Vehicle Seat Screen Structure for Slack-Free Reclining
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Solution Overview
Problem
Existing vehicle seat designs with cover mechanisms to suppress visibility during reclining actions are complex and costly, leading to slackness issues that affect appearance and functionality.
Innovation Solution
A vehicle seat design featuring a sheet-shaped screen member with a resilient member that extends from the seat back to the cushion, bracing slackness through a tilting action, and a cross-shaped intersection of resilient members to manage force components and prevent sagging, thereby improving appearance and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a cover mechanism with multiple components (fixed cover, movable cover, urging member) is used to suppress visibility during reclining, then visibility suppression is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent merges the fixed cover and movable cover into a single integrated cover structure that spans across the seat cushion. This unified cover eliminates the need for separate fixed and movable covers while maintaining the functionality of suppressing visibility of routing members during seat reclining operations.
Solution Approach 2:
The single cover structure serves multiple functions simultaneously: it acts as both a fixed cover and a movable cover, provides visibility suppression, and integrates with the seat cushion structure. This multi-functionality reduces the overall component count while achieving the same technical effect as the multi-component system.
2Ease of operation
If a cover mechanism with multiple components is used to track reclining action, then visibility suppression is improved, but the number of work operations and assembly complexity increase
Solution Approach 1:
The patent combines multiple cover components into a single integrated cover that can be installed as one unit. This reduces the number of assembly operations required while maintaining the ability to suppress visibility during reclining actions.
3Shape
If the screen member is made taut to improve appearance, then appearance is improved, but the structure becomes more complex requiring additional components
Solution Approach 1:
The patent employs a resilient member that provides dynamic tension to the screen member, allowing it to maintain a taut appearance during both upright and reclined positions. The resilient member automatically adjusts tension based on seat position, eliminating the need for complex mechanical tensioning systems while maintaining aesthetic appearance.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design effectively suppresses slackness and improves the appearance of the vehicle seat with a simpler structure, extending the lifespan of components and maintaining a clean interior view during reclining actions.
Implementation Method 1
a resilient member formed in an elongated shape, one end portion, in a length direction, of the resilient member being attached to the projecting portion at a side thereof at which the main body portion is disposed, another end portion, in the length direction, of the resilient member being attached to the seat cushion frame, and the resilient member being extensible in accordance with a tilting action of the seat back
Data Source
AI summary
A vehicle seat includes: a seat cushion frame; a seat back frame; a routing member extending from a rear face side of a seat back to a lower side of a seat cushion; a screen member provided extending from the rear face side of the seat back to the lower side of the seat cushion. The screen member includes: a main body portion disposed at a lower side of a rear face of the seat back, and a projecting portion projecting from the main body portion and disposed at the lower side of the seat cushion; and a resilient member, one end, in a length direction, of the resilient member being attached to the projecting portion, at which the main body portion is disposed, another end of the resilient member being attached to the seat cushion frame, and the resilient member being extensible in accordance with a tilting action of the seat back.