To provide a connecting rod structure capable of improving lubrication at a periphery of a piston pin.
In the connecting rod structure 1 having a small end portion 3 of a connecting rod connected with a piston 9 by arranging first and second end portions 3a and 3b so as to hold a pin boss 10 formed on the piston 9 and by inserting a piston pin 7 into a pin hole 12 arranged in the pin boss 10 and pin holes 5a and 5b respectively arranged in the first and second end portions 3a and 3b in the small end portion 3 of the connecting rod having the first and second end portions 3a and 3b, the connecting rod structure, in which lubricating oil leading means 6a, 6b, 13a, and 13b are arranged on at least one of the first and second end portions 3a and 3b, is provided therein. Lubricating oil is effectively led and supplied to the piston pin 7 by the lubricating oil leading means arranged on the end portions 3a and 3b in the connecting rod, and lubrication in the vicinity of the piston pin is improved.
SUZUKI KOICHI
SUZUKI TAKAO
TOKORO NORIYUKI
TOYOTA MOTOR CORP