JPH0587170U - Cable attachment device for membrane structure - Google Patents

Abstract

(57) [Abstract] [Purpose] The attachment of the cable supporting the membrane is performed more easily and quickly with less labor. [Structure] A pair of hooks 34 formed at both ends of a main membrane connecting member 32 are attached to eyelets 3 attached to connecting ends of a membrane piece 30a.
Insert 6, 36. On both sides of the central part of the membrane connecting main material 32,
The gripping pieces 42 forming a pair via the mounting bolts 50.
Attach a and 42b so that they can be opened and closed. Grasping pieces 42a, 4
The cable 20 is sandwiched between the recesses 48 of 2b via the sleeve ring 64. The pair of gripping pieces 42a,
The tip ends of 42b are fixed via fixing bolts 52.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cable attachment device for a membrane structure that is supported via a cable.

[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 by a membrane roof as a membrane structure. In this membrane roof structure, the upper edge of the outer wall surrounding the large space facility is covered with a roof membrane formed of a waterproof flexible membrane. The membrane roof is inflated (inflated) by injecting air into the facility, and a dome-shaped roof having a bulged central portion is formed in this inflated state. Further, in order to prevent the membrane roof from being fluttered due to the influence of wind or the like, it is usually supported by a cable installed between opposing outer walls.

For example, as disclosed in Japanese Utility Model Laid-Open No. 60-135448 (E04H 15/22), the cable is routed inside a membrane body that constitutes a membrane roof, and a mounting device is installed. It is designed to be attached to the membrane body through.

The mounting device is configured to include a pair of holding plates arranged on both upper and lower sides of the cable, and a pair of bolts and nuts for tightening both ends of the pair of holding plates. By tightening the pair of holding plates, the cable is clamped and fixed between the pair of holding plates.

[0005]

[Problems to be solved by the device]

 However, in such a conventional cable attachment device for a membrane roof, since the structure is sandwiched between a pair of holding plates that are tightened via a pair of bolts and nuts as described above, the cable is attached to the membrane body. When mounting, it is necessary to tighten a pair of bolts and nuts provided at both ends of the holding plate, which increases the work of tightening these bolts and nuts. Also, when tightening the pair of bolts and nuts, it is necessary to tighten them at both ends of the holding plate with a substantially uniform tightening force, which makes the tightening work extremely difficult, and it takes much time and labor to install the cable. There was a problem that it was necessary.

In view of such conventional problems, the present invention provides a cable attachment device for a membrane structure, which can easily and quickly attach a cable supporting a membrane body with a small amount of labor. The purpose is to provide.

[0007]

[Means for Solving the Problems]

 In order to achieve such an object, the present invention is provided with a membrane connecting main material which is disposed straddling between the connecting end portions of the membrane body and connects the respective membrane bodies, and the central portion of the membrane connecting main material is provided. The pair of gripping pieces are attached to the side so as to be openable and closable via a common pivot, and the cables for supporting the membrane body are gripped between the gripping pieces, and each pair of gripping pieces is held. The tip portions of the holding pieces are fixed to each other.

[0008]

[Action]

 With the above-described structure, in the cable attaching device for the membrane structure of the present invention, the pair of gripping pieces provided on both sides of the membrane connecting main member are opened, and the cable is sandwiched between the gripping pieces. Then, by fixing the tips of the gripping pieces, the cable attachment can be completed. Therefore, the cable can be attached only by fixing the tip portions of the gripping pieces, and the work of attaching the cable can be significantly simplified and the cable can be attached quickly.

Further, since the pair of gripping pieces are provided on both sides of the membrane-connecting main material, the load when the cable is supported by these gripping pieces is evenly distributed on both sides of the membrane-connecting main material. Since it is used, it is possible to prevent this membrane-bonded main material from tilting due to the weight of the cable.

[0010]

【Example】

 Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. 1 to 7 show an embodiment of a cable attachment 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. An enlarged cross-sectional view corresponding to the line AA, FIG. 3 is a side view of the cable attaching device, FIG. 4 is an exploded perspective view of the main part of the cable attaching device, and FIG. 5 is a grip used for the cable attaching device. FIG. 6 is a perspective view showing one of the pieces, FIG. 6 is a sectional view of a sleeve ring used in the cable attaching device, and FIG. 7 is a schematic configuration diagram showing a layout of the cable attaching device.

