JP2002219765A - Frp molded object - Google Patents
Frp molded objectInfo
- Publication number
- JP2002219765A JP2002219765A JP2001018272A JP2001018272A JP2002219765A JP 2002219765 A JP2002219765 A JP 2002219765A JP 2001018272 A JP2001018272 A JP 2001018272A JP 2001018272 A JP2001018272 A JP 2001018272A JP 2002219765 A JP2002219765 A JP 2002219765A
- Authority
- JP
- Japan
- Prior art keywords
- molding material
- molding
- molding compound
- frp molded
- flow resistance
- 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
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、裏面側にリブを有
するＦＲＰ成形体、例えばユニットバスの防水パンや壁
パネル等に採用されるＦＲＰ成形体に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an FRP molded article having a rib on the back side, for example, an FRP molded article used for a waterproof pan or a wall panel of a unit bath.
【０００２】[0002]
【従来の技術】従来、防水パン等のＦＲＰ成形体として
は、例えば特開平５−２８５９７３号公報、特開平８−
３００３８１号公報、特開平１１−２５４４７０号公報
及び特開平１１−２６８０６５号公報等に開示されてい
る。先ず、特開平５−２８５９７３号公報に開示のＦＲ
Ｐ成形体（成形体Ａという）は、セルロースと酸化チタ
ンからなる模様を施したチタン紙に、ＤＡＴ（ジアリル
フタレート）等の樹脂を含浸してプリプレグシートを成
形し、これをシートモールディングコンパウンド（ＳＭ
Ｃ）と同時に加圧加熱成形したものである。2. Description of the Related Art Conventionally, as FRP molded articles such as waterproof pans, for example, Japanese Patent Application Laid-Open Nos.
No. 300381, JP-A-11-254470 and JP-A-11-26865. First, the FR disclosed in JP-A-5-285973 is disclosed.
The P molded body (referred to as molded body A) is prepared by forming a prepreg sheet by impregnating a resin such as DAT (diallyl phthalate) into a titanium paper provided with a pattern made of cellulose and titanium oxide, and forming the prepreg sheet into a sheet molding compound (SM).
It was molded under pressure and heat simultaneously with C).
【０００３】また、特開平８−３００３８１号公報に開
示のＦＲＰ成形体（成形体Ｂという）は、耐熱フィルム
に模様を印刷してなる転写紙をＳＭＣと同時に加圧加熱
して成形物を形成した後に、耐熱フィルムを剥がして成
形物の表面に透明の熱硬化性樹脂層を硬化形成したもの
である。また、特開平１１−２５４４７０号公報に開示
のＦＲＰ成形体（成形体Ｃという）は、模様面を有する
加飾材料をＳＭＣ上に重ねてこれらを予備圧着機で貼り
合わせた後に加圧成形したものである。Further, a FRP molded article (referred to as molded article B) disclosed in Japanese Patent Application Laid-Open No. 8-300381 is formed by molding a transfer paper formed by printing a pattern on a heat-resistant film by applying pressure and heating simultaneously with SMC. After that, the heat-resistant film was peeled off to form a transparent thermosetting resin layer on the surface of the molded product by curing. Further, the FRP molded article (referred to as molded article C) disclosed in Japanese Patent Application Laid-Open No. H11-254470 was formed by superimposing a decorative material having a pattern surface on SMC, pasting them together by a preliminary press bonding machine, and then press-molding. Things.
【０００４】さらに、特開平１１−２６８０６５号公報
に開示のＦＲＰ成形体（成形体Ｄという）は、印刷を施
したポリエステル不織布と無地のポリエステル不織布と
を熱溶着により一体化し、これに熱硬化性樹脂を含浸し
てプリプレグシートを形成し、このプリプレグシートと
ＳＭＣ等を同時成形したものである。[0004] Further, an FRP molded article (referred to as molded article D) disclosed in Japanese Patent Application Laid-Open No. 11-268065 integrates a printed polyester nonwoven fabric and a plain polyester nonwoven fabric by heat welding, and forms a thermosetting resin. A prepreg sheet is formed by impregnating a resin, and this prepreg sheet and SMC are molded simultaneously.
【０００５】ところが、前記成形体Ａにあっては、紙質
的に高いチタン紙を使用するため、該チタン紙への樹脂
の含浸不良やチタン紙自体のクラック等から成形体内に
水が進入した場合に、該部分にカビが発生し、防水パン
等の成形体に使用すると清潔感を低下させるという不都
合を有すると共に、チタン紙自体が伸びないため、凹凸
が大きい成形体の場合に、チタン紙が凹凸形状に追従で
きずに破れが発生し、成形不良品が発生し易いという不
都合を有している。However, in the case of the molded article A, since titanium paper having a high paper quality is used, when water enters the molded article due to impregnation of the titanium paper with resin or cracks of the titanium paper itself. In addition, mold is generated in the portion, and when used for a molded product such as a waterproof pan, there is a disadvantage that the cleanliness is lowered, and the titanium paper itself does not stretch. There is an inconvenience that a break occurs due to the inability to follow the uneven shape and a defective molding is likely to occur.
