JPS56119633A - Manufacture of crank shaft - Google Patents

Manufacture of crank shaft

Info

Publication number
JPS56119633A
JPS56119633A JP2115480A JP2115480A JPS56119633A JP S56119633 A JPS56119633 A JP S56119633A JP 2115480 A JP2115480 A JP 2115480A JP 2115480 A JP2115480 A JP 2115480A JP S56119633 A JPS56119633 A JP S56119633A
Authority
JP
Japan
Prior art keywords
cylinder
discs
bulge
blank pipe
pipe
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
JP2115480A
Other languages
Japanese (ja)
Inventor
Masanobu Nakamura
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP2115480A priority Critical patent/JPS56119633A/en
Publication of JPS56119633A publication Critical patent/JPS56119633A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To facilitate the manufacture of crank shaft through joining the driving disc and cylindrical section with expanding a diameter of the blank pipe, by performing a bulge working after the disc and cylinder are loosely fitted at important position of the blank pipe which has been bent to a prescribed form.
CONSTITUTION: Driving discs 4, 4 and cylinders 6, 6 made of special steel are loosely fitted respectively at prescribed position on the blank pipe made of normal steel which has already been bent to a similar form to a shaft cylinder 7 and has a diameter slightly smaller than the discs and cylinders. Then, these are put in a bulge pattern and the bulge working is performed by press-introducing high pressure liquid in the pipe through an introducing pipe 3. Whereupon, the blank pipe expands and pushes the inside surfaces of the bulge pattern 1 and each eccentric hole 5 and each cylinder 6, driving discs 4 and cylinder 6 of bearing section are jointed and simultaneously both sides of discs 4 and cylinder 6 are projected in the diametric direction to tightly maintain the discs 4 and cylinder 6 by the aid of swelled-up rings 8.
COPYRIGHT: (C)1981,JPO&Japio
JP2115480A 1980-02-22 1980-02-22 Manufacture of crank shaft Pending JPS56119633A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2115480A JPS56119633A (en) 1980-02-22 1980-02-22 Manufacture of crank shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2115480A JPS56119633A (en) 1980-02-22 1980-02-22 Manufacture of crank shaft

Publications (1)

Publication Number Publication Date
JPS56119633A true JPS56119633A (en) 1981-09-19

Family

ID=12046979

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2115480A Pending JPS56119633A (en) 1980-02-22 1980-02-22 Manufacture of crank shaft

Country Status (1)

Country Link
JP (1) JPS56119633A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01289517A (en) * 1987-11-05 1989-11-21 Emitec G Fuer Emissions Technol Mbh Method for producing assembling type crank shaft by expanding sleeve provided to divided shaft
JPH02180307A (en) * 1988-11-03 1990-07-13 Emitec G Fuer Emissions Technol Mbh Fitting axis

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01289517A (en) * 1987-11-05 1989-11-21 Emitec G Fuer Emissions Technol Mbh Method for producing assembling type crank shaft by expanding sleeve provided to divided shaft
JPH0325245B2 (en) * 1987-11-05 1991-04-05 Emitec Emissionstechnologie
JPH02180307A (en) * 1988-11-03 1990-07-13 Emitec G Fuer Emissions Technol Mbh Fitting axis

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