JPH0655671A - Bathtub and manufacture thereof - Google Patents
Bathtub and manufacture thereofInfo
- Publication number
- JPH0655671A JPH0655671A JP4235438A JP23543892A JPH0655671A JP H0655671 A JPH0655671 A JP H0655671A JP 4235438 A JP4235438 A JP 4235438A JP 23543892 A JP23543892 A JP 23543892A JP H0655671 A JPH0655671 A JP H0655671A
- Authority
- JP
- Japan
- Prior art keywords
- surface layer
- layer
- bathtub
- resin material
- vacuum forming
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 239000002344 surface layer Substances 0.000 claims abstract description 54
- 229920005989 resin Polymers 0.000 claims abstract description 40
- 239000011347 resin Substances 0.000 claims abstract description 40
- 239000010410 layer Substances 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 28
- 238000007666 vacuum forming Methods 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 239000006260 foam Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 230000003245 working effect Effects 0.000 abstract 1
- 238000000465 moulding Methods 0.000 description 7
- 229920001187 thermosetting polymer Polymers 0.000 description 4
- 238000005187 foaming Methods 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000009787 hand lay-up Methods 0.000 description 2
- 239000011256 inorganic filler Substances 0.000 description 2
- 229910003475 inorganic filler Inorganic materials 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920006337 unsaturated polyester resin Polymers 0.000 description 2
- HECLRDQVFMWTQS-RGOKHQFPSA-N 1755-01-7 Chemical compound C1[C@H]2[C@@H]3CC=C[C@@H]3[C@@H]1C=C2 HECLRDQVFMWTQS-RGOKHQFPSA-N 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229920005669 high impact polystyrene Polymers 0.000 description 1
- 239000004797 high-impact polystyrene Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920006327 polystyrene foam Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 229920006305 unsaturated polyester Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】この発明は浴槽及びその製造方法
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bathtub and a manufacturing method thereof.
【0002】[0002]
【従来の技術及び発明が解決しようとする課題】従来、
樹脂浴槽にはSMC,BMC等ガラス繊維を含有した樹
脂材料をプレス成形して成るもの,所定の成形型のキャ
ビティに流動状態の樹脂材料を注入・固化させて成るキ
ャスト成形によるもの,ハンドレイアップ,スプレーア
ップ等の手段にて成形したFRP浴槽,真空成形して成
る表面層の裏側をFRP層にてバックアップし、補強し
て成るもの等、種々のものが知られている。2. Description of the Related Art Conventionally, the problems to be solved by the invention
The resin bath is made by press molding a resin material containing glass fibers such as SMC, BMC, cast molding by pouring and solidifying the resin material in a fluid state into the cavity of a predetermined mold, hand lay-up There are various known types, such as a FRP bath formed by means such as spray-up, and a back side of a vacuum formed surface layer backed up by an FRP layer for reinforcement.
【0003】このうち、表面層を真空成形して成る真空
成形浴槽は型代が安価であり、また綺麗な表面状態のも
のが得られ易い等利点を有している反面、FRPによる
バックアップが必要であることに起因して次のような不
具合を生じていた。Of these, the vacuum forming bath formed by vacuum forming the surface layer has the advantages that the die cost is low and that a clean surface state is easily obtained, but it requires backup by FRP. However, the following problems have occurred.
【0004】真空成形浴槽の場合、厚みのコントロ−ル
が困難であって肉厚を厚くすることができないことから
強度が弱く、そこでFRPによるバックアップが行われ
るのであるが、この浴槽においてFRPのバックアップ
層を形成する作業は、スプレーアップにしろハンドレイ
アップにしろ殆ど手作業に近い作業であって作業に多大
な手間と長い時間とがかかり、加えて作業環境が悪いと
いった問題があるのである。In the case of a vacuum forming bath, it is difficult to control the thickness and the wall thickness cannot be increased. Therefore, the strength is weak, and backup by FRP is performed there. The work for forming the layer is almost a manual work, whether it is spray-up or hand-layup, and it takes a lot of time and a long time, and there is a problem that the working environment is bad.
