JPH09218277A - Cover glass for wrist watch and its manufacture - Google Patents
Cover glass for wrist watch and its manufactureInfo
- Publication number
- JPH09218277A JPH09218277A JP4790296A JP4790296A JPH09218277A JP H09218277 A JPH09218277 A JP H09218277A JP 4790296 A JP4790296 A JP 4790296A JP 4790296 A JP4790296 A JP 4790296A JP H09218277 A JPH09218277 A JP H09218277A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- cover glass
- colored
- transparent
- cover
- 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.)
- Withdrawn
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- Surface Treatment Of Glass (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は腕時計用カバーガラスに
関するものであり、特に色彩豊かなファッショナブルな
デザインを用いる装飾時計の設計、多様性を広げるもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cover glass for a wristwatch, and in particular to expand the design and versatility of a decorative timepiece using a colorful and fashionable design.
【０００２】[0002]
【従来の技術および課題】従来、腕時計用カバーガラス
の材質の種類は、低価格のプラスチックの物からクリス
タルガラス（通称：青板、白板、ＢＫ−７ガラス等）、
及び高級腕時計に用いられる単結晶サファイヤを使用し
たサファイヤガラスまで数多くあり、使用目的、質感、
価格に見合った各種材質がカバーガラスとして転用され
使用されている。2. Description of the Related Art Conventionally, there are various types of materials for cover glasses for wristwatches, from low-priced plastic materials to crystal glass (commonly known as blue plate, white plate, BK-7 glass, etc.).
Also, there are many sapphire glasses that use single crystal sapphire used for high-end watches.
Various materials that are suitable for the price are diverted and used as cover glass.
【０００３】さらに近年においては、単にガラス材質の
違いだけでなく、表示部分の美観に特徴を持たせた、い
わゆる装飾ガラス、すなわちガラス内面にスクリーン印
刷あるいは金属蒸着膜のパターニングを施した腕時計用
カバーガラスが数多く製造されており、一般的な無色透
明なカバーガラスに比べて多種多様なデザインとカラフ
ルな色彩が可能となった。Further, in recent years, not only the difference in the glass material but also the so-called decorative glass having a characteristic of the aesthetic appearance of the display portion, that is, a watch cover in which the inner surface of the glass is screen-printed or patterned with a metal deposition film Many glasses have been manufactured, and a wide variety of designs and colorful colors are possible compared with general colorless and transparent cover glass.
【０００４】しかしこの従来からの印刷ガラスは、本来
無色透明であるガラスの表面に有機インク及び金属蒸着
などの表面処理を施したものであり、この方法による
と、ガラス表面における着色塗布の印刷処理加工だけと
なるので、デザインの幅が平面的な表示表現に制限され
てしまい、立体的な凹凸表示、あるいは透明感のある奥
行きは得られない。However, this conventional printing glass is a glass which is originally colorless and transparent and has been subjected to a surface treatment such as organic ink and metal vapor deposition. According to this method, a printing treatment for coloring coating on the glass surface is performed. Since it is only processed, the width of the design is limited to a flat display expression, and it is not possible to obtain a three-dimensional uneven display or a transparent depth.
【０００５】また表面処理による印刷は、ガラス母材と
の密着性が悪く剥離の問題が多々あり、さらに印刷面は
耐摩耗性がほとんどないので、腕時計として組み込んだ
場合、カバーガラス外装側への印刷表示は全くできない
のが現状であった。Further, printing by surface treatment has poor adhesion to the glass base material and there are many problems of peeling, and since the printed surface has almost no abrasion resistance, when it is incorporated as a wristwatch, it is attached to the exterior side of the cover glass. The current situation is that it cannot print out at all.
【０００６】このためガラス表面部分だけでなく、ガラ
ス材質内部まで着色する方法、例えば着色ガラスの持つ
クリアーな質感、あるいは文字板と組み合わせた時、立
体感と奥行き感のある腕時計用カバーガラスのデザイン
に対応できる新しい装飾加工方法が望まれていた。For this reason, a method of coloring not only the glass surface portion but also the inside of the glass material, for example, the clear texture of colored glass, or the design of a cover glass for a wristwatch that gives a sense of depth and depth when combined with a dial. There has been a demand for a new decoration processing method that can handle the above.
