JPH0691766A - Surfboard and manufacture thereof - Google Patents

Surfboard and manufacture thereof

Info

Publication number
JPH0691766A
JPH0691766A JP27118792A JP27118792A JPH0691766A JP H0691766 A JPH0691766 A JP H0691766A JP 27118792 A JP27118792 A JP 27118792A JP 27118792 A JP27118792 A JP 27118792A JP H0691766 A JPH0691766 A JP H0691766A
Authority
JP
Japan
Prior art keywords
surfboard
sheet
molding
molded
stretchability
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP27118792A
Other languages
Japanese (ja)
Inventor
Tamotsu Kawai
保 河合
Kinzo Masuda
欣三 増田
Masao Ando
正夫 安藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kanegafuchi Chemical Industry Co Ltd
Original Assignee
Kanegafuchi Chemical Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kanegafuchi Chemical Industry Co Ltd filed Critical Kanegafuchi Chemical Industry Co Ltd
Priority to JP27118792A priority Critical patent/JPH0691766A/en
Publication of JPH0691766A publication Critical patent/JPH0691766A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined

Landscapes

  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)

Abstract

PURPOSE:To impart an external appearance which is not seen on a prior art surfboard, to impart colorful change and high-grade feeling, to improve the sense of touch, to simultaneously enhance a reinforcing effect, and to eliminate trimming by a prior art film coating, etc. CONSTITUTION:The surfboard comprises a board body 1 made of foamed molded form by foam molding in a mold, and a sheetlike material 5 having stretchability on its surface and integrally covering the surface of the body 1 through a molten layer. The method for manufacturing the same comprises the steps of covering one or both surfaces of the body 1 with the material 5 having stretchability, containing it in molds 6, 7, melting the surface of the foamed molded form 1 by a hot molding press, and shaping the material 5 to be integrated.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明はサーフインに用いるサー
フボードならびにその製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surfboard used for surfing and a method for manufacturing the same.

【０００２】[0002]

【従来の技術】サーフインは現在、海上スポーツとして
多くの人に親しまれ、実施されているが、このサーフイ
ンに使用する用具としてサーフボードには種々の形態の
ものが作られている。サーフボードは一般に曲線部分と
直線部分によって形成され、スピード性と回転性のバラ
ンスがとられているが、その本体は通常、プラスチック
発泡材を成形加工し、その表面をグラスファイバ等の強
化プラスチックで覆って補強したもの等によって形成さ
れており、紫外線吸収性に富むポリエステルフイルムに
アルミニウム蒸着を施した保護フイルムで覆うことによ
りサーフボード本体の傷付を防止し、模様などの褪色を
防いでいる。（例えば実公昭６３−９３２８号公報参
照）2. Description of the Related Art Currently, surfins are popular and practiced by many people as a maritime sport, and various types of surfboards have been made as tools used for this surfin. A surfboard is generally formed by curved and straight parts to balance speed and rotation, but its body is usually molded from plastic foam and its surface is covered with reinforced plastic such as glass fiber. The surfboard body is protected from scratches and the fading of patterns is prevented by covering it with a protective film made of aluminum vapor-deposited polyester film, which is highly absorbent of ultraviolet rays. (For example, see Japanese Utility Model Publication No. 63-9328)

【０００３】[0003]

【発明が解決しようとする課題】ところが上記の如きサ
ーフボード本体は保護フイルムなどで覆うにあたっては
ボード本体の外周に余分に保護フイルムがはみ出し、こ
れを除去すべくトリミング作業を行なわなければならな
い難を有している。However, when the surfboard body as described above is covered with a protective film or the like, an extra protective film sticks out to the outer periphery of the board body, and trimming work must be performed to remove it. is doing.

