JPH06271325A - Method and device for producing bent glass sheet - Google Patents
Method and device for producing bent glass sheetInfo
- Publication number
- JPH06271325A JPH06271325A JP5720493A JP5720493A JPH06271325A JP H06271325 A JPH06271325 A JP H06271325A JP 5720493 A JP5720493 A JP 5720493A JP 5720493 A JP5720493 A JP 5720493A JP H06271325 A JPH06271325 A JP H06271325A
- Authority
- JP
- Japan
- Prior art keywords
- bent
- glass plate
- mold
- bending
- sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
Description
【０００１】[0001]
【産業上の利用分野】本発明は平板状ガラスを、鋭く屈
曲した両側部と緩やかに湾曲した中央部からなる、断面
が略幅広Ｕ字形状に変形加工した曲げガラス板、その製
造方法法並びに装置に関するもので、該曲げガラス板は
水槽、ショーケース、出窓等に好適に利用される。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bent glass plate which is formed by deforming a flat glass into U-shaped sections each having a sharply bent side portion and a gently curved central portion, and a method of manufacturing the same. The apparatus relates to a device, and the bent glass plate is suitably used for water tanks, showcases, bay windows, and the like.
【０００２】[0002]
【従来技術とその問題点】本出願人は、本出願人の考案
にかかる実願平4 −88369 号において、平板状ガラスの
両側部を鋭く屈曲させる装置に関し、モールド基体部
と、夫々外側端が上方に回動する左右のモールド可動翼
部と、これら可動翼部に付設した重錘とからなる蝶番式
曲げモールド上にガラス板を載置し、これを加熱炉に導
いて重力曲げ方式により両側部域を上方に鋭く屈曲させ
るものであって、予め加熱炉内には、前記曲げモールド
の基体部と可動翼部の境界曲げ線部の直下に位置するよ
う局部加熱用発熱体を配するとともに、発熱体両側には
放射熱を前記曲げ線に集中させるために略ハの字形の放
射制御板を配設したガラス板の屈曲装置を提唱した。2. Description of the Related Art The applicant of the present invention, in Japanese Patent Application No. 4-88369 of the present applicant, relates to a device for sharply bending both sides of a flat glass, and relates to a mold base portion and an outer end thereof, respectively. The glass plate is placed on the hinged bending mold consisting of the left and right mold movable wings that rotate upward and the weight attached to these movable wings, and this is guided to the heating furnace by the gravity bending method. Both side regions are sharply bent upward, and a heating element for local heating is arranged in advance in the heating furnace so as to be located immediately below the boundary bending line between the base of the bending mold and the movable blade. At the same time, a bending device for a glass plate was proposed in which a radiation control plate having a substantially C-shape was arranged on both sides of the heating element to concentrate the radiant heat on the bending line.
【０００３】得られた屈曲ガラス板は、観賞用水槽、建
築物の出窓、ショーケース等に利用されるが、全体が直
線的で意匠性に欠け、またボリューム感に乏しいという
感は否めない。The obtained bent glass plate is used as an ornamental water tank, a bay window of a building, a showcase, etc., but it is undeniable that the entire bent glass plate is linear and lacks in design and lacks in volume.
【０００４】本発明は前記不具合を解消した曲げガラス
板、その製造方法並びに装置を提供するものである。The present invention provides a bent glass plate that solves the above problems, a method of manufacturing the same, and an apparatus for manufacturing the same.
