JP2002178362A - Synthetic resin molding and its production method - Google Patents
Synthetic resin molding and its production methodInfo
- Publication number
- JP2002178362A JP2002178362A JP2000379319A JP2000379319A JP2002178362A JP 2002178362 A JP2002178362 A JP 2002178362A JP 2000379319 A JP2000379319 A JP 2000379319A JP 2000379319 A JP2000379319 A JP 2000379319A JP 2002178362 A JP2002178362 A JP 2002178362A
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- molded product
- resin molded
- sheet
- opaque
- 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.)
- Granted
Links
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、バックライティン
グ(製品の後方あるいは横方向から光を当てて前面から
見た場合に印刷された絵柄や文字が明るく見えること)
可能な印刷面を有する異質な表面層又は裏面層を有する
合成樹脂成形品に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to backlighting (printed patterns and characters appearing bright when viewed from the front by illuminating the product from behind or from the side).
The present invention relates to a synthetic resin molded article having a foreign surface layer or a back surface layer having a possible printing surface.
【0002】[0002]
【従来の技術】自動車の計器盤や空調用パネル或はオー
ディオ製品の前面パネル等はバックライティングするこ
とによって前面に印刷された絵柄や文字又はその周辺を
光が透過するようにしている。このような絵柄や文字は
合成樹脂シートや合成樹脂成形品に印刷をすることによ
って製造されるものである。2. Description of the Related Art An instrument panel of an automobile, a panel for air conditioning, or a front panel of an audio product is backlit so that light is transmitted through a pattern or a character printed on the front surface or the periphery thereof. Such pictures and characters are produced by printing on a synthetic resin sheet or a synthetic resin molded product.
【0003】ところで、合成樹脂シート(以下、シート
と略称する場合がある)に印刷する場合は、広い面積の
シートを用いて多数個の製品を印刷生産することが可能
であるが、合成樹脂成形品(以下、成形品と略称する場
合がある)に印刷する場合は、種々の問題点が生じる。When printing on a synthetic resin sheet (hereinafter sometimes abbreviated as a sheet), a large number of products can be printed and produced using a sheet having a large area. When printing on a product (hereinafter sometimes abbreviated as a molded product), various problems occur.
【0004】即ち、成形品に印刷する場合、成形品を固
定するセット治具の製作が複雑で高価であり、成形品の
バラツキによって品質の高い製品が得られず、歩留まり
が低い結果になる。That is, when printing on a molded product, the production of a set jig for fixing the molded product is complicated and expensive, and a high quality product cannot be obtained due to the variation of the molded product, resulting in a low yield.
【0005】また、シートに対する印刷に比べて2倍前
後の作業員を必要とする。[0005] In addition, it requires about twice as many workers as printing on a sheet.
【0006】さらに、多色刷りの場合に塵埃を取り除く
洗浄作業において成形品が欠けたり出張り部分が欠け落
ちたりする。Further, in the case of multicolor printing, a molded product is chipped or a projecting portion is chipped during a cleaning operation for removing dust.
【0007】また、成形品が平らであってもセット治具
との関係で微妙に湾曲したりすることがあるため品質の
低下、従って歩留まりを低下させる原因となる。Further, even if the molded product is flat, it may be slightly curved in relation to the set jig, which causes a decrease in quality and a decrease in yield.
【0008】さらに、成形品が単曲面或は複曲面である
場合、パッド印刷という特殊印刷方式を除いては印刷す
ることが不可能であるが、このパッド印刷によった場
合、自動車の計器盤や空調用パネル或はオーディオ製品
等に用いる成形品に対してバックライティングを行う
と、浮き立たせる絵柄や文字にピンホールが現れたり、
それ以外の部分(黒地が多い)に満天の星の如き漏光が
生じ、本来の目的を達し得ないという問題点がある。Further, when the molded product has a single curved surface or a multi-curved surface, it is impossible to perform printing except for a special printing method called pad printing. When performing backlighting on molded products used for air conditioners, panels for air conditioning, audio products, etc., pinholes appear in the embossed patterns and characters,
There is a problem that light leakage occurs in other parts (mostly on a black background) like a star in the sky, and the original purpose cannot be achieved.
【0009】また、成形品に印刷面を施すには、上記の
如く成形品に印刷する以外に次の方式がある。[0009] In addition to printing on a molded article as described above, there are the following methods for applying a printed surface to the molded article.
【0010】一つは、サイマルトランサー・システム
(インモールド)と呼ばれるもので、射出成形金型内に
転写箔を位置せしめて送り込み成形工程と転写絵付工程
を一体化させる成形システムである。この方式は、フィ
ルムに印刷されたインキ膜のみを成形時に成形品に転写
するため、成形品に発生するウエルドラインやゲートマ
ークを隠しきれず外観を損なうという問題がある。[0010] One is a so-called simul transer system (in-mold), which is a molding system in which a transfer foil is positioned in an injection-molding die to integrate a feed-molding step and a transfer-painting step. In this method, since only the ink film printed on the film is transferred to a molded product at the time of molding, there is a problem that a weld line and a gate mark generated in the molded product cannot be completely hidden and the appearance is impaired.
【0011】二つには、シートトランスファー・システ
ム(熱転写)と呼ばれるもので、フィルムに印刷された
印刷部分(意匠)をホットスタンプ装置を用いて成形品
に熱転写する方式である。この場合、成形品が平面であ
るものに限られるという問題がある。[0011] The second is a so-called sheet transfer system (thermal transfer) in which a printed portion (design) printed on a film is thermally transferred to a molded product by using a hot stamping device. In this case, there is a problem that the molded product is limited to a flat product.
【0012】本発明者は、上記の種々の問題点を解消す
べく、特願昭63−129693号(特許第21273
83号)にて、次の如き合成樹脂成形品を案出した。The present inventor has made Japanese Patent Application No. 63-129693 (Japanese Patent No. 21273) in order to solve the above various problems.
No. 83), the following synthetic resin molded article was devised.
