To provide a vehicular door structure which reduces door approaching speed by keeping door reaction force at a high position since a door starts to approach into a vehicular interior by an input load from a side surface till finishing collision.
The vehicular door structure comprises a curved guard bar 14 arranged in a fore-and-aft direction in the door 1 and curved in a vehicular width direction, a linear straight guard bar 15 arranged in the fore-and-aft direction in the door 1, a hinge side coupling member 16 coupling first end portions 14a, 15a of the curved guard bar 14 and the straight guard bar 15 to a vicinity of a hinge 10, and a lock side coupling member 17 coupling second end portions 14b, 15b of the curved guard bar 14 and the straight guard bar 15 to a vicinity of a lock portion 12. Therefore, compressing force in an axial direction is generated in the curved guard bar 14 in regard to a side collision load to obtain high door reaction force, thereby the approaching speed of the door is reduced.
Iwa Saki Kokuni
Akira Kurihara
Kawamata Sumio
Masakazu Ito
Shunichi Takahashi
Toshio Takamatsu
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