An operation lever lock apparatus includes: operation levers; hydraulic control valves arranged at a portion lower than a floor panel; and link members, each of the link members extending downward from a base part of a corresponding one of the operation levers to be connected to a corresponding one of the hydraulic control valves, wherein the hydraulic control valves are operated by causing the link members to move vertically, the apparatus further including: an engagement member provided under the link member; and a stopper member having an engagement part to be engaged in the engagement member, wherein the stopper member is movable between an engaged position at which the engagement part engages in the engagement member and a released position at which the engagement part is released from the engagement member, and arranged to restrict movement of the link member in a vertical direction when positioned in the engaged position.
Operation lever lock apparatus
2015-11-10
Patent
Electronic Resource
English
IPC: | B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last / E02F Baggern , DREDGING / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein |