JPH0710573A - Bending molding for glass plate - Google Patents

Bending molding for glass plate

Info

Publication number
JPH0710573A
JPH0710573A JP15747393A JP15747393A JPH0710573A JP H0710573 A JPH0710573 A JP H0710573A JP 15747393 A JP15747393 A JP 15747393A JP 15747393 A JP15747393 A JP 15747393A JP H0710573 A JPH0710573 A JP H0710573A
Authority
JP
Japan
Prior art keywords
glass plate
bending
glass
shielding member
wing
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
Application number
JP15747393A
Other languages
Japanese (ja)
Inventor
Masami Nishitani
正巳 西谷
Yoichi Suzuki
洋一 鈴木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Central Glass Co Ltd
Original Assignee
Central Glass Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Central Glass Co Ltd filed Critical Central Glass Co Ltd
Priority to JP15747393A priority Critical patent/JPH0710573A/en
Publication of JPH0710573A publication Critical patent/JPH0710573A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/02—Re-forming glass sheets
    • C03B23/023—Re-forming glass sheets by bending
    • C03B23/025—Re-forming glass sheets by bending by gravity
    • C03B23/027—Re-forming glass sheets by bending by gravity with moulds having at least two upward pivotable mould sections

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)

Abstract

PURPOSE:To obtain curved glass having exceedingly smooth and accurate curvature while suppressing the heating quantity in a partial region where doubling (optical distortion in deformation of the curved surface by variation in curvature, etc.) is liable to arise by freely arranging opening and shielding of a shielding member at the time of curving a glass planar body to various kinds of the curved glass by a gravity bending system. CONSTITUTION:Fig. shows a side view indicating the state when the glass planar body 2 is subjected to a bending treatment. A movable vane part 4 thrusts up and acts to turn and pull down an arm 17 in a turning shaft part 18 by a bracket 1 around a shaft part 16 as a fulcrum where the movable vane part 4 and base part 3 jointly press the smoothly curved surface to the glass planar plate 2. A supporting bar 21 moves a long hole 26 downward and turns and pulls down the shielding member 23 to a horizontal position around a turning shaft part 20 as a fulcrum. The partial area of the movable vane part 4 of the bending mold is thereby shielded against heating. The glass planar body is passed through a preheating chamber and molding chamber of a heating furnace by using the bending mold, is ejected out of the heating furnace and is annealed, by which the bent glass plate is obtd.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、少なくとも滑らかな曲
率半径で成る各種曲面ガラスを得ることができ、ことに
車輌用窓ガラスに有用な、自重曲げ方式によるガラス板
の曲げ型に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bending die for a glass plate by a self-weight bending method, which is capable of obtaining various kinds of curved glass having at least a smooth radius of curvature and is particularly useful for vehicle window glass.

【０００２】[0002]

【従来の技術】従来、例えば深曲げやＳ字状曲げ等複合
複雑屈曲を有するガラス板状体では比較的小さな曲率半
径ならびに比較的大きな曲率半径との組み合わせの曲が
りを必要とし、局部加熱等を備える熱分布パターンが熱
源として設けられるとともに、反射部材、熱吸収部材あ
るいは熱遮蔽部材等を備える曲げ型等も適宜用いられる
ことが提案されている。2. Description of the Related Art Conventionally, for example, a glass plate having a complex complicated bend such as deep bend or S-shaped bend requires a bend with a relatively small radius of curvature and a relatively large radius of curvature, and local heating or the like is required. It has been proposed that the heat distribution pattern provided is provided as a heat source, and that a bending die provided with a reflecting member, a heat absorbing member, a heat shielding member, or the like is also appropriately used.

【０００３】例えば、特開昭62ー265138号公報には、ガ
ラス板を付形する型および方法が記載されており、ガラ
ス板の外周のやや内側寄りに付形されるガラス板の所望
の形状に正面と外形とが合致する支持面を備える付形レ
ールを有する支持フレーム上に付形されるガラス板を位
置決めする段階と、前記ガラス板がたわんで前記付形レ
ールに接触するように前記ガラス板をその変形温度まで
加熱する段階と、前記遮蔽部材が前記熱源から熱を吸収
して前記遮蔽部材の遮蔽有効性を低減させるように前記
熱を再放射する前記の選択された部分の熱変形温度に前
記の選択された部分が到達するのを遅らせるために前記
の選択された部分と前記熱源との間に前記遮蔽部材を置
いて前記ガラス板の選択された部分を熱源から遮蔽する
段階とを包含する、たわみ曲げによりガラス板を付形す
る方法において、前記遮蔽部材の選択されたものと前記
の選択された部分とから間隔をあけ且つそれらの間に位
置して前記の選択された部分を遮蔽する付加的な遮蔽材
を備える段階を含むことが開示されている。For example, Japanese Unexamined Patent Publication (Kokai) No. 62-265138 describes a mold and method for shaping a glass plate, and a desired shape of the glass plate shaped slightly toward the inner periphery of the glass plate. Locating a shaped glass plate on a support frame having a shaped rail with a support surface whose front and outer contours coincide with each other; and the glass so that the glass plate flexes and contacts the shaped rail. Heating the plate to its deformation temperature and thermal deformation of the selected portion where the shielding member re-radiates the heat so as to absorb heat from the heat source and reduce the shielding effectiveness of the shielding member. Shielding the selected portion of the glass sheet from the heat source by placing the shielding member between the selected portion and the heat source to delay reaching the temperature of the selected portion. Includes, In a method of shaping a glass sheet by flexural bending, spaced from and positioned between a selected one of the shielding members and the selected portion to shield the selected portion. It is disclosed to include the step of providing additional shielding.

