Patent ID: 7295093

Claim:
An internal combustion engine ignition coil apparatus comprising: a cup-shaped case; a center core disposed in said case; a primary coil and a secondary coil disposed outside said center core inside said case; a high-voltage cord having: a first end portion electrically connected to said secondary coil by means of a high voltage terminal; and a second end portion electrically connected to a spark plug; and a protective tube covering an outer peripheral surface of said high-voltage cord, an insertion aperture into which said high-voltage cord is inserted being formed in a bottom portion of said case, a rim portion projecting externally being formed so as to surround said insertion aperture, and a leading end portion of said protective tube covering and elastically engaging with said rim portion, wherein: a receiving portion having a radially-outwardly-projecting V-shaped cross-sectional shape when sectioned axially is formed on an end portion of said rim portion.