JP2008215614A - Water supply tube - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water supply tube capable of solving the conventional problem that it is not possible to sprinkle a small quantity of water along a water supply path to the area around the path uniformly while the internal pressure is held comparatively low. <P>SOLUTION: A woven cloth is folded, and cloth parts as folds are sewn or welded together at a certain distance from the edges so as to form a cylinder part for feeding the water, and the water supply tube is equipped with this cylinder part and cloth portions on the sides as remainder which continue to the cylinder part, and these cloth portions are used upon being spread in such a way as to cover the surface to be sprinkled with water, and when water is fed to the cylinder part, the water oozing out at the stitches of the cloth in the cylinder part is sucked by the cloth portions and dispersed to the surrounding area, which allows the whole cloth areas to serve as the water supply surface. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a water supply tube that feeds, absorbs, and diffuses water, and more specifically, relates to a water supply tube that oozes water through a weave of a woven fabric and distributes the water widely. This water supply tube can be used for the purpose of melting snow in the heavy snow area for water spraying in winter, for water spray cooling or heat collection in the summer, and as a watering device for cultivated soil.

The sprinkling tube of a synthetic resin molded product is inexpensive and easy to handle, so it is used for various sprinkling applications.
This type of watering tube has a structure in which a large number of minute nozzles are provided on the side wall, and spray water is dissipated to the surrounding area to spray water over a wide area. Since the amount of water sprayed depends on the number of nozzles, an excess or deficiency in the amount of water may occur depending on the application.

  However, when used for watering the uneven roof surface or supplying water to the soil where the foliage stands, spray water cannot fly evenly because of the obstacles on the water injection path. If there is a wind, water will scatter. As a result, a place where a large amount of water is stagnated or not splashed around the tube is left, the water is wasted and the spray surface becomes mad. In snowmelt applications, the amount of groundwater is limited, so the impact is severe unless the spray area covers the required area. Also, since the nozzle tube has a small nozzle perforation diameter and is easily clogged, it is difficult to maintain the watering performance while leaving it for a long time.

  This drawback is a major obstacle in terms of wide area water supply and maintenance in the application of melting snow on the roof and watering the soil. Specifically, unless a large number of water sprayers are used and a large amount of water is sprayed, the water discharge does not reach all the intended spraying surfaces, so a snow accumulation occurs when used for melting snow, and a large amount of local water spray for soil use. There was a problem that earth and sand were washed away.

As a countermeasure, there is a method of selecting a hose having a circular cross section from which water oozes from the peripheral surface. As an example, a flexible hose obtained by extruding a composite material in which a fiber material and a resin are kneaded is used. This type of hose is weak against crushing deformation. Due to the structure that exudes water while the internal pressure is increased, cracks and cracks enter the hose wall, and spilled water is likely to occur. Since the amount of water leakage due to breakage is large, water supply will be stopped at that time, but since the water path is continuous, the stop of water injection affects the entire water supply path. Since water supply on the roof is premised on long-term use, maintenance of water leakage is unacceptable to the user.
Japanese Patent No. 3512852 JP-A-2005-341840

  The problem to be solved is that a small amount of water cannot be evenly supplied around the route along the water supply route with a low internal pressure.

  The present invention provides a water supply passage through which water is oozed by providing a water-permeable tube portion on a woven fabric fabric and using the yarn weave, and the woven fabric portion woven yarn continuous with the woven yarn in the tube portion is used to The main feature is that the entire surface of the woven fabric is used as a water supply surface by sucking and diffusing water.

  The amount of water exuded from the woven fabric does not change greatly due to the area effect even if clogging gradually proceeds. If the water supply pressure is changed as necessary, the amount of water oozing can be increased or decreased. The water supply surface made of soft woven fabric is flexible and fits well with the unevenness of the ground, and it can be deformed flexibly against rolling pressure from the top, so there are few restrictions on the installation location. The tube part wraps and flows water and oozes evenly and uniformly around the water, and a relatively small amount of water can be smoothly and widely distributed from the peripheral wall of the cylinder part to the woven fabric part. be able to.