【0013】即ち、厚み4μ以上の単層で使用するイン
ク膜層又は厚み8μ以上の二層以上で使用するインキ膜
層を有するように印刷した、厚み0.1〜2.0mmの合
成樹脂シートをその表面または裏面に溶着接合して成る
異質な表面層または裏面層を有するバックライティング
可能な合成樹脂成形品を構成するものである。That is, a synthetic resin sheet having a thickness of 0.1 to 2.0 mm printed so as to have an ink film layer used as a single layer having a thickness of 4 μ or more or an ink film layer used as two or more layers having a thickness of 8 μ or more. Is welded to the front or back surface to form a backlit synthetic resin molded product having a foreign surface layer or back surface layer.
【0014】また、その製造方法に関して、厚み0.1
〜2.0mmの合成樹脂シートに厚み4μ以上の単層で使
用するインク膜層又は厚み8μ以上の二層で使用するイ
ンキ膜層を有するように印刷し、これを金型内に装填す
ることができる形状に加工した後、金型内表面に隣接す
るように装填し、しかる後、金型を閉じてから溶融樹脂
を該金型内に射出して異質な表面層または裏面層を有す
るバックライティング可能な合成樹脂成形品を得るもの
である。Further, regarding the manufacturing method, a thickness of 0.1
To print on a synthetic resin sheet with a thickness of up to 2.0 mm so as to have an ink film layer used as a single layer with a thickness of 4 μ or more or an ink film layer used with two layers with a thickness of 8 μ or more, and to load this into a mold. After processing into a shape capable of forming a mold, it is loaded so as to be adjacent to the inner surface of the mold, and then, after closing the mold, the molten resin is injected into the mold to form a bag having a foreign surface layer or a back surface layer. The object is to obtain a synthetic resin molded product that can be written.
【0015】このような合成樹脂成形品或は製造方法に
より、成形品の側面にもインク膜厚の厚い印刷面を容易
に保持させることができ、単曲面又は複曲面を有する成
形品の表面又は裏面にインキ膜層の厚い印刷面を容易に
付与できるバックライティング可能な成形品を高生産
性、低不良率、低コストにて製造することができ、さら
にはウエルドラインやゲートマークのない外観の美麗性
を有した成形品を得ることが可能となった。According to such a synthetic resin molded product or manufacturing method, a printed surface having a large ink film thickness can be easily held on the side surface of the molded product, and the surface of the molded product having a single curved surface or a double curved surface can be easily formed. A backlit molded product that can easily apply a thick print surface with an ink film layer on the back side can be manufactured with high productivity, a low defect rate, and low cost. It has become possible to obtain a beautifully shaped article.
【0016】[0016]
【発明が解決しようとする課題】ところで、近年におい
ては、自動車の計器盤や空調用パネル或はオーディオ製
品の前面パネル等に、例えば黒色の不透明樹脂による成
形品を用いる場合が多く、合成樹脂シートの全面に不透
明樹脂を射出成形した場合は、バックライティング不可
能になるという不都合が生じる。In recent years, molded articles made of, for example, black opaque resin are often used for instrument panels of automobiles, air-conditioning panels, or front panels of audio products, for example. When an opaque resin is injection-molded over the entire surface of the substrate, there is a disadvantage that backlighting becomes impossible.
【0017】本発明は、このような事情に鑑みて成され
たもので、合成樹脂成形品が不透明又は半透明の合成樹
脂から成る場合であっても優れたバックライティングを
可能とする合成樹脂成形品を提供することを目的とす
る。The present invention has been made in view of such circumstances, and a synthetic resin molding which enables excellent backlighting even when the synthetic resin molded article is made of an opaque or translucent synthetic resin. The purpose is to provide goods.
【0018】[0018]
【課題を解決するための手段】上記の目的を達成するた
めに、本発明の請求項1の合成樹脂成形品は、厚み4μ
以上の単層で使用するインク膜層又は厚み8μ以上の二
層以上で使用するインキ膜層を有するように印刷した、
厚み0.1〜2.0mmの合成樹脂シートをその表面また
は裏面に溶着接合して成る異質な表面層または裏面層を
有するバックライティング可能な合成樹脂成形品におい
て、該合成樹脂成形品が不透明又は半透明であってバッ
クライティングを可能としたことを特徴とする。In order to achieve the above object, a synthetic resin molded product according to the first aspect of the present invention has a thickness of 4 μm.
Printed so as to have an ink film layer used as a single layer or two or more ink layers having a thickness of 8 μ or more,
A backlitable synthetic resin molded product having a heterogeneous surface layer or back surface layer obtained by welding and joining a synthetic resin sheet having a thickness of 0.1 to 2.0 mm to the front or back surface thereof, wherein the synthetic resin molded product is opaque or It is characterized by being translucent and capable of backlighting.
【0019】本発明の請求項2の合成樹脂成形品は、請
求項1において、前記不透明又は半透明の合成樹脂成形
品の所定箇所に透光窓を形成することによってバックラ
イティングを可能としたことを特徴とする。According to a second aspect of the present invention, there is provided the synthetic resin molded product according to the first aspect, wherein backlighting is enabled by forming a light-transmitting window at a predetermined position of the opaque or translucent synthetic resin molded product. It is characterized by.
【0020】本発明の請求項3の合成樹脂成形品は、請
求項1において、前記不透明又は半透明の合成樹脂成形
品の所定箇所に透光窓を形成し、該合成樹脂成形品の表
面又は裏面に溶着接合して成る合成樹脂シートによって
前記合成樹脂成形品の透光窓を遮蔽すると共に、該合成
樹脂シートに印刷した透光性の絵柄や文字に対してバッ
クライティングを可能としたことを特徴とする。According to a third aspect of the present invention, there is provided a synthetic resin molded product according to the first aspect, wherein a light-transmitting window is formed at a predetermined position of the opaque or translucent synthetic resin molded product, and the surface or the surface of the synthetic resin molded product is formed. The synthetic resin sheet welded to the back surface shields the light-transmitting window of the synthetic resin molded product, and enables backlighting for light-transmitting patterns and characters printed on the synthetic resin sheet. Features.
