Vehicle Seat Link Member Regulation for Load Control
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Solution Overview
Problem
Vehicle seat frames experience excessive load displacement, risking excessive load transfer to other mechanical members due to large loads acting on the link members, which can lead to mechanical conjunction issues.
Innovation Solution
A vehicle seat design featuring a fixed bracket with a regulation part that extends parallel to the link member's swinging axis, preventing the link member from swinging beyond a preset range by abutting with it, thereby controlling load distribution and preventing excessive load transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the link member is allowed to swing freely to accommodate seat frame displacement under large load, then the seat frame can maintain its mechanical conjunction, but excessive load is transferred to other members displaced in mechanical conjunction with the link member
Solution Approach 1:
The regulation part acts as an intermediary element between the link member and the connection part. It mediates the swinging motion by providing a regulated path that allows necessary displacement while preventing excessive movement that would transfer harmful loads to other members.
Solution Approach 2:
The regulation part changes the motion parameters of the link member by constraining its swinging range. Instead of allowing free swinging, it modifies the angular displacement parameter to remain within safe limits that prevent excessive load transfer to other mechanical members.
2Object-affected harmful factors
If the link member's swinging range is limited to prevent excessive load transfer, then other members are protected from excessive load, but the seat frame's ability to accommodate large load displacement is reduced
Solution Approach 1:
The regulation part provides dynamic constraint that adapts to the loading conditions. It allows the link member to swing within a controlled range that is sufficient for normal operation while preventing excessive displacement under large loads, thus maintaining both adaptability and load protection.
3Stability of the object's composition
If the link member swings freely in response to seat frame movement, then the mechanical conjunction is maintained, but the swinging range may exceed preset limits causing excessive load on other members
Solution Approach 1:
The regulation part serves as an intermediary that maintains the mechanical conjunction between the link member and the seat frame while mediating the force transmission. It ensures that the connection remains stable but the load is distributed within safe limits by preventing excessive swinging.
Data Source
AI summary
A vehicle seat includes: a seat frame that serves as at least a portion of a skeletal structure; a fixed bracket that is fixed on the indoor wall, the fixed bracket including a connection part having a connection surface that is substantially orthogonal to a seat width direction and extending in a substantially vertical direction; a link member in which one end is swingably connected with the connection part and the other end is connected with the seat frame, the link member being swingable in a direction substantially parallel with the seat width direction set as a swinging center axis; and a regulation part which extends from the connection part in a direction substantially parallel with the swinging center axis, the regulation part being configured to regulate, by abutting on the link member in the seat front-and-rear direction, that the link member swings beyond a preset swinging range.