【0005】[0005]
【課題を解決するための手段】本願の発明はこのような
課題を解決するためになされたものである。而して本願
の第一の発明は浴槽の製造方法に係るもので、浴槽表面
層を真空成形にて成形するとともに、浴槽裏面層を真空
成形若しくはプレス成形にて成形し、該表面層と裏面層
とをそれらの間に所定の空間を形成する状態に配置して
該空間に液状の樹脂材を注入し、しかる後該注入した樹
脂材を発泡ないし硬化させて該空間を発泡ないし硬化さ
せた樹脂材で充填すると同時に該表面層,裏面層を固着
一体化することを特徴とする(請求項1)。The invention of the present application has been made to solve such a problem. Thus, the first invention of the present application relates to a method for manufacturing a bathtub, in which the bathtub surface layer is formed by vacuum forming and the bathtub back surface layer is formed by vacuum forming or press forming, and the surface layer and the back surface are formed. The layer and the layer are arranged so as to form a predetermined space therebetween, and a liquid resin material is injected into the space, and then the injected resin material is foamed or cured to foam or cure the space. At the same time as filling with the resin material, the front surface layer and the back surface layer are fixed and integrated (Claim 1).
【0006】本願の別の発明は、前記浴槽裏面層の成形
時に浴槽の脚を同時に且つ一体に成形することを特徴と
する(請求項2)。Another invention of the present application is characterized in that the legs of the bathtub are simultaneously and integrally formed when the backside layer of the bathtub is formed (claim 2).
【0007】本願の更に別の発明は浴槽に係るもので、
真空成形してなる浴槽表面層と、真空成形若しくはプレ
ス成形してなる浴槽裏面層と、それら表面層と裏面層と
の間の空間に充填された樹脂発泡体ないし硬化体から成
る中間層との積層構造を有することを特徴とする(請求
項3)。Still another invention of the present application relates to a bathtub,
A bath surface layer formed by vacuum forming, a back surface layer formed by vacuum forming or press forming, and an intermediate layer made of a resin foam or a cured body filled in the space between the surface layer and the back surface. It has a laminated structure (Claim 3).
【0008】[0008]
【作用及び発明の効果】以上のように本発明は真空成形
した表面層の裏側にFRPのバックアップ層を形成する
ことをせず、かかる表面層の裏側に同じく真空成形若し
くはプレス成形した裏面層を表面層との間に所定の隙間
(空間)を形成する状態で配置し、そこに液状の樹脂材
を注入して発泡ないし硬化させ、空間を充填するもので
ある。As described above, the present invention does not form a back-up layer of FRP on the back side of a vacuum-formed surface layer, but also forms a vacuum-formed or press-formed back surface layer on the back side of such a surface layer. It is arranged such that a predetermined gap (space) is formed between the surface layer and the surface layer, and a liquid resin material is injected therein to foam or cure to fill the space.
【0009】本発明によれば、真空成形浴槽を製造する
に際して面倒且つ多大な手間のかかるFRP層の成形を
行わなくても良く、しかも裏面層成形,中間層の成形は
短時間で簡単に行い得るから、全体として浴槽の製造が
容易となり、生産性も大幅に向上する。また良好な作業
環境の下で作業を行うことができる。According to the present invention, it is not necessary to form the FRP layer which is troublesome and time-consuming when manufacturing the vacuum forming bath, and the back layer and the intermediate layer can be formed easily in a short time. As a result, it becomes easier to manufacture the bathtub as a whole and the productivity is significantly improved. Further, it is possible to work under a good working environment.
【0010】本発明においては、表面層と裏面層との間
隔を適宜に選定することによって、浴槽の全体的な厚み
を容易にコントロ−ルすることができる。In the present invention, the overall thickness of the bath can be easily controlled by appropriately selecting the distance between the front surface layer and the back surface layer.
【0011】また表面層と裏面層との間に発泡性の樹脂
材を注入して発泡させた場合、即ち中間層として樹脂発
泡体を用いた場合、浴槽の断熱性を効果的に高めること
ができる。When a foamable resin material is injected between the front surface layer and the back surface layer to foam, that is, when a resin foam is used as the intermediate layer, the heat insulation of the bath can be effectively improved. it can.
