Linkage-Adjusted Seat Belt Socket for Zero-Gravity Seat Restraint
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Solution Overview
Problem
Existing zero-gravity automotive seats suffer from reduced passenger comfort and safety due to the fixed seat belt socket, which compresses the abdomen during transition to zero-gravity mode and fails to provide adequate restraint during collisions.
Innovation Solution
A zero-gravity automotive seat with a linkage-adjusted seat belt that automatically adjusts the seat belt socket position as the seat frame rotates, ensuring optimal belt positioning to reduce abdominal compression and enhance safety during collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the seat belt socket is fixed to the side part of the seat, then the structure is simple, but the belt part compresses the passenger's abdomen when the front end of the seat frame is raised, reducing comfort
Solution Approach 1:
The patent applies the dynamics principle by transforming the fixed seat belt socket into a movable one that is dynamically linked to the drive assembly. The socket component moves synchronously with the frame's front end through the linkage assembly, adapting its position to the seat's configuration changes. This dynamic adjustment eliminates abdominal compression while maintaining structural simplicity.
2Device complexity
If the seat belt socket is fixed to the side part of the seat, then the structure is simple, but the seat belt cannot guarantee passenger safety during collision in zero-gravity state
Solution Approach 1:
The dynamics principle resolves this contradiction by making the seat belt socket movable through the linkage assembly. In collision scenarios during zero-gravity state, the socket's dynamic positioning capability ensures optimal restraint geometry, preventing passenger dive-down and maintaining safety without requiring complex additional structures.
3Ease of operation
If the front end of the seat frame is raised to achieve zero-gravity mode, then passenger comfort is improved, but the belt part of the seat belt compresses the passenger's abdomen
Solution Approach 1:
The patent applies preliminary action by moving the seat belt socket forward in advance through the linkage assembly as the frame begins to raise. This preemptive adjustment positions the belt to clear the passenger's abdomen before compression can occur, allowing the frame to be raised for zero-gravity comfort without causing harmful compression.
4Ease of operation
If the seat is in zero-gravity state, then passenger comfort is improved, but the seat belt's restraining action is reduced and passenger tends to dive down during collision
Solution Approach 1:
The dynamics principle resolves this contradiction by enabling the seat belt socket to move dynamically during collisions in zero-gravity state. When collision occurs, the linkage assembly drives the socket forward to maintain optimal belt geometry and restraining action, preventing passenger dive-down while preserving the comfort benefits of zero-gravity positioning during normal operation.
Data Source
AI summary
A zero-gravity automotive seat with linkage-adjusted seat belt, may have a base, a frame, and a drive assembly for driving a front end of the frame to move up and down in a lifting fashion and a linkage assembly. A socket component for fixing the seat belt is mounted and carried on the linkage assembly. The linkage assembly is dynamically linked to the drive assembly. When the drive assembly drives the front end of the frame to move up and down in a lifting fashion, the socket component can move forwards and rearwards synchronously with the linkage assembly. The position of the seat belt socket can be adjusted automatically as the frame of the zero-gravity seat rotates, reducing the feeling of oppression which the belt part of the seat belt engenders in the passenger's abdomen, and increasing the comfort and safety of the seat.