WINDOWS FOR AUTOMOBILES OR THE LIKE, AND METHOD OF MANUFACTURING THE SAME

摘要

A window for automobiles or the like, including a frame member (2) which is composed of a thermoplastic synthetic resin material and formed integrally with a window plate (1). The frame member (2) includes a substantially U-shaped cross-sectional portion formed of lip (2a, 2b) and web (2d) sections which are spaced from and opposed to each other on outer and rear surfaces of the window plate, respectively, and connected with each other by a bridge section (2c) having a continuous hollow inner space (3) therein. The frame member (2) is formed by injecting into a mold cavity a relatively small amount, as compared with the volume of the mold cavity, of molten thermoplastic synthetic resin material, and by injecting compressed gas into the resin material to urge the resin material against inner surfaces of the mold defining the cavity.