An apparatus, which engages wiper blades in operation by interlocking with an operation of a washer switch, drives the wiper blades at a high speed if the vehicle speed during the wiper blade operation is equal to or higher than a predetermined value. By means of the packaging unit of the invention, several pipe sections can be transported and stored very economically. The wedge plate is disposed radially between the hub and the carrier. Pivoting hinge brackets are attached onto the side support first end and the boat stern inside a transom. The rim member is joined to the flanged rim by making the wedges slide into the L-shaped notches, and the optical lens is thereby fixed between the rim member and the transparent lens. A fiber reinforcement strip is adhered to the structural member between the pair of holes.