JPH06170884A - Manufacture of window member made of resin - Google Patents
Manufacture of window member made of resinInfo
- Publication number
- JPH06170884A JPH06170884A JP32814292A JP32814292A JPH06170884A JP H06170884 A JPH06170884 A JP H06170884A JP 32814292 A JP32814292 A JP 32814292A JP 32814292 A JP32814292 A JP 32814292A JP H06170884 A JPH06170884 A JP H06170884A
- Authority
- JP
- Japan
- Prior art keywords
- window member
- base portion
- molding
- resin
- conductive thin
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
- B29C45/0055—Shaping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14549—Coating rod-like, wire-like or belt-like articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3052—Windscreens
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Details Of Aerials (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、樹脂材料によって形成
され、例えば防曇用の熱線あるいはラジオアンテナとし
ての導電性細線状パターンを備えた樹脂製ウィンド部材
の製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a resin window member which is formed of a resin material and has a conductive thin wire pattern as a heat wire for anti-fogging or a radio antenna.
【０００２】[0002]
【従来の技術】従来、自動車におけるリアウィンドやフ
ロントウィンド等の開口部を覆うウィンド部材の材料と
してはガラスが一般的であるが、ガラスは比重が大き
く、自動車の軽量化および低重心化を阻害するものとな
っている。そこで、近年では、特開昭６２−２５１２２
７号公報にも開示されているように、ガラスに代えてポ
リカーボネート、あるいはアクリル等の樹脂がウィンド
部材の材料として使用されつつある。これらの樹脂の比
重は、ガラスの比重が2.５であるのに対して、ポリカー
ボネートが1.２〜1.４、アクリルが1.２と小さくなって
いる。このような樹脂材料によってウィンド部材を形成
する場合、樹脂特有の形状自由度を活用し、かつ高い生
産性を得ることができる点から射出成形法が適してい
る。2. Description of the Related Art Conventionally, glass has been generally used as a material for a window member that covers an opening such as a rear window and a front window in an automobile, but the glass has a large specific gravity, which hinders reduction in the weight and center of gravity of the automobile. It is supposed to do. Therefore, in recent years, JP-A-62-25122
As disclosed in Japanese Patent Publication No. 7, a resin such as polycarbonate or acrylic is being used as a material for the window member instead of glass. The specific gravity of these resins is as low as 1.2 to 1.4 for polycarbonate and 1.2 for acrylic, whereas the specific gravity of glass is 2.5. When the window member is formed of such a resin material, the injection molding method is suitable because the shape flexibility unique to the resin can be utilized and high productivity can be obtained.
【０００３】ところで、近年、ガラスからなる例えばリ
アウィンド用のウインド部材には、防曇、除曇、除霜の
ための熱線あるいはカーラジオ用のアンテナ等の導電性
細線状パターンを備えたものが考え出されている。この
ようなウィンド部材の製造方法は、先ず、ウィンド部材
の基体部となる平板状のガラス板に、導電性細線状パタ
ーンを印刷し、その後、ガラス板を所定の曲線形状に熱
成形するものとなっている。また、上記のアンテナとし
ての導電性細線状パターンを備えたウィンド部材の他の
製造方法としては、ウィンド部材の基体部となる２枚の
ガラス板を所定形状に同時成形した後、これら２枚のガ
ラス板を開いてその間に樹脂性中間膜とコイル状アンテ
ナとを配し、その後、両ガラス板を閉じ合わせて高温槽
で圧着するものが知られている。By the way, in recent years, a window member made of glass, for example, for a rear window, is provided with a conductive thin wire pattern such as a heat wire for defrosting, defrosting or defrosting, or an antenna for a car radio. Has been figured out. The method for manufacturing such a window member is such that first, a conductive thin linear pattern is printed on a flat glass plate that is a base portion of the window member, and then the glass plate is thermoformed into a predetermined curved shape. Has become. Further, as another method of manufacturing the window member having the conductive thin wire pattern as the above antenna, two glass plates to be the base portion of the window member are simultaneously formed into a predetermined shape, and then these two glass plates are formed. It is known that a glass plate is opened, a resinous intermediate film and a coil-shaped antenna are arranged between them, and then both glass plates are closed and pressure-bonded in a high temperature tank.