【０００４】[0004]

【発明が解決しようとする問題点】前述したように、例
えば特開昭62ー265138号公報に記載のガラス板を付形す
る型および方法では、高温のガラス板を複雑な形状に形
成する軽量曲げ鉄製遮蔽材、ことに例えば単に厚さ1.58
7mm の軽量耐熱板で構成される遮蔽材を用いることで
は、曲率半径が例えば 900〜1300Ｒ程度の比較的滑らか
な半円弧状ガラス板状体において、ダブリ現象（例え
ば、曲率のバラツキによる曲面変形での光学歪み等）の
発現をかなり良化したとしても充分解消することができ
難く、到底所期の比較的滑らかな曲率半径を有する半円
弧状ガラス板状体を常に得ることができるとは必ずしも
ならないものである。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention As described above, for example, in the mold and method for shaping a glass plate described in Japanese Patent Laid-Open No. 62-265138, a lightweight glass plate having a complicated shape is formed. Bending iron shield, especially for example just 1.58 thick
By using a shielding material composed of a 7 mm lightweight heat-resistant plate, in a relatively smooth semi-circular glass plate with a radius of curvature of, for example, 900 to 1300 R, a double phenomenon (for example, curved surface deformation due to variation in curvature causes Optical distortion, etc.) cannot be sufficiently eliminated even if it is considerably improved, and it is not always possible to always obtain a semi-circular glass plate having a relatively smooth radius of curvature. It does not happen.

【０００５】さらに場合によっては例えば半円弧状にガ
ラス板状体を屈曲成形後、冷却する際に、ことに例えば
冷却速度を多少加速するような際に冷却気流あるいは空
気のバランスが悪く不均一冷却状態を生じ、各種のクラ
ック等割れ現象を発現し易くなって生産性あるいは作業
性、熱効率等が悪化することとなり、さらにまた例えば
生曲げの場合においては、ことに生産サイクル（タクト
ともいう）が長くなって生産性の低下をもたらすもので
ある。Further, in some cases, for example, when the glass plate is bent and formed into a semi-circular shape and then cooled, particularly when the cooling speed is accelerated to some extent, the cooling airflow or the air is imbalanced and uneven cooling is performed. Occurs, and various cracking phenomena such as cracks are likely to occur, resulting in deterioration of productivity, workability, thermal efficiency, etc. Furthermore, in the case of, for example, raw bending, the production cycle (also referred to as tact) is It becomes longer and lowers productivity.

【０００６】[0006]

【問題点を解決するための手段】本発明は、従来のかか
る問題点に鑑みてなしたものであって、自重曲げ方式で
ガラス板状体を少なくとも滑らかな曲率半径する各種曲
面ガラスに屈曲するに際し、遮蔽部材を適宜必要な所定
箇所に調整自在に設けることで、所期の曲率の滑らかな
曲面を得ることにより、解消し難いダブリ等の欠陥、あ
るいはガラス板状体の破損等のトラブルを発現しないよ
うにすることができ、滑らかな高精度の曲率半径ならび
に高品位の曲面ガラスを得ることができ、該曲面ガラス
はことに車輌用窓ガラスとして有用なガラス板の曲げ型
を提供するものである。SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and bends a glass plate into various curved glasses having a smooth radius of curvature by a self-weight bending method. In that case, by providing a shielding member in an appropriately adjustable predetermined position to obtain a smooth curved surface having a desired curvature, it is possible to solve problems such as defects such as debris that are difficult to eliminate or damage to the glass plate-like body. It is possible to obtain a curved glass having a high-precision curved radius that is smooth and has high precision, which can be prevented from appearing, and the curved glass provides a bending die of a glass plate that is particularly useful as a window glass for vehicles. Is.

【０００７】すなわち、本発明は、支持枠体上に載置し
た、基体部と翼部とから少なくともなる自重曲げ方式に
よるガラス板の曲げ型において、該翼部域ならびに該翼
部から該基体部にかけての域で、前記ガラス板状体の載
置後あるいは前記ガラス板の成型につれて該遮蔽部材が
該翼部より開放された位置から遮蔽回動するようにし、
曲げ型に載置したガラス板より離隔し加熱部との空間に
遮蔽部材を配置し、曲げガラス板を曲げ型より持ち上げ
離れると同時に該遮蔽部材が開放位置に戻ることの繰り
返しをするようにして成ることを特徴とするガラス板の
曲げ型。That is, the present invention relates to a bending die for a glass plate, which is placed on a support frame and comprises at least a base portion and a wing portion by a self-weight bending method, in the wing portion region and the wing portion to the base portion. In the region up to, after the mounting of the glass plate-like body or as the glass plate is molded, the shielding member is shielded and rotated from the position opened from the wing portion,
A shielding member is arranged in a space apart from the glass plate placed on the bending mold and in a space with the heating unit, and the shielding member is repeatedly returned to the open position while lifting the bending glass plate from the bending mold. Bending die of glass plate characterized by being made.

【０００８】ならびに、前記自重曲げ方式が、基体部と
夫々外側端が上方向に回動する左右の可動の翼部とから
少なくともなる蝶番式屈曲型のガラス板の曲げ型であっ
て、該可動の翼部域ならびに該可動の翼部から前記基体
部にかけての域で、前記可動の翼部の上方向の回動につ
れて該遮蔽部材が該可動の翼部より開放された位置から
遮蔽回動するようにし、曲げ型に載置したガラス板より
離隔し加熱部との空間に遮蔽部材を配置し、曲げガラス
板を曲げ型より持ち上げ離れると同時に該遮蔽部材が開
放位置に戻ることの繰り返しをするようにして成ること
を特徴とする上述したガラス板の曲げ型。Further, the self-weight bending method is a hinge type bending type glass plate bending type having at least a base portion and left and right movable blade portions whose outer ends rotate upward, respectively. In the wing area and the area from the movable wing to the base body, the shielding member shields and rotates from the position opened from the movable wing as the movable wing moves upward. In this way, the shielding member is arranged in the space apart from the glass plate placed on the bending mold and the heating portion, and the shielding member is repeatedly returned to the open position while lifting the bending glass plate from the bending mold. A bending die for a glass plate as described above, characterized in that it is formed as described above.

【０００９】さらに、前記遮蔽部材が、少なくとも前記
左右の翼部の回りを自在に移動でき、決めえた位置で固
定できるようにしたことを特徴とする上述したガラス板
の曲げ型をそれぞれ提供するものである。Further, each of the above-mentioned glass plate bending dies is characterized in that the shielding member is freely movable around at least the left and right wings and can be fixed at a predetermined position. Is.

【００１０】ここで、前記したように、前記翼部域なら
びに該翼部から該基体部にかけての域で、曲げ型に載置
したガラス板より離隔し加熱部との空間に遮蔽部材を配
置することとしたのは、各種多様なガラス板状体を曲げ
処理加工する際に、該域において、ことに前記ダブリ現
象が発現し易く、これを解消するようにするためには、
ステンレス板等の金属板、あるいは金属板の上に断熱材
を一体化したもの等が好ましい遮蔽部材を、当該遮蔽部
材の大きさと形状、断熱材の厚さならびに曲げ型上に載
置したガラス板との距離、例えば約100mm 前後が好まし
い距離等の調整で、さらに断熱材をガラス面と反対側に
一体的に取り付けることで、とくに遮蔽効果を発揮する
こととなるからである。Here, as described above, the shielding member is arranged in the space with the heating portion, which is separated from the glass plate placed on the bending die in the blade region and the region from the blade portion to the base portion. It was decided that, when bending various kinds of glass plate-like bodies, particularly in the region, the above-mentioned dubbing phenomenon is likely to occur, and in order to eliminate this,
A glass plate on which a metal plate such as a stainless plate, or a shield member in which a heat insulating material is integrated on the metal plate is preferably mounted on the size and shape of the shield member, the thickness of the heat insulating material, and the bending die. This is because the shielding effect will be particularly exerted by adjusting the distance, such as a distance of about 100 mm is preferable, and by additionally attaching the heat insulating material integrally to the side opposite to the glass surface.

【００１１】また、前記ガラス板状体の載置後あるいは
前記ガラス板の成型につれて該遮蔽部材が該翼部より開
放された位置から遮蔽回動するようにし、曲げガラス板
を曲げ型より持ち上げ離れると同時に該遮蔽部材が開放
位置に戻ることの繰り返しをするようにして成ることと
したのは、とくに多種多様なガラス板状体の載置あるい
は持ち上げ取出の作業に支障を来さないためであり、自
動ローデングとアンローデングへの対応が可能とするこ
とができるからである。さらにガラス板を載置と持ち上
げで離隔し、あるいは曲がり具合に合わせるようにして
支持枠体に開放遮蔽することできるようにしたので、よ
りその機能を充分に発揮できるものとなるものである。Further, after the glass plate is placed or as the glass plate is molded, the shield member is shielded and rotated from the position opened from the wing portion, and the bent glass plate is lifted up from the bending die. At the same time, the reason why the shielding member is repeatedly returned to the open position is that it does not hinder the work of placing or lifting and taking out various kinds of glass plate-like bodies. This is because it is possible to support automatic loading and unloading. Further, since the glass plate can be placed and lifted apart from each other, or the glass plate can be opened and shielded by the bending so as to match the bending condition, the function can be more fully exhibited.

【００１２】さらに、蝶番式屈曲型では、前記可動の翼
部の上方向の回動につれて該遮蔽部材が該可動の翼部よ
り開放された位置から遮蔽回動するようにし、曲げガラ
ス板を曲げ型より持ち上げ離れると同時に該遮蔽部材が
開放位置に戻ることの繰り返しをするようにして成るこ
ととしたので、より機動性をもってその機能を発揮する
ものとすることができるものである。Further, in the hinged bending type, as the movable wing portion is rotated upward, the shielding member is shielded and rotated from a position opened from the movable wing portion to bend the bent glass plate. Since the shielding member is repeatedly returned to the open position at the same time as being lifted away from the mold, the function can be exerted with greater mobility.

