Body structure
AssigneeMitsubishi Heavy Industries, Ltd.
InventorsHiroyuki Mochidome, Yoshinori Mitsui, Naofumi Nagaike, Tatsuaki Hayashida
Life of this patent
Estimating the term…
Abstract
In a front gable portion (13) of a rubber-tired new traffic vehicle (11), an outer bumper (45) is fixed to the exterior of an inner bumper (32) constituting an underframe (33), front beams (47, 48) and side beams (49) are constructed between a roof frame (42) and the outer bumper (45), the front beams (47, 48) are inclined and curved in harmony with the streamlined design of the vehicle (11), and straight portions (47a, 48a) of predetermined lengths are formed in lower end portions of the front beams (47, 48) along a vertical direction.
Claims19
A vehicle body structure comprising a suspension system and a crush zone for absorbing an impact force in a collision on a front head side of a vehicle relative to a passenger compartment, the vehicle body structure comprising
- at least one versicle beam within the crush zone, the vertical beam having a vertical length 2L that is set according to an amount of vertical displacement L during travel of the vehicle,
- wherein the vertical displacement L is predetermined by tests or by calculations based on at least one of expected road conditions, a vehicle body rigidity of the vehicle body structure, and a performance of the suspension system.
A vehicle body structure comprising a crush zone for absorbing an impact force in a collision provided on a front head side of a vehicle relative to a passenger compartment, and a straight portion extending along a vertical direction formed in a front portion of a vertical beam as a constituent member constituting the crush zone,
- characterized in that the vertical beam connects a roof frame and an underframe, a bumper is connected to the underframe, and the bumper has a central portion protruding forwardly of the vehicle and has buckling strength changing means provided in opposite side portions,
- characterized in that the opposite side portions of the bumper are weakened relative to the central portion by the buckling strength changing means, and
- characterized in that the buckling strength changing means comprises holes formed in the bumper.
A vehicle body structure comprising a crush zone for absorbing an impact force in a collision provided on a front head side of a vehicle relative to a passenger compartment, and a straight portion extending along a vertical direction formed in a front portion of a vertical beam as a constituent member constituting the crush zone.
- characterized in that a cushioning member located behind the constituent member and adapted to buckle by the impact force, thereby relieving the impact force, is provided on one side in a vertical direction of the straight portion, and an auxiliary member is provided for bending the constituent member away from the cushioning member when the impact force is inputted.
A vehicle body structure comprising a crush zone for absorbing an impact force in a collision provided on a front head side of a vehicle relative to a passenger compartment, and a straight portion extending along a vertical direction formed on a front portion of a vertical beam as a constituent member constituting the crush zone,
- characterized in that a plurality of cushioning members for relieving the impact force by being buckled by the impact force are arranged side by side on right and left sides of the vehicle behind the straight portion, and front end portions of the cushioning members are connected by a connecting member.
A vehicle body structure comprising a crush zone for absorbing an impact force in a collision provided on a front head side of a vehicle relative to a passenger compartment, and a straight portion extending a vertical direction formed in a front portion of a vertical beam as a constituent member constituting the crush zone,
- characterized in that a cushioning member for relieving the impact force by being buckled by the impact force is provided behind the straight portion, and a vertical restraining member for inhibiting vertical displacement, relative to a member to be collided with, in the collision is provided in a front end portion of the cushioning member, and
- characterized in that the vertical restraining member is constituted by fixing a plurality of horizontal engagement plates at predetermined intervals in a hollow box attached to the front end portion of the cushioning member.
Dependencies are inferred from the claim text.