Komatsu America Corp.

Bradley Roper

Jeffrey Arnold Seiwell

Yousuke Yabe

James McMullen

Clint E Rogers

Joseph S Peschong

Peter J Hinshaw

A vehicle may include a chassis, a motor, a pantograph, and a pantograph support structure. The pantograph may engage overhead wires and transmit electrical current to the motor. The pantograph support structure may include first and second leg frames, a lateral frame, and first and second bearing mount assemblies. The leg frames may include lower ends attached to the chassis. The lateral frame may be supported by the leg frames and disposed at upper ends of the leg frames. The lateral frame may support the pantograph. The first bearing mount assembly may be attached to the lower end of the first leg frame and may connect the first leg frame to the chassis. The second bearing mount assembly may be attached to the lower end of the second leg frame and may connect the second leg frame to the chassis.

Vehicle with bearing-mounted pantograph support structure

A heavy-duty vehicle may include a vehicle frame, a plurality of rear-wheel assemblies, and a plurality of front-wheel assemblies. The wheel assemblies are mounted to the vehicle frame. Each of the front-wheel assemblies may include a rim, a spindle, a brake assembly, a motor, and a transmission assembly. The spindle may be at least partially disposed within the rim. The brake assembly may be disposed within the rim and may extend around the spindle. The motor may be disposed within the cavity in the spindle. At least a portion of the motor is disposed between first and second axial ends of the rim. The transmission assembly may be disposed within the rim. The transmission assembly may transmit rotary motion of the motor to the rim to rotate the rim relative to the spindle.

Vehicle with front-wheel-assist system

Growing community of inventors

Dunlap, IL, United States of America

Bradley Roper