【００１３】さらにまた、前記遮蔽部材が、少なくとも
前記左右の翼部の回りを自在に移動でき、決めえた位置
で固定できるようにしたことにより、ガラス板の大き
さ、曲げ成形形状等による選択する効果的所定域の幅が
拡がり、ダブリ現象の解消に格段の効果をもたらすこと
となるものである。Furthermore, since the shielding member can be freely moved around at least the left and right wings, and can be fixed at a predetermined position, selection can be made according to the size of the glass plate, the bending shape and the like. The width of the effective predetermined area is expanded, and the effect of resolving the double phenomenon is remarkably brought about.

【００１４】なお、前記翼部の下部に断熱ボードを取り
付け、該断熱ボードの大きさ、形状あるいは厚み、ガラ
ス板との距離等を変えることで、該翼部の温度をコント
ロールするようにし、本発明のガラス板の曲げ型におい
て補助的に用いてもよく、熱効率の向上にも寄与できる
ものである。A heat insulating board is attached to the lower part of the blade, and the temperature of the blade is controlled by changing the size, shape or thickness of the heat insulating board and the distance from the glass plate. It may be used supplementarily in the bending mold of the glass plate of the invention, and can contribute to the improvement of thermal efficiency.

【００１５】さらにまた、ガラス板の曲げ型曲率半径が
150 〜1300Ｒである曲面を少なくとも有して成るガラス
板状体である曲面ガラスに採用でき、例えば各種車輌用
あるいは建築用各種ウインドウガラス等として、ダブリ
等の欠陥を解消した滑らかな所期の曲率を有する曲面で
優れた品質で対人あるいは環境に優しい、意匠上からも
優れたものとすることができる。Furthermore, the bending radius of curvature of the glass plate is
It can be used for curved glass that is a glass plate having at least a curved surface of 150 to 1300 R, and has a smooth desired curvature that eliminates defects such as debris, for example, as window glass for various vehicles or construction. It is possible to obtain a curved surface having a superior quality, being excellent in human-friendliness and environment-friendly, and excellent in terms of design.

【００１６】また、前記ガラス板状体の厚みが 0.7〜８
mmであって、ことに合せガラスあるいは単板の生曲げガ
ラス等であり、厚みが 0.7mm未満では、所期の曲面ガラ
スを得難いだけでなく、比較的大面積でかつ例えば合せ
ガラス等にしたとしても、次第にコスト的な問題が生じ
るようになり、８mmを超えると次第に自重曲げ方式では
所要時間が掛かり過ぎコスト上好ましいものとはならな
い。好ましい板厚としては約１〜６mm程度、より好まし
くは約1.5 〜５mm程度である。The glass plate has a thickness of 0.7 to 8
mm, especially laminated glass or single-panel raw bending glass, etc. If the thickness is less than 0.7 mm, not only is it difficult to obtain the desired curved glass, but also relatively large area and laminated glass, for example. However, the cost problem gradually arises, and if it exceeds 8 mm, the self-weight bending method gradually takes too much time and is not preferable in terms of cost. The preferable plate thickness is about 1 to 6 mm, more preferably about 1.5 to 5 mm.

【００１７】また、前記ガラス板すなわちガラス板状体
としては、無機質の透明ガラス板が好ましいものであっ
て、無色または着色、ならびにその種類あるいは色調、
形状等に特に限定されるものではなく、さらに曲げ板ガ
ラスとしてはもちろん、単板で使用できるとともに、複
層ガラスあるいは合せガラスとしても、場合によっては
各種強化ガラスや強度アップガラス等に使用できること
は言うまでもない。Further, as the glass plate, that is, the glass plate-like body, an inorganic transparent glass plate is preferable, and it is colorless or colored, and its kind or color tone,
It is needless to say that it is not particularly limited to the shape and the like, and it can be used not only as a bent plate glass but also as a single plate, and as a multi-layered glass or a laminated glass, depending on the case, various tempered glass or strength-up glass. Yes.

【００１８】[0018]