【０００５】[0005]
【問題点を解決するための手段】本発明は、板状ガラス
を変形加工した曲げガラス板であって、鋭く屈曲した両
側部と緩やかに湾曲した中央部からなる、断面が略幅広
Ｕ字形状を呈する曲げガラス板、板状ガラスを、鋭く屈
曲した両側部と緩やかに湾曲した中央部からなる、断面
が略幅広Ｕ字形状に変形加工するガラス板の曲げ方法に
おいて、ガラス板を、緩やかに凹状に湾曲したモールド
基体部と、夫々外側端が上方に回動する左右のモールド
可動翼部と、これら可動翼部に付設した重錘とからなる
蝶番式曲げモールドに載置し、加熱炉において全体加熱
するとともに、ガラス板中央部とガラス板両側部間をさ
らに局部加熱し、ガラス板両側部を上方に鋭く屈曲する
ようにしたこと、前記曲げガラス板の製造方法におい
て、ガラス板を一旦緩やかに凹状に湾曲した仮曲げモー
ルドに載置して加熱炉において加熱、曲げ処理を施した
後、該曲げガラス板を蝶番式曲げモールドに載置し、加
熱炉において加熱し、曲げ処理を施すようにしたこと、
前記曲げガラス板の製造方法に適用する装置であって、
ガラス板を蝶番式曲げモールドに載置し、加熱炉内に導
き屈曲させる際に、予め加熱炉内には、前記曲げモール
ドのモールド基体部とモールド可動翼部の境界曲げ線部
の直下に位置するよう局部加熱用発熱体を配するととも
に、発熱体両側には放射熱を前記曲げ線部に集中させる
ために略ハの字形の放射制御板を配設し、加熱するよう
にしたこと、から構成される。DISCLOSURE OF THE INVENTION The present invention is a bent glass plate obtained by deforming plate-shaped glass, and has a substantially wide U-shaped cross section, which is composed of sharply bent side parts and a gently curved central part. In a bending method of a glass plate, which is a bent glass plate having a shape of, a plate-shaped glass, which is composed of sharply bent side parts and a gently curved center part and has a substantially U-shaped cross section, the glass plate is gently bent. The mold base portion curved in a concave shape, the left and right mold movable blade portions whose outer ends rotate upward, and the weights attached to these movable blade portions are placed on a hinge-type bending mold and placed in a heating furnace. Along with heating the whole, further locally heating between the central portion of the glass plate and both sides of the glass plate, so that both sides of the glass plate are bent sharply upward, in the method for producing a bent glass plate, the glass plate is once After being placed on a temporary bending mold that is gently curved in a concave shape and heated and bent in a heating furnace, the bending glass plate is placed on a hinge-type bending mold and heated in a heating furnace to perform bending processing. What I did,
A device applied to the method for manufacturing a bent glass plate,
When the glass plate is placed on the hinge-type bending mold and is guided into the heating furnace and bent, it is previously positioned in the heating furnace immediately below the boundary bending line between the mold base part and the mold movable blade part of the bending mold. In addition to arranging the heating element for local heating so that the heating element is heated by arranging radiation control plates in a substantially C-shape on both sides of the heating element to concentrate radiant heat on the bending line portion. Composed.
【０００６】[0006]
【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。図１Ａ〜Ｃは曲げガラス板G を水槽、ショーケ
ース、出窓に使用した例を示した斜視図で、それ自体意
匠性を醸し出すとともに、図１Ａの水槽においては一枚
の曲げガラス板G で前面および両側面を構成したもの
で、別の湾曲ガラス板G"との接合部分を最小限に留める
ことができ、また平面のみで組合せた従来の水槽に比べ
内容積を広く採れ、さらにレンズ効果により小魚類が拡
大された状態で鑑賞できる等利点が多い。図１Ｂのショ
ーケースは正面、上下面を一枚の曲げガラス板G 、両側
面を別のガラス板G"で構成し、図１Ｃの出窓は前面およ
び両側面を一枚の曲げガラス板G で構成したもので、と
もに内容積が広く採れ、ボリューム感を出すことができ
る。いずれのケースにおいても他のガラス板との接合部
を最小限に留め、または接合を不要とし、組立も容易で
ある。Embodiments of the present invention will be described below with reference to the accompanying drawings. 1A to 1C are perspective views showing an example in which a bent glass plate G is used for a water tank, a showcase, and a bay window, and the design itself is produced, and in the water tank of FIG. 1A, one bent glass plate G is used as a front surface. And both sides are configured to minimize the joint part with another curved glass plate G ", and it has a wider internal volume than the conventional aquarium combined with only a flat surface, and due to the lens effect There are many advantages such as viewing small fish in an enlarged state.The showcase in Fig. 1B has one bent glass plate G on the front and top and bottom sides, and another glass plate G "on both sides. The bay window is composed of a single bent glass plate G on the front and both sides, and both have a large internal volume, giving a sense of volume. In any case, the joint with other glass plates is minimized or the joint is not required, and the assembly is easy.