【０００６】また、前記成形体Ｂにあっては、耐熱フィ
ルムを剥がした後に透明の樹脂を例えばスプレー塗装す
るため、成形体の表面が比較的なだらかとなって、成形
体が防水パンの場合に、入浴者がすべり易いという不都
合を有すると共に、脱型後の予熱を利用して塗装する
と、塗料中の溶剤分が急激に揮発して、作業環境が著し
く悪化し易いという不都合も有している。また、成形体
Ｃにあっては、予備圧着機による貼り合わせ工程と通常
の成形工程の２つの工程が必要になるため、成形サイク
ル長が長くなって、成形体の製造コストが高くなり易い
という不都合を有している。In the case of the molded article B, since the transparent resin is applied, for example, by spray coating after the heat-resistant film is peeled off, the surface of the molded article becomes relatively gentle, so that the molded article is a waterproof pan. In addition, there is a disadvantage that the bather easily slides, and when painting using preheating after removal from the mold, the solvent component in the paint is rapidly volatilized, and the working environment is easily deteriorated significantly. . Further, in the case of the molded body C, since two steps of a bonding step using a pre-compression bonding machine and a normal molding step are required, the molding cycle length is increased, and the production cost of the molded body is likely to be increased. Has inconvenience.
【０００７】さらに、前記成形体Ｄにあっては、印刷さ
れたポリエステル不織布と無地のポリエステル不織布を
ＳＭＣと同時に加熱成形するため、１３０〜１５０℃の
金型上でＳＭＣを流動させると、その流動抵抗によって
軟化したポリエステル不織布が変形してしまい成形不良
品が発生し易いという不都合を有している。Further, in the molded article D, since the printed polyester non-woven fabric and the plain polyester non-woven fabric are heated and formed simultaneously with the SMC, when the SMC is flowed on a mold at 130 to 150 ° C., There is an inconvenience that the polyester non-woven fabric softened by resistance is deformed and defective molding is likely to occur.
【０００８】[0008]
【発明が解決しようとする課題】そこで、当出願人は、
このような不都合を解消するＦＲＰ成形体として、特願
平２０００−１８２９号を出願した。このＦＲＰ成形体
は、所定の模様が予め施されたセルロース成分を含まな
い有機繊維系不織布に熱硬化性組成物を含浸してプリプ
レグシートを作成し、このプリプレグシート上に耐熱繊
維補強材を介してＳＭＣ等を積層し、この積層体を加圧
加熱成形するようにしたものである。Therefore, the present applicant has
Japanese Patent Application No. 2000-1829 has filed an application as an FRP molded body that solves such disadvantages. This FRP molded product is prepared by impregnating a thermosetting composition into an organic fiber-based nonwoven fabric containing no cellulose component and having a predetermined pattern formed in advance, to form a prepreg sheet, and a heat-resistant fiber reinforcing material on the prepreg sheet. SMC and the like are laminated by pressing, and the laminated body is subjected to pressure and heat molding.
【０００９】このＦＲＰ成形体によれば、凹凸形状に追
従した安定した成形体が得られると共に、安定した模様
を安価に形成しかつ模様の境界線を明瞭に形成すること
ができる。しかし、その後の実験によって、不織布の耐
熱温度が成形温度より低いことから、成形温度で不織布
に変形等が発生し易く、模様の境界線に十分な直線性を
安定確保し難いという問題点を有することが判明した。According to this FRP molded article, a stable molded article that follows the uneven shape can be obtained, and a stable pattern can be formed at a low cost and the boundary of the pattern can be clearly formed. However, since the heat resistance temperature of the nonwoven fabric is lower than the molding temperature according to subsequent experiments, the nonwoven fabric tends to be deformed at the molding temperature, and has a problem that it is difficult to stably secure sufficient linearity at the boundary of the pattern. It has been found.
【００１０】さらに、前記各成形体Ａ〜Ｄの不都合を解
消するものとして、ＴＭＣ（Ｔｈｉｃｋｎｅｓｓ Ｍｏ
ｌｄｉｇ Ｃｏｍｐｏｕｎｄ）に柄材としての着色マイ
カ等を入れて、安易に防水パンに加飾を施す方法が一部
で提案されている。しかし、この方法で、例えば図４に
示す形状の防水パン１００を実際に成形すると、防水パ
ン１００の裏面側に設けられるリブ１０１部分に沿って
柄材が走り易い。[0010] Further, as a solution to the inconvenience of each of the moldings A to D, TMC (Thickness Mo) is used.
Some methods have been proposed in which a colored mica or the like as a pattern material is put into an Ldig Compound to easily decorate a waterproof pan. However, when the waterproof pan 100 having the shape shown in FIG. 4 is actually formed by this method, the pattern material easily runs along the rib 101 provided on the back surface side of the waterproof pan 100.
【００１１】そのため、防水パン１００の表面１００ａ
側から見た場合に、図４の二点鎖線部分１０２の色調が
他の部分１０３の色調に対して濃くなって、不均一な外
観になることが判明した。したがって、この方法の場合
は、リブ１０１を有さないＦＲＰ成形体の場合には良好
に適用できるものの、リブ１０１を有するＦＲＰ成形体
では外観不良が発生して不向きであるという問題点を有
している。Therefore, the surface 100a of the waterproof pan 100
When viewed from the side, it was found that the color tone of the two-dot chain line portion 102 in FIG. Therefore, in the case of this method, although it can be applied favorably to the FRP molded body having no rib 101, the FRP molded body having the rib 101 has a problem that appearance failure occurs and is not suitable. ing.
【００１２】本発明は、このような事情に鑑みてなされ
たもので、その目的は、材料費のコストアップを抑えか
つ均一外観で意匠性に優れた成形体が容易に得られるＦ
ＲＰ成形体を提供することにある。また、他の目的は、
前記目的に加え、均一外観がより容易に得られたり、よ
り安価に形成し得るＦＲＰ成形体を提供することにあ
る。The present invention has been made in view of such circumstances, and an object of the present invention is to suppress the increase in material costs and to easily obtain a molded article having a uniform appearance and excellent design.