【0021】本発明の請求項4の合成樹脂成形品は、請
求項3において、前記合成樹脂シートによって前記合成
樹脂成形品の透光窓を不完全に遮蔽し(光線が一部透過
する)、該合成樹脂成形品に印刷した絵柄や文字は不透
光となるようにしてバックライティングを可能としたこ
とを特徴とする。According to a fourth aspect of the present invention, there is provided the synthetic resin molded article according to the third aspect, wherein the synthetic resin sheet imperfectly shields the light-transmitting window of the synthetic resin molded article (partially transmits light). It is characterized in that pictures and characters printed on the synthetic resin molded article are made opaque to enable backlighting.
【0022】本発明の請求項5の合成樹脂成形品の製造
方法は、厚み0.1〜2.0mmの合成樹脂シートに厚み
4μ以上の単層で使用するインク膜層又は厚み8μ以上
の二層以上で使用するインキ膜層を有するように印刷
し、これを金型内に装填することができる形状に加工し
た後、金型内表面に隣接するように装填し、金型を閉じ
てから溶融樹脂を該金型内に射出して異質な表面層又は
裏面層を有するバックライティング可能な合成樹脂成形
品を成形する方法において、該溶融樹脂に不透明又は半
透明のものが使用され、該樹脂の透明性に応じて前記合
成樹脂成形品の所定箇所に透光窓を設けたことを特徴と
する。The method for producing a synthetic resin molded article according to the fifth aspect of the present invention is a method for producing a synthetic resin sheet having a thickness of 0.1 to 2.0 mm, a single ink layer having a thickness of 4 μ or more or a two-layer ink film having a thickness of 8 μ or more. After printing so as to have an ink film layer to be used in layers or more, processing this into a shape that can be loaded into the mold, loading it adjacent to the inner surface of the mold, closing the mold, In a method of injecting a molten resin into the mold to form a backlitable synthetic resin molded article having a foreign surface layer or a backside layer, an opaque or translucent one is used as the molten resin, A light-transmitting window is provided at a predetermined position of the synthetic resin molded article according to the transparency of the molded article.
【0023】本発明の請求項6の合成樹脂成形品の製造
方法は、請求項5において、前記溶融樹脂が半透明の場
合、前記合成樹脂成形品の所定箇所に透光窓を設けない
ことを特徴とする。According to a sixth aspect of the present invention, in the method for manufacturing a synthetic resin molded product according to the fifth aspect, when the molten resin is translucent, a transparent window is not provided at a predetermined position of the synthetic resin molded product. Features.
【0024】本発明の請求項7の合成樹脂成形品の製造
方法は、請求項5及び6において、前記合成樹脂シート
に所定形状の絞り加工を施したことを特徴とする。According to a seventh aspect of the present invention, there is provided a method for manufacturing a synthetic resin molded product according to the fifth and sixth aspects, wherein the synthetic resin sheet is subjected to drawing processing of a predetermined shape.
【0025】[0025]
【発明の実施の形態】以下、本発明による合成樹脂成形
品及びその製造方法について説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A synthetic resin molded product according to the present invention and a method for producing the same will be described below.
【0026】本発明に使用する合成樹脂シートは、その
厚みが、0.1mm以上、2.0mm以下でなければならな
い。The synthetic resin sheet used in the present invention must have a thickness of 0.1 mm or more and 2.0 mm or less.
【0027】合成樹脂シートが0.1mmより薄い場合
は、金型内に装填する際に腰が弱く、金型の構造によっ
ては金型面からずれてしまうことがある。また、溶融樹
脂の温度によっては部分的に溶けてしまい、その形状を
保つことができない。If the synthetic resin sheet is thinner than 0.1 mm, the stiffness is low when the sheet is loaded into the mold, and the sheet may be shifted from the mold surface depending on the structure of the mold. Further, depending on the temperature of the molten resin, the molten resin is partially melted and its shape cannot be maintained.
【0028】合成樹脂シートが2.0mmより厚い場合
は、金型に装填する上での問題はないが、シートに印刷
後、金型に装填する形状に加工する際、例えば、打抜型
を使用する際の限界となる。これを丸鋸等による切断に
より加工していたのでは生産性の点で著しく劣り、工業
生産として耐えないものになる。When the synthetic resin sheet is thicker than 2.0 mm, there is no problem in loading into the mold. However, when processing the sheet into a shape to be loaded into the mold after printing on the sheet, for example, a punching die is used. It becomes the limit when doing. If this is processed by cutting with a circular saw or the like, the productivity is remarkably inferior and cannot be endured as industrial production.
【0029】また、金型面が曲面を有する場合、2.0
mmより厚いシートでは溶融樹脂を射出成形してもシート
が金型面に沿えず、所望の成形品が得られない。When the mold surface has a curved surface, 2.0
With a sheet thicker than mm, even if the molten resin is injection-molded, the sheet does not follow the mold surface, and a desired molded product cannot be obtained.
【0030】曲面を有する成形品の曲面部分に印刷を施
したものを得ることは本発明の大きな特徴であり、その
点からも2mm以上のシートを用いることは本発明の意図
するところから乖離したものとなる。It is a great feature of the present invention to obtain a molded product having a curved surface with a printed portion on the curved surface, and from that point, the use of a sheet of 2 mm or more deviates from the intended purpose of the present invention. It will be.
【0031】上記合成樹脂シートにスクリーン印刷方式
で印刷する場合、単層で使用するインキ膜層の厚みは4
μ以上であることを要する。この厚みは印刷後にインキ
を乾燥させた後の厚みである。When printing on the synthetic resin sheet by the screen printing method, the thickness of the ink film layer used as a single layer is 4
It must be at least μ. This thickness is the thickness after drying the ink after printing.
【0032】インキ膜の厚みを厚くするには、スクリー
ン印刷方式によるのが最良である。他の印刷方式では、
一度の印刷で1μ以下の薄いインキ膜しか得られない。
インキ膜の厚みが4μより薄いとピンホールが発生しバ
ックライティング不可能となるおそれがある。The best way to increase the thickness of the ink film is by screen printing. In other printing methods,
Only a thin ink film of 1 μ or less can be obtained by one printing.
If the thickness of the ink film is less than 4 μm, pinholes may be generated and backlighting may not be possible.
