JP2007290549A - Vehicular laminated glass, and its manufacturing method - Google Patents

Vehicular laminated glass, and its manufacturing method Download PDF

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JP2007290549A
JP2007290549A JP2006120908A JP2006120908A JP2007290549A JP 2007290549 A JP2007290549 A JP 2007290549A JP 2006120908 A JP2006120908 A JP 2006120908A JP 2006120908 A JP2006120908 A JP 2006120908A JP 2007290549 A JP2007290549 A JP 2007290549A
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laminated glass
plate
outer plate
inner plate
vehicle
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Kazuo Yamada
和男 山田
Shinichi Nishimoto
真一 西本
Takahiro Shimomura
高弘 下村
Takaaki Kato
高明 加藤
Tomomichi Ito
朋道 伊藤
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Nippon Sheet Glass Co Ltd
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Nippon Sheet Glass Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular laminated glass capable of reducing generation of perspective distortion, and its manufacturing method. <P>SOLUTION: The laminated glass 1 used for a windshield of a vehicle comprises an outer plate 1a and an inner plate 1b, and an intermediate film 3 interposed between the outer plate 1a and the inner plate 1b. Distortions 2a, 2b generated during the manufacture are present in the outer plate 1a and the inner plate 1b. The direction of the distortion 2a in the outer plate 1a and the direction of the distortion 2b in the inner plate 1b are different from each other, and not agreed with the horizontal direction A when the laminated glass 1 is installed in the window of the vehicle. Preferably, the angle α in the direction of the distortion 2a in the outer plate 1a with respect to the longitudinal direction B when the laminated glass 1 is installed in the window of the vehicle is 0-40°, and the angle β in the direction of the distortion 2b in the inner plate 1b with respect to the longitudinal direction B is 2-40° to the opposite side in the direction of the distortion 2a in the outer plate 1a. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、車両用合わせガラス及びその製造方法に関する。   The present invention relates to a laminated glass for vehicles and a method for manufacturing the same.

従来より、車両の窓ガラスとして合わせガラスが多く用いられている。この合わせガラスは、外板及び内板を中間膜を介して接着することにより製造される。この外板及び内板は、フロート法により形成されたガラス板から切り出される。フロート法は、溶融した錫の上にガラス素地を流し込むことにより、平滑性の高いガラス板を形成する製法である。図６に示すように、上記フロート法により形成された連続するガラス板７０は、ガラス素地の流れ方向Ｆに沿って成分のムラが発生するため、この方向Ｆに沿って歪み７１が発生することがある。   Conventionally, a laminated glass is often used as a window glass of a vehicle. This laminated glass is manufactured by bonding an outer plate and an inner plate through an intermediate film. The outer plate and the inner plate are cut out from a glass plate formed by a float method. The float process is a manufacturing method for forming a glass plate with high smoothness by pouring a glass substrate onto molten tin. As shown in FIG. 6, the continuous glass plate 70 formed by the above-described float method generates unevenness of components along the flow direction F of the glass substrate. Therefore, distortion 71 occurs along the direction F. There is.

この連続するガラス板７０から外板及び内板を効率良く切り出すために、幅方向に複数の矩形ガラス板７２が、流れ方向Ｆに対して垂直又は平行な切断線７２ａ，７２ｂに沿って切断される。   In order to efficiently cut the outer plate and the inner plate from the continuous glass plate 70, a plurality of rectangular glass plates 72 in the width direction are cut along cutting lines 72a and 72b perpendicular to or parallel to the flow direction F. The

このように切り出された矩形ガラス板７２から切り出される所定形状の外板及び内板を用いて合わせガラスを製造する場合、外板又は内板における歪みの方向が合わせガラスを車両の窓に設置したときの水平方向と一致すると、車両の振動時や視線が鉛直方向に動いたとき等に透視歪みが目立ち、運転に障害を与える。そのため、図７に示すように、合わせガラス２１を構成する外板２１ａ及び内板２１ｂは、外板２１ａにおける歪み２２ａの方向及び内板２１ｂにおける歪み２２ｂの方向がいずれも合わせガラス２１を車両の窓に設置したときの縦方向Ｇと一致するように切り出され、中間膜２３を介して接着される。そのため、外板２１ａにおける歪み２２ａの方向及び内板２１ｂにおける歪み２２ｂの方向が重なり合うことにより、合わせガラス２１の縦方向Ｇの透視歪みが大幅に増大する。   When the laminated glass is manufactured using the outer plate and the inner plate having a predetermined shape cut out from the rectangular glass plate 72 cut out in this way, the direction of distortion in the outer plate or the inner plate is set in the window of the vehicle. If it coincides with the horizontal direction, perspective distortion is noticeable when the vehicle vibrates or the line of sight moves in the vertical direction, which impedes driving. Therefore, as shown in FIG. 7, the outer plate 21a and the inner plate 21b constituting the laminated glass 21 have a laminated glass 21 in the direction of the distortion 22a in the outer plate 21a and the direction of the distortion 22b in the inner plate 21b. It is cut out so as to coincide with the vertical direction G when it is installed in the window, and is bonded through the intermediate film 23. Therefore, the perspective distortion in the longitudinal direction G of the laminated glass 21 is significantly increased by overlapping the direction of the strain 22a in the outer plate 21a and the direction of the strain 22b in the inner plate 21b.