【０００７】図２Ａは曲げガラス板を製造するための蝶
番式曲げモールドの概略斜視図、図２Ｂはそれにより得
られた曲げガラス板の斜視図であり、図３は仮曲げモー
ルドの概略斜視図である。FIG. 2A is a schematic perspective view of a hinge-type bending mold for producing a bent glass plate, FIG. 2B is a perspective view of the bending glass plate thus obtained, and FIG. 3 is a schematic perspective view of a temporary bending mold. Is.
【０００８】図２Ａにおいて、1 が蝶番式曲げモール
ド、2 がガラス板G'を載置する基体部で2'がその支持
枠、3 がガラス板G'を載置する左の可動翼部で3'がその
支持枠、4 がガラス板G'を載置する右の可動翼部で4'が
その支持枠である。これら基体部あるいは可動翼部と夫
々の支持枠とは固設、一体化せしめる。なお、例えば左
の可動翼部3 のガラス板G'と接触する上辺には突部5 を
全体に配設し、ガラス板G'との接触面積を抑えてその影
響を最小限とするもので、基体部2 、右の可動翼部4 に
おいても同様に突部を配設するが、これら突部の配設は
公知の技術事項である。In FIG. 2A, 1 is a hinge-type bending mold, 2 is a base part on which a glass plate G'is mounted, 2'is its supporting frame, and 3 is a left movable wing part on which a glass plate G'is mounted. 3'is its support frame, 4 is the right movable wing on which the glass plate G'is mounted, and 4'is its support frame. The base body portion or the movable wing portion and the respective support frames are fixed and integrated. It should be noted that, for example, the protrusion 5 is entirely provided on the upper side of the left movable wing portion 3 that comes into contact with the glass plate G ', and the contact area with the glass plate G'is suppressed to minimize its influence. Similarly, the base portion 2 and the right movable wing portion 4 are also provided with protrusions, and the provision of these protrusions is a known technical matter.
【０００９】さらに支持枠2'と3'とは軸6 において軸着
し (軸6 は図中手前側と後方側に設けるが手前側は図示
を省略した) 、支持枠2'と4'とは軸6'において軸着し
(軸6と同様であり、手前側を省略した) 、従って支持枠
3'、4'、すなわち可動翼部3、4 は前記軸を中心に矢印7
、7'のように回動可能とする。なお二点鎖線で示すY
、Y が軸線すなわちガラス板G'の曲げ線部である。Further, the support frames 2'and 3'are pivotally attached to a shaft 6 (the shaft 6 is provided on the front side and the rear side in the figure, but the front side is not shown), and the support frames 2'and 4 ' Is pivoted on shaft 6 '
(Similar to axis 6, omitting the front side), so support frame
3 ', 4', that is, the movable wings 3, 4 have arrows 7
, 7 '. It should be noted that the Y indicated by the chain double
, Y is the axis, that is, the bending line portion of the glass sheet G '.
【００１０】8 、8'は夫々支持枠3'、4'に柄を介して付
設した重錘であり、ガラス板の軟化に伴い該重錘の重力
により矢印9 、9'のように倒伏し、可動翼部3 、4 を矢
印7、7'方向に回動せしめるものである。なお、本実施
例においては手前側にも同様な重錘を付設したものであ
るが図示を省略した。勿論重錘は適宜手前側、後方側の
両方にも取付け、あるいはいずれか片側に取付けること
ができる。Reference numerals 8 and 8'represent weights attached to the support frames 3'and 4'through a handle, respectively, and they fall down as indicated by arrows 9 and 9'because of the weight of the weights as the glass plate softens. , The movable wings 3, 4 are rotated in the directions of arrows 7, 7 '. In this embodiment, a similar weight is attached to the front side, but the illustration is omitted. Of course, the weight can be appropriately attached to both the front side and the rear side, or can be attached to either one side.
