| 摘要 |
An appliance knob has a polymeric body, which is molded, and a metal cup, which is made by stamping and drawing a metal sheet or a metal strip. The polymeric body has a central boss, which has an end face, a cylindrical wall, and an annular recess encompassing the central boss and having an annular floor. The cylindrical wall adjoins the annular floor. The metal cup, which is adapted to fit over the central boss, has a circular plate covering the end face top of the central boss and a cylindrical skirt encompassing the cylindrical wall of the central boss. The cylindrical skirt is unitary with the circular plate. The metal cup is secured to the polymeric body via two unitary tabs, which project through associated slots in the annular floor and coact with the polymeric body, as well as adhesively.
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