【０００７】これに対応するガラスの装飾方法の一つに
「被せガラス」の応用があるが、本来、無色透明な無機
ガラス板と着色ガラス板とを融着して組み合わせた「被
せガラス」は、職人芸とされるガラス工芸等で用いられ
る色彩豊かな着色ガラス材料の一種であり、花瓶やイン
テリア置物等の色彩表現を示すものとして使用されてい
たが、腕時計用カバーガラスの大きさ、寸法加工精度に
合わせて均一に色彩表現を再現し生成させることは不向
きなものであった。One of the glass decoration methods corresponding to this is the application of "cover glass". Originally, "cover glass" which is a combination of a colorless transparent inorganic glass plate and a colored glass plate fused together is , A kind of colorful colored glass material used in craftsmanship such as glass craft, and was used to show the color expression of vases, interior figurines, etc. It was unsuitable to uniformly reproduce and generate the color expression according to the processing accuracy.
【０００８】[0008]
【課題を解決するための手段】本発明は、上記の「被せ
ガラス」のもつ特有の色彩表現を応用し、量産加工技術
を確立したものであり、腕時計に用いられる風防窓、い
わゆるカバーガラスにおいて、成形加工材料に無色透明
な無機ガラス板と着色ガラス板を融着して組み合わせ、
これをガラス熱間プレスでガラス板表面に凹凸形状を成
形加工した後、着色ガラス側の凸部を研削除去し、透明
なガラス面と共に整厚した上下面を鏡面研摩することに
より、目的に応じた模様，形状，大きさのステンドガラ
ス調の装飾部分を、腕時計用カバーガラスに再現性良く
形成するものである。The present invention is to establish a mass production processing technique by applying the color expression peculiar to the above "cover glass". , A colorless and transparent inorganic glass plate and a colored glass plate are fused and combined with the molding material,
After molding the uneven shape on the surface of the glass plate with a glass hot press, the convex part on the colored glass side is ground and removed, and the upper and lower surfaces, which are thickened together with the transparent glass surface, are mirror-polished, depending on the purpose. The stained glass-like decorative parts with different patterns, shapes, and sizes are formed on the watch cover glass with good reproducibility.
【０００９】このステンドガラス調の装飾ガラスを腕時
計用カバーガラスに応用するためには、約30mmφ径のガ
ラス中心からプラスマイナス0.15mm以内の位置精度で、
着色部分のパターニングを再現性良く短時間で得られな
ければならず、部分的な熱加工処理、及び量産性のある
加工方法が必要である。In order to apply this stained glass-like decorative glass to a cover glass for a wristwatch, with a positional accuracy within plus or minus 0.15 mm from the glass center with a diameter of about 30 mm,
Patterning of the colored portion must be obtained with good reproducibility in a short time, and a partial heat processing treatment and a processing method with mass productivity are required.
【００１０】[0010]
【実施例１】本発明のカバーガラス製造工程の実施例を
図１〜図５を用いて説明する。まず図２に示すように溶
着する色ガラスとして、熱膨張係数が一般的なカバーガ
ラス（白板）と同等な透明感のあるコバルトブルーの着
色ガラス１を用い、厚み1.0mm、外径40mmφに成形し片
面を研摩した後、同じく厚み2.0mm、外径40mmφに成形
加工した透明ガラス２（白板）と研摩面を組み合わせ密
着させ、熱溶着処理して被せガラス３を作成した。Example 1 An example of the cover glass manufacturing process of the present invention will be described with reference to FIGS. First, as shown in FIG. 2, as the colored glass to be welded, cobalt blue colored glass 1 having a transparent coefficient equivalent to that of a general cover glass (white plate) having a thermal expansion coefficient was used, and molded into a thickness of 1.0 mm and an outer diameter of 40 mmφ. Then, after polishing one side, the transparent glass 2 (white plate) similarly shaped and processed to have a thickness of 2.0 mm and an outer diameter of 40 mm and a polished surface were combined and brought into close contact with each other, and heat-welded to form a cover glass 3.
【００１１】次に、割れ防止のための予備加熱テーブル
に被せガラス３を乗せて温度400℃に加熱した後、図３
に示す熱間プレス成形機の回転台４（設定温度400℃）
中央に被せガラス３を移動してセットし、回転台４を低
速回転させ、バーナー５で外周部分を加熱しながら所定
温度約830℃まで加熱した。Next, after placing the cover glass 3 on a preheating table for preventing cracking and heating it to a temperature of 400 ° C., FIG.
