| 摘要 |
A heavy duty vehicle hubcap preferably made from a plastic material and having a sidewall, an end wall with a transparent window insert formed therein, and further including a radial mounting flange. The mounting flange is reinforced with a mounting ring insert made from a rigid, preferably metal body. The mounting flange and the ring insert include radially elongated bosses and openings. The hubcap also includes an access port formed in the hubcap body sidewall and a plug removably positioned in liquid tight relation within the access port. Preferably, the hubcap is vented to permit passage of gas and vapor therethrough without permitting liquid to pass into the sealed region. An insert molding method is described wherein the ring insert and the window are separately formed and then bonded to the hubcap body. |
