Battery powered model car

A remote controlled battery powered on-road scale model car of the type having a straight rear axle and a non independent rear suspension, said model car comprising:

• a chassis having a front and rear end with a longitudinal axis extending therebetween and means for mounting a row of batteries centrally along said longitudinal axis;
• a pair of remotely steerable front wheels pivotally affixed to the chassis front end;
• a pair of rear wheels interconnected by having a straight rear axle;
• a motor pod supporting the rear axle and mounting means for attaching an electric motor;
• and
• a rear suspension electrically attaching the motor pod to the chassis rear end to permit limited vertical bounce movement and limited torsional roll movement about the longitudinal axis, said rear suspension spaced sufficiently from the chassis to provide clearance for a row of batteries oriented along the longitudinal axis thereby minimizing the mass moment of inertia of the model car measured about the longitudinal axis, said rear suspension comprising a pivot means for connecting said motor pod to the chassis enabling limited free relative movement therebetween about a transverse pivot axis and allowing free pivotal movement about a longitudinal pivot axis, a roll limiting spring cooperating with the motor pod and chassis providing elastic resistance to relative torsional movement about the chassis longitudinal axis, and a telescopic strut assembly having a forward end pivotally affixed to the chassis and a rearward end pivotally affixed to the motor pod, said strut having a spring which is elastically compressed and responds to an upward pivotal movement of the motor pod about the transverse pivot axis.

A remote controlled battery powered on-road scale model car of the type having a straight rear axle and a non independent rear suspension, said model car comprising:

• a chassis having a front and rear end with a longitudinal axis extending therebetween and means for mounting a row of batteries centrally along said longitudinal axis;
• a pair of remotely steerable front wheels pivotally affixed to the chassis front end;
• a pair of rear wheels interconnected by having a straight rear axle;
• a motor pod supporting the rear axle and mounting means for attaching an electric motor;
• and
• a rear suspension elastically attaching the motor pod to the chassis rear end to permit limited vertical bounce movement and limited torsional roll movement about the longitudinal axis, said rear suspension spaced sufficiently from the chassis to provide clearance for a row of batteries oriented along the longitudinal axis thereby minimizing the mass moment of inertia of the model car measured about the longitudinal axis, said rear suspension comprising a pivot means for connecting said motor pod to the chassis enabling limited free relative movement therebetween about a transverse pivot axis, a roll limiting spring cooperating with the motor pod and chassis providing elastic resistance to relative torsional movement about the chassis longitudinal axis, and a telescopic strut assembly having a forward end pivotally affixed to the chassis and a rearward end pivotally affixed to the motor pod, said strut having a spring which is elastically compressed and responds to an upward pivotal movement of the motor pod about the transverse pivot axis, said roll limiting spring comprising a generally U-shaped leaf spring having a central portion affixed to the motor pod and two ends pivotally affixed to the chassis on opposite side of the longitudinal axis at locations longitudinally spaced forward of the central portion.