【０００４】しかしながら、樹脂を材料とする射出成形
によってウィンド部材を成形する場合には、通常、射出
成形によって直接３次元形状のウィンド部材の基体部を
形成するため、平板状のウィンド部材の基体部に導電性
細線状パターンを直接印刷する技術を適用することがで
きない。そこで、ウィンド部材に熱線等の導電性細線状
パターンを設ける方法として、導電性を有するペースト
を所定形状に成形されたウィンド部材の片側表面にプリ
ントするものが考えられている。However, when the window member is formed by injection molding using resin as a material, the base portion of the window member having a three-dimensional shape is directly formed by injection molding, so that the base portion of the flat plate-shaped window member is formed. It is not possible to apply the technique of directly printing the conductive thin line pattern to the. Therefore, as a method of providing a conductive thin wire pattern such as a heating wire on the window member, a method of printing a conductive paste on one surface of the window member formed into a predetermined shape has been considered.
【０００５】[0005]
【発明が解決しようとする課題】ところが、上記の方法
では、導電性細線状パターンを熱線とした場合、この熱
線が、ウィンド部材の片側表面にのみ設けられるため、
ウィンド部材の熱線が設けられた側の面と他の面とで
は、熱伝導時間が異なり、例えば上記熱線が車室内面側
に設けられていれば、車室外面側における熱伝導時間よ
り車室内面側における熱伝導時間の方が短くなるため、
ウィンドにおける車室内面側に生じる曇の除去は効率良
く行うことができるが、車室外面側に付着する霜等の解
氷は効率良く行うことができない。逆に、上記熱線が車
室外面側に設けられていれば、車室外面側に付着する霜
等の解氷は効率良く行うことができるが、車室内面側に
生じる曇等の除去は効率良く行うことができない。特
に、ウィンド部材の基体部が樹脂によって形成されてい
る場合、熱伝導率がガラスの場合よりも低く、熱線が設
けられていない側への熱の伝達効率が悪くなるので、除
曇あるいは除霜効果が著しく低下するという問題が生じ
ている。However, in the above method, when the conductive thin wire pattern is a heating wire, this heating wire is provided only on one surface of the window member.
The heat conduction time differs between the surface of the window member on which the heat ray is provided and the other surface. For example, if the heat ray is provided on the inner surface of the passenger compartment, the heat conduction time on the outer surface of the passenger compartment is shorter than that on the outer surface of the passenger compartment. Since the heat conduction time on the surface side is shorter,
Although it is possible to efficiently remove the fog generated on the vehicle cabin inner surface side in the window, it is not possible to efficiently remove the frost or the like adhering to the vehicle cabin outer surface side. On the other hand, if the heat wire is provided on the outer surface of the passenger compartment, the frost and the like adhering to the outer surface of the passenger compartment can be efficiently defrosted, but the removal of fogging etc. on the inner surface of the passenger compartment is efficient. I can't do well. In particular, when the base portion of the window member is made of resin, the thermal conductivity is lower than that of glass, and the efficiency of heat transfer to the side where the heating wire is not provided is poor, so defrosting or defrosting is performed. There is a problem that the effect is significantly reduced.
【０００６】そこで、本発明は、上記問題点に鑑みなさ
れたものであって、その目的は、車両のリアウィンド等
において車室外面側と車室内面側とに均等に且つ効率良
く熱が伝わるように熱線等の導電性細線状部材を備える
樹脂製ウィンド部材の製造方法を提供することにある。Therefore, the present invention has been made in view of the above problems, and an object thereof is that heat is evenly and efficiently transferred to the outer surface of the vehicle interior and the inner surface of the vehicle interior in the rear window of the vehicle. Thus, it is an object of the present invention to provide a method for manufacturing a resin window member including a conductive thin wire member such as a heating wire.
【０００７】[0007]
【課題を解決するための手段】本発明の樹脂製ウィンド
部材の製造方法は、導電性細線状部材を、平板状の射出
成形金型の成形キャビティの板厚方向断面略中央部に配
した後、この成形キャビティにウィンド部材基体部形成
用の樹脂を射出して射出成形を行い、ウィンド部材基体
部と導電性細線状部材とを一体成形した後、所定形状に
熱曲げ成形することを特徴とするものである。According to the method of manufacturing a resin window member of the present invention, a conductive thin wire member is arranged at a substantially central portion in a plate thickness direction cross section of a molding cavity of a flat plate injection molding die. A resin for forming a window member base portion is injected into the molding cavity for injection molding, the window member base portion and the conductive thin wire member are integrally molded, and then heat-bent molded into a predetermined shape. To do.