【００１１】図示しないが、蝶番式曲げモールド1 はそ
の下方に長方形輪郭を有する走行枠体を配してこれに架
設しており、走行枠体はチェーンにより牽引され、ある
いは下部に車輪を付設しレール上を走行する等により、
加熱炉内を走行、停止可能とするもので、これも公知の
事項である。Although not shown, the hinge-type bending mold 1 has a traveling frame body having a rectangular contour disposed below the hinged bending mold 1 and is erected on the traveling frame body. The traveling frame body is pulled by a chain or wheels are attached to the lower portion. By running on the rail,
It is possible to run and stop in the heating furnace, which is also a known matter.
【００１２】12,12'、12,12'は夫々ハの字型に配した例
えばセラミック系放射制御板であり、本実施例において
は放射制御板12、12を蝶番式曲げモールド1 の基体部2
に付設し、放射制御板12' 、12' を夫々左の可動翼部3
、右の可動翼部4 に付設せしめるものである。放射制
御板は適部に孔を穿設しビス止めして付設担持されるよ
うにする他、燐酸アルミニウム系等の耐熱無機接着剤に
よるもの、半田付け等溶着手段によるもの等、材質特性
に応じ適宜被接着体に付着せしめる。なお放射制御板と
して熱線反射性に富み、表面を鏡面仕上げした金属、あ
るいはセラミックを採用するもので、例えば、ステンレ
ススチール、アルミナ系耐熱無機材等が推奨される。Reference numerals 12, 12 'and 12, 12' are, for example, ceramic radiation control plates arranged in a V-shape, and in this embodiment, the radiation control plates 12, 12 are the base parts of the hinged bending mold 1 . 2
The radiation control plates 12 'and 12' are attached to the left movable wing 3 respectively.
, Is attached to the right movable wing section 4. Depending on the material characteristics, the radiation control plate can be attached and supported by drilling holes in appropriate parts and fixing it with screws, as well as using a heat-resistant inorganic adhesive such as aluminum phosphate or by welding means such as soldering. Appropriately adhere to the adherend. It should be noted that the radiation control plate is made of metal or ceramic having a high heat ray reflectivity and having a mirror-finished surface, and, for example, stainless steel, alumina heat-resistant inorganic material or the like is recommended.
【００１３】放射制御板は本出願人の先の考案にかかる
実願平4 −88369 号に提起したように、走行枠体に架設
したり、支持支柱11−11間、11' −11' 間に発熱体に沿
って架設する等適宜配することができる。The radiation control plate is installed on the traveling frame or between the support columns 11-11 and 11'-11 'as proposed in Japanese Patent Application No. 4-88369 of the applicant's earlier invention. It can be arranged appropriately, for example, by being installed along the heating element.
【００１４】10、10' は予め加熱炉内に配した局部加熱
用の発熱体、例えば棒状の炭化珪素発熱体であり、夫々
支持支柱11−11、11' −11' に横架し、発熱体両端には
図示しないリード線を接続し通電可能とする。なお支持
支柱11、11' 全体は昇降可能とするものである。Numerals 10 and 10 'are heating elements for local heating, such as rod-shaped silicon carbide heating elements, which are previously arranged in the heating furnace, and are horizontally laid on the supporting columns 11-11 and 11'-11' to generate heat. Lead wires (not shown) are connected to both ends of the body so that electricity can be applied. The entire supporting columns 11 and 11 'can be raised and lowered.
【００１５】局部加熱用発熱体は、炭化珪素等のセラミ
ック、ニッケル−クロム系等の金属など、ガラス板の軟
化点、通常ソーダ石灰系ガラスの軟化点720 ℃前後に余
裕をもって昇温でき、耐久性のあるものであればよい。
また棒状、リボン状、スパイラル状等各種形状のものが
採用できる。The heating element for local heating is a ceramic such as silicon carbide, a metal such as nickel-chromium, and the like, and the softening point of the glass plate, the softening point of ordinary soda-lime glass can be raised to around 720 ° C. with a margin and durability. Anything can be used.
