JPS585851B2 - flat glass bending type - Google Patents
flat glass bending typeInfo
- Publication number
- JPS585851B2 JPS585851B2 JP53025358A JP2535878A JPS585851B2 JP S585851 B2 JPS585851 B2 JP S585851B2 JP 53025358 A JP53025358 A JP 53025358A JP 2535878 A JP2535878 A JP 2535878A JP S585851 B2 JPS585851 B2 JP S585851B2
- Authority
- JP
- Japan
- Prior art keywords
- rod
- bending
- wing
- weight
- plate glass
- 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
Landscapes
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Description
【発明の詳細な説明】
本発明は板ガラスを加熱し重力により曲げる、所謂゛重
力曲げ”に適した板ガラスの屈曲型に関し、特に板ガラ
スを直角に近くしかも鋭く曲げるのに適した屈曲型に関
する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a bending type of plate glass suitable for so-called ``gravity bending'' in which plate glass is heated and bent by gravity, and particularly relates to a bending type suitable for bending plate glass sharply and almost at right angles.
近年、自動車用窓ガラスにおいて運転者の後方の視野を
広く確保するため、あるいは音響機器の蓋体において演
奏中のレコード等の内部が見透しできるよう、板ガラス
を直角に近く曲げた製品が要求されている。In recent years, there has been a demand for products with plate glass bent at nearly right angles, such as in car window glasses to ensure a wide rear field of view for drivers, or in the lids of audio equipment to allow the inside of a record being played to be seen through. has been done.
そのため、板ガラスを屈曲型に載置して加熱炉中に入れ
て加熱し板ガラスを軟化させ、それを屈曲型の働きによ
り曲げていた。For this reason, a plate glass was placed on a bending die, placed in a heating furnace, heated to soften the plate glass, and then bent by the action of the bending die.
このための屈曲型としては、従来板ガラスの平担部を支
持する型中央部分と曲げられる個所を支持する型両翼部
分から構成された型枠に、中央部分に軸支され一端は翼
部分に固着され他端に重錘が固着された杆体が備えられ
たものが用いられていた。Conventionally, the bending mold for this purpose is made up of a mold center part that supports the flat part of the plate glass and wing parts that support the bending part, and is pivoted in the center part and fixed to the wing part at one end. A rod with a weight attached to the other end was used.
そしそ板ガラスの加熱による軟化に伴なって、重錘にか
かる重力により杆体が旋回し、杆体の他端に固着された
翼部を上方に回動させて板ガラスを屈曲させていた。As the plate glass softens due to heating, the rod rotates due to the gravity exerted on the weight, causing the wings fixed to the other end of the rod to rotate upward, thereby bending the plate glass.
しかしこのような従来の屈曲型においては、比較的浅い
角度に板ガラスを曲げる場合は杆体の回転角は小さいの
で杆体の軸から重錘までの水平距離は回転中余り変化せ
ず、そのため重錘に加わる重力により生ずる回転モーメ
ントはほぼ一定であり、容易に曲げ加工ができるが、板
ガラスを直角近くまで曲げる場合には杆体の回転に伴な
って軸から重錘までの水平距離が大きく変化するため回
転モーメントが大きく変化する。However, in such a conventional bending type, when bending a plate glass at a relatively shallow angle, the rotation angle of the rod is small, so the horizontal distance from the rod axis to the weight does not change much during rotation; The rotational moment caused by the applied gravity is almost constant, making it easy to bend the glass, but when bending a plate glass to a nearly right angle, the horizontal distance from the axis to the weight changes greatly as the rod rotates, so rotation is difficult. The moment changes significantly.
そのため曲げ終了時に杆体がほぼ水平位置で支持される
従来の屈曲型では曲げ開始時杆体を水平方向に対して直
角近くまで起立させるため回転モーメントが小さくなり
、それを補うため重錘を重くすると、曲げ終了時近くの
回転モーメントが大きくなり過ぎるという問題があった
。Therefore, in the conventional bending type in which the rod is supported in a nearly horizontal position at the end of bending, the rod is erected nearly perpendicular to the horizontal direction at the beginning of bending, resulting in a small rotational moment.To compensate for this, the weight is made heavier. There was a problem in that the rotational moment near the end of bending became too large.
