Patent ID: 8066253

Claim:
An embedment member that attaches to an inner surface of a mold for forming a seat pad by foaming and to be integrated with the resin foam when a resin material is foamed in the mold, wherein said embedment member is provided with a concave portion that engages with an engaging projection formed on the inner surface of the mold to hold the embedment member to the inner surface of the mold, wherein the concave portion is provided at a first exterior face of the embedment member, said first exterior face being planar in the vicinity of the concave portion, said engaging projection has a thin leg and an enlarged head, and said concave portion has a narrow portion to be engaged with the leg, a wide portion to be engaged with the head, and a passage portion for the passage of the head, wherein, the wide portion is positioned behind the narrow portion with respect to the planar first exterior face of the embedment member, such that the wide portion is provided at an interior of the embedment member, wherein both the narrow portion and the passage portion open directly from the planar first exterior face of the embedment member, wherein said narrow portion and said wide portion extend linearly from the passage portion toward a front side of the seat pad, wherein an outer periphery of each of the narrow portion and the passage portion is entirely enclosed by the planar first exterior face of the embedment member, and wherein the narrow portion is narrower than the passage portion.