【０００４】本発明は上述の如き実状に対処し、素材に
発泡成形体をとり入れると共にその外装化の簡便な手段
を見出すことにより、従来のサーフボードに見られない
外観を与え、多彩な変化と高級感を付与し、触感を良好
ならしめ、同時に補強効果を高めると共に、従来のフイ
ルム覆装などによるトリミングを不要ならしめることを
目的とするものである。The present invention addresses the above-mentioned situation, and by incorporating a foamed molded product into a material and finding a simple means for packaging the foamed molded product, it gives an appearance not seen in conventional surfboards, and various changes and high grades are provided. The object is to impart a feeling, to make the touch feeling good, to enhance the reinforcing effect at the same time, and to eliminate the need for trimming by the conventional film covering.

【０００５】[0005]

【課題を解決するための手段】即ち、上記目的に適合す
る本発明の特徴はその１つはサーフボード自体に関し、
その表面に伸張性を有するシート状物を被覆外装せしめ
ることである。また、本発明はボード本体を型内発泡成
形による発泡成形体となし、その表面に前記伸張性を有
するシート状物をボード本体表面の溶融層を介し一体的
に被着せしめたことである。That is, one of the features of the present invention which meets the above-mentioned object is one of which relates to the surfboard itself,
That is, the surface of the sheet is coated with a stretchable sheet-like material. Further, according to the present invention, the board main body is formed as a foamed molded product by in-mold foam molding, and the sheet-like material having the above-mentioned extensibility is integrally attached to the surface thereof via the molten layer on the surface of the board main body.

【０００６】次に本発明は上記サーフボードを製造する
ための方法に係り、型内発泡成形により成形されたサー
フボード本体に伸張性を有するシート状物をその片面又
は両面に被着し、成形型内に収納して加熱成形プレスに
より発泡成形体の表面を溶融せしめると共に、被着シー
ト状物を賦形一体化せしめることを特徴とする。更に本
発明はより具体的に型内発泡成形により成形されたサー
フボード本体外面に伸張弾性糸を含み筒状又は袋状に形
成してなる繊維布をかぶせ、成形型内に収納して加熱成
形プレスによりボード本体表面を溶融せしめると共に被
着繊維布を該ボード本体に一挙に被着一体化せしめるこ
とを特徴とする。Next, the present invention relates to a method for producing the above surfboard, in which a surfboard body molded by in-mold foam molding is coated with a sheet-like material having stretchability on one side or both sides of the surfboard body, and It is characterized in that the surface of the foamed molded product is melted by a heat molding press and the adhered sheet-like material is shaped and integrated. More specifically, the present invention more specifically covers the outer surface of the surfboard body molded by in-mold foam molding with a tubular or bag-shaped fiber cloth containing stretchable elastic yarns, and stores the cloth in a molding die to form a hot molding press. Is characterized in that the surface of the board body is melted and the fiber cloth to be adhered is integrally adhered to and integrated with the board body at once.

【０００７】また本発明はボード本体の表面あるいは伸
張性を有するシート状物の何れか又は双方に接着剤を塗
布してシート状物をボード本体に被着し、加熱成形プレ
ス又は常温成形プレスにより一体化せしめることも特徴
とする。Further, according to the present invention, an adhesive is applied to either or both of the surface of the board body and the sheet-like material having extensibility, and the sheet-like material is adhered to the board body. It is also characterized by being integrated.

【０００８】[0008]

【作用】上記サーフボードはその外観が美麗となり、種
々のシート状物を選択することによりボードの意匠効果
を高め補強効果を良好ならしめる。殊に被着シート状物
は伸張性を有するため、被着に際し、伸張状態におかれ
るため皺を生ずることなく被着し得る。The above-mentioned surfboard has a beautiful appearance, and by selecting various sheet-like materials, the design effect of the board is enhanced and the reinforcing effect is improved. In particular, since the adhered sheet-like material has extensibility, it can be adhered without wrinkles because it is put in an expanded state when adhered.

