Patent ID: 8227694

Claim:
A sheathing protection tube for a wire harness in which both sides in a longitudinal direction are supported by a car body and a door and a portion between said both sides is cross-wired without being supported thereby; and said sheathing protection tube being formed by molding an elastic material having flexibility and having a flat part extended in a vertical direction at one side section thereof and other section continuous with said one side section and sectionally rectangular gutter-shaped or sectionally semicircular ring-shaped to form a sectionally rectangle configuration or a sectionally semicircular configuration to insert said wire harness therethrough, wherein a portion of said other section opposed to said flat part is set as a corrugated bellows part having convex portions and concave portions continuous and alternating with each of said convex portions and said concave portions, and longitudinally spaced at certain intervals; a thickness of said flat part is so set as to prevent said wire harness from hanging owing to a weight thereof; and said bellows part allows said sheathing protection tube to be freely flexible; said flat part can be opened and closed over an entire length thereof in said longitudinal direction thereof; and said wire harness is inserted into said sheathing protection tube from a side surface thereof; and said flat part is composed of an inner flat portion and an outer flat portion separately formed and layered one on the other; an upper end of any one of said inner flat portion and said outer flat portion is continuous with an upper side of said other section; and a lower end of the other of said inner flat portion and said outer flat portion is continuous with a lower side of said other section.