JPH08260739A - Membranous structure for sports facilities - Google Patents

Abstract

PURPOSE: To provide sports facilites of good ventilation and softly transmitting the sunlight by constituting the roof and the wall out of membranous material having specified total light transmittance, and constituting the circumferential part out of membranous material having opening parts so as to open. CONSTITUTION: By the use of a composite membranous material in which cloth made of polyethylene-terephthalate fiber is coated with semitransparent polyinyl chloride resin, and the total light transmitance is in the range of 14-70%, an arch-shaped skelton is coated from one end part to the other end. This membranous structure for sports facilities is built over a tennis court, and the faces corresponding to the lateral direction of the court are not developed with the membranous material so as to be the opened construction. Hereby, it is well- ventilated and cool by a shade in summer, and in winter the sunlight is properly transmitted so as to be warm, and hence tennis can be comfortably played.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a building for a bright sports facility which is well ventilated and allows sunlight to pass therethrough, and more particularly to a membrane for sports facility which is preferably used for a tennis court. Regarding the structure.

[0002]

2. Description of the Related Art Conventionally, a building covering a tennis court has been built so that sports such as tennis can be played even in the rain. In particular, the membrane structure made of membrane material is
It is often used as a sports facility, especially as a tennis facility because of its light roof that allows a large span between pillars and the short construction period.

[0003]

However, since the inside of the structure is dark on a cloudy day, etc., the film structure made of these film materials requires illumination even in the daytime, and further has a low heat insulation performance. In summer, etc., there was a drawback that the inside of the structure was hot. In addition, for the purpose of eliminating this drawback, a membrane structure having a wall opened is also known, but in this case,
It had the drawback of being cool in summer but cold in winter.

The object of the present invention is to cool the summer, warm the winter, no lighting is required, the ventilation is good, the sun rays are softly transmitted, and the membrane structure for sports facilities is bright and clean, especially, It is intended to provide a facility membrane structure suitable for a tennis court.

[0005]

Means for Solving the Problems The constitution of the membrane structure for sports facilities of the present invention which achieves the above-mentioned object of the present invention is as follows.

That is, the film structure for sports facilities of the present invention is a structure composed of a film material having a total light transmittance in the range of 14 to 70% and a skeleton, and an arcuate opening at the periphery. It is characterized in that it is composed of a film material having.

[0007]

As the skeleton (frame body) assembled from the structural material for construction used in the present invention, in addition to trusses and lattices made of steel, steel for construction structure, reinforced concrete, steel reinforced concrete, laminated wood, aluminum pipe, etc. are used. You can do it.

A feature of the present invention is that it is a film material having a specific total light transmittance, which constitutes a roof and a wall.
A peripheral portion corresponding to a wall formed of the film material is formed by a film material having an opening and is open. That is, by adopting such a configuration, it is possible to provide a sports facility that is well ventilated, allows sunlight to pass through softly, does not have a sweat odor, and is bright, cool, and clean.

In the present invention, such a well-ventilated structure is composed of a plurality of skeletons having an arc-shaped structure, and preferably the arc-shaped skeletons are arranged in parallel. As a result, a structure having an opening in the periphery can be obtained.

As the film material used for the roof and the wall, a composite material obtained by coating a resin on a sheet, such as a film, a woven fabric, a knitted fabric and a non-woven fabric, is used as long as it satisfies the total light transmittance. it can. Fibers constituting the sheet-like material include glass fiber,
High strength, heat resistant fibers having excellent weather resistance are preferably used, such as aramid fibers, polyphenylene sulfide fibers and polyester fibers. Further, as the resin to be composited with the sheet-like material, for example, fluororesin, vinyl chloride resin, chloroprene rubber, chlorosulfonated polyethylene rubber, acrylic resin, and the like, and those similar to them are used. Such a resin is compounded in the above-mentioned sheet material by at least one method selected from methods such as impregnation, coating and laminating. Among these composite membrane materials, for example, a combination of a glass fiber woven fabric coated with a fluororesin, a polyester fiber, a glass fiber woven fabric coated with a vinyl chloride resin, and the like are preferable.