【０００９】また上記サーフボードの製造にあたっては
一般的な加熱又は常温プレス成形が使用され、これは伸
張性を有するシート状物あるいは繊維布と相俟って成形
作業を簡易ならしめる。とりわけ筒状又は袋状に形成し
た編織布をボード本体にかぶせこれらを成形型内に収納
して一挙に発泡成形体表面の溶融層を介して被着一体化
せしめることは最も簡単であり、生産性を高める。Further, in the manufacture of the above surfboard, general heating or normal temperature press molding is used, which facilitates the molding operation in combination with a sheet-like material or fiber cloth having stretchability. In particular, it is the simplest to cover a board body with a knitted or woven fabric formed into a tubular shape or a bag shape, store these in a molding die, and apply them all at once through the molten layer on the surface of the foamed molded article, thereby producing the product. Improve sex.

【００１０】[0010]

【実施例】以下、更に添付図面により本発明の実施例を
説明する。Embodiments of the present invention will be described below with reference to the accompanying drawings.

【００１１】図１は本発明に係るサーフボード本体の平
面図であり、図２は側面図である。FIG. 1 is a plan view of a surfboard body according to the present invention, and FIG. 2 is a side view.

【００１２】これら図において（１）はサーフボード本
体、（２）は先端のノーズ、（２′）はリューシュカッ
プ、（３）は両サイドのレールを示し、裏側には図２に
見られる如く通常のように後方にフイン（４）が設けら
れていて、これらサーフボード本体（１）は一般の発泡
成形体も使用することができるが、通常、ポリエチレ
ン、ポリプロピレン、ポリスチレンなどの発泡成形体で
あり、ビーズ法による型内発泡成形された成形体であ
る。従って型内発泡成形可能な（メタ）アリル酸エステ
ル−スチレン共重合体、アクリルニトリル−スチレン共
重合体ならびにポリスチレンとポリエチレンの共重合体
などの型内発泡成形体も勿論適用である。In these figures, (1) shows the main body of the surfboard, (2) shows the nose at the tip, (2 ') shows the leech cup, (3) shows the rails on both sides, and on the back side, as shown in FIG. The fins (4) are provided in the rear of the surfboard body (1), and the surfboard body (1) can be a general foamed molded product, but is usually a foamed molded product such as polyethylene, polypropylene or polystyrene. It is a molded body that is foamed and molded by the bead method. Accordingly, in-mold foam moldings such as (meth) allylic acid ester-styrene copolymers, acrylonitrile-styrene copolymers and polystyrene-polyethylene copolymers that can be foam-molded in-mold are of course applicable.

【００１３】そして、その表面には、全面にわたって伸
張性を有するシート状物（５）が被着覆装されている。
ここで上記伸張性を有するシート状物（５）は好ましく
は、伸張弾性糸を含み、ポリエステル、ポリアミド、ポ
リアクリルニトリルなどの糸により編織された編織布で
あり、かつかかる編織布を用い、その表面にウレタン被
覆などを施したレザーなども挙げられる。A sheet-like material (5) having extensibility is adhered and covered on the entire surface.
Here, the stretchable sheet-like material (5) is preferably a knitted woven fabric containing stretchable elastic yarns and woven with yarns of polyester, polyamide, polyacrylonitrile, and the like. Examples include leather whose surface is coated with urethane.

【００１４】シート状物（５）は平面的であってもよ
く、また筒状又は袋状に編織されたものであってもよ
く、これらは夫々、何れも使用される。そしてこれらシ
ート状物（５）は防水加工、撥水加工などが施されてい
てもよく、更に種々の柄模様などを適宜印刷することも
できる。The sheet-like material (5) may be flat, or may be knitted or woven into a tubular shape or a bag shape, and any of these may be used. The sheet-like material (5) may be waterproofed or water-repellent, and may be appropriately printed with various patterns.

