Pioneer Corporation

Tohoku Pioneer Corporation

Daisuke Itoh

Teruaki Kaiya

Kenta Fujimoto

Toshihiro Hikichi

Kyoichi Matsuda

There is provided a speaker allowing an air in a space between a diaphragm and a frame not to leak outside, and allowing connecting wires electrically connected to the voice coil to be guided out to an outside. A speaker I includes: a frame; a magnetic circuit unit; a vibrating unit; and a wiring structure unit. A holeis formed on the frame. The magnetic circuit unitis attached to the frame. The vibrating unitis received in the frame, and includes diaphragmsvibrated by the magnetic circuit unit. An air in a space surrounded by the diaphragmsand the frameis sealed. The wiring structure unitincludes a tube member, into which lead wiresare inserted. The tube memberis pressed into a hole, and guides the lead wiresto an outside of the space.

Speaker

A speaker having improved sound quality by reducing a phase difference and also having an outstanding outward appearance is provided. In a speaker comprising a vibrating element, a drive unitfor vibrating the vibrating element, and a framesupporting the vibrating elementand the drive unit, the vibrating elementcomprises a front face regionA which forms a continuously curved face having a convex-shaped cross-sectional portion Tformed in its central portion and a concave-shaped cross-sectional portion Tformed around the portion T, and a connecting regionB located on the rear side of the front face regionA and connected to the drive unit

A speakerincludes: a framea magnetic circuitand a vibrating unit. The magnetic circuitis attached to the frame. The vibrating unitis received in the frame, and includes a drive coneand a diaphragmvibrated by the magnetic circuit. A space surrounded by the drive cone, the diaphragmand the frameis sealed. An edge unitis attached to an outer edge of the drive cone. The edge unitis in an arc sectional shape, and integrally includes two roll partsarranged coaxially to each other.

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Tendo, Japan

Daisuke Itoh