また従来の改良された屈曲型としては、特公昭３６−１
１６２９号に示されている如く、２個以上の重錘を異な
る方向に延びる杆体に取り付け、旋回により杆体の方向
が水平に近づき回転モーメントが増大してくると一方の
重錘を固定支持架で支持し回転モーメントを減少させて
回転モーメントの大きな変動を防ぐような構造のものが
知られている。In addition, as a conventional improved bending type, there is
As shown in No. 1629, two or more weights are attached to rods extending in different directions, and when the rods become horizontal due to rotation and the rotational moment increases, one of the weights is attached to a fixed support frame. Structures are known that provide support and reduce the rotational moment to prevent large fluctuations in the rotational moment.
しかしこのような屈曲型は構造が複雑で、板ガラスの厚
み、曲げ角度等に応じて２本の杆体の角度や重錘の位置
の調整がやっかいであり、更には構造が複雑なため湾曲
型全体の熱容量が大きくなり炉内温度推持に熱量を増加
しなげればならず、炉出し後の冷却も時間を要するとい
う問題があった。However, this type of bending type has a complicated structure, and it is difficult to adjust the angle of the two rods and the position of the weight depending on the thickness of the glass plate, the bending angle, etc. There was a problem that the heat capacity of the product increased, and the amount of heat had to be increased to maintain the temperature inside the furnace, and cooling after taking it out of the furnace also took time.
本発明はこうした従来技術の欠点を解消するため開発さ
れたもので、従来の屈曲型では重錘を取付けられた杆体
が回転する角度と同じ角度しか翼部分も回動しないとい
う構造に問題があると考え杆体の回転に応じて杆体の回
転角以上の角度にわたって翼部分が回動するよう構成し
た屈曲型を提供するものである。The present invention was developed to overcome these drawbacks of the conventional technology.The conventional bending type has a structure in which the wing portion only rotates by the same angle as the rod to which the weight is attached. With this in mind, we provide a bent type in which the wing portion rotates over an angle equal to or greater than the rotation angle of the rod in response to the rotation of the rod.
以下本発明の実施例を図に沿って説明する。Embodiments of the present invention will be described below with reference to the drawings.
第１図及び第２図に示される如く屈曲型３０は、板ガラ
スの中央部を載置し曲げ加工の後中央部に緩やかな曲率
を与える型中央部分１と、中央部分１の両側に回動可能
に連結された翼部分２とから成る返ガラス載置面を有す
る。As shown in FIGS. 1 and 2, the bending mold 30 has a mold center portion 1 on which the center portion of the plate glass is placed and which gives a gentle curvature to the center portion after bending, and a mold center portion 1 that rotates on both sides of the center portion 1. It has a return glass resting surface consisting of a wing section 2 that can be connected.
これら中央部分１と翼部分２は内側部材３、外側部材３
および連結部材３′により構成される。These central part 1 and wing part 2 are composed of an inner member 3 and an outer member 3.
and a connecting member 3'.
翼部分２を回動させるための杆体４は中央部分１に軸８
で回動可能に軸支され、杆体４の先端部には重錘５が所
望の位置に固定できるよう摺動自在に設けられている。A rod 4 for rotating the wing portion 2 has a shaft 8 in the central portion 1.
A weight 5 is slidably provided at the tip of the rod 4 so that it can be fixed at a desired position.
第２図に詳しく示される如く、杆体４の他端には細長孔
６が設けられ、翼部分２に固着された係止ピン７が挿入
され、これによって杆体４はピンＩにより長手方向に摺
動可能でかつ回転可能に支持される。As shown in detail in FIG. 2, an elongated hole 6 is provided at the other end of the rod 4, into which a locking pin 7 fixed to the wing portion 2 is inserted, whereby the rod 4 is slid longitudinally by the pin I. movably and rotatably supported.