【0033】印刷部分が黒色で地を形成している場合
(絵柄や文字ではない場合)は、二層の重ね印刷を施
し、インキ膜層を8μ以上とする必要がある。絵柄や文
字に比べ地は面積が広い分だけピンホールが発現しやす
く、バックライティングによる漏光を生じやすいからで
ある。When the printed portion is black and forms a ground (when it is not a picture or a character), it is necessary to perform two-layered overprinting to make the ink film layer 8 μm or more. This is because, compared to pictures and characters, the ground has a larger area, so that pinholes are more likely to appear, and light leakage due to backlighting is more likely to occur.
【0034】上記の如く印刷した合成樹脂シートを成形
用金型に装填するために、金型の開口部形状に加工す
る。In order to load the synthetic resin sheet printed as described above into a molding die, it is processed into the shape of the opening of the die.
【0035】シートが薄い場合は鋏や裁断機(シャーリ
ング)で切断したり、厚い場合は丸鋸で切断したりして
もよいがこれでは生産性が上がらない。従って、打抜用
金型を作成しプレス機械に取りつけて打抜きによって所
定形状に切断加工する必要がある。成形品に孔が開いて
いるものはそれと同じ寸法、形状の孔が開くように打抜
金型を作成する。印刷シートの打抜き寸法は、成形品の
要求により異なるものである。If the sheet is thin, it may be cut with scissors or a cutting machine (shearing). If the sheet is thick, it may be cut with a circular saw, but this does not increase the productivity. Therefore, it is necessary to create a punching die, attach it to a press machine, and cut it into a predetermined shape by punching. If a molded product has a hole, a punching die is created so that a hole of the same size and shape is opened. The punching dimensions of the printed sheet vary depending on the requirements of the molded product.
【0036】成形品の側面まで印刷シートを貼り回す場
合は、所定寸法だけ成形金型開口部より大きく打抜き、
角型成形品ならば四隅は切り捨てる。その後、側面に回
す部分を折曲加工し一種の箱型の形状を付与する。When the printed sheet is to be wrapped around the side of the molded product, the printed sheet is punched by a predetermined dimension larger than the opening of the molding die.
If it is a square molded product, cut off the four corners. Then, the portion to be turned to the side is bent to give a kind of box shape.
【0037】成形品表面と印刷シート面とが同じ寸法の
場合は、印刷シートを金型加工部に合わせて打抜くとよ
い。When the surface of the molded article and the surface of the printed sheet have the same dimensions, the printed sheet is preferably punched out in accordance with the die processing portion.
【0038】上記二つの場合に印刷シートを金型に装填
するにはなんら問題はない。成形品に孔が形成されてい
る場合も同様である。この場合、印刷シートに形成する
孔は成形金型と同じ寸法とする。There is no problem in loading the printing sheet into the mold in the above two cases. The same applies to the case where a hole is formed in a molded product. In this case, the holes formed in the printing sheet have the same dimensions as the molding die.
【0039】成形品表面の周辺に成形樹脂面を露出させ
たい場合は、露出させたい寸法で印刷シートを小さく加
工する。この場合、成形金型に印刷シートを装填し、金
型表面中心と印刷シート中心とを合致させ保持するに
は、金型に微小な孔を設けここから真空発生器につない
で真空吸着させる。When it is desired to expose the molding resin surface around the surface of the molded article, the printed sheet is processed into a small size with the dimension to be exposed. In this case, in order to load the printing sheet into the molding die and hold the center of the die surface in alignment with the center of the printing sheet, a minute hole is formed in the die, and the die is connected to a vacuum generator for vacuum suction.
【0040】以上により金型内に印刷シートを装填し、
金型を閉じ、溶融樹脂を射出して成形する。この時、金
型内に溶融樹脂を導入する通路(ゲート)は印刷シート
に対して直交しないほうが好ましい。直交させると、溶
融樹脂の温度と圧力とで印刷シートが破れやすいからで
ある。As described above, the printing sheet is loaded into the mold,
The mold is closed, and the molten resin is injected and molded. At this time, it is preferable that the passage (gate) for introducing the molten resin into the mold is not orthogonal to the printing sheet. This is because, if they are perpendicular to each other, the printed sheet is easily broken by the temperature and pressure of the molten resin.
【0041】(実施例)以下に、上記のような本発明に
よる合成樹脂成形品として自動車の空調用パネルを具体
例として挙げ、その製造方法について説明する。(Example) An air conditioning panel of an automobile will be described as a specific example of the synthetic resin molded article according to the present invention as described above, and a method of manufacturing the panel will be described.
【0042】図1に示す自動車の空調用パネル1には、
風向き、温度調節等を行うためのスイッチ類(不図示)
を取り付けるために、パネル内に複数の孔2、2…が形
成されている。なお、夫々の孔2、2…にはその内底に
て前方へL形に突出する周縁2aが形成されている。The automobile air conditioning panel 1 shown in FIG.
Switches (not shown) for controlling wind direction, temperature, etc.
Are formed in the panel in order to attach them. Each of the holes 2, 2,... Has a peripheral edge 2a protruding forward in an L-shape at the inner bottom thereof.
【0043】また、夫々の孔2、2…の周囲には各スイ
ッチ類の操作案内をするための絵柄や文字3が印刷さ
れ、この絵柄や文字3に対してバックライティングを行
うことによって、夜間等の暗がりにおける視認性を向上
するようにしている。Also, around each of the holes 2, 2,..., A pattern or character 3 for guiding the operation of each switch is printed. The visibility in darkness such as is improved.
【0044】このような空調用パネル1は、図2に示す
ように合成樹脂成形品としてのパネル本体4と該パネル
本体4の表面に溶着接合される合成樹脂シート5とから
構成され、該合成樹脂シート5に上記の絵柄や文字3及
びこれらの絵柄や文字3以外の遮蔽部を印刷するように
している。As shown in FIG. 2, such an air conditioning panel 1 is composed of a panel main body 4 as a synthetic resin molded product and a synthetic resin sheet 5 welded to the surface of the panel main body 4. On the resin sheet 5, the above-mentioned patterns and characters 3 and the shielding portions other than these patterns and characters 3 are printed.