そこで、外板及び内板の一方の歪みの方向が合わせガラスを車両の窓に設置したときの水平方向に一致し、外板及び内板の他方の歪みの方向が合わせガラスを車両の窓に設置したときの縦方向に一致するように外板及び内板を切り出すことにより、外板及び内板における歪みの方向を互いにずらして透視歪みを軽減させた合わせガラスが提案されている（例えば、特許文献１参照）。
米国特許第３７００５４２号明細書 Therefore, the direction of distortion of one of the outer plate and the inner plate coincides with the horizontal direction when the laminated glass is installed on the window of the vehicle, and the direction of the other distortion of the outer plate and the inner plate is aligned with the window of the laminated glass. Laminated glass has been proposed in which the distortion in the outer plate and the inner plate is shifted from each other to reduce the perspective distortion by cutting out the outer plate and the inner plate so as to coincide with the longitudinal direction when installed (for example, Patent Document 1).
U.S. Pat. No. 3,700,542

しかしながら、上記特許文献１の合わせガラスは、外板及び内板の一方の歪みの方向が合わせガラスを車両の窓に設置したときの水平方向と一致するので、車両の振動時や視線が鉛直方向に動いたとき等に透視歪みが目立つ。   However, in the laminated glass disclosed in Patent Document 1, the direction of distortion of one of the outer plate and the inner plate coincides with the horizontal direction when the laminated glass is installed on the window of the vehicle. Perspective distortion is noticeable when moving to

また、上記特許文献１の合わせガラスは、外板及び内板の一方の歪みの方向が合わせガラスを車両の窓に設置したときの縦方向と一致するので、視線が水平方向に動いたとき等に透視歪みが目立つ。特に、自動車のフロントガラスは、自動車のデザイン上、鉛直に対して斜めに取り付けられているものが多く、この場合、縦方向の透視歪みが目立ち易い。   Moreover, since the direction of distortion of one of the outer plate and the inner plate of the laminated glass of Patent Document 1 coincides with the vertical direction when the laminated glass is installed in a vehicle window, the line of sight moves in the horizontal direction, etc. Perspective distortion is conspicuous. In particular, the front windshield of an automobile is often attached obliquely with respect to the vertical due to the design of the automobile, and in this case, perspective distortion in the vertical direction is easily noticeable.

本発明の目的は、透視歪みの発生を軽減することができる車両用合わせガラス及びその製造方法を提供することにある。   The objective of this invention is providing the laminated glass for vehicles which can reduce generation | occurrence | production of perspective distortion, and its manufacturing method.

上述の目的を達成するために、請求項１記載の車両用合わせガラスは、車両の窓に設置されると共に、外板及び内板から成る車両用合わせガラスにおいて、前記外板における歪みの方向及び前記内板における歪みの方向が、互いに異なると共に、いずれも前記車両用合わせガラスを前記車両の窓に設置したときの水平方向と一致しないことを特徴とする。   In order to achieve the above-mentioned object, a laminated glass for a vehicle according to claim 1 is installed in a window of a vehicle, and in the laminated glass for a vehicle comprising an outer plate and an inner plate, the direction of strain in the outer plate and The directions of distortion in the inner plate are different from each other, and none of the directions coincides with the horizontal direction when the laminated glass for a vehicle is installed on a window of the vehicle.

請求項２記載の車両用合わせガラスは、請求項１記載の車両用合わせガラスにおいて、 前記車両用合わせガラスを前記車両の窓に設置したときの縦方向に対する前記外板及び前記内板の一方における歪みの方向の角度が０〜４０°であり、前記縦方向に対する前記外板及び前記内板の他方における歪みの方向の角度が、前記外板及び前記内板の一方における歪みの方向の反対側に２〜４０°であることを特徴とする。   The laminated glass for a vehicle according to claim 2, wherein the laminated glass for a vehicle according to claim 1 is provided on one of the outer plate and the inner plate with respect to a longitudinal direction when the laminated glass for a vehicle is installed in a window of the vehicle. The angle of the strain direction is 0 to 40 °, and the angle of the strain direction in the other of the outer plate and the inner plate with respect to the longitudinal direction is opposite to the strain direction in one of the outer plate and the inner plate. 2 to 40 °.

請求項３記載の車両用合わせガラスは、請求項１又は２記載の車両用合わせガラスにおいて、前記外板における歪みの方向及び前記内板における歪みの方向は、夫々、前記外板及び前記内板の製造時におけるガラス素地の流れ方向と同一であることを特徴とする。   The laminated glass for vehicles according to claim 3 is the laminated glass for vehicles according to claim 1 or 2, wherein the direction of distortion in the outer plate and the direction of distortion in the inner plate are the outer plate and the inner plate, respectively. It is the same as the flow direction of the glass substrate at the time of manufacture.

請求項４記載の車両用合わせガラスは、請求項１乃至３のいずれか１項に記載の車両用合わせガラスにおいて、前記外板及び前記内板は曲げ成形されたことを特徴とする。   The laminated glass for vehicles according to claim 4 is the laminated glass for vehicles according to any one of claims 1 to 3, wherein the outer plate and the inner plate are formed by bending.