Rotating table 4 of hot press molding machine shown in (setting temperature 400 ℃)
The cover glass 3 was moved and set in the center, the rotary table 4 was rotated at a low speed, and the outer peripheral portion was heated by the burner 5 to a predetermined temperature of about 830 ° C.
【００１２】この時、被せガラス３外周部がバーナー５
の炎により軟化する状態（ガラスの作業域温度）まで加
熱し続け、同時に図３のような形状でガラス接触表面部
分を鏡面加工した超硬合金製（タングステンカーバイト
に白金の表面処理を施した型材）からなるプレス金型６
を、電気ヒーターにて加熱しながら、プレス成形する被
せガラス３の転移点温度より低い温度の約520℃に温度
設定する。At this time, the outer peripheral portion of the cover glass 3 is burner 5
Continue heating to a state where it softens due to the flame (working temperature of glass), and at the same time, the glass contact surface part is mirror-finished in the shape as shown in FIG. 3 (tungsten carbide is surface-treated with platinum). Press die 6 made of die material)
While being heated by an electric heater, the temperature is set to about 520 ° C., which is lower than the transition temperature of the cover glass 3 to be press-molded.
【００１３】この被せガラス３とプレス金型６双方の処
理温度設定終了後、回転台４を止め、熱間プレス成形の
ためプレス金型６を降下させ、軟化状態の被せガラス３
に対し、上方向から圧力を加え、プレス金型６の凹凸鏡
面部分で被せガラス３外周部分をプレス成形する。この
プレス成形工程において、プレス圧は15〜20Kg／cm2の
加重圧力で、成形保持時間は約２秒で行った。After the processing temperatures of both the cover glass 3 and the press mold 6 have been set, the rotary table 4 is stopped, the press mold 6 is lowered for hot press molding, and the cover glass 3 is in a softened state.
On the other hand, pressure is applied from above, and the outer peripheral portion of the cover glass 3 is press-molded by the concave-convex mirror surface portion of the press die 6. In this press-molding process, the press pressure was 15 to 20 kg / cm 2 and the mold holding time was about 2 seconds.
【００１４】このときプレス成形された被せガラス３
は、図４のように中央部が凸状になり、着色ガラス部分
は中央部と外周部で段差が生じる。Cover glass 3 press-formed at this time
4, the central portion has a convex shape as shown in FIG. 4, and the colored glass portion has a step between the central portion and the outer peripheral portion.
【００１５】この手順でプレス成形加工をし、得られた
被せガラス３を約550℃でアニール熱処理を施した後、
図５に示すように着色ガラス１の凸部分の破線部Ａを研
削し、中央部に透明ガラス２が現れる状態まで除去し、
外径（図５のハッチングＢ部分）を研削し、上下面を研
摩加工し、円板状カバーガラスを作成した。さらにガラ
スをイオン交換法により化学強化し、腕時計用風防窓と
して十分な破壊強度を確保した。Press molding is carried out by this procedure, and the obtained cover glass 3 is annealed at about 550 ° C., and thereafter,
As shown in FIG. 5, the broken line portion A of the convex portion of the colored glass 1 is ground and removed until the transparent glass 2 appears in the central portion,
The outer diameter (hatched portion B in FIG. 5) was ground, and the upper and lower surfaces were polished to form a disk-shaped cover glass. In addition, the glass was chemically strengthened by the ion-exchange method to ensure sufficient breaking strength as a windshield for watches.
【００１６】完成したカバーガラスは、図１に示す側断
面及び上面図のように外観上従来の印刷ガラスとは一見
して異なり、ガラス窓中央部分が無色透明で、外周部分
が色のバラツキの無い均一な透明感のあるコバルトブル
ー色のステンドガラス調デザインのもが得られた。これ
を腕時計用風防窓として時計枠に組み込むと、文字板と
の表示部分に色彩豊かな透明感と奥行きのある独特の表
示デザインが得られた。The finished cover glass differs from the conventional printed glass in appearance in appearance as shown in the side cross section and the top view of FIG. 1, and the central portion of the glass window is colorless and transparent, and the peripheral portion has color variations. A cobalt blue stained glass design with a uniform and transparent feeling was obtained. When this was incorporated into a watch frame as a windshield for a wristwatch, a unique display design with a colorful transparency and depth was obtained in the display part with the dial.