【0045】パネル本体4は、上記のように種々のスイ
ッチ類を取り付けるための複数の孔2、2…が形成され
たほか、図3に示すように、パネル本体4の裏面の周縁
に補強用枠7が突出形成され、補強用枠7の内側には複
数の補強用リブ7a、7a…が形成され、さらにはパネ
ル本体4を自動車の所定箇所に取り付けるための突出片
7b、7b…が形成されている。The panel body 4 has a plurality of holes 2, 2,... For mounting various switches as described above, and as shown in FIG. The frame 7 is formed so as to protrude, a plurality of reinforcing ribs 7a, 7a,... Are formed inside the reinforcing frame 7, and projecting pieces 7b, 7b,. Have been.
【0046】このようなパネル本体4は、図6(図1の
A−A矢視断面図)に示すように、各孔2の周囲にて僅
かな曲面を成して孔2側に下り勾配を有する形状とされ
ている。従って、図2に示すように、パネル本体4の表
面に溶着接合する合成樹脂シート5の面内にもパネル本
体4の夫々の孔2、2…に対応した位置及び形状に孔
2、2…を形成し、図6に示すように、パネル本体4の
曲面に応じて合成樹脂シート5を絞り加工によって形成
するようにしている。As shown in FIG. 6 (a sectional view taken along the line AA in FIG. 1), such a panel body 4 forms a slight curved surface around each hole 2 and descends toward the hole 2 side. It has a shape having Therefore, as shown in FIG. 2, the holes 2, 2,... Corresponding to the respective holes 2, 2,. The synthetic resin sheet 5 is formed by drawing according to the curved surface of the panel body 4 as shown in FIG.
【0047】このような合成樹脂シート5は、厚み0.
1mm〜2.0mmのものを用いてあり、図1に示すよう
に、パネル本体4の表面全体よりも小径に形成すること
によってパネル本体4の周部を露出するようにしてい
る。The synthetic resin sheet 5 has a thickness of 0.1 mm.
1 mm to 2.0 mm is used, and as shown in FIG. 1, the periphery of the panel main body 4 is exposed by forming the panel main body 4 to have a smaller diameter than the entire surface.
【0048】上記構成の空調用パネル1にバックライテ
ィングを行う場合、後方からの光を前方へ透過すべき部
位である絵柄や文字3以外の箇所には光を遮蔽するため
の塗装等を施す必要があるが、この実施例においては、
パネル本体4は黒色、即ち不透明の溶融樹脂によって形
成されているため、上記のような光を遮蔽するための塗
装を施す必要がなく、塗装設備が不要となり、コストの
低減を図ることが可能となる。When backlighting is performed on the air-conditioning panel 1 having the above-described structure, it is necessary to apply a coating or the like for shielding light from portions other than the picture and the character 3 which are portions through which light from behind is to be transmitted forward. However, in this example,
Since the panel main body 4 is formed of a black, that is, opaque molten resin, it is not necessary to apply the above-described coating for shielding light, so that a coating facility is not required and cost can be reduced. Become.
【0049】ところで、このようにパネル本体4を黒色
等の不透明の溶融樹脂によって形成した場合、バックラ
イティングのための透光を可能とした部分が必要とな
る。そこで、本実施例においては、図5に示すように、
パネル本体4の夫々の孔2、2…の周囲であって合成樹
脂シート5の絵柄や文字3の形成位置に対応する部位に
図4に示す弧状の透光窓8、8…を形成することによっ
てバックライティングを行うようにしている。When the panel main body 4 is made of an opaque molten resin such as black, a light-transmitting portion for backlighting is required. Therefore, in this embodiment, as shown in FIG.
Forming arc-shaped translucent windows 8, 8... Shown in FIG. 4 around the holes 2, 2,... Backlighting is performed by
【0050】このようにパネル本体4の溶融樹脂として
黒色を用いる場合、黒色を地色とする銘板の色と樹脂の
色を合わせる作業(塗装等)が不要となり、コストダウ
ンとなる。When black is used as the molten resin of the panel body 4 as described above, the work (painting or the like) of matching the color of the nameplate with black as the ground color and the color of the resin becomes unnecessary, and the cost is reduced.
【0051】さらに、パネル本体4を黒色等の不透明の
溶融樹脂によって形成した場合、バックライティングの
際の光漏れを設計的にカバーする必要がなくなる。Further, when the panel body 4 is formed of an opaque molten resin such as black, it is not necessary to designly cover light leakage during backlighting.
【0052】溶融樹脂として完全な不透明ではなく、半
透明の溶融樹脂を用いた場合には、上記のような透光窓
を設けなくてもよいが、バックライティングの光量を調
節するためにパネル本体4に印刷を施す必要がある。し
かして、本発明においては、溶融樹脂の透明性に応じて
その印刷を1回〜数回省略することが可能となる。When the translucent resin is not completely opaque but is translucent, it is not necessary to provide the light-transmitting window as described above. 4 needs to be printed. Thus, in the present invention, the printing can be omitted once or several times depending on the transparency of the molten resin.
【0053】また、上記の合成樹脂シート5において
は、絵柄や文字3を透光性の印刷によって形成すると共
に、これらの絵柄や文字3の明瞭な視認のために、その
周部の地をパネル本体4と同様の黒色で印刷してある。Further, in the above-mentioned synthetic resin sheet 5, the pattern and the character 3 are formed by translucent printing, and the periphery of the pattern and the character 3 is formed on a panel for clear recognition of the pattern and the character 3. It is printed in the same black as the main body 4.
【0054】この印刷は、バックライティングの際の漏
光をなくすために、合成樹脂シート5の裏面又は表面さ
らにはその両面にスクリーン印刷方式による二層の重ね
印刷を施し、インキ膜層を8μ以上とすることによって
ピンホールの発現を防止するようにしている。In this printing, in order to eliminate light leakage at the time of backlighting, the back or front surface of the synthetic resin sheet 5 and the both surfaces thereof are subjected to double-layer printing by a screen printing method, and the ink film layer is made 8 μm or more. This prevents the occurrence of pinholes.
