FRAMHJULSUPPHAENGNINGSSYSTEM

摘要

A heavy duty front suspension system especially for passenger buses includes square rubber torque springs supported by a spring frame assembly. The spring support frame includes a lower support having transverse reinforcement gusset plates extending at an angle from the frame assembly to enable the frame and torque spring support the loads transmitted by the bus and to withstand the variations in the road surface. The torque spring includes a hexagonal block on each end of the tubular shaft for removably mounting an adjustment lever to transmit the tension stresses to the spring. Each adjustment level has an eyelet connected to adjustable tension bars extending to a mounting bases which are anchored to the structural cross members of the bus body. A yoke element is firmly fixed to a trunnion that forms part of the spring frame assembly. A lower end of the yoke has an extension with a conical hole to fasten a shock absorber assembly. The upper end of the yoke is joined with an upper control arm by means of a lower arm bolt that goes through orifices in such yoke and the arm joint. A central transverse orifice is provided in the arm joint to support the trunnion of the wheel. The upper end of the joint is connected with the upper command arm in the form of an "H". The opposite end of the control arm is joined to an upper support by rubber torque bushings. The upper supports are fixed to the side rail of the bus by a mounting plate.