Agricultural sprayer has two arms, each made up of two sections connected by a ball-and-socket joint which allows arm to swivel if it hits obstacle, gas spring system exerting constant force to restore arm to its original position

摘要

The agricultural sprayer has two arms, each made up of two sections (2, 3). The sections are connected by a ball-and-socket joint (5) which allows the arm to swivel if it hits an obstacle. A gas spring (16) system exerts a constant force to restore the arm to its original position.