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Title:
SEALING HEAD FOR MANUFACTURING GLASS PANEL UNIT AND METHOD FOR SEALING IN-PROCESS ITEM OF GLASS PANEL UNIT
Document Type and Number:
WIPO Patent Application WO/2019/187964
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a glass panel unit having a depressurized internal space with a structure without a mark of an exhaust pipe left. A sealing head (9) comprises a frame (1), an intake unit (2), a pushing pin (3), and a non-contact heater (4). The frame (1) is detachably fitted to an in-process item (8) of the glass panel unit. The intake unit (2), the pushing pin (3), and the non-contact heater (4) are supported by the frame (1). The in-process item (8) has a first substrate (81), a second substrate (82), a joint unit (86), and an interior space (85). The first substrate (81) has an exhaust hole (815). The joint unit (86) joints the first substrate (81) with the second substrate (82). The interior space (85) is formed so as to be surrounded by the first substrate (81), the second substrate (82), and the joint unit (86), and communicates with the exhaust hole (815). The pushing pin (3) pushes a thermofusible sealing material (89) inserted in the exhaust hole (815) into the second substrate (82). The non-contact heater (4) locally heats the sealing material (89) in a non-contact state via the second substrate (82).

Inventors:
ISHIKAWA HARUHIKO
SHIMIZU TAKESHI
NONAKA MASATAKA
URIU EIICHI
HASEGAWA KAZUYA
ISHIBASHI TASUKU
ABE HIROYUKI
Application Number:
PCT/JP2019/007921
Publication Date:
October 03, 2019
Filing Date:
February 28, 2019
Export Citation:
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Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
C03C27/06
Domestic Patent References:
WO2017170378A12017-10-05
Foreign References:
JP2017141136A2017-08-17
JP2001354456A2001-12-25
Other References:
See also references of EP 3778510A4
Attorney, Agent or Firm:
HOKUTO PATENT ATTORNEYS OFFICE (JP)
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