The purpose of spreading a small amount of water evenly around the water supply path is to use a single woven fabric with a continuous weaving thread and a water-absorbing diffusion area that wraps water formed using a woven fabric structure. It was realized.
In this specification, the case where a water supply tube is used for the snow melting of a folding roof is demonstrated for convenience of explanation.

  Folded half-roofs have a simple roof structure and are excellent in pressure resistance, so they are often used in large buildings. The groundwater sprinkling system is generally used for melting snow on such a large folding roof, and there are many cases where sprinklers and spray nozzles are used. However, if a large amount of snow falls for a long time, the melting of the snow cannot catch up, and the spraying of the heat medium to the uneven surface of the roof in an oblique direction makes the ridges obstructed and uneven wetting, and the particles fly in the open air. Large loss of heat to the atmosphere. Also, when the wind and snow are strong and the spray water is blown off, the effect of watering is lost. Under these circumstances, the snow pool expands, the remaining snow is connected, the roof surface is covered with snow over a wide area, a tunnel is formed on the lower side, and eventually the entire roof is covered with snow, and snow accumulation expands.

The water supply tube shown in FIG. 1 is made from a continuous woven fabric 1. This woven fabric is folded (FIG. 2), and a water-permeable tube portion 3 (FIG. 3) is formed by sewing or welding the woven fabrics at a predetermined distance from the edge 2 of the folded fabric. The woven fabric portions 4 on both sides that are continuous with the cylindrical portion are provided. FIG. 4 is a completed view of the water supply tube manufactured as described above.
The woven fabric portion 4 of the water supply tube is used so as to cover the surface to be sprayed.

FIG. 5 shows an example in which the convex part is used for a folded half roof. The woven fabric portion 4 is bonded to the top of the convex portion of the folded roof, and a portion 4a covers the peak leading to the top.
If the amount of water injected into the tube portion 3 is small, the tube portion does not swell greatly, and a flow of water flowing in the tube portion is formed with the extent of the extent shown in FIG. If the amount of water supplied is increased, the cylindrical portion 3 expands as shown in FIG. 5, and water oozes out, while fine jet water is irregularly formed. It is a watering method suitable for roof cooling in summer.
The woven fabric portion 4 diffuses water oozing from the weave of the yarn of the woven fabric while absorbing the water, and the entire surface of the woven fabric functions as a water supply surface.

FIG. 6 shows an example of a water supply tube having a woven fabric portion 4 that is longer than that of FIG. FIG. 7 shows an example of a folding half-roof with a spiral connection type in which the water supply tube is used. The folding half roof is provided with a concave valley and a ridge 10 of a spiral connection and an inclined side surface 11 located between the two.
FIG. 8 is a side view showing a state in which the folded half roof of FIG. 7 is covered with the woven fabric portion 4, and FIG. 9 is a perspective view thereof. The woven fabric portion 4 covers the roof material from the inclined side surface 11 to the ridge 10 and from the ridge 10 to the opposite inclined side surface 11 to form a continuous slope from the ridge 10 to the inclined side surfaces 11 on both sides.

  The tube portion 3 is located at the top of the ridge 10. As shown in FIG. 12, water is supplied to the tube portion 3 through the water supply means 5. Permeated through the woven fabric wall flowing in the tube portion 3 and outflowed into the woven fabric portion on both sides, the woven fabric portion impregnated with the outflow water and allowed to flow down along the slope, and the water fell in the valley of the folded roof Gathered and drained along the valley.

  FIG. 10 shows an example of a water supply tube in which a plurality of cylindrical portions 3 are arranged at intervals. The diameter, number, and interval of the cylindrical portions are selection items that can be arbitrarily determined according to the application. FIG. 11 shows a state laid on the slab surface on the building roof. When used for snow melting, when the diameter of the tube portion is 16 mm, the length is 6 meters, and the interval is 2 meters, for example, the amount of water supplied per tube portion is about 6 liters per minute.

  FIG. 13 shows a case where the water supply tube is used for soil. The woven fabric portion 4 of the water supply tube can be laid on the soil surface, but can also be embedded and installed as shown.

