JPS5688480A - Production of oil seal - Google Patents

Production of oil seal

Info

Publication number
JPS5688480A
JPS5688480A JP16592279A JP16592279A JPS5688480A JP S5688480 A JPS5688480 A JP S5688480A JP 16592279 A JP16592279 A JP 16592279A JP 16592279 A JP16592279 A JP 16592279A JP S5688480 A JPS5688480 A JP S5688480A
Authority
JP
Japan
Prior art keywords
synthetic resin
resin material
film
material piece
wall
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
JP16592279A
Other languages
Japanese (ja)
Other versions
JPS6260580B2 (en
Inventor
Mitsugi Kobayashi
Takashi Namioka
Hideo Hatsuzawa
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 JP16592279A priority Critical patent/JPS5688480A/en
Publication of JPS5688480A publication Critical patent/JPS5688480A/en
Publication of JPS6260580B2 publication Critical patent/JPS6260580B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Sealing With Elastic Sealing Lips (AREA)
  • Sealing Material Composition (AREA)

Abstract

PURPOSE: To coat the sliding periphery side with a film of a low-friction synthetic resin material and thereby to produce an oil seal low in driving power loss, by arranging a synthetic resin material so that a film of the material coats also the periphery of a sublip, under pressure, and heating the arranged material under pressure.
CONSTITUTION: A synthetic resin material piece 14 is placed on the terrace portion 12 of a protrusion 11 of a lower mold 10 having a radially extending wall 16 and a cylindrical part 17 extending axially from the outer end of the wall 16, and a ring- form unvulcanized rubberlike elastic material piece 15 is placed on the wall 16. Then, upon the lower mold 10 is laid an upper mold 20, and the rubberlike elastic material piece 15 is molded by heating, so as to obtain a seal part 1 and, at the same time, so as to coat the entire peripheral surface of from the main lip to sublip of the seal part 1 with a film 3 made of the synthetic resin material piece 14. Next, the molding is removed from the mold and made into a desired product by cutting off the extra portion.
COPYRIGHT: (C)1981,JPO&Japio
JP16592279A 1979-12-20 1979-12-20 Production of oil seal Granted JPS5688480A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16592279A JPS5688480A (en) 1979-12-20 1979-12-20 Production of oil seal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16592279A JPS5688480A (en) 1979-12-20 1979-12-20 Production of oil seal

Publications (2)

Publication Number Publication Date
JPS5688480A true JPS5688480A (en) 1981-07-17
JPS6260580B2 JPS6260580B2 (en) 1987-12-17

Family

ID=15821553

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16592279A Granted JPS5688480A (en) 1979-12-20 1979-12-20 Production of oil seal

Country Status (1)

Country Link
JP (1) JPS5688480A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62242182A (en) * 1986-04-10 1987-10-22 Nok Corp Manufacture of packing
JPH03380A (en) * 1989-05-25 1991-01-07 Arai Pump Mfg Co Ltd Oil seal and manufacture thereof
EP1239197A1 (en) * 2001-03-09 2002-09-11 Stefa S.r.l. Method of producing a dynamic sealing ring
CN102418788A (en) * 2010-09-28 2012-04-18 北京橡胶工业研究设计院 Elastic structure polytetrafluoroethylene oil seal

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62242182A (en) * 1986-04-10 1987-10-22 Nok Corp Manufacture of packing
JPH03380A (en) * 1989-05-25 1991-01-07 Arai Pump Mfg Co Ltd Oil seal and manufacture thereof
EP1239197A1 (en) * 2001-03-09 2002-09-11 Stefa S.r.l. Method of producing a dynamic sealing ring
CN102418788A (en) * 2010-09-28 2012-04-18 北京橡胶工业研究设计院 Elastic structure polytetrafluoroethylene oil seal

Also Published As

Publication number Publication date
JPS6260580B2 (en) 1987-12-17

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