A conveyance seat unit lessens a neck load applied to an occupant based on body shape, sex, or the like of the occupant when a rear load acts on a conveyance. The conveyance seat unit includes: a seat having a support portion that supports the occupant from behind; a state adjustment mechanism configured to adjust a state of a neck load adjustment portion, of the support portion, that affects the neck load applied to the occupant when the rear load acts on the conveyance; and an electronic control unit (ECU) that controls the state adjustment mechanism. The ECU acquires occupant information on the body and the sex of the occupant and controls the state adjustment mechanism according to the acquired occupant information to change the state of the neck load adjustment portion, which has been adjusted by the state adjustment mechanism, according to the content of the occupant information.

A head securing assembly for supporting a user's head while sleeping and sitting upright in a seat includes a pair of clamps that is each positionable on a top side of a backrest of a seat in a vehicle. Each of the clamps is positioned on opposite sides of a headrest post with respect to each other. A support is coupled to each of the clamps and the support is directed forwardly from the backrest of the seat. A pair of cushions is each slidably coupled to the support and each of the cushions can be positioned on opposite sides of a user's head when the user sits in the seat. In this way the user's head is inhibited from tipping to the left or to the right when the user is sleeping.

A head securing assembly for supporting a user's head while sleeping and sitting upright in a seat includes a pair of clamps that is each positionable on a top side of a backrest of a seat in a vehicle. Each of the clamps is positioned on opposite sides of a headrest post with respect to each other. A support is coupled to each of the clamps and the support is directed forwardly from the backrest of the seat. A pair of cushions is each slidably coupled to the support and each of the cushions can be positioned on opposite sides of a user's head when the user sits in the seat. In this way the user's head is inhibited from tipping to the left or to the right when the user is sleeping.

The present invention relates to a headrest moving device, more particularly, relates to a headrest moving device provided with a contact assisting member for closely contacting two members engaged with each other for moving the headrest so that power can be smoothly transmitted, the noise can be reduced during the movement on the headrest.

The present invention relates to a headrest moving device, more particularly, relates to a headrest moving device provided with a contact assisting member for closely contacting two members engaged with each other for moving the headrest so that power can be smoothly transmitted, the noise can be reduced during the movement on the headrest.

A head restraint for a seat back of a vehicle seat may have two lateral wings. A topmost surface of the wings may flare from top to bottom in a driving position.

A head restraint for a seat back of a vehicle seat may have two lateral wings. A topmost surface of the wings may flare from top to bottom in a driving position.

An adjustable headrest assembly attachable to a seat back and including a linear slide and rotating links that allow the headrest to translate forward, laterally and/or about axes parallel to the seat back to provide head support in various positions. The headrest may further include lateral parts independently adjustable in angle relative to a center part to provide enhanced lateral head support. The adjustable headrest assembly is attachable to a front side of a seat back or to other adjustment mechanisms such as a vertical adjustment mechanism for moving the headrest assembly up or down relative to a seat back.

An adjustable headrest assembly attachable to a seat back and including a linear slide and rotating links that allow the headrest to translate forward, laterally and/or about axes parallel to the seat back to provide head support in various positions. The headrest may further include lateral parts independently adjustable in angle relative to a center part to provide enhanced lateral head support. The adjustable headrest assembly is attachable to a front side of a seat back or to other adjustment mechanisms such as a vertical adjustment mechanism for moving the headrest assembly up or down relative to a seat back.

Disclosed is a positioning device for a vehicular seat that is configured to enable a driver or occupant to adjust a position of a headrest according to a body type or posture, so that the driver can drive a vehicle in a comfortable position, as well as minimizing an injury to cervical vertebrae in a car accident.