An object of the present invention is to provide an RP molded body. Also, for other purposes,
Another object of the present invention is to provide an FRP molded body that can obtain a uniform appearance more easily and can be formed at lower cost.
【００１３】[0013]
【課題を解決するための手段】かかる目的を達成すべ
く、本発明のうち請求項１記載の発明は、裏面側にリブ
を有するＦＲＰ成形体であって、少なくとも、第１の成
形材料と、該成形材料と流動抵抗エネルギーが異なる第
２の成形材料と、を組み合わせて成形してなることを特
徴とする。Means for Solving the Problems In order to achieve the above object, an invention according to claim 1 of the present invention is an FRP molded article having a rib on a back surface side, comprising at least a first molding material; The molding is performed by combining the molding material and a second molding material having a different flow resistance energy.
【００１４】このように構成することにより、ＦＲＰ成
形体は、第１の成形材料と第２の成形材料を組み合わせ
て、これを例えば加圧加熱成形することによって形成さ
れる。この時、第１の成形材料と第２の成形材料の流動
抵抗エネルギーが異なるように設定されていることか
ら、成形時の各成形材料の流れ状態に変化を持たせるこ
とができて、成形体表面の外観不良の発生が防止され
る。[0014] With this configuration, the FRP molded body is formed by combining the first molding material and the second molding material and subjecting them to, for example, pressure and heat molding. At this time, since the flow resistance energies of the first molding material and the second molding material are set to be different, the flow state of each molding material during molding can be changed, and The occurrence of poor surface appearance is prevented.
【００１５】また、請求項２記載の発明は、第１の成形
材料が柄入り成形材料で形成され、第２の成形材料が柄
無し成形材料で第１の成形材料より流動抵抗エネルギー
が小さくかつリブ側に位置することを特徴とする。この
ように構成することにより、成形体のリブ側に位置する
第２の成形材料として柄無し成形材料が使用され、かつ
その流動抵抗エネルギーが成形体表面側に位置する第１
の成形材料より小さく設定されていることから、第２の
成形材料のリブ内への充填で第１の成形材料のリブ内へ
の充填を阻止でき、柄材が成形体表面に均一に分散して
均一外観のＦＲＰ成形体が容易に得られる。また、リブ
側に安価な柄無し成形材料を使用するため、材料費のコ
ストダウンを図ることができる。According to a second aspect of the present invention, the first molding material is formed of a patterned molding material, the second molding material is a patternless molding material, and has a smaller flow resistance energy than the first molding material. It is characterized by being located on the rib side. With this configuration, the patternless molding material is used as the second molding material located on the rib side of the molded body, and the flow resistance energy of the first molding material is located on the surface side of the molded body.
Since the second molding material is set smaller than the first molding material, the filling of the first molding material into the ribs can be prevented by filling the second molding material into the ribs. A FRP molded article having a uniform appearance can be easily obtained. Further, since an inexpensive patternless molding material is used on the rib side, material cost can be reduced.
【００１６】また、請求項３記載の発明は、第２の成形
材料が、第１の成形材料に対して１／１０〜１／２の流
動抵抗エネルギーを有することを特徴とする。このよう
に構成することにより、第２の成形材料の流動抵抗エネ
ルギーを最適値に設定できて、より均一外観のＦＲＰ成
形体が得られる。The invention according to claim 3 is characterized in that the second molding material has a flow resistance energy of 1/10 to 1/2 with respect to the first molding material. With this configuration, the flow resistance energy of the second molding material can be set to an optimum value, and an FRP molded body having a more uniform appearance can be obtained.
【００１７】また、請求項４記載の発明は、第１の成形
材料と第２の成形材料の重量比が４：１〜１：４に設定
されていることを特徴とする。このように構成すること
により、第１の成形材料と第２の成形材料の使用量を最
適値に設定できて、より一層安価で均一外観のＦＲＰ成
形体が得られる。Further, the invention according to claim 4 is characterized in that the weight ratio between the first molding material and the second molding material is set to 4: 1 to 1: 4. With this configuration, the amounts of the first molding material and the second molding material used can be set to optimal values, and a more inexpensive FRP molded body having a uniform appearance can be obtained.
【００１８】[0018]
【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて詳細に説明する。図１〜図３は、本発明に係
わるＦＲＰ成形体をユニットバスの防水パンに適用した
場合の一実施の形態を示し、図１が防水パンの平面図、
図２が図１のＡ部を拡大した縦断面図、図３が防水パン
の成形方法の説明図である。Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 3 show an embodiment in which the FRP molded article according to the present invention is applied to a waterproof pan of a unit bath, and FIG. 1 is a plan view of the waterproof pan.
2 is an enlarged longitudinal sectional view of a portion A in FIG. 1, and FIG. 3 is an explanatory view of a method for forming a waterproof pan.
【００１９】図１において、防水パン１は、例えば幅Ｗ
と長さＬを有する平面視長方形状に形成されて、その裏
面１ｃ側には、外周壁１ａと、該外周壁１ａ間に前後及
び左右方向に多数本一体成形された平面視格子状のリブ
２とが形成されている。また、防水パン１の一方の短辺
側の中央部分には、排水口を形成する半円弧形状の凹部
３が形成されると共に、その表面には石目調の模様部４
と、該模様部４の外側である外周縁部に成形材料自体の
色による無模様部５が形成されている。In FIG. 1, a waterproof pan 1 has a width W, for example.
