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Title:
CONNECTING ROD, METHOD OF FASTENING CAP OF CONNECTING ROD, AND CONNECTING ROD BOLT
Document Type and Number:
Japanese Patent JP2008128447
Kind Code:
A
Abstract:

To provide a connecting rod which suitably avoids concentration of stress to the inner circumferential surface of a female screw hole while ensuring high flexibility of design as an internal combustion engine.

In the connecting rod, a rod body 10 has shoulder parts 10a circularly changed in shape from a minor diameter part 13 supported by a piston 22 to a major diameter part 14 grasping a crankshaft 23 in cooperation with a cap 11. Both the shoulder parts 10a have female screw holes 10b, and the cap 11 having insert holes 11a provided in parts corresponding to the female screw holes 10b is fastened to the rod body 10 through bolts 12 inserted through the insert holes 11a and screwed into the female screw holes 10b. In this state, the rod body 10 has a surface shape in which the female screw holes 10b of the rod body 10 are closed by the bolts 12 over the whole area, and front end parts 12a of the bolts 12 are flush with the surface of the shoulder parts 10a of the rod body 10 circularly changed in shape.


Inventors:
YASUHARA JUNICHI
Application Number:
JP2006317374A
Publication Date:
June 05, 2008
Filing Date:
November 24, 2006
Export Citation:
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Assignee:
TOYOTA MOTOR CORP
International Classes:
F16C7/02
Attorney, Agent or Firm:
Hironobu Onda
Makoto Onda