Mazda Motor Corporation

Masaya Nishimoto

Takashi Narahara

Ippei Kuroda

Morihide Yamada

Shuichi Nakagami

Nobuhiko Yokoyama

Takahiro Aonuma

Ken Fujimoto

Atsushi Kawamoto

Akihiro Nakata

Kazuto Ishii

Shota Nakayama

A side sill in a lower part and on an outer side in a vehicle width direction of a vehicle and forms, in its inner part, a closed cross section that extends in a front-rear direction of the vehicle; the side sill includes a side sill outer that has a front end and a main body located behind the front end, an outer-side reinforcement member that has a shape extending along a front face part and a side face part of the front end of the side sill outer is joined to the front end from inside or outside the closed cross section, a front end of the main body is opposed to a rear end of a side face part of the outer-side reinforcement member in the front-rear direction, and the main body has a protrusion part that protrudes to the inner side of the closed cross section.

Vehicle-body lower structure of vehicle

A side sill that is disposed in a lower part and on an outer side in a vehicle width direction of a vehicle and has a side sill inner and a side sill outer which collaborate with each other to form a closed cross section extending in a front-rear direction of the vehicle; a wheel that is located ahead of the side sill outer; an outer-side reinforcement member that has a shape extending along a front face part and a side face part in a front end part of the side sill outer and is joined to the front end part from inside the closed cross section; and an inner-side reinforcement member that diagonally couples a front face part and a side face part in a front end part of the side sill inner to each other.

An airflow straightening structure of an automotive vehicle, in which slits for traveling-air peeling off (separation) and connection portions for cover reinforcing are adjacently provided at a rear-end edge portion of a cover having a substantially-flat airflow straightening face extending in a vehicle longitudinal direction, wherein protrusions are provided to extend in a direction crossing the vehicle longitudinal direction along a cover surface of the cover which are positioned in front of the connection portions.

Airflow straightening structure of automotive vehicle

A side body structure of a vehicle is provided, which includes a hinge pillar having a hinge pillar member forming, in a side part of the vehicle, a closed section space extending continuously in vertical directions of the vehicle, a side sill having a side sill member forming, on a rear side of the hinge pillar in the side part of the vehicle, a closed section space extending continuously in longitudinal directions of the vehicle, and a closed section space component forming, in a connecting part between a lower end part of the hinge pillar and a front end part of the side sill, a closed section space extending continuously in the longitudinal directions and connecting to the closed section space of the side sill on the rear side, the closed section space of the closed section space component having a vertical dimension that increases toward a front side.

Side body structure of vehicle

In a lower vehicle-body structure of a vehicle which comprises a suspension cross member, a side member, and first and second reinforcing members which are provided in a closed cross section formed by the side member and a slant portion, the suspension cross member being fixed by fastening a bolt which is inserted through the suspension cross member to a weld nut which is vertically fixed to a bottom plate portion of the side member, the first reinforcing member is joined to a front-side semicircular portion of a peripheral portion of the weld nut and the second reinforcing member is joined to a rear-side semicircular portion of the peripheral portion of the weld nut.

Lower vehicle-body structure of vehicle

A vehicle side body structure is provided, which includes a hinge pillar having inner and outer hinge pillar members forming, in a vehicle side part, a closed section space extending in vehicle vertical directions, a side sill having a member forming, on a rear side of the hinge pillar, a closed section space extending in vehicle longitudinal directions, and a closed section space component forming a closed section space extending continuously in the longitudinal directions along an outer surface of the inner hinge pillar member and connecting to the closed section space of the side sill on the rear side. The inner hinge pillar member is formed with a bend-facilitating portion adjacently disposed on the front side of a front end of the closed section space component, extending vertically continuously or intermittently, and protruding outwardly due to a stress concentration by a frontal impact load applied to the hinge pillar.

Growing community of inventors

Aki-gun, Japan

Masaya Nishimoto