JPH0224857Y2 - - Google Patents

Description

[Detailed Description of the Invention] <<Industrial Application Field>> This invention relates to a water stop device for stopping water at a connecting portion between membranes in a membrane structure.

《Prior art》 Conventionally, when connecting membranes, in order to prevent water from leaking from the connecting parts, the folded parts of the membranes were glued together with adhesive, and then the membrane presser was wrapped in neoprene rubber and engaged with the central rubber. However, with this method, the neoprene rubber that was engaged became long, and the neoprene rubber was agitated during strong winds and heavy rain, making it impossible to prevent water from leaking from the engagement part.

《Problem that the invention aims to solve》 The membrane is connected at the position of the cable stretched over a span of about 10 meters, but it is currently difficult to prevent water from leaking from this point.

This is because the membrane is stretched as the cable deforms, and the membrane itself deforms on its own, so a flexible water-stopping material is required. Furthermore, during times of strong winds and heavy rain, when the engaging parts move differently, rainwater can enter through the gaps between the capillary tubes due to capillary action. For this reason, it is impossible to prevent water leakage with just a single water stop.

This idea was developed in consideration of the circumstances described above, and its purpose was to create a water stop device that could follow the behavior of cables and membranes, and that also had double water stop sections to prevent water leakage from the connection between the membranes. It is about providing.

<Means for Solving the Problems> In order to achieve the above object, the water stop device used in the membrane structure of the present invention connects the membranes at the cable position, and the membrane retainers 9 and 9A are formed in a U-shape. One that is wrapped and integrated with water stop members 8, 8A,
The membranes 7, 7A coming from both sides are sandwiched between the membrane receiving hardware 6 and fixed to the cable 1 with bolts 3, and the flange protrusion 11B and the hexagonal portion 11A above it are fixed.
The flange protrusion part 11B of the central water stop member 11 consisting of is pushed between the U-shaped water stop members 8, 8A, and the U-shaped water stop members 8, 8A and the flange protrusion part 11B are brought into close contact. At the same time, protruding pieces 18, 18 from the upper part of the U-shaped water stop members 8, 8A are inserted into the grooves 17, 17A provided on the left and right sides of the hexagonal portion 11A.
This is a water stop device used in a membrane structure, characterized in that hook-shaped parts 16 and 16A provided at the tip of A are fitted together.

《Operation》 Two-stage water-stopping structure, that is, the U-shaped water-stopping member and the protrusion with a flange form a secondary water-stopping part, and the left and right grooves of the hexagonal part and the protruding pieces of the U-shaped water-stopping part form a secondary waterstop part. Since the hook-shaped part provided at the tip forms the primary water stop part, even if water leaks from the primary water stop part, the leakage can be stopped by the secondary water stop part below.

<<Example>> An example of this invention will be described below in detail based on the drawings.

FIG. 1 is a sectional view showing how the membranes fit together when they are connected according to this invention.

The membranes 7, 7A are inverted so as to wrap around the membrane end closing rope 12, and the doubled portion is held by the membrane holding hardware 9,
It is designed to be fastened with the cable clamp attachment bolt 3 via the cable holder 9A, and the membrane end binding rope 12 prevents it from coming off even if some tensile force is applied to the membrane. At this time, the lower surfaces of the U-shaped water stop members 8, 8A are sandwiched between the membranes 7, 7A and the membrane presser 12, and the upper portions of the U-shaped water stop members 8, 8A are raised, and then the tightening nut 10 is tightened. Tighten them together. When the tightening is completed, the upper portions of the U-shaped water stop members 8, 8A that have been raised are lowered to integrally connect them with the membrane presser fittings 9, 9A.
Alternatively, the bolt 3 may be set in the membrane presser fittings 9, 9A and wrapped in the U-shaped water stop members 8, 8A, and the nuts may be tightened from below (cable side). After that, U-shaped water stop member 8, 8A
A central water stop member 11 is installed between them.

