Abstract: A reclining seat having a U-shaped back frame of a seat back thereof and a base frame of a seat bottom thereof. End portions of the back frame are connected to connecting means provided in the base frame for connecting to the back frame so as to rotate the back frame with respect to the base frame. At least one of the connecting means has a rotating member provided for adjusting and fixing a tilt angle of the seat back with respect to the seat bottom. The rotating member has a shape corresponding to a circumference of the end portion and has means for temporarily attaching the back frame to the base frame, and the temporarily attaching means have a hook. The circumference of the end portion has an entrance for entering and receiving the hook. When the end portion of the back frame is connected to the connector of the base frame, the hook is entered and received in the entrance, and thereby, the back frame is temporarily attached to the base frame.

Abstract: A cushion body (10) for forming a car seat, which facilitates attachment of a skin material (15) to a cushion material (11).The cushion body (10) is made by attaching a planar fastening body (12) in a cushion material molding die (20) and unifying with the cushion material (11) along a three-dimensional curved surface shape of an interior surface of the die by an internal foamed molding pressure of the cushion material (11). The planar fastening body (12) is made of a planar fastening material (13) connecting with a supporting material (14) which is basically the same composition as the cushion material (11).

Abstract: A cushion body structure (1) is connected to a planar fastening body (4) with a cushion material (6), by spacing in a proper distance at least a part along a side end (7) of the planar fastener (4) from the cushion material (2, 3) positioned in proximity of it through a space (11). When a skin material (12) fastened to the planar fastener (4) is tensioned, it is not moved to separate from and fasten to the skin material again and thereby does not produce noise.

Abstract: In a cushion body structure of a car seat, which is made by fastening a skin material to a cushion material by using a planar fastening material, an impregnation layer made of a foamed body is not produced. In the cushion body structure, a planar fastening body (4) is integrally molded with a cushion material by shielding and clamping walls (22, 23) for preventing entry of a foaming solution in a molding die (20) of the cushion material (2,3), so that an opening is provided between the periphery of the planar fastening body and the side (3) of the cushion material, and a non-impregnation layer (7) is formed in the periphery.