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Patent Searching and Data


Title:
METHOD FOR MANUFACTURING GLASS SHEET AND METHOD FOR MANUFACTURING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/244712
Kind Code:
A1
Abstract:
A method for manufacturing a glass sheet, said method comprising: a start point forming step for forming a scribe line 4 on a planned cutting section 2 of a glass sheet 1; a setting step for employing a supporting member 5, said supporting member 5 having a groove-shaped concave section 6 formed on a supporting surface 5a supporting the glass sheet 1, and allowing the supporting member 5 to support the glass sheet 1 having the scribe line 4 formed thereon from one surface 1a side in such a manner that the planned cutting section 2 is disposed on the concave section 6; and a cutting step for generating a negative pressure in the concave section 6, bending the planned cutting section 2 on the concave section 6 to thereby convex the surface 1a side, and thus cutting the glass sheet 1 along the planned cutting section 2 starting with the scribe line 4, wherein, in performing the cutting step, the whole concave section 6 is covered with a covering member 8 through the glass sheet 1 from the other surface 1b side of the glass sheet 1.

Inventors:
TAKIMOTO HIROSHI (JP)
MATSUBUSHI TAISEI (JP)
NAKAJIMA MASAO (JP)
Application Number:
PCT/JP2019/023092
Publication Date:
December 26, 2019
Filing Date:
June 11, 2019
Export Citation:
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Assignee:
NIPPON ELECTRIC GLASS CO (JP)
International Classes:
C03B33/033; B28D5/00; B28D7/04; C03B33/04
Domestic Patent References:
WO2011155314A12011-12-15
Foreign References:
JP2015079436A2015-04-23
JPH09278469A1997-10-28
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (JP)
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