To provide a new connecting rod which uses the same machining equipment as an existing one, is reduced in manufacturing cost and improved in productivity.
A rod body 14 and a cap 15 are pre-machined respectively, while protrusions 20R and 20C on both sides in a width direction of big ends 12R and 12C (S1) are held with a predetermined jig 21. Next, while both 14 and 15 are temporarily fixed with a bolt 17, the protrusion 20R of the big end 12R on the rod body side, and the protrusion 20C in the upper part 27 of the cap 15, are cut (S2). Both 14 and 15 are once disassembled (S3), and are again temporarily fixed, and then a big end hole 12A is finish-machined (S4). In an assembling step S5, the rod body 14 is inserted in a cylinder bore of a cylinder block from the big end side, and the rod body 14 and the cap 15 are fastened by a bolt 17, with a crank pin held therebetween.
FUJIOKA YUKIHIRO
OHIRA SHINYA
| JP5263055B2 | 2013-08-14 | |||
| JPS62110612U | 1987-07-14 | |||
| JPS63210409A | 1988-09-01 |
Hiromichi Kobayashi
Tomioka Kiyoshi