Abstract: The invention provides a speaker device having wide directivity and exhibiting excellent frequency characteristics with a simple configuration, and to this end, a directivity adjustment panel is arranged to cover one part of a vibration region of a vibration plate of a speaker unit, the directivity adjustment panel being arranged with a predetermined distance from an edge portion of an outer periphery of the vibration plate of the speaker unit, and formed to reflect a sound wave received from the vibration plate toward the vibration plate.

Abstract: An electrical connection box having a housing with one or more electrical components therein. A plurality of holding chambers are in communication with the housing. A busbar, having a plurality of tab terminals thereon, is inserted into the holding chambers through an opening in the main case. Similarly, wire terminals, mounted on the ends of wires, are also inserted through the opening into the holding chambers. There are engagement pieces which secure the busbar and the wire terminals in the main case and housings whereby each of the holding chambers is capable of receiving and securing either the busbar or a wire terminal.

Abstract: A support structure for a wire harness having a connection section. The structure includes a hollow support member, open at, one end, on a wall of an electrical connection box. An insulative cap is provided which has an outer diameter greater than the inner diameter of the support member. The cap surrounds the connection section and is pressed into the support member. Its resilience distorts the cap and thereby creates internal friction to resist inadvertent withdrawal. In a preferred form of the Invention, the cap is provided with one or more alternating shelves and grooves which assist in distortion. A further support can be provided on the support member and a portion of the wires taped thereto. This provides a water and vibration resistant connection which is easy to assemble and minimizes the number of parts required.