Title:
GLASS GOB MOLDING DEVICE, METHOD FOR PRODUCING GLASS GOB, METHOD FOR PRODUCING GLASS MOLDED PRODUCT, AND METHOD FOR PRODUCING OPTICAL ELEMENT
Document Type and Number:
WIPO Patent Application WO/2013/111837
Kind Code:
A1
Abstract:
In this glass gob molding device (1): a supply flow path connected to a gas supply unit is branched toward a plurality of molding molds (102A, 102B); each branch flow path (106aA, 106aB) after being branched is brought into communication with a group of through holes (102H) by being connected to the corresponding glass molding mold (102A, 102B); and a throttle part (118A, 118B) that throttles each branch flow path (106aA, 106aB) is provided in each branch flow path (106aA, 106aB). The cross-sectional area (S1) of the branch flow path throttled by the throttle part (118A, 118B) is smaller than the sum (W) of the cross-sectional areas of the respective through holes appearing in the cross section when the group of through holes (102H) is cut along a direction orthogonal to the axial direction. With this glass gob molding device (1), it is possible to make molten glass float stably in each glass molding mold.
Inventors:
IGUCHI YOSHINORI (JP)
Application Number:
PCT/JP2013/051509
Publication Date:
August 01, 2013
Filing Date:
January 24, 2013
Export Citation:
Assignee:
HOYA CORP (JP)
International Classes:
C03B11/00; C03B7/14; C03B11/02
Foreign References:
| JP2007246307A | 2007-09-27 | |||
| JP2003020248A | 2003-01-24 |
Attorney, Agent or Firm:
WILLFORT INTERNATIONAL (JP)
Patent business corporation Wil photograph international patent firm (JP)
Patent business corporation Wil photograph international patent firm (JP)
Download PDF:
Claims: