Vehicle Leg-Support System with Inter-Seat Extension Mechanism
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Solution Overview
Problem
Existing occupant support systems in vehicles lack the ability to dynamically reconfigure and provide adequate leg support, especially when seats are adjusted, leading to discomfort and reduced usability.
Innovation Solution
An occupant support system comprising a first and second vehicle seat that can change positions, coupled with a leg-support system that can transition between a stowed and in-use arrangement, utilizing a control unit and leg-support mechanism with an actuator and pivot unit to extend into the space between the seats for optimal lower body support, and incorporating massage units for enhanced comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the leg-support system is positioned outside the space between seats, then it is easier to access and operate, but it occupies more space and cannot provide support when seats are adjusted
Solution Approach 1:
The leg-support system is designed with movable components that allow it to transition between different positions. The base can move between being positioned outside the space between seats (for easy access) and extending into the space between seats (for support function), enabling the system to adapt dynamically to different operational requirements
Solution Approach 2:
The leg-support system is divided into separable components including a base and support elements that can be independently positioned and configured. This segmentation allows the base to remain accessible outside the inter-seat space while support elements can extend into the space when needed
2Adaptability or versatility
If the leg-support system extends into the space between seats, then it provides optimal lower body support, but it reduces available space and complicates the mechanism
Solution Approach 1:
The leg-support components are designed to nest within or alongside existing seat structures when not in use. The support elements can be stored in a compact configuration within the seat assembly, extending into the inter-seat space only when support is required, thereby minimizing space occupation and mechanical complexity
3Adaptability or versatility
If the leg-support base moves between retracted and extended positions, then it provides flexible support adjustment, but it requires additional actuators and control mechanisms
Solution Approach 1:
The leg-support base incorporates self-adjusting mechanisms that utilize forces generated during normal seat operation to automatically position itself. The base can utilize the movement and positioning of the seats themselves to trigger extension or retraction, eliminating the need for separate actuators and control systems while maintaining flexible position adjustment
Data Source
AI summary
An occupant support system includes a first vehicle seat and a second vehicle seat. The second vehicle seat is spaced apart from the first vehicle seat.