JP3363026B2 - Mounting structure of corrugated plate to support material - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for attaching a synthetic resin corrugated sheet roofing material to a supporting material in a roof portion of a greenhouse for greenhouses and sun rooms, and in particular, when dew condensation occurs on the inner surface side of the corrugated sheet. Also, the present invention relates to a corrugated plate mounting structure that prevents water droplets due to dew condensation water from dripping into a greenhouse through a support material or the like.

[0002]

2. Description of the Related Art Conventionally, corrugated sheets and flat plates made of synthetic resin such as transparent polycarbonate, vinyl chloride resin, acrylic resin, and polyester resin have been used for daylighting in greenhouses for farming and cultivation, greenhouses for shiitake cultivation, solariums, etc. It is used as a roof material for automobiles, and in particular, many corrugated sheets that are lightweight and have excellent rigidity and impact resistance are used.

On the other hand, in greenhouses, houses, and solariums, dew condensation is likely to occur on the inner surface of the roof surface and the wall surface due to the temperature difference from the outside air, especially at night, and the generated dew condensation water causes the lower surface of the downward arc portion of the corrugated sheet to be condensed. It may accumulate in the greenhouse and drop as water droplets, or it may travel along the roof surface and accumulate in the main building and drip from the main building into the greenhouse.The water droplets of this dew condensation water may cause the growth of vegetables and flower seedlings. There is a problem that it causes inhibition and causes leaf rot and flower withering.

In order to prevent the dew condensation water from dripping at the contact portion between the purlin and the corrugated plate, for example, as shown in FIG. 7, a standard sealing material C formed by laminating a fiber assembly and a sealing material is corrugated. There is a structure in which the space between the downward arc portion of the plate A and the purlin B is filled to allow the fiber aggregate to absorb the condensed water, and the condensed water is discharged to the outside of the greenhouse by the capillary phenomenon of the fibrous material. Proposed.

[0005]

According to such a structure, the standard sealing material C, which is a laminate of the fiber aggregate and the sealing material, has a large thickness so as to be sealed along the uneven portions of the corrugated sheet A. It is necessary to use a standard sealing material C
Is expensive, and a plurality of sizes of the sealing material C are required depending on the type of the corrugated sheet A.

Further, since a large greenhouse has a large roof, the purlins B are arranged in parallel at a predetermined pitch and a plurality of corrugated sheets A are installed to form a greenhouse. It takes time and labor to arrange such a special sealing material C so as to completely seal the space between the corrugated sheet A and the purlin B, resulting in poor construction efficiency and high material cost. There was a problem.

Further, the water droplets accumulated on the lower surface of the downward arc portion of the corrugated plate A do not always flow to the purlin B, and the water droplets accumulate on the lower surface of the corrugated sheet A and reach the sealing material C of the purlin B. In addition, there is a problem that water droplets drop from the inner surface of the corrugated plate.

The present invention has been made in view of such a problem, and an object thereof is to allow condensed water generated on the lower surface of the corrugated plate to flow down to the eaves side without dropping, with a simple structure. An object of the present invention is to provide a structure for attaching the corrugated plate to the support member.

[0009]

In order to achieve the above object, the structure for attaching a corrugated sheet of the present invention to a supporting member is such that the length direction of the corrugated sheet is directed to the corrugated traveling direction of the synthetic resin corrugated sheet. In a corrugated plate mounting structure in which the above-mentioned synthetic resin corrugated plate is supported in a state of being inclined downward, a lower surface of the synthetic resin corrugated plate is made hydrophilic, and an upper surface of a support member is provided. A water-impermeable material protruding from the support material in the direction of inclination of the corrugated plate made of synthetic resin.
A strip-shaped thin sheet material is arranged, and the upper surface of this thin sheet material is brought into contact with the lower surface of the downward arc portion of the corrugated sheet, so that the corrugated sheet faces downward.
Condensed water flowing down along the above-mentioned hydrophilic layer on the lower surface of the arc portion.
Between the thin sheet material and the downward arc of this corrugated sheet.
It is configured to discharge to the lower side of the eaves through the gap .