更に中央部分１と翼部分２とは、一端が翼部分２に固着
され他端が中央部分２に設けられた軸１０に軸支されて
いる。Further, the central part 1 and the wing part 2 are fixed to the wing part 2 at one end and pivotally supported at the other end by a shaft 10 provided in the central part 2.
軸１０は杆体４の軸８の上方でかつ翼部分２に近い方に
設けられ、杆体４の旋回中軸１０からピン７までの距離
が軸８からピン７までの距離より常に短かくなるように
なっている。The shaft 10 is provided above the shaft 8 of the rod 4 and closer to the wing portion 2, so that the distance from the pivot 10 of the rod 4 to the pin 7 is always shorter than the distance from the shaft 8 to the pin 7. It has become.
次に第１図及び第２図に示された屈曲型を用いて板ガラ
スを曲げる場合の動作について述べる。Next, the operation of bending a glass plate using the bending mold shown in FIGS. 1 and 2 will be described.
屈曲型３０上に板ガラスを載置し軟化温度付近の炉中へ
搬送する。A plate glass is placed on the bending mold 30 and transported into a furnace at a temperature near the softening temperature.
板ガラスが軟化するに従い重錘５にかかる重力により杆
休４に重錘５が下降しその回転モーメントにより杆体４
の細長孔６はピン７を伴なって上方に回動する。As the plate glass softens, the weight 5 is lowered to the rod 4 due to the gravity applied to the weight 5, and its rotational moment causes the rod 4 to move downward.
The elongated hole 6 rotates upwards together with the pin 7.
そのため翼部分２は支片９の軸１０を中心に上方に回動
する。The wing section 2 therefore pivots upward about the axis 10 of the support piece 9.
この時、翼部分２の回動の中心である軸１０が杆体４の
軸８より上方でかつ翼部分２に近い側に位置するため、
細長孔６の移動を軸８から見た回転角よりも軸１０から
見た回転角の方が大きくなる。At this time, since the axis 10, which is the center of rotation of the wing section 2, is located above the axis 8 of the rod 4 and on the side closer to the wing section 2,
The rotation angle of the movement of the elongated hole 6 when viewed from the axis 10 is larger than the rotation angle when viewed from the axis 8.
すなわち、杆体４が回転する角度よりも大きい角度だけ
翼部分２は軸１０を中心に回転することになる。That is, the wing portion 2 rotates about the axis 10 by an angle greater than the angle through which the rod 4 rotates.
この時杆体４の細長孔６内の係止ピンＴは軸８から遠去
かる方向に移動する。At this time, the locking pin T in the elongated hole 6 of the rod 4 moves in a direction away from the shaft 8.
杆体４は重錘５が下降し中央部分１に設けられた支持部
材１１上に当接したところで回動を停止する。The rod 4 stops rotating when the weight 5 descends and comes into contact with a support member 11 provided in the central portion 1.
この結果杆体４は最初杆体４が中央部分１と成している
角度だけ回転するが翼部分２はそれ以上の角度回転し、
屈曲型３０上の板ガラスは翼部分２上に載った板ガラス
の両翼部を鋭く曲げられる。As a result, the rod 4 initially rotates by the angle that the rod 4 forms with the central portion 1, but the wing portion 2 rotates by a greater angle,
The glass sheet on the bending mold 30 is sharply bent with both wings of the glass sheet resting on the wing section 2.
以上述べた如く、本発明の屈曲型によれば板ガラスを直
角近くまで曲げる場合にも重錘を備えた杆体の初期角度
を中央部分に対し直角近くまで起立させる必要はなく、
比較的小さい初期角度で済むため、杆体に加わるモーメ
ントひいては翼部分２を回動させようというモーメント
は初期においてもそれほど小さくならず、板ガラスを直
角に近くかつ鋭く曲げる形成が確実に実施できるという
優れた効果を持つものである。As described above, according to the bending type of the present invention, even when bending a plate glass to a nearly right angle, there is no need to raise the initial angle of the rod equipped with the weight to a nearly right angle with respect to the central portion.
