Switch-brake interlock for chain saw.

摘要: A shut-off device (104) controlling the operation of motive means such as an electric motor which powers a tool chain saw (12) having housing (14) with brake (34) therein operative to stop (12). The includes switch (54) biased off and shiftable on. pivotable or trigger (72) is shifted toward but remains out contact (54). link (92) caused shift responsive when becomes operative, otherwise disposed intermediate permit movement actuate However, on actuation removed from path motion between thereby restore "off" position. Once it cannot be reinserted until after released. may include fulcrum (66) and/or post (68) guide movement. bend (102) limited deflection thereof, have second holding member (112) positioning (34).