JPH0547252U - Cable attachment device for membrane structure - Google Patents

Abstract

(57) [Summary] [Purpose] The attachment of the cable supporting the membrane is performed more easily and quickly. [Structure] The film body 30 is composed of a plurality of film pieces 30a connected to each other via a connecting member 32. The connecting member 32 is the film body 30.
The inner pressing plate 34 is arranged inside the plate body, and the pair of outer pressing plates 36 is arranged outside the film body 30. The base plate 52 is fixed via the bolts 40 and nuts 42 straddling the outer pressing plates 36. The cable 20 is fitted between the pair of holding pieces 54 provided upright from the base plate 52. The lock cap 56 is arranged so as to straddle between the tip portions of the pair of holding pieces 54. Lock cap 56 to each holding piece 5
4 is engaged with a hook portion 54a formed at the tip portion. The press-fitting member 60 is press-fitted into the fitting groove 58 formed in the outer central portion of the lock cap 56, and the expanding force F1 of the fitting groove 58 acts as the locking force F2 of the lock cap 56.

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, a roof of a structure such as a large space facility having a pillarless structure such as a dome has been constructed by a film roof as a film 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 by the influence of wind or the like, it is usually supported by a cable laid 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 includes a pair of holding plates arranged on both upper and lower sides of the cable, and bolts and nuts for tightening the pair of holding plates. The cable is clamped and fixed between the holding plates. It is supposed to do.

[0005]

[Problems to be solved by the device]

 However, in such a conventional cable attaching device for a membrane structure, as described above, since the structure is such that it is sandwiched between a pair of holding plates that are clamped and fixed via bolts and nuts, Each time the nut is attached to the membrane, the nut must be tightened each time. For this reason, there has been a problem that the work of attaching the cable is complicated, and a lot of time is required for the temporary work of the membrane roof.

In view of such conventional problems, it is an object of the present invention to provide a cable attachment device for a membrane structure, which can more easily and quickly attach a cable supporting a membrane body. And

[0007]

[Means for Solving the Problems]

 In order to achieve such an object, the present invention provides a base plate fixed to a membrane structure and a cable diameter from this base plate in a cable attaching device for a membrane structure adapted to be supported via a cable. The pair of holding pieces are provided upright with a substantially equal width, each of which has a hook portion at its tip, and the pair of holding pieces are arranged so as to straddle between the tip portions of the pair of holding pieces. A lock cap made of an elastic member to be stopped, a fitting groove formed in a substantially central portion of the outside of the lock cap, and a press-fitting member press-fitted into the fitting groove.

[0008]

[Action]

 In the cable attaching device for the membrane structure of the present invention having the above-described configuration, when the cable is attached, the cable is fitted between the pair of holding pieces that are erected from the base plate fixed to the membrane structure. Then, a lock cap is arranged straddling the tip portions of the pair of holding pieces, and the lock cap is locked to the hook portions formed at the tip portions of the pair of holding pieces. Then, the press-fitting member is press-fitted into the fitting groove formed in the substantially central portion on the outside of the lock cap. Therefore, by press-fitting 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 pieces with a large locking force, and the cable fitted between the holding pieces can be attached to the membrane structure.

[0009]

【Example】

 Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. 1 and 2 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. It is an expanded sectional view corresponding to the AA line.

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 plane of the drawing in the figure are constructed on both sides, and the upper ends of these outer walls 12, 12 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 shows a state in which air is injected into the large space portion 16 to inflate in a solid line state in FIG. 1, and an internal air pressure is removed in a two-dot chain line state to deflate. 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 as a whole by connecting a plurality of membrane pieces 30 a to each other via a connecting member 32 as shown in FIG. As shown in the figure, the connecting member 32 is arranged inside the film body 30 along the connecting end portions of the film pieces 30a, 30a to be connected to each other (note that the large space 16 is defined in the inner and outer directions). The inner presser plate 34 is arranged in the direction of the center, and the same applies to the following), and a pair of outer parts that are located at both ends of the inner presser plate 34 in the width direction and are arranged outside the film body 30. The pressing plate 36, 36 is provided.

The inner presser plate 34 and the outer presser plates 36, 36 are made of stainless steel or aluminum alloy in the form of strips each having a predetermined length. A plurality of them are arranged in the connecting direction of the film pieces 30a, 30a by shifting them. Then, between the inner pressing plate 34 and the outer pressing plates 36, 36, the connecting ends of the film pieces 30a, 30a are wound around the cords 41, 41 via the cushioning members 38, 40, and sandwiched. The bolts 42 and nuts 44 are used for tightening and fixing. A suspension plate 46 for attaching a secondary cable (not shown) is vertically provided at a lower end portion of the inner pressing plate 34 at appropriate intervals.