【０００８】[0008]
【作用】上記の構成によれば、導電性細線部材を、平板
状の射出成形金型の成形キャビティの板厚方向断面略中
央部に配し、この成形キャビティにウィンド部材基体部
形成用の樹脂を射出して射出成形を行い、ウィンド部材
基体部と導電性細線状部材とを一体成形した後、所定形
状に熱曲げ成形することによって、ウィンド部材基体部
を従来のように直接３次元形状に成形するのではなく、
一旦平板状の一次成形品を形成した後、所定形状に熱曲
げ成形しているので、射出成形の場合における射出圧に
影響されにくくなり、導電性細線部材が射出成形中に金
型内でずれることなく所定の位置で保持して成形するこ
とができ、容易にウィンド部材基体部と導電性細線状部
材とが一体成形されたウィンド部材を製造することがで
きる。しかも、導電性細線状部材を射出成形金型の成形
キャビティの板厚方向断面略中央部に配することで、容
易にウィンド部材基体部の板厚方向断面略中央部に導電
性細線状部材を設けることができるうえ、導電性細線状
部材とウィンド部材基体部が一体成形できることから、
ガラスウィンド部材等にみられるようにウィンド間に導
電性細線状部材を挟んで高温で圧接する工程をなくすこ
とができ、製造時間、製造工程の短縮、および製造費の
低減が可能となる。また、このように製造されたウィン
ド部材では、導電性細線状部材を熱線とした場合、この
熱線が上述したようにウィンド部材基体部の板厚方向断
面略中央部に設けられているので、熱の伝達速度を表面
と裏面でほぼ等しくすることができ、例えばこのような
ウィンド部材を車両に用いた場合、車室外面側の除霜効
率並びに車室内面側の除曇効率を向上させ、なおかつ、
熱線等の導電性細線状部材を保護し、損傷を無くすこと
ができる。According to the above-mentioned structure, the conductive thin wire member is arranged in the substantially central portion of the molding cavity of the flat plate injection molding die in the plate thickness direction, and the molding cavity is formed with the resin for forming the window member base portion. After injection molding, the window member base portion and the conductive thin linear member are integrally molded, and then heat-bent formed into a predetermined shape to directly change the window member base portion into a three-dimensional shape as in the conventional case. Instead of molding
Once the flat primary molded product is formed, it is heat-bently molded into a predetermined shape, so it is less affected by the injection pressure in the case of injection molding, and the conductive thin wire member shifts in the mold during injection molding. It is possible to hold and mold at a predetermined position without the need, and it is possible to easily manufacture a window member in which the window member base portion and the conductive thin linear member are integrally molded. Moreover, by arranging the conductive thin linear member in the substantially central portion in the plate thickness direction cross section of the molding cavity of the injection molding die, the conductive thin linear member can be easily provided in the substantially central portion in the plate thickness direction cross section of the window member base portion. In addition to being provided, the conductive thin wire member and the window member base portion can be integrally molded,
It is possible to eliminate the step of sandwiching the conductive thin wire member between the windows and press-contacting it at a high temperature as seen in a glass window member or the like, and it is possible to reduce the manufacturing time, the manufacturing process, and the manufacturing cost. Further, in the window member manufactured in this manner, when the conductive thin wire member is a heating wire, the heating wire is provided at the substantially central portion in the plate thickness direction cross section of the window member base portion as described above. Can be made substantially equal to each other on the front surface and the back surface. For example, when such a window member is used in a vehicle, the defrosting efficiency on the outer surface side of the vehicle interior and the defrosting efficiency on the inner surface side of the vehicle interior are improved, and ,
It is possible to protect a conductive thin wire member such as a heat wire and eliminate damage.
【０００９】[0009]
【実施例】本発明の一実施例について図１ないし図７に
基づいて説明すれば、以下の通りである。DESCRIPTION OF THE PREFERRED EMBODIMENTS The following will describe one embodiment of the present invention with reference to FIGS.
【００１０】図６に示すように、本実施例に係る樹脂製
ウィンド部材（以下、単にウィンド部材と称する）１
は、自動車のリアウィンドの開口部を覆うように設けら
れている。このウィンド部材１は、図４及び図５に示す
ように、ウィンド部材基体部２と、このウィンド部材基
体部２と一体成形された導電性細線状部材を所定のパタ
ーンとした防曇等用の熱線３と、上記ウィンド部材基体
２の表面に形成されたハードコート層４・４と、縁取り
部５とからなっている。As shown in FIG. 6, a resin window member (hereinafter simply referred to as a window member) 1 according to this embodiment.
Is provided so as to cover the opening of the rear window of the automobile. As shown in FIGS. 4 and 5, the window member 1 has a window member base portion 2 and a conductive thin wire member integrally formed with the window member base portion 2, which has a predetermined pattern and is used for anti-fogging and the like. The heating wire 3 includes the hard coat layers 4 and 4 formed on the surface of the window member base 2 and the edging portion 5.
【００１１】このうち、上記のウィンド部材基体部２
は、ポリカーボネート、アクリル樹脂、ポリアクリルイ
ミドあるいはポリスチレン等の樹脂からなり、熱線３
は、導電性の例えばＳｎＯ2 、ＩｎＯ3 、ＺｎＯ等の細
線からなっている。Of these, the above-mentioned window member base portion 2
Is made of a resin such as polycarbonate, acrylic resin, polyacrylic imide, or polystyrene.
Is made of a conductive thin wire such as SnO 2 , InO 3 or ZnO.
【００１２】上記ウィンド部材基体部２と熱線３とは、
ウィンド部材基体部２が平板状の一次成形品として形成
されるときに一体成形されるようになっている。このと
き、熱線３は、ウィンド部材基体部２の板厚方向断面略
中央部に配するように成形されるようになっている。
尚、上記熱線３は、上記ウィンド部材１における防曇、
除曇および除霜のためのものであり、図６に示すよう
に、複数本がほぼ平行となってウィンド部材１の車幅方
向に延びるように設けられている。The window member base portion 2 and the heating wire 3 are
When the window member base portion 2 is formed as a flat plate-shaped primary molded product, it is integrally molded. At this time, the heating wire 3 is formed so as to be arranged at the substantially central portion in the section of the window member base portion 2 in the plate thickness direction.
In addition, the heat wire 3 is an anti-fog in the window member 1,
This is for defrosting and defrosting, and as shown in FIG. 6, a plurality of them are provided so as to be substantially parallel to each other and extend in the vehicle width direction of the window member 1.
【００１３】また、上記ハードコート層４は、ウィンド
部材基体部２の両面に形成されることで、ウィンド部材
１における耐スクラッチ性、耐摩耗性を向上させるよう
になっている。また、このハードコート層４は、ウィン
ド部材基体部２との高い接着性が確保でき、且つウィン
ド部材基体部２と同一の屈折率となるようなシリコン系
の樹脂からなるものが使用されているが、上記の接着性
および屈折率の条件を満たすものであれば、他種のもの
であっても使用可能である。The hard coat layer 4 is formed on both sides of the window member base portion 2 to improve the scratch resistance and wear resistance of the window member 1. The hard coat layer 4 is made of a silicon-based resin that can secure high adhesion to the window member base portion 2 and has the same refractive index as that of the window member base portion 2. However, other kinds of materials can be used as long as they satisfy the above-mentioned adhesiveness and refractive index conditions.
【００１４】尚、上記ハードコート層４は、上記のウィ
ンド部材基体部２と熱線３とが一体成形された後、シリ
コン系溶液の満たされた硬化処理槽にディッピングする
ことによってウィンド部材基体部２の両面に形成され
る。但し、ハードコート層４の形成方法は、上記のディ
ッピングに限定されることなく、例えばフローコーティ
ング等によって形成されても良く、特に限定するもので
はない。The hard coat layer 4 is formed by integrally molding the window member base portion 2 and the heating wire 3 and then dipping the hard member layer 2 into a hardening bath filled with a silicon-based solution. Is formed on both sides of. However, the method of forming the hard coat layer 4 is not limited to the above dipping, and may be formed by, for example, flow coating, and is not particularly limited.
