Providing speakers in a vehicle seat

摘要

A speaker system for use in a seat includes a speaker enclosure including a speaker having a sound-radiating element with a first side and a second side, and an at least partially enclosed volume of space larger than a volume of space occupied by the speaker and acoustically coupled to the second side of the sound-radiating element of the speaker, the enclosure sized to fit within a first vertically-oriented cavity in a seat back, open at the top of the seat back. A motor moves the first speaker enclosure between a first position in which the first speaker enclosure is fully contained within the first cavity and a second position in which the first speaker enclosure protrudes from the top of the seat back such that the first side of the sound-radiating element is coupled to free space at the top of the seat back.

主权项

1. A seat comprising:
a seat back having a first vertically-oriented cavity open at the top of the seat back; a first speaker enclosure comprising:
a speaker having a sound-radiating element with a first side and a second side, andan at least partially enclosed volume of space larger than a volume of space occupied by the speaker and acoustically coupled to the second side of the sound-radiating element of the speaker,the enclosure sized to fit within the first cavity; a motor coupled to the first speaker enclosure and operable to move the first speaker enclosure between a first position in which the first speaker enclosure is fully contained within the first cavity and a second position in which the first speaker enclosure protrudes from the top of the seat back such that the first side of the sound-radiating element is coupled to free space at the top of the seat back; and a headrest, wherein: the headrest comprises a vertically-oriented shaft that protrudes into the seat back and supports the headrest in at least two vertical positions; and the first speaker enclosure further comprises a protrusion extending from the enclosure and aligned with the shaft of the headrest, such that the protrusion limits the upper vertical extent of the second position of the first speaker enclosure according to the position of the headrest.