A convertible bicycle has separable front and rear wheel units. The convertible bicycle can operate in individual or in tandem mode as a tricycle unit. The rear wheel unit has a vertical interlocking gear which can interface with a frontal interlocking gear of the frontal wheel unit. The front wheel
A convertible bicycle has separable front and rear wheel units. The convertible bicycle can operate in individual or in tandem mode as a tricycle unit. The rear wheel unit has a vertical interlocking gear which can interface with a frontal interlocking gear of the frontal wheel unit. The front wheel unit of an auxiliary bicycle can be detached and the remaining rear wheel unit attached to the rear wheel unit of another bicycle in order to form a tandem tricycle.
대표청구항▼
1. A convertible bicycle, comprising: a front wheel unit, a rear wheel unit, a body frame, a plurality of pedals, a seat, a vertical handle rod, and handlebars, the front wheel unit being connected to the rear wheel unit via the body frame, the plurality of pedals and the seat being disposed on the
1. A convertible bicycle, comprising: a front wheel unit, a rear wheel unit, a body frame, a plurality of pedals, a seat, a vertical handle rod, and handlebars, the front wheel unit being connected to the rear wheel unit via the body frame, the plurality of pedals and the seat being disposed on the body frame, and the vertical handle rod being disposed on the front wheel unit;the vertical handle rod having a top end, a bottom end, an upper rod hole, a lower rod hole, and a canal hole;a vertical frame tube, the vertical frame tube being cylindrical and having a top end, a bottom end, an outer wall, and an inner canal, the vertical frame tube being attached to the body frame by the outer wall, the vertical handle rod passes through the inner canal of the vertical frame tube;an upper connector ring with a screw hole, and a lower connector ring with a screw hole, the upper connector ring is disposed on the top end of the vertical frame tube and the lower connector ring is disposed on the bottom end of the vertical frame tube,wherein the front wheel unit comprises a front wheel and a frontal female interlocking gear; and the rear wheel unit comprises a rear wheel, a rear wheel axle, a gear train, and a rear female interlocking gear;with the front wheel unit removed, the vertical handle rod interfaces with the rear female interlocking gear of another bicycle to form a tandem tricycle,the handlebars are connected to the top end of the vertical handle rod and the frontal female interlocking gear is connected to the bottom end of the vertical handle rod. 2. The convertible bicycle of claim 1, wherein the body frame is triangular in shape and the seat is disposed on an upper vertex of the body frame. 3. The convertible bicycle of claim 1, further comprising: a vertical supporting arch attached to the rear wheel axle, the vertical supporting arch having two supports and a level arch; anda rear connecting beam with a front end and a back end attached to the level arch of the vertical supporting arch, the back end of the rear connecting beam being attached to the rear female interlocking gear of the rear wheel unit, the front end of the rear connecting beam being attached to the body frame. 4. The convertible bicycle of claim 3, further comprising: the rear female interlocking gear having a canal and a hinge, wherein the canal further comprises a hollow cylindrical column and a screw hole, the hinge allowing the rear female interlocking gear to flex vertically relative to the rear connecting beam. 5. The convertible bicycle of claim 4, wherein the tandem bicycle is formed by removing the front wheel unit of the bicycle and inserting the vertical handle rod through the canal of the rear female interlocking gear of the other bicycle, the vertical handle rod being fastened into place by a thumb screw passing through the screw hole of the canal of the rear female interlocking gear and a canal hole of the vertical handle rod. 6. The convertible bicycle of claim 1, wherein the vertical handle rod passes through the upper connector ring and the lower connector ring, and is fastened in place by a plurality of screws, one screw passing through the upper rod hole of the vertical handle rod and the screw hole of the upper connector ring, and another screw passing through the lower rod hole of the vertical handle rod and the screw hole of the lower connector ring. 7. The convertible bicycle of claim 1, wherein the frontal female interlocking gear comprises a screw hole and a canal, and the vertical handle rod is attached to the frontal female interlocking gear by a thumb screw inserted through the canal and the canal hole. 8. The convertible bicycle of claim 1, wherein the tandem tricycle has two independent gear trains.
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이 특허에 인용된 특허 (7)
Larson Scott M. (1975 Brandon Cir. Anaheim CA 92807), Apparatus and methodology for temporarily converting single bicycles into a bicycle built for two.
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