【0012】また本発明においては、裏面層成形時にか
かる裏面層に浴槽の脚を同時に一体に成形することが可
能であり、この場合浴槽の脚形成のために従来要してい
た面倒な二次加工を不要化できる利点が得られる。Further, according to the present invention, the legs of the bathtub can be simultaneously formed integrally with the backside layer at the time of forming the backside layer, and in this case, the troublesome secondary process conventionally required for forming the legs of the bathtub. The advantage that processing is unnecessary can be obtained.
【0013】従来、真空成形浴槽において脚の形成は、
FRPのバックアップ層の上に予め用意した脚を接着
し、その上に所定寸法のガラスマットを載せて液状樹脂
を含浸させ、しかる後ローラでしごいて泡を抜く等の作
業を行って補強していたが、本発明によればこうした面
倒な作業を省略することが可能となる。Conventionally, leg formation in a vacuum forming bath is
Adhere the legs prepared in advance on the backup layer of the FRP, place a glass mat of a predetermined size on it and impregnate it with liquid resin, and then squeeze with a roller to remove bubbles and reinforce it. However, according to the present invention, such troublesome work can be omitted.
【0014】加えて本発明によれば表面層,中間層,裏
面層の積層構造によって所定の強度,剛性を確保できる
ことから、樹脂材としてガラス繊維,無機フィラー等の
補強材を含有する樹脂材を用いなくても良く、この場合
浴槽の廃棄処分が容易である利点が得られる。In addition, according to the present invention, since a predetermined strength and rigidity can be secured by the laminated structure of the surface layer, the intermediate layer and the back surface layer, a resin material containing a reinforcing material such as glass fiber or an inorganic filler is used as the resin material. It is not necessary to use it, and in this case, there is an advantage that the disposal of the bathtub is easy.
【0015】[0015]
【実施例】次に本発明の実施例を図面に基づいて詳しく
説明する。図1において10は真空成形浴槽で、表面層
12と裏面層14と中間層16の積層構造、即ちサンド
イッチ構造を成している。Embodiments of the present invention will now be described in detail with reference to the drawings. In FIG. 1, reference numeral 10 denotes a vacuum forming bath, which has a laminated structure of a front surface layer 12, a back surface layer 14, and an intermediate layer 16, that is, a sandwich structure.
【0016】表面層12は樹脂シートを真空成形して成
るもので厚さ1〜5mmを有し、また裏面層14は樹脂
シートを真空成形若しくはプレス成形して成るもので厚
さ0.5〜4mmを有している。この裏面層14には浴
槽の脚18が一体成形されている。The front surface layer 12 is formed by vacuum forming a resin sheet and has a thickness of 1 to 5 mm. The back surface layer 14 is formed by vacuum forming or press forming a resin sheet and has a thickness of 0.5 to 0.5 mm. It has 4 mm. The legs 18 of the bathtub are integrally formed on the back surface layer 14.
【0017】中間層16は、それら表面層12と裏面層
14との間の空間に液状の樹脂材を注入し、そしてこれ
を発泡させて同空間に充満させるか、又は同空間を埋め
るように熱硬化性樹脂を注入し、これを硬化させて成る
ものである。The intermediate layer 16 is formed by injecting a liquid resin material into the space between the front surface layer 12 and the back surface layer 14 and foaming the resin material to fill the same space or fill the same space. It is formed by injecting a thermosetting resin and curing it.
【0018】尚この中間層16は排水口部位及び排水栓
用の鎖止め部位において部分的に形成されておらず、同
部分では表面層12と裏面層14とが直接接触させられ
ている。The intermediate layer 16 is not partially formed at the drainage port portion and the chain stopper portion for drainage taps, and the front surface layer 12 and the back surface layer 14 are in direct contact with each other at the same portion.
【0019】ここで表面層12の材料としては、浴槽表
面材として質感が高く、耐熱水性が良好で耐薬品性に優
れ且つ真空成形し易いものが望ましく、この意味におい
てアクリル樹脂,ポリプロピレン樹脂,ポリカーボネー
ト樹脂等を用いるのが良い。The material of the surface layer 12 is preferably a material having a high texture as a bath surface material, good hot water resistance, excellent chemical resistance, and easy to vacuum form. In this sense, acrylic resin, polypropylene resin, polycarbonate It is preferable to use a resin or the like.