【００１５】次に上記の如きサーフボードを製造する方
法について説明する。上記サーフボード本体（１）はそ
の形状が比較的単純であり、ビーズ法による型内発泡成
形などによって容易に成形される。そして、上記の如く
成形されたボード本体（１）を基礎として、これに前記
伸張性のあるシート状物（５）をその片面又は両面に被
着し、（必ずしも固着は必要ではないが、仮止め程度を
しておくことが好ましい）これを図３に示す如く加熱プ
レス成形に使用される上下型（６），（７）内に収納
し、通常の手段によって矢示方向に押圧し加熱プレス成
形して両者を一体化することにより得ることができる。Next, a method for manufacturing the above surfboard will be described. The surfboard body (1) has a relatively simple shape and is easily molded by in-mold foam molding by the bead method. Then, based on the board body (1) molded as described above, the stretchable sheet-like material (5) is adhered to one or both sides of the board body (1). It is preferable to hold the stopper). This is housed in the upper and lower molds (6) and (7) used for hot press molding as shown in FIG. It can be obtained by molding and integrating both.

【００１６】なお、加熱成形における型はボード本体の
成形に用いる成形型の使用が可能であり、また加熱温度
は型内発泡成形による発泡成形体の融点以上で、シート
状物の融点より低い温度であることが肝要で、発泡成形
体の種類、シート状物の種類により必ずしも一定しない
が通常、略１１０℃〜２００℃程度である。これによっ
て発泡成形体の表面セルは破壊され、溶融されてこれが
伸張性を有するシート状物に強固な接着をもたらす。The mold used in the heat molding may be a mold used for molding the board body, and the heating temperature is not lower than the melting point of the foamed molded product obtained by the in-mold foam molding but lower than the melting point of the sheet material. However, it is usually about 110 ° C. to 200 ° C., though it is not necessarily constant depending on the type of foamed molded product and the type of sheet material. As a result, the surface cells of the foamed molded article are broken and melted, which gives a strong adhesion to the stretchable sheet.

【００１７】なお、シート状物（５）は伸張性は有する
ことにより加熱プレス成形時、発泡成形体の形状に順応
して引張状態で張らせ、皺を生ずることなく発泡成形体
からなるボード本体に被着される。特に伸張性を有する
スパンデックス糸などを含み、ポリエステル糸などと共
に編織布を筒状又は袋状に編織したものは、これをボー
ド本体にかぶせ、加熱プレス成形を行なうだけで一挙に
編織した繊維布が被着されたサーフボードを得ることが
出来、頗る有利である。また、上記説明は加熱プレス成
形による場合であるが、ポード本体あるいはシート状物
の何れか又は双方に接着剤を塗布しておけば常温プレス
成形によっても両者を一体化せしめることができる。Since the sheet-like material (5) has extensibility, it is stretched in a tension state in conformity with the shape of the foamed molded product during hot press molding, and the board body made of the foamed molded product does not cause wrinkles. Be attached to. In particular, a woven or knitted woven fabric in the form of a tube or bag together with polyester yarn, etc., including spandex yarns having extensibility, is simply woven and woven by covering the board body with hot press molding. You can get a surfboard attached, which is a great advantage. Further, although the above description is for the case of hot press molding, if an adhesive is applied to either or both of the main body of the pod and the sheet-like material, both can be integrated by room temperature press molding.

【００１８】しかもこれらの場合には伸張性を有する筒
状又は袋状の繊維布は覆装しようとするサーフボード本
体の大きさに合わせ、適度に選択することにより加熱プ
レス成形で一挙に成形被着され、トリミングすることな
く製品化することができる。この加熱プレス成形と繊維
布被着の一挙作動による製品化は、同様な被着製品の製
品化に利用し同じく極めて効果的であるが、本発明の如
く、比較的単純な形態の製品には特に有効である。Moreover, in these cases, the tubular or bag-shaped fiber cloth having extensibility is appropriately selected in accordance with the size of the surfboard body to be covered, and is formed by heating press molding at once. And can be commercialized without trimming. This hot press molding and commercialization by a single operation of covering the fiber cloth are also extremely effective when used for commercializing similar adhered products. Especially effective.