That is, in the mounting structure of the corrugated plate of the present invention to the support member, by making the lower surface of the corrugated plate hydrophilic, the dew condensation water generated on the lower surface of the corrugated plate is caused to follow the downward arc portion and then the corrugated plate is formed. When the corrugated sheet is guided downward by the inclined surface of the corrugated sheet and reaches the vicinity of the upper surface of the supporting sheet, the thin sheet material and the lower surface of the corrugated sheet are brought together by capillary action without being transmitted to the supporting sheet, and the eaves tip of the corrugated sheet is gathered. It is designed to flow to the side and flow downward.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION As an embodiment of the present invention, the corrugated plate is
A resin formed of a transparent synthetic resin such as polycarbonate, polyvinyl chloride resin, acrylic resin, or polyester resin is used, and a vinyl alcohol resin, a cellulose triacetate resin, or a saponified resin thereof is formed on the entire lower surface of the corrugated plate. A hydrophilic resin layer made of an acetate resin, a resin containing a surfactant, or the like is provided and made hydrophilic. The hydrophilic resin layer may be formed by integrally laminating a hydrophilic resin film on the lower surface of the corrugated plate, or may be formed by applying a hydrophilic resin paint. Further, a hydrophilic agent such as a surfactant may be coated alone or with a binder, or the lower surface of the corrugated plate may be treated physically or chemically to make it hydrophilic.

On the other hand, the thin sheet material to be arranged on the support material may be a synthetic resin sheet material such as a polyvinyl chloride sheet, an acrylic sheet, a polycarbonate sheet or the like which is wider than the support material. It may be a metal plate. Alternatively, the thin sheet material may be bent into a waveform having the same shape as the waveform of the synthetic resin corrugated sheet, and the corrugated thin sheet material and the synthetic resin corrugated sheet may be in contact with each other. The protruding length of the thin-walled sheet material that is projected from the support material in the inclined direction of the corrugated plate may be a length that does not cause the thin-walled sheet material to sag. When dripping occurs, the dew condensation water that propagates through the thin sheet material will drip from the dripping tip. It is preferable that the thin sheet material has a projecting length of 3 to 30 mm and a thickness of 0.1 to 2.0 mm because it does not sag.

According to the structure for attaching the corrugated sheet to the support member as described above, when dew condensation occurs on the inner surface side of the corrugated sheet roof due to the temperature difference between the outside and the dew condensation water, the dew condensation water forms on the lower surface of the corrugated sheet. While being gathered along the lower surface of the downward arc portion of the corrugated plate by the hydrophilic layer that is attached, the condensed water that is gathered flows in the inclined direction of the corrugated plate without forming water droplets, When this condensed water reaches the supporting material portion, it does not flow to the supporting material side and is gathered by the capillary phenomenon between the downward arc portion of the corrugated plate provided with the hydrophilizing layer and the thin sheet material, and the downward arc portion. It can be discharged to the eaves side while flowing between the thin sheet material.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A concrete embodiment of the structure for attaching a corrugated plate to a support material according to the present invention will be described below with reference to the drawings. FIG. 1 shows a corrugated sheet used as a roofing material. The corrugated sheet main body 1 is formed of a translucent synthetic resin material such as polycarbonate, polyvinyl chloride resin, or acrylic resin.

The corrugated sheet body 1 is formed in a corrugated cross section in which upwardly curved arc portions 2, 2, 2 and downwardly curved arc portions 3, 3, 3 are continuously repeated. On the lower surface of the corrugated sheet body 1, a hydrophilic layer 4 made of a hydrophilic resin such as a vinyl alcohol film or a saponified film of cellulose triacetate is provided.

The hydrophilic layer 4 contains a polyvinyl alcohol resin, a cellulose acetate resin, a saponified resin thereof, a diacetate resin, a triacetate resin, or a surfactant such as sorbitan fatty acid ester or glycerin fatty acid ester. It may be formed by integrally laminating a hydrophilic resin film made of resin or the like on the lower surface of the corrugated plate body 1, or may be formed by applying a hydrophilic resin paint. Further, a surfactant or the like may be coated alone or together with a binder, or the lower surface of the corrugated plate may be physically or chemically treated to form it. The hydrophilic layer 4 is formed of a material having transparency that does not impair the translucency of the corrugated plate body 1.