  As the woven fabric, for example, a spun yarn twill or plain woven fabric structure is used. In particular, in the woven fabric cloth where the tube portion is located, a thick cloth portion having poor water permeability located along the direction of movement of water and a thin cloth portion having high water permeability provided adjacent thereto are arranged in parallel. I can keep it. The thick cloth portion is rich in water retention, and the thin cloth portion is rich in water flow and allows more water to flow out than the thick cloth portion. In order to manufacture a thick cloth portion, for example, a twill weave structure can be used, and a plain cloth structure can be used for a thin cloth portion. The water permeability of the weave can be changed by appropriately selecting the yarn count and the number of twisted yarns. If necessary, a resin coat layer may be attached to a part of the outer surface of the water spray cloth tube.

  FIG. 14 shows an example in which a part or the whole of the longitudinal direction is covered with a mantle 30 made of a woven fabric of the same or different structure when forming the water-permeable tube portion 3 (FIG. 3). ing. By installing the mantle 30 along the entire length of the tube portion, it is possible to reduce the amount of water oozing, or to temporarily stock water inside the mantle and to spray water slowly over time. Become. FIG. 15 corresponds to FIG.

  In the example of FIG. 16, a wide mantle 30 encloses water and forms a water flow path on the roof convex portion. The cylinder portion 3 constitutes a water supply system for supplying water to the internal flow path. The woven fabric portion 4 can be hung on the inclined surface while being placed on the top of the convex portion of the folded roof. 17, FIG. 18, and FIG. 19 correspond to FIG. 10, FIG. 12, and FIG. 13, respectively.

  The snow-covered surface can be melted and / or cooled with a relatively small amount of water, so it is possible to use a well facility or boiler facility to create a large, large, folded roof with a length of tens of thousands of square meters, such as factories, station buildings, and public facilities. It can also handle cultivation facilities.

  An example of the woven fabric material which comprises a water supply tube is shown.   The state which bent the woven fabric of FIG. 1 is shown.   A part of the woven fabric is sewn or welded.   An example of a completed water supply tube is shown.   An example of the state which installed the water supply tube in the folding half roof is shown.   It is explanatory drawing which shows the example of a change of a water supply tube.   It is explanatory drawing which shows the folding half roof which installs the water supply tube of FIG.   It is a side view explaining the installation form of a water supply tube.   It is a perspective view which shows the external appearance of the folding roof which installed the water supply tube.   It is explanatory drawing which shows the other example of a water supply tube.   It is explanatory drawing which shows the specific example of the water supply tube laid in the sheet form.   An example of the water supply means connected to a cylinder part is shown.   It is explanatory drawing which shows the example which used the water supply tube for soil watering.   It is explanatory drawing which shows the example of a change of the water supply tube which formed the mantle.   It is explanatory drawing corresponding to FIG. 4 which shows the state which expanded the woven fabric part.   It is explanatory drawing which shows the usage example of the double water flow structure of a cylinder part and a mantle.   It is explanatory drawing corresponding to FIG.   It is explanatory drawing corresponding to FIG.   It is explanatory drawing corresponding to FIG.

Explanation of sign

DESCRIPTION OF SYMBOLS 1 Woven cloth cloth 2 Edge of cloth 3 Tube part 4 Woven cloth cloth part 30 Jacket

Claims (3)

  Folding the woven fabric, a water-permeable tube portion formed by sewing or welding the woven fabrics at a predetermined distance from the continuous side edge of the folded fabric, and this tube portion A continuous woven fabric portion, and these woven fabric portions are spread so as to cover the surface to be sprayed, and water that exudes from the weave of the yarn of the woven fabric in the cylindrical portion when water is passed through the cylindrical portion. A water supply tube in which the woven fabric portion absorbs water along the weaving yarn and diffuses to the surroundings to use the entire woven fabric as a water supply surface.   2. The water supply tube according to claim 1, wherein the cylindrical portion is disposed on the top of the convex portion or the ridge of the folding roof and the woven fabric portion is installed so as to cover the top of the convex portion or the top of the ridge. .   2. The water supply tube according to claim 1, wherein at least a part of the cylindrical portion is on the ground and the woven fabric portion is laid on a soil surface or is placed on top of soil.

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