Moreover, various shapes such as a rod shape, a ribbon shape, and a spiral shape can be adopted.
【００１６】曲げガラス板の製造に際しては、ガラス板
G'を蝶番式曲げモールド1 の上に載置し、さらにモール
ドを走行枠体で担持し、加熱炉に導いて所定位置に停止
させ、ガラス板G'の歪点以上、例えばソーダ石灰ガラス
板においては550 ℃以上に加熱する。さらに炭化珪素発
熱体10、10' を支持支柱11.11 、11'.11' を操作して上
昇、近接させ通電発熱することにより、ガラス板G'の曲
げ線部Y を局部的に650 ℃以上に加熱し、該部を軟化さ
せる。前記軟化に伴い、重錘8 、8'の重力により可動翼
部3 、4 が回動し、ガラス板G'が屈曲する。以降通常の
手段により徐冷し、あるいは急冷強化することにより、
曲げガラス板G を得るものである。When manufacturing a bent glass plate, a glass plate is used.
G'is placed on the hinge-type bending mold 1 , and the mold is further carried by the traveling frame body, guided to a heating furnace and stopped at a predetermined position, above the strain point of the glass plate G ', for example, soda-lime glass plate. At 550 ℃, heat to above 550 ℃. Further, by operating the supporting columns 11.11 and 11'.11 'of the silicon carbide heating elements 10 and 10' to raise them and bring them closer to each other to generate heat by energization, the bending line portion Y of the glass plate G'is locally heated to 650 ° C or more. Heat to soften the part. With the softening, the movable wings 3, 4 are rotated by the gravity of the weights 8, 8 ', and the glass plate G'is bent. After that, by gradually cooling or quenching by usual means,
A bent glass sheet G is obtained.
【００１７】なお、図示しないが本出願人の先の考案に
かかる実願平4 −88369 号に提起したように、ガラス板
曲げ線部Y 、Y の上方に該曲げ線に沿って屈曲補助杆を
配設しておけば、鋭い屈曲をより容易に得ることができ
る。該屈曲補助杆は例えば窒化珪素、炭化珪素等ガラス
に濡れ難い材料を適宜選択すればよい。屈曲補助杆は蝶
番式曲げモールド1 にガラス板G を載置後その上に架け
渡すようにしてもよいし、適宜公知の昇降手段を採用し
て昇降自在とし、加熱−屈曲に際して降下近接するよう
にしてもよい。勿論、該屈曲補助杆はガラス板の屈曲に
際し、それと同等温度ないしやや高い温度に保持してお
くことはいうまでもない。Although not shown, as proposed in Japanese Patent Application No. 4-88369 of the present applicant's earlier invention, a bending assist rod is provided above the glass plate bending line portions Y 1 and Y along the bending line. By disposing, it is possible to obtain a sharp bend more easily. For the bending assist rod, for example, a material such as silicon nitride or silicon carbide that is difficult to wet the glass may be appropriately selected. The bending assist rod may be arranged so that the glass plate G is placed on the hinge type bending mold 1 and then laid over it. You may Of course, it is needless to say that the bending auxiliary rod is kept at a temperature equal to or slightly higher than the temperature when the glass plate is bent.
【００１８】これら実施例、態様によれば図２Ｂの破線
Z に示すような、ダブリ等が抑制された曲げガラス板G
を容易に得ることができる。According to these embodiments and aspects, the dashed line in FIG. 2B
Bent glass plate G with reduced burrs as shown in Z
Can be easily obtained.
