Backrest Release System Segmentation
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Solution Overview
Problem
Existing vehicle seat backrest release systems lack an efficient mechanism for easily releasing the latch mechanism to allow pivotal movement of the backrest relative to the seat bottom, which is necessary for easy entry and exit, especially in vehicles where the seat needs to be adjusted or moved forward.
Innovation Solution
A backrest release system comprising a first portion mounted on the backrest support structure with a pivotable retainer connected to the latch mechanism and a second portion with a handle pivotally attached to a cover on the back panel, allowing alignment and attachment to the retainer for easy operation, utilizing a Bowden cable assembly for releasing the recliner mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional integrated backrest release system is used, then the structural integrity is maintained, but the ease of assembly and operation is reduced
Solution Approach 1:
The backrest release system is divided into two separate portions: a first portion including the carrier and retainer that attaches to the backrest support structure, and a second portion including the cover and handle that attaches to the back panel. This segmentation allows each portion to be assembled and tested independently, significantly improving ease of assembly while maintaining the functional integrity of the complete system.
2Reliability
If the handle is fixedly attached to the retainer, then the operational reliability is improved, but the manufacturing complexity increases
Solution Approach 1:
The handle is pre-attached to the cover portion during manufacturing, creating a pre-assembled second portion that can be independently produced and quality-tested. This preliminary action ensures the handle-retainer connection is reliably established before final assembly, improving operational reliability while allowing parallel manufacturing processes that reduce overall production complexity.
Data Source
AI summary
A backrest release system is provided for a seat having a seat bottom, a pivotable backrest, and a releasable latch for locking the backrest relative to the seat bottom. The system comprises a first portion that is mountable to a support structure of the backrest. The first portion includes a carrier and a retainer that is attachable to the carrier so that the retainer is pivotable relative to the carrier. Furthermore, the retainer is connectable to the latch. The system also includes a second portion including a cover mountable on a back panel of the backrest, and a handle configured to be pivotally attached to the cover. The second portion is configured to be attached to the back panel prior to positioning the back panel on the backrest support structure, and the second portion is alignable with the first portion so that the handle may be attached to the retainer.