JPS6328848B2 - - Google Patents
Info
- Publication number
- JPS6328848B2 JPS6328848B2 JP7332182A JP7332182A JPS6328848B2 JP S6328848 B2 JPS6328848 B2 JP S6328848B2 JP 7332182 A JP7332182 A JP 7332182A JP 7332182 A JP7332182 A JP 7332182A JP S6328848 B2 JPS6328848 B2 JP S6328848B2
- Authority
- JP
- Japan
- Prior art keywords
- glass plate
- frame
- bending
- bent
- weight
- 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.)
- Expired
Links
- 239000011521 glass Substances 0.000 claims description 70
- 238000005452 bending Methods 0.000 claims description 31
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 4
- 239000012210 heat-resistant fiber Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000004744 fabric Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000010425 asbestos Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
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
- C03B23/0258—Gravity bending involving applying local or additional heating, cooling or insulating means
-
- 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
- C03B23/0256—Gravity bending accelerated by applying mechanical forces, e.g. inertia, weights or local forces
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Description
【発明の詳細な説明】
本発明はガラス板の自重曲げ加工装置に係り、
更に詳しくはガラス板の大部分を一方に屈曲させ
残余部を逆に屈曲させて断面Ｓ字状の形状を少く
とも一部に有する曲げガラス板を製造するための
ガラス板の自重曲げ加工装置に関するものであ
る。[Detailed Description of the Invention] The present invention relates to an apparatus for bending a glass plate under its own weight,
More specifically, it relates to a glass plate self-weight bending device for manufacturing a bent glass plate having at least a part of an S-shaped cross section by bending a large part of the glass plate in one direction and bending the remaining part in the opposite direction. It is something.
自動車、電車、船舶、航空機等の輸送機器用、
建築用、その他の各種用途に彎曲強化ガラスが多
く使用されている。これらを製造する為には、所
要の寸法形状に切断したガラス板をその軟化温度
まで、又はその近傍まで加熱し、次いでプレス成
形、自重成形、ロール成形、エアフオームなどの
各種曲げ加工法を用いて彎曲せしめ、その後に急
冷する曲げ強化方法が一般に行なわれている。 For transportation equipment such as cars, trains, ships, and aircraft,
Curved tempered glass is widely used in architectural and other applications. In order to manufacture these, a glass plate cut into the required size and shape is heated to its softening temperature or close to it, and then various bending methods such as press forming, self-weight forming, roll forming, and air forming are used. A bending strengthening method is generally used in which the material is bent and then rapidly cooled.
最近、自動車のデザインの多様化等に応じて、
自動車等ガラスとしてガラス板の大部分を一方に
屈曲させ残余部を逆に屈曲させて断面Ｓ字状の形
状を少くとも一部に有する曲げガラス板が要求さ
れるようになつている。このような曲げガラス板
を以下「複曲ガラス」と称する。 Recently, in response to the diversification of automobile designs,
BACKGROUND ART There is a growing demand for bent glass sheets for automobiles and the like, which have at least a portion of the glass sheet having an S-shaped cross section by bending most of the glass sheet in one direction and bending the remaining portion in the opposite direction. Such a bent glass plate is hereinafter referred to as "compound glass."
複曲ガラスへの加工は、プレス成形等によつて
行なうこともできるが、製造費が嵩むとか、ガラ
ス面に型跡がつき易い等の問題がある。また、従
来の自重成形法ではこのような複曲ガラスの加工
は実現されていなかつた。 Processing into compound curved glass can also be carried out by press molding or the like, but there are problems such as increased manufacturing costs and the tendency to leave mold marks on the glass surface. Furthermore, conventional self-weight forming methods have not been able to process such multi-curved glass.
本発明の目的は、この様な複曲ガラス板を簡単
に自重曲げ成型することができるガラス板の自重
曲げ加工装置を提供するにある。 An object of the present invention is to provide an apparatus for bending a glass plate by its own weight, which can easily bend such a multi-curved glass plate by its own weight.