Is formed in a rectangular shape in plan view having a length L, and on its back surface 1c side, an outer peripheral wall 1a and a plurality of ribs in a plan view lattice shape integrally formed between the outer peripheral wall 1a in the front-rear and left-right directions. 2 are formed. A semicircular concave portion 3 forming a drain port is formed in a central portion on one short side of the waterproof pan 1, and a stone-like pattern portion 4 is formed on the surface thereof.
In addition, a non-pattern portion 5 is formed on the outer peripheral edge portion outside the pattern portion 4 by the color of the molding material itself.
【００２０】そして、防水パン１は、図２に示すよう
に、その表面１ｂ側に形成された第１の層６と裏面１ｃ
側に形成された第２の層７の２層構造で板厚ｔを有する
ように形成されている。また、前記リブ２は、厚さｔ１
で高さｈ１及びピッチｐ１を有し第２の層７に一体成形
されている。このリブ２によって、防水パン１の強度ア
ップが図られている。なお、リブ２の厚さｔ１や高さｈ
１あるいはピッチｐ１等の形状は一例であって、防水パ
ン１自体の大きさ等に応じて、例えばピッチｐ１を幅Ｗ
方向と長さＬ方向で異ならせる等、適宜に変更すること
ができる。As shown in FIG. 2, the waterproof pan 1 has a first layer 6 formed on the front surface 1b and a back surface 1c.
The second layer 7 formed on the side has a two-layer structure and is formed to have a plate thickness t. The rib 2 has a thickness t1.
And has a height h1 and a pitch p1 and is integrally formed with the second layer 7. The ribs 2 increase the strength of the waterproof pan 1. The thickness t1 and height h of the rib 2
1 or the pitch p1 is an example, and the pitch p1 is changed to the width W according to the size of the waterproof pan 1 itself.
The direction and the length L direction can be changed as appropriate, for example.
【００２１】この防水パン１は、図３に示すようにして
成形される。すなわち、下方の金型８の上面に第１の成
形材料１０を載置し、この第１の成形材料１０上に第１
の成形材料１０より流動抵抗エネルギーが小さい第２の
成形材料１１を載置して積層する。これにより、第１の
成形材料１０と第２の成形材料１１からなる積層体１２
が形成される。The waterproof pan 1 is formed as shown in FIG. That is, the first molding material 10 is placed on the upper surface of the lower mold 8, and the first molding material 10 is placed on the first molding material 10.
The second molding material 11 whose flow resistance energy is smaller than that of the molding material 10 is placed and laminated. As a result, a laminate 12 composed of the first molding material 10 and the second molding material 11 is formed.
Is formed.
【００２２】この時、第１の成形材料１０としては、柄
入りの前記ＴＭＣ、ＳＭＣあるいはＢＭＣ（バルクモー
ルディングコンパウンド）が使用され、第２の成形材料
１１としては、柄無しのＴＭＣ、ＳＭＣ、ＢＭＣが使用
される。また、第２の成形材料１１の流動抵抗エネルギ
ーは、第１の成形材料１０に対して１／１０〜１／２に
設定される。これは、１／１０以下では、流動抵抗エネ
ルギーが第１の成形材料１０の方が第２の成形材料１１
より大きくなってしまい、また、１／２以上では、両成
形材料１０、１１の流動抵抗エネルギーがほぼ等しくな
って、共に流動性に係わる後述する効果が得られないこ
とによる。At this time, the aforementioned TMC, SMC or BMC (bulk molding compound) having a pattern is used as the first molding material 10, and the non-patterned TMC, SMC, BMC is used as the second molding material 11. Is used. Further, the flow resistance energy of the second molding material 11 is set to 1/10 to １ ／ of that of the first molding material 10. This is because, at 1/10 or less, the flow resistance energy of the first molding material 10 is larger than that of the second molding material 11.
If it is １ ／ or more, the flow resistance energies of the molding materials 10 and 11 become substantially equal, and the effects described below relating to fluidity cannot be obtained.
【００２３】また、第１の成形材料１０と第２の成形材
料１１の成形時の重量比は、４：１〜１：４に設定され
る。これは、４：１以上や１：４以下では、第２の成形
材料１１の流動性に係わる効果が得られないことによ
る。なお、図３においては、第１の成形材料１０と第２
の成形材料１１の大きさを同一としたが、重量比に応じ
てその大きさを、例えば第２の成形材料１１を図の二点
鎖線で示すように、外観上第１の成形材料１０より大き
く設定することもできる。The weight ratio of the first molding material 10 to the second molding material 11 during molding is set to 4: 1 to 1: 4. This is because an effect relating to the fluidity of the second molding material 11 cannot be obtained when the ratio is 4: 1 or more or 1: 4 or less. In FIG. 3, the first molding material 10 and the second molding material 10
Although the size of the molding material 11 was the same, the size was changed in accordance with the weight ratio, for example, the second molding material 11 was compared with the first molding material 10 in appearance as shown by a two-dot chain line in FIG. It can be set large.
【００２４】そして、このように形成された第１の成形
材料１０と第２の成形材料１１との積層体１２を、防水
パン１の表面１ｂ側となる第１の成形材料１０が下側に
なる如く金型８、９間にセットし、リブ２成形用の凹溝
９ａを有する金型９を下降させて、１〜２０ＭＰａ（１
０〜２００ｋｇｆ／ｃｍ２）の圧力で加圧加熱成形する
ことにより、第１の成形材料１０に対応した第１の層６
と第２の成形材料１１に対応した第２の層７を有する前
記防水パン１が形成される。なお、成形時の金型８の温
度は１００〜１６０℃に設定され、金型９の温度は８０
〜１５０℃に設定される。Then, the laminated body 12 of the first molding material 10 and the second molding material 11 formed as described above is placed on the lower surface of the first molding material 10 on the surface 1b side of the waterproof pan 1. The mold 9 having the concave groove 9a for forming the rib 2 is lowered by setting the mold 9 between the molds 8 and 9 as shown in FIG.