【００１７】[0017]
【実施例２】本発明のカバーガラスの製造工程の他の一
例の実施例を図６〜図９を用いて説明する。まず、レッ
ド（Ｒ）、グリーン（Ｇ）、無色透明（Ｃ）の2.5mm×
1.5mm角で長さ40mmの棒状の三種のガラスを順番に並
べ、45mm角，厚み2.0mm寸法に成形加工した透明ガラス
２と組み合わせ熱溶着処理し、これをさらに外径40mmφ
に成形加工し被せガラス７を作成した。Example 2 Another example of the manufacturing process of the cover glass of the present invention will be described with reference to FIGS. First, 2.5 mm × red (R), green (G), colorless and transparent (C)
Three kinds of 1.5 mm square and 40 mm long rod-shaped glass are arranged in order, combined with transparent glass 2 molded into a 45 mm square and 2.0 mm thick, and heat-welded.
Then, the cover glass 7 was formed by molding.
【００１８】次に実施例１同様、予備加熱テーブルに乗
せて温度400℃に加熱した後、図７に示すプレス成形機
の回転台４（設定温度400℃）中央にガラスをセット
し、低速回転させ、バーナー５で外周部分を加熱しなが
ら所定温度約830℃まで加熱した。この時、被せガラス
７外周部がバーナー５の炎により軟化する状態（ガラス
の作業域温度）まで加熱し続ける。Next, as in Example 1, after placing on a preheating table and heating to a temperature of 400 ° C., glass was set in the center of the rotary table 4 (set temperature 400 ° C.) of the press molding machine shown in FIG. 7 and rotated at low speed. Then, the outer peripheral portion was heated by the burner 5 to a predetermined temperature of about 830 ° C. At this time, heating is continued until the outer peripheral portion of the cover glass 7 is softened by the flame of the burner 5 (glass working area temperature).
【００１９】同時にガラス接触表面部分を鏡面加工した
ニッケル−クロム（Ni-Cr）合金からなるプレス金型６
を、電気ヒーターにて加熱しながら、プレス成形する被
せガラス７の転移点温度より低い温度の約520℃に温度
設定する。At the same time, a press die 6 made of a nickel-chromium (Ni-Cr) alloy in which the glass contact surface portion is mirror-finished
While being heated by an electric heater, the temperature is set to about 520 ° C., which is lower than the transition point temperature of the cover glass 7 to be press-molded.
【００２０】この被せガラス７とプレス金型６双方の処
理温度設定終了後、回転台４を止め、プレス成形のため
プレス金型６を降下させ、軟化状態の被せガラス７に対
し、上方向から圧力を加え、プレス金型６の鏡面凹凸部
分で被せガラス７外周部分をプレス成形する。このプレ
ス成形工程において、プレス圧は15〜20Kg／cm2の加重
圧力で、成形保持時間は約２秒で行った。After the processing temperatures of both the cover glass 7 and the press mold 6 have been set, the rotary table 4 is stopped, and the press mold 6 is lowered for press molding, so that the cover glass 7 in the softened state is moved from above. A pressure is applied to cover the outer peripheral portion of the glass 7 with the mirror surface irregularities of the press die 6 for press molding. In this press-molding process, the press pressure was 15 to 20 kg / cm 2 and the mold holding time was about 2 seconds.
【００２１】このときプレス成形された被せガラス７
は、図８のように中央部が凸状になり、三種の溶着ガラ
ス部分は中央部と外周部で段差が生じる。Cover glass 7 press-formed at this time
As shown in FIG. 8, the central portion has a convex shape, and the three kinds of welded glass portions have a step between the central portion and the outer peripheral portion.
【００２２】この手順でプレス成形加工をし、得られた
被せガラス７を約550℃でアニール熱処理を施した後、
三種のガラス凸部分を研削し、中央部に透明ガラス２が
現れる状態まで除去し、外径を研削し、上下面を研摩加
工して円板状カバーガラスを作成した。さらにガラスを
イオン交換法により化学強化し、腕時計用風防窓として
十分な破壊強度を確保した。Press molding is performed in this procedure, and the obtained cover glass 7 is annealed at about 550 ° C.
Three kinds of glass convex portions were ground, removed until the transparent glass 2 appeared in the central portion, the outer diameter was ground, and the upper and lower surfaces were polished to prepare a disk-shaped cover glass. In addition, the glass was chemically strengthened by the ion-exchange method to ensure sufficient breaking strength as a windshield for watches.