As such a film material, for example, a sheet in which a surface layer (B) made of a thermoplastic resin is laminated on the surface of a base material layer (A) made of a thermoplastic resin can be used.

The thermoplastic resin referred to here is a resin containing various additives, such as polyolefin resin, fluorine resin, vinyl chloride resin, and SBR, NBR, polyamide having rubber elasticity. Elastomers such as resin and polyester resin can be used. Of these, vinyl chloride resins are typical, and will be described below by representing them.

The vinyl chloride resin referred to here is a vinyl chloride polymer, a vinyl chloride-vinyl acetate copolymer, a vinyl chloride-acrylic acid ester copolymer, or a vinyl chloride-
Vinylidene chloride copolymer, etc., which are used alone or in admixture of two or more kinds with additives such as plasticizer, stabilizer, filler, antioxidant, weathering agent, flameproofing agent, etc. can do. The vinyl chloride resin has an average degree of polymerization of 600 to 3500, preferably 800 to 2500.

As the plasticizer, those generally used can be used. For example, phthalic acid ester-based, aliphatic dibasic acid-based ester, epoxy-based, phosphoric acid ester-based, polyester-based, trimellitic In addition to the acid type, it is possible to use a pyromellitic acid type such as 2-ethylhexylpyromellilate, a biphenyl tetracarboxylic acid ester type, and the like. If these are used alone or as a mixture, a soft vinyl chloride resin, vinyl chloride is used. Resin 1
It is usually used in an amount of 30 to 10 parts by weight based on 00 parts by weight. Further, ethylene-vinyl acetate copolymers, ethylene-acrylic acid ester copolymers generally used for non-plasticizing purposes, and ELVALO in which carbon monoxide is introduced into these copolymers.
Y (manufactured by Mitsui DuPont Polychemical Co., Ltd.), chlorinated paraffin and the like can also be used, and usually 50 to 120 parts by weight are used with respect to 100 parts by weight of the vinyl chloride resin.

Stabilizers and stabilizing aids may be added to the thermoplastic resin. Examples thereof include calcium-zinc type, calcium-zinc organic composite type, organic tin laurate, organic tin mercaptite, and organic tin octyl. A single or a mixture thereof is used in an amount of 0.1 to 10 parts by weight based on 100 parts by weight of the vinyl chloride resin. Further, a filler can be blended, for example, 3 to 25 parts by weight of silica, talc, calcium carbonate, magnesium carbonate, barium sulfate, calcium phosphate, etc., alone or mixed with 100 parts by weight of vinyl chloride resin. use. When an antioxidant is added, 2,6-di-t-butyl-methylphenol, dilaurylthiodipropionate and the like are added to 100 parts by weight of the vinyl chloride resin in an amount of 0.
05-2.5 parts by weight are used. When blending a weatherproofing agent, a triazole-based UV absorber, a benzophenone-based UV absorber, a hydroquinone-based UV absorber, a salicylic acid-based UV absorber, or the like can be used, and these can be used alone or as a mixture of vinyl chloride-based It can be used by adding 0.25 to 3 parts by weight to 100 parts by weight of the resin. Further, if necessary, 0.1 to 1 part by weight of an antioxidant may be added to 100 parts by weight of vinyl chloride resin before use.

If necessary, a flameproofing agent such as antimony trioxide or tricresyl phosphate may be added in an amount of 3 to 10 parts by weight based on 100 parts by weight of the vinyl chloride resin. Other antifungal agents such as 2,4,5,6-tetrachloroisophthalonitrile, 10,10 'oxybisphenoxyarsine, phthalocyanine blue, phthalocyanine glane, alizarin lake, titanium oxide, zinc white, carbon black 0.001 to 2 parts by weight with respect to 100 parts by weight of a vinyl chloride resin,
0.001 to 1 part by weight may be added. In addition,
The external compounds exemplified here may be added if necessary.

Base material layer (A) made of such a thermoplastic resin
In the laminated sheet of the surface layer (B) and the skin layer (B), the numerical value (hardness) measured with a Shimadzu dynamic ultra-micro hardness meter DUH-200 type triangular pyramid indenter 115 ° is the surface of the base material layer (A). By joining the thermoplastic resin skin layer (B) having a surface hardness larger than that of the resin of the base material layer, a laminated sheet excellent in antifouling property can be provided.