Since the initial angle is relatively small, the moment applied to the rod and the moment to rotate the wing part 2 are not so small even in the initial stage, and this is an excellent method in that it is possible to reliably form a sharp bend of the glass sheet at a nearly right angle. It is effective.
第１図は本発明に従う屈曲型の斜視図である。
第２図は第１図の装置の回動機構を示す部分的な図であ
る。
符号の説明、１・・・中央部分、２・・・翼部分、３・
・・内側部材、３・・・外側部材、ご′・・・連結部材
、４・・・杆体、５・・・重錘、６・・・細長孔、７・
・・係止ピン、８・・・軸、９・・・支片、１０・・・
軸、１１・・・重錘支持部材、３０・・・屈曲型。FIG. 1 is a perspective view of a bent type according to the invention. FIG. 2 is a partial view showing the rotation mechanism of the device of FIG. Explanation of symbols, 1... Central part, 2... Wing part, 3...
...Inner member, 3...Outer member, Connecting member, 4...Rod, 5...Weight, 6...Elongated hole, 7...
...Lock pin, 8...shaft, 9...branch, 10...
Shaft, 11... Weight support member, 30... Bent type.
Claims (1)
とをとり得るよう回動可能に連結された翼部分と、該中
央部分と中間部が軸支され一端に重錘が取り付けられ他
端は膜翼部分に固着された係止ピンに長手方向に摺動可
能でかつ回転可能に係止された杆体と、一端が該翼部分
に固着され他端が該中央部分の該杆体の軸支位置より該
係止ピンに近い位置に軸支された連結支片とを備え、そ
れによって該重錘の降下による該杆体の回動に応じて該
翼部分が該杆体の回転角より大きい回転角だけ回転する
ように構成されていることを特徴とする板ガラス湾曲型
。1 A central part, a wing part rotatably connected to the central part so as to be able to take a flat position and a curved position, and the central part and the intermediate part are pivotally supported and a weight is attached to one end. A rod whose end is longitudinally slidable and rotatably locked to a locking pin fixed to the membrane wing section, and an axis of the rod whose one end is fixed to the wing section and the other end is fixed to the central section. and a connecting support piece pivotally supported at a position closer to the locking pin than the support position, whereby the wing portion rotates by a rotation angle greater than the rotation angle of the rod in response to rotation of the rod due to the descent of the weight. A curved plate glass characterized by being configured so that only the corners rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53025358A JPS585851B2 (en) | 1978-03-08 | 1978-03-08 | flat glass bending type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53025358A JPS585851B2 (en) | 1978-03-08 | 1978-03-08 | flat glass bending type |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54118415A JPS54118415A (en) | 1979-09-13 |
| JPS585851B2 true JPS585851B2 (en) | 1983-02-02 |
Family
ID=12163613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53025358A Expired JPS585851B2 (en) | 1978-03-08 | 1978-03-08 | flat glass bending type |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS585851B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59151739U (en) * | 1983-03-31 | 1984-10-11 | スズキ株式会社 | car seat |
| JPS6270855U (en) * | 1985-10-25 | 1987-05-06 | ||
| JPS644157U (en) * | 1987-06-27 | 1989-01-11 | ||
| JPH0439728Y2 (en) * | 1985-04-22 | 1992-09-17 |
-
1978
- 1978-03-08 JP JP53025358A patent/JPS585851B2/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59151739U (en) * | 1983-03-31 | 1984-10-11 | スズキ株式会社 | car seat |
| JPH0439728Y2 (en) * | 1985-04-22 | 1992-09-17 | ||
| JPS6270855U (en) * | 1985-10-25 | 1987-05-06 | ||
| JPS644157U (en) * | 1987-06-27 | 1989-01-11 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54118415A (en) | 1979-09-13 |
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