Hand lever device

A hand lever device disposed in the vicinity of a grip of a handle of a working machine comprising a rotating member driven by an internal combustion engine provided with a throttle valve, said throttle valve being biased to a setting that will allow said engine to operate at an idle condition so that when a throttle cable connected thereto is pulled from such a position, the throttle valve begins to open to a greater degree,

• said hand lever device comprising a main lever and a sub-lever which are each pivotally operated, said sub lever being attached to a wind-up tractive member mounted within a housing, a throttle cable interconnected between said throttle valve and said wind-up tractive member, one end portion of said throttle cable being wound up on and fixed to said wind-up tractive member, a torsion coil spring having one end fixed circumferentially over said wind-up tractive member, the other end of said torsion coil spring being operatively attached to said main lever, whereby said wind-up tractive member is held immobilized at any pivotally operated position against the tractive force of said throttle cable by frictional force between said wind-up tractive member and said torsion coil spring generated by drawing said other end of said torsion coil spring by said main lever.