Here, in the present embodiment, as shown in FIG. 2, the cable attachment device 50 is attached across the outer pressing plates 36, 36. The attachment device 50 extends over the outer pressing plates 36, 36, and is erected with a base plate 52 fixed via the bolts 40, nuts 42 and a width substantially equal to the diameter of the cable 20 from the base plate 52. The pair of holding pieces 54, 54 having hooks 54a, 54a formed at their respective tips and the tips of the pair of holding pieces 54, 54 are arranged so as to straddle each other. And a lock cap 56 made of an elastic member such as rubber, which is locked to 54a. A fitting groove 58 is formed in a substantially central portion of the outside 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 configuration, the cable attachment device 50 is attached to the outer holding plates 36, 36 of the connecting member 32 that connects the plurality of membrane pieces 30 a, 30 a forming the membrane body 30 to each other. Since it is provided, when the membrane roof 14 is inflated, the cable 20 is pushed up via the cable attachment device 50 as the membrane roof 14 rises. When the membrane roof 14 is completely inflated, the cable 20 restricts the rise of the roof membrane 14 from the outside of the membrane body 30, and in this state, the cable 20 supports the membrane roof 14. .

By the way, in this embodiment, when the cable 20 is attached to the cable attaching device 50, the cable between the pair of holding pieces 54, 54 is removed with the lock cap 56 removed from the pair of holding pieces 54, 54. 20 is fitted. Next, the lock cap 56 is arranged in a state in which the press-fitting member 60 is removed from the fitting groove 58, straddling the tip end portions of the pair of holding pieces 54, 54, and the lock cap 56 is placed in each holding piece 54. , 54 are hooked on the hooks 54a, 54a formed at the tips thereof.

Then, with the lock cap 56 being locked to the hook portions 54 a, 54 a, the press-fitting member 60 is press-fitted into the fitting groove 58 of the lock cap 56. Then, the fitting groove 58 is expanded by the insertion of the press-fitting member 60, and the expanding forces F1 and F1 at this time increase the locking forces F2 and F2 to the hook portions 54a and 54a of the lock cap 56. can do. Therefore, the lock cap 56 is fixed to the holding pieces 54, 54 with the large locking force F2, F2, and the cable 20 fitted between the holding pieces 54, 54 can be attached to the film body 30.

Therefore, in this embodiment, when the cable 20 is attached, the cable 20 is fitted between the pair of holding pieces 54 and 54, and then the lock cap 56 is locked to the holding pieces 54 and 54. Then, the attachment of the cable 20 can be completed by a simple operation of press-fitting the press-fitting member 60 into the fitting groove 58. Therefore, the work of attaching the cable 20 can be performed easily and quickly.

Although the cable mounting device 50 is fixed to the film body 30 via the connecting member 32 in this embodiment, the cable mounting device 50 may be directly attached to the film body 30. it can. Further, although the present invention discloses the case where the present invention is applied to the membrane roof 14 of the artificial ski resort 10 in the present embodiment, the present invention is not limited to this, and the present invention is applied to other large space facilities such as a general dome. It goes without saying that the cable attachment device for the membrane structure of the present invention can be applied.

[0020]

[Effect of the device]

 As described above, in the cable attaching device for the membrane structure of the present invention, when the cable is attached, the cable is fitted between the pair of holding pieces that are erected from the base plate fixed to the membrane structure, Next, a lock cap is arranged so as to straddle the tip portions of the pair of holding pieces, and the lock caps are locked to the hook portions formed at the tip portions of the respective holding pieces, and the outside of the lock caps. The cable attachment is completed by press-fitting the press-fitting member into the fitting groove formed in the substantially central portion. Therefore, the structure of the cable attaching device can be simplified, and the cable attaching work can be speeded up, and at the same time, the expansion force when the press-fitting member is press-fitted into the fitting groove causes the lock cap to be locked. The locking force to the hook portion is increased, and various excellent effects can be obtained such that the cable can be reliably held.

[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.

[Explanation of symbols]

10 Artificial Ski Area (Large Space Facility) 12 Outer Wall 14 Membrane Roof 20 Cable 30 Membrane 30a Membrane Piece 32 Connection Member 50 Cable Mounting Device 52 Base Plate 54 Holding Piece 54a Hook 56 Lock Cap 58 Fitting Groove 60 Press-fitting Member

Claims (1)

[Scope of utility model registration request] 1. A cable attachment device for a membrane structure adapted to be supported via a cable, wherein a base plate fixed to the membrane structure and a base plate fixed from the base plate with a width substantially equal to the cable diameter are provided. A pair of holding pieces each having a hook portion formed at the tip end portions thereof, and a lock cap made of an elastic member that is arranged straddling between the tip end portions of the pair of holding pieces and that is locked to each of the hook portions, A cable attachment device for a membrane structure, comprising: a fitting groove formed substantially in the center of the outside of the lock cap; and a press-fitting member press-fitted into the fitting groove.