Vehicle rear structure

The rear structure of vehicles with bumper reinforcements as foot steps is enhanced by a plate-shaped reinforcement plate with increased vertical width, addressing intrusion and deformation issues during collisions, ensuring effective load absorption and departure angle maintenance.

JP7740522B2Active Publication Date: 2025-09-17MITSUBISHI MOTORS CORP
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Patent Information

Application Number
JP2024511915
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2022-03-29
Filing Date
2023-03-20
Publication Date
2025-09-17
Estimated Expiration
2043-03-20

AI Technical Summary

Technical Problem

In vehicles where the bumper reinforcement serves as a foot step, the thickness in the vertical direction is restricted, leading to potential intrusion of another vehicle during a rear collision, compromising the protection of the rear portion.

Method used

A rear structure with a pair of arms extending rearward from the side frames, a rear bumper reinforcement functioning as a foot step, and a plate-shaped reinforcement plate with a larger vertical width than the bumper reinforcement, connected to enhance load absorption and prevent intrusion.

Benefits of technology

The rear structure effectively absorbs collision loads, suppresses deformation, and maintains a sufficient departure angle, enhancing protection and drivability by preventing the other vehicle from sliding under the vehicle.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

Provided to rear bumper reinforcement (24) is a reinforcing plate (26) that has a length along the direction in which the rear bumper reinforcement (24) extends, a thickness along the front-back direction of the vehicle, and a width along the vertical direction. The width of the reinforcing plate (26) in the vertical direction is greater than the width of the rear bumper reinforcement (24) in the vertical direction. Thus, it is possible to increase the strength and rigidity of the rear bumper reinforcement (24) with the reinforcing plate (26), despite the rear bumper reinforcement (24) being formed such that the thickness thereof along the vertical direction is a small dimension, in order for the rear bumper reinforcement (24) to also serve as a step.
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Citation Information

Patent Citations

  • Step stay

    JP2001001953A

  • Vehicular bumper structure

    JP2006036079A

  • Bumper structure for automobile

    JP2008006961A

  • Underrun protector device

    JP2012131449A

  • Underrun protector structure

    JP2013203129A