Motor vehicles – Special wheel base – Rider propulsion with additional source of power – e.g.,...
Patent
1997-04-16
1998-12-15
Johnson, Brian L.
Motor vehicles
Special wheel base
Rider propulsion with additional source of power, e.g.,...
280 87041, 280 8705, B62K 1100
Patent
active
058486607
ABSTRACT:
An improved lightweight, durable collapsible scooter which is safe to operate and is easy and convenient to collapse, transport and store. The scooter has a steering assembly which is pivotally secured to the front portion of a frame assembly. A front wheel is rotably secured to the steering assembly and a rear wheel is rotably secured to the rear portion of the frame assembly. A hydraulic gas spring strut is pivotally secured at one end to the steering assembly and at the other end to the frame assembly. When extended, the collapsible strut releasably locks the steering assembly in an upright operating position for operation by a rider, and when the strut is in a compressed or collapsed position, it releasably locks the steering assembly in a position generally parallel to and adjacent to the frame assembly, for storing or transporting the scooter. For ease in carrying the collapsed scooter, carrying handles are provided to permit the scooter to be carried in a balanced, horizontal position, and the collapsed scooter may also be pushed or pulled by holding onto a handlebar and rolling the scooter on the front wheel. When the scooter is stored, it remains in a relatively compact, stable and horizontal position. In operation a motorized version of the scooter provides a motor controller which provides a push-and-go feature which enables a rider, when first starting to operate the scooter, to push the scooter and establish his or her balance before the motor is activated at a pre-determined rotational rate.
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Cuff Michael
Hendrickson Jay P.
Johnson Brian L.
Zap Power Systems
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