MUSCULAR POWER-OPERATED VEHICLE Russian patent published in 2002 - IPC

FIELD: transport engineering; tricycles. SUBSTANCE: invention relates to frame of tricycle providing suspension of rear wheel axle. Intermediate member 3 is placed between two parts of frame inside these parts. Member 3 has horizontal axle 5 and vertical axle 6 providing articulation of frame parts. Shock absorber of vertical axle 6 provided thrusting of rear wheel, and shock absorber of horizontal axle 5 provides damping of rear wheel. Horizontal hinge joint of two parts of frame can be locked relative to vertical axle 6 by means of lock 8, 9. EFFECT: improved maneuverability. 2 cl, 3 dwg