Patent ID: 6374690
Filing Date: 2002-04-23
Classification: F16H,Y10T

Abstract:
A gearshift for a transmission which incorporates a plurality of speed change gear trains, a plurality of clutch means to select said gear trains for power transmission and a plurality of shift forks to activate said clutch means, said gearshift capable of selectively conveying a force applied by a shift lever to said shift forks to achieve a gear change; wherein:said gearshift comprises a plurality of shifting force conveying linkages, each of which conveys the force applied by said shift lever to a corresponding one of said shift forks, at least two of said shifting force conveying linkages each comprising a rocking lever, which functions to reverse a direction of the force applied by said shift lever; and said rocking levers in plurality are disposed on a common pivot, such that each rocking lever can swing independently thereon; some of said shifting force conveying linkages in plurality, which branch out, further comprise shift fork support members, which are supported axially movably by said transmission housing, at least one shift fork and shift piece being fixed on each of said shift fork support members; remainders of said shifting force conveying linkages in plurality, which branch out, further comprise shift members and additional shift fork support members, said additional shift members and said shift fork support members being supported axially movably by said transmission housing, at least one shift fork being fixed on each of said additional shift fork support members, and at least one shift piece being fixed on each of said shift members; a first end of each rocking lever engages at least one of said shift members and a second end of each rocking lever engages at least one of said additional shift fork support members; and said selector arm selectively engages said shift pieces.