The corrugated sheet body 1 is constructed by stacking a plurality of corrugated portions at the ends thereof and connecting them together, like a normal corrugated sheet roofing material, and supports the corrugated sheet body 1. The roof member is fixed to the supporting member 5 by bolting or the like, and the lengthwise direction of the upward arc portion 2 and the downward arc portion 3 is inclined downward.

The supporting member 5 is a main house or a side wall crosspiece arranged so as to be orthogonal to the rafter extending from the roof ridge toward the eaves, and indicates a main house in a greenhouse, a house or a solar room. The support member 5 is made of a steel material having a U-shaped cross-section that has been subjected to rust prevention, a resin-coated mold member, or the like. On the upper surface of the support member 5, as shown in FIG. 1
The width of the thin sheet material 6 is slightly wider than the width of the thin sheet material 6 and is adhered to the support material 5 over the entire length of the support material 5 with an adhesive or an adhesive material. The corrugated plate body 1 is supported by the support member 5 via the thin sheet member 6 in a state of being in contact with the lower surface of the downward arc portion 3 of the corrugated plate body 1.

The thin sheet material 6 has both end portions 6a, 6b.
Is mounted on the support material 5 in a state of protruding from both side ends of the support material 5.
It is necessary to prevent 6a and 6b from bending and hanging down,
For that purpose, although it depends on the thickness of the thin sheet material 6, it is desirable that the protruding length thereof, that is, the width of the both end portions 6a and 6b is set to about 3 to 30 mm, preferably about 5 to 15 mm. If the protrusion length is shorter than 3 mm, the condensed water M also hits the support member 5 and falls along the support member 5. Also, the protruding length is 30 mm
If it becomes above, the thin sheet material 6 will hang down, and the condensed water M will fall along the hung thin sheet material 6. Further, when the condensed water M propagating through the downward arc portion 3 of the corrugated plate body 1 hits the protruding end surface of the thin sheet material 6 in contact with the support material 5, if the thin sheet material 6 has a large thickness, the condensed water will be formed on the protruding end surface. The thickness of the thin-walled sheet material 6 is set to 0.1 to 2.0 mm, preferably 0.3 to 1.0 mm, since M may be accumulated and the diameter thereof may be increased and the weight thereof may cause it to fall.

The thin sheet material 6 may be made of the same material as the corrugated sheet body 1, such as a synthetic resin such as polycarbonate, vinyl chloride resin, acrylic resin, or the same metal as the support material 5, In the case of the thin sheet material 6 made of synthetic resin, it is adhered to the support material 5 by the adhesive or the double-sided adhesive tape as described above, and in the case of the thin sheet material made of metal, it is integrally welded on the support material 5. To be glued. From the viewpoint of light collection, it is preferably made of the above-mentioned synthetic resin having translucency.

As described above, in the roof structure of an agricultural greenhouse, various greenhouses, and sunrooms in which the corrugated sheet main body 1 is mounted on the support material 5 through the thin sheet material 6 fixed to the upper surface of the support material 5, A mechanism for discharging the condensed water when the condensation occurs will be described with reference to FIG. First, when the outside air temperature decreases at night, etc., and the water vapor pressure reaches the dew point in the greenhouse, especially near the inner surface of the corrugated plate, and dew condensation water is generated, the dew condensation water M adheres to the lower surface of the corrugated plate body 1 and is first turned upward. The dew condensation water of the arc portion 2 flows down to the downward arc portion 3 and further flows along the lower surface of the downward arc portion 3 in the direction of inclination of the roof, but the hydrophilic layer 4 is provided on the lower surface of the corrugated plate body 1. Since the condensed water is absorbed in the hydrophilic layer 4, the condensed water flows smoothly without forming a puddle or water drops on the way.