The first layer 6 corresponding to the first molding material 10 is formed by pressurizing and heating at a pressure of 0 to 200 kgf / cm 2 ).
Then, the waterproof pan 1 having the second layer 7 corresponding to the second molding material 11 is formed. The temperature of the mold 8 during molding is set at 100 to 160 ° C., and the temperature of the mold 9 is 80 ° C.
１５０150 ° C.
【００２５】なお、この例では、下方の金型８上に第１
の成形材料１０をセットし、この第１の成形材料１０上
に第２の成形材料１１を載置して積層体１２を形成した
が、一対の金型８、９と第１の成形材料１０及び第２の
成形材料１１を上下方向に逆に構成することもできる。In this example, the first mold 8 is placed on the lower mold 8.
The molding material 10 is set, and the second molding material 11 is placed on the first molding material 10 to form the laminated body 12. However, the pair of dies 8, 9 and the first molding material 10 The second molding material 11 may be configured to be vertically inverted.
【００２６】[0026]
【実施例】次に、本発明の実施例について説明する。先
ず、下記表１に示す配合からなる第１の成形材料１０
と、表２に示す配合からなり、不飽和ポリエスル（樹
脂）とポリスチレン／スチレン溶液（低収縮剤）及び酸
化マグネシウム（増粘剤）の割合（重量部）を表２に示
す範囲内で変えた３種類（Ｂ−１、Ｂ−２、Ｂ−３）の
第２の成形材料１１を作成した。この３種類の第２の成
形材料１１の流動抵抗エネルギーは、下記表３に示す方
法で測定した結果、Ｂ−１＝４０ジュール（Ｊ）でＢ−
２＝１００Ｊ、Ｂ−３＝３００Ｊであった。Next, an embodiment of the present invention will be described. First, a first molding material 10 having a composition shown in Table 1 below was used.
And the proportions (parts by weight) of the unsaturated polyester (resin), the polystyrene / styrene solution (low shrinkage agent) and the magnesium oxide (thickener) were changed within the range shown in Table 2. Three types (B-1, B-2, B-3) of second molding materials 11 were prepared. The flow resistance energies of the three types of second molding materials 11 were measured by the method shown in Table 3 below.
2 = 100J and B-3 = 300J.
【００２７】[0027]
【表１】 [Table 1]
【００２８】[0028]
【表２】 [Table 2]
【００２９】[0029]
【表３】 [Table 3]
【００３０】そして、第１の成形材料１０と３種類の第
２の成形材料１１とを適宜に組み合わせて、下記表４に
示す実施例１〜８と第２の成形材料１１を使用しない比
較例について試験した。なお、成形される防水パンとし
ては、図１及び図２において、Ｗ＝８５０ｍｍ、Ｌ＝１
６００ｍｍ、ｔ＝５ｍｍ、リブ２の厚さｔ１＝３ｍｍ、
高さｈ１＝５０ｍｍ、ピッチｐ１＝１００ｍｍの防水パ
ン１とし、その成形条件としては、金型８の温度が１４
５℃、金型９の温度が１３０℃で、成形圧力が１４，０
００ｋＮ（１４００トン）、成形時間を４２０秒とし
た。成形後の防水パン１の外観不良結果を同表４に示
す。Then, the first molding material 10 and the three types of second molding materials 11 were appropriately combined to form Examples 1 to 8 shown in Table 4 below and Comparative Examples in which the second molding material 11 was not used. Was tested. In addition, as a waterproof pan to be molded, in FIGS. 1 and 2, W = 850 mm, L = 1
600 mm, t = 5 mm, thickness t1 of rib 2 = 3 mm,
A waterproof pan 1 having a height h1 = 50 mm and a pitch p1 = 100 mm was used.
5 ° C., temperature of mold 9 is 130 ° C., molding pressure is 14.0
00 kN (1400 tons) and the molding time was 420 seconds. Table 4 shows the results of poor appearance of the waterproof pan 1 after molding.
【００３１】なお、実施例１〜３は、第１の成形材料１
０と第２の成形材料１１の重量部を同一として、流動抵
抗エネルギーを４０Ｊ、１００Ｊ、３００Ｊと変化させ
た例であり、実施例４〜８は、流動抵抗エネルギーを１
００Ｊと一定にし、第１の成形材料１０と第２の成形材
料１１の重量部を変化させた例である。In Examples 1 to 3, the first molding material 1 was used.
0 and the weight part of the second molding material 11 are the same, and the flow resistance energy is changed to 40 J, 100 J, and 300 J. In Examples 4 to 8, the flow resistance energy is 1
This is an example in which the weight ratio of the first molding material 10 and the second molding material 11 is changed to be constant at 00J.
【００３２】[0032]
【表４】 [Table 4]
【００３３】この表４から明らかなように、実施例２と
実施例５〜７において、外観不良が発生せず良好な防水
パン１が得られることが判明し、また、実施例１、３、
４、８においては、比較例より外観不良の発生が少ない
ことが判明した。したがって、防水パン１のリブ２側
に、少なくとも第１の成形材料１０より流動抵抗エネル
ギーの小さい第２の成形材料１１を使用することによ
り、１種類の第１の成形材料（比較例）で成形する場合
に比較して、外観不良の発生が抑えられることになり、
第２の成形材料１１の流動エネルギー等を適宜に設定す
ることで、外観不良の発生を確実に防止することができ
る。As is evident from Table 4, in Examples 2 and 5 to 7, it was found that a good waterproof pan 1 was obtained without any appearance defect.