【００２３】完成したカバーガラスは、図９に示す側断
面及び上面図のように外観上従来の印刷ガラスとは一見
して異なり、ガラス窓中央部分が無色透明で、外周部分
が透明感のあるレッド（Ｒ）、グリーン（Ｇ）、無色透
明（Ｃ）の格子状のステンドガラス調デザインのもので
あり、腕時計用風防窓として時計枠に組み込むと、文字
板との表示部分に色彩豊かな透明感と奥行きのある独特
の表示デザインが得られた。The finished cover glass differs from the conventional printed glass in appearance in appearance as shown in the side sectional view and the top view of FIG. 9, and the central portion of the glass window is colorless and transparent, and the outer peripheral portion is transparent. It is a red (R), green (G), colorless transparent (C) grid-like stained glass design, and when incorporated into a watch frame as a windshield for a wristwatch, the display part with the dial is colorful and transparent. A unique display design with a feeling and depth was obtained.
【００２４】[0024]
【実施例３】本発明のカバーガラスの製造工程の他の一
例の実施例を図10〜図12を用いて説明する。まず実施例
１同様、色ガラスとして透明感のあるコバルトブルーの
着色ガラスを厚み1.0mm、外径40mmφに成形し片面を研
摩した後、同じく厚み2.0mm、外径40mmφに成形加工し
た透明ガラス（白板）と研摩面を組み合わせ密着させ、
熱溶着処理して被せガラスを作成した。[Embodiment 3] Another embodiment of the manufacturing process of the cover glass of the present invention will be described with reference to FIGS. First, as in Example 1, a transparent colored glass of cobalt blue was molded as a colored glass to have a thickness of 1.0 mm and an outer diameter of 40 mmφ, and one surface was polished, and then a transparent glass molded to the same thickness of 2.0 mm and an outer diameter of 40 mmφ ( White plate) and polished surface are combined and brought into close contact,
A heat-welding process was performed to prepare a cover glass.
【００２５】次に実施例１同様の加工手順に従い、図10
のように被せガラス８をプレス成形機の回転台４にセッ
トし、加熱しながら軟化状態の被せガラス８をプレス成
形し、上面を球Ｒ形状（曲率Ｒ=200mmのドーム状）に加
工した。Next, according to the same processing procedure as in the first embodiment, as shown in FIG.
As described above, the cover glass 8 was set on the rotary table 4 of the press molding machine, the cover glass 8 in the softened state was press-molded while being heated, and the upper surface was processed into a spherical R shape (dome shape with a curvature R = 200 mm).
【００２６】この手順でプレス成形加工をし、得られた
被せガラス８を約550℃でアニール熱処理を施した後、
図11に示すように着色ガラス１の上面球Ｒ部分を同一Ｒ
より大きいＲ=220mmで、破線部Ａ及びハッチング部Ｂを
研削し、さらに上下面を研摩加工し、上面球Ｒ形状の円
板状カバーガラスを作成した。さらにガラスをイオン交
換法により化学強化し、腕時計用風防窓として十分な破
壊強度を確保した。Press molding is carried out by this procedure, and the obtained cover glass 8 is annealed and heat treated at about 550 ° C.
As shown in FIG. 11, the R part on the upper surface of the colored glass 1 has the same radius.
With a larger R = 220 mm, the broken line portion A and the hatched portion B were ground, and the upper and lower surfaces were further ground to prepare a disk-shaped cover glass having a spherical upper surface R shape. In addition, the glass was chemically strengthened by the ion-exchange method to ensure sufficient breaking strength as a windshield for watches.
【００２７】完成したカバーガラスは、図12に示す側断
面及び上面図のように外観上従来の印刷ガラスとは一見
して異なり、ガラス窓中央部分が無色透明に近く、外周
になるにしたがい着色濃度が次第に濃くなる、透明感の
あるブルーのグラデーション調デザインのものであり、
腕時計用風防窓として時計枠に組み込んだ時、色の濃淡
が美しく透明感があり、文字板と表示部分に変化のある
独特の表示デザインが得られた。The finished cover glass differs from the conventional printed glass in appearance at first glance as shown in the side sectional view and the top view of FIG. 12, and the central portion of the glass window is almost colorless and transparent, and the outer periphery is colored according to the coloring. It is a blue gradation design with a transparent feeling that the density gradually increases,
When incorporated in a watch frame as a windshield for a wristwatch, the shade of colors was beautiful and transparent, and a unique display design with changes in the dial and display part was obtained.
