| CPC B60N 2/06 (2013.01) [B60N 2/02246 (2023.08); B60N 2/067 (2013.01)] | 11 Claims |

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1. A seat track device of a vehicle, the seat track device comprising:
a first seat track including a first upper rail and a first lower rail, the first upper rail sliding along the first lower rail;
a power rail module including a module bracket that is removably coupled to both of the first upper rail and a seat, the power rail module being configured to transmit power of a drive part to the module bracket so as to allow the first upper rail to slide along the lower first rail in an electric manner together with the seat;
a lead screw disposed in parallel to the first seat track, and configured to rotate by the power of the drive part; and
a nut member fixed to the module bracket and into which the lead screw is inserted, and configured to rectilinearly move together with the module bracket in response to rotation of the lead screw,
wherein a shaft of the drive part and the lead screw are concentrically coupled to each other.
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