US Patent 10976001 Support arm device

A support arm device includes a joint unit, an arm unit, and an outer shell. The joint unit includes two spaced-apart joint seats. Each joint seat has two curved joining members that are opposite to each other. The arm unit is pivotally connected between the joint seats. The outer shell is flexible, and includes two side walls disposed respectively at opposite lateral sides of the joint seats, and a top wall interconnecting top ends of the side walls. Each side wall has a first docking portion engaging concentrically and rotatably a respective one of the joint members of one of the joint seats, and a second docking portion engaging concentrically and rotatably a respective one of the joint members of the other one of the joint seats.