【0055】上記の如く印刷した所定形状の合成樹脂シ
ート5を図7に示す成形用金型10に装填するために、
金型10を合成樹脂シート5の表面形状やパネル本体4
の全体形状に応じて作成しておき、打抜きによって所定
形状に切断加工し、且つ絞り加工した合成樹脂シート5
を金型10内の表面に隣接する。In order to load the synthetic resin sheet 5 having a predetermined shape printed as described above into the molding die 10 shown in FIG.
The surface of the synthetic resin sheet 5 and the panel body 4
The synthetic resin sheet 5 is prepared in accordance with the entire shape of the synthetic resin sheet 5, cut into a predetermined shape by punching, and drawn.
Is adjacent to the surface in the mold 10.
【0056】その後、図7に示すように、金型10を閉
じてから、該金型10に設けた射出成形用ノズル13か
ら黒色の溶融樹脂11をスプルー14へ導入し、ゲート
15を通過させて金型10内に溶融樹脂11を射出する
ことによって合成樹脂シート5の裏面にパネル本体4を
溶着接合する。Thereafter, as shown in FIG. 7, after closing the mold 10, the black molten resin 11 is introduced into the sprue 14 from the injection molding nozzle 13 provided in the mold 10 and passed through the gate 15. The panel body 4 is welded and joined to the back surface of the synthetic resin sheet 5 by injecting the molten resin 11 into the mold 10.
【0057】[0057]
【発明の効果】本発明は以上説明したように構成されて
いるため、以下に記載したような優れた効果を奏するも
のである。Since the present invention is configured as described above, it has the following excellent effects.
【0058】(1) 技術の平易性 本発明の技術は印刷した合成樹脂シートを成形用金型に
装填し、溶融樹脂を金型内に射出してバックライティン
グ可能な成型品を得るという極めて平易な技術である。
成形品の側面にもインク膜層の厚い印刷面を容易に保持
させるという特徴を持つものであって、成形に際して
は、シートの成形金型への装填が容易となる。(1) Technical simplicity The technology of the present invention is extremely simple in that a printed synthetic resin sheet is loaded into a molding die and a molten resin is injected into the die to obtain a molded product that can be backlit. Technology.
It has a feature that the thick printed surface of the ink film layer is easily held also on the side surface of the molded product. In molding, the sheet can be easily loaded into the molding die.
【0059】(2) バックライティング可能な曲面印刷品 単曲面又は複曲面を有する成形品の表面又は裏面にイン
キ膜層の厚い印刷面を容易に付与でき、バックライティ
ングを可能ならしめる。(2) Curved Surface Printable Product with Backlighting A printed surface with a thick ink film layer can be easily provided on the front or back surface of a molded product having a single curved surface or a multicurved surface, thereby enabling backlighting.
【0060】(3) 高生産性 成形品に直接印刷する場合に比較して数倍の生産性を有
する。(3) High productivity The productivity is several times higher than when printing directly on a molded article.
【0061】(4) 低不良率 成形品に直接印刷する場合に比較してはるかに低い不良
率である。(4) Low Defective Rate The defective rate is much lower than when printing directly on a molded product.
【0062】(5) 低コスト 成形品の一個ごとに印刷する場合に比較して同時に多数
個分の印刷が可能であり、それだけ低いコストとなる。(5) Low Cost As compared with the case of printing one molded product at a time, printing of a large number of products can be performed at the same time, resulting in lower cost.
【0063】(6) 外観の美麗性 成形品へ直接印刷したり、印刷したフィルムからインキ
膜を成形品に転写したりする方法に見られがちなウエル
ドラインやゲートマークが全く見られず優れた美麗な外
観を有する。(6) Appearance of appearance Excellent print lines and gate marks, which are often seen in the method of printing directly on a molded article or transferring an ink film from a printed film to a molded article, are excellent. Has a beautiful appearance.
【0064】さらに、本発明においては、不透明又は半
透明の合成樹脂成形品の所定箇所に透光窓を形成し、さ
らにはこの成形品の表面又は裏面に溶着接合して成る合
成樹脂シートによって成形品の透光窓を遮蔽すると共
に、合成樹脂シートに印刷した透光性の絵柄や文字に対
してバックライティングを可能とした構成としてあるた
め、成形品が不透明又は半透明であってもバックライテ
ィングを可能とした構成を得ることが可能となる。Further, in the present invention, a light-transmitting window is formed at a predetermined position of an opaque or translucent synthetic resin molded article, and furthermore, a synthetic resin sheet formed by welding and joining to the front or back surface of this molded article is used. It is designed to block the light-transmitting window of the product and to enable backlighting of translucent patterns and characters printed on the synthetic resin sheet, so backlighting is possible even if the molded product is opaque or translucent. Can be obtained.
【0065】なお、合成樹脂シートによって成形品の透
光窓を不完全に遮蔽する(即ち、光透過率が100%未
満である)場合、そこには不透明の絵柄や文字を設ける
ことによってバックライティング可能とし、絵柄や文字
を浮き上がらせる構成とすることも可能である。When the light-transmitting window of the molded article is incompletely shielded by the synthetic resin sheet (that is, the light transmittance is less than 100%), an opaque pattern or character is provided there to provide backlighting. It is also possible to adopt a configuration in which pictures and characters are raised.
【0066】このような構成において、成型品を不透明
の溶融樹脂によって形成した場合、バックライティング
の際の光を遮蔽するための塗装を施す必要がなく、塗装
設備が不要となり、コストの低減を図ることが可能とな
る。In such a configuration, when the molded product is formed of an opaque molten resin, it is not necessary to apply a coating for shielding light at the time of backlighting, so that a coating facility is not required and cost is reduced. It becomes possible.
【0067】また、成形品を成形する溶融樹脂として黒
色を用いた場合、黒色を地色とする銘板の色と樹脂の色
を合わせる作業(塗装等)が不要となり、コストダウン
となる。Further, when black is used as the molten resin for molding the molded article, the work (painting or the like) of matching the color of the nameplate with black as the ground color and the color of the resin becomes unnecessary, and the cost is reduced.
【0068】さらに、成形品を黒色等の不透明の溶融樹
脂によって形成した場合、バックライティングの際の光
漏れを設計的にカバーする必要がなくなる。Further, when the molded product is formed of an opaque molten resin such as black, it is not necessary to designly cover light leakage at the time of backlighting.