【００１９】図３は仮曲げモールド13の斜視図である。
すなわち、さらに容易に精密に曲げられた曲げガラス板
を得る好適な例を示すものであり、ガラス板G'を蝶番式
曲げモールド1 で曲げ加工するに先立ち、予め湾曲部
(図２ＢにおけるW 部) を形成するために仮曲げモール
ド13で湾曲せしめるものである。仮曲げモールド13はガ
ラス板載置部14と支持部15とからなり、その間は連結子
16を全周 (図示は一部のみを示す) 配設して形成され
る。仮曲げモールド13も蝶番式曲げモールド1 同様に走
行枠体に載置し、さらにモールド13上にガラス板G'を載
置して加熱炉に導き、ガラス板を湾曲せしめる。以降先
述同様にガラス板を蝶番式曲げモールド1 に載置し、加
熱炉内で加熱曲げ操作を行うことにより曲げガラス板G
を得ることができる。FIG. 3 is a perspective view of the temporary bending mold 13 .
That is, it shows a preferred example of obtaining a bent glass plate that is more easily and precisely bent, and prior to bending the glass plate G ′ with the hinge-type bending mold 1 , the curved portion is previously formed.
It is bent by the temporary bending mold 13 to form (W portion in FIG. 2B). The temporary bending mold 13 is composed of a glass plate mounting portion 14 and a supporting portion 15, and a space between them is a connector.
It is formed by arranging 16 all around (only part of the drawing is shown). The temporary bending mold 13 is also placed on the traveling frame in the same manner as the hinge type bending mold 1 , and the glass plate G ′ is placed on the mold 13 and guided to the heating furnace to bend the glass plate. After that, the glass plate is placed on the hinge-type bending mold 1 in the same manner as described above, and the bending glass plate G is subjected to the heating bending operation in the heating furnace.
Can be obtained.
【００２０】[0020]
【発明の効果】本発明において、曲げガラス板は一枚も
ので緩やかな湾曲部と鋭い屈曲部からなる曲、直線がマ
ッチして意匠性を醸し出し、例えば観賞用水槽として使
用すれば小魚類が凸レンズ効果により拡大されて観賞で
き、容積も増大し、ボリューム感を創出する。また出窓
として使用すれば屋内を広くみせ、ショーケースとして
も容積が増大しボリューム感を出す等の利点がある。EFFECTS OF THE INVENTION In the present invention, a bent glass plate is a single piece, and a curve composed of a gentle curved portion and a sharp bent portion and a straight line are matched to create a design characteristic. For example, when used as an ornamental water tank, small fish It is magnified for viewing with a convex lens effect, and the volume increases, creating a sense of volume. Further, when used as a bay window, it has the advantages of making the interior look wide, and increasing the volume as a showcase, giving a sense of volume.
【００２１】また、製造手段においては、蝶番式曲げモ
ールドを用いてガラス板を容易かつ正確に緩やかな湾曲
部と、鋭く直角またはその前後に屈曲した部分からなる
曲げガラス板が形成でき、かつダブリその他の欠陥も生
じ難いという効果を奏するものである。Further, in the manufacturing means, a hinged bending mold can be used to form a bent glass plate which is easily and accurately formed into a gentle curved portion and a bent glass plate which is sharply bent at right angles or before and after the bent glass plate, and is doubled. This has the effect that other defects are less likely to occur.
【図１】図１は曲げガラス板の使用例を例示した斜視図
で、図１Ａは水槽として使用した例、図１Ｂはショーケ
ースとして使用した例、図１Ｃは建物の出窓として使用
した例を示す。1 is a perspective view illustrating an example of using a bent glass plate, FIG. 1A is an example used as a water tank, FIG. 1B is an example used as a showcase, and FIG. 1C is an example used as a bay window of a building. Show.
【図２】図２Ａは蝶番式曲げモールドの概略斜視図、図
２Ｂは得られる曲げガラス板の斜視図である。FIG. 2A is a schematic perspective view of a hinged bending mold, and FIG. 2B is a perspective view of a bent glass plate obtained.
【図３】仮曲げモールドの斜視図である。FIG. 3 is a perspective view of a temporary bending mold.
【符号の説明】1 蝶番式曲げモールド 2 基体部 3 、4 可動翼部 10、10' 炭化珪素発熱体 12、12' 放射制御板 G 曲げガラス板[Explanation of symbols] 1 Hinged bending mold 2 Base parts 3, 4 Movable blade parts 10, 10 'Silicon carbide heating element 12, 12' Radiation control plate G Bending glass plate
Claims (4)
あって、鋭く屈曲した両側部と緩やかに湾曲した中央部
からなる、断面が略幅広Ｕ字形状を呈することを特徴と
する曲げガラス板。1. A bent glass plate obtained by deforming plate-shaped glass, wherein the bent glass plate has a substantially U-shaped cross section, which is composed of sharply bent side parts and a gently curved center part. Board.
かに湾曲した中央部からなる、断面が略幅広Ｕ字形状に
変形加工するガラス板の曲げ方法において、ガラス板
を、緩やかに凹状に湾曲したモールド基体部と、夫々外
側端が上方に回動する左右のモールド可動翼部と、これ
ら可動翼部に付設した重錘とからなる蝶番式曲げモール
ドに載置し、加熱炉において全体加熱するとともに、ガ
ラス板中央部とガラス板両側部間をさらに局部加熱し、
ガラス板両側部を上方に鋭く屈曲するようにしたことを
特徴とする曲げガラス板の製造方法。2. A method of bending a glass sheet, comprising: a sharply bent side portion and a gently curved central portion, the cross-section being deformed into a substantially wide U-shape, wherein the glass sheet is gently concave. Placed on a hinged bending mold consisting of a curved mold base portion, left and right mold movable blade portions whose outer ends rotate upward, and weights attached to these movable blade portions, and placed in a heating furnace as a whole. While heating, locally heat the glass plate central part and both sides of the glass plate further,
A method for manufacturing a bent glass plate, characterized in that both side portions of the glass plate are sharply bent upward.
曲げモールドに載置して加熱炉において加熱、曲げ処理
を施した後、該曲げガラス板を蝶番式曲げモールドに載
置し、加熱炉において加熱し、曲げ処理を施すようにし
たことを特徴とする請求項２記載の曲げガラス板の製造
方法。3. A glass plate is once placed on a temporary bending mold that is gently curved in a concave shape, heated and bent in a heating furnace, and then the bent glass plate is placed on a hinged bending mold and heated. The method for producing a bent glass sheet according to claim 2, wherein the bending glass sheet is heated in a furnace and subjected to a bending treatment.
造方法に適用する装置であって、ガラス板を蝶番式曲げ
モールドに載置し、加熱炉内に導き屈曲させる際に、予
め加熱炉内には、前記曲げモールドのモールド基体部と
モールド可動翼部の境界曲げ線部の直下に位置するよう
局部加熱用発熱体を配するとともに、発熱体両側には放
射熱を前記曲げ線部に集中させるために略ハの字形の放
射制御板を配設し、加熱するようにしたことを特徴とす
る曲げガラス板の製造装置。4. An apparatus applied to the method for producing a bent glass sheet according to claim 2 or 3, wherein the glass sheet is placed on a hinged bending mold and heated in advance when the glass sheet is introduced into a heating furnace and bent. In the furnace, a heating element for local heating is arranged so as to be located immediately below the boundary bending line portion between the mold base portion of the bending mold and the movable mold blade portion of the mold, and radiant heat is applied to both sides of the heating element. An apparatus for manufacturing a bent glass plate, characterized in that a radiation control plate having a substantially V-shape is arranged to concentrate the heat on the plate, and the plate is heated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5720493A JPH06271325A (en) | 1993-03-17 | 1993-03-17 | Method and device for producing bent glass sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5720493A JPH06271325A (en) | 1993-03-17 | 1993-03-17 | Method and device for producing bent glass sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06271325A true JPH06271325A (en) | 1994-09-27 |
Family
ID=13048975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5720493A Pending JPH06271325A (en) | 1993-03-17 | 1993-03-17 | Method and device for producing bent glass sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06271325A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004099094A1 (en) * | 2003-05-09 | 2004-11-18 | Asahi Glass Company, Limited | Glass plate heating method, and heating furnace |
