公开(公告)号：US3415539A

公开(公告)日：1968-12-10

申请号：US61392767

申请日：1967-02-03

Applicant: GERALD K. STEVENS

Inventor： STEVENS GERALD K

IPC: B62K9/02 ,  B62K27/02

CPC classification number: B62K27/00 ,  B62K9/02

公开(公告)号：US3595600A

公开(公告)日：1971-07-27

申请号：US3595600D

申请日：1968-10-04

Applicant: GERALD K STEVENS

Inventor： STEVENS GERALD K

IPC: B62K27/02 ,  B62K27/00

CPC classification number: B62K27/00

Abstract: The specification discloses axle extension apparatus for wheeled vehicle apparatus which, in one preferred form, may comprise a main wheeled vehicle and an auxiliary wheeled vehicle adapted to be attached so as to have a main axle of the main vehicle transversely substantially coaxially aligned with an extension axle of an auxiliary vehicle for simultaneous rolling movement and in a manner which is substantially rigid in a horizontal plane but provides vertical flexibility so as to allow the twowheeled vehicles to have a limited extent of relative vertical pivotal movement with respect to each other as they simultaneously ride along an elevationally irregular terrain. In one preferred form, the main vehicle may comprise a tricycle and the auxiliary vehicle may comprise a tricycle sidecar, and connection and coupling frame means may also be provided connecting same together in a manner providing rigidity in a horizontal plane but limited vertical flexibility for the abovementioned purposes. The apparatus is such a to make it possible to attach such an extension axle and tricycle sidecar to any tricycle either at the time of manufacture or subsequently.