【００１９】[0019]

【発明の効果】本発明は以上のようにサーフボード本体
の外面に伸張性繊維布などシート状物を被着したもので
あり、従来の樹脂製あるいはフイルム被着のものに比し
外観が美麗となり、高級感に富むと共に肌触りも良好で
補強効果も充分期待することができる。しかも被着した
繊維布などシート状物は伸張性を有するため、張られた
状態で被着され外面に皺を生ずることがなく、平滑な表
面を形成することができ、シート状物の選択と相俟って
多彩なサーフボードを提供することができる。As described above, according to the present invention, the outer surface of the surfboard body is coated with a sheet-like material such as a stretchable fiber cloth, and the appearance is more beautiful than that of the conventional resin or film-coated one. In addition, it is rich in luxury and has a good feel to the touch, and a sufficient reinforcing effect can be expected. Moreover, since the sheet-shaped material such as the adhered fiber cloth has extensibility, it can be adhered in a stretched state without forming wrinkles on the outer surface, and a smooth surface can be formed. Together, we can provide a variety of surfboards.

【００２０】一方、本発明のサーフボードの製造方法は
上記の如きサーフボードをボード本体の成形型をそのま
ま使用し加熱又は常温プレス成形を利用して一挙に作成
することを可能ならしめ、しかも伸張性を有するシート
状物あるいは筒状又は袋状編織布であるためプレス成形
時にサーフボードの外形によく順応し、皺を形成するこ
となく種々の形態に対してトリミングの必要なく容易に
シート状物の被着形成を行なうことができる。特に、筒
状又は袋状に編織した伸張布の場合には型成されたサー
フボード本体の外面にかぶせ、加熱プレス成形するだけ
で簡単に所期のサーフボードを得ることができ、しかも
余分なバリの発生もなく、トリミングの手間を要するこ
ともないため、生産効率にすぐれ、多彩なサーフボード
の製造法として極めて画期的な方法である。On the other hand, the surfboard manufacturing method of the present invention enables the surfboard as described above to be prepared at once by using the molding die of the board body as it is and utilizing heat or cold press molding. Since it is a sheet-shaped object or a tubular or bag-shaped knitted woven fabric, it adapts well to the outer shape of the surfboard during press molding, and it is easy to apply the sheet-shaped object to various shapes without forming wrinkles without trimming. Can be formed. In particular, in the case of a stretch fabric woven or woven into a tubular or bag shape, it is possible to easily obtain the desired surfboard simply by covering it on the outer surface of the formed surfboard main body and performing hot press molding, and also to remove excess burr. Since it does not occur and does not require time and effort for trimming, it has excellent production efficiency and is an extremely epoch-making method for manufacturing various surfboards.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明に係るサーフボードの１例を示す平面図
である。FIG. 1 is a plan view showing an example of a surfboard according to the present invention.

【図２】同側面図である。FIG. 2 is a side view of the same.

【図３】成形型を用いたシート状物被着の態様を示す断
面概要図である。FIG. 3 is a schematic cross-sectional view showing a mode of depositing a sheet-like material using a molding die.

【符号の説明】[Explanation of symbols]

（１） サーフボード本体 （５） 被着シート状物 （６） 上型 （７） 下型 (1) Surfboard body (5) Adhering sheet (6) Upper mold (7) Lower mold

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ２９Ｌ 9:00 4Ｆ 31:52 4Ｆ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location B29L 9:00 4F 31:52 4F

Claims (5)

