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US 4,863,182 AGranted
Skate bike
OwnerJiuun F. Cherninventor
Life of this patent
Estimating the term…
Abstract
A skate bike including a frame; a spring seat saddle connected to an upper part of the frame; a wheel having a central axle connected to a lower part of the frame; a pair of pedals provided on either side of the wheel; a pair of supporting shafts pivotally provided on the frame at suitable position to define a support for feet of a passenger; and an auxiliary wheel set provided on the frame at a suitable position. The skate bike is effective as an unicycle and also effective as an ice scooter or a grass scooter when used in conjunction with a pair of ski poles.
Claims16
A skate bike comprising:
- a frame including a seat tube, two downwardly extending seat stays jointed to a lower end of said seat tube, a substantially horizontally extending U-shaped tube having two straight tube portions and a circular portion connecting an end of one straight tube portion to an end of the other straight tube portion, a bar connecting the straight tube portions of said U-shaped tube to each other at a substantially mid-length of each straight tube portion, and an arc-shaped tube with one end thereof connected to a junction of said seat tube and said two seat stays and the other end thereof connected to said bar;
- a spring seat saddle connected to an uper part of said seat tube of said frame;
- a wheel including a central axle connectable to said frame, a wheel body, a plurality of spokes, and a tire covering said wheel body, said central axle having a first protuberance substantially vertically formed on each side thereof for engaging with said seat stays of said frame and a second said protuberance substantially horizontally formed on each side thereof for engaging with said two straight tube portions of said U-shaped tube;
- a pair of pedals connected to a pair of cranks which are formed on respective sides of said central axle of said wheel;
- a cover plate provided on a front part of said U-shaped tube of said frame;
- a pair of foldable supporting shafts pivotally provided on said U-shaped tube at a position substantially below said cover plate;
- and
- an auxiliary wheel set provided on a lower side of said U-shaped tube at the position of said circular portion.
5 more elements
Dependencies are inferred from the claim text.