Three-wheeled scooter with reciprocating treadle drive
US5110148A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 1990 |
| Grant date | May 5, 1992 |
| Priority date | — |
| Expiry date | Dec 14, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62K9/02
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A three-wheeled scooter includes a reciprocating treadle drive which a rider may use to propel the scooter in either the forward or rearward direction. The treadle drive includes a pair of treadles having their rear ends mounted to crank portions of a rear crank drive axle and their forward ends supported by rollers from a bar track having a generally flattened portion therein along with an inclined portion. Movement is achieved by a rider's shifting of his weight alternately from one treadle to the other as each treadle rotates into a driving orientation. The treadle drive is characterized by maintaining a driving relationship between at least one treadle and the crank axle at all times to thereby eliminate any "dead spots".
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.