Mazda Motor Corporation

Kobe Steel, Ltd.

Mazda Motor Corporat Ion

Tadashi Yamazaki

Takeshi Nakamura

Toshiyuki Gendo

Keisuke Ebisumoto

Naoyuki Irie

Manabu Tatsuda

Masatoshi Yoshida

Ippei Kuroda

Daisuke Kiyoshita

Kazuhiro Tanaka

Yasuhiko Nishida

Yuki Kataoka

Ryotaro Hirata

Masayoshi Ono

Koji Kuwabara

Kazunari Shimada

A vehicle body structure includes a side sill having a closed cross-section portion, and a reinforcement body inside the closed cross-section portion and joined to the side sill. The reinforcement body comprises first and second reinforcement portions. The first reinforcement portion has a first bonding surface on the upper side and is joined to an inner wall of the closed cross-section portion at a portion other than the first bonding surface, and the second reinforcement portion has a second bonding surface facing the first bonding surface from above the first bonding surface, and is joined to the inner wall at a portion other than the second bonding surface. The first and second bonding surfaces are bonded together through a damping member made of an adhesive material. The first and second bonding surfaces are disposed at an inclination angle of 30 degrees or less with respect to a horizontal plane.

Vehicle body structure for vehicle, and manufacturing method of vehicle

A vehicle side body structure having a pillar member including an upper member and a lower member that is joined to the upper member and has a rigidity lower than the upper member, the pillar member partitioning a side part opening of a body into a front part and a rear part; a side door disposed adjacently to the pillar member; and an impact bar provided in the side door, in which a front end portion of the impact bar overlaps with both the upper and lower members in side view while the side door is closed. The upper member has a reinforcing member and the front end portion of the impact bar covers a region of the upper member in which the reinforcing member is present, a region of the upper member in which the reinforcing member is not present, and the lower member in side view.

Vehicle side body structure

A front vehicle-body structure for appropriately dispersing a collision load includes a floor panel; a side sill; a floor frame extending in a front-rear direction on a vehicle-width-direction inner side of the side sill; and a first cross member connecting the side sill and the floor frame to each other in the vehicle width direction. The side sill has a raised wall and an upper wall portion positioned on the vehicle-width-direction inner side in a cross-section orthogonally intersecting with the front-rear direction and extending in an up-down direction, a corner extending in the front-rear direction is formed between the raised wall and the upper wall portion, and a first joint member and a corner reinforcement member that reinforce the raised wall and the corner are provided at a position to which the first cross member is connected in the front-rear direction on an inner side of the side sill.

Front vehicle-body structure of vehicle

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.

To improve bending rigidity of a side sill against a load toward an inner side in a vehicle width direction during a lateral collision while suppressing a weight increase of thereof by providing minimum reinforcement, the side sill has a closed cross-sectional space extending in a vehicle longitudinal direction and includes a first upper reinforcing member that reinforces bending rigidity against a load toward the vehicle width inner side. The first upper reinforcing member is configured to be partially provided in a cross-sectional view that is perpendicular to a longitudinal direction of the side sill and to extend along a longitudinal direction of the side sill such that at least a part thereof overlaps a center pillar joined portion, to which a center pillar is joined, in a vehicle side view at a height position of the center pillar joined portion.

To reduce the amount of intrusion into the vehicle interior at the time of a side collision and achieve weight reduction, a vehicle side body structure includes a pillar member that partitions a side part opening of a body into a front part and a rear part, and the pillar member includes an upper member made of high-tensile steel and a lower member joined to the upper member, made of high-tensile steel, and having a rigidity lower than the upper member. The upper member has a reinforcing member made of high-tensile steel with a tensile strength higher than the upper member and the lower member and the lower half of the reinforcing member are shaped to have a lower bending rigidity against bending toward the inside in the vehicle width direction, toward the lower end of the reinforcing member.

In an upper vehicle-body structure including: a roof side rail disposed at an upper and vehicle-width-direction outer side portion of the vehicle and including a closed cross-section extending in a vehicle front-rear direction; a pillar extending downward from an intermediate portion in the vehicle front-rear direction of the roof side rail; and a roof rail reinforcement disposed inside the intermediate portion in the vehicle front-rear direction of the roof side rail and extending in the front-rear direction, the roof rail reinforcement including front and rear ends bent toward a vehicle-width-direction outer side, the roof rail reinforcement being configured to partition a space inside the intermediate portion of the roof side rail in the vehicle front-rear direction and a vehicle width direction, the roof side rail includes a roof rail outer and a roof rail inner defining, jointly with the roof rail outer, a closed cross-section, the pillar includes a pillar outer and a pillar inner defining, jointly with the pillar outer, a closed cross-section extending in an up-down direction, and the roof rail reinforcement is at least fixed to the roof rail outer, the roof rail inner, and the pillar inner.

