Modular Headrest Assembly with Overmolded Wings for Rear Seat Access
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Solution Overview
Problem
High performance vehicle seat assemblies require adjustable headrests for accommodating helmets and easy access to rear seats, while maintaining structural support and weight considerations.
Innovation Solution
A modular headrest assembly with a support member and interconnected wings, coupled to a front and rear panel system, allowing for adjustable positioning and easy access, integrated with a recliner mechanism for seatback movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a fully rigid racing seat is used, then structural support and occupant safety are improved, but access to rear seats and comfort features deteriorate
Solution Approach 1:
The seatback is designed with dynamic movement capability, allowing it to transition between an upright position (providing structural support) and a folded-forward position (enabling access to rear seats). This dynamic configuration resolves the contradiction by making the structure adaptable to different operational requirements.
Solution Approach 2:
The seat assembly is divided into separable components including the seat pan, seatback, and headrest assembly. This segmentation allows the seatback to be independently folded or adjusted without compromising the overall structural integrity of the seating system.
2Reliability
If a fully rigid racing seat is used, then occupant safety is improved, but comfort and convenience features deteriorate
Solution Approach 1:
The headrest assembly incorporates adjustable positioning mechanisms and removable components that allow it to adapt between providing maximum safety support during racing and accommodating comfort features like helmets or headrest cushions for daily driving.
Solution Approach 2:
The headrest assembly is designed to serve multiple functions: providing structural support for safety, accommodating helmets, and offering adjustable positioning for comfort. This multi-functionality resolves the contradiction between reliability and adaptability.
3Adaptability or versatility
If headrest adjustability features are added, then adaptability for helmets and comfort is improved, but device complexity increases
Solution Approach 1:
The headrest assembly is segmented into modular components including the headrest bun, support member, and adjustment mechanisms. This modular design allows for adjustability features while managing complexity through standardized, interchangeable parts.
Solution Approach 2:
The headrest incorporates dynamic adjustment capabilities allowing it to move between fixed and adjustable positions. This dynamic feature provides adaptability for different head sizes and helmet types while using simple mechanical adjustment mechanisms rather than complex systems.
Data Source
AI summary
A headrest assembly for a vehicle seat includes a front panel with a base portion and a support portion. A rear panel includes a base portion and a support portion. A support member includes first and second legs that are interconnected by an upper cross member. First and second support wings are coupled to the first and second legs of the support member and outwardly extend therefrom. The base portion of the front panel couples to a front side of the first and second support wings. The base portion of the rear panel couples to a rear side of the first and second support wings. The support wings are overmolded to the support member along with one or more attachment features to interconnect the front and rear panels to one another around the support member.