上述の目的を達成するために、請求項５記載の車両用合わせガラスの製造方法は、車両の窓に設置されると共に、外板及び内板から成る車両用合わせガラスの製造方法において、ガラス板から前記外板及び前記内板を切り出す切出ステップと、前記外板及び前記内板を中間膜を介して接着する接着ステップとを備え、前記切出ステップにおいて、前記外板における歪みの方向及び前記内板における歪みの方向が、互いに異なると共に、いずれも前記車両用合わせガラスを前記車両の窓に設置したときの水平方向と一致しないように、前記外板及び前記内板を切り出すことを特徴とする。   In order to achieve the above-mentioned object, a method for producing a laminated glass for a vehicle according to claim 5 is provided in a method for producing a laminated glass for a vehicle comprising an outer plate and an inner plate. A cutting step for cutting out the outer plate and the inner plate, and an adhesion step for bonding the outer plate and the inner plate through an intermediate film, wherein in the cutting step, the direction of strain in the outer plate and The direction of distortion in the inner plate is different from each other, and the outer plate and the inner plate are cut out so that both do not coincide with the horizontal direction when the laminated glass for a vehicle is installed in a window of the vehicle. And

請求項６記載の車両用合わせガラスの製造方法は、請求項５記載の車両用合わせガラスの製造方法において、前記切出ステップにおいて、前記車両用合わせガラスを前記車両の窓に設置したときの縦方向に対する前記外板及び前記内板の一方における歪みの方向の角度が０〜４０°であり、前記縦方向に対する前記外板及び前記内板の他方における歪みの方向の角度が、前記外板及び前記内板の一方における歪みの方向の反対側に２〜４０°となるように、前記外板及び前記内板を切り出すことを特徴とする。   The method for manufacturing a laminated glass for a vehicle according to claim 6 is the method for producing a laminated glass for a vehicle according to claim 5, wherein in the cutting step, the vertical glass when the laminated glass for a vehicle is installed on a window of the vehicle. The angle of the strain direction in one of the outer plate and the inner plate with respect to the direction is 0 to 40 °, and the angle of the strain direction in the other of the outer plate and the inner plate with respect to the longitudinal direction is the outer plate and The outer plate and the inner plate are cut out so as to be 2 to 40 ° on the opposite side of the direction of distortion in one of the inner plates.

請求項７記載の車両用合わせガラスの製造方法は、請求項５又は６記載の車両用合わせガラスの製造方法において、前記ガラス板はフロート法により製造され、前記外板における歪みの方向及び前記内板における歪みの方向は、前記フロート法におけるガラス素地の流れ方向と同一であることを特徴とする。   The method for producing a laminated glass for a vehicle according to claim 7 is the method for producing a laminated glass for a vehicle according to claim 5 or 6, wherein the glass plate is produced by a float process, and the direction of strain in the outer plate and the inner The direction of strain in the plate is the same as the flow direction of the glass substrate in the float method.

請求項８記載の車両用合わせガラスの製造方法は、請求項５乃至７のいずれか１項に記載の車両用合わせガラスの製造方法において、前記外板及び前記内板を曲げ成形する曲げ形成ステップを備えることを特徴とする。   The method for producing a laminated glass for a vehicle according to claim 8 is the method for producing a laminated glass for a vehicle according to any one of claims 5 to 7, wherein the bending step of bending the outer plate and the inner plate is performed. It is characterized by providing.

請求項１記載の車両用合わせガラス又は請求項５記載の車両用合わせガラスの製造方法によれば、外板における歪みの方向及び内板における歪みの方向が、互いに異なると共に、いずれも車両用合わせガラスを車両の窓に設置したときの水平方向と一致しないので、透視歪みの発生を軽減することができる。   According to the method for manufacturing a laminated glass for a vehicle according to claim 1 or a laminated glass for a vehicle according to claim 5, the direction of distortion in the outer plate and the direction of distortion in the inner plate are different from each other, and both are laminated for vehicle. Since the glass does not coincide with the horizontal direction when it is installed on the vehicle window, the occurrence of perspective distortion can be reduced.

請求項２記載の車両用合わせガラス又は請求項６記載の車両用合わせガラスの製造方法によれば、車両用合わせガラスを車両の窓に設置したときの縦方向に対する外板及び内板の一方における歪みの方向の角度が０〜４０°であり、縦方向に対する外板及び内板の他方における歪みの方向の角度が、外板及び内板の一方における歪みの方向の反対側に２〜４０°であるので、透視歪みの発生をより確実に軽減することができる。   According to the method for manufacturing a laminated glass for a vehicle according to claim 2 or a laminated glass for a vehicle according to claim 6, in one of an outer plate and an inner plate with respect to a vertical direction when the laminated glass for a vehicle is installed in a window of a vehicle. The angle of the strain direction is 0 to 40 °, and the angle of the strain direction on the other of the outer plate and the inner plate with respect to the vertical direction is 2 to 40 ° on the opposite side of the strain direction on one of the outer plate and the inner plate. Therefore, it is possible to more reliably reduce the occurrence of perspective distortion.

請求項３記載の車両用合わせガラス又は請求項７記載の車両用合わせガラスの製造方法によれば、外板における歪みの方向及び内板における歪みの方向は、夫々、外板及び内板の製造時におけるガラス素地の流れ方向と同一であるので、フロート法により外板及び内板に歪みが発生した場合に、合わせガラスの透視歪みの発生を軽減することができる。   According to the method for manufacturing a laminated glass for a vehicle according to claim 3 or a laminated glass for a vehicle according to claim 7, the direction of distortion in the outer plate and the direction of distortion in the inner plate are the production of the outer plate and the inner plate, respectively. Since it is the same as the flow direction of the glass substrate at the time, when the outer plate and the inner plate are distorted by the float method, the occurrence of perspective distortion of the laminated glass can be reduced.

請求項４記載の車両用合わせガラス又は請求項８記載の車両用合わせガラスの製造方法によれば、外板及び内板は曲げ成形されているので、車両の窓に好適に用いることができる。   According to the method for manufacturing a laminated glass for a vehicle according to claim 4 or a laminated glass for a vehicle according to claim 8, the outer plate and the inner plate are formed by bending, and thus can be suitably used for a vehicle window.

以下、本発明の実施の形態を図面を参照しながら詳述する。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

図１は、本発明の実施の形態に係る合わせガラスの構成を示す斜視図である。   FIG. 1 is a perspective view showing a configuration of a laminated glass according to an embodiment of the present invention.