本発明によるガラス板の自重曲げ加工装置は、
ガラス板の大部分を一方に屈曲させ残余部を逆に
屈曲させて断面Ｓ字状の形状を少くとも一部に有
する曲げガラス板（以下複曲ガラスという）とす
るガラス板の自重曲げ加工装置において、曲げ加
工するガラス板をその周縁部付近において所望の
上記断面Ｓ字状の形状に合致する上成形面を少く
とも一部に含んでいる輪郭支承部にて支承する枠
型と、該枠型の両側の縦輪郭支承部の間に、下側
に退去可能に架設され、自重曲げ加工時に、ガラ
ス板を屈曲が反転する稜線位置で支承する中間枠
と、前記ガラス板の残余部の端縁部に上側より当
接し、該残余部を押し曲げる押え枠とを有するこ
とを特徴とする装置である。 The glass plate self-weight bending device according to the present invention includes:
A self-weight bending device for a glass plate, which bends a large part of the glass plate in one direction and bends the remaining part in the opposite direction to produce a bent glass plate having at least a portion of an S-shaped cross section (hereinafter referred to as double-bent glass). , a frame mold for supporting a glass plate to be bent on a contour support portion that includes at least a part of the upper molding surface that conforms to the desired S-shaped cross-sectional shape near the periphery of the frame mold, and the frame; An intermediate frame is constructed so as to be removable downward between the vertical profile support parts on both sides of the mold, and supports the glass plate at the ridgeline position where the bending is reversed during the self-weight bending process, and an end of the remaining part of the glass plate. This device is characterized by having a presser frame that abuts the edge from above and presses and bends the remaining portion.
本発明によるガラス板自重曲げ加工装置の好ま
しい態様においては、前記中間枠のガラス板支承
面に耐熱繊維体が貼付してあり、他の好ましい態
様においては、前記ガラス板の屈曲が反転する稜
線位置に近接して該稜線部分を局部加熱する加熱
器を備えている。 In a preferred embodiment of the glass plate self-weight bending device according to the present invention, a heat-resistant fiber body is attached to the glass plate supporting surface of the intermediate frame, and in another preferred embodiment, a ridgeline position where the bending of the glass plate is reversed. A heater for locally heating the ridge line portion is provided in the vicinity of the ridge line.
以下、本発明の装置を実施例に基づいて説明す
る。 Hereinafter, the apparatus of the present invention will be explained based on examples.
本発明の装置にて曲げ加工された複曲ガラス
は、第１図、第２図に示すように、ガラス板１の
大部分１Ａを一方（第１図で上方）に屈曲させ
て、残余部１Ｂを逆（第１図で下方）に屈曲させ
て、断面Ｓ字状の形状を少くとも一部に有するも
のである。一点鎖線１Ｃが屈曲が反転する稜線で
ある。このような複曲ガラスは、例えば自動車の
リアガラス、フロントガラス等として使用され
る。 As shown in FIGS. 1 and 2, the compound glass bent by the apparatus of the present invention is produced by bending most part 1A of the glass plate 1 to one side (upward in FIG. 1) and bending the remaining part 1B is bent in the opposite direction (downward in FIG. 1), and at least a portion thereof has an S-shaped cross section. A dashed-dotted line 1C is the ridgeline where the bending is reversed. Such compound glass is used, for example, as a rear glass, a windshield, etc. of an automobile.