| WO2008075694A1 (en) * | 2006-12-19 | 2008-06-26 | Asahi Glass Company, Limited | Method and apparatus for forming curved glass plate |
| CN112479570A (en) * | 2019-09-12 | 2021-03-12 | 成都拓米双都光电有限公司 | Hot bending apparatus and hot bending method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55158138A (en) * | 1979-05-23 | 1980-12-09 | Nissan Motor Co Ltd | Manufacture of bent glass |
| JPS5721496A (en) * | 1980-07-14 | 1982-02-04 | Toyota Motor Corp | Sliding member |
-
1993
- 1993-03-17 JP JP5720493A patent/JPH06271325A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55158138A (en) * | 1979-05-23 | 1980-12-09 | Nissan Motor Co Ltd | Manufacture of bent glass |
| JPS5721496A (en) * | 1980-07-14 | 1982-02-04 | Toyota Motor Corp | Sliding member |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004099094A1 (en) * | 2003-05-09 | 2004-11-18 | Asahi Glass Company, Limited | Glass plate heating method, and heating furnace |
| CN100415667C (en) * | 2003-05-09 | 2008-09-03 | 旭硝子株式会社 | Method for heating a glass sheet and heating furnace therefor |
| WO2008075694A1 (en) * | 2006-12-19 | 2008-06-26 | Asahi Glass Company, Limited | Method and apparatus for forming curved glass plate |
| US8387415B2 (en) | 2006-12-19 | 2013-03-05 | Asahi Glass Company, Limited | Method for bending a glass sheet and apparatus for bending a glass sheet |
| JP5223680B2 (en) * | 2006-12-19 | 2013-06-26 | 旭硝子株式会社 | Glass plate bending method and glass plate bending apparatus |
| CN112479570A (en) * | 2019-09-12 | 2021-03-12 | 成都拓米双都光电有限公司 | Hot bending apparatus and hot bending method |
| CN112479570B (en) * | 2019-09-12 | 2024-02-09 | 成都拓米双都光电有限公司 | Hot bending equipment and hot bending method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100316858B1 (en) | Glass sheet bending method and apparatus | |
| JP5897594B2 (en) | Method and apparatus for bending a material sheet into a molded article | |
| JP3427357B2 (en) | Method and apparatus for bending sheet glass | |
| EP0761614A1 (en) | Method for heating, forming and tempering a glass sheet | |
| EP0613864A1 (en) | Bending glass sheets | |
| JPH0829955B2 (en) | Contour bending mold for forming high temperature glass sheet by its own weight | |
| CN104854043B (en) | The bending apparatus of the moulding glass for aircraft transparencies | |
| JPS58194751A (en) | Device for bending glass plates | |
| US2872756A (en) | Apparatus for forming curved glass panes | |
| CA1275568C (en) | Lightweight bending iron heat shields | |
| JPH06271325A (en) | Method and device for producing bent glass sheet | |
| JPH0441148Y2 (en) | ||
| US3847586A (en) | Apparatus for bending glass sheets to sharp curvatures | |
| US4229201A (en) | Apparatus for bending glass sheets to complicated curvatures using localized supplementary heating | |
| US4072493A (en) | Method and apparatus for reshaping glass sheets | |
| US4375978A (en) | Lightweight outline mold with low thermal inertia for shaping glass sheets | |
| US3511628A (en) | Method and apparatus for bending glass in sheet form | |
| US3281227A (en) | Method of bending glass sheets | |
| US4066429A (en) | Bending glass sheets to a tapered line of bend | |
| US3248195A (en) | Method and apparatus for bending glass sheets to compound curvatures | |
| US3976462A (en) | Method and apparatus for bending glass sheets | |
| US3356480A (en) | Method for bending glass sheets | |
| DE2646845A1 (en) | DEVICE FOR BENDING GLASS PANELS WITH THE HELP OF PRESSING TOOLS | |
| JPH0651249U (en) | Glass plate bending device | |
| CA1099106A (en) | Shaping glass sheets |