図１において、車両のフロントガラスに用いられる合わせガラス１は、外板１ａ及び内板１ｂと、外板１ａ及び内板１ｂに介装された中間膜３とから成る。外板１ａ及び内板１ｂは、例えば、夫々、縦１６０〜３００ｃｍ、横２００〜５００ｃｍ、厚さ１．１〜３．０ｍｍである。外板１ａの厚さ及び内板１ｂの厚さは、同じであってもよく、異なっていてもよい。中間膜３は、材質がポリビニルブチラール等の樹脂であり、厚さが０．３〜１．６ｍｍである。   In FIG. 1, a laminated glass 1 used for a windshield of a vehicle includes an outer plate 1a and an inner plate 1b, and an intermediate film 3 interposed between the outer plate 1a and the inner plate 1b. For example, the outer plate 1a and the inner plate 1b have a length of 160 to 300 cm, a width of 200 to 500 cm, and a thickness of 1.1 to 3.0 mm, respectively. The thickness of the outer plate 1a and the thickness of the inner plate 1b may be the same or different. The intermediate film 3 is made of a resin such as polyvinyl butyral and has a thickness of 0.3 to 1.6 mm.

外板１ａ及び内板１ｂには、夫々、製造時に発生した歪み２ａ，２ｂが存在する。外板１ａにおける歪み２ａの方向及び内板１ｂにおける歪み２ｂの方向は、互いに異なると共に、いずれも合わせガラス１を車両の窓に設置したときの水平方向Ａと一致しない。   In the outer plate 1a and the inner plate 1b, there are distortions 2a and 2b generated at the time of manufacture, respectively. The direction of the strain 2a in the outer plate 1a and the direction of the strain 2b in the inner plate 1b are different from each other and do not coincide with the horizontal direction A when the laminated glass 1 is installed on the window of the vehicle.

好ましくは、合わせガラス１を車両の窓に設置したときの縦方向Ｂに対する外板１ａにおける歪み２ａの方向の角度αは０〜４０°、縦方向Ｂに対する内板１ｂにおける歪み２ｂの方向の角度βは外板１ａにおける歪み２ａの方向の反対側に２〜４０°である。従って、外板１ａにおける歪み２ａの方向に対する内板１ｂにおける歪み２ｂの方向の角度γは２〜８０°である。   Preferably, the angle α in the direction of the strain 2a in the outer plate 1a with respect to the longitudinal direction B when the laminated glass 1 is installed in the vehicle window is 0 to 40 °, and the angle in the direction of the strain 2b in the inner plate 1b with respect to the longitudinal direction B. β is 2 to 40 ° on the opposite side of the direction of the strain 2a in the outer plate 1a. Therefore, the angle γ of the direction of the strain 2b in the inner plate 1b with respect to the direction of the strain 2a in the outer plate 1a is 2 to 80 °.

なお、縦方向Ｂに対する外板１ａにおける歪み２ａの方向の角度αを２〜４０°とし、縦方向Ｂに対する内板１ｂにおける歪み２ｂの方向の角度βを外板１ａにおける歪み２ａの方向の反対側に０〜４０°としてもよい。   The angle α in the direction of the strain 2a in the outer plate 1a with respect to the longitudinal direction B is 2 to 40 °, and the angle β in the direction of the strain 2b in the inner plate 1b with respect to the longitudinal direction B is opposite to the direction of the strain 2a in the outer plate 1a. It is good also as 0-40 degree on the side.

縦方向Ｂに対する外板１ａにおける歪み２ａの方向、及び縦方向Ｂに対する内板１ｂにおける歪み２ｂの方向の少なくとも一方が４０°を超えると、車両の振動時や視線が鉛直方向に動いたとき等に合わせガラス1の透視歪みが目立つ。一方、縦方向Ｂに対する外板１ａにおける歪み２ａの方向、及び縦方向Ｂに対する内板１ｂにおける歪み２ｂの方向が共に２°未満であると、視線が水平方向に動いたとき等に合わせガラス1の透視歪みが目立つ。   When at least one of the direction of the strain 2a in the outer plate 1a with respect to the longitudinal direction B and the direction of the strain 2b in the inner plate 1b with respect to the longitudinal direction B exceeds 40 °, when the vehicle vibrates or the line of sight moves in the vertical direction, etc. The perspective distortion of the glass 1 is conspicuous. On the other hand, if the direction of the strain 2a in the outer plate 1a with respect to the longitudinal direction B and the direction of the strain 2b in the inner plate 1b with respect to the longitudinal direction B are both less than 2 °, the laminated glass 1 is used when the line of sight moves in the horizontal direction. The perspective distortion is conspicuous.

合わせガラス１は、以下のように製造される。   The laminated glass 1 is manufactured as follows.

まず、図２（ａ）に示すように、フロート法により製造された連続するガラス板４から外板１ａ及び内板１ｂ用の矩形ガラス板４ａ，４ｂを切り出す。   First, as shown to Fig.2 (a), the rectangular glass plates 4a and 4b for the outer plate 1a and the inner plate 1b are cut out from the continuous glass plate 4 manufactured by the float glass process.

フロート法は、溶融した錫の上にガラス素地を所定方向Ｃに流し込むことにより、ガラス板を形成する製法である。フロート法により形成されたガラス板４は、ガラス素地の流れ方向Ｃに沿って成分のムラが発生するため、この方向Ｃに沿って歪み２が発生する。   The float process is a manufacturing method in which a glass plate is formed by pouring a glass substrate in a predetermined direction C on molten tin. In the glass plate 4 formed by the float method, unevenness of components occurs along the flow direction C of the glass substrate, so that distortion 2 occurs along this direction C.

