JP2008275378A - Double molding and anti-fogging agent film formation method of the double molding - Google Patents

Double molding and anti-fogging agent film formation method of the double molding Download PDF

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JP2008275378A
JP2008275378A JP2007117181A JP2007117181A JP2008275378A JP 2008275378 A JP2008275378 A JP 2008275378A JP 2007117181 A JP2007117181 A JP 2007117181A JP 2007117181 A JP2007117181 A JP 2007117181A JP 2008275378 A JP2008275378 A JP 2008275378A
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molded product
double
agent film
molding
molded
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JP5115787B2 (en
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Toshiaki Nagano
利明 長野
Masaki Honma
政樹 本間
Masayuki Kitamura
正行 北村
Naoki Sato
直樹 佐藤
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Nippon Seiki Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/21—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
    • B60K35/215—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays characterised by the combination of multiple visual outputs, e.g. combined instruments with analogue meters and additional displays

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a double molding and anti-fogging agent film formation method capable of inhibiting occurrence of uneven coating even for the double molding. <P>SOLUTION: The surface case (double molding) 4 is integrally formed by double molding with the see through panel (first molding) 41 composed of the transparent synthetic resin and the frame body (second molding) 42 composed of the opaque synthetic resin, wherein the see through panel 41 which is formed with the anti-fogging agent film 5 is set in the mold, by using the mold with the injection molding, the frame body 42 is formed together with the see through panel 41. Thereby, the occurrence of uneven coating can be inhibited even when unevenness or rising wall is existing. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、例えばオートバイ等の車両に搭載される表示装置の表ケースとして適用される二重成型品に関し、特に防曇剤被膜を有する二重成型品、並びに二重成型品に防曇剤被膜を形成する二重成型品の防曇剤被膜形成方法に係わる。   The present invention relates to a double-molded product applied as a front case of a display device mounted on a vehicle such as a motorcycle, for example, and in particular, a double-molded product having an antifogging agent film, and a double-molded product with an antifogging agent coating The present invention relates to a method for forming an antifogging agent film for a double molded product.

この種の二重成型品として、例えば下記特許文献１に記載されているものが知られている。この二重成型品は、アナログ式計器や電子式表示器、発光式表示器等の表示内機が搭載された回路基板を収納する裏ケースの開口側を覆う表ケースとして用いられるもので、透光性合成樹脂材料からなる透視パネル（第１の成型品）と、不透光性合成樹脂材料からなる枠体（第２の成型品）とを二重成型（予め透光性合成樹脂を用いて射出成型した透視パネルを金型にセットし、その金型内に不透光性合成樹脂を射出して透視パネルと一体に枠体を成型する）にて一体形成してなるもので、透視パネルを通じて表示内機を視認できるように裏ケースの開口側を覆うものである。   As this type of double molded product, for example, one described in Patent Document 1 below is known. This double-molded product is used as a front case that covers the opening side of the back case that houses the circuit board on which the display internal unit such as an analog instrument, an electronic display, and a light emitting display is mounted. Double-molding a transparent panel (first molded product) made of a light-transmitting synthetic resin material and a frame body (second molded product) made of a light-transmitting synthetic resin material (using a light-transmitting synthetic resin in advance) The injection-molded fluoroscopic panel is set in a mold, and a non-transparent synthetic resin is injected into the mold to form a frame integrally with the fluoroscopic panel. The opening side of the back case is covered so that the display internal unit can be seen through the panel.

ところで、例えばオートバイ用の表示装置のように屋外で使用される表示装置にあっては、透視パネルの内面に、例えば界面活性剤からなる防曇剤被膜を設け、透視パネルが曇らないように処理することが一般的である。このような二重成型品からなる成型品に防曇剤被膜を形成する場合、二重成型後に適宜塗布部材を用いて防曇剤を透視パネルの内面に塗布するようにしている。
特開２００６−１８４１５４号公報 By the way, in a display device used outdoors such as a display device for a motorcycle, for example, an antifogging agent film made of, for example, a surfactant is provided on the inner surface of the fluoroscopic panel so that the fluoroscopic panel is not fogged. It is common to do. In the case of forming an antifogging agent film on a molded product made of such a double-molded product, the antifogging agent is applied to the inner surface of the fluoroscopic panel appropriately using an application member after the double molding.
JP 2006-184154 A

しかしながら、二重成型後の表ケース（二重成型品）は、内面部分が平坦ではなく、凹凸や立ち上がり壁が存在するため、塗布部材を用いて防曇剤を塗布すると、凹凸や立ち上がり壁のエッジ部分に塗布しづらく、塗布ムラが生じたり、作業性の悪化により多くの時間を要してしまうといった問題があった。   However, the front case (double-molded product) after double molding is not flat on the inner surface part, and there are irregularities and rising walls. There is a problem that it is difficult to apply to the edge part, application unevenness occurs, and much time is required due to deterioration of workability.