That is, in such a film material, the surface hardness of the base material layer (A) and the skin layer (B) is 0.2 or less for the base material layer (A) and 0.2 for the skin layer (B). Is beyond. The base material layer (A) is a conventional soft vinyl chloride resin,
As an example of di-2-ethylhexyl phthalate (DOP) which is generally used as a plasticizer, 40 parts by weight added to 100 parts by weight of vinyl chloride resin is about 0.
2, the hardness is 0.15 or less in consideration of the flexibility required for the base material layer. Contamination of the base material layer (A),
The hardness of the skin layer (B), which obviously improves the antifouling property, is 0.2 or more, preferably 0.35 or more, larger than that of the base material layer (A). Further, the hardness of the skin layer (B) is 0.5 or more,
When it is preferably 0.6 or more, an extremely excellent antifouling function is exhibited. The amount of plasticizer in such a laminated sheet depends on the skin layer (B).
Is less than the base material layer (A). For example, when the amount of the plasticizer is 100 parts by weight of the vinyl chloride resin, when the plasticizers are the same, di-2-ethylhexyl phthalate (DOP): When the base material layer (A) is 50 parts by weight, the skin layer (B) is 35 parts by weight or less, preferably 30 parts by weight or less. When the plasticizer is tetraoctylpyromellimate, when the base material layer (A) is 65 parts by weight, the skin layer (B) is 45 parts by weight or less, preferably 40 parts by weight or less.
It is less than or equal to parts by weight.

The base layer (A) and the skin layer (B) of the laminated sheet may have different types of plasticizers. In this case, it is preferable to use a pyromellitic acid ester type or a trimellitic acid ester type or a polyester type for the base material layer (A) and a phthalic acid ester type for the skin layer (B). The temperature at which the sheet is used when the amount of tetraoctylpyromellimate in (A) is 65 parts by weight and the amount of di-2-ethylhexyl phthalate (DOP) in the skin layer (B) is 35 parts by weight or less, preferably 30 parts by weight or less, It can exhibit excellent antifouling properties that are not easily affected by the environment such as humidity. As long as a plasticizer is used, migration of the plasticizer between the base material layer (A) and the skin layer (B) is unavoidable. Therefore, migration from the base material layer (A) to the skin layer (B) is prevented as much as possible. Therefore, it is important to maintain the hardness of the skin layer (B), and for that purpose, it is effective to change the kind of the above-mentioned plasticizer. Further, an ethylene-vinyl acetate copolymer, an ethylene-alkyl acrylate copolymer as a plasticizing component, and an ELV in which carbon monoxide is introduced into these copolymers.
When non-plasticizing polymers such as ALOY (manufactured by Mitsui DuPont Polychemical Co., Ltd.) and chlorinated paraffin are used, an extremely stable laminate can be formed because there is no concern about migration of the plasticizer. For example, ELVAL
When OY-HP533 (ethylene-alkyl acrylate copolymer system) is used, when 100 parts by weight of the base material layer (A) is blended, the skin layer (B) is 70 parts by weight or less, preferably 50 parts by weight or less. The laminated film material formed by blending has no migration of the plasticizer, and therefore can maintain excellent antifouling property. In such a film material, those having different average polymerization degrees of the vinyl chloride resin of the base material layer (A) and the skin layer (B) are used, and preferably those having a high polymerization degree are used for the skin layer (B). Is preferred. With this configuration, the base material layer (A)
And the skin layer (B) have the same degree of polymerization, the skin layer (B)
It becomes easy to maintain the hardness of. The difference in the degree of polymerization is preferably 500 or more, more preferably 800 or more.
The thickness of the skin layer (B) of the film material is 5 to 300 µ, preferably 10 to 200 µ, more preferably 30 to 100 µ.
Is. The skin layer may be composed of at least one or more layers.

