Vehicle Seat Frame Memory Gear Layout for Easy Entry Weight Reduction
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Solution Overview
Problem
Conventional memory easy entry modules require additional gap management and are difficult to apply to various vehicle types due to the separation of back frames and recliners, which also complicates maintaining collision strength and reducing module weight.
Innovation Solution
A vehicle seat frame design that removes the latch from the conventional memory easy entry module, applies a memory function using a memory gear, and performs back-folding by the recliner, allowing for integrated operation without separating the back frame and recliner, thus maintaining collision strength and reducing module weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the back frame and recliner are separated in the conventional memory easy entry module, then the latch mechanism can be used for locking, but additional gap management is required and the module weight increases
Solution Approach 1:
The patent merges the back frame and recliner into a single integrated structure, eliminating the need for separate latch mechanisms and gap management systems. The integrated design allows the recliner to perform back-folding directly while maintaining structural integrity, thus removing the complexity of managing gaps between separate components.
2Reliability
If the back frame and recliner are separated in the conventional memory easy entry module, then the latch mechanism can be used for locking, but the module weight increases
Solution Approach 1:
The patent extracts and removes the latch mechanism from the system by integrating the back frame and recliner. This elimination of the latch component directly reduces the overall module weight while maintaining the necessary locking and positioning functions through the integrated structure's inherent stability.
3Weight of moving object
If the latch is removed and memory function is applied using memory gear, then the weight is reduced, but the collision strength must be maintained
Solution Approach 1:
The patent changes the structural parameters by integrating the back frame and recliner into a unified design with optimized geometry and material distribution. This integration maintains collision strength through improved structural continuity and load distribution, while the removal of the latch mechanism reduces overall weight.
4Reliability
If the conventional easy entry module is used, then the latch mechanism provides locking, but it is difficult to apply to various vehicle types
Solution Approach 1:
The integrated design of the back frame and recliner creates a universal structure that can be adapted to various vehicle types without requiring vehicle-specific latch mechanisms. The unified structure provides inherent locking and positioning capabilities that work across different applications, enhancing versatility and ease of application to various vehicle platforms.
Data Source
AI summary
A vehicle seat frame is proposed. The vehicle seat frame includes: a base frame arranged at a vehicle seat, having a placing space therein; a lock pin lever formed at a center portion of the placing space; an inside gear configured to rotate along an inner surface of the placing space in an operation of the lock pin lever; a gear plate arranged at a lower end of the base frame and an outside gear formed along an outer circumferential surface thereof, wherein when the lock pin lever is operated, the outside gear is engaged with the inside gear of the base frame so that the inside gear rotates.