第３図は、第１図の様な形状の複曲ガラスを製
造するための枠型の実施例の斜視図である。枠型
２は、重力曲げ加工法により所望の形状の複曲ガ
ラスが得られる様にその形状に合致する上成形面
を有するリング状の輪郭支承部を有しており、こ
の輪郭支承部にてガラス板をその周縁ないし周縁
の少し内側を支承する様になつている。第３図の
型枠２の輪郭支承部は、縦輪郭支承部２Ａ及び横
輪郭支承部２Ｂを含んでおり、又、縦輪郭支承部
は主要部２A′と端部２A″とからなつている。そ
して、縦輪郭支承部の主要部２A′と端部２A″と
はヒンジ等により枢着され、重力曲げ完了時に端
部２A″が下がり第３図に示した様な位置となる
様にされている。又、枠型２の両側の縦輪郭支承
部２Ａ（縦輪郭支承部の主要部２A′及び端部２
A″）の上面は重力曲げ加工の完了時にＳ字状と
なる様に屈曲している。また、この装置には、枠
型２の両側の縦輪郭支承部２Ａの間に、下側に退
去可能に架設され、ガラス板１を自重曲げ加工時
に、ガラス板の稜線１Ｃ位置で支承する中間枠３
が設けられている。中間枠３の両端の枠型２の両
側の縦輪郭支承部２Ａに当接する部分は、例えば
直角に屈折せしめられて両側の縦輪郭支承部２Ａ
に軸３Ａにて枢着されている。中間枠３は図示せ
ざるピン等により、両側の縦輪郭支承部２Ａの稜
線１Ｃとの接触部と同一高さに固定可能とされて
いる。また、ピン等による固定を解除することに
より枢着軸３Ａを中心として第３図にて矢印に示
すように揺動し、ガラス板１の支承位置より下側
に退去する様にすることもできる。中間枠３の上
面には、アスベスト布、ガラス繊維布、セラミツ
クス繊維布等の軟かい断熱材を貼付し、軟化した
ガラス板１に枠跡がつかないようにしてある。 FIG. 3 is a perspective view of an embodiment of a frame mold for manufacturing compound curved glass having the shape shown in FIG. The frame mold 2 has a ring-shaped contour support portion having an upper molding surface that matches the shape of the compound curved glass in a desired shape by gravity bending. It is designed to support the glass plate at its periphery or slightly inside the periphery. The contour bearing part of the formwork 2 in FIG. 3 includes a vertical contour bearing part 2A and a horizontal contour bearing part 2B, and the vertical contour bearing part consists of a main part 2A' and an end part 2A''. The main part 2A' and the end 2A'' of the vertical profile support are pivotally connected by a hinge or the like, so that when the gravity bending is completed, the end 2A'' is lowered to the position shown in Figure 3. In addition, the vertical contour support portions 2A on both sides of the frame mold 2 (the main portion 2A′ and the end portion 2 of the vertical contour support portion
The upper surface of A'') is bent to form an S-shape when gravity bending is completed.In addition, this device has a structure that allows the frame to move downward between the vertical profile support parts 2A on both sides of the frame 2 An intermediate frame 3 that can be constructed to support the glass plate 1 at the ridge line 1C position when the glass plate 1 is bent under its own weight.
is provided. The portions at both ends of the intermediate frame 3 that come into contact with the vertical contour support portions 2A on both sides of the frame mold 2 are bent at right angles, for example, to form the vertical contour support portions 2A on both sides.
It is pivotally connected to the shaft 3A. The intermediate frame 3 can be fixed at the same height as the contact portion with the ridgeline 1C of the vertical contour support portions 2A on both sides by means of pins (not shown) or the like. Furthermore, by releasing the fixation with the pin etc., it can be made to swing around the pivot shaft 3A as shown by the arrow in FIG. . A soft heat insulating material such as asbestos cloth, glass fiber cloth, ceramic fiber cloth or the like is attached to the upper surface of the intermediate frame 3 to prevent frame marks from being left on the softened glass plate 1.
この装置には、第４図及び第５図に示すよう
に、押え枠４が設けてある。押え枠４は、枠型２
に載置されるガラス板１の稜線１Ｃ位置に近い位
置で、枠型２又は架台に固定された支柱５に軸支
されて回動する腕６に取付けられてある。また、
押え枠４には重錘７が取付けてある。枠型２上に
軟化したガラス板１が載置され、押え枠４の回動
が自由とされると、押え枠４は自重及び重錘７に
より回動し、ガラス板１の残余部１Ｂの端縁部を
枠型２上に押付けて、ガラス板１を屈曲させる。 This device is provided with a presser frame 4, as shown in FIGS. 4 and 5. The presser frame 4 is the frame type 2
It is attached to an arm 6 which pivots and pivots on a support 5 fixed to a frame 2 or a pedestal at a position close to the ridge line 1C of the glass plate 1 placed on the frame. Also,
A weight 7 is attached to the presser frame 4. When the softened glass plate 1 is placed on the frame mold 2 and the presser frame 4 is allowed to rotate freely, the presser frame 4 rotates due to its own weight and the weight 7, and the remaining portion 1B of the glass plate 1 is rotated. The edge portion is pressed onto the frame mold 2 to bend the glass plate 1.
