JPS5532629A - Diaphragm manufacturing method and forming die - Google Patents

Diaphragm manufacturing method and forming die

Info

Publication number
JPS5532629A
JPS5532629A JP10588978A JP10588978A JPS5532629A JP S5532629 A JPS5532629 A JP S5532629A JP 10588978 A JP10588978 A JP 10588978A JP 10588978 A JP10588978 A JP 10588978A JP S5532629 A JPS5532629 A JP S5532629A
Authority
JP
Japan
Prior art keywords
zone
diaphragm
die
shape
forming
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.)
Granted
Application number
JP10588978A
Other languages
Japanese (ja)
Other versions
JPS5618378B2 (en
Inventor
Katsuhiko Doi
Torahiko Noma
Hatsuyoshi Nakayama
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.)
Nok Corp
Original Assignee
Nippon Oil Seal Industry Co Ltd
Nok Corp
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 Oil Seal Industry Co Ltd, Nok Corp filed Critical Nippon Oil Seal Industry Co Ltd
Priority to JP10588978A priority Critical patent/JPS5532629A/en
Publication of JPS5532629A publication Critical patent/JPS5532629A/en
Publication of JPS5618378B2 publication Critical patent/JPS5618378B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Diaphragms And Bellows (AREA)

Abstract

PURPOSE: To prevent the air from remaining between die and product and also to prevent products from being deformed or damaged at the time of forming a flathead conical diaphragm used for gas meters by employing a hollow die with specific shape.
CONSTITUTION: There are used a lower die 10 comprising a slab zone 11 coping with the shape of a mounting base 2, a projection zone 14 with a shape corresponding to a profile of the top inside 7 of a diaphragm and a given height and a hollow 16 at the center and an upper die 20 comprising a plane zone 21 coping with the shape of the mounting base 2, an inner edge 24 specifying the angle of a slant zone 3 of the diaphragm and a void 23 at the center. Then, a diaphragm forming material is arranged between the said dies 10, 20 the upper die 20 and the lower die 10 are kept adhering each other closely to have the projection zone 14 form a dent 4 and the slant zone 3, and the diaphragm is subjected to a vulcanization forming through heating and pressurizing.
COPYRIGHT: (C)1980,JPO&Japio
JP10588978A 1978-08-30 1978-08-30 Diaphragm manufacturing method and forming die Granted JPS5532629A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10588978A JPS5532629A (en) 1978-08-30 1978-08-30 Diaphragm manufacturing method and forming die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10588978A JPS5532629A (en) 1978-08-30 1978-08-30 Diaphragm manufacturing method and forming die

Publications (2)

Publication Number Publication Date
JPS5532629A true JPS5532629A (en) 1980-03-07
JPS5618378B2 JPS5618378B2 (en) 1981-04-28

Family

ID=14419477

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10588978A Granted JPS5532629A (en) 1978-08-30 1978-08-30 Diaphragm manufacturing method and forming die

Country Status (1)

Country Link
JP (1) JPS5532629A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006177805A (en) * 2004-12-22 2006-07-06 Kimmon Mfg Co Ltd Diaphragm-type gas meter

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS535348A (en) * 1976-07-03 1978-01-18 Takurou Noda Wind force generating set with wind collector

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS535348A (en) * 1976-07-03 1978-01-18 Takurou Noda Wind force generating set with wind collector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006177805A (en) * 2004-12-22 2006-07-06 Kimmon Mfg Co Ltd Diaphragm-type gas meter
JP4676197B2 (en) * 2004-12-22 2011-04-27 株式会社金門製作所 Membrane gas meter

Also Published As

Publication number Publication date
JPS5618378B2 (en) 1981-04-28

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