Side vehicle-body structure of automotive vehicle

Abstract

The invention provides a side vehicle-body structure of an automotive vehicle. The side vehicle-body structure can increase the effects of impact absorption when an impact load is input to a side door from a vehicle body side and the effects of load diffusion to each part of the vehicle body. The side vehicle-body structure includes: a side door which is formed on a side surface part of the vehicle body and opens and closes an opening part for getting on and off from a rear seat; an anti-collision pole which is disposed on the side door in a manner that the anti-collision pole extends along the front and rear direction of the vehicle body; a side plate internal side member which constitutes a vehicle side part which includes a peripheral part on vehicle body rear side of the opening part for getting on and off; a first reinforcing part which extends along the peripheral part on the vehicle body rear side of the opening part for getting on and off and engages the outside of a compartment of the side plate internal side member so as to form a first closed cross section with the side plate internal side member; a second reinforcing member which is configured such that the second reinforcing member is partly overlapped with the anti-collision pole when the side door is closed if viewed from the vehicle body side and the second reinforcing member engages the outside of the compartment of the first reinforcing member so as to form a second closed cross section with the first reinforcing member.

Description

technical field [0001] The present invention relates to a side body structure of an automobile provided with a side door for opening and closing an opening for getting on and off formed on a side portion of the vehicle body, and belongs to the technical field of body structures of automobiles. Background technique [0002] In an automobile provided with a rear door for opening and closing the opening for getting in and out of the rear seat, the peripheral portion of the opening for getting in and out of the rear seat in the side portion of the vehicle body is formed to receive the rear door from the inside in the vehicle width direction. The door receiving part of the peripheral part. In this type of automobile, in order to prevent the deformation of the rear side door receiving the impact load from the side of the vehicle body and the rear body receiving the impact load through the rear side door entering the interior of the compartment, various attempts have been made in t...

AI Technical Summary

Problems solved by technology

When such buckling of the reinforcing member occurs, the load transmission function of the reinforcing member is lost, so that the load cannot be effectively distributed to the various parts of the vehicle body.

[0013] In order to solve the above problems, further strengthening measures such as increasing the plate thickness of the reinforcing parts or installing reinforcements in the closed section are required, but in this case, a new problem of increasing the weight of the vehicle body arises.

[0014] In addition, in Patent Document 2, the entry of the rear door into the passenger compartment is suppressed by the engagement of the rear side door and the door receiving part. In order to absorb the impact energy or distribute the load to various parts of the vehicle body when the impact load is input from the side of the vehicle body, it is necessary to take measures in the door. Measures such as adding components for energy absorption and load transmission to the receiving part, but in this case, the weight of the vehicle body will also increase

In addition, it is not preferable in terms of appearance design to provide an engaging pin that protrudes toward the interior of the vehicle compartment on the rear side door.

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