Machine element or mechanism – Elements – Pitmans and connecting rods
Patent
1996-11-15
1999-01-26
Luong, Vinh T.
Machine element or mechanism
Elements
Pitmans and connecting rods
74579R, G05G 100
Patent
active
058627197
ABSTRACT:
A steel connecting rod that is used mainly in a small-size internal combustion engine includes generally elongated first and second connecting rod forming plates (2) prepared from a steel plate by the use of a press work and having bearing holes (4, 5) defined in opposite ends of each of the first and second connecting rod forming plates (2) in the form of burrings (8, 9). The first and second connecting rod forming plates (2) are joined in face-to-face relation with each other. Bearings (10) are press-fitted into the bearing holes (4, 5) so as to straddle between the burrings (8, 9) at each end of the first and second connecting rod forming plates (2). The height (a) of a corner (11) formed at a radially inner base end of each burring (8, 9) is chosen to be smaller than the plate thickness (t) of each of the first and second connecting rod forming plates (2). Each of the first and second connecting rod forming plates (2) is made from a steel plate that is not heat-treated.
REFERENCES:
patent: 4369742 (1983-01-01), Everts
Patent Abstract of Japan: Publication # JP60130442; Appl'n. # JP830238469; vol. 9; No. 290, Jul. 11, 1985.
Patent Abstract of Japan: Pub. # JP57173610; Appl. # JP810058208; vol. 7; No. 16, Oct. 26, 1982.
Luong Vinh T.
NTN Corporation
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