【作用】以上前述したように、本発明のガラスの曲げ型
によれば、自重曲げ方式において、曲げ型の翼部または
翼部から基体部にかけての域に、ガラス板の載置後ある
いはガラス板の成型につれて遮蔽部材が翼部より開放さ
れた位置から遮蔽回動するようにし、曲げ型に載置した
ガラス板より離隔し加熱部との空間に遮蔽部材を配置
し、曲げガラス板を曲げ型より持ち上げ離れると同時に
遮蔽部材が開放位置に戻ることの繰り返しをするように
して成る、開放と遮蔽を自在に繰り返し配備すること
で、従来の加熱成型炉でもって、ダブリ現象の発現し易
い部分的領域の加熱量を選択的に制御抑制し、格段に滑
らかで精度よい曲率を有する、所望の曲げ形状の曲面ガ
ラスとなり、しかも自動的開放遮蔽の開閉機構との併設
により、自動ローデイング、アンローデングにも対応で
き、工程上でのガラス板状体の破損等のトラブルもなく
安定して作業効率よく、しかも熱効率の向上にも繋げ、
かつ再現性よく得ることができ、各種車輌用窓ガラスを
はじめ、建築用窓ガラス、鉄道用窓ガラス、産業用ガラ
ス等高品位のウインドウガラス、各種ガラス物品等に広
く有用なガラスの曲げ型を提供するものである。As described above, according to the bending mold for glass of the present invention, in the self-weight bending method, the glass plate is placed on the bending blade or in the region from the blade to the base portion after the glass plate is placed or on the glass plate. As the molding is performed, the shielding member is rotated and shielded from the position opened from the wing, and the shielding member is placed in the space with the heating unit, separated from the glass plate placed on the bending mold, and the bending glass plate is bent. The shielding member is repeatedly returned to the open position at the same time as it is lifted up and separated.By freely repeatedly opening and shielding, the conventional heating and molding furnace can easily cause the double phenomenon. By controlling and controlling the heating amount of the area selectively, it becomes a curved glass with a desired bending shape that has a remarkably smooth and accurate curvature. Grayed, it can respond to Anrodengu, high working efficiency and stable without any trouble such as breakage of the glass plate-like member on the step, moreover also lead to the improvement of thermal efficiency,
In addition, it is possible to obtain a reproducible glass bending mold that can be obtained with high reproducibility and is widely used for various vehicle window glasses, architectural window glass, railway window glass, high-quality window glass such as industrial glass, and various glass articles. It is provided.

【００１９】[0019]

【実施例】以下、本発明の実施例を添付の図面に基づき
説明する。ただし本発明は係る実施例に限定されるもの
ではない。Embodiments of the present invention will be described below with reference to the accompanying drawings. However, the present invention is not limited to the embodiment.

【００２０】図１は本発明の１実施例に係る一部を省略
し部分拡大した要部斜視図を示し、図２は図１で示した
本発明のガラスの曲げ型上にガラス板状体を載置した際
の状態を示す側面図であり、図３は図２の状態から曲げ
処理した際の状態を示す側面図である。FIG. 1 is a partially enlarged perspective view of a part of a glass plate according to an embodiment of the present invention with a part omitted, and FIG. 2 is a glass plate member on the glass bending die of the present invention shown in FIG. FIG. 3 is a side view showing a state when the is mounted, and FIG. 3 is a side view showing a state when the bending process is performed from the state of FIG. 2.

【００２１】図１は本発明の１実施例に係るガラス板の
曲げ型において切欠き一部を省略し部分拡大した要部を
示す斜視図であって、ガラス板の曲げ型１は、ガラス板
状体２の中央部分の領域を支持し曲げ処理加工を受け持
つ基体部３と、該基体部の左右両側に各々揺動自在に連
結し、ガラス板状体２の両側部分の領域を支持し曲げ処
理加工を受け持つ可動の翼部４とから構成され、各部材
は支持枠体11上に載置されている。FIG. 1 is a perspective view showing an essential part of a bending die for a glass plate according to an embodiment of the present invention, in which a notch is partially omitted and a glass plate bending die 1 is a glass plate. A base portion 3 that supports the region of the central portion of the sheet 2 and is responsible for bending processing, and is swingably connected to the left and right sides of the substrate portion, and supports and bends the regions of both sides of the glass plate 2. It is composed of a movable wing portion 4 which is in charge of processing, and each member is mounted on the support frame 11.

【００２２】基体部３は、冷却時におけるガラスと金属
との熱バランスと、型の軽量化を図った孔部５を配設す
る帯状板から成り、該基体部と連結する可動の翼部４
は、コ字状に屈曲した帯板に孔部５、または上部に歯形
状の支持部６を配設するもので、該可動の翼部４を揺動
させるための杆体７は、基体部３に回転軸８で回動自在
に軸支し、杆体７の先端部には重錘９が所定の位置に固
定できるよう摺動自在に設けられており、降下する重錘
９が基体部３に固着する支持部材（図示していない）に
当接し杆体７の回動を停止する。また杆体７の一方の後
端部は可動の翼部４に固着する固定ピン10と一体に固着
し連結されている。The base portion 3 is composed of a strip-shaped plate provided with a hole 5 for reducing the heat balance between the glass and the metal during cooling and for reducing the weight of the mold. The movable blade portion 4 is connected to the base portion.
Is to dispose a hole portion 5 in a U-shaped bent strip plate or a tooth-shaped support portion 6 in an upper portion thereof, and a rod 7 for swinging the movable wing portion 4 is a base portion 3 Is rotatably supported by a rotary shaft 8, and a weight 9 is slidably provided at the tip of the rod 7 so that the weight 9 can be fixed at a predetermined position. The rotation of the rod 7 is stopped by coming into contact with a fixed support member (not shown). Further, one rear end of the rod 7 is integrally fixed and connected to a fixed pin 10 fixed to the movable wing 4.

【００２３】可動の翼部４側の前記支持枠体11に溝部12
を設け、該溝部に長孔24付き一対の支柱13を立設し決め
えた位置に止部26で固定し、一方可動の翼部４の側辺部
で支持部６を固着する帯板の下縁に嵌着した脱着自在で
スライド可能かつ回動自在な連結部14より曲げ型１の長
手方向に長孔25付きブラケット15を突設し、前記支柱13
の軸部16で該長孔25と自在に遊結し、該ブラケットの先
端には回転軸部18で回動自在に軸着する長孔26付きアー
ム17を設け、前記支柱13の長孔25と該長孔26とを移動軸
部19で移動自在に遊結し、該アーム17の先端を前記支柱
13と回転軸部20で回動自在に軸支した支持バー21に連結
部22にて回動可能に軸着し、該支持バー21の先端には遮
蔽部材23を固着して成る。A groove 12 is formed in the support frame 11 on the movable wing 4 side.
A pair of columns 13 with long holes 24 are erected in the groove and fixed at fixed positions with stoppers 26, while one side of movable wing 4 secures support 6 below the strip. A bracket 15 with a long hole 25 is projected in the longitudinal direction of the bending die 1 from a detachable, slidable, and rotatable connecting portion 14 fitted to the edge, and the above-mentioned strut 13
An arm 17 with a long hole 26 rotatably attached to a rotary shaft 18 is provided at the tip of the bracket so as to be freely loosely connected to the long hole 25 of the shaft 13. And the elongated hole 26 are movably connected by a moving shaft portion 19, and the tip of the arm 17 is connected to the support column.
A support bar 21 rotatably supported by a rotary shaft portion 20 and a rotary shaft portion 20 is rotatably supported by a connecting portion 22, and a shielding member 23 is fixed to the tip of the support bar 21.

【００２４】前記可動の翼部４の上方向と水平状位置へ
の回動につれて、前記支柱13で支えるなかでブラケット
15、アーム17および支持バー21を連動するようにし、前
記可動の翼部４域ならびに該可動の翼部から前記基体部
３にかけての域で、しかも前記曲げ型１に載置したガラ
ス板状体２より離隔し加熱部との空間に、該支持バーの
先端にある遮蔽部材23を開放と遮蔽の状態を繰り返す遮
蔽回動をすることができる。さらに支持枠体11に溝部12
を設けスライドできるようにし前記支柱13を止部27で固
定して立設し、かつ可動の翼部４帯板の下縁に嵌着した
脱着自在でスライド可能かつ回動自在な連結部14により
ブラケット15としたことで、前記遮蔽部材23を可動の翼
部４の回りを自在に移動できて決めえた所定の位置で固
定することができる。As the movable wing portion 4 is rotated upward and horizontally, the bracket is supported by the pillar 13.
15, the arm 17 and the support bar 21 are interlocked with each other, and the glass plate-shaped body placed on the bending die 1 in the movable wing portion 4 area and the area from the movable wing portion to the base body portion 3 It is possible to rotate the shield member 23 at the tip of the support bar in a space apart from the heating unit 2 apart from the shield member 2 by repeatedly opening and closing the shield member. Further, the groove 12 is formed on the support frame 11.
By means of a detachable, slidable and rotatable connecting portion 14 fitted to the lower edge of the movable wing portion 4 strip, and the pillar 13 is fixed and erected by a stopper 27 so as to be slidable. By using the bracket 15, the shielding member 23 can be freely moved around the movable wing portion 4 and can be fixed at a predetermined position.

【００２５】なお、支持バーと遮蔽部材とは脱着可能で
かつ取り付け位置も適宜調整できるようになっており、
場合によっては支持バーの突出させ具合を調整するよう
にすることができることは言うまでもない。The support bar and the shielding member are detachable and the mounting position can be adjusted appropriately.
It goes without saying that the protruding degree of the support bar can be adjusted depending on the case.

【００２６】図２は図１で示した本発明のガラスの曲げ
型上にガラス板状体を載置した際の状態を示す側面図で
あって、ガラス板状体２が遮蔽部材23に充分触れること
のないように開放回動し、加熱炉に挿入する前に所定の
寸法形状に切断加工したガラス板状体２を曲げ型１の上
に位置決めし載置した際の各部材の状態を示す図であ
る。可動の翼部４帯板が水平状位置にあって軸部16を支
点としてブラケット15でアーム17を回転軸部18で回動し
押し上げるよう働き、つれて支持バー21も回転軸部20を
支点として回動し押し上げて遮蔽部材23が充分曲げ型の
可動の翼部４と離れ開放される。FIG. 2 is a side view showing a state in which the glass plate-like body is placed on the glass bending mold of the present invention shown in FIG. 1, and the glass plate-like body 2 is sufficient for the shielding member 23. The state of each member when the glass plate-like body 2 cut and processed into a predetermined size before being inserted into the heating furnace is positioned and placed on the bending die 1 before being rotated without touching, is shown. FIG. The movable wing 4 strip is in a horizontal position, and the bracket 15 is used as a fulcrum to rotate and push up the arm 17 with the rotary shaft 18 so that the support bar 21 also supports the rotary shaft 20 as a fulcrum. As a result, the shield member 23 is rotated and pushed up so that the shield member 23 is sufficiently separated from the movable wing portion 4 of the bending type and opened.

