member 32 of the film piece 30a is disposed, so that these first joint films are formed. 48, 48 are branched from the membrane piece 30a. Then, each of the distal ends of the first joint films 48, 48 is wound into the main connecting member 32 from the open portion of the main connecting member 32, whereby the respective distal ends are joined to each other.

The main connecting member 32 of the film piece 30a is also provided.
In the vicinity of the connection end on the opposite side (upper side in the drawing) to the side where the is disposed, second joint films 50, 50 are respectively fused like the first joint films 48, 48, and these second joint films 50, 50 are fused. Joint membrane 5
0,50 is branched from the film piece 30a. The distal ends of the second joint films 50, 50 are rolled up from the open portion 52a of the connecting member 52 formed in a channel shape in cross section in the same manner as the main connecting member 32, whereby the distal ends are joined to each other. It has become so.

The connecting members 52 are formed to a predetermined length from hard reinforced vinyl chloride. As shown in FIG. 8, the connecting members 52 are connected via a connecting member 54 to connect the film pieces 30a. It is arranged continuously along the edge.

In the film structure connecting structure of the present embodiment having the above-described structure, when connecting the film members 30a, 30a to each other, first, as shown in FIG. In the axial direction. Then, as shown in FIG. 2, the eyelets 46, 46 provided at the connection ends of the membrane pieces 30a, 30a are inserted through the shank 34. At this time, the connection ends of the membrane pieces 30a, 30a to be connected are overlapped with each other, the eyelets 46, 46 are locked by the shank 34, and the membrane pieces 30a, 30a are connected. Next, as shown in FIG. 6, by rotating the locking member 42 in the direction perpendicular to the axis of the shank 34, the eyelets 46, 46 inserted through the shank 34 can be prevented from coming off.

Accordingly, in the present embodiment, the eyelets 46, 46
Is inserted into the shank 34, and the membrane pieces 30a, 30a can be connected to each other by a simple operation of rotating the locking member 42. For this reason, the connection work of the membrane pieces 30a, 30a is greatly simplified, and the work time for constructing the membrane roof 14 can be greatly shortened by speeding up the work. The film pieces 30a, 30a are
4, the film pieces 30a, 30a can be firmly connected to each other, and can sufficiently withstand a large tension acting on the film body 30.

By the way, in this embodiment, the film pieces 30a, 30
The first joint films 48, 48 are branched from the inner side surface of a, and the leading end portions of the first joint films 48, 48 are wound around and joined to the open portions 32a of the connecting main member 32. 1 The film pieces 30a, 3
0a can be covered inside the membrane roof 14. Therefore, since the airtightness of the connection part can be ensured in the inner part of the membrane roof 14, it is possible to prevent the compressed air that inflates the membrane roof 14 from leaking from the connection part.

Further, the second joint films 50, 50 are branched from the outer surfaces of the film pieces 30a, 30a, and the distal ends of the second joint films 50, 50 are joined via the connecting member 52. Therefore, the connection portions of the membrane bodies 30a, 30a can be covered outside the membrane roof 14 by the second joint membranes 50, 50. Therefore, the waterproofness of the connection part is reduced by the membrane roof 1.
4 can be secured at the outer portion, so that rainwater, dust, and the like can be prevented from entering the inside of the membrane roof 14 from the connection portion.

In the embodiment described above, the case where the present invention is applied to the membrane 30 constituting the membrane roof 14 is disclosed.
It goes without saying that the present invention is not limited to this and can be applied to connection of general film bodies.

[0027]

As described above, in the connecting structure of the film body according to the first aspect of the present invention, the eyelets provided at the connection end of the film body for connecting the film bodies are connected to the connecting main material. The membrane members can be connected to each other by a simple operation of passing through the protruding shank and rotating the locking member attached to the tip of the shank. In addition to being strong, the connection work of the membrane can be significantly simplified. Therefore, the connection of the film body can be performed in a short time, and significant labor saving can be achieved.

According to a second aspect of the present invention, the main connecting member is formed in a hollow shape having an open side opposite to a protruding side of the shank, and the connecting main members are connected to each other. Since the first joint films are branched from the vicinity of the connection end on the side where the main material is arranged, and the leading ends of these first joint films are wound into the connecting main material from the open portion of the connecting main material and joined. In addition, the airtightness of the connection portion can be improved and the airtightness can be improved on the side where the main member is disposed.

Further, according to a third aspect of the present invention, the second joints for stopping water from the vicinity of the connection ends of the membranes connected to each other opposite to the side where the main connecting member is arranged. Since the membranes are branched and the distal ends of these second joint membranes are joined to each other, various excellent effects can be achieved in that the water stoppage of the connection portions can be connected and the opposite side from the side where the main material is arranged can be improved. Play.

[Brief description of the drawings]

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

FIG. 2 is an enlarged cross-sectional view of a portion corresponding to line AA in FIG. 1 showing one embodiment of the present invention.

FIG. 3 is an enlarged perspective view of a main part of a connection portion of a film body used in one embodiment of the present invention.

FIG. 4 is an enlarged perspective view of a main part of a main connecting member used in one embodiment of the present invention.

FIG. 5 is a perspective view in which a locking member used in one embodiment of the present invention is set in a state where a membrane is inserted.

FIG. 6 is a perspective view in which a locking member used in one embodiment of the present invention is set to a locked state.

FIG. 7 is a perspective view of a main part of a connection end of a film used in an embodiment of the present invention.

FIG. 8 is an enlarged perspective view of a main part of a connection member of a joint membrane used 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 30 Membrane 30a Membrane piece 32 Connecting main material 34 Shank 42 Locking member 46 Eyelet 48 First joint membrane 50 Second joint membrane

Claims (3)

(57) [Claims] 1. A connecting main member arranged along a connection end of a film body to be connected to each other, and protruding at appropriate intervals in a longitudinal direction of the connecting main member,
A shank into which eyelets provided at connection ends of the membrane to be connected are inserted, and a shank which is rotatably attached to a tip end of the shank and is rotated in a direction perpendicular to the axis of the shank. And a locking member for preventing the eyelets from being removed from the eyelet. 2. The connecting main member is formed in a hollow shape in which a side opposite to a protruding side of the shank is opened, and a connection end portion of a film body connected to each other on a side where the connecting main member is arranged. 2. The membrane according to claim 1, wherein the first joint films are branched from the vicinity, and the leading ends of the first joint films are wound into the joining main material from an open portion of the joining main material and joined. Connection structure of the body. 3. A second joint membrane for stopping water is branched from the vicinity of a connection end opposite to the side on which the main connecting member of the membranes connected to each other is arranged, and these second joint membranes are separated from each other. 3. The connection structure for a membrane body according to claim 1, wherein the distal ends of the membrane members are joined to each other.