US 2003/0151225 A1Published application

Transformable tricycle and variations

OwnerZenon Lopezinventor

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Abstract

An improved foldable tricycle that extends and transforms to accommadate one two or three riders. It is safe to operate easy and convenient to transform, transport and store. The tricycle has a front wheel traction with a spracket secured to the front portion of the front fork. A continios chain going from the sprocket to the front wheel The tricycle has a steering assembly which is pivotally secure to the front portion of a frame assembly. A front wheel rotatably attached to the front fork which is used for the traction, and two rear wheels rotatably secured to the rear portion of the frame assembly. Including a version with a single wheel on the rear frame and the same front end frame. When the releasable pin that is located below the seat of the frame assembly is released and pulled up, forces the rear wheels to go inwards towards the front, making it narrow and short on length for storing or transporting the tricycle. An extension frame with a seat on top is used to add the second passenger which is optional. For ease in pulling three people, the transformable is used with three full sized wheels and variable speeds with the operator sitting high on a higher front frame assembly. The passengers sitting on a detachable double seat mounted on the rear portion of the frame making it ideal to use it as a bicycle taxi.

Claims4

Dependent claims

An operator powered wheeled vehicle, comprising;

A frame including a rear portion having rear foldable hinge type brackets and a low profile foldable seat attached to an extending frame assembly and a horizontal frame extending forward of the rear section, and a front portion having an upwardly extending support with a sleeve at the upper end.
A joint used to separate the rear with the front portions of the frame to inter change different rear frame assemblies to adjust or extend and accommodate more passengers
A version with a higher operator seat and front frame assembly with bigger size front wheel drive including the wheel.
Two rear wheels rotatably attached to the foldable axle brackets and seat frame assembly.
A pin releasable lock and a mating plate to receive and used to secured the rear wheels alignment situated on the frame assembly and under the front section of the seat.
A steering assembly having a tube pivotally received in the sleeve. The tube having an upper end attached to the handle bars, and a lower end attached to the front fork
A bracket attached to and extending up from the front fork
A rotable pedal crank attached to the bracket, and a front wheel rotable attached to the front fork, and being drivable connected to the pedal crank by a continuous drive chain;
A extension of the frame assembly with a seat that fits between the rear and front portions of the frame assembly.
A version with the same front wheel drive system, and a single rotable wheel on the rear frame, the wheel being larger than the one on front is attached to two adjustable forks on the sides, the forks attached to a horizontal frame going forward and lower to the sleeve, the frame has an adjustable operator seat and height adjustable handle bars frame:.

7 more elements

Dependencies are inferred from the claim text.