US Patent 10259346 Seat sliding device

Provided is a seat sliding device. The seat sliding device comprises a fixed-side rail, a movable-side rail, a plurality of first sliding bodies, and a plurality of second sliding bodies. The plurality of second sliding bodies are provided at least at an end on a first side of a sliding direction in at least one of the fixed-side rail and the movable-side rail, and are configured to be interposed between the fixed-side rail and the movable-side rail, so as to be able to make the movable-side rail slide in the sliding direction with respect to the fixed-side rail.