# US 2014/0191550 A1 · Vehicle seat apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0191550 A1 - Document ID: US20140191550A1 - Status: Published application - Kind: A1 - Application number: 14/238,075 - Filed: 2011-08-10 - Published: 2014-07-10 - Earliest claimed: 2011-08-10 - Assignees: Toyota Jidosha Kabushiki Kaisha - Inventors: Kohshi Katoh; Eishi Takeuchi - Web page: https://patentgrep.com/patent/US20140191550A1 ## CPC - B60N 2/02: the seat or part thereof being movable, e.g. adjustable (adjustable arm-rests B60N2/75; adjustable head-rests B60N2/806) - B60N 2/06: slidable (B60N2/12 {, B60N2/2209} take precedence) - B60N 2/22: the back-rest being adjustable {(B60N2/2878 takes precedence)} - B60N 2/39: Seats tiltable to compensate for roll inclination of vehicles - B60N 2/64: Back-rests {or cushions (B60N2/2222 takes precedence)} - B60N 2/80: Head-rests - B60N 2002/0208: {the seat or seat part turning about or moving along an inclined axis} - B60N 2002/0212: {the seat or seat part turning about or moving along a longitudinal axis} - B60N 2002/022: {the seat or seat part turning about or moving along a vertical axis} - B60N: SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR ## Abstract A vehicle seat apparatus includes a seat unit supporting mechanism rotatably supporting a seat unit about a rotation axis in a roll direction of a vehicle and a yaw direction of the vehicle. The rotation axis is set so that a rear side is higher than a front side in a longitudinal direction of the vehicle seat apparatus, and so as to pass near a waist of a driver sitting on the vehicle seat apparatus. ## Claims ### Claim 1 A vehicle seat apparatus comprising: a seat unit; a seat backrest arranged on a rear side of the seat unit; and a seat unit supporting unit that supports the seat unit so that a right side and a left side of the seat unit are relatively movable in a vertical direction of the vehicle seat apparatus; wherein a rotation axis of the seat unit using the seat unit supporting unit is set so that a rear side is higher than a front side in the longitudinal direction of the vehicle seat apparatus. ### Claim 2 (depends on 1) The vehicle seat apparatus according to claim 1, wherein the seat unit supporting unit rotatably supports the seat unit in a roll direction of a vehicle. ### Claim 3 (depends on 1) The vehicle seat apparatus according to claim 1, wherein the seat unit supporting unit supports the seat unit so that the right side and the left side of the seat unit move relatively in a longitudinal direction of the vehicle seat apparatus. ### Claim 4 (depends on 3) The vehicle seat apparatus according to claim 3, wherein the seat unit supporting unit rotatably supports the seat unit in a yaw direction of the vehicle. ### Claim 5 (canceled) ### Claim 6 (depends on 1) The vehicle seat apparatus according to claim 1, wherein the rotation axis of the seat unit using the seat unit supporting unit passes near a waist of an occupant. ### Claim 7 (depends on 1) The vehicle seat apparatus according to claim 1, further comprising: a seat backrest supporting unit that supports the seat backrest so that the right side and the left side of the seat backrest move relatively in the vertical direction of the vehicle seat apparatus. ### Claim 8 (depends on 7) The vehicle seat apparatus according to claim 7, wherein the seat backrest supporting unit rotatably supports the seat backrest in the roll direction of the vehicle. ### Claim 9 (depends on 7) The vehicle seat apparatus according to claim 7, wherein the seat backrest supporting unit supports the seat backrest so that the right side and the left side of the seat backrest move relatively in the longitudinal direction of the vehicle seat apparatus, and wherein the vehicle seat apparatus further comprises a movement direction regulating unit that rotates the seat unit and the seat backrest in opposite directions in a top view. ### Claim 10 (depends on 9) The vehicle seat apparatus according to claim 9, wherein the seat backrest supporting unit rotatably supports the seat backrest in the yaw direction of the vehicle. ### Claim 11 (depends on 7) The vehicle seat apparatus according to claim 7, wherein the rotation axis of the seat backrest using the seat backrest supporting unit passes near a chest of the occupant. ### Claim 12 A vehicle seat apparatus comprising: a seat unit; a seat backrest arranged on a rear side of the seat unit; a seat unit supporting unit that supports the seat unit so that a right side and a left side of the seat unit are relatively movable in a vertical direction of the vehicle seat apparatus; and a seat unit moving unit that moves a side of the seat unit in the same direction as a turning direction of a vehicle relatively upward in the vertical direction of the vehicle seat apparatus with respect to the side of the seat unit in the direction opposite as a turning direction of a vehicle; wherein a rotation axis of the seat unit using the seat unit supporting unit is set so that a rear side is higher than a front side in the longitudinal direction of the vehicle seat apparatus. ### Claim 13 (depends on 12) The vehicle seat apparatus according to claim 12, wherein the seat unit moving unit moves the side of the seat unit in the same direction as the turning direction of the vehicle relatively forward in the longitudinal direction of the vehicle seat apparatus with respect to the side of the seat unit in the direction opposite as the turning direction of the vehicle. ### Claim 14 (depends on 12) The vehicle seat apparatus according to claim 12, further comprising: a seat backrest moving unit that moves the side of the seat backrest in the same direction as the turning direction of the vehicle relatively downward in the vertical direction of the vehicle seat apparatus with respect to the side of the seat backrest in the direction opposite as the turning direction of the vehicle. ### Claim 15 (depends on 12) The vehicle seat apparatus according to claim 12, wherein the seat backrest moving unit moves the side of the seat backrest in the same direction as the turning direction of the vehicle relatively rearward in the longitudinal direction of the vehicle seat apparatus with respect to the side of the seat backrest in the direction opposite as the turning direction of the vehicle, and wherein the vehicle seat apparatus further comprises a movement direction regulating unit that moves the seat unit and the seat backrest in the opposite directions in the longitudinal direction of the vehicle seat apparatus. ### Claim 16 (canceled) ### Claim 17 (depends on 12) The vehicle seat apparatus according to claim 12, wherein the rotation axis of the seat unit passes near a waist of an occupant. ### Claim 18 A vehicle seat apparatus comprising: a seat unit; a seat backrest arranged on a rear side of the seat unit; a seat unit supporting unit that supports the seat unit so that a right side and a left side of the seat unit are relatively movable in a vertical direction of the vehicle seat apparatus; and a distance changing unit that changes a distance between the seat unit and the seat backrest on one side in a lateral direction of the vehicle seat apparatus; wherein a rotation axis of the seat unit using the seat unit supporting unit is set so that a rear side is higher than a front side in the longitudinal direction of the vehicle sea apparatus. ### Claim 19 A vehicle seat apparatus comprising: a seat unit; a seat backrest arranged on a rear side of the seat unit; a seat unit supporting unit that supports the seat unit so that a right side and a left side of the seat unit are relatively movable in a vertical direction of the vehicle seat apparatus; a seat unit rotating unit that rotates the seat unit in a top view of the vehicle seat apparatus; and a seat backrest rotating unit that rotates the seat backrest in the top view of the vehicle seat apparatus, wherein the seat unit rotating unit and the seat backrest rotating unit rotate the seat unit and the seat backrest in opposite directions in the top view; wherein a rotation axis of the seat unit using the seat unit supporting unit is set so that a rear side is higher than a front side in the longitudinal direction of the vehicle seat apparatus.