Thus, when the condensed water M flowing down the hydrophilic layer 4 on the lower surface of the downward arc portion 3 of the corrugated plate body 1 reaches the vicinity of the support member 5, the end face of the support member 5 is reached. Thin-walled sheet material 6 fixed on the support material 5 without abutting
And enters into the gap between the thin sheet material 6 and the downward arc portion 3 of the corrugated sheet body 1 by a capillary phenomenon, flows through the gap and passes over the support material 5, and again after passing through the gap. It is sucked up to the hydrophilic layer 4 side, transmitted along the lower surface of the downward arc portion 3, and discharged to the eaves side.

That is, once the thin sheet material 6 on the support material 5
The condensed water M guided by the capillary phenomenon between the corrugated plate body 1 and the downward arc portion 3 of the corrugated plate is prevented from staying by the hydrophilization layer 4, and continuously condensed along the lower surface of the downward arc portion 3. The roof material flows down toward the eaves in the direction of inclination.

The thin sheet material 6 may be non-hydrophilic or may have been subjected to a hydrophilic treatment, but if a hydrophilic layer, particularly a hydrophilic layer on the upper surface side is provided. The dew condensation water M flows more easily by the hydrophilization layer 4 provided on the corrugated plate body 1 side and the hydrophilization layer provided on the upper surface of the thin sheet material 6.

Further, in the above embodiment, the thin sheet material 6 is arranged in a state of being in close contact with the flat upper surface of the supporting material 5 entirely, but as shown in FIGS. Body 1
Alternatively, the mounting structure may be such that it is bent in a shape along the corrugated lower surface and the downwardly bent lower surface is received on the support member 5. According to this structure, when the condensed water M flowing down the lower surface of the downward arc portion 3 of the corrugated plate body 1 reaches the protruding end surface of the thin sheet material 6 protruding from the support material 5, the corrugated plate body 1
It penetrates into the gap between the downward arc portion 3 and the thin sheet material 6 by a capillary phenomenon, passes through the gap, and is discharged along the lower surface of the downward arc portion 3.

FIG. 6 shows the drainage structure at the lower inclined side of the corrugated sheet body 1, that is, at the eaves portion. A cushion material 7 such as foamed urethane is filled between the plate body 1 and the plate body 1. In this case, the support material 5
Since the condensed water M cannot flow down even if the flat thin sheet material 6 is laid directly on the thin sheet material 6, the thin sheet material bent in the same waveform as the corrugated sheet body 1 as shown in FIGS. 6 is arranged on the cushion material 7 along the lower surface of the corrugated plate body 1. With this configuration, the condensed water M
Is the corrugated thin sheet material 6 as described in FIGS.
Since it enters the gap between the corrugated sheet main body 1 and the corrugated sheet body 1 by the capillary phenomenon and flows, even if the cushion material 7 is present, it is discharged to the eaves. The hydrophilic layer 4 is provided on the lower surface of the corrugated plate body 1, and both side ends of the thin sheet material 6 are protruded in the width direction from both side ends of the support material 5 as in the above-described embodiment. is there.

[0027]

As described above, according to the present invention, the synthetic resin corrugated sheet is slanted downward on the support member whose length direction is directed to the corrugated traveling direction of the synthetic resin corrugated sheet. In a corrugated plate mounting structure that is supported, a hydrophilizing layer is provided on the lower surface of a synthetic resin corrugated plate, and the corrugated plate made of synthetic resin is projected on the upper surface of the supporting member in the inclined direction of the synthetic resin corrugated plate. Do
Since a non-water-permeable strip-shaped thin sheet material is arranged and the upper surface of this thin sheet material is brought into contact with the lower surface of the downward arc portion of the corrugated sheet, the lower surface of the corrugated sheet, which is the roof material, is affected by the temperature difference between the outside and the outside. If condensation occurs, with the dew condensation water can gather smoothly downward arc portion side by the hydrophilic layer of the lower surface of the wave plate, without jumble dew condensation water to form a large water droplets, further Can flow down along the downward arc portion of the corrugated plate without causing a pool, and can prevent condensed water from dripping directly from the corrugated plate.