本発明は、この点に鑑みてなされたもので、二重成型品であっても塗布ムラの発生等を抑えることが可能な二重成型品及び二重成型品の防曇剤被膜形成方法を提供するものである。   The present invention has been made in view of this point. A double-molded product and a method for forming an antifogging agent film for a double-molded product that can suppress the occurrence of uneven coating even in the case of a double-molded product. It is to provide.

本発明は、前記目的を達成するため、透光性合成樹脂材料からなる第１の成型品と不透光性合成樹脂材料からなる第２の成型品とを二重成型にて一体形成してなる二重成型品であって、防曇剤被膜を形成してなる前記第１の成型品と前記第２の成型品とを一体形成してなることを特徴とする。   In order to achieve the above object, the present invention integrally forms a first molded product made of a translucent synthetic resin material and a second molded product made of a non-translucent synthetic resin material by double molding. A double-molded product, wherein the first molded product and the second molded product formed with an antifogging agent film are integrally formed.

本発明は、前記目的を達成するため、透光性合成樹脂材料からなる第１の成型品と遮光性合成樹脂材料からなる第２の成型品とを、前記第１，第２の成型品どうしが重なる不透光領域と前記第１，第２の成型品どうしが重ならない透光領域とが形成されるように二重成型してなる二重成型品であって、防曇剤被膜を形成してなる前記第１の成型品と前記第２の成型品とを一体形成することにより、前記第１の成型体において前記透光領域に相当する第１の領域とこの第１の領域に連続する前記第２の成型体との接合面であって前記不透光領域に相当する第２の領域とに前記防曇被膜を連続形成してなること特徴とする。   In order to achieve the above object, the present invention provides a method in which a first molded product made of a light-transmitting synthetic resin material and a second molded product made of a light-shielding synthetic resin material are combined between the first and second molded products. Is a double-molded product formed by double molding so that a non-light-transmitting region where the two and the first and second molded products do not overlap is formed, and an antifogging agent film is formed By integrally forming the first molded product and the second molded product, the first region corresponding to the light transmitting region in the first molded body and the first region are continuous. The antifogging film is formed continuously on a second area corresponding to the non-translucent area, which is a joint surface with the second molded body.

また本発明は、前記目的を達成するため、透光性合成樹脂材料からなる第１の成型品と、不透光性合成樹脂材料からなる第２の成型品とを二重成型にて一体形成してなる二重成型品に防曇剤被膜を形成する二重成型品の防曇剤被膜形成方法であって、前記第１の成型品の片面側に防曇剤被膜を形成する防曇剤皮膜形成工程と、前記防曇剤被膜を形成した前記第１の成型品を金型にセットし、その金型を用いた射出成型にて前記第１の成型品と一体に前記第２の成型品を形成する二重成型工程と、を含むことを特徴とする。   In order to achieve the above object, the present invention integrally forms a first molded product made of a translucent synthetic resin material and a second molded product made of a non-translucent synthetic resin material by double molding. A method for forming an antifogging agent film on a double-molded product, which forms an antifogging agent film on the double-molded product, wherein the antifogging agent forms an antifogging agent film on one side of the first molded product. The film forming step and the first molded article on which the antifogging agent film is formed are set in a mold, and the second molding is integrated with the first molded article by injection molding using the mold. And a double molding step for forming a product.

本発明によれば、初期の目的を達成でき、二重成型品であっても塗布ムラの発生等を抑えることが可能な二重成型品及び二重成型品の防曇剤被膜形成方法を提供することができる。   According to the present invention, there are provided a double-molded product and a method for forming an antifogging agent film for a double-molded product that can achieve the initial purpose and can suppress the occurrence of uneven coating even in the case of a double-molded product. can do.

