A two piece attachment device used for securing a protective shield to a vehicle's head rest poles. The attachment device, as a first piece, includes a pair of shield plates, which include a front plate and a rear plate, attached to opposite sides of the protective shield. The front plate includes a shield attachment screw hole. The attachment device also includes, as a second piece, a head rest pole attachment plate. The attachment plate includes a pair of horizontal pole attachment arms with pole attachment channels. The attachment arms adapted for receipt around a portion of a pair of spaced apart, vertical, head rest poles. The attachment device further includes an “L” shaped shield release plate for attachment to the head rest pole attachment plate. The “L” shaped shield release plate is releasably attached to the front shield plate, using a shield attachment screw received in the shield.

A two piece attachment device used for securing a protective shield to a vehicle's head rest poles. The attachment device, as a first piece, includes a pair of shield plates, which include a front plate and a rear plate, attached to opposite sides of the protective shield. The front plate includes a shield attachment screw hole. The attachment device also includes, as a second piece, a head rest pole attachment plate. The attachment plate includes a pair of horizontal pole attachment arms with pole attachment channels. The attachment arms adapted for receipt around a portion of a pair of spaced apart, vertical, head rest poles. The attachment device further includes an “L” shaped shield release plate for attachment to the head rest pole attachment plate. The “L” shaped shield release plate is releasably attached to the front shield plate, using a shield attachment screw received in the shield.

Various implementations include vehicle headrest configurations and related audio systems. In some cases, a headrest includes: a main body having a front surface to support a back of a user's head and a pair of acoustic channels each formed in part by a side wall having a front edge that is offset from the front surface, the main body having a portion configured to receive first and second transducers, where a transducer mount in each of the pair of acoustic channels for mounting respective ones of the first and second transducers, wherein a dimension (Dimension C) is defined by a rotation angle of the transducer mount relative to a centerline of the vehicle headrest, wherein Dimension C is approximately −20 degrees to approximately zero degrees.

Various implementations include vehicle headrest configurations and related audio systems. In some cases, a headrest includes: a main body having a front surface to support a back of a user's head and a pair of acoustic channels each formed in part by a side wall having a front edge that is offset from the front surface, the main body having a portion configured to receive first and second transducers, where a transducer mount in each of the pair of acoustic channels for mounting respective ones of the first and second transducers, wherein a dimension (Dimension C) is defined by a rotation angle of the transducer mount relative to a centerline of the vehicle headrest, wherein Dimension C is approximately −20 degrees to approximately zero degrees.

Provided is a vehicle seat device that includes a headrest to support a head of an occupant seated on a vehicle seat. The vehicle seat device includes a rest operation adjustment mechanism provided on the headrest and to restrict or allow movement of the head of the occupant seated on the vehicle seat and a controller that controls the rest operation adjustment mechanism to allow the movement of the head of the occupant when a frequency of a vibration in a width direction of a vehicle is equal to or larger than a predetermined value.

Provided is a vehicle seat device that includes a headrest to support a head of an occupant seated on a vehicle seat. The vehicle seat device includes a rest operation adjustment mechanism provided on the headrest and to restrict or allow movement of the head of the occupant seated on the vehicle seat and a controller that controls the rest operation adjustment mechanism to allow the movement of the head of the occupant when a frequency of a vibration in a width direction of a vehicle is equal to or larger than a predetermined value.

A sound emission arrangement, having a seat that has a backrest surface and a headrest surface, where the sound emission arrangement has at least one first and one second actuator for vibration excitation, where each of the two actuators is arranged in the seat, so that the first and the second actuator are each arranged with their excitation surface on the inner side of a covering of the headrest surface or the inner side of a covering of the backrest surface at substantially the same height.

A sound emission arrangement, having a seat that has a backrest surface and a headrest surface, where the sound emission arrangement has at least one first and one second actuator for vibration excitation, where each of the two actuators is arranged in the seat, so that the first and the second actuator are each arranged with their excitation surface on the inner side of a covering of the headrest surface or the inner side of a covering of the backrest surface at substantially the same height.

The present invention relates to a chair including a multi-channel sound system, and more particularly, to a chair including a multi-channel sound system capable of providing a sense of space and a three-dimensional effect to a user who sits in the chair through sounds output from a plurality of channels.

Various implementations include vehicle headrest configurations and related audio systems. In some cases, a headrest includes: a main body having a front surface to support a back of a user’s head and a pair of acoustic channels each formed in part by a side wall having a front edge that is offset from the front surface, the main body having a portion configured to receive first and second transducers, where a transducer mount in each of the pair of acoustic channels for mounting respective ones of the first and second transducers, where a dimension (Dimension C) is defined by a rotation angle of the transducer mount relative to a centerline of the vehicle headrest, wherein Dimension C is approximately -20 degrees to approximately zero degrees.