An impact beam having a bent structure is provided. The impact beam is mounted at a lateral portion of each door in a vertical direction of a vehicle body and supports the door in the vertical direction. An upper end of the impact beam extends to support a roof panel and a lower end of the impact beam extends to a lower roller mounting portion. The impact beam is bent in an L shape and a T shape based on a curvature of the door.

A side vehicle-body structure of a vehicle capable of efficiently absorbing side collision energy while downsizing an energy absorbing material. The side vehicle-body structure includes a center pillar in which a lower end side is positioned on a vehicle-width-direction outer side with respect to an upper end thereof. The center pillar includes a breakage inducing portion that is provided to be close to a lower portion of an outer wall of the center pillar and induces breakage at time of a side collision, and a step-down portion provided in a corner portion of a center pillar outer wall of the breakage inducing portion. An energy absorbing material is disposed between the step-down portion 3 and an inner panel.

A center pillar structure may include a center pillar inner upper connected to a side inner, a center pillar inner connected to the center pillar inner upper in up and down directions, a center pillar reinforcement outer connected to a front pillar reinforcement outer and connected to the center pillar inner along the up and down directions, a center pillar reinforcement disposed along the up and down directions on the inner side between the center pillar inner and the center pillar reinforcement outer, and coupled between front/rear flange combined portions of the center pillar inner and the center pillar reinforcement outer, and a seat belt reinforcement shaped corresponding to the center pillar reinforcement, and connected to the center pillar reinforcement to form an inner closed section along the up and down directions.

A vehicle bodywork panel is formed by an outer wall supported by a structural lining. The structural lining is produced by molding a plastic or composite material. The structural lining may include stiffeners arranged to provide said bodywork panel with a given amount of mechanical strength. One or more added connection elements connect separate fastening points disposed on the structural lining and each end of each of the connection elements is inserted into a housing disposed on a stiffener. The rigidity of the connection elements is adapted to suppress a vibration response of the stiffeners. The housing and the connection element may form a flush-mounted connection.

A vehicle door structure includes: a door having a door body defining a closed section with a door inner panel and a door outer panel; an engaging member configured to hold the door in a closed and stopped state by engaging with an engaged member; and a load transmitting member configured to, when a load in a direction perpendicular to a design surface on a vehicle cabin outer side of the door outer panel is input, transmit the load toward a base end side of the engaging member and apply a load to the base end side of the engaging member in an engagement direction of the engaging member with the engaged member.

A vehicle structure includes a body panel, a first spring anchor, a second spring anchor; and an elongated spring having a first end disposed at a first spring anchor and a second end disposed at a second spring anchor. The spring is preloaded when assembled to form an apex between the first end and the second end. The apex is disposed adjacent to the body panel to provide an outward force on the body panel.

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 that suppresses displacement of a front wall portion of a center pillar to a vehicle-width-direction inner side with respect to a rear wall portion of the center pillar due to a side collision load. The side vehicle-body structure of the vehicle in which the center pillar does not exist on a body side includes a front door, and a rear door having a length in a front-rear direction shorter than a length of the front door in the front-rear direction. The rear door has a center pillar on a door side in a front portion, and a gusset member protruding from a rear wall portion of the center pillar to a door outer panel side with respect to an outer wall portion of the center pillar and having a receiving surface portion for a side collision load along the door outer panel.

A side vehicle-body structure of a vehicle capable of efficiently absorbing side collision energy while downsizing an energy absorbing material. The side vehicle-body structure includes a center pillar in which a lower end side is positioned on a vehicle-width-direction outer side with respect to an upper end thereof. The center pillar includes a breakage inducing portion that is provided to be close to a lower portion of an outer wall of the center pillar and induces breakage at time of a side collision, and a step-down portion provided in a corner portion of a center pillar outer wall of the breakage inducing portion. An energy absorbing material is disposed between the step-down portion 3 and an inner panel.

A rigidity reinforcing structure for B-pillarless opposite sliding doors may include a column impact beam which is vertically mounted at one side of the door to support the door in an up-down direction of a vehicle; a center rail which is horizontally mounted at a center portion of the door to support the door in a front-rear direction of the vehicle and allows the door to slide; and a lower impact beam which is horizontally mounted at a lower side of the door to support the door in the front-rear rear direction and has one end portion where an intersection portion between the lower impact beam and the column impact beam is formed.