Vehicle Seat Backrest Folding Mechanism for Console Position
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Solution Overview
Problem
Conventional vehicle seats lack flexibility in adjusting the backrest position, limiting user comfort and space utilization, as they often require multiple mechanisms and manual effort to fold or adjust the backrest effectively.
Innovation Solution
A reconfigurable vehicle seat design featuring a base, seating portion, and backrest support with a locking device and hinge mechanism, allowing the backrest to pivot and fold into different positions using a single actuation mechanism, and incorporating motorized adjustment and electric control for automated operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional vehicle seats use multiple mechanisms and manual effort to fold or adjust the backrest, then the backrest can be adjusted to different positions, but the operation becomes complex and difficult
Solution Approach 1:
The patent combines multiple adjustment functions (backrest folding, console position, retracted position) into a single integrated mechanism. The front connecting rod acts as a universal actuator that, when moved between raised and forward-folded positions, can achieve different backrest configurations depending on the state of the locking device and hinge mechanism, eliminating the need for separate mechanisms for each function.
Solution Approach 2:
The single actuating mechanism serves multiple functions: it can fold the backrest to a retracted position when the locking device is engaged, fold the backrest to a console position when the locking device is disengaged, and maintain the backrest in an upright position. This multi-functional design allows one mechanism to replace what would traditionally require multiple separate mechanisms.
2Adaptability or versatility
If conventional vehicle seats require multiple mechanisms for backrest adjustment, then various positions can be achieved, but the device complexity increases
Solution Approach 1:
The patent merges the functions of multiple adjustment mechanisms into a single integrated system. The front connecting rod, locking device, and hinge mechanism work together as one coordinated system, reducing the total number of independent mechanisms while maintaining the ability to achieve multiple backrest positions (upright, retracted, and console positions).
Solution Approach 2:
The single actuating mechanism is designed to perform multiple functions: maintaining upright position, folding to retracted position, and folding to console position. This universal mechanism eliminates the need for separate dedicated mechanisms for each function, thereby reducing overall device complexity.
3Ease of operation
If conventional vehicle seats use manual effort for backrest folding, then the structure can be simple, but user comfort and convenience decrease
Solution Approach 1:
The mechanism is designed to perform the adjustment work automatically through its mechanical configuration. When the front connecting rod is actuated, the coordinated action of the locking device and hinge mechanism enables the backrest to fold to the desired position without requiring the user to apply significant force or perform complex manual operations.
Data Source
AI summary
A vehicle seat comprising a base, a seating portion connected to the base by a front connecting rod, a backrest support lockable on the base, a backrest pivotally mounted on the backrest support by a hinge mechanism and connected to the seating portion by a pivot. The backrest support is connected to the base by two rear connecting rods configured so that the backrest is folded horizontally in a console position when the front connecting rod pivots forward after unlocking the backrest support while the hinge mechanism is not actuated.