Lightweight Optimization of Headrest Modules Including Flat-Plate Sliding Brackets

摘要

The rear-folding-type seat may collide and cause seat damage due to interaction with the front seat when the drawn-out headrest is folded. This study investigated the mechanism of a folding-type seat that keeps the headrest free from interference with the front seat when the rear seat is being folded, as well as a method for weight reduction of automobile parts. In this paper, the seat back interlocking mechanism is also presented. The no occurrence of interference was verified via trajectory analysis. Furthermore, this study proposes a module design for the proposed mechanism, and finite element analysis (FEA) was conducted to verify that the proposed structure satisfies the static strength requirements in compliance with the relevant regulations. Furthermore, the design of experiments (DOE) method was used to propose a weight-reduction method for the designed automotive components and its feasibility was verified.