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Title:
ガラス物品の製造装置及び製造方法
Document Type and Number:
Japanese Patent JP7022304
Kind Code:
B2
Abstract:
To prevent a situation insufficient for a downflow amount of molten glass in a width direction as much as possible to suppress a variation in the thickness size of a product part.SOLUTION: An apparatus for manufacturing a glass article comprises: an overflow groove 3; a pair of flowing-down walls 4 on which molten glass Gm overflowing from the overflow groove 3 flows down; and two pairs of guide parts 8 in total provided in both width direction ends of each flowing-down wall 4 and guiding the flowing down of the molten glass Gm. The pair of flowing-down walls 4 comprise: a pair of first flowing-down surfaces 6 extended below; and a pair of second flowing-down surfaces 7 positioned below the first flowing-down surfaces 6 and served as opposite slopes approaching each other downward to meet at a lower end. Each guide part 8 has first slopes 9 connected with width direction ends 6a of the first flowing-down surface 6 and having an upslope in a direction away in the width direction from the first flowing-down surface 6.SELECTED DRAWING: Figure 4

Inventors:
Enomoto Godai
Yuji Konan
Tsubasa Kakai
Kazuto Nakatsuka
Yasuhiro Nishimura
Application Number:
JP2017246563A
Publication Date:
February 18, 2022
Filing Date:
December 22, 2017
Export Citation:
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Assignee:
Nippon Electric Glass Co., Ltd.
International Classes:
C03B17/06; C03C3/16
Domestic Patent References:
JP2013184877A
Attorney, Agent or Firm:
Kunihiko Shiromura
Tsuyoshi Kumano
Takashi Yoshikawa