Further, when the condensed water flows to the supporting material portion, it reaches the end surface of the thin sheet material protruding from the supporting material without coming into contact with the thick end surface of the supporting material and reaches the downward arc portion of the corrugated plate. Between the lower surface of the sheet and the thin-walled sheet material by a capillary phenomenon, and it is possible to circulate on the support material through this gap, preventing the dew condensation water from being retained in the support material portion and dew condensation water in the support material portion. Since it is prevented from dripping into the greenhouse, there is no risk of adversely affecting plants and the like.

As described above, when dew condensation occurs, large water droplets of dew condensation water are not formed on the lower surface of the downward arc portion of the corrugated plate, and dew condensation water does not collect in the support material portion. It smoothly flows down along the section and flows down the eaves and walls to the outside of the room, so it does not damage the plants in the greenhouse.

Further, since the hydrophilic layer is provided on the lower surface of the corrugated plate and the thin sheet material is interposed between the lower surface of the downward arc portion and the supporting material, a special sealing material is used. It does not need to be used, can be formed at low cost, and it does not require the preparation of a sealing material that matches the shape of the corrugated sheet, making it easy and inexpensive to use a greenhouse roof with a function to prevent condensation water from dripping. It has the effect that it can be formed into

[Brief description of drawings]

FIG. 1 is a partial perspective view of a corrugated plate used in the present invention,

FIG. 2 is a vertical sectional side view showing a mounting portion of a corrugated plate to a support member,

FIG. 3 is an enlarged front view showing a portion where the corrugated plate is attached to the support member,

FIG. 4 is a simplified vertical sectional side view showing another embodiment of the present invention,

FIG. 5 is its front view,

FIG. 6 is a simplified perspective view showing the drainage structure of the eaves part,

FIG. 7 is a simplified perspective view showing a conventional example.

[Explanation of symbols]

1 Corrugated plate body 2 upward arc 3 downward arc 4 Hydrophilization layer 5 Supporting material 6 thin sheet material M condensed water

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroshi Kageyama 2-3-13 Azuchi-cho, Chuo-ku, Osaka, within Takiron Co., Ltd. (56) Bibliographic references Sho 49-92616 (JP, U) 54-101021 (JP, U) Actual development Sho 59-146426 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) E04D 3/35 E04D 3/36

Claims (6)

(57) [Claims] 1. The synthetic resin corrugated sheet is downwardly placed on a support member whose length direction is directed to the corrugated traveling direction of the synthetic resin corrugated sheet.
In a corrugated plate mounting structure that is supported in a tilted direction , a hydrophilic layer is provided on the lower surface of the synthetic resin corrugated plate.
With that, it made the synthetic resin from the support member on the upper surface of the support member
A non-water-permeable strip-shaped thin sheet material that projects in the inclination direction of the corrugated sheet is arranged, and the upper surface of this thin sheet material is brought into contact with the lower surface of the downward arc portion of the corrugated sheet to form the lower surface of the downward arc portion of the corrugated sheet. upon
The dew condensation water flowing down through the hydrophilic layer is used for the thin sheet.
Under the eaves through the gap between the timber and the downward arc of this corrugated sheet
A structure for attaching a corrugated plate to a support member, which is configured to be discharged to the side . 2. The corrugated sheet according to claim 1, wherein the thin sheet material is a synthetic resin sheet material wider than the width of the supporting material, and is fixed to the upper surface of the supporting material. Mounting structure. 3. The corrugated sheet supporting material according to claim 1, wherein the thin sheet material is made of a metal plate wider than the width of the supporting material, and is integrally fixed to the upper surface of the supporting material by welding. Mounting structure. 4. The thin sheet material is bent in a corrugated shape in the same shape as the corrugated sheet of the synthetic resin corrugated sheet, and the corrugated thin sheet material and the synthetic resin corrugated sheet are in contact with each other. Item 1. A structure for mounting a corrugated plate according to Item 1 on a support member. 5. The structure for attaching a corrugated plate to a support material according to claim 1, wherein the thin sheet material has a thickness of 0.1 to 2.0 mm. 6. The corrugated plate according to claim 1, wherein the thin sheet material is projected from the support material by 3 to 30 mm. Construction.