JP2572481Y2 - Cable mounting device for membrane structures - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable mounting device for a membrane structure supported by a cable.

[0002]

2. Description of the Related Art In recent years, there has appeared a structure in which a roof of a building such as a large space facility having a pillarless structure such as a dome is constructed by a membrane roof as a membrane structure. 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, in order to prevent the membrane roof from being fluttered by the influence of wind or the like,
Usually, it is supported by a cable laid between opposed outer walls.

The cable is, for example, disclosed in Japanese Utility Model Laid-Open No.
As disclosed in Japanese Patent Publication No. 5448 (E04H 15/22), the cable is routed inside a membrane constituting a membrane roof, and is attached to the membrane via a mounting device.

The mounting device includes a pair of holding plates disposed on both upper and lower sides of the cable, and a bolt and a nut for tightening the pair of holding plates. The cable is fastened and fixed between the holding plates. It has become.

[0005]

However, in such a conventional cable mounting device for a membrane structure, as described above, the cable mounting device is sandwiched between a pair of holding plates that are tightened and fixed via bolts and nuts. When the cable is attached to the membrane, the nut needs to be tightened each time. For this reason, the task of attaching the cable becomes complicated, and there is a problem that much time is required for the temporary work of the membrane roof.

SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention has an object to provide a cable mounting apparatus for a membrane structure which can easily and quickly mount a cable supporting a membrane. I do.

[0007]

According to the present invention, there is provided a cable attaching apparatus for a membrane structure supported by a cable, comprising: a base plate fixed to the membrane structure; The base plate is erected with a width substantially equal to the diameter of the cable, and a pair of holding pieces each having a hook formed at a tip end thereof, and are disposed so as to straddle between the tip ends of the pair of holding pieces. A lock cap formed of an elastic member locked to the hook portion, and a fitting groove formed at a substantially central portion outside the lock cap;
And a press-fitting member press-fitted into the fitting groove.

[0008]

According to the above structure, in the cable mounting apparatus for a membrane structure according to the present invention, when the cable is mounted, the cable is fitted between a pair of holding pieces erected from a base plate fixed to the membrane structure. Then, a lock cap is arranged so as to straddle between the tip portions of the pair of holding pieces, and the lock cap is engaged with a hook formed at the tip portions of the pair of holding pieces. Then, a press-fitting member is press-fitted into a fitting groove formed at a substantially central portion on the outside of the lock cap. Therefore, by pressing the press-fitting member into the fitting groove, both sides of the fitting groove are expanded, and the expanding force at this time can increase the locking force of the lock cap to the hook portion, The lock cap is fixed to the holding piece with a large locking force, and the cable fitted between the holding pieces can be attached to the membrane structure.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. 1 and 2 show an embodiment of a cable attaching device for a membrane 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. It is an expanded sectional view corresponding to AA.

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 as a membrane structure is stretched between the upper end portions 2 and 12. The outer walls 12, 12 and the membrane roof 1
The floor surface 18 of the large space portion 16 constituted by 4 is continuously inclined in the extending direction of the outer walls 12, 12, and the sloped floor surface 18 is formed with artificial snow to form a slope,
You can glide 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 the deflation is performed. It shows the state that was done. The membrane roof 1
4 is supported by a plurality of cables 20 (see FIG. 2) spanned between the upper ends of the outer walls 12, 12. In addition, both ends of the cable 20 are connected to the outer wall 1 via anchors 22.
2 and 12 so as to be vertically rotatable so that the membrane roof 14 moves smoothly when inflated and deflated. A machine room 24 and a lift room 26 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 24.

As shown in FIG. 2, the whole membrane 30 constituting the membrane roof 14 is constructed by connecting a plurality of membrane pieces 30a to each other via a connecting member 32.
As shown in the figure, the connection member 32 is located inside the film body 30 along the connection ends of the film pieces 30a, 30a to be connected to each other (the inside and outside directions are centered on the large space portion 16). The same applies to the following), and a pair of outer pressers disposed at both ends in the width direction of the inner presser plate 34 and disposed outside the film body 30. Plates 36 and 36 are provided.

The inner holding plate 34 and the outer holding plates 36, 36 are each formed in a belt shape having a predetermined length of stainless steel or an aluminum alloy, and the inner and outer holding plates 34, 36 form respective joints. Displace the membrane piece 3
A plurality is arranged in the connection direction of 0a and 30a. And
Between the inner pressing plate 34 and the outer pressing plates 36, 36, the film pieces 30a,
The connection end of 30a is wound around the cord bodies 41, 41 and sandwiched therebetween, and is fixedly fastened by bolts 42 and nuts 44. At the lower end of the inner holding plate 34, hanging plates 46 for attaching a secondary cable (not shown) are provided at appropriate intervals.

