| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a counterweight for an automobile wheel and its manufacturing method using an inexpensive raw material, with excellent safety and reliability. <P>SOLUTION: The counterweight for the automobile wheel includes a weight 2 of the counterweight and a spring hooking plate 1 connected thereto. At least one of a protrusion 3 is provided on the weight 2 of the counterweight. The spring hooking plate 1 is connected to the weight 2 of the counterweight by the protrusion 3. The manufacturing method includes a process for forming by cold forging, and a process for fixing the weight 2 of the counterweight to the spring hooking plate 1 by riveting. The counterweight of this invention has a merit that the price of the raw material is low, and the human body or the environment is not damaged compared to the case where the counterweight for the automobile wheel is formed by non-ferrous material die-cast molding wherein zinc or lead is used. <P>COPYRIGHT: (C)2008,JPO&INPIT |