In Examples 4 and 8, it was found that appearance defects were less likely to occur than in Comparative Examples. Therefore, by using at least the second molding material 11 having smaller flow resistance energy than the first molding material 10 on the rib 2 side of the waterproof pan 1, molding with one kind of first molding material (comparative example) is performed. Compared to the case where the appearance defect is suppressed,
By appropriately setting the flow energy and the like of the second molding material 11, it is possible to reliably prevent the appearance failure from occurring.
【００３４】この実施例１〜８において外観不良の発生
が抑えられる理由としては、リブ２側に流動抵抗エネル
ギーの少ない第２の成形材料１１が配置されて成形され
ることから、先ず流動し易い第２の成形材料１１が金型
９の凹溝９ａ内に充填されて、流動の遅い第１の成形材
料１０の凹溝９ａ内への充填が阻止され、その結果、第
１の成形材料１０に含まれる柄材のリブ２部への集中が
なくなることによるものと考えられる。また、リブ部と
同様の効果がボス部を有するＦＲＰ成形体においても確
認されている。The reason why the appearance defects are suppressed in Examples 1 to 8 is that the second molding material 11 having a low flow resistance energy is arranged on the rib 2 side and molded, so that it is easy to flow first. The second molding material 11 is filled into the groove 9a of the mold 9, and the filling of the slow-flowing first molding material 10 into the groove 9a is prevented. As a result, the first molding material 10 It is considered that the concentration of the pattern material contained in the rib 2 on the rib 2 is eliminated. Further, the same effect as the rib portion has been confirmed in the FRP molded body having the boss portion.
【００３５】このように、上記実施例の防水パン１によ
れば、表面１ｂ側に位置する柄入りの第１の成形材料１
０と、リブ２側に位置し柄無しで第１の成形材料１０よ
り流動抵抗エネルギーの小さい第２の成形材料１１を適
宜に組み合わせて積層させ、これを加圧加熱成形して形
成するため、第２の成形材料１１をリブ２に対応した金
型９の凹溝９ａ内に充填させて、第１の成形材料１１の
充填を阻止できる。その結果、第１の成形材料１１に含
まれる柄材のリブ２部への集中が防止され、防水パン１
の表面１ｂにリブ２に沿って色調が異なる部分の発生が
なくなって、均一外観の防水パン１を得ることが可能に
なる。As described above, according to the waterproof pan 1 of the above embodiment, the patterned first molding material 1 located on the front surface 1b side.
0 and the second molding material 11, which is located on the rib 2 side and has no flow resistance energy than the first molding material 10 without a handle, are appropriately combined and laminated, and are formed by pressurizing and heating molding. The filling of the first molding material 11 can be prevented by filling the second molding material 11 into the concave grooves 9a of the mold 9 corresponding to the ribs 2. As a result, the pattern material contained in the first molding material 11 is prevented from being concentrated on the ribs 2 and the waterproof pan 1
No portion having a different color tone is generated along the rib 2 on the surface 1b of the waterproof pan 1, and the waterproof pan 1 having a uniform appearance can be obtained.
【００３６】また、リブ６側に防水パン１の外観には直
接影響しない柄無しの第２の成形材料１１を使用するた
め、従来のように成形材料を柄入りの１種類の成形材料
で成形する場合に比較して、高価な第１の成形材料１０
の使用量を少なくすることができて、成形材料の材料費
のコストダウンが図れ、安価な防水パン１を得ることが
可能になる。Further, since the second molding material 11 having no pattern which does not directly affect the appearance of the waterproof pan 1 is used on the side of the rib 6, the molding material is molded from one type of molding material having a pattern as in the prior art. Compared to the case where the first molding material 10 is expensive.
Can be reduced, the material cost of the molding material can be reduced, and an inexpensive waterproof pan 1 can be obtained.
【００３７】さらに、第２の成形材料１１の流動抵抗エ
ネルギーが、第１の成形材料１０に対して１／１０〜１
／２の範囲の最適値に設定されているため、第２の成形
材料１１の流動量を適正値に設定できて、外観不良の発
生をより確実に防止することができる。また、第１の成
形材料１０と第２の成形材料１１の重量比が、４：１〜
１：４の範囲の最適値に設定されているため、高価な第
１の成形材料１０の使用量や所定の流動量が得られる第
２の成形材料１１の使用量を適正に設定でき、これらに
より、より安価で均一外観が得られる防水パン１を容易
に成形することが可能になる。Further, the flow resistance energy of the second molding material 11 is 1/10 to 1
Since the flow rate of the second molding material 11 can be set to an appropriate value because it is set to the optimum value in the range of / 2, it is possible to more reliably prevent appearance defects. Further, the weight ratio of the first molding material 10 to the second molding material 11 is 4: 1 to 1
Since the optimum value in the range of 1: 4 is set, the usage amount of the expensive first molding material 10 and the usage amount of the second molding material 11 that can obtain a predetermined flow amount can be appropriately set. Thereby, it becomes possible to easily form the waterproof pan 1 which is less expensive and has a uniform appearance.
【００３８】また、第１の成形材料１０と第２の成形材
料１１の組み合わせで所定特性の防水パン１が成形され
るため、従来の設備や成形作業方法等を何等変更するこ
となく対応できて、より安価で高品質の防水パン１を得
ることが可能になる。Further, since the waterproof pan 1 having a predetermined characteristic is formed by a combination of the first molding material 10 and the second molding material 11, it is possible to cope with the conventional equipment and molding method without any change. Thus, it is possible to obtain a cheaper and higher quality waterproof pan 1.
