TRIPOD ARM OF PARALLEL-SERIAL STRUCTURE Russian patent published in 2017 - IPC B66C23/44 

FIELD: transportation.

SUBSTANCE: tripod arm of parallel-serial structure, installed on the vehicle, has a basis on which three hydraulic cylinders are mounted using hinges, rods of which are connected with each other and with the cargo gripper. The arm is equipped with an additional cylinder located on the basis, in the form of flat triangular truss, one side of which is fixed on the vehicle with the ability to rotate in a vertical plane. At the join point of three cylinders, using five-wheel hinge, a three-degree controlled gripper is fixed, representing three consequentially interconnected mechanisms whose structures are connected using rotational cylindrical joints with kinematic pair of fifth grade, and for their rotation stepper motors are provided, attached to the mechanisms structures.

EFFECT: increased mobility, increased functionality by providing additional mobility degrees in the cargo gripper structure, as well as its control using stepper motors.

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