【特許請求の範囲】[Claims] 【請求項１】 サーフインに用いるサーフボードであっ
て、ボード本体の表面に伸張性を有するシート状物が一
体的に被覆外装されていることを特徴とするサーフボー
ド。1. A surfboard used for surfing, characterized in that the surface of a board body is integrally covered and covered with a sheet-like material having stretchability. 【請求項２】 サーフインに用いるサーフボードであっ
て、ボード本体が型内発泡成形による発泡成形体からな
り、その表面に伸張性を有するシート状物がボード本体
表面の溶融により一体的に被着されていることを特徴と
するサーフボード。2. A surfboard used for surfing, wherein the board body is made of a foamed molded product by in-mold foam molding, and a sheet-like material having stretchability on its surface is integrally attached by melting the surface of the board main body. A surfboard that is characterized by being. 【請求項３】 型内発泡成形により成形されたサーフボ
ード本体に伸張性を有するシート状物をその片面又は両
面に被着し、成形型内に収納して加熱成形プレスにより
発泡成形体の表面を溶融せしめると共に、被着シート状
物を賦形一体化せしめることを特徴とするサーフボード
の製造方法。3. A surfboard body molded by in-mold foam molding is coated with a stretchable sheet-like material on one side or both sides thereof, and is housed in a mold and the surface of the foam molded body is heated by a heat molding press. A method for manufacturing a surfboard, which comprises melting and simultaneously forming and integrating an adherend sheet material. 【請求項４】 型内発泡成形により成形されたサーフボ
ード本体外面に伸張弾性糸を含み筒状又は袋状に形成し
てなる繊維布をかぶせ、成形型内に収納して加熱成形プ
レスによりボード本体表面を溶融せしめると共に被着繊
維布を該ボード本体に一挙に被着一体化せしめることを
特徴とするサーフボードの製造方法。4. A surfboard body molded by in-mold foam molding is covered with a fiber cloth formed into a tubular or bag shape containing stretchable elastic threads on the outer surface of the surfboard body, and the cloth is housed in a molding die and subjected to a heat molding press to form a board body. A method for producing a surfboard, characterized in that the surface is melted and the adhered fiber cloth is adhered to and integrated with the board body all at once. 【請求項５】 型内発泡成形により成形されたサーフボ
ード本体外面に伸張性を有するシート状物を接着剤を介
して被着し、これを成形型内に収納して加熱成形プレス
又は常温成形プレスにより一体化せしめることを特徴と
するサーフボードの製造方法。5. A sheet material having stretchability is adhered to an outer surface of a surfboard body molded by in-mold foam molding via an adhesive, and the sheet material is housed in a molding die to be hot-molded or cold-molded. A method for manufacturing a surfboard, which is characterized by being integrated with each other.
JP27118792A 1992-09-14 1992-09-14 Surfboard and manufacture thereof Pending JPH0691766A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27118792A JPH0691766A (en) 1992-09-14 1992-09-14 Surfboard and manufacture thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27118792A JPH0691766A (en) 1992-09-14 1992-09-14 Surfboard and manufacture thereof

Publications (1)

Publication Number Publication Date
JPH0691766A true JPH0691766A (en) 1994-04-05

Family

ID=17496564

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27118792A Pending JPH0691766A (en) 1992-09-14 1992-09-14 Surfboard and manufacture thereof

Country Status (1)

Country Link
JP (1) JPH0691766A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2328175A (en) * 1997-08-12 1999-02-17 Sun Own Ind Co Ltd Method for making a surfboard
ES2157702A1 (en) * 1997-11-04 2001-08-16 Sun Own Ind Co Ltd Surfboard manufacture
JP2002364907A (en) * 2001-06-08 2002-12-18 Daikin Ind Ltd Flap for air conditioner, and its manufacturing method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2328175A (en) * 1997-08-12 1999-02-17 Sun Own Ind Co Ltd Method for making a surfboard
ES2157702A1 (en) * 1997-11-04 2001-08-16 Sun Own Ind Co Ltd Surfboard manufacture
JP2002364907A (en) * 2001-06-08 2002-12-18 Daikin Ind Ltd Flap for air conditioner, and its manufacturing method

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