US Patent 11173809 Electric seat slide device

In an electric seat slide device of the present invention, a rear-side bracket 27 includes a first support member 41 fixed to a lower rail 2, a second support member 42 fixed to the lower rail 2 together with the first support member 41, a female screw member 43 as a first nut member through which a screw shaft 4 passes, and a second nut member 44 through which the screw shaft 4 passes. A pair of side wall portions 47 extending along a lower rail longitudinal direction and a vertical wall portion 62 of the second support member 42 which is formed orthogonal to the straight line along the lower rail longitudinal direction are sandwiched between the female screw member 43 and the second nut member 44.