| 摘要 |
PURPOSE: To obtain the pulser ring made by cold forging in the tooth-profile shape, which can be formed by the cold forging and can secure the required output voltage, and to use the ring in the tachometer or the like for measuring the rotating speed of the wheel in the anti-lock brake device (ABS) of an automobile. CONSTITUTION: This pulser ring 1 has many teeth 2 aligned in the gear shape. Each tooth 2 is molded by cold forging. The shape of the tooth profile of each tooth 2 has the trapezoid shape, wherein the tooth angleθis 5 deg.-15 deg., the tooth height (h) is 1-3mm and the tooth thickness B is 1-2mm.
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