Patent ID: 8231174

Claim:
A seat structure comprising: a contracting portion provided at an end portion of a seat, and made to be contractible; a covering member covering the contracting portion; an internal member provided within the contracting portion, and having elasticity, and at which a plurality of concave portions are formed at a seat reverse side surface, and at which a convex portion is formed between the concave portions; a supporting member supporting the concave portions of the internal member from the seat reverse side by, in an extended state, contacting the convex portion; and a taking-in component taking in slack of the covering member at the seat end surface when the contracting portion is contracted; wherein the taking-in component includes a non-interlocked portion on which the covering member is fixed, and which is not interlocked with contraction of the contracting portion; and an interlocked portion which is disposed further toward a seat obverse side than the non-interlocked portion, and on which the covering member is fixed, and which is interlocked with contraction of the contracting portion and which moves the covering member toward the seat interior.