Vehicle Seat Belt Retractor Integration for Compact Structural Assembly
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Solution Overview
Problem
Existing vehicle seat structures with automatic belt mechanisms face challenges in optimizing installation space and force flow, while also requiring cost-effective assembly methods.
Innovation Solution
A vehicle seat structure with a structural component having a cavity for the automatic belt, which is positively or cohesively connected to side rails, allowing for efficient integration and assembly, including the use of screws, rivets, or welding, and enabling the integration of both shoulder and lap belts as part of a 3-point belt system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the belt mechanism is arranged in a cavity of the structural component, then the installation space is optimized and force flow is improved, but the manufacturing complexity increases
Solution Approach 1:
The belt mechanism is nested within a cavity of the structural component, with the retractor housing integrated into the side rail structure. This nesting arrangement optimizes installation space by utilizing the existing structural volume rather than adding external components, while the cavity is designed during manufacturing to accommodate the belt mechanism components.
Solution Approach 2:
The patent combines multiple functions into integrated components: the side rail structure serves both as a structural support element and as a housing for the belt mechanism. The retractor housing is merged with the side rail, eliminating the need for separate mounting structures and reducing overall manufacturing complexity despite the integrated cavity design.
2Strength
If the structural component is positively and materially connected to side rails, then the force flow and structural strength are improved, but the assembly complexity increases
Solution Approach 1:
The structural component is designed with pre-formed connection elements and cavities during the manufacturing process. The cavity structure and connection interfaces are created as integral parts of the structural component, allowing for straightforward assembly through direct positioning and connection without requiring complex pre-preparation or multiple assembly steps.
Solution Approach 2:
The structural component serves multiple functions simultaneously: it provides structural support, houses the belt mechanism, and incorporates connection interfaces for attaching to side rails. This multi-functionality is achieved through a single integrated component design that reduces the number of separate parts and simplifies the overall assembly process while maintaining high structural strength through positive and material connections.
Data Source
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AI summary
The invention relates to a vehicle seat structure (100) for a vehicle seat, comprising a structural component (112) having a belt retractor (108), wherein the belt retractor (108) is arranged in a hollow space (114) of the structural component (112), and the structural component (112) is connected interlockingly and/or integrally and/or force-lockingly with at least one further component of the vehicle seat structure (100). The invention also relates to a method for assembling a vehicle seat structure (100) of this type, wherein, in one method step, a structural component (112) having an belt retractor (108) and at least one further component of the vehicle seat structure (100) are shifted and/or rotated relative to one another, such that the structural component (112) and the at least one further component of the vehicle seat structure (100) adopt an end position relative to one another, and in a further method step, they are interlockingly and/or integrally and/or force-lockingly connected to one another.