MOTORISED SURF-BOARD,SKATEBOARD ETC

摘要

Motorised platform craft such as a motorised skateboard or surf-board incorporating a "deadman's" handle device to prevent propulsion of the board by a propulsion unit thereof if the rider thereof falls from or otherwise become separated from the craft. Preferably the device comprises a fluid (e.g. air-) containing sac (8) mounted on a hand-operable throttle control (10) arranged to actuate a pressure switch (4) when grasped by the rider's hand, which switch (4) is adapted only then to permit propulsion of the craft by the propulsion unit (2).