【0020】一方裏面層14としてはABS樹脂,HI
PS(ハイインパクトポリスチレン)樹脂,ポリプロピ
レン樹脂,ポリ塩化ビニル樹脂,紫外線硬化不飽和ポリ
エステル樹脂等を真空成形したもの,或いは不飽和ポリ
エステル/ガラスのSMC成形したものを好適に用いる
ことができる。On the other hand, as the back surface layer 14, ABS resin, HI
A product obtained by vacuum-molding a PS (high-impact polystyrene) resin, a polypropylene resin, a polyvinyl chloride resin, an ultraviolet-curable unsaturated polyester resin, or the like, or an SMC-molded unsaturated polyester / glass can be preferably used.
【0021】他方中間層16としてはポリウレタンフォ
ーム,ポリエチレンフォーム,ポリスチレンフォーム等
の発泡体,キャスト成形,RIM成形可能なウレタン系
樹脂,エポキシ系樹脂,ジシクロペンタジエン系樹脂,
不飽和ポリエステル樹脂等の熱硬化性樹脂を用いること
ができる。On the other hand, the intermediate layer 16 is a foam such as polyurethane foam, polyethylene foam, polystyrene foam, cast molding, urethane resin capable of RIM molding, epoxy resin, dicyclopentadiene resin,
A thermosetting resin such as an unsaturated polyester resin can be used.
【0022】図2は本例の浴槽10の具体的製造手順を
示したものである。図示のように本方法では表面層12
及び裏面層14を予め真空成形若しくはプレス成形にて
用意しておき、そしてそれらの間に所定の隙間が生じる
ように表面層12及び裏面層14を互いに重ね合わせ
る。FIG. 2 shows a specific manufacturing procedure of the bath 10 of this embodiment. As shown, in this method, the surface layer 12
The back surface layer 14 and the back surface layer 14 are prepared in advance by vacuum molding or press molding, and the front surface layer 12 and the back surface layer 14 are superposed on each other so that a predetermined gap is formed therebetween.
【0023】しかる後それらの間の空間に液状の発泡性
樹脂材又は熱硬化性樹脂材を注入し、そしてその状態で
これを炉に入れて注入した液状樹脂材を発泡反応又は硬
化反応させる。Then, a liquid foamable resin material or a thermosetting resin material is injected into the space between them, and in that state, this is put into a furnace to cause the injected liquid resin material to undergo a foaming reaction or a curing reaction.
【0024】尚樹脂材として発泡性材料を用いる場合に
は、発泡後において樹脂材が表面層12と裏面層14と
の間の空間を埋める状態となるように注入する必要があ
るが、熱硬化性樹脂を用いる場合には、表面層12と裏
面層との間の空間を埋めるまで液状樹脂材を注入するこ
とが必要である。When a foamable material is used as the resin material, it is necessary to inject the resin material so as to fill the space between the front surface layer 12 and the rear surface layer 14 after foaming, but it is thermosetting. When a resin composition is used, it is necessary to inject the liquid resin material until the space between the front surface layer 12 and the back surface layer is filled.
【0025】尚、表面層12として透明な樹脂を用い、
中間層16には顔料等により所望の色彩,模様を施せ
ば、深みのある色彩,模様の浴槽が得られる。A transparent resin is used as the surface layer 12,
By applying a desired color or pattern to the intermediate layer 16 with a pigment or the like, a bath having a deep color or pattern can be obtained.
【0026】以上から明らかなように、本例によれば容
易に真空成形浴槽10を製造することができ、しかも十
分な強度を持たせることができる。またこの方法ではガ
ラス繊維や無機フィラーを含有しない樹脂材にて浴槽を
製造することができ、浴槽の廃棄処理に際しての問題解
決に貢献することができる。As is clear from the above, according to this example, the vacuum forming bath 10 can be easily manufactured, and moreover, sufficient strength can be provided. Further, according to this method, a bathtub can be manufactured from a resin material containing neither glass fiber nor inorganic filler, which can contribute to solving a problem in waste treatment of the bathtub.
