发明名称 Handheld work apparatus having a drive motor for driving a work tool and method for operating said apparatus
摘要 A handheld work apparatus has a drive motor for driving a tool, an operating element for operating the drive motor, a first inhibiting unit and a second inhibiting unit. Each inhibiting unit has a disable state and an enable state. The operating element is inhibited for operating the drive motor when at least one of the inhibiting units is in its disable state. The work apparatus further has a locking device which locks the first inhibiting unit in its enable state if the second inhibiting unit is in its enable state. A method for operating the work apparatus provides that the first inhibiting unit is locked in its enable state when the first inhibiting unit and the second inhibiting unit are situated in their enable states at the same time.
申请公布号 US9636792(B2) 申请公布日期 2017.05.02
申请号 US201314138974 申请日期 2013.12.23
申请人 Andreas Stihl AG & Co. KG 发明人 Mandalka Markus;Heinzelmann Georg;Kaupp Klaus
分类号 B25B21/02;E21B7/00;B23Q11/00;B25F5/02;B27B17/00;B25F5/00 主分类号 B25B21/02
代理机构 Walter Ottesen, P.A. 代理人 Walter Ottesen, P.A.
主权项 1. A handheld work apparatus comprising: a work tool; a drive motor for driving said work tool; an operating element configured to permit an operator to operate said drive motor via said operating element; a first inhibiting unit; a first actuating element configured to shift said first inhibiting unit from a disabling state of said first inhibiting unit into an enabling state thereof in response to an actuation of said first actuating element by the operator wherein said operating element is blocked when said first inhibiting unit is in said disabling state thereof and wherein said operating element is unblocked to permit operation of said drive motor via said operating element when said first inhibiting unit is in said enabling state thereof; a second inhibiting unit; a second actuating element configured to shift said second inhibiting unit from a disabling state of said second inhibiting unit into an enabling state thereof in response to an actuation of said second actuating element by the operator wherein said operating element is blocked when said second inhibiting unit is in said disabling state thereof and wherein said operating element is unblocked to permit operation of said drive motor when said second inhibiting unit is in said enabling state thereof; and, a locking device configured to lock said first inhibiting unit in said enabling state thereof when said second inhibiting unit is in said enabling state thereof so as to prevent said first inhibiting unit from blocking said operating element also when the operator releases said first actuating element as long as said second actuating element is actuated by the operator so as to cause said second inhibiting unit to be in said enabling state thereof.
地址 Waiblingen DE