【００３９】なお、以上の説明においては、ＦＲＰ成形
体が防水パン１である場合について説明したが、本発明
は防水パンに限らず、ユニットバスの壁パネル及びミラ
ーパネルやシャワーパネル、あるいは水廻り空間以外の
他のパネル等の、裏面側にリブを有する全てのＦＲＰ成
形体に適用することができる。また、上記実施例におい
ては、第１の成形材料１０と第２の成形材料１１の２種
類の成形材料を使用する場合について説明したが、本発
明はこれに何等限定されず、３種類以上の成形材料を使
用することもでき、この場合は、リブ２側の成形材料の
流動抵抗エネルギーが他の成形材料に対して小さく設定
される。In the above description, the case where the FRP molded body is the waterproof pan 1 has been described. However, the present invention is not limited to the waterproof pan, and the wall panel of the unit bath, the mirror panel, the shower panel, or the area around the water can be used. The present invention can be applied to all FRP molded bodies having ribs on the back surface side, such as panels other than spaces. Further, in the above-described embodiment, the case where two types of molding materials, that is, the first molding material 10 and the second molding material 11 are used, is described. A molding material can also be used. In this case, the flow resistance energy of the molding material on the side of the rib 2 is set smaller than that of the other molding materials.
【００４０】[0040]
【発明の効果】以上詳述したように、請求項１記載の発
明によれば、第１の成形材料と第２の成形材料の流動抵
抗エネルギーが異なるように設定されているため、成形
時の各成形材料の流れ状態に変化を持たせることができ
て、成形体表面の外観不良の発生を防止することができ
る。As described in detail above, according to the first aspect of the present invention, the flow resistance energy of the first molding material and the second molding material are set to be different from each other. Since the flow state of each molding material can be changed, it is possible to prevent occurrence of poor appearance on the surface of the molding.
【００４１】また、請求項２記載の発明によれば、請求
項１記載の発明の効果に加え、成形体のリブ側に位置す
る第２の成形材料として柄無し成形材料が使用され、か
つその流動抵抗エネルギーが成形体表面側に位置する第
１の成形材料より小さく設定されているため、第２の成
形材料のリブ部への充填で第１の成形材料のリブ部への
充填を阻止できて、柄材が成形体表面に均一に分散して
均一外観を有するＦＲＰ成形体を容易に得ることができ
ると共に、柄入りの高価な第１の成形材料の使用量を低
減させて、より安価なＦＲＰ成形体を得ることができ
る。According to the second aspect of the present invention, in addition to the effects of the first aspect, a patternless molding material is used as the second molding material located on the rib side of the molded body. Since the flow resistance energy is set smaller than that of the first molding material located on the surface side of the molded body, the filling of the first molding material into the ribs can be prevented by filling the second molding material into the ribs. In addition, the pattern material is uniformly dispersed on the surface of the molded body, so that an FRP molded body having a uniform appearance can be easily obtained, and the amount of the expensive patterned first molding material used is reduced, thereby reducing the cost. A compact FRP molded article can be obtained.
【００４２】また、請求項３記載の発明によれば、請求
項１または２記載の発明の効果に加え、第２の成形材料
の流動抵抗エネルギーの所定範囲内の設定で、第２の成
形材料の流動状態を最適にし得て、より安価で均一外観
のＦＲＰ成形体を得ることができる。According to the third aspect of the present invention, in addition to the effects of the first or second aspect, the second molding material is set within a predetermined range of the flow resistance energy of the second molding material. Can be optimized, and a more inexpensive FRP molded article having a uniform appearance can be obtained.
【００４３】また、請求項４記載の発明によれば、請求
項１ないし３記載の発明の効果に加え、第１の成形材料
と第２の成形材料の重量比の所定範囲内の設定で、第１
の成形材料や第２の成形材料の使用量を最適値にし得
て、より一層安価で均一外観のＦＲＰ成形体を得ること
ができる等の効果を奏する。According to the fourth aspect of the present invention, in addition to the effects of the first to third aspects, the weight ratio of the first molding material to the second molding material is set within a predetermined range. First
The amount of the molding material and the amount of the second molding material can be set to the optimum values, and the FRP molded body having a more uniform appearance can be obtained at a lower cost.
【図１】本発明に係わるＦＲＰ成形体としてのユニット
バス用の防水パンの平面図FIG. 1 is a plan view of a waterproof pan for a unit bath as an FRP molded body according to the present invention.
【図２】同図１のＡ部を拡大した縦断面図FIG. 2 is an enlarged longitudinal sectional view of a portion A in FIG. 1;
【図３】同防水パンの成形方法の説明図FIG. 3 is an explanatory view of a method of forming the waterproof pan.
【図４】従来の防水パンの一例を示す平面図FIG. 4 is a plan view showing an example of a conventional waterproof pan.
１・・・・・・・・・防水パン（ＦＲＰ成形体） １ａ・・・・・・・・外周壁 １ｂ・・・・・・・・表面 １ｃ・・・・・・・・裏面 ２・・・・・・・・・リブ ４・・・・・・・・・模様部 ５・・・・・・・・・無模様部 ６・・・・・・・・・第１の層 ７・・・・・・・・・第２の層 ８・・・・・・・・・金型 ９・・・・・・・・・金型 ９ａ・・・・・・・・凹溝 １０・・・・・・・・第１の成形材料 １１・・・・・・・・第２の成形材料 １２・・・・・・・・積層体 1 ······· Waterproof pan (FRP molded body) 1a ······· Outer wall 1b ······ Front surface 1c ········ Back surface 2 · ··········· Rib 4 ···················································· First layer 7 · ······························································ Die 9a ... First molding material 11... Second molding material 12.
