Anchorage Bracket Wire Routing for Vehicle Seat Reliability
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Solution Overview
Problem
Vehicle seating assemblies face challenges in managing power and data lines without adding bulk or weight, while ensuring these lines are not damaged during seat movement, and maintaining a slim profile.
Innovation Solution
A vehicle seating assembly design featuring a seatback frame with a lower cross member and a back panel coupled to an anchorage bracket with retention clips and fastener slots, which secures the back panel and routes wiring efficiently across the lower cross member and anchorage bracket, utilizing wire harness features to manage wiring effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wire management structures are added to secure power and data lines during seat movement, then wire protection is improved, but device complexity and bulk increase
Solution Approach 1:
The patent combines wire management features directly into the anchorage bracket structure. The anchorage bracket integrates wire harness features including channels, clips, and routing paths, merging the structural support function with wire management function into a single component, thereby protecting wires without significantly increasing overall device complexity
Solution Approach 2:
The anchorage bracket serves multiple functions: it anchors the back panel to the seatback frame, provides structural support, and simultaneously manages wire harnesses through integrated features. This multi-functionality allows wire protection to be achieved without adding separate dedicated wire management components
2Reliability
If wire management structures are added to secure power and data lines during seat movement, then wire protection is improved, but the profile of the vehicle seating assembly becomes less slim
Solution Approach 1:
The wire harness features are nested within the anchorage bracket structure itself. Wire channels are formed as cavities within the bracket body, and wire routing paths are integrated into the bracket's geometric form, allowing wire management to be contained within the existing structural envelope without adding external bulk
3Strength
If traditional fastening methods are used to secure the back panel, then manufacturing simplicity is maintained, but anchorage strength during dynamic events is insufficient
Solution Approach 1:
The anchorage system uses multiple discrete fastener slots distributed at different locations on the anchorage bracket. These slots receive corresponding fasteners that engage with the seatback frame, dividing the anchorage function into multiple localized connection points that collectively provide strong anchorage while using simple, standardized fastening components
Data Source
AI summary
A vehicle seating assembly includes a seatback frame having a lower cross member. A back panel is operably coupled to the seatback frame and includes internal posts configured to receive a retention clip. The retention clip includes first and second catches that engage notches on the internal posts of the back panel. The retention clips further include retention hooks. An anchorage bracket is operably coupled to the lower cross member and includes fastener slots configured to receive the retention hooks to secure the back panel with the anchorage bracket. Wire harness features are disposed on distal ends of the anchorage bracket. Wiring is routed between the lower cross member and the anchorage bracket.