【００１５】また、上記縁取り部５は、黒色の例えばセ
ラミック塗料等からなり、ウィンド部材１の全周縁部に
わたって形成され、図７に示すように、車体パネル６に
対するウィンド部材１の取り付け部の目隠しとなってい
る。即ち、ウィンド部材１は、車体パネル６における開
口部周辺６ａの外面側から接着剤層７によって貼着され
ており、上記縁取り部５はこの接着剤層７による貼着部
を隠すものとなっている。また、ウィンド部材１の端縁
部と車体パネル６との間には、車体パネル６にウィンド
部材１を所定位置で保持できるように全周にわたってゴ
ム等からなるシール８が設けられている。Further, the edging portion 5 is made of, for example, black ceramic paint and is formed over the entire peripheral portion of the window member 1. As shown in FIG. 7, the blind portion of the attachment portion of the window member 1 to the vehicle body panel 6 is blinded. Has become. That is, the window member 1 is adhered by the adhesive layer 7 from the outer surface side of the periphery 6a of the opening in the vehicle body panel 6, and the edging portion 5 hides the adhered portion by the adhesive layer 7. There is. A seal 8 made of rubber or the like is provided over the entire circumference between the edge of the window member 1 and the vehicle body panel 6 so that the vehicle body panel 6 can hold the window member 1 at a predetermined position.
【００１６】上記の構造のウィンド部材１の製造方法に
ついて図１ないし図３を参照しながら、以下に説明す
る。A method of manufacturing the window member 1 having the above structure will be described below with reference to FIGS. 1 to 3.
【００１７】先ず、図１（ａ）に示すように、射出成形
用金型としての上部成型金型９と下部成型金型１０の合
わせ面に形成される、ウィンド部材基体部２の一次成形
品（図３（ｂ））の形状に対応する成形キャビティ１３
に、図３（ａ）に示すように、予め所定の形状に成形さ
れた熱線３をセットする。このとき、セットされる熱線
３の両端には、把手３ａ・３ａが設けられており、この
把手３ａ・３ａによって、上記熱線３が成形キャビティ
１３内の板厚方向断面略中央部で保持できるようになっ
ている。First, as shown in FIG. 1A, a primary molded product of a window member base portion 2 formed on a mating surface of an upper molding die 9 and a lower molding die 10 as injection molding dies. Molding cavity 13 corresponding to the shape of FIG. 3 (b)
Then, as shown in FIG. 3 (a), the heating wire 3 which is formed in a predetermined shape in advance is set. At this time, grips 3a, 3a are provided at both ends of the heat wire 3 to be set, so that the heat wire 3 can be held by the grips 3a, 3a at a substantially central portion in the thickness direction cross section in the molding cavity 13. It has become.
【００１８】次に、図１（ｂ）に示すように、成形キャ
ビティ１３内にウィンド部材基体部２の材料となるポリ
カーボネート或いはアクリル等の透明な樹脂を注入口１
４から射出注入することによって、図１（ｃ）及び図３
（ｂ）に示すように、熱線３が断面略中央部に一体成形
されている平板状のウィンド部材基体部２を成形する。
このとき、熱線３の把手３ａ・３ａを切り取る。Next, as shown in FIG. 1B, a transparent resin such as polycarbonate or acrylic, which is a material of the window member base portion 2, is injected into the molding cavity 13.
1 (c) and 3 by injection injection from FIG.
As shown in (b), the flat wire-shaped window member base portion 2 in which the heating wire 3 is integrally formed in the substantially central portion of the cross section is formed.
At this time, the handles 3a, 3a of the heating wire 3 are cut off.
【００１９】その後、この平板状のウィンド部材基体部
２に、図５に示すように、黒色の例えばセラミック塗料
を塗布することにより縁取り部５を形成する。Thereafter, as shown in FIG. 5, black plate, for example, ceramic coating is applied to the flat plate-shaped window member base portion 2 to form the edging portion 5.
【００２０】次いで、上記平板状のウィンド部材基体部
２を所定形状に熱曲げ成形するために、このウィンド部
材基体部２を予熱して、熱加圧成形用の金型である下部
金型１２上にセットし、図１（ｄ）に示すように、上部
金型１１で押圧して所定形状に成形する。Next, in order to heat-bend the flat plate-shaped window member base portion 2 into a predetermined shape, the window member base portion 2 is preheated, and the lower die 12 is a die for hot press molding. It is set on the top and is pressed by the upper mold 11 to be molded into a predetermined shape, as shown in FIG.