【００２８】[0028]
【発明の効果】本発明はカバーガラスの加工材料に、ス
テンドガラス調の特有な透明感のある着色ガラスを使用
し、通常もちいられる一般的な透明ガラスと重ね合わせ
て熱融着させ、ガラスを一体化し、これを熱間プレス成
形法でガラス表面に凹凸を付け、着色ガラス側の凸部分
を研削除去した後、表面を透明ガラスと共に鏡面研摩す
ることにより、透明な無機カバーガラスの一部分にステ
ンドガラス調の着色模様を施すものである。INDUSTRIAL APPLICABILITY The present invention uses, as a processed material for a cover glass, a colored glass having a unique transparent feeling in a stained glass tone, and heat-bonds the glass by superposing it on a general transparent glass which is usually used. After unifying, the glass surface was made uneven by a hot press molding method, the convex part on the colored glass side was ground and removed, and then the surface was mirror-polished with transparent glass to stain a part of the transparent inorganic cover glass. A glass-like colored pattern is applied.
【００２９】これにより得られたカバーガラスは、外観
において従来の印刷ガラスとは一見して異なり、ガラス
窓中央部分が透明で、外周部が色のバラツキの無い均一
な透明感のあるステンドガラス調、カラフルな格子状の
ステンドガラス調、あるいは透明感のある着色のグラデ
ーション調デザインなど様々な装飾品カバーガラスが得
られ、白色等の文字板と組み合わせた時、腕時計の顔で
ある時計表示部分として色彩鮮やかな透明感と、奥行き
のあるガラス工芸品に相当する独特の表示デザインが得
られた。The cover glass thus obtained is different in appearance from conventional printed glass at first glance, and is transparent in the central portion of the glass window and has a uniform transparent appearance in the outer peripheral portion with no color variation. , Various lattice cover glass such as colorful latticed stained glass tone or transparent coloring gradation design can be obtained, and when combined with white dial etc., as a watch display part which is the face of the wrist watch The vivid transparency and the unique display design equivalent to glass crafts with depth were obtained.
【図１】本発明の腕時計用カバーガラスの側断面図及び
上面図。FIG. 1 is a side sectional view and a top view of a watch cover glass of the present invention.
【図２】本発明の腕時計用カバーガラスの製造工程を示
す概略の側断図。FIG. 2 is a schematic sectional side view showing a manufacturing process of a wristwatch cover glass of the present invention.
【図３】本発明の腕時計用カバーガラスの熱間プレス成
形工程を示す概略の側断図。FIG. 3 is a schematic side cross-sectional view showing a hot press-molding process of the watch cover glass of the present invention.
【図４】本発明の腕時計用カバーガラスの熱間プレス成
形工程を示す概略の側断図。FIG. 4 is a schematic cross-sectional view showing a hot press-molding process of the watch cover glass of the present invention.
【図５】本発明の腕時計用カバーガラスの製造工程を示
す概略の側断図。FIG. 5 is a schematic sectional side view showing a manufacturing process of the wristwatch cover glass of the present invention.
【図６】本発明の腕時計用カバーガラスの他の一例の製
造工程を示す概略の側断図。FIG. 6 is a schematic sectional side view showing a manufacturing process of another example of the wristwatch cover glass of the present invention.
【図７】本発明の腕時計用カバーガラスの熱間プレス成
形工程を示す概略の側断図。FIG. 7 is a schematic side cross-sectional view showing a hot press-molding step of the watch cover glass of the present invention.
【図８】本発明の腕時計用カバーガラスの熱間プレス成
形工程を示す概略の側断図。FIG. 8 is a schematic side cross-sectional view showing a hot press-molding step of the watch cover glass of the present invention.
【図９】本発明の腕時計用カバーガラスの側断面図及び
上面図。FIG. 9 is a side cross-sectional view and a top view of the wristwatch cover glass of the present invention.
【図10】本発明の腕時計用カバーガラスの熱間プレス成
形工程を示す概略の側断図。FIG. 10 is a schematic side cross-sectional view showing a hot press-molding step of the watch cover glass of the present invention.
【図11】本発明の腕時計用カバーガラスの他の一例の製
造工程を示す概略の側断図。FIG. 11 is a schematic side sectional view showing a manufacturing process of another example of the wristwatch cover glass of the present invention.
