Modular Cushion Frame With Legrest for Ultra-Comfort Seat Tilting
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Solution Overview
Problem
Existing seat assemblies in automotive vehicles require significant modifications to integrate cushion tipping functions and legrest mechanisms, and there is a need for enhanced comfort features like the ultra comfort position during occupant waiting periods.
Innovation Solution
A cushion frame module with a cushion tipping module and a legrest module that can be easily integrated into various seat assemblies, allowing for minimal structural modifications, enabling the seat to pivot between upright and ultra comfort positions and deploy a legrest mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If cushion tipping function and legrest mechanism are integrated into existing seat assemblies, then occupant comfort is enhanced, but device complexity increases
Solution Approach 1:
The seat assembly is divided into modular components: a core seat structure and a separate cushion frame module. The cushion frame module contains the cushion tipping mechanism and legrest mechanism as distinct sub-assemblies, allowing independent integration and simplifying the overall system architecture.
Solution Approach 2:
The cushion tipping mechanism and legrest mechanism are nested within the cushion frame module structure. The legrest mechanism is further nested within the cushion frame module, with its components arranged compactly to minimize space requirements and reduce overall device complexity.
2Adaptability or versatility
If cushion tipping function and legrest mechanism are added to a range of different core seat structures, then versatility is improved, but manufacturing complexity increases
Solution Approach 1:
The cushion frame module is designed as a universal component that can be integrated into multiple types of core seat structures (front row seats, rear row seats, different manufacturer designs). The module maintains consistent internal architecture while adapting to external variations in core seat structures, reducing manufacturing complexity across different applications.
Solution Approach 2:
By separating the cushion frame module from the core seat structure, the patent enables standardized mass production of the cushion frame module that can then be adapted to various core seat structures through modular assembly, reducing overall manufacturing complexity.
3Ease of manufacture
If minimal modifications are made to existing core seat structures, then ease of manufacture is improved, but adaptability may be limited
Solution Approach 1:
The cushion frame module incorporates universal mounting interfaces and standardized connection points that enable integration with multiple core seat structure types from different manufacturers and vehicle rows, maximizing adaptability while maintaining ease of manufacture through standardized assembly procedures.
Data Source
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AI summary
A cushion tipping module is configured to be assembled between a seat cushion and a track assembly of a vehicle seat assembly. The cushion tipping module is configured to tip the seat cushion between an upright seating position and a rearward inclined position. The cushion tipping module includes opposing lift links fixedly coupled to distal ends of a transverse tube and configured to be operatively coupled to the seal cushion, an attachment link fixedly coupled to the transverse tube and pivotably coupled to a threaded nut, an electric motor operatively coupled to a lead screw meshingly engaged with the threaded nut, and motor mounting bracket configured to be assembled with the track assembly.