Abstract: The present invention provides a grommet with a grommet body having an insertion aperture into which a corrugated tube is inserted, and a slit extending from the insertion aperture to an outer peripheral surface of the grommet body so that the slit can be opened and closed. Facing surfaces of the grommet body on opposite sides of the slit are inclined at a predetermined angle with respect to a line coextensive with a central axis of the insertion aperture. The outer peripheral surface of the body is also inclined at the same predetermined angle with respect to the line. The present invention makes it easier to mount a corrugated tube to the insertion aperture of the grommet body by using the slit, and thus improves efficiency of the mounting operation. In addition, after mounting the corrugated tube, the slit is tightly closed, and thus waterproofness and soundproofness of the grommet are not adversely affected.

Abstract: The present invention provides a terminal protective cap that covers a terminal of an electric wire and protects the terminal from exposure. The terminal protective cap has an engaging portion that engages with a projecting portion provided on an outer periphery of the terminal. This prevents the terminal from being exposed. Thus, the terminal is securely protected.

Abstract: A method of assembling complex wire harnesses wherein sub-assemblies of relatively simple circuits are made, terminals attached to the ends of each circuit, and the terminals are inserted into connectors. Each circuit is tested for integrity and, thereafter, the various circuits are placed together on a positioning board and bound with tape.

Abstract: A waterproof construction of a wire for a motor vehicle, which wire has one or more strands and an insulating coating surrounding the strands and is connected to a nonwatertight terminal including a terminal fixed directly to a body of the motor vehicle and a terminal mounted on a nonwatertight connector, wherein at a portion of the wire between its location connected to the nonwatertight terminal and a first branch point, the insulating coating is removed from the wire so as to expose the strands and waterproof material is filled among the strands such that an insulating and waterproofing coating member is wound around an outer periphery of the waterproof material.