First, the flanged protrusion portion 11B of the central water stop member 11, which is composed of the flanged protrusion portion 11B and the hexagonal portion above the flanged protrusion portion 11B, is pushed between the U-shaped water stop members 8 and 8A to bring them into close contact. Next, the lock fastener 1 provided on the hexagonal portion 11A of the upper part of the central water stop member 11.
5, open the left and right grooves 17, 17A, and insert the hook-shaped portion 16 at the tip of the protruding piece 18, 18A provided on the upper part of the U-shaped water stop member 8, 8A into the groove 17, 17A. 16A and then inserting the lock fastener 15, the left and right grooves 17,
17A is prevented from opening to obtain an on-site water shutoff device.

The water stop device thus obtained can be roughly divided into two stages of water stop parts as shown in exploded view in FIGS. 3 and 4.

That is, as shown in FIG.
Grooves 1 provided on the left and right sides of the hexagonal portion 11A at the top of 1.
The primary water stop portion 20 is formed by fitting the hook-shaped portions 16, 16A provided at the tips of the protruding pieces 18, 18A from the upper part of the U-shaped water stop members 8, 8A to the water stop members 7, 17A.

Further, as shown in FIG. 4, a secondary water stop portion 21 is formed by pushing the flanged protrusion portion 11B at the lower part of the central water stop member 11 between the U-shaped water stop members 8 and 8A so as to bring them into close contact.

These U-shaped water stop members 8, 8A and the central water stop member 11 are made of materials with excellent flexibility and weather resistance, such as neoprene rubber, so they can follow expansion and contraction. The water stop portion 20 is exposed to wind and rain, and the grooves 17, 17
It is thought that the fitting portion between A and the hook-shaped portions 16 and 16A moves a lot, and water flows downward due to capillary action.

By pushing the flanged projection part 11B at the lower part of the central water stop member 11 between the secondary water stop part 21, that is, the U-shaped water stop members 8 and 8A, and bringing them into close contact with each other, the U-shaped water stop member 8 , 8A and the flange 19 of the flange protrusion 11B are in close contact with each other to catch water leakage from the upper part.

Since this secondary water stop portion is located below the primary water stop portion, it does not come into direct contact with the atmosphere and its water stop function will not deteriorate.

<<Effects of the invention>> As explained in detail in the examples above, the water stop device used in a membrane structure according to this invention has the same structure as the conventional one-stage water stop structure, but By making the flange of the flange protrusion come into close contact with the end of the U-shaped water stopper,
We have made it possible to shut off water even in this part, making it a more complete water shutoff device than ever before.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of how the membranes of this invention fit together when they are connected; Fig. 2 is a perspective view showing the relationship between only the U-shaped water-stopping member and the central water-stopping member; 3 is a cross-sectional view of only the primary water-stopping portion taken out from FIG. 2, and FIG. 4 is a cross-sectional view of only the secondary water-stopping portion taken out from FIG. 2. 1... Cable, 2... Cable clamp, 3
...Cable holding hardware mounting bolt, 4...Cable positioning hardware, 5...Hardware for connecting membrane receiver hardware, 6...Membrane receiver hardware, 7,7A...Membrane, 8,8
A...U-shaped water stop member, 9, 9A...Membrane presser, 10...Tightening nut, 11...Central water stop member, 11A...Turtle-shaped portion, 11B...Protrusion with collar, 12 ... Membrane end closing rope, 13 ... Membrane joint portion, 14 ... Membrane protection sheet, 15 ... Lock fastener, 16, 16A ... Hook-shaped portion, 17, 17
A...Groove, 18, 18A...Protruding piece, 19...Brim, 20...Primary water stop portion, 21...Secondary water stop portion.

Claims (1)

[Scope of utility model registration request] In those connecting membranes at the cable location,
The membrane holding hardware 9, 9A is connected to the U-shaped water stop member 8, 8A.
Cable 1 by sandwiching the membranes 7 and 7A coming from both sides between the one wrapped and integrated with the membrane receiver hardware 6 and the membrane receiving hardware 6.
fixed with bolts 3 to the flange protrusion 11B,
The flange protrusion 11B of the central water stop member 11 consisting of the upper hexagonal part 11A is pushed between the U-shaped water stop members 8, 8A, and the U-shaped water stop members 8, 8A and the flange The U-shaped water stop members 8, 8A are placed in the grooves 17, 17A provided on the left and right sides of the hexagonal portion 11A.
A water stop device used in a membrane structure, characterized in that hook-shaped parts 16, 16A provided at the tips of protruding pieces 18, 18A from the upper part are fitted.