SUMMATION DISK FOR SPEEDOMETERS

摘要

The invention relates to a totalising disk used in the manufacturing of speed indicators that equip motor vehicles. According to the invention, the disk consists of a plastic ring, engraved on its circumference, and two semi-disks (a wheel semi-disk and a cam semi-disk) of pressed steel strip. The assembling of these parts in a rigid and compact unit is performed through the setting of the two semi-disks after the engraved ring has been centred between them.