Upper vehicle-body structure

To suppress such twisting of a side sill that an upper portion thereof is displaced inwardly with respect to a lower portion thereof during a lateral collision while suppressing a weight increase of the side sill, a vehicle side body structures includes: a side sill that has a closed cross-sectional space extending in a vehicle longitudinal direction; and a center pillar extending upward from the side sill. The center pillar is configured such that an upper direct upward portion located above a direct upward portion, which continues from the side sill and is located immediately above the side sill has a higher rigidity against an inward load than the direct upward portion. In the closed cross-sectional space, sections are provided in a front and/or rear portion of a center pillar arrangement region, in which the center pillar is located, in a longitudinal direction.

To improve bending rigidity of a side sill against an inward load during a lateral collision while suppressing a weight increase of the side sill, a vehicle side body structure includes a side sill that has a closed cross-sectional space extending in a vehicle longitudinal direction and a center pillar. A pillar inner provided in the center pillar has a pillar inner upper and a pillar inner lower. In a longitudinal direction of the side sill, an overlapping portion in which the pillar inner upper and the pillar inner lower overlap each other in side view in the closed cross-sectional space of the side sill is provided. The closed cross-sectional space further includes sections, each of which partitions the closed cross-sectional space in the longitudinal direction. These sections are joined to the overlapping portion and an inner surface, which faces the closed cross-sectional space, in the side sill.

Provided is a structure for a front part of a vehicle, including a vehicle main body, a pair of suspension support portions, and a cowl member connected to the pair of suspension support portions. The cowl member has: an inner part connection portion which has a shape extending continuously in a vehicle width direction between the pair of suspension support portions and which interconnects respective inner parts of the pair of suspension support portions in the vehicle width direction; and a water drain portion which is provided backward of the inner part connection portion in a front-rear direction of the vehicle and drains water toward a side part of the vehicle in the vehicle width direction. The inner part connection portion has a thickness larger than a thickness of the water drain portion.

Structure for front part of vehicle

A method for manufacturing a vehicle body member from a joined sheet. The joined sheet is press formed into a vehicle body member with a predetermined shape by: welding a second sheet material to a first sheet material at a plurality of points including a first joint and a second joint separated from each other; press forming the joined sheet so that a ridge crossing an imaginary line segment connecting the first joint and the second joint is formed in a portion where the first sheet material overlaps the second sheet material; and before the joining step, forming a displacement facilitating portion, which facilitates displacement of the second sheet material relative to the first sheet material in a longitudinal direction of the imaginary line segment, in a portion corresponding to between the first joint and the second joint in the second sheet material.

Method for manufacturing vehicle body member and vehicle body member for vehicle

In a side vehicle body structure for a vehicle, a reinforcing panel includes: a main reinforcing portion disposed so as to extend in a longitudinal direction of a side face portion along a first straight portion, a second straight portion, and a portion of a body panel which connects the first straight portion and the second straight portion; a first upper-end reinforcing portion disposed so as to extend upward toward the front of a vehicle body from an upper edge of the main reinforcing portion along a first curved portion; and a second upper-end reinforcing portion disposed so as to extend upward toward the rear of the vehicle body from the upper edge of the main reinforcing portion along a second curved portion.

Side vehicle body structure for vehicle and method for manufacturing vehicle pillar member

An instrument panel which is supported at a cowl panel at a front-side portion thereof is provided. The cowl panel includes an upper face wall which faces to a windshield from below, a bending portion which is formed at a rear end of the upper face wall and bendable in a vehicle collision, and a rear face wall which extends downward from the bending portion and has a lower portion connecting to a dash panel. The instrument panel includes a first restriction portion to restrict a downward move of the instrument panel by contacting the upper face wall of the cowl member, and a second restriction portion to restrict an upward move of the instrument panel by said rear face wall of the cowl member at a lower portion of the front-side portion thereof.

Growing community of inventors

Hiroshima, Japan

Tadashi Yamazaki