That is, the large space facility shown in FIG. 1 is used as an artificial ski resort 10, and outer walls 12 and 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 and 12 are constructed. A membrane roof 14 as a membrane structure is stretched between the parts. The floor surface 18 of the large space portion 16 formed by 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 inclined floor surface 18 is Artificial snow is piled up to form a slope, and it is possible to 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 in the two-dot chain line state, the internal air pressure is removed and the deflate is removed. The state is shown. The membrane roof 14 is supported by a plurality of cables 20 (see FIG. 2) installed between the upper ends of the outer walls 12, 12. Both ends of the cable 20 are vertically rotatably connected to the outer walls 12 and 12 via anchor metal fittings 22 to smoothly move the membrane roof 14 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 snowmaking machine, a snow gun, etc. are installed in the machine room 24.

The membrane body 30 constituting the membrane roof 14 is constructed in its entirety by connecting a plurality of membrane pieces 30 a to each other via a membrane connecting main material 32 as shown in FIG. As shown in the figure, the membrane connecting main member 32 has a pair of hooks 34, 34 formed at both ends thereof, and the hooks 34, 34 are respectively provided at the connecting ends of the membrane pieces 30a, 30a. The attached eyelets 36, 36 are inserted. Therefore, the membrane pieces 30a, 30a to be connected to each other are connected to each other via the eyelets 36, 36 inserted in the hooks 34, 34.

Further, a locking tension member 37 is attached so as to straddle between the tip portions of the hooks 34, 34, and locking holes formed at both ends of the locking tension member 37. 37a, 37a are engaged with the tips of the hooks 34, 34 to prevent the eyelets 36, 36 from being pulled out from the hooks 34, 34.

Incidentally, branch membranes 38, 38 are respectively attached in the branched state toward the outside in the vicinity of the connection ends of the membrane pieces 30a, 30a. These branch membranes 38, 38 are connected to the connection portions of the membrane piece 30a. Each tip part is connected with an airtight structure covering the outside. Moreover, the connection ends of the membrane pieces 30a, 30a are looped around the rope 39 and folded back, and the branched membranes 38, 38 are formed with the folded back ends.

As shown in FIG. 7, a plurality of the membrane-bonding main materials 32 are arranged at a short distance L1 of about 100 to 150 mm, and among the plurality of membrane-bonding main materials 32 arranged at the distance L1. The cable attachment device 40 is configured on the membrane connecting main material 32 arranged at a long distance L2 of about 4000 to 6000 mm. As shown in FIGS. 2 to 4, the cable attachment device 40 is configured by attaching paired gripping pieces 42a, 42b and 44a, 44b on both sides of the central portion of the membrane connecting main member 32, respectively. It As shown in FIG. 5, the gripping pieces 42a, 42b and 44a, 44b have overlapping portions 46a, 46b whose upper and lower end portions have approximately half the thickness on opposite sides, and which are A semi-circular recess 48 into which the cable 20 is fitted is formed in the central portion (on the side opposite to the counterpart). Further, first and second openings 54 and 56 through which a mounting bolt 50 and a fixing bolt 52, which will be described later, are inserted are formed in the overlapping portions 46a and 46b.

The mounting bolt 50 is inserted through the first openings 54, 54 of the gripping pieces 42 a, 42 b on one side, and then through the opening 58 formed in the central portion of the membrane connection main member 32. Is inserted through the first openings 54, 54 of the gripping pieces 44a, 44b on the other side, and is attached via the washer 60 and the nut 62 (see FIG. 4). The holding pieces 42a, 42b and 44a, 44b can be opened and closed around the mounting bolt 50.