【００２１】その後、例えばシリコン系溶液からなる硬
化処理槽（図示せず）に所定形状に成形されたウィンド
部材基体部２（図２（ａ））を、ディッピングすること
によって、ウィンド部材基体部２の表面及び裏面にハー
ドコート層４・４を形成する（図２（ｂ））。最後に、
熱線３の端部に図示しない端子コネクターを接続する。Thereafter, by dipping the window member base portion 2 (FIG. 2A) formed into a predetermined shape in a hardening treatment tank (not shown) made of, for example, a silicon-based solution, the window member base portion 2 is formed. Hard coat layers 4 and 4 are formed on the front surface and the back surface of the (FIG. 2B). Finally,
A terminal connector (not shown) is connected to the end of the heating wire 3.
【００２２】以上の製造方法において、ウィンド部材１
の基体部であるウィンド部材基体部２を直接３次元形状
に成形するのではなく、一旦平板状の一次成形品を形成
した後、所定形状に成形しているので、従来のように、
導電性細線状部材としての熱線３を３次元形状の金型に
配して射出成形する場合のように、熱線３が射出圧によ
って流されたりすることなく、容易にウィンド部材基体
部２と熱線３等の導電性細線状部材を一体成形すること
ができ、しかも、成形キャビティ１３内に熱線３を板厚
方向断面略中央部に配することで、容易にウィンド部材
１の板厚方向断面略中央部に熱線３を設けることができ
る。さらに、熱線３とウィンド部材基体部２が一体成形
できることから、ガラスウィンド部材にみられるように
ウィンド間に導電性細線状部材を挟んで高温で圧接する
工程をなくすことができ、製造時間、製造工程の短縮、
および製造費の低減が可能となる。In the above manufacturing method, the window member 1
Since the window member base portion 2 which is the base portion is not directly formed into a three-dimensional shape, but is formed into a predetermined shape after once forming a flat plate-shaped primary molded product,
Unlike the case where the heat wire 3 as a conductive thin wire member is placed in a three-dimensional mold and injection-molded, the heat wire 3 is not flowed by the injection pressure, and the window member base portion 2 and the heat wire can be easily connected. 3 and the like can be integrally molded, and by disposing the heating wire 3 in the molding cavity 13 at a substantially central portion of the cross section in the plate thickness direction, the cross section of the window member 1 in the plate thickness direction can be easily formed. The heating wire 3 can be provided in the central portion. Further, since the heating wire 3 and the window member base portion 2 can be integrally molded, it is possible to eliminate the step of sandwiching the conductive thin wire member between the windows and press-contacting it at a high temperature as seen in the glass window member. Shorten the process,
And the manufacturing cost can be reduced.
【００２３】また、上記の製造方法によって製造された
ウィンド部材１では、図５に示すように、熱線３が上述
したようにウィンド部材１の板厚方向断面略中央部に設
けられているので、熱の伝達速度も車室内面側と車室外
面側とでほぼ等しくすることができ、車室外面側の除霜
効率並びに車室内面側の除曇効率を向上させ、なおか
つ、熱線３等の導電性細線状部材を保護し、損傷を無く
し、結果として耐久性を向上させることができる。Further, in the window member 1 manufactured by the above manufacturing method, as shown in FIG. 5, since the heating wire 3 is provided in the substantially central portion in the plate thickness direction cross section of the window member 1 as described above. The heat transfer speed can be made substantially equal between the vehicle interior surface side and the vehicle interior surface side, and the defrosting efficiency on the vehicle interior surface side and the vehicle interior surface side defrosting efficiency can be improved, and the heat wire 3 etc. It is possible to protect the conductive thin wire member, eliminate damage, and improve durability as a result.
【００２４】内、上記の製造方法では、ウィンド部材基
体部２を形成する方法として射出成形方法を用いている
が、例えば射出圧縮成形方法でも良く、特に限定するも
のではない。In the above-mentioned manufacturing method, the injection molding method is used as the method for forming the window member base portion 2, but, for example, the injection compression molding method may be used without any particular limitation.
