Patent ID: 11958155
Assignee: ANDREAS STIHL AG & CO. KG
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 12:
13. A portable handheld work apparatus comprising:
a work tool;
a drive motor for driving said work tool;
a handle defining a longitudinal axis;
an actuating lever for operating said drive motor;
a blocking lever for said actuating lever;
said blocking lever defining a rotational axis and being journalled to pivot about said rotational axis;
said work apparatus defining a longitudinal plane containing said longitudinal axis of said handle therein;
said longitudinal plane running parallel to said rotational axis of said blocking lever;
said blocking lever being pivotable into a disable position wherein said actuating lever is blocked and into at least one enable position wherein said actuating lever is enabled for actuation;
a spring unit for said blocking lever;
said blocking lever, starting from said disable position, being pivotable in a first pivot direction about said rotational axis and being pivotable in a second pivot direction about said rotational axis;
said second pivot direction being opposite to said first pivot direction;
said spring unit having a first spring leg and a second spring leg; and,
said spring unit being so configured that, with a deflection of said blocking lever in said first pivot direction, said first spring leg, lying against said blocking lever, effects a restoring force on said blocking lever in a direction toward said disable position.