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US 6,591,507 B2Granted
Operational lever for bush cutter
AssigneeHonda Kogyo Kabushiki Kaisha
InventorsTakao Kobayashi, Atsushi Kojima, Kenjiro Hiratsuna, Akito Kono
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AssigneeHonda Kogyo Kabushiki Kaisha
InventorsTakao Kobayashi, Atsushi Kojima, Kenjiro Hiratsuna, Akito Kono
Estimating the term…
An operational lever for a bush cutter includes a handle housed in a handle case, a throttle lever pivotally mounted to the handle, and a lock lever pivotally mounted to the handle. The operational lever further includes a torsional coil spring which exerts a resilient force on the lock lever. The lock lever is pivoted from an initial position to a pivoted position by an operator's palm. The throttle lever is then pivoted to a half-pivoted position by operator's fingers. When the palm is moved a small distance away from the handle case with the throttle lever held in the half-pivoted position, the lock lever is pivoted back towards the initial position by a resilient force of the spring. This causes a curved surface of a side protrusion portion of the lock lever to engage or abut on a side of a protrusion portion of the throttle lever. This arrangement is advantageous in that even when the operator takes her or his fingers off the throttle lever, the throttle lever is locked by a friction force produced between the curved surface and the side.
An operational lever for a bush cutter including an operational rod, a prime mover mounted at a rear end of said operational rod, a cutting blade mounted at a front end of said operational rod, said cutting blade being driven by said prime mover, said operational lever comprising:
Dependencies are inferred from the claim text.