以下、オートバイ用の表示装置に本発明を適用した一実施例を添付の図面に基づいて説明する。本実施形態による表示装置は、例えば乳白色の合成樹脂からなる裏ケース１と、この裏ケース１内に収納される表示内機２を搭載した回路基板３と、裏ケース１の開口側（前方側または観察者側）を覆う表ケース４とから構成されている。   Hereinafter, an embodiment in which the present invention is applied to a motorcycle display device will be described with reference to the accompanying drawings. The display device according to this embodiment includes, for example, a back case 1 made of milky white synthetic resin, a circuit board 3 on which a display internal unit 2 housed in the back case 1 is mounted, and an opening side (front side) of the back case 1. Or a front case 4 covering the observer side).

表示内機２は、例えばエンジン回転計からなる指針式（アナログ式）計器２１と、例えば液晶パネルからなり走行速度と走行距離をデジタル表示する電子式表示器２２と、後述するマーク部を発光により照らして各種警報・報知情報を発光表示するインジケータ２３とを備えている。   The display unit 2 includes a pointer-type (analog type) instrument 21 made of, for example, an engine tachometer, an electronic display 22 made of, for example, a liquid crystal panel for digitally displaying a traveling speed and a traveling distance, and a mark portion described later by emitting light. An indicator 23 that emits and displays various alarm / notification information in the form of a light is provided.

指針式（アナログ式）計器２１は指針２４と、この指針２４の指示対象となる指標部２５及びインジケータ２３に対応する所定のマーク部２６が印刷されてなる意匠板２７を備え、この意匠板２７の電子式表示器２２に対応する位置は開口部２８が形成され、この開口部２８を通じて電子式表示器２２が露出するようになっている。   The pointer-type (analog-type) instrument 21 includes a design plate 27 on which a needle 24 and a predetermined mark portion 26 corresponding to the indicator portion 25 and the indicator 23 to be indicated by the pointer 24 are printed. An opening 28 is formed at a position corresponding to the electronic display 22, and the electronic display 22 is exposed through the opening 28.

表ケース４は、アクリル，ポリカーボネート等の透光性（透明）合成樹脂からなる透視パネル（第１の成型体）４１と、例えば見返し部材として機能する黒色の遮光性合成樹脂からなる枠体（第２の成型体）４２とからなり、これら透視パネル４１と枠体４２は、後に詳述する二重成型品（一体成型品）からなり、透視パネル４１の内面側、すなわち表示内機２に面する片面側には、防曇剤被膜５が形成されている。   The front case 4 includes a transparent panel (first molded body) 41 made of a light-transmitting (transparent) synthetic resin such as acrylic or polycarbonate, and a frame body made of a black light-shielding synthetic resin that functions as, for example, a turning member (first). 2), and the see-through panel 41 and the frame body 42 are made of a double-molded product (integrated product), which will be described in detail later. An antifogging agent film 5 is formed on one side of the film.

防曇剤被膜５は、例えば非イオン性界面活性剤を適用でき、透視パネル４１の片面側であって、利用者の視線方向からみて透視パネル４１と枠体４２とが重ならない後述する透光（透視）領域Ｔだけでなく、利用者の視線方向からみて透視パネル４１と枠体４２とが重なる（接合される）遮光領域Ｓにも連続して形成されている。   For example, a nonionic surfactant can be applied to the anti-fogging agent film 5, and is on one side of the fluoroscopic panel 41, and the translucent panel 41 and the frame 42 do not overlap with each other when viewed from the user's line of sight. Not only the (perspective) region T but also the light shielding region S where the perspective panel 41 and the frame body 42 are overlapped (joined) as viewed from the user's line of sight.

次に図３に基づいて、防曇剤被膜５を有する表ケース４の成型方法を説明する。   Next, a method for molding the front case 4 having the antifogging agent film 5 will be described with reference to FIG.

ステップＳ１の透視パネル４１成型工程において、透光性合成樹脂の射出成型によって透視パネル４１を成型する。   In the see-through panel 41 molding process of step S1, the see-through panel 41 is formed by injection molding of a translucent synthetic resin.

次にステップＳ２の防曇剤被膜成型工程において、ステップＳ１で成型された透視パネル４１の表示内機２に対面する片面側全域に防曇剤を塗布して防曇剤皮膜５を形成する。防曇剤の塗布は、例えば所定の塗布部材を使用して手作業により行うことができる。   Next, in the antifogging agent film forming step of step S2, an antifogging agent film 5 is formed by applying an antifogging agent to the entire area on one side facing the display internal unit 2 of the fluoroscopic panel 41 formed in step S1. Application of the antifogging agent can be performed manually using, for example, a predetermined application member.

