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JPS557507A - Glass plate forming method and holding jig - Google Patents

Glass plate forming method and holding jig

Info

Publication number
JPS557507A
JPS557507A JP7649378A JP7649378A JPS557507A JP S557507 A JPS557507 A JP S557507A JP 7649378 A JP7649378 A JP 7649378A JP 7649378 A JP7649378 A JP 7649378A JP S557507 A JPS557507 A JP S557507A
Authority
JP
Japan
Prior art keywords
plate
jig
glass
glass plate
holding jig
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.)
Pending
Application number
JP7649378A
Other languages
Japanese (ja)
Inventor
Taishin Yoshino
Osamu Yugawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Renesas Eastern Japan Semiconductor Inc
Original Assignee
Hitachi Tokyo Electronics Co Ltd
Hitachi Ome Electronic Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Tokyo Electronics Co Ltd, Hitachi Ome Electronic Co Ltd filed Critical Hitachi Tokyo Electronics Co Ltd
Priority to JP7649378A priority Critical patent/JPS557507A/en
Publication of JPS557507A publication Critical patent/JPS557507A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/02—Re-forming glass sheets
    • C03B23/023—Re-forming glass sheets by bending
    • C03B23/025—Re-forming glass sheets by bending by gravity
    • C03B23/0252—Re-forming glass sheets by bending by gravity by gravity only, e.g. sagging

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)

Abstract

PURPOSE: To bend a glass plate by heat-softening the plate at a state in which it is held almost horizontally from the lower side with the edge parts free and by slouching the central part of the plate by the empty wt. to control occurrence of a point of contraflexure.
CONSTITUTION: Glass plate 10 is supported by jig 14. At this time, by regulating distance d' from one edge of plate 10 to the fulcrum to below 1.5 times as long as the plate thickness, pref. below the plate thickness, a point of contraflexure or contrary flexure is scarcely formed. By providing holding jig 18 with upper opening 18A slightly smaller than plate 10 and by providing one end of opening 18A with glass receiving recess 18a having a fulcrum distance corresponding to distance d' and other glass receiving recess 18b having a tapered inner wall, jig 18 can hold plate 10 horizontally and stably at the lower edge side even if plate 10 moves over opening 18A within range (f). Accordingly, high dimensional accuracy of plate 10 is not required.
COPYRIGHT: (C)1980,JPO&Japio
JP7649378A 1978-06-26 1978-06-26 Glass plate forming method and holding jig Pending JPS557507A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7649378A JPS557507A (en) 1978-06-26 1978-06-26 Glass plate forming method and holding jig

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7649378A JPS557507A (en) 1978-06-26 1978-06-26 Glass plate forming method and holding jig

Publications (1)

Publication Number Publication Date
JPS557507A true JPS557507A (en) 1980-01-19

Family

ID=13606737

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7649378A Pending JPS557507A (en) 1978-06-26 1978-06-26 Glass plate forming method and holding jig

Country Status (1)

Country Link
JP (1) JPS557507A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1333011A1 (en) * 2002-02-01 2003-08-06 Hornos Industriales Pujol S.A. Transparent heat-shaped glass furnace
EP1961707A1 (en) * 2005-11-30 2008-08-27 Hoya Corporation Process for production of molded articles, holders and molding equipment
KR101030886B1 (en) * 2010-07-28 2011-04-22 김한곤 Forming mold for curved surface tempered thin glass
US8197727B2 (en) 2005-11-30 2012-06-12 Hoya Corporation Method of manufacturing formed article, covering member, and forming apparatus comprising the same
JP2012116722A (en) * 2010-12-02 2012-06-21 Nippon Electric Glass Co Ltd Method and apparatus for bending forming glass plate
US8277704B2 (en) 2005-11-18 2012-10-02 Hoya Corporation Method of manufacturing formed article, mold and method of manufacturing the same
US8641937B2 (en) 2009-02-27 2014-02-04 Hoya Corporation Method of manufacturing lens casting mold and method of manufacturing eyeglass lens
WO2015179327A1 (en) * 2014-05-19 2015-11-26 Corning Incorporated Mold assembly for forming shaped glass articles
US9242889B2 (en) 2005-11-18 2016-01-26 Hoya Corporation Method of manufacturing formed article, glass material, and method of determining shape of glass material and mold
WO2020136909A1 (en) * 2018-12-28 2020-07-02 株式会社三光精衡所 Method for bending thermoplastic sheet, machining jig, and concave thermoplastic sheet

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1333011A1 (en) * 2002-02-01 2003-08-06 Hornos Industriales Pujol S.A. Transparent heat-shaped glass furnace
US8277704B2 (en) 2005-11-18 2012-10-02 Hoya Corporation Method of manufacturing formed article, mold and method of manufacturing the same
US9242889B2 (en) 2005-11-18 2016-01-26 Hoya Corporation Method of manufacturing formed article, glass material, and method of determining shape of glass material and mold
EP1961707A4 (en) * 2005-11-30 2014-10-01 Hoya Corp Process for production of molded articles, holders and molding equipment
US8197727B2 (en) 2005-11-30 2012-06-12 Hoya Corporation Method of manufacturing formed article, covering member, and forming apparatus comprising the same
EP1961707A1 (en) * 2005-11-30 2008-08-27 Hoya Corporation Process for production of molded articles, holders and molding equipment
US7950252B2 (en) * 2005-11-30 2011-05-31 Hoya Corporation Method of manufacturing formed article, support member, and forming apparatus
US8641937B2 (en) 2009-02-27 2014-02-04 Hoya Corporation Method of manufacturing lens casting mold and method of manufacturing eyeglass lens
KR101030886B1 (en) * 2010-07-28 2011-04-22 김한곤 Forming mold for curved surface tempered thin glass
JP2012116722A (en) * 2010-12-02 2012-06-21 Nippon Electric Glass Co Ltd Method and apparatus for bending forming glass plate
WO2015179327A1 (en) * 2014-05-19 2015-11-26 Corning Incorporated Mold assembly for forming shaped glass articles
US9505648B2 (en) 2014-05-19 2016-11-29 Corning Incorporated Mold assemblies for forming shaped glass articles
WO2020136909A1 (en) * 2018-12-28 2020-07-02 株式会社三光精衡所 Method for bending thermoplastic sheet, machining jig, and concave thermoplastic sheet
JPWO2020136909A1 (en) * 2018-12-28 2021-02-18 株式会社三光精衡所 Thermoplastic plate bending method, processing jig, and concave thermoplastic plate
CN112469673A (en) * 2018-12-28 2021-03-09 株式会社三光精衡所 Method for bending thermoplastic sheet, clamping device and concave thermoplastic sheet
GB2592760A (en) * 2018-12-28 2021-09-08 Sanko Seikosho Co Ltd Method for bending thermoplastic sheet, machining jig, and concave thermoplastic sheet
GB2592760B (en) * 2018-12-28 2023-11-15 Sanko Seikosho Co Ltd Thermoplastic plate bending method, working jig, and concave thermoplastic plate
US12043563B2 (en) 2018-12-28 2024-07-23 Sanko Seikosho Co., Ltd. Thermoplastic plate bending method, working jig, and concave thermoplastic plate

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