JPS57174827A - Manufacture of circular fluorescent lamp - Google Patents

Manufacture of circular fluorescent lamp

Info

Publication number
JPS57174827A
JPS57174827A JP5992881A JP5992881A JPS57174827A JP S57174827 A JPS57174827 A JP S57174827A JP 5992881 A JP5992881 A JP 5992881A JP 5992881 A JP5992881 A JP 5992881A JP S57174827 A JPS57174827 A JP S57174827A
Authority
JP
Japan
Prior art keywords
bulb
linear
manufacture
bending
circle
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
JP5992881A
Other languages
Japanese (ja)
Inventor
Yoichi Ikeuchi
Toshiteru Tomita
Akira Maeda
Naomichi Kumagai
Tsutomu Maeda
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.)
NIPPON DENKI SYLVANIA KK
NEC Home Electronics Ltd
Original Assignee
NIPPON DENKI SYLVANIA KK
NEC Home Electronics 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 NIPPON DENKI SYLVANIA KK, NEC Home Electronics Ltd filed Critical NIPPON DENKI SYLVANIA KK
Priority to JP5992881A priority Critical patent/JPS57174827A/en
Publication of JPS57174827A publication Critical patent/JPS57174827A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
    • H01J9/245—Manufacture or joining of vessels, leading-in conductors or bases specially adapted for gas discharge tubes or lamps
    • H01J9/247—Manufacture or joining of vessels, leading-in conductors or bases specially adapted for gas discharge tubes or lamps specially adapted for gas-discharge lamps
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/04—Re-forming tubes or rods
    • C03B23/06—Re-forming tubes or rods by bending
    • C03B23/065—Re-forming tubes or rods by bending in only one plane, e.g. for making circular neon tubes

Abstract

PURPOSE:To prevent the deterioration of the production yield, by setting the moving time to be required when bending a linear bulb into a circle through a molding roller in the specific range thereby completely eliminating the supporting miss of the lower end of the bulb through a pin. CONSTITUTION:The upper end of a linear bulb is secured at the stopping position (I) of a moving member A which rotates intermittently, and gradually softened thermally when passing through a heating furnace D. Then the bulb is transferred from position (II) to position (III) and passes through an electric oven E while being supported by a pin and bent into a circle by a molding roller G at the position (IV). The time required for the movement of 1 position of the moving member A (Moving time) is not to 1.5-2.1sec when bending the linear bulb into FCL32 while 1.6-2.3sec for FCL40.
JP5992881A 1981-04-20 1981-04-20 Manufacture of circular fluorescent lamp Pending JPS57174827A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5992881A JPS57174827A (en) 1981-04-20 1981-04-20 Manufacture of circular fluorescent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5992881A JPS57174827A (en) 1981-04-20 1981-04-20 Manufacture of circular fluorescent lamp

Publications (1)

Publication Number Publication Date
JPS57174827A true JPS57174827A (en) 1982-10-27

Family

ID=13127271

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5992881A Pending JPS57174827A (en) 1981-04-20 1981-04-20 Manufacture of circular fluorescent lamp

Country Status (1)

Country Link
JP (1) JPS57174827A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5960942A (en) * 1982-09-30 1984-04-07 Toshiba Corp Manufacture of circular fluorescent lamp
US10344807B2 (en) 2016-02-16 2019-07-09 Hoerbiger Antriebstechnik Holding Gmbh Synchronizer device and synchronization method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52118865A (en) * 1976-03-30 1977-10-05 Nec Home Electronics Ltd Process for manufacturing circle discharge lamp

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52118865A (en) * 1976-03-30 1977-10-05 Nec Home Electronics Ltd Process for manufacturing circle discharge lamp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5960942A (en) * 1982-09-30 1984-04-07 Toshiba Corp Manufacture of circular fluorescent lamp
US10344807B2 (en) 2016-02-16 2019-07-09 Hoerbiger Antriebstechnik Holding Gmbh Synchronizer device and synchronization method

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