この装置には更に、ガラス板１の稜線１Ｃに沿
つてガラス板１の上側で近接して彎曲又は直線の
棒状のヒーター８を設けることができる。ヒータ
ー８は稜線部１Ｃを局部的に加熱し、ガラス板１
の中間枠３を支点とする自重による屈曲を容易と
する。 This device can further be provided with a curved or straight rod-shaped heater 8 close to and above the glass plate 1 along the ridge line 1C of the glass plate 1. The heater 8 locally heats the ridgeline portion 1C, and the glass plate 1
The intermediate frame 3 is used as a fulcrum to facilitate bending due to its own weight.
本発明装置は以上の如く構成されているので、
ガラス板を複曲ガラスへの曲げ加工を簡単に行な
うことができる。即ち、軟化温度まで加熱され、
本発明の装置の枠型に載置されたガラス板は中間
枠を支点として、その大部の部分は中間枠と枠型
の前縁との間で側縁の彎曲線に沿つて自重により
垂下り、残余の部分は側縁が専ら下向にのみ彎曲
しているので、これに沿つて下向に彎曲する。ガ
ラス板の残余の部分は中間枠よりの長さが短く、
自重による曲げモーメントが少ないので、本発明
の装置ではガラス板の残余部の端縁を押え枠で押
し付けて該部を枠型に沿つて容易に彎曲すること
ができるようにしてある。更に、中間枠に沿つて
ガラス板は比較的鋭く屈曲されるので、所望の彎
曲率が容易に得られるように、ガラス板の中間枠
に沿う部分（稜線部）を局部的に加熱するヒータ
ーが設けられてある。また、中間枠のガラス板と
の接触面は柔軟な耐熱繊維体を貼付してあるので
接触するガラス板の部分が特に加熱されてもガラ
ス板に型跡をつけることはない。 Since the device of the present invention is configured as described above,
A glass plate can be easily bent into a multi-curved glass. That is, heated to a softening temperature,
The glass plate placed on the frame of the device of the present invention uses the intermediate frame as a fulcrum, and most of the glass plate hangs down due to its own weight between the intermediate frame and the front edge of the frame along the curved curve of the side edge. In the remaining part, the side edges are curved only downward, so it curves downward along these edges. The remaining part of the glass plate is shorter than the intermediate frame,
Since the bending moment due to its own weight is small, in the apparatus of the present invention, the edge of the remaining portion of the glass plate is pressed by a presser frame so that the portion can be easily bent along the frame shape. Furthermore, since the glass plate is bent relatively sharply along the intermediate frame, a heater is installed to locally heat the portion (ridge line) of the glass plate along the intermediate frame so that the desired curvature can be easily obtained. It is provided. Further, since a flexible heat-resistant fiber material is attached to the contact surface of the intermediate frame with the glass plate, even if the portion of the glass plate that comes into contact with the frame is particularly heated, no trace will be left on the glass plate.
中間枠はガラス板を自重曲げ加工後は下側に揺
動することができるので急冷加工時にガラス板の
稜線部の強化が充分に行なわれないとか、内部歪
が生ずる等の問題は起らない。押え枠は勿論曲げ
加工後引上げられるが、必要に応じ支持材より取
外すこともできる。 The intermediate frame can swing downward after the glass plate is bent under its own weight, so there are no problems such as insufficient reinforcement of the ridgeline of the glass plate or internal distortion during the rapid cooling process. . The presser frame is of course pulled up after the bending process, but it can also be removed from the support material if necessary.
以上の如く、本発明の装置は構造が簡単であ
り、ガラス板を複曲ガラスに簡単円滑に、且つ少
ない費用で曲げ加工することができる。 As described above, the apparatus of the present invention has a simple structure, and can easily and smoothly bend a glass plate into compound glass at a low cost.
