LOAD LIFTING MACHINE CONTROL DEVICE (VERSIONS) Russian patent published in 2009 - IPC B66C13/18 

FIELD: load lifting equipment.

SUBSTANCE: proposed device comprises machine operator work station, machine hydraulic or electric drives incorporating control elements connected to operator control instruction transmission means. The latter included control handle and safety electronic device to lock machine drives, if required. In compliance with first version, device comprises one control handle angular position/travel rate pickup, while one safety device input and output are connected to one output of said pickup and one input of hydraulic system unloading means. In compliance with second version, device comprises operator hand motion and/or spatial position pickup built around micromechanical accelerometre, or capacitative, or ultrasound, or radio-wave metre, while safety device input and output are connected with pickup output and one input of hydraulic system unloading means or other means of interlocking machine hydraulic drives. In compliance with third version, device comprises at least one permitted manual control member travel direction indicator, while one safety device output is connected with one input of indicator. In compliance with fourth version, device comprises pickups of drive control member travel and/or drive control elements, together with safety device, allows wireless data transmission from pickups to proposed device.

EFFECT: higher reliability and safety.

23 cl, 1 dwg