ここで、図２（ｂ）に示すように、外板１ａ及び内板１ｂは、合わせガラス１を車両の窓に設置したときの縦方向Ｂに対する外板１ａにおける歪み２ａの方向の角度αが０〜４０°、縦方向Ｂに対する内板１ｂにおける歪み２ｂの方向の角度βが外板１ａにおける歪み２ａの方向の反対側に２〜４０°となるように、矩形ガラス板４ａ，４ｂから夫々所定の形状に切り出される。   Here, as shown in FIG. 2B, the outer plate 1a and the inner plate 1b have an angle α in the direction of the strain 2a in the outer plate 1a with respect to the longitudinal direction B when the laminated glass 1 is installed in a vehicle window. From the rectangular glass plates 4a and 4b, the angle β in the direction of the strain 2b in the inner plate 1b with respect to the longitudinal direction B is 0 to 40 ° and 2 to 40 ° on the opposite side of the direction of the strain 2a in the outer plate 1a. Cut into a predetermined shape.

次に、切り出した外板１ａ及び内板１ｂを所定の形状に切断し、６００〜６５０℃に加熱して曲げ成形する。   Next, the cut out outer plate 1a and inner plate 1b are cut into predetermined shapes, and heated to 600 to 650 ° C. to be bent.

次に、図３に示すように、外板１ａ及び内板１ｂを中間膜３を介して貼り合わせて仮接着し、オートクレーブにより所定の条件で処理して外板１ａ及び内板１ｂを加圧接着することにより、合わせガラス１を製造する。   Next, as shown in FIG. 3, the outer plate 1 a and the inner plate 1 b are bonded to each other through the intermediate film 3 and temporarily bonded, and the outer plate 1 a and the inner plate 1 b are pressed by processing under a predetermined condition by an autoclave. The laminated glass 1 is manufactured by bonding.

図４は、図１の合わせガラス１の透視歪みが軽減されることを説明する図である。   FIG. 4 is a diagram for explaining that the perspective distortion of the laminated glass 1 of FIG. 1 is reduced.

図４（ａ）及び（ｂ）において、垂直に交わる縦の直線と横の直線から成る格子模様が配された格子板３０の前に、合わせガラス１又は従来の合わせガラス２１（図７）を斜めに配置し、格子板３０の格子模様を合わせガラス１，２１を通して観察する。   4 (a) and 4 (b), a laminated glass 1 or a conventional laminated glass 21 (FIG. 7) is placed in front of a lattice plate 30 on which a lattice pattern composed of vertical straight lines and horizontal straight lines is arranged. It arrange | positions diagonally and the lattice pattern of the lattice board 30 is observed through the laminated glass 1,21.

図４（ａ）は、合わせガラス１を車両の窓に設置したときの縦方向Ｂに対する外板１ａにおける歪み２ａの方向の角度αが１０°、縦方向Ｂに対する内板１ｂにおける歪み２ｂの方向の角度βが外板１ａにおける歪み２ａの方向の反対側に１０°である場合の合わせガラス１の透視歪みを示す。また、図４（ｂ）は、外板２１ａにおける歪み２２ａ及び内板２１ｂにおける歪み２２ｂの方向がいずれも合わせガラス２１を車両の窓に設置したときの縦方向Ｇと一致する場合の合わせガラス２１の透視歪みを示す。   FIG. 4A shows an angle α in the direction of the strain 2a in the outer plate 1a with respect to the longitudinal direction B when the laminated glass 1 is installed in a vehicle window, and the direction of the strain 2b in the inner plate 1b with respect to the longitudinal direction B. Shows the perspective distortion of the laminated glass 1 when the angle β is 10 ° on the opposite side of the direction of the distortion 2a in the outer plate 1a. FIG. 4B shows the laminated glass 21 in the case where the directions of the distortion 22a in the outer plate 21a and the distortion 22b in the inner plate 21b coincide with the longitudinal direction G when the laminated glass 21 is installed in a vehicle window. Shows perspective distortion.

外板２１ａにおける歪み２２ａ及び内板２１ｂにおける歪み２２ｂの方向がいずれも合わせガラス２１を車両の窓に設置したときの縦方向Ｇと一致する場合は、図４（ｂ）に示すように、合わせガラス２１を通して観察した格子板３０の格子模様の線の透視歪み２５が大きい。   When the direction of the distortion 22a in the outer plate 21a and the direction of the distortion 22b in the inner plate 21b coincide with the longitudinal direction G when the laminated glass 21 is installed in the window of the vehicle, as shown in FIG. The perspective distortion 25 of the grid pattern line of the grid plate 30 observed through the glass 21 is large.

一方、合わせガラス１を車両の窓に設置したときの縦方向Ｂに対する外板１ａにおける歪み２ａの方向の角度αが１０°、縦方向Ｂに対する内板１ｂにおける歪み２ｂの方向の角度βが外板１ａにおける歪み２ａの方向の反対側に１０°である場合は、図４（ａ）に示すように、合わせガラス１を通して観察した格子板３０の格子模様の線の透視歪み５が小さい。   On the other hand, when the laminated glass 1 is installed on a vehicle window, the angle α in the direction of the strain 2a in the outer plate 1a with respect to the longitudinal direction B is 10 °, and the angle β in the direction of the strain 2b in the inner plate 1b with respect to the longitudinal direction B is outside. When the angle is 10 ° on the opposite side of the direction of the strain 2a in the plate 1a, as shown in FIG. 4A, the perspective distortion 5 of the lattice pattern line of the lattice plate 30 observed through the laminated glass 1 is small.

図５は、図１の合わせガラス１の透視歪みが軽減されることを説明する図である。   FIG. 5 is a diagram for explaining that the perspective distortion of the laminated glass 1 in FIG. 1 is reduced.

図５（ａ）及び（ｂ）において、合わせガラス１又は従来の合わせガラス２１（図７）をプロジェクタの光によりスクリーン４０に投影することにより透視歪みを観察する。   5A and 5B, the perspective distortion is observed by projecting the laminated glass 1 or the conventional laminated glass 21 (FIG. 7) onto the screen 40 by the light of the projector.

図５（ａ）は、合わせガラス１を車両の窓に設置したときの縦方向Ｂに対する外板１ａにおける歪み２ａの方向の角度αが１０°、縦方向Ｂに対する内板１ｂにおける歪み２ｂの方向の角度βが外板１ａにおける歪み２ａの方向の反対側に１０°である場合の合わせガラス１の透視歪みを示す。また、図５（ｂ）は、外板２１ａにおける歪み２２ａ及び内板２１ｂにおける歪み２２ｂの方向がいずれも合わせガラス２１を車両の窓に設置したときの縦方向Ｇと一致する場合の合わせガラス２１の透視歪みを示す。   FIG. 5A shows that the angle α of the direction of the strain 2a in the outer plate 1a with respect to the longitudinal direction B when the laminated glass 1 is installed on the vehicle window is 10 °, and the direction of the strain 2b in the inner plate 1b with respect to the longitudinal direction B. Shows the perspective distortion of the laminated glass 1 when the angle β is 10 ° on the opposite side of the direction of the distortion 2a in the outer plate 1a. FIG. 5B shows a laminated glass 21 in a case where the directions of the strain 22a in the outer plate 21a and the strain 22b in the inner plate 21b coincide with the longitudinal direction G when the laminated glass 21 is installed in a vehicle window. Shows perspective distortion.

外板２１ａにおける歪み２２ａ及び内板２１ｂにおける歪み２２ｂの方向がいずれも合わせガラス２１を車両の窓に設置したときの縦方向Ｇと一致する場合は、図５（ｂ）に示すように、合わせガラス２１には、合わせガラス１と比較して大きな縦方向の透視歪み２６が存在する。   When the direction of the strain 22a on the outer plate 21a and the direction of the strain 22b on the inner plate 21b coincide with the longitudinal direction G when the laminated glass 21 is installed on the vehicle window, as shown in FIG. The glass 21 has a greater perspective distortion 26 in the vertical direction than the laminated glass 1.

一方、合わせガラス１を車両の窓に設置したときの縦方向Ｂに対する外板１ａにおける歪み２ａの方向の角度αが１０°、縦方向Ｂに対する内板１ｂにおける歪み２ｂの方向の角度βが外板１ａにおける歪み２ａの方向の反対側に１０°である場合は、図５（ａ）に示すように、合わせガラス１には、外板１ａ及び内板１ｂにおける歪み２ａ、２ｂに起因する透視歪み６が存在する。しかし、外板１ａにおける歪み２ａと内板１ｂにおける歪み２ｂとは方向が同一でないので、合わせガラス１における透視歪み６は従来の合わせガラス２１における透視歪み２６と比較して小さい。   On the other hand, when the laminated glass 1 is installed on a vehicle window, the angle α in the direction of the strain 2a in the outer plate 1a with respect to the longitudinal direction B is 10 °, and the angle β in the direction of the strain 2b in the inner plate 1b with respect to the longitudinal direction B is outside. When the angle is 10 ° on the opposite side of the direction of the strain 2a in the plate 1a, as shown in FIG. 5 (a), the laminated glass 1 is seen through due to the strains 2a and 2b in the outer plate 1a and the inner plate 1b. There is distortion 6. However, since the strain 2a in the outer plate 1a and the strain 2b in the inner plate 1b are not in the same direction, the perspective distortion 6 in the laminated glass 1 is smaller than the perspective distortion 26 in the conventional laminated glass 21.

本実施の形態によれば、合わせガラス１を車両の窓に設置したときの縦方向Ｂに対する外板１ａにおける歪み２ａの方向の角度αは０〜４０°、縦方向Ｂに対する内板１ｂにおける歪み２ｂの方向の角度βは外板１ａにおける歪み２ａの方向の反対側に２〜４０°であるので、合わせガラス１における透視歪み５，６の発生を軽減することができる。   According to the present embodiment, the angle α of the direction of the strain 2a in the outer plate 1a with respect to the longitudinal direction B when the laminated glass 1 is installed in the vehicle window is 0 to 40 °, and the strain in the inner plate 1b with respect to the longitudinal direction B. Since the angle β in the direction 2b is 2 to 40 ° on the opposite side of the direction of the strain 2a in the outer plate 1a, the occurrence of perspective distortions 5 and 6 in the laminated glass 1 can be reduced.

本実施の形態では、合わせガラス１を車両の窓に設置したときの縦方向Ｂに対する外板１ａにおける歪み２ａの方向の角度αを０〜４０°、縦方向Ｂに対する内板１ｂにおける歪み２ｂの方向の角度βを外板１ａにおける歪み２ａの方向の反対側に２〜４０°としたが、これに限定されるものではなく、外板１ａにおける歪み２ａの方向及び内板１ｂにおける歪み２ｂの方向が、互いに異なると共に、いずれも合わせガラス１を車両の窓に設置したときの水平方向Ａと一致しなければよい。   In the present embodiment, the angle α of the direction of the strain 2a in the outer plate 1a with respect to the longitudinal direction B when the laminated glass 1 is installed in a vehicle window is 0 to 40 °, and the strain 2b in the inner plate 1b with respect to the longitudinal direction B is The direction angle β is set to 2 to 40 ° on the opposite side of the direction of the strain 2a in the outer plate 1a, but is not limited to this, and the direction of the strain 2a in the outer plate 1a and the strain 2b in the inner plate 1b are not limited thereto. The directions may be different from each other, and none of them coincides with the horizontal direction A when the laminated glass 1 is installed on the window of the vehicle.

