Patent ID: 8434382
Filing Date: 2013-05-07
Classification: B62M,Y10T

Abstract:
1. A speed adjusting device of a speed changer being used in a middle speed changer and a rear speed changer of a bicycle, and a ratchet assembly, the middle speed changer, and the rear changer being connected together and comprising: a base including a first hole fixed on a central portion thereof to insert a first central spindle, and including a holder and a fitting member both of which extend from a front end of the base to connect with an adjusting loop, and the fitting member includes a ring member fitted thereon; an adjusting loop including a plurality of first screw bores to lock a front cover and a second hole disposed on a central position thereof to receive the first ratchet, the first actuating lever, the ring member, and the hook, the second hole including a groove fixed at a suitable position of an outer side thereof; a front cover including a first orifice formed on a central portion thereof to insert a first screw so that the returning spring is hooked with the first screw and is fixed in the rear speed changer such that the front cover, the adjusting loop, the holder are pressed on the rear speed changer.