US 7,537,267 B2
Hatchback door structure for vehicles
Takeki Tanaka, Saitama (Japan); Tomofumi Ichinose, Saitama (Japan); Kenichi Munenaga, Saitama (Japan); Kazuhiko Yamada, Saitama (Japan); and Yoshitomo Ihashi, Saitama (Japan)
Assigned to Honda Motor Co., Ltd., Tokyo (Japan)
Filed on Jan. 24, 2007, as Appl. No. 11/657,239.
Claims priority of application No. 2006-017032 (JP), filed on Jan. 26, 2006; and application No. 2006-064021 (JP), filed on Mar. 09, 2006.
Prior Publication US 2007/0170751 A1, Jul. 26, 2007
Int. Cl. B60J 5/10 (2006.01)
U.S. Cl. 296—146.6  [296/146.8; 49/502] 16 Claims
OG exemplary drawing
 
1. A hatchback door structure for vehicles, comprising:
an inner panel which is arranged on an inner side of a vehicle; and
an outer panel which is arranged on an outer side of the vehicle;
wherein the inner panel is formed as an integral unitary member by press-forming; and
wherein the inner panel comprises:
a frame which has a shape outlining an outer shape of the hatchback door structure, hinges provided on an upper periphery of the frame for attaching the hatchback door structure to a vehicle, and
a pair of stiffening ribs which are integrally formed with the frame, said stiffening ribs extending approximately in a V-shape from a bottom part of the frame to each of a couple of side portions of the frame, wherein:
on an upper side of the stiffening ribs, a substantially pentagonal first opening is defined by the stiffening ribs and the frame;
on a lower side of one of the stiffening ribs, a substantially triangular second opening is defined by the one of the stiffening ribs and the frame; and
on a lower side of the other stiffening rib, a substantially triangular third opening is defined by the other stiffening rib and the frame.