The cable 20 is sandwiched between the recesses 48 1, 48 ... Of the gripping pieces 42 a, 42 b and 44 a, 44 b forming a pair via a sleeve ring 64. The sleeve ring 64 is symmetrically divided into two as shown in FIG. 6, and the gap δ when divided into two is set to about d / 15 when the diameter of the sleeve ring 64 is d. It

The fixing bolt 52 is inserted between the second openings 56, 56 of the gripping pieces 42a, 42b and 44a, 44b after the cable 20 is clamped in the recesses 48, 48. Then, the nut 66 is stopped. When the fixing bolt 52 is inserted into the second openings 56, 56, ..., The spacer 68 is arranged between the gripping pieces 42b and 44a, and the gripping pieces 42a, 42b and 44a, 44b are inclined. It is designed to prevent

In the cable mounting device 40 of the present embodiment having the above-described configuration, the gripping pieces 42a, 42b and 44a, 44b can be opened and closed via the mounting bolts 50 on both sides of the central portion of the membrane connecting main member 32. The cable 20 is clamped in the recesses 48 of the gripping pieces 42a, 42b and 44a, 44b, and in this clamped state, the tips of the gripping pieces 42a, 42b and 44a, 44b are fixed to the fixing bolts 52. The cable 20 can be attached to the film body 30 only by fixing via the. Therefore, the installation work of the cable 20 is remarkably simplified, and the quick installation can be performed with a small labor.

Further, in the present embodiment, since the gripping pieces 42a, 42b and 44a, 44b are provided in pairs on both sides of the membrane connecting main material 32, the gripping pieces 42a, 42b are formed. When the cable 20 is supported by the cables 44 and 44a and 44b, the load of the cable 20 acts evenly on both sides of the membrane tie main member 32, so that the membrane tie main member 32 tilts due to the weight of the cable 20. Can be prevented. Therefore, the eyelets 36, 36 inserted through the hooks 34, 34 can be properly hooked to reliably connect the membrane pieces 30a, 30a.

In the present embodiment, the case where the present invention is applied to the membrane roof 14 of the artificial ski resort 10 has been disclosed, but the present invention is not limited to this, and other large space facilities using the membrane roof, for example, general dwelling facilities. It is needless to say that the cable attachment device for a membrane structure of the present invention can be applied to a boom or the like.

[0023]

[Effect of the device]

 As described above, in the cable attachment device for a membrane structure according to the present invention, the pair of holding pieces that can be opened and closed are attached to both sides of the main membrane connecting member so that the holding pieces can be opened and closed. Cables are sandwiched, and by fixing the ends of the gripping pieces in the clamped state of the cables, the cable installation is completed, which greatly simplifies the cable installation work. The cable can be installed quickly with little effort.

Further, since the pair of holding pieces are provided on both sides of the membrane-connecting main member, the load when the cable is supported by these holding pieces is applied evenly on both sides of the membrane-connecting main material. Therefore, it is possible to prevent the main membrane tie member from tilting due to the weight of the cable, and it is possible to properly connect the membrane members to each other by the main membrane tie member, which has various excellent effects.

[Brief description of 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 sectional view taken along the line AA in FIG. 1 showing an embodiment of the present invention.

FIG. 3 is a side view of a cable attachment device showing an embodiment of the present invention.

FIG. 4 is an exploded perspective view showing a main part of a cable attachment device according to an embodiment of the present invention.

FIG. 5 is a perspective view showing one of the gripping pieces used in one embodiment of the present invention.

FIG. 6 is a sectional view of a sleeve ring used in an embodiment of the present invention.

FIG. 7 is a schematic configuration diagram showing a layout of a cable attachment device according to an embodiment of the present invention.

[Explanation of symbols]

10 Artificial Ski Area (Large Space Facility) 12 Outer Wall 14 Membrane Roof 20 Cable 30 Membrane 30a Membrane Piece 32 Membrane Connection Main Material 34 Hook 36 Eyelet 40 Cable Attachment Device 42a, 42b, 44a, 44b Grasp Piece 50 Attachment Bolt 52 Fixed bolt

Claims (1)

[Scope of utility model registration request] 1. A membrane member is disposed across the connecting end portions,
A membrane connecting main material that connects each membrane body is provided, and the pair of gripping pieces are attached to both sides of the central part of the membrane connecting main material so as to be openable and closable via a common pivot, and between the gripping pieces. While holding the cable for supporting the membrane body,
A cable attachment device for a membrane structure, characterized in that the pair of gripping pieces are fixed to each other at their tip ends.