本実施の形態では、中間膜３の材質をポリビニルブチラールとしたが、これに限定されるものではなく、合わせガラス１の用途に応じて適切な材質が選択される。   In the present embodiment, the material of the intermediate film 3 is polyvinyl butyral. However, the material is not limited to this, and an appropriate material is selected according to the use of the laminated glass 1.

本実施の形態では、合わせガラス１の用途を車両のフロントガラスとしたが、合わせガラス１の用途はこれに限定されるものではなく、サイドガラス、リアガラス、ルーフガラス、又は車両以外に用いられるガラスであってもよい。   In the present embodiment, the use of the laminated glass 1 is a vehicle windshield, but the use of the laminated glass 1 is not limited thereto, and is a side glass, a rear glass, a roof glass, or a glass used for other than a vehicle. There may be.

本実施の形態では、合わせガラス１について説明したが、本発明は、複層ガラス等、ガラス板を複数重ね合わせたものや、ポリカーボネート等の樹脂板を複数重ね合わせたものや、ガラス板とポリカーボネート等の樹脂板とを組み合わせたものに適用されてもよい。また、ガラス板の表面に、撥水性膜や低反射膜等の機能性膜が形成されていてもよい。   Although the laminated glass 1 was demonstrated in this Embodiment, this invention is what laminated | stacked multiple glass plates, such as multilayer glass, what laminated | stacked multiple resin plates, such as a polycarbonate, a glass plate, and polycarbonate. It may be applied to a combination with a resin plate such as. Further, a functional film such as a water repellent film or a low reflection film may be formed on the surface of the glass plate.

本発明の実施の形態に係る合わせガラスの構成を示す斜視図である。It is a perspective view which shows the structure of the laminated glass which concerns on embodiment of this invention. 図１における外板１ａ及び内板１ｂを切り出す工程を説明する正面図である。It is a front view explaining the process of cutting out the outer plate 1a and the inner plate 1b in FIG. 図２における外板１ａ及び内板１ｂを接着する工程を説明する斜視図である。It is a perspective view explaining the process of adhere | attaching the outer plate 1a and the inner plate 1b in FIG. 図１の合わせガラス１の透視歪みが軽減されることを説明する図であり、（ａ）は合わせガラス１の透視歪みを示し、（ｂ）は従来の合わせガラス２１の透視歪みを示す。It is a figure explaining that the perspective distortion of the laminated glass 1 of FIG. 1 is reduced, (a) shows the perspective distortion of the laminated glass 1, (b) shows the perspective distortion of the conventional laminated glass 21. FIG. 図１の合わせガラス１の透視歪みが軽減されることを説明する図であり、（ａ）は合わせガラス１の透視歪みを示し、（ｂ）は従来の合わせガラス２１の透視歪みを示す。It is a figure explaining that the perspective distortion of the laminated glass 1 of FIG. 1 is reduced, (a) shows the perspective distortion of the laminated glass 1, (b) shows the perspective distortion of the conventional laminated glass 21. FIG. 従来の合わせガラスの外板及び内板を切り出す工程を説明する正面図である。It is a front view explaining the process of cutting out the outer plate and inner plate of the conventional laminated glass. 従来の合わせガラスの外板２１ａ及び内板２１ｂを接着する工程を説明する斜視図である。It is a perspective view explaining the process of adhere | attaching the outer plate 21a and the inner plate 21b of the conventional laminated glass.

符号の説明Explanation of symbols

１ 合わせガラス
１ａ 外板
１ｂ 内板
２ 歪み
２ａ 外板における歪み
２ｂ 内板における歪み
３ 中間膜
４ ガラス板
５，６ 透視歪み DESCRIPTION OF SYMBOLS 1 Laminated glass 1a Outer plate 1b Inner plate 2 Strain 2a Strain in outer plate 2b Strain in inner plate 3 Intermediate film 4 Glass plates 5, 6 Perspective distortion

Claims (8)