【００２７】図３は図２の状態から曲げ処理した際の状
態を示す側面図であって、可動の翼部４が基体部３と面
することで滑らかな曲面をガラス板状体に付与したとこ
ろで、可動の翼部４帯板が押し上がり軸部16を支点とし
てブラケット15でアーム17を回転軸部18で回動し引き下
げるよう働き、つれて支持バー21も長孔26を下に移動す
るとともに回転軸部20を支点として回動し引き下げて遮
蔽部材23を水平状位置にし、遮蔽部材23が充分曲げ型の
可動の翼部４の部分域を加熱から遮蔽する。FIG. 3 is a side view showing a state when the bending process is performed from the state of FIG. 2, and the movable wing portion 4 faces the base portion 3 to give a smooth curved surface to the glass plate. By the way, the movable wing 4 strip pushes up and the arm 15 is rotated by the bracket 15 around the shaft 16 as a fulcrum to be rotated and pulled down, so that the support bar 21 is also moved down the long hole 26. At the same time, the rotary shaft portion 20 is pivoted and pulled down to bring the shield member 23 to a horizontal position, and the shield member 23 shields a partial region of the movable wing portion 4 of sufficient bending type from heating.

【００２８】上述したような本発明のガラス板の曲げ型
を用い、大きさ約1500mmｘ1000mmで厚み約２mmの所定形
状に切断加工した合せガラス用ガラス板状体を載置し、
大きさ約150mｘ150mm で厚み約５mmのステンレス製遮蔽
部材を、遮蔽時にガラス板状体と遮蔽部材との間隔を約
100mm 程度離れるようにセットし、加熱炉の予備加熱室
でもって例えば約500 〜600 ℃程度まで予備加熱をし、
次いで成形室に進み、遮蔽部材で部分域を例えば20〜30
℃低く抑えることができて、ドロツプバーナー等でもっ
て例えば全体的に約600〜650 ℃程度で約５〜15分程度
曲げ処理加工をし、さらに加工後進めて加熱炉から搬出
し、約300 〜450 ℃雰囲気温度中約５〜10分程度で徐冷
による冷却をし生の曲げガラス板を得た。Using the glass plate bending mold of the present invention as described above, a glass plate for laminated glass, which is cut into a predetermined shape having a size of about 1500 mm × 1000 mm and a thickness of about 2 mm, is placed,
Approximately 150m x 150mm and a thickness of approximately 5mm made of stainless steel shielding member, the distance between the glass plate and the shielding member when shielding
Set them so that they are about 100 mm apart, and preheat them to about 500 to 600 ° C in the preheating chamber of the heating furnace.
Next, proceed to the molding chamber and cover the partial area with, for example, 20 to 30 with a shielding member.
The temperature can be kept low, and a bending burner or the like can be used to perform bending treatment at about 600 to 650 ° C for about 5 to 15 minutes as a whole. A bent glass plate was obtained by performing slow cooling for about 5 to 10 minutes in an ambient temperature of ° C.

【００２９】上述したようにしたことにより、ガラス板
状体の割れ発現等のトラブルもなく安定し順調な作業が
でき、サイクルも短縮できて改善され、ダブリ現象等の
欠陥も１／３以下の値、例えば約10〜15mm程度であった
ものが約１〜５mm程度となってほぼ発現することを抑制
できて解消し、滑らかな曲率半径約1300〜150 Ｒ程度で
より高精度の曲率をもつ曲面となり、優れた曲げガラス
板状体である曲面ガラスとなって、高効率で再現性よく
高品位となり、所期の成果を達成し得た。As described above, stable and smooth work can be performed without troubles such as occurrence of cracks in the glass plate, the cycle can be shortened and improved, and defects such as the double phenomenon can be reduced to 1/3 or less. A value, for example, from about 10 to 15 mm can be suppressed to about 1 to 5 mm, and it can be suppressed to be almost eliminated, and a smooth curvature radius of about 1300 to 150 R has more accurate curvature. It became a curved surface and became a curved glass that was an excellent bent glass plate, and it was highly efficient, reproducible, and high-quality, and the desired result was achieved.

【００３０】[0030]

【発明の効果】以上前述したように、本発明によれば、
自重曲げ方式において、曲げ型の翼部または翼部から基
体部にかけての域に、ガラス板と隔離し加熱部との空間
に、開放と遮蔽を自在に配備することで、ダブリ現象の
発現し易い部分的領域の加熱量を抑制し、格段に滑らか
で精度よい曲率を有する、所望の曲げ形状の曲面ガラス
となり、しかも自動的開放遮蔽の開閉機構との併設によ
り、自動ローデイング、アンローデングにも対応でき、
工程上でのガラス板状体の破損等のトラブルもなく安定
して作業効率よく、かつ再現性よく得ることができ、各
種車輌用窓ガラスをはじめ、建築用等高品位のウインド
ウガラス、各種ガラス物品等に広く有用なガラスの曲げ
型を提供するものである。As described above, according to the present invention,
In the self-weight bending method, the open and shield can be freely arranged in the space between the glass plate and the heating part in the area of the bending type wing part or from the wing part to the base part to easily cause the double phenomenon. A curved glass with a desired bending shape that suppresses the heating amount in a partial area and has a significantly smooth and accurate curvature, and by being combined with an opening / closing mechanism with an automatic opening shield, it can also support automatic loading and unloading. ,
It is possible to obtain stable and efficient workability and reproducibility without troubles such as breakage of glass plate in the process, including window glass for various vehicles, high-quality window glass for construction, and various glasses. The present invention provides a bending mold for glass that is widely useful for articles and the like.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の１実施例に係る一部を省略し部分拡大
した要部斜視図である。FIG. 1 is a partial enlarged perspective view of a first embodiment of the present invention with a part omitted.

