| 摘要 |
PROBLEM TO BE SOLVED: To provide an ignition coil, wherein avoiding a secondary spool from directly touching a rubber buffering member, an injection-mold material is surely filled over the entire periphery. SOLUTION: On an inner surface on a high-voltage side of a secondary spool 4, a high-voltage side positioning means 17 which concentrically positions a buffering member 15 with a gap against it is provided, while, on an outer surface of a low-voltage side of the buffering member 15, a low-voltage side positioning member 18, which concentrically positions the secondary spool 4 with a clearance against it is provided. The buffering member 15 is inserted in the secondary spool 4 to form a clearance, over the entire periphery between the secondary spool 4 and the buffering member 15. Filling an injection mold material allows a clearance to be filled with it, so that the contact between the secondary spool 4 and the buffering member 15 is avoided, and environmental stress cracks will not occur. |
