Lever drive system for a scooter
US8857839B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2013 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Mar 13, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62M1/26
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A lever drive system for a scooter including a crank arm having a first distal end pivotally carried on a frame and operatively associated with a drive sprocket, wherein reciprocating movement of the crank arm causes rotation of the drive sprocket for moving a drive chain operatively associated with a wheel assembly. A footrest is disposed on the crank arm for operating the crank arm. A cam member is pivotally mounted to the frame generally adjacent the crank arm. A cam follower is carried by the crank arm engaging the cam member, wherein movement of the crank arm causes the cam follower to move along a contoured control surface of the cam member for controlling an up and down movement of the crank arm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.