Seat Back Frame Reinforcement Beads for Rigidity
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Solution Overview
Problem
Conventional seat back frames in vehicles lack sufficient rigidity, particularly at the outer peripheral portion, which can lead to inadequate overall structural integrity.
Innovation Solution
A reinforcement structure for the seat back frame is introduced, featuring a panel member with an outer peripheral flange formed by bending the panel member's edge and a plurality of outer peripheral beads arranged circumferentially, enhancing the rigidity of the outer peripheral portion by integrating these features with the frame members.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If frame members are joined to the panel member only in the vicinity of the outer peripheral portion, then the manufacturing process is simplified, but the rigidity of the outer peripheral portion itself is insufficient
Solution Approach 1:
The patent applies local quality by forming beads specifically at the outer peripheral portion of the panel member where frame members are joined. This creates localized reinforcement exactly where needed - the outer peripheral portion receives enhanced rigidity through bead formation, while the rest of the panel member maintains its original simple structure. This resolves the contradiction by improving local strength without complicating the overall manufacturing process.
Solution Approach 2:
The patent applies preliminary action by forming beads on the panel member before joining the frame members. The bead formation is performed in advance on the outer peripheral portion, creating pre-reinforced areas that will subsequently receive frame members. This preliminary reinforcement ensures that the outer peripheral portion has sufficient rigidity before the assembly process, resolving the contradiction between manufacturing simplicity and structural strength.
Data Source
AI summary
A reinforcement structure for a seat back frame includes a panel member and a frame member joined to the panel member. The panel member includes an outer peripheral flange formed by bending an outer peripheral portion of the panel member, and the outer peripheral flange includes a plurality of outer peripheral beads formed thereon and arranged at intervals in a circumferential direction of the panel member.