【図２】図１で示した本発明のガラスの曲げ型上にガラ
ス板状体を載置した際の状態を示す側面図である。FIG. 2 is a side view showing a state in which a glass plate is placed on the glass bending die of the present invention shown in FIG.

【図３】図２の状態から曲げ処理した際の状態を示す側
面図である。FIG. 3 is a side view showing a state when a bending process is performed from the state of FIG.

【符号の説明】１ 曲げ型 ２ ガラス板状体 ３ 基体部 ４ 可動の翼部 ６ 支持部 11 支持枠体 12 溝部 13 支柱 15 ブラケット 17 アーム 21 支持バー 23 遮蔽部材 27 止部[Explanation of symbols] 1 Bendable type 2 Glass plate-like body 3 Base part 4 Movable wing part 6 Support part 11 Support frame body 12 Groove part 13 Strut 15 Bracket 17 Arm 21 Support bar 23 Shielding member 27 Stop part

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 支持枠体上に載置した、基体部と翼部と
から少なくともなる自重曲げ方式によるガラス板の曲げ
型において、該翼部域ならびに該翼部から該基体部にか
けての域で、前記ガラス板状体の載置後あるいは前記ガ
ラス板の成型につれて該遮蔽部材が該翼部より開放され
た位置から遮蔽回動するようにし、曲げ型に載置したガ
ラス板より離隔し加熱部との空間に遮蔽部材を配置し、
曲げガラス板を曲げ型より持ち上げ離れると同時に該遮
蔽部材が開放位置に戻ることの繰り返しをするようにし
て成ることを特徴とするガラス板の曲げ型。1. A bending die for a glass plate, which is placed on a support frame and comprises at least a base portion and a wing portion by a self-weight bending method, in the wing portion region and a region from the wing portion to the base portion. After the glass plate member is placed or as the glass plate is molded, the shield member is shielded and rotated from a position opened from the wing portion, and is separated from the glass plate placed on the bending die and is heated. Place a shielding member in the space of,
A bending mold for a glass plate, characterized in that the shielding member is repeatedly returned to the open position at the same time when the bending glass plate is lifted away from the bending mold. 【請求項２】 前記自重曲げ方式が、基体部と夫々外側
端が上方向に回動する左右の可動の翼部とから少なくと
もなる蝶番式屈曲型のガラス板の曲げ型であって、該可
動の翼部域ならびに該可動の翼部から前記基体部にかけ
ての域で、前記可動の翼部の上方向の回動につれて該遮
蔽部材が該可動の翼部より開放された位置から遮蔽回動
するようにし、曲げ型に載置したガラス板より離隔し加
熱部との空間に遮蔽部材を配置し、曲げガラス板を曲げ
型より持ち上げ離れると同時に該遮蔽部材が開放位置に
戻ることの繰り返しをするようにして成ることを特徴と
する請求項１記載のガラス板の曲げ型。2. The self-weight bending method is a hinge-type bending type glass plate bending type having at least a base body and left and right movable blades whose outer ends rotate upward, respectively. In the wing area and the area from the movable wing to the base body, the shielding member shields and rotates from the position opened from the movable wing as the movable wing moves upward. In this way, the shielding member is arranged in the space apart from the glass plate placed on the bending mold and the heating portion, and the shielding member is repeatedly returned to the open position while lifting the bending glass plate from the bending mold. The bending die for a glass plate according to claim 1, wherein the bending die is formed as described above. 【請求項３】 前記遮蔽部材が、少なくとも前記左右の
翼部の回りを自在に移動でき、決めえた位置で固定でき
るようにしたことを特徴とする請求項１および２記載の
ガラス板の曲げ型。3. The bending die for a glass plate according to claim 1, wherein the shielding member is freely movable around at least the left and right wings, and can be fixed at a predetermined position. .
JP15747393A 1993-06-28 1993-06-28 Bending molding for glass plate Pending JPH0710573A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15747393A JPH0710573A (en) 1993-06-28 1993-06-28 Bending molding for glass plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15747393A JPH0710573A (en) 1993-06-28 1993-06-28 Bending molding for glass plate

Publications (1)

Publication Number Publication Date
JPH0710573A true JPH0710573A (en) 1995-01-13

Family

ID=15650453

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15747393A Pending JPH0710573A (en) 1993-06-28 1993-06-28 Bending molding for glass plate

Country Status (1)

Country Link
JP (1) JPH0710573A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012528062A (en) * 2009-05-27 2012-11-12 サン−ゴバン グラス フランス Glazing with little double imaging
CN103183465A (en) * 2011-12-31 2013-07-03 深圳奔迅汽车玻璃有限公司 Hot bending die of deep bending hyperbolic automotive glass and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012528062A (en) * 2009-05-27 2012-11-12 サン−ゴバン グラス フランス Glazing with little double imaging
CN103183465A (en) * 2011-12-31 2013-07-03 深圳奔迅汽车玻璃有限公司 Hot bending die of deep bending hyperbolic automotive glass and method
CN103183465B (en) * 2011-12-31 2015-04-22 东莞奔迅汽车玻璃有限公司 Hot bending die of deep bending hyperbolic automotive glass and method

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