Twist grip control for electric scooter
Vivian is dependent on his electric scooter for mobility, but arthritis in his hands meant that he was unable to maintain continuous pressure on the thumb-operated control lever.
A gear-change twist grip from a bicycle was modified to remove the 10-position notches and the internal diameter increased to give greater travel on the control wire. This was then fitted in place of the normal hand grip, and the wire led over a semi-circular block attached to the throttle rocker bar. The wire terminated in a spring, allowing the rocker to be thumb-operated in the usual way when reverse was required.
Vivian found the twist grip much easier and more controllable than the rocker lever, and is now able to embark on long trips on his scooter without fatigue in his hands.
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