190 



HANDBOOK OF MECHANICAL DESIGN 



SHIFTING MECHANISMS FOR GEARS AND CLUTCHES 



, , Shiff coflar 

 ^W' wiih -frunnions 



^Nuifor end play 

 odjusfmeni' 



Fig. 357. 



Adjusioble 

 ^3 nuf for 

 assembly 



Fig. 358. 



Reclongular 

 bronze shoe 



Eccentric-'^ 

 crank /h- fh 

 fegrol on 

 shaft 



Fig. 359. 



Screw aoljusfs clearance 

 between clutch d/sks 



ving 



Over running 

 clutch drives d/sk 



r Driven 

 . disk 



I Thrust bearing 



\ Positioning nut 



[Shifting lever attached to this shaft 

 ,^ Gear segment ^ 



/H f-*i I [Shifting fork, 



Fig. 360. 



■ Rack teeth In hub engage ' 

 gear segment 



Fig. 361. 



Shifting 

 rod^ 



Gear Turned grooves 

 n I ^position rods 



^ Cffl^;>. 



Fork 



Screw fastens' 

 fork to shift rod 



''Slot position ^Spring plunger 

 screw 



Fig. 362. 



<-Shaft cutaway for clearance 

 /Shifting Fork 



Fig. 363. 