【００２５】[0025]
【発明の効果】本発明の樹脂製ウィンド部材の製造方法
は、以上のように、導電性細線状部材を、平板状の射出
成形金型の成形キャビティの板厚方向断面略中央部に配
した後、この成形キャビティにウィンド部材基体部形成
用の樹脂を射出して射出成形を行い、ウィンド部材基体
部と導電性細線状部材とを一体成形した後、所定形状に
熱曲げ成形することを特徴とする構成である。As described above, in the method for manufacturing a resin window member according to the present invention, the conductive thin wire member is arranged substantially in the center in the plate thickness direction of the molding cavity of the flat plate injection molding die. After that, a resin for forming the window member base portion is injected into this molding cavity to perform injection molding, and the window member base portion and the conductive thin wire member are integrally molded, and then heat-bent molded into a predetermined shape. The configuration is
【００２６】それゆえ、上記の方法によれば、ウィンド
部材基体部を平板状に成形した後、所定形状に熱曲げ成
形しているので、ウィンド部材基体部の板厚方向断面略
中央部に導電線細線状部材が設けられたウィンド部材を
容易に製造することが可能となり、例えば導電性細線状
部材を熱線とすれば、ウィンド部材の車室内面側と車室
外面側に均等に熱を伝えることができるウィンド部材を
容易に製造することができるという効果を奏する。Therefore, according to the above method, since the window member base portion is formed into a flat plate shape and then heat-bent into a predetermined shape, the window member base portion is electrically conductive to a substantially central portion in the section in the plate thickness direction. It becomes possible to easily manufacture a window member provided with a fine wire member. For example, if a conductive fine wire member is used as a heating wire, the heat is evenly transferred to the inside surface of the wind member and the outside surface of the passenger compartment. The effect that the window member which can be manufactured can be manufactured easily is produced.
【図１】本発明の樹脂製ウィンド部材の製造方法におけ
る工程を示すものであって、同図（ａ）は、熱線を成形
キャビティ内にセットした状態を示す説明図であり、同
図（ｂ）は、樹脂を射出成形した状態を示す説明図であ
り、同図（ｃ）は、ウィンド部材基体部の一次成形品の
断面図であり、同図（ｄ）は、ウィンド部材基体部を所
定の形状に熱成形した状態を示す説明図である。FIG. 1 shows steps in a method of manufacturing a resin window member according to the present invention, wherein FIG. 1 (a) is an explanatory view showing a state in which a heating wire is set in a molding cavity, and FIG. ) Is an explanatory view showing a state in which a resin is injection-molded, (c) is a sectional view of a primary molded product of a window member base portion, and (d) is a predetermined view of the window member base portion. It is an explanatory view showing a state of being thermoformed into the shape of.
【図２】図１において、所定形状に熱成形されたウィン
ド部材基体部のハードコート塗布工程を示すものであっ
て、同図（ａ）は、ウィンド部材基体部の断面図であ
り、同図（ｂ）は、ウィンド部材基体部の表面及び裏面
にハードコート層が形成された状態を示す説明図であ
る。FIG. 2 shows a hard coat applying step of a window member base portion thermoformed into a predetermined shape in FIG. 1, and FIG. 2 (a) is a cross-sectional view of the window member base portion. (B) is an explanatory view showing a state in which a hard coat layer is formed on the front surface and the back surface of the window member base portion.
【図３】図１の樹脂製ウィンド部材の製造方法における
熱線とウィンド部材基体部との一体成形の状態を示すも
のであって、同図（ａ）は、熱線を成形キャビテイ内に
保持した状態を示す斜視図であり、同図（ｂ）は、ウィ
ンド部材基体部の平板状の一次成形品の斜視図である。FIG. 3 is a view showing a state in which a heat ray and a window member base portion are integrally formed in the method for manufacturing the resin window member shown in FIG. 1, and FIG. 3 (a) shows a state in which the heat ray is held in the forming cavity. FIG. 3B is a perspective view of a flat plate-shaped primary molded product of the window member base portion.
【図４】図１の樹脂製ウィンド部材の製造方法によって
製造されたウィンド部材の斜視図である。4 is a perspective view of a window member manufactured by the method for manufacturing the resin window member of FIG. 1. FIG.
【図５】図４におけるＡ−Ａ矢視断面図である。5 is a sectional view taken along the line AA in FIG.
