JPS5773218A - Cast engine crankshaft - Google Patents

Cast engine crankshaft

Info

Publication number
JPS5773218A
JPS5773218A JP14737180A JP14737180A JPS5773218A JP S5773218 A JPS5773218 A JP S5773218A JP 14737180 A JP14737180 A JP 14737180A JP 14737180 A JP14737180 A JP 14737180A JP S5773218 A JPS5773218 A JP S5773218A
Authority
JP
Japan
Prior art keywords
pin part
crankshaft
pin
engine crankshaft
center
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
JP14737180A
Other languages
Japanese (ja)
Other versions
JPS5828446B2 (en
Inventor
Shigezo Fukuda
Shoichi Yoshino
Yasuo Matsutani
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.)
Kubota Corp
Original Assignee
Kubota 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 Kubota Corp filed Critical Kubota Corp
Priority to JP14737180A priority Critical patent/JPS5828446B2/en
Publication of JPS5773218A publication Critical patent/JPS5773218A/en
Publication of JPS5828446B2 publication Critical patent/JPS5828446B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

PURPOSE: To reduce an engine crankshaft to light weight, and to improve it strength and facilitate manufacturing it by forming an indentation of a fixed size at a specific position of a coupling part of a pin part with a crankweb, and a hollow part with a predetermined diameter in the pin part along the direction of a crankshaft with a crankshaft casting sandmold simultaneously.
CONSTITUTION: A web surface S adjacent to a pin part 3 that is near a center line P1 of a crankshaft in a coupling part of the pin part 3 and a crankweb 2 is provided with an indented part A having a depth l which is 0.2W0.5 times of the outside dia. D of the pin part 3 and being in a range between two lines inclining 30W45deg. to both sides of a line Q connecting the center P of the pin part and the center P1 of the journal. The pin part 3 is provided with hollow part B having the maximum diameter d which is 0.5W0.7 times of the outside diameter D of the pin part 3, which passes through the pin part 3 in the direction of the cord P. The indented part A and the hollow part B are formed simultaneously with casting by a sandmold of a crankshaft. Thus, an engine crankshaft which is light and improved in its strength can be easily manufactured.
COPYRIGHT: (C)1982,JPO&Japio
JP14737180A 1980-10-20 1980-10-20 Cast engine crankshaft Expired JPS5828446B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14737180A JPS5828446B2 (en) 1980-10-20 1980-10-20 Cast engine crankshaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14737180A JPS5828446B2 (en) 1980-10-20 1980-10-20 Cast engine crankshaft

Publications (2)

Publication Number Publication Date
JPS5773218A true JPS5773218A (en) 1982-05-07
JPS5828446B2 JPS5828446B2 (en) 1983-06-16

Family

ID=15428710

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14737180A Expired JPS5828446B2 (en) 1980-10-20 1980-10-20 Cast engine crankshaft

Country Status (1)

Country Link
JP (1) JPS5828446B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61137110U (en) * 1985-02-16 1986-08-26
JP2015124852A (en) * 2013-12-27 2015-07-06 本田技研工業株式会社 Internal combustion engine crankshaft structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61137110U (en) * 1985-02-16 1986-08-26
JPH0236970Y2 (en) * 1985-02-16 1990-10-08
JP2015124852A (en) * 2013-12-27 2015-07-06 本田技研工業株式会社 Internal combustion engine crankshaft structure

Also Published As

Publication number Publication date
JPS5828446B2 (en) 1983-06-16

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