次にステップＳ３の金型セット工程において、ステップＳ２で防曇剤被膜５が形成された透視パネル４１を図示しない金型にセットする。この金型には枠体４２の外形形状に対応した空洞が設けられている。   Next, in the mold setting process of step S3, the see-through panel 41 on which the antifogging agent film 5 is formed in step S2 is set in a mold (not shown). The mold is provided with a cavity corresponding to the outer shape of the frame body 42.

最後にステップＳ４の枠体（二重）成型工程において、ステップＳ３で防曇剤被膜５が形成された透視パネル４１をセットした金型の前記空洞内に遮光性合成樹脂を射出して透視パネル４１と一体に枠体４２を成型する。   Finally, in the frame (double) molding process of step S4, a light-shielding synthetic resin is injected into the cavity of the mold in which the fluoroscopic panel 41 on which the antifogging agent film 5 is formed in step S3 is set, and the fluoroscopic panel is injected. The frame body 42 is molded integrally with 41.

このように二重成型された表ケース４は、図２に示すように、透視パネル４１と枠体４２とが利用者の視線方向からみて重なるように接合する不透光領域Ｓと、透視パネル４１と枠体４２とが利用者の視線方向からみて重ならない透光領域Ｔとを有し、また表ケース４の表示内機２に対面する片面側の形状は、平坦ではなく、複数の立ち上がり壁４３によって凹凸形状となるが、防曇剤被膜５は、このような凹凸とは無関係に、透視パネル４１の表示内機２に対面する片面側において、透光領域Ｔに相当する第１の領域Ａ１と、この第１の領域Ａ１に連続する枠体４２との接合面であって不透光領域Ｓに相当する第２の領域Ａ２との両領域を隙間無く覆うように連続して設けられる。   As shown in FIG. 2, the double-molded front case 4 includes an opaque region S where the transparent panel 41 and the frame 42 are joined so as to overlap each other when viewed from the user's line of sight, and the transparent panel 41 and the frame 42 have a light-transmitting region T that does not overlap when viewed from the user's line of sight, and the shape of the one side facing the display internal unit 2 of the front case 4 is not flat and has a plurality of rising edges. Although the wall 43 has an uneven shape, the anti-fogging agent film 5 has a first surface corresponding to the translucent region T on one side facing the display internal unit 2 of the transparent panel 41 regardless of the unevenness. Provided continuously so as to cover both the area A1 and the second area A2 corresponding to the opaque area S, which is a joint surface between the area A1 and the frame body 42 continuing to the first area A1. It is done.

以上のように本実施形態は、透光性合成樹脂材料からなる透視パネル（第１の成型品）４１と、不透光性合成樹脂材料からなる枠体（第２の成型品）４２とを二重成型にて一体形成してなる表ケース（二重成型品）４であって、防曇剤被膜５を形成してなる透視パネル４１を金型にセットし、その金型を用いた射出成型にて枠体４２を透視パネル４１と一体に形成してなることにより、表ケース（二重成型品）の防曇剤を塗布すべき面が平坦ではなく、凹凸や立ち上がり壁が存在する場合でも、塗布ムラの発生を抑えることができ、また塗布作業性を良好にして作業時間の短縮を可能とし、コストダウンを達成することができる。   As described above, in the present embodiment, the transparent panel (first molded product) 41 made of a translucent synthetic resin material and the frame body (second molded product) 42 made of an opaque translucent synthetic resin material are used. A front panel (double-molded product) 4 integrally formed by double molding, and a perspective panel 41 formed with an antifogging agent film 5 is set in a mold, and injection using the mold When the frame 42 is formed integrally with the see-through panel 41 by molding, the surface of the front case (double-molded product) to which the antifogging agent should be applied is not flat, and there are irregularities and rising walls However, the occurrence of uneven coating can be suppressed, the workability can be improved, the working time can be shortened, and the cost can be reduced.

特に本実施形態のように、インジケータ２３に対応する筒状の立ち上がり壁４３のように、開口径が小さい立ち上がり壁４３に囲まれた透視パネル４１の片面領域は、防曇剤の塗布が極めて困難であるが、本発明を適用することにより、そのような領域であっても困難なく防曇剤被膜５設けることができる。   In particular, as in the present embodiment, the antifogging agent is extremely difficult to be applied to the single-sided region of the fluoroscopic panel 41 surrounded by the rising wall 43 having a small opening diameter, such as the cylindrical rising wall 43 corresponding to the indicator 23. However, by applying the present invention, the antifogging agent film 5 can be provided without difficulty even in such a region.

