# US 2019/0168637 A1 · Vehicle Seat > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0168637 A1 - Document ID: US20190168637A1 - Status: Published application - Kind: A1 - Application number: 16/321,156 - Filed: 2017-03-31 - Published: 2019-06-06 - Earliest claimed: 2016-08-03 - Assignees: Ts Tech Co., Ltd. - Applicants: Ts Tech Co., Ltd, - Inventors: Yasutaka Abe; Yuta Sugaya - Web page: https://patentgrep.com/patent/US20190168637A1 ## CPC - B60N 2/065: {Rear seats} - B60N 2/3011: {the back-rest being hinged on the cushion, e.g. "portefeuille movement"} - B60N 2/0272: {using sensors or detectors for detecting the position of seat parts} - B60N 2/06: slidable (B60N2/12 {, B60N2/2209} take precedence) - B60N 2/0705: {omega-shaped} - B60N 2/0715: {C or U-shaped} - B60N 2/0881: {Activation of the latches by the control mechanism} - B60N 2/20: the back-rest being tiltable, e.g. to permit easy access (B60N2/04, B60N2/22 {, B60N2/3002} take precedence) - B60N 2/30: Non-dismountable {or dismountable} seats storable in a non-use position, e.g. foldable spare seats - B60N 2/305: {the cushion being hinged on the vehicle frame} - B60N 2/12: slidable and tiltable - B60N: SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR ## Abstract In order to prevent distortion of slide rails caused by an urging force generated by an urging member in a vehicle tumble seat, a vehicle seat is capable of taking a stowed position in which a seat back 6L is folded onto a seat cushion 5L and the seat cushion 5L together with the folded seat back 6L is rotatably lifted away from a floor 3, and the vehicle seat is configured to include: a support member 31 coupled to the floor; a rotating member 33L rotatably supported by the support member via a support shaft extending in a right-left direction; a lower rail 41 extending in a front-rear direction and coupled at an end to the rotating member so as to be extend literally offset relative to the support shaft; an upper rail 42 slidably supported by the lower rail and coupled to the seat cushion; a coupling device 51 provided at a second end of the lower rail on a side toward the support shaft and capable of selectably connecting to the floor; and an urging device 60 extending the front-rear direction and having one end coupled to the support member and a second end coupled to the lower rail on the side toward the support shaft side, wherein the urging device is configured to be expandable and contractible in a longitudinal direction thereof so as to urge the seat cushion in such a direction as to rotate about the support shaft away from the floor. ## Claims ### Claim 1 A vehicle seat including a seat cushion and a seat back rotatably attached to the seat cushion, wherein the vehicle seat is capable of taking a stowed position in which the seat back is folded onto the seat cushion and the seat cushion together with the folded seat back is rotatably lifted away from a floor, the vehicle seat comprising: a support member coupled to the floor; a rotating member rotatably supported by the support member via a support shaft extending in a right-left direction; a lower rail extending in a front-rear direction and coupled at an end to the rotating member so as to be extend literally offset relative to the support shaft; an upper rail slidably supported by the lower rail and coupled to the seat cushion; a coupling device provided at a second end of the lower rail on a side toward the support shaft and capable of selectably connecting to the floor; and an urging device extending the front-rear direction and having one end coupled to the support member and a second end coupled to the lower rail on the side toward the support shaft side, wherein the urging device is configured to be expandable and contractible in a longitudinal direction thereof so as to urge the seat cushion in such a direction as to rotate about the support shaft away from the floor. ### Claim 2 (depends on 1) The vehicle seat according to claim 1, wherein the support shaft, the urging device, and the coupling device are arranged on an imaginary straight line extending in the front-rear direction. ### Claim 3 (depends on 1) The vehicle seat according to claim 1, wherein the second end of the lower rail is coupled to a reinforcing member, and wherein the coupling device and the second end of the urging device are coupled to the reinforcing member. ### Claim 4 (depends on 1) The vehicle seat according to claim 1, wherein the coupling device includes a latch configured to be engageable with a striker provided on the floor, and wherein the latch is rotatable about an axis line extending in the right-left direction and is arranged such that the latch, viewed from the right-left direction, has an upper part which overlaps the lower rail when and an lower part which protrudes downward beyond the lower rail. ### Claim 5 (depends on 1) The vehicle seat according to claim 1, wherein the support shaft, the coupling device, and the urging device are disposed within an inner region of the vehicle seat in the right-left direction. ### Claim 6 (depends on 1) The vehicle seat according to claim 1, wherein the rotating member includes a front end portion rotatably supported by the support shaft and a rear end portion offset outward relative to the front end portion in the right-left direction of the vehicle seat, and wherein a front end portion of the lower rail is coupled to the rear end portion of the rotating member. ### Claim 7 (depends on 1) The vehicle seat according to claim 1, wherein the lower rail is coupled to the rotating member at a front end, wherein a rail locking device is provided between the upper rail and the lower rail and configured to selectively hold a position of the upper rail with respect to the lower rail, wherein a rail urging member is provided and configured to urge the seat cushion frontward relative to the lower rail, wherein the rail locking device is coupled to the seat back via a power transmission member, and configured such that, when the seat back is folded toward the seat cushion at an angle within a prescribed angular range, the rail locking device is driven by the power transmission member to enable the upper rail to move with respect to the lower rail. ### Claim 8 (depends on 1) The vehicle seat according to claim 1, wherein the coupling device comprises: a latch configured to be engageable with a striker provided on the floor; an operating input part configured such that a user's operating force is input to the operating input part; a connecting mechanism configured to selectively transmit the operating force from the operating input part to the latch; and a slide position detecting device provided between the seat cushion and the lower rail and configured to operate when the seat cushion is at a prescribed front end position relative to the lower rail, wherein, when the seat cushion is at the front end position, the connecting mechanism is driven by the slide position detecting device to transmit the operating force from the operating input part to the latch.