Kinetic Seat Cushion Assembly for Synchronized Turning Support
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Solution Overview
Problem
Current vehicle seat assemblies cause driver discomfort and fatigue during turns due to the rotation of the torso, pelvis, knees, and head, leading to aches and reduced driving time, as they rotate in opposite directions, necessitating a solution for synchronized torso and pelvic rotation to maintain a centered position.
Innovation Solution
A kinetic seat cushion assembly with a primary and secondary frame, coupled by a tilt mechanism and front pivot mechanism, allowing the secondary frame to move in phase with the primary frame, ensuring synchronized rotation of the seat cushion and back frame with the occupant, reducing strain on joints during turns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the driver compensates for rotation during turning, then the driver maintains control, but repeated rotation of torso, pelvis, knees, and head causes fatigue and aches
Solution Approach 1:
The kinetic seat assembly provides self-service by automatically detecting and responding to vehicle turns through its pivot mechanisms. The seat cushion and seat back autonomously rotate in the same direction as the driver's body, eliminating the need for the driver to manually compensate for rotational forces, thereby reducing fatigue and extending comfortable driving time.
2Device complexity
If the seat assembly is fixed without pivoting capability, then the structure is simple, but the driver experiences continuous rotation strain during turns
Solution Approach 1:
The patent introduces dynamic pivoting capabilities to the seat assembly while maintaining structural simplicity. The seat cushion pivots about a cushion pivot axis and the seat back pivots about a seat back pivot axis, both allowing forward rotation to synchronize with driver movement during turns, thereby improving comfort without excessive structural complexity.
Data Source
AI summary
A kinetic seat cushion assembly that rotates based on a force applied on an occupant seated therein is provided. The kinetic seat cushion assembly includes a primary seat cushion frame, a secondary seat cushion frame, a seat cushion tilt mechanism coupling the secondary seat cushion frame to the primary seat cushion frame such that the secondary seat cushion frame is movable with respect to the primary seat cushion frame, and a front pivot mechanism that pivotally couples a front portion of the primary seat cushion frame to a front portion of the secondary seat cushion frame.