Patent ID: 7992875

Claim:
A weather strip comprising an attaching base attached to an attached portion, a seal extending out from said attaching base and a fastening tool attached to the attaching base, wherein said fastening tool includes an engaging part fitted in and enagageable with an attaching hole formed in said attached portion and a retained part retained to said attaching base; said engaging part includes a rod-like axis, a flange extending from the one end thereof and a supporting portion extending outwardly and toward said flange from the outer periphery of said axis; said retained part includes a retaining piece located on the inner face side of said attaching base and a coupling portion extending in a direction crossing the longitudinal direction of said retaining piece to pass through said attaching base and coupled with said flange; said engaging part projecting from said attaching base is fit in said attaching hole so that the peripheral edge of said attaching hole is sandwiched between said flange and the tip of said supporting portion; and using an inserting means equipped with an insertion pin which is nearly cylindrical and sharp-pointed, the insertion pin is pierced into the attaching base from its bottom side so that said retaining piece is fed through the inner peripheral side of said insertion pin to the inner face side of the attaching base opposite to said bottom side, thereby attaching said fastening tool to said attaching base, wherein said coupling portion includes a retaining side reinforcing portion which is thicker than its remaining general region at its boundary to said retaining piece, and the wall thickness of said retaining side reinforcing portion increases gradually and continuously toward the end on the side of said retaining piece of said coupling portion.