Seat Belt Guide Retaining Mechanism for Entry Convenience
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Solution Overview
Problem
Existing adjustable seat belt systems are inconvenient to operate due to the seat belt guide falling to a lower position when not in use, obstructing entry and requiring users to reach behind their back to fasten the belt, while maintaining self-adjusting properties for smaller passengers.
Innovation Solution
Incorporating retaining means such as cam, ridge, or magnetic connections between the seat back and seat belt guide to prevent the guide from sliding down below a predefined height, allowing easy access and operation while maintaining adjustability for various passenger sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the seat belt guide is allowed to slide freely to adjust position, then the system adapts to passengers of various sizes, but the guide falls to a lower position when not in use, obstructing entry and requiring users to reach behind their back to fasten the belt
Solution Approach 1:
The seat belt guide is designed with dynamic positioning capability, allowing it to slide vertically along the seat back to adapt to different passenger heights. The guide can move between a retracted position (above shoulder level) and an extended position (lower for small passengers), providing adaptability while maintaining ease of operation through controlled movement mechanisms
Solution Approach 2:
The seat belt guide is divided into separable components including the guide body, positioning elements, and connection mechanisms. This segmentation allows the guide to be adjusted to different positions and enables it to be removed or repositioned easily, resolving the contradiction between adaptability and operational convenience
2Ease of operation
If the seat belt guide is positioned higher for easy access, then entry is convenient and belt grasping is easy, but the system cannot accommodate smaller passengers who need the guide at a lower position
Solution Approach 1:
The guide implements dynamic height adjustment through sliding mechanisms, springs, or telescopic elements that allow the guide body to move vertically. This enables the guide to be positioned high for adult passengers (improving ease of operation) and lowered for children (improving adaptability), resolving the contradiction between these two requirements
Solution Approach 2:
The system changes the vertical position parameter of the seat belt guide based on passenger size. The guide can be adjusted to different heights along the seat back, with positioning markers or indicators showing the appropriate level for different passenger types, allowing optimization of both ease of operation and adaptability
3Ease of operation
If the seat belt guide is kept fixed at a high position, then operational convenience is maintained, but the self-adjusting property useful for small passengers is lost
Solution Approach 1:
The seat belt guide incorporates dynamic adjustment mechanisms such as sliding rails, telescopic elements, or spring-loaded positioning systems that enable the guide to move vertically. This dynamic capability maintains operational convenience at high positions while preserving the self-adjusting property for small passengers who need lower positioning
Solution Approach 2:
The guide includes self-adjusting features such as automatic positioning mechanisms, gravity-assisted sliding, or user-friendly adjustment controls that allow the system to adapt to different passenger sizes without complex intervention, maintaining both ease of operation and adaptability simultaneously
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enhances operational convenience by keeping the seat belt guide out of the way during entry and allowing easy grasping of the belt, while still accommodating smaller passengers by allowing the guide to slide down when needed.
Implementation Method 1
the retaining means comprises a releasable magnetic connection between the seat back and the seat belt guide
Data Source
Figure 1~2
Figure 3a~3b
Figure 4~5
AI summary
A vehicle has an adjustable seat belt system S for a vehicle seat comprising a seat base 1 and a seat back 2, the system comprising a first 3 and a second 4 lower anchor point located at either side of the seat base 1, a third anchor point 5 located vertically above the first anchor point 3, a seat belt webbing 6 extending from the first 3 to the second 4 anchor point and from the second 4 to the third 5 anchor point and releasable from the first and/or second anchor point, a seat belt guide 7 fastened to be movable between the first and third anchor points, with a guiding means that guides the seat belt webbing 6 that runs from the second to the third anchor point, wherein the vehicle is provided with retaining means engaging the seat belt guide, for preventing the latter from falling down below a predefined height, which height is higher than the first anchor point, and the retaining means allows such falling down when the seat belt guide is released from the retaining means.