【0069】さらにまた、成形品の溶融樹脂として不透
明樹脂を用いた場合、再生材を使用することができコス
トダウンとなる。Further, when an opaque resin is used as the molten resin of the molded article, a recycled material can be used, and the cost is reduced.
【図1】本発明による合成樹脂成形品の具体例である自
動車の空調用パネルの斜視図である。FIG. 1 is a perspective view of a vehicle air-conditioning panel which is a specific example of a synthetic resin molded product according to the present invention.
【図2】本発明による自動車の空調用パネルを本体パネ
ルと合成樹脂シートとに分離した斜視図である。FIG. 2 is a perspective view of the vehicle air conditioning panel according to the present invention, which is separated into a main body panel and a synthetic resin sheet.
【図3】本発明による自動車の空調用パネルの本体パネ
ル(合成樹脂シートを除く)を裏面から見た斜視図であ
る。FIG. 3 is a perspective view of a main body panel (excluding a synthetic resin sheet) of an air-conditioning panel of an automobile according to the present invention as viewed from a back surface.
【図4】本発明による自動車の空調用パネルの本体パネ
ル(合成樹脂シートを除く)の背面図である。FIG. 4 is a rear view of a main body panel (excluding a synthetic resin sheet) of a vehicle air conditioning panel according to the present invention.
【図5】本発明による自動車の空調用パネルの本体パネ
ルに合成樹脂シートを接合した状態を示す背面図であ
る。FIG. 5 is a rear view showing a state in which a synthetic resin sheet is joined to a main body panel of an automotive air conditioning panel according to the present invention.
【図6】図1のA−A線矢視断面図である。FIG. 6 is a sectional view taken along line AA of FIG. 1;
【図7】本発明による合成樹脂成形品を成形するための
金型を示すものであり、図6の2点鎖線Bに相当する部
位の成形状況を示す部分断面図である。7 is a partial cross-sectional view showing a mold for molding a synthetic resin molded product according to the present invention and showing a molding state of a portion corresponding to a two-dot chain line B in FIG.
1…空調用パネル(合成樹脂成形品) 2…孔 3…絵柄や文字 4…パネル本体 5…合成樹脂シート 7…補強用枠 8…透光窓 10…金型 11…溶融樹脂 DESCRIPTION OF SYMBOLS 1 ... Air-conditioning panel (synthetic resin molded product) 2 ... Hole 3 ... Picture and character 4 ... Panel body 5 ... Synthetic resin sheet 7 ... Reinforcement frame 8 ... Translucent window 10 ... Mold 11 ... Molten resin
Claims (7)
又は厚み8μ以上の二層以上で使用するインキ膜層を有
するように印刷した、厚み0.1〜2.0mmの合成樹脂
シートをその表面または裏面に溶着接合して成る異質な
表面層または裏面層を有するバックライティング可能な
合成樹脂成形品において、該合成樹脂成形品が不透明又
は半透明であってバックライティングを可能としたこと
を特徴とする合成樹脂成形品。1. A synthetic resin sheet having a thickness of 0.1 to 2.0 mm printed so as to have an ink film layer used as a single layer having a thickness of 4 μ or more or an ink film layer used as two or more layers having a thickness of 8 μ or more. A synthetic resin molded article having a heterogeneous surface layer or backside layer formed by welding and joining to the front or back surface thereof, wherein the synthetic resin molded article is opaque or translucent and enables backlighting. A synthetic resin molded product characterized by the following.
所定箇所に透光窓を形成することによってバックライテ
ィングを可能としたことを特徴とする請求項1記載の合
成樹脂成形品。2. A synthetic resin molded product according to claim 1, wherein a backlight is made possible by forming a light-transmitting window at a predetermined position of said opaque or translucent synthetic resin molded product.
所定箇所に透光窓を形成し、該合成樹脂成形品の表面又
は裏面に溶着接合して成る合成樹脂シートによって前記
合成樹脂成形品の透光窓を遮蔽すると共に、該合成樹脂
シートに印刷した透光性の絵柄や文字に対してバックラ
イティングを可能としたことを特徴とする請求項1記載
の合成樹脂成形品。3. A synthetic resin molded article formed by forming a light-transmitting window at a predetermined position on the opaque or translucent synthetic resin molded article and welding and joining the front or back surface of the synthetic resin molded article. 2. The synthetic resin molded product according to claim 1, wherein the light-transmitting window is shielded, and backlighting is enabled for a light-transmitting pattern or character printed on the synthetic resin sheet.
よって前記合成樹脂成形品の透光窓を不完全に遮蔽し
(光線が一部透過する)、該合成樹脂成形品に印刷した
絵柄や文字は不透光となるようにしてバックライティン
グを可能としたことを特徴とする請求項1記載の合成樹
脂成形品。4. A picture or a character printed on said synthetic resin molded product according to claim 3, wherein said synthetic resin sheet imperfectly shields a light transmitting window of said synthetic resin molded product (partially transmits light rays). 2. The synthetic resin molded product according to claim 1, wherein the backlight is made opaque to enable backlighting.
厚み4μ以上の単層で使用するインク膜層又は厚み8μ
以上の二層以上で使用するインキ膜層を有するように印
刷し、これを金型内に装填することができる形状に加工
した後、金型内表面に隣接するように装填し、金型を閉
じてから溶融樹脂を該金型内に射出して異質な表面層又
は裏面層を有するバックライティング可能な合成樹脂成
形品を成形する方法において、該溶融樹脂に不透明又は
半透明のものが使用され、該樹脂の透明性に応じて前記
合成樹脂成形品の所定箇所に透光窓を設けたことを特徴
とする合成樹脂成形品の製造方法。5. An ink film layer having a thickness of 4 .mu.m or more and a thickness of 8 .mu.m used for a synthetic resin sheet having a thickness of 0.1 to 2.0 mm.
After printing so as to have an ink film layer to be used in the above two or more layers, processing this into a shape that can be loaded in a mold, and loading it adjacent to the inner surface of the mold, In a method of molding a synthetic resin molded product having a foreign surface layer or a back surface layer and capable of being backlit by injecting a molten resin into the mold after closing, an opaque or translucent one is used for the molten resin. A method for manufacturing a synthetic resin molded product, wherein a transparent window is provided at a predetermined position of the synthetic resin molded product according to the transparency of the resin.
