# US 2019/0315249 A1 · Seat adjustment mechanism > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0315249 A1 - Document ID: US20190315249A1 - Status: Published application - Kind: A1 - Application number: 16/461,735 - Filed: 2017-11-17 - Published: 2019-10-17 - Earliest claimed: 2016-11-18 - Assignees: McLaren Automotive Limited - Applicants: McLaren Automotive Limited - Inventors: Barry Lett; Christopher Lee Bates - Web page: https://patentgrep.com/patent/US20190315249A1 ## CPC - B60N 2/06: slidable (B60N2/12 {, B60N2/2209} take precedence) - B60N 2/02246: {Electric motors therefor} - B60N 2/045: {Longitudinal adjustment by means of articulated rods supporting the seat, e.g. parallelogram mechanisms (B60N2/38 takes precedence)} - B60N 2/1615: {Parallelogram-like structure} - B60N 2/1695: {with simultaneous height and inclination adjustment} - B60N 2/18: the front or the rear portion of the seat being adjustable, e.g. independently of each other - B60N 2/1814: {Parallelogram-like structure} - B60N 2/1864: {Gear wheel driven mechanism} - B60N: SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR ## Abstract A vehicle seat having a base (10) and a squab (11) and an adjustment mechanism (20) whereby the position of an occupant sitting in the seat can be adjusted, the mechanism being configured so as to permit the seat to follow a motion path that provides coordinated adjustment of both height and back inclination of the occupant, the motion path being such that as the height of the occupant is raised the back inclination of the occupant becomes less supine. ## Claims ### Claim at position 1 1-17. (canceled) ### Claim 18 A vehicle seat configured to be mountable to a vehicle floor pan, the seat comprising: a base, a squab, and an adjustment mechanism whereby the position of an occupant sitting in the seat can be adjusted, wherein: the mechanism is configured so as to permit the seat to follow a motion path that provides coordinated adjustment of both height and back inclination of the occupant, and the motion path is such that as the height of the occupant is raised: (i) the back inclination of the occupant becomes less supine, (ii) the H point of the seat is moved rearwards, (iii) the front of the base lowers, and (iv) the position of the squab relative to the base is fixed. ### Claim 19 (depends on 18) A seat as claimed in claim 18, wherein the motion path provides adjustment of the H point height of the seat. ### Claim 20 (depends on 18) A seat as claimed in claim 18, wherein the base and the squab are integral with each other. ### Claim 21 (depends on 18) A seat as claimed in claim 18, wherein the motion path is such that the maximum torso line inclination of an occupant achieved by the mechanism is greater than 28 degrees from vertical. ### Claim 22 (depends on 18) A seat as claimed in claim 18, wherein, over a range of motion of the mechanism, the mean decrease in supine inclination of the torso line of the occupant is between 0.2 and 0.5 degrees per millimeter of increase in height of the H point of the seat. ### Claim 23 (depends on 18) A seat as claimed in claim 18, wherein, over a range of motion of the mechanism, the mean decrease in supine inclination of the torso line of the occupant is between 0.32 and 0.42 degrees per millimeter of increase in height of the H point of the seat. ### Claim 24 (depends on 18) A seat as claimed in claim 18, wherein, over a range of motion of the mechanism, the mean rearwards motion of the H point is between 1 mm and 3 mm per millimeter of increase in height of the H point of the seat. ### Claim 25 (depends on 18) A seat as claimed in claim 18, wherein, over a range of motion of the mechanism, the mean rearwards motion of the H point is between 1.3 mm and 2.3 mm per millimeter of increase in height of the H point of the seat. ### Claim 26 (depends on 22) A seat as claimed in claim 22, wherein the said range of motion is an entire range of motion provided by the mechanism. ### Claim 27 (depends on 22) A seat as claimed in claim 22, wherein the said range of motion encompasses more than 5 degrees of variation in the torso line of the occupant. ### Claim 28 (depends on 22) A seat as claimed in claim 22, wherein the said range of motion encompasses a state of the seat in which the torso line of the occupant is at 31 degrees of supine inclination to vertical. ### Claim 29 (depends on 22) A seat as claimed in claim 22, wherein the said range of motion encompasses a state of the seat in which the torso line of the occupant is at 35 degrees of supine inclination to vertical. ### Claim 30 (depends on 22) A seat as claimed in claim 22, wherein the said range of motion encompasses more than 10mm of variation in the height of the H point of the seat. ### Claim 31 (depends on 18) A seat as claimed in claim 18, wherein the seat is mounted to a vehicle floor pan. ### Claim 32 (depends on 18) A seat as claimed in claim 18, further comprising one or more rails running longitudinally with respect to the seat, the mechanism being mounted on the rails so that the mechanism can be moved longitudinally with respect to the rails. ### Claim 33 (depends on 18) A seat as claimed in claim 18, wherein the mechanism comprises a base part, a forward link mounted between the base part and the seat base such that the forward link can rotate with respect to both the base part and the seat base, and a rear link mounted between the base part and the seat base such that the rear link can rotate with respect to both the base part and the seat base, the rear link being located rearwardly from the forward link, and the motion path of the seat being provided by rotation of the forward and rear links with respect to the base part and the seat base. ### Claim 34 (depends on 18) A vehicle comprising a seat as claimed in claim 18.