第１図、第２図は本発明の装置で曲げ加工され
た複曲ガラスの一例の斜視図、第３，４，５図は
本発明の装置の実施例の一部を概略図で示すもの
で、第３図は枠型と中間枠の斜視図、第４図は側
面図、第５図は平面図である。
１……ガラス板、１Ａ，１Ｂ，１Ｃ……ガラス
板の大部分、残余部、稜線、２……枠型、２Ａ…
…枠型の縦輪郭支承部、２Ｂ……枠型の横輪郭支
承部、３……中間枠、４……押え枠、７……重
錘、８……加熱器。
Figures 1 and 2 are perspective views of an example of compound curved glass bent by the apparatus of the present invention, and Figures 3, 4, and 5 are schematic diagrams of some embodiments of the apparatus of the present invention. FIG. 3 is a perspective view of the frame mold and intermediate frame, FIG. 4 is a side view, and FIG. 5 is a plan view. 1...Glass plate, 1A, 1B, 1C...Most of the glass plate, remaining part, ridge line, 2...Frame shape, 2A...
... Frame-shaped vertical contour support, 2B... Frame-shaped horizontal contour support, 3... Intermediate frame, 4... Presser frame, 7... Weight, 8... Heater.
Claims (1)
逆に屈曲させて断面Ｓ字状の形状を少くとも一部
に有する曲げガラス板を製造するためのガラス板
の自重曲げ加工装置において、曲げ加工するガラ
ス板をその周縁部付近において所望の上記断面Ｓ
字状の形状に合致する上成形面を少くとも一部に
含んでいる輪郭支承部にて支承する枠型と、該枠
型の両側の縦輪郭支承部の間に、下側に退去可能
に架設され、自重曲げ加工時に、ガラス板を屈曲
が反転する稜線位置で支承する中間枠と、前記ガ
ラス板の残余部の端縁部に上側より当接し、該残
余部を押し曲げる押え枠とを有することを特徴と
するガラス板の曲げ加工装置。 ２ 前記中間枠のガラス板支承面に耐熱繊維体が
貼付してある特許請求の範囲第１項の装置。 ３ 前記ガラス板の屈曲が反転する稜線位置に近
接して該稜線部分を局部加熱する加熱器を備える
特許請求の範囲第１項又は第２項の装置。[Scope of Claims] 1. Self-weight of a glass plate for manufacturing a bent glass plate having at least a part of an S-shaped cross section by bending most of the glass plate in one direction and bending the remaining part in the opposite direction. In the bending device, the glass plate to be bent is bent into the desired cross section S near its periphery.
Between a frame supported by a contour support that includes at least a part of the upper molding surface that conforms to the shape of the letter, and vertical contour support on both sides of the frame, the frame can be retracted downward. An intermediate frame is constructed to support the glass plate at a ridgeline position where the bending is reversed during self-weight bending, and a presser frame abuts the edge of the remaining portion of the glass plate from above and presses and bends the remaining portion. A glass plate bending device comprising: 2. The device according to claim 1, wherein a heat-resistant fiber body is attached to the glass plate supporting surface of the intermediate frame. 3. The apparatus according to claim 1 or 2, further comprising a heater that locally heats the ridgeline portion in the vicinity of the ridgeline position where the bending of the glass plate is reversed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7332182A JPS58194751A (en) | 1982-05-04 | 1982-05-04 | Device for bending glass plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7332182A JPS58194751A (en) | 1982-05-04 | 1982-05-04 | Device for bending glass plates |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58194751A JPS58194751A (en) | 1983-11-12 |
| JPS6328848B2 true JPS6328848B2 (en) | 1988-06-10 |
Family
ID=13514784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7332182A Granted JPS58194751A (en) | 1982-05-04 | 1982-05-04 | Device for bending glass plates |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58194751A (en) |
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-
1982
- 1982-05-04 JP JP7332182A patent/JPS58194751A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58194751A (en) | 1983-11-12 |
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