Tilting Buckle Loop-Strand Pivot Mechanism for Folded Seats
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Solution Overview
Problem
Existing seat belt buckle attachment systems, particularly in vehicles with tilting seats, face challenges in modularity and accessibility, as the loop strand often protrudes and becomes an obstacle when the seat is folded, and previous solutions like using a bungee cord are impractical and incompatible with certain seat types.
Innovation Solution
A loop-strand attachment device that couples drive means to the seat's axis, allowing the loop-strand to pivot with the backrest, utilizing a sleeve and washer mechanism with disengagement and return features to ensure smooth operation and compact storage, enabling easy installation on various seats.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the loop strand is fixed to the seat structure, then the buckle is easily accessible to the user, but the loop strand protrudes and forms an obstacle when the seat is folded
Solution Approach 1:
The loop strand is made dynamic by coupling it to the seat's tilting axis through the sleeve-washer mechanism. As the seat backrest tilts forward during folding, the loop strand automatically pivots and retracts underneath the seat. This dynamic adaptation allows the loop strand to maintain accessibility when the seat is in use while eliminating obstacles when folded, directly resolving the contradiction between ease of operation and harmful protrusion.
2Ease of operation
If a bungee cord is used to retract the loop strand, then the loop strand can be erased under its own weight, but the solution is unsustainable and impractical for assembly and incompatible with Parere seats
Solution Approach 1:
The invention merges the loop strand's retraction function with the seat's existing tilting mechanism. By coupling the drive means (sleeve and washer) to the seat's tilting axis, the loop strand's movement is synchronized with the natural folding motion of the seat. This eliminates the need for separate bungee cords or complex retraction mechanisms, making the system sustainable, easy to assemble, and compatible with Parere seats while maintaining automatic retraction functionality.
3Device complexity
If the loop strand is mounted on a fixed position, then the structure is simple, but the loop strand cannot adapt to seat tilting and folding movements
Solution Approach 1:
The mounting structure achieves universality by coupling the loop strand to the seat's tilting axis. The sleeve-washer mechanism serves multiple functions: it provides a simple mounting structure while simultaneously enabling the loop strand to adapt to seat tilting and folding movements. This multi-functional design maintains structural simplicity while achieving adaptability, resolving the contradiction between device complexity and adaptability.
Data Source
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AI summary
The invention relates to a seat belt buckle attachment device, comprising: - a portion for securing said buckle, - means (20) for mounting the portion for securing the buckle onto a mounting axis (150) of a seat, said seat comprising a support, a seat cushion, and a backrest adapted to tilt relative to said support, and - a drive means adapted to pivot the portion for securing the buckle relative to said support when the backrest tilts. According to the invention, said axis is adapted to pivot when the backrest tilts, and the drive means is adapted to be coupled to said axis so as to pivot the portion for securing the buckle when said axis pivots.