TANDEM BICYCLE

摘要

A tandem bicycle is provided that have a shortened wheel base between the front and rear wheels that allows a rider to ride comfortably alone from either the front or rear seats, or with a passenger in the front seat. The frame length of the inventive tandem bicycle is comparable to a standard single seat bicycle. The reduced proximity between riders, and the ability to steer for both the front or rear seats on the inventive tandem bicycle improves the level of participation and interaction between the riders. The wheelbase is reduced by bringing the front wheel closer to the front seat position. A reduced diameter front wheel is provided to accommodate rotational clearance of the front pedals thereby allowing two riders to ride on bicycle frame with a length common to single rider bicycle.

主权项

1. A tandem bicycle comprising:
a front wheel and a back wheel; a frame suspended between said front wheel and said back wheel, said frame including a front seat tube member and a back seat tube member located at predetermined positions thereon in relative proximity to said front and back wheels; a head tube member located at a front end of said tandem bicycle in mechanical communication with a handle bar and a steerable fork, said fork movably connected to said front wheel; a front seat and a back seat removably and adjustably attached to said respective front and back seat tube members; a power transmission adapted to be operable by a first and a second rider either individually or together; wherein said handle bar is movably connected to said head tube member of said frame and is adapted to be manipulated by either at least one of said first or second riders sitting on said front or back seat; and wherein a first distance between the head tube member and front seat tube member is less than half the length of a second distance between said rear seat tube member and said front seat tube member.