【図６】本実施例に係るウィンド部材を搭載した自動車
の斜視図である。FIG. 6 is a perspective view of an automobile equipped with a window member according to the present embodiment.
【図７】図６におけるＢ−Ｂ矢視断面図である。7 is a cross-sectional view taken along the line BB in FIG.
１ ウィンド部材 ２ ウインド部材基体部 ３ 熱線（導電性細線部材） ４ ハードコート層 ５ 縁取り部 ６ 車体パネル ９ 上部成形金型 １０ 下部成形金型 １１ 上部金型 １２ 下部金型 １３ 成形キャビティ DESCRIPTION OF SYMBOLS 1 Wind member 2 Window member base portion 3 Heat wire (conductive thin wire member) 4 Hard coat layer 5 Edge portion 6 Body panel 9 Upper molding die 10 Lower molding die 11 Upper die 12 Lower die 13 Molding cavity
───────────────────────────────────────────────────── フロントページの続き (72)発明者 山本 武 広島県安芸郡府中町新地３番１号 マツダ 株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takeshi Yamamoto 3-1, Shinchi, Fuchu-cho, Aki-gun, Hiroshima Mazda Motor Corporation
Claims (1)
型の成形キャビティの板厚方向断面略中央部に配した
後、この成形キャビティにウィンド部材基体部形成用の
樹脂を射出して射出成形を行い、ウィンド部材基体部と
導電性細線状部材とを一体成形した後、所定形状に熱曲
げ成形することを特徴とする樹脂製ウィンド部材の製造
方法。1. A conductive thin wire member is arranged at a substantially central portion in a plate thickness direction cross section of a molding cavity of a flat plate injection molding die, and then a resin for forming a window member base portion is injected into this molding cavity. Injection molding is performed to integrally mold the window member base portion and the conductive thin wire member, and then heat bending is performed to a predetermined shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32814292A JPH06170884A (en) | 1992-12-08 | 1992-12-08 | Manufacture of window member made of resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32814292A JPH06170884A (en) | 1992-12-08 | 1992-12-08 | Manufacture of window member made of resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06170884A true JPH06170884A (en) | 1994-06-21 |
Family
ID=18206969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32814292A Pending JPH06170884A (en) | 1992-12-08 | 1992-12-08 | Manufacture of window member made of resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06170884A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19655079C2 (en) * | 1996-10-16 | 1999-08-12 | Volkswagen Ag | Vehicle window module and method for its production |
| DE19642648C2 (en) * | 1996-10-16 | 1999-09-02 | Volkswagen Ag | Vehicle window module and method for its production |
| WO2003026869A1 (en) * | 2001-09-26 | 2003-04-03 | Freeglass Gmbh & Co. Kg | Method for making a plastic pane with electrical conductor structure and plastic pane with embedded wires |
| JP2015026441A (en) * | 2013-07-24 | 2015-02-05 | 日産自動車株式会社 | Lightning arrester for automobile |
-
1992
- 1992-12-08 JP JP32814292A patent/JPH06170884A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19655079C2 (en) * | 1996-10-16 | 1999-08-12 | Volkswagen Ag | Vehicle window module and method for its production |
| DE19642648C2 (en) * | 1996-10-16 | 1999-09-02 | Volkswagen Ag | Vehicle window module and method for its production |
| WO2003026869A1 (en) * | 2001-09-26 | 2003-04-03 | Freeglass Gmbh & Co. Kg | Method for making a plastic pane with electrical conductor structure and plastic pane with embedded wires |
| US7265322B2 (en) | 2001-09-26 | 2007-09-04 | Freeglass Gmbh & Co. Kg | Method for making a plastic pane with electrical conductor structure and plastic pane with embedded wires |
| CN100343038C (en) * | 2001-09-26 | 2007-10-17 | 弗里格拉斯有限责任两合公司 | Method for making a plastic pane with electrical conductor structure and plastic pane with embedded wires |
| CZ300245B6 (en) * | 2001-09-26 | 2009-04-01 | Freeglass Gmbh & Co. Kg | Process for producing a glazing pane of plastic with arrangement of electrical conductors and plastic glazing pane with electrical conductors embedded therein |
| JP2015026441A (en) * | 2013-07-24 | 2015-02-05 | 日産自動車株式会社 | Lightning arrester for automobile |
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