Abstract: A seatback frame for vehicles is disclosed. The seatback frame for vehicles has a simple structure without bracket structures used to install a conventional seatback frame and thus achieves cost reduction and weight reduction. In particular, the seatback frame is segmented into several parts having different rigidities so that only a part, on which load is concentrated, is set to have high strength and thus avoids overdesign for excessively high strength of an unnecessary part.

Abstract: A seatback frame for vehicles is disclosed. The seatback frame for vehicles has a simple structure without bracket structures used to install a conventional seatback frame and thus achieves cost reduction and weight reduction. In particular, the seatback frame is segmented into several parts having different rigidities so that only a part, on which load is concentrated, is set to have high strength and thus avoids overdesign for excessively high strength of an unnecessary part.

Abstract: The present invention relates to an integrated foam type headrest and a manufacturing method thereof. The headrest includes: a headrest cover; a cushion member which is attached to the inside of the cover before forming foam of a foam material, and is made of material having high elongation and low resistant resilience; a partition member, attached to the inside of the cushion member, for preventing the foam material from penetrating the cushion member; a stay frame for fixing the headrest to a sheet; and a foam material which surrounds the stay frame and is filled in the inside of the cover of the headrest by means of foam-forming. Accordingly, even though a cushion member having a thickness of 10 mm or more is installed to satisfy the softness properties of the headrest, the cushion member can be stably adhered to the cover, and can be reliably installed even at a curved part. Furthermore, sewing convenience is achieved, and thus mass production is possible.

Abstract: Disclosed herein is a multi-hardness cushion having a ventilation structure. This includes a support cushion having an insert recess, and stepped portions formed on both sides of the insert recess; a friction cushion detachably provided in the insert recess and having locking parts locked to the stepped portions; a first ventilation unit having a first air flow channel provided in the insert recess, a plurality of first side flow channels provided in the stepped portions, and an air inlet opening provided in the first air flow channel; and a second ventilation unit having a second air flow channel formed in the friction cushion to face the first air flow channel, a plurality of second air flow holes formed along the second air flow channel to penetrate the friction cushion, and a plurality of second side flow holes formed in the locking parts.

Abstract: The present invention relates to an integrated foam type headrest and a manufacturing method thereof. The headrest includes: a headrest cover; a cushion member which is attached to the inside of the cover before forming foam of a foam material, and is made of material having high elongation and low resistant resilience; a partition member, attached to the inside of the cushion member, for preventing the foam material from penetrating the cushion member; a stay frame for fixing the headrest to a sheet; and a foam material which surrounds the stay frame and is filled in the inside of the cover of the headrest by means of foam-forming. Accordingly, even though a cushion member having a thickness of 10 mm or more is installed to satisfy the softness properties of the headrest, the cushion member can be stably adhered to the cover, and can be reliably installed even at a curved part. Furthermore, sewing convenience is achieved, and thus mass production is possible.

Abstract: Disclosed herein is a multi-hardness cushion having a ventilation structure. This includes a support cushion having an insert recess, and stepped portions formed on both sides of the insert recess; a friction cushion detachably provided in the insert recess and having locking parts locked to the stepped portions; a first ventilation unit having a first air flow channel provided in the insert recess, a plurality of first side flow channels provided in the stepped portions, and an air inlet opening provided in the first air flow channel; and a second ventilation unit having a second air flow channel formed in the friction cushion to face the first air flow channel, a plurality of second air flow holes formed along the second air flow channel to penetrate the friction cushion, and a plurality of second side flow holes formed in the locking parts.