の場合、前記合成樹脂成形品の所定箇所に透光窓を設け
ないことを特徴とする合成樹脂成形品の製造方法。6. A method for manufacturing a synthetic resin molded product according to claim 5, wherein when the molten resin is translucent, a light transmitting window is not provided at a predetermined position of the synthetic resin molded product.
を施したことを特徴とする請求項5及び6記載の合成樹
脂成形品の製造方法。7. The method according to claim 5, wherein said synthetic resin sheet is subjected to drawing in a predetermined shape.
Priority Applications (3)
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JP2000379319A JP3740558B2 (en) | 2000-12-13 | 2000-12-13 | Synthetic resin molded product and method for producing the same |
CN 01134698 CN1217776C (en) | 2000-12-13 | 2001-11-13 | Synthetic resin molded article and its making process |
HK02107278.6A HK1045825B (en) | 2000-12-13 | 2002-10-03 | Molded article of synthetic resin and process for producing the same |
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JP2000379319A JP3740558B2 (en) | 2000-12-13 | 2000-12-13 | Synthetic resin molded product and method for producing the same |
Publications (2)
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JP2002178362A true JP2002178362A (en) | 2002-06-26 |
JP3740558B2 JP3740558B2 (en) | 2006-02-01 |
Family
ID=18847714
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Application Number | Title | Priority Date | Filing Date |
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JP2000379319A Expired - Lifetime JP3740558B2 (en) | 2000-12-13 | 2000-12-13 | Synthetic resin molded product and method for producing the same |
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JP (1) | JP3740558B2 (en) |
CN (1) | CN1217776C (en) |
HK (1) | HK1045825B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007125832A (en) * | 2005-11-07 | 2007-05-24 | Sakaiya:Kk | Method for manufacturing ring-integrated display board |
CN100360300C (en) * | 2003-08-29 | 2008-01-09 | 株式会社堺谷 | Shaping processing product of synthetic resin board and its processing method |
WO2008055978A1 (en) * | 2006-11-10 | 2008-05-15 | Leopold Kostal Gmbh & Co. Kg | Operating unit for a motor vehicle with “black-panel” effect |
JP2010125817A (en) * | 2008-12-01 | 2010-06-10 | Sakaiya:Kk | Synthetic resin molding including varying design surface |
JP2020049683A (en) * | 2018-09-25 | 2020-04-02 | ダイハツ工業株式会社 | Resin molded member |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3988082B2 (en) * | 2004-02-12 | 2007-10-10 | 株式会社サカイヤ | Synthetic resin molded product and method for producing the same |
CN103448329B (en) * | 2012-05-31 | 2015-12-16 | 珠海格力电器股份有限公司 | Multilayer structure decoration and air conditioner indoor unit |
CN102853334B (en) * | 2012-08-01 | 2014-12-03 | 杭州广安汽车电器有限公司 | Backlight indicator used by controller and provided with correction film and manufacture method thereof |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS63256984A (en) * | 1987-04-15 | 1988-10-24 | サカエ理研工業株式会社 | Light transmission display body and molding thereof |
JPH01299016A (en) * | 1988-05-26 | 1989-12-01 | Sakaiya Meihan Kk | Synthetic resin molded product and its manufacture |
JPH06134934A (en) * | 1992-03-25 | 1994-05-17 | Sakaiya Meiban Kk | Synthetic resin molded product and production thereof |
JPH0997026A (en) * | 1995-09-29 | 1997-04-08 | Nissha Printing Co Ltd | Display panel and its production |
-
2000
- 2000-12-13 JP JP2000379319A patent/JP3740558B2/en not_active Expired - Lifetime
-
2001
- 2001-11-13 CN CN 01134698 patent/CN1217776C/en not_active Expired - Lifetime
-
2002
- 2002-10-03 HK HK02107278.6A patent/HK1045825B/en not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63256984A (en) * | 1987-04-15 | 1988-10-24 | サカエ理研工業株式会社 | Light transmission display body and molding thereof |
JPH01299016A (en) * | 1988-05-26 | 1989-12-01 | Sakaiya Meihan Kk | Synthetic resin molded product and its manufacture |
JPH06134934A (en) * | 1992-03-25 | 1994-05-17 | Sakaiya Meiban Kk | Synthetic resin molded product and production thereof |
JPH0997026A (en) * | 1995-09-29 | 1997-04-08 | Nissha Printing Co Ltd | Display panel and its production |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100360300C (en) * | 2003-08-29 | 2008-01-09 | 株式会社堺谷 | Shaping processing product of synthetic resin board and its processing method |
JP2007125832A (en) * | 2005-11-07 | 2007-05-24 | Sakaiya:Kk | Method for manufacturing ring-integrated display board |
JP4742341B2 (en) * | 2005-11-07 | 2011-08-10 | 株式会社サカイヤ | Manufacturing method of ring-integrated display panel |
WO2008055978A1 (en) * | 2006-11-10 | 2008-05-15 | Leopold Kostal Gmbh & Co. Kg | Operating unit for a motor vehicle with “black-panel” effect |
JP2010125817A (en) * | 2008-12-01 | 2010-06-10 | Sakaiya:Kk | Synthetic resin molding including varying design surface |
JP2020049683A (en) * | 2018-09-25 | 2020-04-02 | ダイハツ工業株式会社 | Resin molded member |
JP2021191642A (en) * | 2018-09-25 | 2021-12-16 | ダイハツ工業株式会社 | Manufacturing method for resin molded parts |
JP7102596B2 (en) | 2018-09-25 | 2022-07-19 | ダイハツ工業株式会社 | Manufacturing method of resin molded member |
Also Published As
Publication number | Publication date |
---|---|
JP3740558B2 (en) | 2006-02-01 |
CN1357441A (en) | 2002-07-10 |
HK1045825A1 (en) | 2002-12-13 |
CN1217776C (en) | 2005-09-07 |
HK1045825B (en) | 2006-01-06 |
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