In such a membrane material, it is often used as a material reinforced with a fiber base cloth rather than being used as a joined body of the base material layer (A) and the skin layer (B). Such a fiber base cloth is a knitted or woven fabric in which synthetic fibers such as polyester, polyamide and vinylon, and natural fibers such as cotton and hemp are used alone or in combination, and the fibers may be long fibers or short fibers.

In the production of such a membrane material, after the base material layer (A) is attached to the fiber base cloth, the skin layer (B) is bonded, or the base material layer (A) and the skin layer (B) are joined together. There is no particular limitation as long as they are bonded to a fiber base cloth. In the production of the laminate, an adhesive method, a thermocompression bonding method under pressure, a laminator method, an extrusion laminator method, and the like can be used, but are not limited to these, but the base material layer is a fiber base cloth. It is preferable to coat (A) and laminate the surface with the skin layer (B).
Furthermore, the surface of the laminated sheet is treated with a pressure body having irregularities,
The surface may be shaped.

The film structure for sports facilities of the present invention is composed of a film material having a specific total light transmittance in order to achieve the above effects. That is, the membrane material of the present invention is JIS K-7105
Based on, Suga Test Instruments Co., Ltd., total light transmittance measured by the measurement method using a haze meter, that is, using a halogen lamp as a light source of the haze meter, parallel light transmittance and diffuse light transmittance respectively The total measured value is in the range of 14 to 70%, preferably 20 to 35%. If it is less than 14%, there is little sunlight transmission, and on a cloudy day there is a drawback that lighting is required. If it is more than 70%, there is too much sunlight transmission,
You can no longer achieve the cool effect in summer. In particular, as a ball game facility, the sun feels dazzling when it is larger than 35%. Especially when performing a serve in tennis, the ball with a raised toss feels dazzling to the sun.

As is clear from the above description, the membrane structure for sports facilities according to the present invention is most preferable when it is constructed on a tennis court, and the floor surface of the tennis court is artificial turf. Is preferred. The reason is that although the total light transmittance of the film material used is set to be high, it is not sufficient for the growth of natural grass. Particularly preferably, artificial grass containing sand is preferably used.

[0024]

EXAMPLES The present invention will be described in more detail below with reference to examples.

Example 1 A membrane structure for sports facilities shown in FIG. 1 was constructed.

As a framework, a steel truss structure is selected,
It has an arched shape. A film material having a total light transmittance of 21% was spread on the arch-shaped roof portion. The membrane material is a composite membrane material in which a woven fabric made of polyethylene terephthalate fiber is coated with translucent vinyl chloride resin. Using this membrane material, an arch-shaped frame was covered from one end to the other end as shown in FIG. This sports facility membrane structure was constructed on a tennis court, and the corresponding lateral surface of the court was open without spreading the membrane material. An artificial grass containing sand was laid on the floor of the tennis court. The end of the skeleton was wrapped with a cushioning material to provide a shock absorbing function.

The membrane structure for sports facilities according to Example 1 had good ventilation in the summer and had a total light transmittance of 21.
%, It was cool due to the shade, and it was warm in winter because it penetrated as much as 21% of the sun's rays, so no lighting was required even on cloudy days. Furthermore, even if he raised the toss of the serve during tennis play, he could play comfortably without feeling the glare from the sun.

As a skeleton, a steel truss structure is selected,
It has an arched shape. A film material having a total light transmittance of 21% was spread on the arch-shaped roof portion. The membrane material is a composite membrane material in which a woven fabric made of polyethylene terephthalate fiber is coated with translucent vinyl chloride resin. Using this membrane material, an arch-shaped frame was covered from one end to the other end as shown in FIG. This sports facility membrane structure was constructed on a tennis court, and the corresponding lateral surface of the court was open without spreading the membrane material. An artificial grass containing sand was laid on the floor of the tennis court.

The membrane structure for sports facilities according to Example 1 had good ventilation in the summer and had a total light transmittance of 21.
%, It was cool due to the shade, and it was warm in winter because it penetrated as much as 21% of the sun's rays, so no lighting was required even on cloudy days. Furthermore, even if he raised the toss of the serve during tennis play, he could play comfortably without feeling the glare from the sun.