車両の窓に設置されると共に、外板及び内板から成る車両用合わせガラスにおいて、
前記外板における歪みの方向及び前記内板における歪みの方向が、互いに異なると共に、いずれも前記車両用合わせガラスを前記車両の窓に設置したときの水平方向と一致しないことを特徴とする車両用合わせガラス。 In the laminated glass for vehicles consisting of an outer plate and an inner plate, installed on the window of the vehicle,
The direction of distortion in the outer plate and the direction of distortion in the inner plate are different from each other, and both do not coincide with the horizontal direction when the laminated glass for a vehicle is installed in the window of the vehicle. Laminated glass. 前記車両用合わせガラスを前記車両の窓に設置したときの縦方向に対する前記外板及び前記内板の一方における歪みの方向の角度が０〜４０°であり、前記縦方向に対する前記外板及び前記内板の他方における歪みの方向の角度が、前記外板及び前記内板の一方における歪みの方向の反対側に２〜４０°であることを特徴とする請求項１記載の車両用合わせガラス。   The angle of the strain direction in one of the outer plate and the inner plate with respect to the vertical direction when the vehicle laminated glass is installed on the window of the vehicle is 0 to 40 °, and the outer plate and the vertical direction with respect to the vertical direction The laminated glass for vehicles according to claim 1, wherein an angle in a direction of distortion in the other of the inner plates is 2 to 40 ° on a side opposite to a direction of distortion in one of the outer plate and the inner plate. 前記外板における歪みの方向及び前記内板における歪みの方向は、夫々、前記外板及び前記内板の製造時におけるガラス素地の流れ方向と同一であることを特徴とする請求項１又は２記載の車両用合わせガラス。   The direction of strain in the outer plate and the direction of strain in the inner plate are the same as the flow direction of the glass substrate during the production of the outer plate and the inner plate, respectively. Laminated glass for vehicles. 前記外板及び前記内板は曲げ成形されていることを特徴とする請求項１乃至３のいずれか１項に記載の車両用合わせガラス。   The laminated glass for vehicles according to any one of claims 1 to 3, wherein the outer plate and the inner plate are formed by bending. 車両の窓に設置されると共に、外板及び内板から成る車両用合わせガラスの製造方法において、
ガラス板から前記外板及び前記内板を切り出す切出ステップと、
前記外板及び前記内板を中間膜を介して接着する接着ステップとを備え、
前記切出ステップにおいて、前記外板における歪みの方向及び前記内板における歪みの方向が、互いに異なると共に、いずれも前記車両用合わせガラスを前記車両の窓に設置したときの水平方向と一致しないように、前記外板及び前記内板を切り出すことを特徴とする車両用合わせガラスの製造方法。 In the manufacturing method of the laminated glass for vehicles which is installed in the window of a vehicle and consists of an outer plate and an inner plate,
A cutting step of cutting out the outer plate and the inner plate from a glass plate;
An adhesion step of adhering the outer plate and the inner plate through an intermediate film,
In the cutting step, the direction of distortion in the outer plate and the direction of distortion in the inner plate are different from each other, and neither is in agreement with the horizontal direction when the laminated glass for a vehicle is installed in the window of the vehicle. And manufacturing the laminated glass for a vehicle, wherein the outer plate and the inner plate are cut out. 前記切出ステップにおいて、前記車両用合わせガラスを前記車両の窓に設置したときの縦方向に対する前記外板及び前記内板の一方における歪みの方向の角度が０〜４０°であり、前記縦方向に対する前記外板及び前記内板の他方における歪みの方向の角度が、前記外板及び前記内板の一方における歪みの方向の反対側に２〜４０°となるように、前記外板及び前記内板を切り出すことを特徴とする請求項５記載の車両用合わせガラスの製造方法。   In the cutting step, an angle of a distortion direction in one of the outer plate and the inner plate with respect to a vertical direction when the laminated glass for a vehicle is installed in a window of the vehicle is 0 to 40 °, and the vertical direction The outer plate and the inner plate so that the angle of the strain direction in the other of the outer plate and the inner plate is 2 to 40 ° on the opposite side of the strain direction in one of the outer plate and the inner plate. 6. The method for producing a laminated glass for a vehicle according to claim 5, wherein the plate is cut out. 前記ガラス板はフロート法により製造され、前記外板における歪みの方向及び前記内板における歪みの方向は、前記フロート法におけるガラス素地の流れ方向と同一であることを特徴とする請求項５又は６記載の車両用合わせガラスの製造方法。   The glass plate is manufactured by a float process, and the direction of strain in the outer plate and the direction of strain in the inner plate are the same as the flow direction of the glass substrate in the float method. The manufacturing method of the laminated glass for vehicles as described. 前記外板及び前記内板を曲げ成形する曲げ形成ステップを備えることを特徴とする請求項５乃至７のいずれか１項に記載の車両用合わせガラスの製造方法。   The method for manufacturing a laminated glass for a vehicle according to any one of claims 5 to 7, further comprising a bending step of bending the outer plate and the inner plate.
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US9044919B2 (en) 2009-04-20 2015-06-02 Saint-Gobain Glass France Transparent laminated glass and use thereof
JP2013525235A (en) * 2009-04-20 2013-06-20 サン−ゴバン グラス フランス Transparent laminated glass and use thereof
WO2016121559A1 (en) * 2015-01-26 2016-08-04 旭硝子株式会社 Laminated glass
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EP3088175A1 (en) 2015-04-27 2016-11-02 Ricoh Company, Ltd. Method for manufacturing laminated glass, laminated glass, method for calibrating stereo camera, and calibration system
CN106101686A (en) * 2015-04-27 2016-11-09 株式会社理光 Laminated glass and manufacture method, the calibration steps of stereoscopic camera and calibration system
EP3630483B1 (en) 2017-05-24 2021-10-27 Saint-Gobain Glass France Composite panel and method for producing same
WO2019163969A1 (en) * 2018-02-23 2019-08-29 富士フイルム株式会社 Method for manufacturing laminated glass for displaying image, laminated glass for displaying image, and image display system
JPWO2019163969A1 (en) * 2018-02-23 2021-01-14 富士フイルム株式会社 Manufacturing method of laminated glass for image display, laminated glass for image display, and image display system
US10773489B2 (en) 2018-05-31 2020-09-15 Agc Automotive Americas Co. Glass article having perpendicular draw lines
US10981357B2 (en) 2018-05-31 2021-04-20 Agc Automotive Americas Co. Glass article
WO2020094420A1 (en) * 2018-11-05 2020-05-14 Saint-Gobain Glass France Composite panel with a tapering cross-section
US11826987B2 (en) 2019-03-26 2023-11-28 Pilkington Group Limited Laminated glazing and process
WO2021106365A1 (en) * 2019-11-26 2021-06-03 Ａｇｃ株式会社 Heating wire-provided glass plate
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