Patent ID: 7070228
Filing Date: 2006-07-04
Classification: B60R,B62D,C21D,Y02P

Abstract:
1. A press formed article, including an intermediate top portion which extends in a longitudinal direction and a pair of blade portions which are both bent from said intermediate top portion and extend in said longitudinal direction, with a direction of said bend being a lateral direction thereof, wherein a hardening region where hardening has been performed and a non-hardening region where hardening has not been performed are provided longitudinally and laterally within at least said pair of blade portions and an area ratio between said hardening region and said non-hardening region in said lateral direction is a ratio for achieving a demanded strength and changes along said longitudinal direction, wherein said hardening region also exists on both sides of said intermediate top portion in the direction perpendicular to said longitudinal direction within said intermediate top portion, a non-hardening region exists between said hardening regions within said intermediate top portion and said non-hardening region within said intermediate top portion is formed with a hole.