Example 2 A membrane structure for sports facilities having the structure shown in FIG. 1 was prepared by the same method and conditions as in Example 1, except that only the membrane material was replaced with the following composite membrane material.

First, the warp and weft yarns have a denier of 9
A plain woven fabric using 6-filament polyethylene terephthalate fiber (manufactured by Toray Industries, Inc.) was scoured, dried and heat set by a conventional method. The total transmittance of this woven fabric was 59%.

On both sides of the woven fabric, a layer of the following tarpaulin vinyl chloride resin composition having a thickness of 0.23 mm
Tarpaulins were produced by coating at a temperature of ℃ by the calendar method. Here, the surface exposed to the outside air is the surface,
The interior side is the back side. Then, on the surface side of this tarpaulin, a film made of a vinyl chloride resin composition having the following skin was heat laminated at a temperature of 150 ° C.

(Tarporin vinyl chloride resin composition) 65 parts by weight of ADEKA CIZER PN1430 (polyester plasticizer: Asahi Denka Kogyo Co., Ltd.) as a plasticizer per 100 parts by weight of vinyl chloride resin having an average degree of polymerization of 1000
7 parts by weight of antimony trioxide (average particle size 7 μm), 0.8 parts by weight of TINUVIN P (benzotriazole type: manufactured by Nippon Ciba-Geigy Co., Ltd.) as an ultraviolet absorber, Chimassorb 944 (hindered amine type: Nippon Ciba-Geigy Co., Ltd.) as a light stabilizer 0.2 parts by weight) and 5 parts by weight of zinc borate as a flame retardant were used.

(Vinyl chloride resin composition of skin) 20 parts by weight of di-2-ethylhexyl phthalate as a plasticizer and Tinuvin P (benzotriazole type: as a plasticizer) per 100 parts by weight of vinyl chloride resin having an average degree of polymerization of 1000: 1.0 part by weight of Nippon Ciba-Geigy Co., Ltd., 0.5 part by weight of Ubinal N539 (hindered amine system: manufactured by Nippon Ciba-Geigy Co., Ltd.), 0.2 parts by weight of Kimasorb 944 (hindered amine system: manufactured by Nippon Ciba-Geigy Co., Ltd.) as a light stabilizer. Parts of each,
A film having a thickness of 50 μm was used.

The total light transmittance of the obtained film material was 41%.

Since the membrane structure for sports facilities according to the second embodiment has a slightly higher total light transmittance than that of the first embodiment,
Although different in terms of brightness, other performances and functions were the same, that is, even if the toss of the serve was raised during tennis play, the player could play comfortably without feeling the glare from the sun.

Examples 3 and 4 Plain woven fabrics using 96 denier, 96 filament polyethylene terephthalate fibers (made by Toray Industries Inc.) for warp and weft were scoured, dried and heat set by a conventional method. The base material layer (A) was coated on both sides of the woven fabric with the resin composition shown below at a temperature of 180 ° C. by a calendar method.

(Base material A) Vinyl chloride resin (average degree of polymerization: 1000) 100 parts by weight Di-2-ethylhexyl phthalate 50 Cd-Zn stabilizer 3 Calcium carbonate 10 Titanium oxide 7 Skin material shown below on both sides of the sheet Two kinds of film (B) were thermocompression bonded at 180 ° C.

[Surface material B: film thickness 40 μ] (Skin composition) Vinyl chloride resin (average degree of polymerization: 1000) 100 parts by weight di-2-ethylhexyl phthalate 10 epoxidized soybean oil 6 Ba—Zn stabilizer 3 MBS resin 10 [Surface material C: film thickness 100 μ] (Skin composition) 30 parts by weight of di-2-ethylhexyl phthalate having the above skin composition was used.

The total light transmittance of the obtained film material is shown in Example 3.
And A / C of Example 4 were 40% and 45%, respectively. All of them were bright sports facilities and allowed us to play comfortably without feeling the glare of the sun.

[0041]

EFFECTS OF THE INVENTION The present invention having the above-mentioned structure has the following excellent effects.

(1) It is possible to play cool in summer and warm in winter.

(2) No lighting is required even on a cloudy day.

(3) The sun is not dazzling even when playing tennis and raising the toss in the serve.