【図12】本発明の腕時計用カバーガラスの側断面図及び
上面図。FIG. 12 is a side sectional view and a top view of the wristwatch cover glass of the present invention.
１ 着色ガラス ２ 透明ガラス ３ 被せガラス ４ 回転テーブル ５ バーナー ６ プレス金型 ７ 被せガラス ８ 被せガラス 1 Colored glass 2 Transparent glass 3 Cover glass 4 Rotating table 5 Burner 6 Press mold 7 Cover glass 8 Cover glass
Claims (2)
バーガラスにおいて、無色透明な無機ガラスの一部分
に、ステンドガラス調の着色ガラスを融着させ、ガラス
表面に装飾模様を施したことを特徴とする腕時計用カバ
ーガラス。1. A windshield used for a wristwatch, a so-called cover glass, characterized in that a stained glass-like colored glass is fused to a part of a colorless transparent inorganic glass, and a decorative pattern is applied to the glass surface. Cover glass for watches.
バーガラスにおいて、成形加工材料に無色透明な無機ガ
ラス板と、一種または二種以上の着色ガラス板を融着し
て組み合わせ、これをガラス熱間プレスでガラス板表面
に凹凸形状を成形加工した後、着色ガラス側面凸部を研
削除去し、ベースとなる透明なガラス面と共に整厚した
上下面を鏡面研摩することを特徴とする請求項１記載の
腕時計用カバーガラスの製造方法。2. A windshield used for a wristwatch, that is, a so-called cover glass, wherein a colorless and transparent inorganic glass plate and one or more kinds of colored glass plates are fusion-bonded to each other as a molding material, and these are combined into a glass hot plate. The method of forming a concavo-convex shape on the surface of a glass plate with a press, grinding and removing the convex side surface of the colored glass, and mirror-polishing the upper and lower surfaces with the transparent glass surface serving as the base. Of manufacturing a cover glass for a wristwatch of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4790296A JPH09218277A (en) | 1996-02-10 | 1996-02-10 | Cover glass for wrist watch and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4790296A JPH09218277A (en) | 1996-02-10 | 1996-02-10 | Cover glass for wrist watch and its manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09218277A true JPH09218277A (en) | 1997-08-19 |
Family
ID=12788334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4790296A Withdrawn JPH09218277A (en) | 1996-02-10 | 1996-02-10 | Cover glass for wrist watch and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09218277A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102815859A (en) * | 2011-06-09 | 2012-12-12 | 旭硝子株式会社 | Tempered glass and manufacturing method thereof, measuring method for surface stress of tempered glass |
| JP2012254898A (en) * | 2011-06-09 | 2012-12-27 | Asahi Glass Co Ltd | Method for forming glass and integrated glass |
| CN102968045A (en) * | 2011-08-29 | 2013-03-13 | 精工爱普生株式会社 | Cover glass and timepiece |
| KR20180093202A (en) * | 2017-02-10 | 2018-08-21 | 삼성디스플레이 주식회사 | Electronic device |
| CN111943486A (en) * | 2019-05-16 | 2020-11-17 | 德萨尔实践股份公司 | Method for manufacturing a watch case glass and tool for such a method |
-
1996
- 1996-02-10 JP JP4790296A patent/JPH09218277A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102815859A (en) * | 2011-06-09 | 2012-12-12 | 旭硝子株式会社 | Tempered glass and manufacturing method thereof, measuring method for surface stress of tempered glass |
| JP2012254898A (en) * | 2011-06-09 | 2012-12-27 | Asahi Glass Co Ltd | Method for forming glass and integrated glass |
| JP2012254902A (en) * | 2011-06-09 | 2012-12-27 | Asahi Glass Co Ltd | Tempered glass and manufacturing method therefor, and surface stress measuring method for the tempered glass |
| CN102968045A (en) * | 2011-08-29 | 2013-03-13 | 精工爱普生株式会社 | Cover glass and timepiece |
| KR20180093202A (en) * | 2017-02-10 | 2018-08-21 | 삼성디스플레이 주식회사 | Electronic device |
| CN111943486A (en) * | 2019-05-16 | 2020-11-17 | 德萨尔实践股份公司 | Method for manufacturing a watch case glass and tool for such a method |
| CN111943486B (en) * | 2019-05-16 | 2024-04-26 | 德萨尔实践股份公司 | Method for manufacturing a watch case glass and tool for such a method |
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