Head-rest for use with sound system of e.g. telephone to provide sound to occupant of vehicle, has rigid support including cavity comprising front box, pipe and removable scoop forming resonator of sound emitted by loudspeaker

摘要

The head-rest has a rigid support covered with a trimming for supporting back side of head of an occupant. Sound-holes transmit sound on both sides of the rigid support. The rigid support includes a cavity comprising a front box, a pipe and a removable scoop (5) forming a resonator of sound emitted by a loudspeaker. The scoop includes a semi-rectangular part (16a) prolonged by a semi-cylindrical part (16b). The semi-rectangular part forms an obtuse angle with the semi-cylindrical part. The parts include bosses (17a, 17b) with holes.