[Brief description of drawings]

FIG. 1 is a diagram showing an example of a membrane structure for sports facilities of the present invention.

[Explanation of symbols]

 1: Arch-shaped framework 2: Roof made of membrane material 3: Membrane material part having openings (corresponding to the wall) 4: Sand floor artificial tennis grass surface

Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location B32B 27/30 B32B 27/30 D 101 101 101 27/36 27/36 E04B 1/32 101 7121-2E E04B 1 / 32 101A E04H 15/54 E04H 15/54

Claims (19)

[Claims] 1. A film for sports facilities, which is a structure comprising a film material having a total light transmittance of 14 to 70% and a skeleton, and having an arcuate opening in the periphery. Structure. 2. The membrane structure for sports facilities according to claim 1, wherein the openings are present in at least two opposing surfaces. 3. The membrane structure for a sports facility according to claim 1, wherein the framework of the membrane structure has a structure formed by connecting a plurality of arcuate frameworks. 4. The membrane structure for sports facilities according to claim 3, wherein the arcuate frameworks are arranged in parallel. 5. The film structure for sports facilities according to claim 1, wherein the film material has a total light transmittance of 20 to 35%. 6. A membrane structure for sports facilities, wherein artificial turf is laid on the floor surface of the membrane structure for sports facilities according to claim 1. 7. The membrane structure for sports facilities according to claim 1, wherein the membrane structure for sports facilities is constructed on a tennis court. 8. The membrane structure for a sports facility according to claim 1, wherein the frame is covered with a cushioning material or a cushioning material at an end portion. 9. The membrane structure for sports facilities according to claim 1, wherein the membrane material is a composite membrane of a high-strength fiber cloth and a resin. 10. The membrane structure for sports facilities according to claim 9, wherein the high-strength fiber is at least one selected from glass fiber, aramid fiber, polyphenylene sulfide fiber and polyester fiber. 11. The resin is at least one selected from fluororesins, vinyl chloride resins, chloroprene resins and chlorosulphonated polyethylene resins.
The membrane structure for a sports facility described. 12. The membrane material is a sheet in which a surface layer (B) made of a thermoplastic resin is laminated on the surface of a base material layer (A) made of a thermoplastic resin, which is Shimadzu Dynamic manufactured by Shimadzu Corporation. Using an ultrafine hardness tester DUH-200 type triangular cone indenter 115 °, the temperature was 25 ° C., the humidity was 65% RH, the load was 0.1 mg, the indentation rate constant was 10, and the holding time was 5 seconds. The membrane structure for sports facilities according to claim 1, wherein the dynamic hardness of the thermoplastic resin is 0.2 or more greater in the skin layer (B) than in the base material layer (A). 13. The membrane structure for sports facilities according to claim 12, wherein the thermoplastic resin is a vinyl chloride resin. 14. The membrane structure for sports facilities according to claim 12, wherein the amount of the plasticizer compounded in the skin layer (B) is smaller than that in the base material layer (A). 15. The membrane structure for sports facilities according to claim 14, wherein the amount of the plasticizer compounded with respect to 100 parts by weight of the resin of the skin layer (B) is 5 parts by weight or more less than that of the base material layer (A). 16. The plasticizer blended in the base material layer (A) and the skin layer (B) are of different types.
The membrane structure for a sports facility described. 17. The membrane structure for sports facilities according to claim 12, wherein the average degree of polymerization of the thermoplastic resin of the skin layer (B) is larger than that of the base material layer (A). 18. A sheet in which an acrylic resin is laminated as a skin layer (B) on at least one surface of the base layer (A), wherein the plasticizer of the base layer (A) is pyromellitic acid-based, The membrane structure for sports facilities according to claim 12, which is at least one selected from a meritic acid type and a polyester type. 19. The non-plasticizing ethylene-vinyl acetate copolymer, ethylene-acrylic acid ester copolymer, or ELVALO in which carbon monoxide is introduced into these plasticizers.
13. The membrane structure for sports facilities according to claim 12, which is at least one selected from Y (manufactured by Mitsui DuPont Chemical Co., Ltd.) and chlorinated paraffin.