Vacuum cleaner with wheel and nozzle height adjusting mechanism

In a suction cleaner having a chassis including a front suction nozzle inlet at the bottom thereof and rear and front sets of wheels supporting such chassis for movement on a floor surface, a nozzle height adjusting mechanism comprising rear axle means including a rear axle carried by said chassis for rotatably supporting said rear set of wheels, front axle means including a central portion having a pintle shaft mounted therewith and with the chassis for enabling rocking movement of said front axle means relative said chassis, said front axle means including an actuating portion extending rearwardly from said pintle shaft and a pair of offset arms forwardly of and formed on an opposite side of said pintle shaft extending laterally outwardly thereof for journaling said front set of wheels, said offset arms being longitudinally spaced from said rear axle means, means for adjusting the position of said front wheels relative said chassis, said adjusting means including an adjustment lever journaled on said chassis adjacent said rear axle with a journaled portion thereof substantially parallel thereto and having one end angulated to engage said actuating portion so that rocking movement of said adjustment lever rocks said front axle means about said pintle shaft and thereby raises or lowers said front set of wheels relative said chassis, an operator engageable means for cooperating with a second end of said adjustment lever and extending upwardly through said chassis to a position accessible by an operator from an operating position for said suction cleaner for engagement by the foot of said operator to adjust nozzle height as said operator engageble means is rocked in a front to back direction thereby.