本発明の一実施形態を示す表示装置の正面図。The front view of the display apparatus which shows one Embodiment of this invention. 図１のＡ−Ａ断面図。AA sectional drawing of FIG. 同実施形態における防曇剤被膜を有する表ケースの成型方法を説明するブロック図。The block diagram explaining the shaping | molding method of the front case which has an antifogging agent film in the embodiment.

符号の説明Explanation of symbols

１ 裏ケース
２ 表示内機
３ 回路基板
４ 表ケース
５ 防曇剤被膜
２１ 指針式計器
２２ 電子式表示器
２３ インジケータ
２４ 指針
２５ 指標部
２６ マーク部
２７ 意匠板
２８ 開口部
４１ 透視パネル（第１の成型体）
４２ 枠体（第２の成型体）
４３ 立ち上がり壁
Ｔ 透光領域
Ｓ 遮光領域
Ａ１ 第１の領域
Ａ２ 第２の領域 DESCRIPTION OF SYMBOLS 1 Back case 2 Display internal unit 3 Circuit board 4 Front case 5 Anti-fogging agent film | membrane 21 Pointer-type meter 22 Electronic indicator 23 Indicator 24 Pointer 25 Index part 26 Mark part 27 Design board 28 Opening part 41 Perspective panel (1st Molded body)
42 Frame (second molded body)
43 Standing wall T Translucent area S Light-shielding area
A1 first area A2 second area

Claims (3)

透光性合成樹脂材料からなる第１の成型品と不透光性合成樹脂材料からなる第２の成型品とを二重成型にて一体形成してなる二重成型品であって、
防曇剤被膜を形成してなる前記第１の成型品と前記第２の成型品とを一体形成してなることを特徴とする二重成型品。 A double-molded product obtained by integrally forming a first molded product made of a translucent synthetic resin material and a second molded product made of a non-translucent synthetic resin material by double molding,
A double-molded product comprising the first molded product and the second molded product formed by forming an antifogging agent film integrally. 透光性合成樹脂材料からなる第１の成型品と遮光性合成樹脂材料からなる第２の成型品とを、前記第１，第２の成型品どうしが重なる不透光領域と前記第１，第２の成型品どうしが重ならない透光領域とが形成されるように二重成型してなる二重成型品であって、
防曇剤被膜を形成してなる前記第１の成型品と前記第２の成型品とを一体形成することにより、前記第１の成型体において前記透光領域に相当する第１の領域とこの第１の領域に連続する前記第２の成型体との接合面であって前記不透光領域に相当する第２の領域とに前記防曇被膜を連続形成してなること特徴とする二重成型品。 A first molded product made of a light-transmitting synthetic resin material and a second molded product made of a light-shielding synthetic resin material are combined with an opaque region where the first and second molded products overlap each other and the first and second molded products. A double-molded product formed by double-molding so as to form a light-transmitting region where the second molded products do not overlap,
By integrally forming the first molded product and the second molded product formed by forming an antifogging agent film, the first region corresponding to the light-transmitting region in the first molded body and this The double layer characterized in that the anti-fogging film is continuously formed on the second region corresponding to the non-light-transmitting region, which is a joint surface with the second molded body continuing to the first region. Molded product. 透光性合成樹脂材料からなる第１の成型品と、不透光性合成樹脂材料からなる第２の成型品とを二重成型にて一体形成してなる二重成型品に防曇剤被膜を形成する二重成型品の防曇剤被膜形成方法であって、
前記第１の成型品の片面側に防曇剤被膜を形成する防曇剤皮膜形成工程と、
前記防曇剤被膜を形成した前記第１の成型品を金型にセットし、その金型を用いた射出成型にて前記第１の成型品と一体に前記第２の成型品を形成する二重成型工程と、
を含むことを特徴とする二重成型品の防曇剤被膜形成方法。 An antifogging agent coating on a double molded product formed by integrally forming a first molded product made of a translucent synthetic resin material and a second molded product made of a non-translucent synthetic resin material. A method for forming an anti-fogging agent film of a double-molded article,
An antifogging agent film forming step of forming an antifogging agent film on one side of the first molded article;
The first molded product on which the antifogging agent film is formed is set in a mold, and the second molded product is formed integrally with the first molded product by injection molding using the mold. Heavy molding process,
A method for forming an antifogging agent film for a double-molded product, comprising:
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