Here, in the present embodiment, as shown in FIG. 2, a cable attaching device 50 is attached so as to straddle between the outer pressing plates 36, 36. The mounting device 50 straddles the outer pressing plates 36, 36,
A base plate 52 fixed via the bolts 40 and the nuts 42, and a pair of holding pieces 54 erected from the base plate 52 with a width substantially equal to the diameter of the cable 20 and formed with hooks 54 a, 54 a at the respective distal ends. ,
And a lock cap 56, which is disposed straddling between the tip portions of the pair of holding pieces 54, 54 and is made of an elastic member such as rubber and the like, which is locked by the hooks 54 a, 54 a.
And is provided. A fitting groove 58 is formed at a substantially central portion on the outer side of the lock cap 56, and a press-fitting member 60 is press-fitted into the fitting groove 58. Further, a rubber spacer 62 is interposed between the cable 20 and the base plate 52 between the holding pieces 54, 54.

In the present embodiment having the above-described configuration, the cable attaching device 50 is provided on the outer pressing plates 36 of the connecting member 32 for connecting the plurality of membrane pieces 30a constituting the membrane body 30 to each other. Therefore, when the membrane roof 14 is inflated, the cable 20 is pushed up via the cable mounting device 50 with the rise of the membrane roof 14.
Then, in a state where the membrane roof 14 is completely inflated, the roof membrane 14 is lifted by the cable 20 to the membrane body 30.
The membrane roof 14 is supported by the cable 20 in this state.

In the present embodiment, when the cable 20 is attached to the cable attaching device 50, the lock cap 56 is detached from the pair of holding pieces 54, 54, and the cable 20 is inserted between the pair of holding pieces 54, 54. Is fitted. Next, the lock cap 56 is disposed so as to straddle between the tips of the pair of holding pieces 54 and 54 with the press-fitting member 60 removed from the fitting groove 58, and the lock cap 56 is attached to each of the holding pieces 54. , 54 formed at the tip of
a, 54a.

Then, the lock cap 56 is
a, 54a.
The press-fit member 60 is press-fitted into the fitting groove 58. Then
The insertion of the press-fitting member 60 expands the fitting groove 58, and the expanding forces F1, F1 at this time increase the locking forces F2, F2 of the lock cap 56 to the hooks 54a, 54a. it can. Therefore, the lock cap 56 has the large locking force F2, F2, and the holding pieces 54, 5
4, the cable 20 fitted between the holding pieces 54, 54 can be attached to the membrane 30.

Therefore, in this embodiment, when the cable 20 is attached, the cable 20 is placed between the pair of holding pieces 54, 54.
After fitting, the cable 20 can be completed by a simple operation of locking the lock cap 56 to the holding pieces 54, 54 and press-fitting the press-fitting member 60 into the fitting groove 58. For this reason, the cable 20 can be easily and quickly attached.

In this embodiment, the cable mounting device 50 is fixed to the film 30 via the connecting member 32. However, the cable mounting device 50 can be directly mounted on the film 30. Further, in the present embodiment, the case where the present invention is applied to the membrane roof 14 of the artificial ski resort 10 is disclosed. However, the present invention is not limited to this, and may be applied to other large space facilities using the membrane roof, such as a general dome. It goes without saying that the cable mounting device of the membrane structure described above can be applied.

[0020]

As described above, in the cable mounting apparatus for a membrane structure according to the present invention, when the cable is mounted, the cable is inserted between a pair of holding pieces erected from a base plate fixed to the membrane structure. Fitting, and then, a lock cap is arranged so as to straddle between the tips of the pair of holding pieces, and the lock caps are locked to hooks formed at the tips of the holding pieces, and The installation of the cable is completed by press-fitting the press-fitting member into a fitting groove formed at a substantially central portion on the outside of the lock cap. Therefore, the structure of the cable attaching device can be simplified, and the cable attaching operation can be speeded up. In addition, the expanding force when the press-fitting member is pressed into the fitting groove causes the hook of the lock cap to move. Various superior effects can be obtained such that the locking force to the part is increased and the cable can be securely held.

[Brief description of the drawings]

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

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

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Artificial skiing area (large space facility) 12 Outer wall 14 Membrane roof 20 Cable 30 Membrane 30a Membrane piece 32 Connection member 50 Cable attachment device 52 Base plate 54 Holding piece 54a Hook part 56 Lock cap 58 Fitting groove 60 Press-fit member

Claims (1)

(57) [Scope of request for utility model registration] 1. A cable mounting apparatus for a membrane structure which is supported via a cable, comprising: a base plate fixed to the membrane structure; and a standing plate having a width substantially equal to a cable diameter from the base plate. A pair of holding pieces having hooks formed at the tips thereof, and a lock cap made of an elastic member that is disposed to extend between the tips of the pair of holding pieces and is locked to the respective hooks. A cable mounting device for a membrane structure, comprising: a fitting groove formed at a substantially outer center portion of the lock cap; and a press-fitting member press-fitted into the fitting groove.