【0027】以上本発明の実施例を詳述したがこれはあ
くまで一例示であり、本発明はその主旨を逸脱しない範
囲において、当業者の知識に基づき様々な変更を加えた
態様・形態で実施・構成可能である。The embodiment of the present invention has been described in detail above, but this is merely an example, and the present invention is embodied in various modes and modes with various modifications made based on the knowledge of those skilled in the art without departing from the spirit of the invention. -Configurable.
【図1】本発明の一実施例である真空成形浴槽の断面図
である。FIG. 1 is a cross-sectional view of a vacuum forming bath which is an embodiment of the present invention.
【図2】本発明の一実施例である浴槽製造方法の工程説
明図である。FIG. 2 is a process explanatory view of a bathtub manufacturing method which is an embodiment of the present invention.
10 浴槽 12 表面層 14 裏面層 16 中間層 18 脚 10 Bathtub 12 Surface layer 14 Backside layer 16 Middle layer 18 Legs
───────────────────────────────────────────────────── 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 22:00 4F 31:44 4F ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location B29L 22:00 4F 31:44 4F
Claims (3)
もに、浴槽裏面層を真空成形若しくはプレス成形にて成
形し、該表面層と裏面層とをそれらの間に所定の空間を
形成する状態に配置して該空間に液状の樹脂材を注入
し、しかる後該注入した樹脂材を発泡ないし硬化させて
該空間を発泡ないし硬化させた樹脂材で充填すると同時
に該表面層,裏面層を固着一体化することを特徴とする
浴槽の製造方法。1. A state in which a bath surface layer is formed by vacuum forming and a bath back surface is formed by vacuum forming or press forming to form a predetermined space between the front surface layer and the back surface layer. Liquid resin material is injected into the space, and then the injected resin material is foamed or hardened to fill the space with the foamed or hardened resin material and at the same time the front surface layer and the back surface layer are fixed. A method for manufacturing a bathtub, characterized by being integrated.
時に且つ一体に成形することを特徴とする請求項1に記
載の浴槽の製造方法。2. The method for manufacturing a bathtub according to claim 1, wherein the legs of the bathtub are simultaneously and integrally formed when the backside layer of the bathtub is formed.
形若しくはプレス成形してなる浴槽裏面層と、それら表
面層と裏面層との間の空間に充填された樹脂発泡体ない
し硬化体から成る中間層との積層構造を有する浴槽。3. A bath surface layer formed by vacuum forming, a bath back surface layer formed by vacuum forming or press forming, and a resin foam or a cured body filled in a space between the front surface layer and the back surface layer. A bath having a laminated structure with the intermediate layer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4235438A JPH0655671A (en) | 1992-08-11 | 1992-08-11 | Bathtub and manufacture thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4235438A JPH0655671A (en) | 1992-08-11 | 1992-08-11 | Bathtub and manufacture thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0655671A true JPH0655671A (en) | 1994-03-01 |
Family
ID=16986116
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4235438A Pending JPH0655671A (en) | 1992-08-11 | 1992-08-11 | Bathtub and manufacture thereof |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0655671A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0624447A1 (en) * | 1993-05-11 | 1994-11-17 | Rp Topla Limited | Method for manufacturing synthetic resin containers |
JP2007168211A (en) * | 2005-12-21 | 2007-07-05 | Matsushita Electric Works Ltd | Method for manufacturing molding and molding |
CN115214213A (en) * | 2022-07-31 | 2022-10-21 | 广州恺创新材料技术有限公司 | Light heat-insulation bathtub and preparation method thereof |
-
1992
- 1992-08-11 JP JP4235438A patent/JPH0655671A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0624447A1 (en) * | 1993-05-11 | 1994-11-17 | Rp Topla Limited | Method for manufacturing synthetic resin containers |
JP2007168211A (en) * | 2005-12-21 | 2007-07-05 | Matsushita Electric Works Ltd | Method for manufacturing molding and molding |
CN115214213A (en) * | 2022-07-31 | 2022-10-21 | 广州恺创新材料技术有限公司 | Light heat-insulation bathtub and preparation method thereof |
CN115214213B (en) * | 2022-07-31 | 2024-06-07 | 广州恺创新材料技术有限公司 | Light heat-insulating bathtub and preparation method thereof |
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