Seat Back Belt Bracket Layout for Stable Load Path in Rotating Seats
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Solution Overview
Problem
Existing seat frames struggle to effectively regulate the path of a seat belt, especially in rotatable seat frames, which compromises the stability of the load-bearing performance.
Innovation Solution
A seat back design featuring an upper frame, a first side frame, and a first belt bracket system, which includes a front bracket and a rear bracket, to guide and stabilize the seat belt path, ensuring secure load performance even in rotatable seat frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional three-point seat belt configuration is used with a rotatable seat frame, then all three points must be fixed to the seat frame, but the path regulation of the seat belt becomes ineffective and load performance becomes unstable
Solution Approach 1:
The belt bracket is divided into front and rear separate brackets that can be independently positioned and secured to the seat frame. This segmentation allows each bracket to independently regulate portions of the seat belt path, providing stable load performance even when the seat frame rotates, without requiring complex integration of all three anchor points into a single rigid structure.
2Adaptability or versatility
If the seat frame is made rotatable for autonomous vehicle applications, then adaptability is improved, but the stability of seat belt load performance deteriorates
Solution Approach 1:
The seat frame is designed to be rotatable to accommodate different seating positions and autonomous vehicle configurations. The dynamic rotation capability is complemented by the front and rear brackets that remain securely attached to the rotating frame, ensuring that seat belt load performance remains stable regardless of the seat's angular position.
3Ease of manufacture
If the front bracket and rear bracket are manufactured as separable components, then ease of manufacture and assembly is improved, but structural complexity increases
Solution Approach 1:
The belt bracket is manufactured as separable front and rear components that can be independently produced and then assembled. This segmentation simplifies manufacturing processes and allows for easier replacement or adjustment of individual brackets, while the overall structural complexity is managed through standardized connection mechanisms between the brackets and the seat frame.
Data Source
AI summary
The present invention provides a seat back comprising: an upper frame; a first side frame coupled to one side of the upper frame; and a first belt bracket which is coupled to a section at which the upper frame and the first side frame are connected, and which guides a seat belt. The first belt bracket comprises: a front bracket disposed in front of the section at which the upper frame and the first side frame are connected; and a rear bracket which is manufactured so as to be separable from the front bracket, is coupled to the front bracket, and is disposed behind the section at which the upper frame and the first side frame are connected.