A door structure of a vehicle includes: an outer panel (4); an inner member (5, 11A) arranged on an inner side of the outer panel in a vehicle width direction; a rigid member (9) arranged between the inner member (5, 11A) and the outer panel (4); and a vibration suppression member (22) arranged between the outer panel (4) and the rigid member (9). The outer panel (4) includes a hem section (10f, 10r, 10u) disposed on a periphery thereof and connected to the inner member (5, 11A) by swaging. The vibration suppression member (22) includes a damping material (22A to 22C) located adjacent to the hem section (10f, 10r, 10u) and being in contact with the outer panel (4) and the rigid member (9).

To improve bending rigidity of a side sill against an inward load in a vehicle width direction during a lateral collision while suppressing a weight increase of the side sill, a vehicle side body structure includes: a side sill; a wheel house, a front lower portion; a center pillar; and a door formed to be opened at a position above the side sill and behind the center pillar. A rear portion of an impact bar provided to the door overlaps the rear portion of the side sill in side view when the door is closed. The side sill includes a reinforcing member reinforcing bending rigidity against an inward load. The side sill reinforcing member is provided in an intermediate portion of the side sill where the center pillar is located and the rear portion of the side sill in a longitudinal direction of the side sill.

There are provided a vehicle-body frame member forming an opening portion for entrance at a vehicle side part and a front side door provided so as to open and close the opening portion. The vehicle-body frame member comprises a side sill, the front side door comprises a door panel portion provided with an inner lower portion which overlaps with the side sill in a vehicle wide view and reinforcement portions provided at three side-portions of a peripheral part of the door panel portion which are continuous and include the inner lower portion such that the reinforcement portions overlap with the vehicle-body frame member in a vehicle side view.

A hinge reinforcement comprises a reinforcement face portion which faces a door-hinge attachment face portion, an inside connection portion which longitudinally extends in a direction approaching a door center from an inside end portion, in a vehicle width direction, of the reinforcement face portion and is fixed to a door inside face portion, a first joint portion which longitudinally extends in the direction approaching the door center from the reinforcement face portion and is fixed to an impact bar, and a second joint portion which longitudinally extends in a direction away from the door center from an outside end portion, in the vehicle width direction, of the reinforcement face portion and is fixed to a door flange portion.

There are provided a vehicle-body frame member forming an opening portion for entrance at a vehicle side part and a front side door provided so as to open and close the opening portion. The vehicle-body frame member comprises a side sill, the front side door comprises a door panel portion provided with an inner lower portion which overlaps with the side sill in a vehicle wide view and reinforcement portions provided at two side-portions of a peripheral part of the door panel portion which are continuous and include the inner lower portion such that the reinforcement portions overlap with the vehicle-body frame member in a vehicle side view.

The vehicle door assembly includes an outer panel which has a rocker sill area and a beltline area. A reinforcement member, which is made of one or more pieces, is attached with the outer panel along at least a portion of an outer periphery of the outer panel. The door assembly further includes a module which is made as a single integral piece and is fixedly attached with the reinforcement member. The module has an inner beltline reinforcement and supports a pair of window channels and a window regulator for controllably raising and lowering a window between an open position and a closed position.

Provided is a configuration that makes up for a lack of tensile rigidity and a lack of collision properties at the same time. [Solution] An automotive exterior panel according to the present invention: an exterior material 110; and a reinforcing member 120 that is in contact along an automobile inside surface of the exterior material 110 and of which a second moment of area in a direction orthogonal to the exterior material is less than or equal to 15,000 mm4 in a cross section orthogonal to a longitudinal direction of the 10 reinforcing member. By this configuration, the second moment of area in a direction orthogonal to the longitudinal direction of the reinforcing member 120 is made less than or equal to 15,000 mm4, and hence a lack of tensile rigidity can be made up for at the same time.

A side vehicle-body structure of a vehicle includes a rear door having a center pillar extending in a vehicle up-down direction built in a front portion of the rear door, and a front door having a door impact bar extending in a vehicle front-rear direction built in the front door. A rear end of the door impact bar is disposed to overlap with the center pillar in a vehicle side view, a reinforcement gusset that connects a lower portion of the front door and a rear portion of the door impact bar to each other is included in an inner portion of the front door, and a side sill extending in the vehicle front-rear direction is adjacently disposed below a connecting portion of a lower portion of the front door at which the lower portion of the front door is connected to the reinforcement gusset.

A vehicle door according to an exemplary embodiment enhances coupling strength through structural coupling by molding a window frame of a door module assembled between a door trim and the door panel with a separate aluminum injection product, and insert-injection molding a coupling portion of the window frame to a module body, and a groove is formed along the coupling portion of the window frame coupled to the module body to easily distinguish respective parts and serve to carry out sealing in injection molding.

A vehicle door structure that can displace inward a region directly above a lower end of a door built-in center pillar while preventing displacement of a door lower surface to absorb lateral collision energy immediately after lateral collision is provided. In the vehicle door structure including a door built-in center pillar extending from an upper end to a lower end at a front end in a rear door of a biparting door system, a reinforcement is provided on a door lower surface below the door built-in center pillar, a part of the lower end of the door built-in center pillar is mounted to the reinforcement, and a low rigidity portion having lower rigidity than an upper part the door built-in center pillar is provided directly above the lower end of the door built-in center pillar.