Front body structure for vehicle
AssigneeNissan Motor Co., Ltd.
InventorHidetsugu Saeki
Life of this patent
Estimating the term…
Abstract
A vehicle front body structure includes a side-member front area 11F inclined outwardly in the width direction of a vehicle as directing ahead of the vehicle, a strength control mechanism C provided in the side-member front area 11F, a sub-side member 20 extending from the vicinity of a continuous base of the side-member front area 11F toward the front of the vehicle, substantially straight to an extension of a side-member rear area 11R. The front end of the sub-side member 20 is connected with the rear face of a bumper reinforcement 12. The sub-side member 20 is provided with a deformation-mode control mechanism D that allows the sub-side member 20 to be deformed inwardly in the width direction of the vehicle due to a collision input and interferes with a power unit P, forming an impact load transfer mechanism B.
Claims21
A vehicle front body structure, comprising:
- a pair of longitudinal structural members;
- a front compartment formed inside the longitudinal structural members;
- a power unit connected to the longitudinal structural members and placed in the front compartment;
- and
- an impact load transfer mechanism formed outside the front compartment and changing an impact load direction to a lateral direction for transmitting an impact load to one of the longitudinal structural members and the power unit directly.
A vehicle front body structure, comprising:
- a pair of longitudinal structural members;
- a front compartment formed inside the longitudinal structural members
- a power unit connected to the longitudinal structural members and placed in the front compartment;
- and
- an impact load transfer mechanism formed outside the front compartment and changing an impact load direction to a lateral direction for transmitting an impact load to one of the longitudinal structural members and the power unit directly,
- wherein the longitudinal structural members comprise a pair of side members arranged on left and right sides of the front compartment to extend in the fore-and-aft direction of the vehicle, the side members each having a reinforcing part for mounting the power unit,
- wherein the vehicle front body structure further comprises a bumper reinforcement connected with the front ends of the side members to extend in the width direction of the vehicle,
- wherein the impact load transfer mechanism comprises:
- a side-member front area arranged in front of each reinforcing part to incline outwardly in the width direction of the vehicle, the side-member front area being provided with a strength control mechanism that controls a strength of each side member so that the maximum stress generated in the front part of each one of sections arranged in the longitudinal direction of each side member becomes more than or close to the maximum stress generated in the rear part of the each one of the sections;
- a sub-side member arranged so as to extend from each reinforcing part toward the front of the vehicle, substantially straight relative to an extension of a side-member rear area, the sub-side member connected to the bumper reinforcement at a front end, of the sub-side, member;
- and
- a deformation-mode control mechanism that allows the sub-side member to be deformed inwardly in the width direction of the vehicle due to the impact load, thereby to render the sub-side member interfered with the power unit.
A vehicle front body structure, comprising:
- a pair of longitudinal structural members;
- a front compartment formed inside the longitudinal structural members;
- a power unit connected to the longitudinal structural members and placed in the front compartment;
- and
- impact load transfer means for changing an impact load direction to a lateral direction for transmitting an impact load to one of the longitudinal structural members and the power unit directly, the impact load transfer means formed outside the front compartment.
Dependencies are inferred from the claim text.