Proposed are a seat for a vehicle and a method of controlling the same capable of sensing whether an occupant is snoring and of changing the posture of the occupant so as to induce sound sleep of the occupant. The seat for a vehicle includes a seat cushion, a seatback, a side bolster, a headrest, a sensing device mounted in the headrest to sense whether an occupant is on the seat and whether the occupant is snoring, a posture-changing device mounted in at least one of the seat cushion, the seatback, the side bolster, or the headrest to change the posture of the occupant, and a controller configured to determine whether the occupant is on the seat and whether the occupant is snoring based on a sensing signal output from the sensing device and to operate the posture-changing device.

Proposed are a seat for a vehicle and a method of controlling the same capable of sensing whether an occupant is snoring and of changing the posture of the occupant so as to induce sound sleep of the occupant. The seat for a vehicle includes a seat cushion, a seatback, a side bolster, a headrest, a sensing device mounted in the headrest to sense whether an occupant is on the seat and whether the occupant is snoring, a posture-changing device mounted in at least one of the seat cushion, the seatback, the side bolster, or the headrest to change the posture of the occupant, and a controller configured to determine whether the occupant is on the seat and whether the occupant is snoring based on a sensing signal output from the sensing device and to operate the posture-changing device.

A seating posture is stabilized for the shoulders of a passenger seated on a vehicle seat. A vehicle seat is provided with a seat back configured to support the seated person from the rear. A shoulder support portion of the seat back configured to support a corresponding one of the shoulders of the seated passenger includes an air cell configured to expand when air is supplied. When the air cell expands, one end portion of the shoulder support portion on the outside in the width direction of the vehicle seat moves more forward than the other end portion of the shoulder support portion on the inside in the width direction.

A seating posture is stabilized for the shoulders of a passenger seated on a vehicle seat. A vehicle seat is provided with a seat back configured to support the seated person from the rear. A shoulder support portion of the seat back configured to support a corresponding one of the shoulders of the seated passenger includes an air cell configured to expand when air is supplied. When the air cell expands, one end portion of the shoulder support portion on the outside in the width direction of the vehicle seat moves more forward than the other end portion of the shoulder support portion on the inside in the width direction.

An accessory support assembly for a vehicle seat includes a support frame that includes an upper bracket and a lower bracket coupled to a bottom of the upper bracket. The lower bracket includes coupling features. The lower bracket defines side projections that extend from opposing sides of the support frame. A speaker assembly is coupled to the support frame. The speaker assembly includes a first speaker housing and a second speaker housing. The first and second speaker housings are coupled to the side projections of the support frame, respectively. A speaker is disposed in each of the first and second housings.

An accessory support assembly for a vehicle seat includes a support frame that includes an upper bracket and a lower bracket coupled to a bottom of the upper bracket. The lower bracket includes coupling features. The lower bracket defines side projections that extend from opposing sides of the support frame. A speaker assembly is coupled to the support frame. The speaker assembly includes a first speaker housing and a second speaker housing. The first and second speaker housings are coupled to the side projections of the support frame, respectively. A speaker is disposed in each of the first and second housings.

A headrest includes a first configuration section comprising a hard urethane and formed with an indentation in a front face, the indentation enabling entry of a supported portion, and the supported portion being a location corresponding to an occipital bone of the head of the seated occupant; and a second configuration section comprising a soft urethane having a lower rigidity than the hard urethane, the second configuration section being provided at the indentation so as to be deformed by the supported portion. Part of the first configuration section, which is a bottom face of the indentation, is configured by a left-right pair of head support faces that support the supported portion and that are connected together at a connection location having a straight line shape. An angle formed between cross-sections of the left and right head support faces when sectioned along a plane perpendicular to the connection location is a first angle that is from 37.2° to 143°. An angle formed between a direction perpendicular to the connection location and a seat front-rear direction when viewed along a seat left-right direction is a second angle that is from 12.8° to 68.7°.

A headrest includes a first configuration section comprising a hard urethane and formed with an indentation in a front face, the indentation enabling entry of a supported portion, and the supported portion being a location corresponding to an occipital bone of the head of the seated occupant; and a second configuration section comprising a soft urethane having a lower rigidity than the hard urethane, the second configuration section being provided at the indentation so as to be deformed by the supported portion. Part of the first configuration section, which is a bottom face of the indentation, is configured by a left-right pair of head support faces that support the supported portion and that are connected together at a connection location having a straight line shape. An angle formed between cross-sections of the left and right head support faces when sectioned along a plane perpendicular to the connection location is a first angle that is from 37.2° to 143°. An angle formed between a direction perpendicular to the connection location and a seat front-rear direction when viewed along a seat left-right direction is a second angle that is from 12.8° to 68.7°.

The invention relates to a motor vehicle seat for motor vehicles comprising an adjustment device for a backrest head adjustment, the motor vehicle seat having a backrest, which has a backrest frame as the first component of the backrest head adjustment and a backrest head as the second component of the backrest head adjustment, and an actuator. The backrest head is pivotably connected to the backrest frame and the actuator has a driving element and a movable element, the actuator being connected to the backrest frame and the backrest head and it being possible to carry out a linear movement by means of the actuator. The driving element of the actuator is rigidly connected to the backrest frame or backrest head and the movable element of the actuator has a guide element which engages in a guide arranged on the backrest frame or backrest head.

A headrest disposed in an upper portion of a seat of a vehicle is configured such that a plurality of through holes are arranged in a vertical direction, the through holes extending through the headrest in a horizontal and front-rear direction.