Abstract: A modular element for the manufacturing of an arm or of an arm segment of a spray bar provided with spray nozzles, including a first profile determining a longitudinal housing open downwards and at each of its longitudinal ends. A reinforcement is disposed above the first profile in such a way that the respective longitudinal axes of the reinforcement and of the first profile belong to the vertical plane P of longitudinal symmetry of said modular element. A plurality of stiffeners longitudinally connect at least the first profile and the reinforcement to each other, and two plates are disposed at one of the longitudinal ends of said first profile and laterally connect at least the longitudinal ends of the first profile and of the reinforcement to each other.

Abstract: An articulation disposed between two adjacent segments of an arm of a spray bar, including a number of linking members connecting the contiguous ends of two adjacent segments to each other, each linking member being assembled, on the one hand, at one of its ends onto one of said contiguous ends by a ball joint and at its other end onto the other of said contiguous ends by a link allowing, on the one hand, the movement of said linking member with respect to the associated contiguous end in a direction parallel to the longitudinal axis of the associated segment and, on the other hand, the blocking of linking member in a given position.