フロントページの続き Ｆターム(参考） 2D061 CC05 CC11 4F100 AA18H AG00 AH02H AH08H AK12 AK44 BA02 BA03 BA04 BA05 BA10A BA10C CA19 CA30 DD01B DG03 DH02A DH02B DH02C GB08 HB00A JA20B JL00 YY00B 4F204 AA41 AB01 AB03 AB11 AB16 AD04 AD16 AG03 AH49 FA01 FB01 FB22 FF01 FF47 FF50Continued on front page F-term (reference) 2D061 CC05 CC11 4F100 AA18H AG00 AH02H AH08H AK12 AK44 BA02 BA03 BA04 BA05 BA10A BA10C CA19 CA30 DD01B DG03 DH02A DH02B DH02C GB08 HB00A JA20B JL00 YY11B01A04 AB01 A0418A03A FF01 FF47 FF50
Claims (4)
て、少なくとも、第１の成形材料と、該成形材料と流動
抵抗エネルギーが異なる第２の成形材料と、を組み合わ
せて成形してなることを特徴とするＦＲＰ成形体。1. An FRP molded body having a rib on the back side, which is formed by combining at least a first molding material and a second molding material having a different flow resistance energy from the molding material. An FRP molded article characterized by the above-mentioned.
成され、前記第２の成形材料が柄無し成形材料で第１の
成形材料より流動抵抗エネルギーが小さくかつ前記リブ
側に位置することを特徴とする請求項１記載のＦＲＰ成
形体。2. The method according to claim 1, wherein the first molding material is formed of a patterned molding material, and the second molding material is a non-patterned molding material, and has a lower flow resistance energy than the first molding material and is located on the rib side. The FRP molded article according to claim 1, wherein
対して１／１０〜１／２の流動抵抗エネルギーを有する
ことを特徴とする請求項１または２記載のＦＲＰ成形
体。3. The FRP molded body according to claim 1, wherein the second molding material has a flow resistance energy of 1/10 to 1/2 of that of the first molding material.
その重量比が４：１〜１：４に設定されていることを特
徴とする請求項１ないし３のいずれに記載のＦＲＰ成形
体。4. The first molding material and the second molding material,
The FRP molded product according to any one of claims 1 to 3, wherein the weight ratio is set to 4: 1 to 1: 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001018272A JP2002219765A (en) | 2001-01-26 | 2001-01-26 | Frp molded object |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001018272A JP2002219765A (en) | 2001-01-26 | 2001-01-26 | Frp molded object |
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| Publication Number | Publication Date |
|---|---|
| JP2002219765A true JP2002219765A (en) | 2002-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001018272A Pending JP2002219765A (en) | 2001-01-26 | 2001-01-26 | Frp molded object |
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| Country | Link |
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| JP (1) | JP2002219765A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1571299A2 (en) | 2004-03-01 | 2005-09-07 | Denso Corporation | Bearing support device |
| CN103328178A (en) * | 2011-02-25 | 2013-09-25 | 东丽株式会社 | Method for producing FRP |
| CN106567525A (en) * | 2015-10-12 | 2017-04-19 | 国电科学技术研究院 | Rectangular glass reinforced plastic flue wallboard anti-torque laminated structure |
| WO2020129977A1 (en) * | 2018-12-18 | 2020-06-25 | 本田技研工業株式会社 | Exterior member |
| WO2020129976A1 (en) * | 2018-12-18 | 2020-06-25 | 本田技研工業株式会社 | Decorative molded article |
| WO2020129978A1 (en) * | 2018-12-18 | 2020-06-25 | 本田技研工業株式会社 | Decorative molded component |
-
2001
- 2001-01-26 JP JP2001018272A patent/JP2002219765A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1571299A2 (en) | 2004-03-01 | 2005-09-07 | Denso Corporation | Bearing support device |
| CN103328178A (en) * | 2011-02-25 | 2013-09-25 | 东丽株式会社 | Method for producing FRP |
| CN106567525A (en) * | 2015-10-12 | 2017-04-19 | 国电科学技术研究院 | Rectangular glass reinforced plastic flue wallboard anti-torque laminated structure |
| WO2020129977A1 (en) * | 2018-12-18 | 2020-06-25 | 本田技研工業株式会社 | Exterior member |
| WO2020129976A1 (en) * | 2018-12-18 | 2020-06-25 | 本田技研工業株式会社 | Decorative molded article |
| WO2020129978A1 (en) * | 2018-12-18 | 2020-06-25 | 本田技研工業株式会社 | Decorative molded component |
| JPWO2020129977A1 (en) * | 2018-12-18 | 2021-09-27 | 本田技研工業株式会社 | Exterior material |
| JPWO2020129976A1 (en) * | 2018-12-18 | 2021-10-07 | 本田技研工業株式会社 | Decorative molded products |
| JPWO2020129978A1 (en) * | 2018-12-18 | 2021-11-04 | 本田技研工業株式会社 | Decorative molded products |
| JP7029552B2 (en) | 2018-12-18 | 2022-03-03 | 本田技研工業株式会社 | Exterior material |
| JP7030212B2 (en) | 2018-12-18 | 2022-03-04 | 本田技研工業株式会社 | Decorative molded products |
| JP7057446B2 (en) | 2018-12-18 | 2022-04-19 | 本田技研工業株式会社 | Decorative molded products |
| US11975782B2 (en) | 2018-12-18 | 2024-05-07 | Honda Motor Co., Ltd. | Decorative molded component |
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