Vehicle Seat Frame Structural Device with Multi-Diameter Spacer
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Solution Overview
Problem
Current seat frames in vehicles, particularly those with bench-type seats, face challenges in meeting shock criteria due to restrictive space constraints and increased costs when trying to secure seat belts, as they often require identical structural devices and limited anchoring options.
Innovation Solution
A structural device with a main flange, reinforcing flange, and a spacer with internal threads of different diameters allows for flexible anchoring of both anchoring parts and buckle strands, enabling secure placement at intermediate and end positions within the frame, thereby enhancing the frame's rigidity and allowing for identical structural devices to be used across the frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the same structural device is used for both anchoring parts and buckle strands, then device complexity is reduced and inventory management is simplified, but the space constraints and shock criteria compliance become more difficult to meet
Solution Approach 1:
The structural device is designed with a spacer that has two different internal threads of different diameters, allowing the same device to perform multiple functions: anchoring anchoring parts (via the first internal thread) and anchoring buckle strands (via the second internal thread). This multi-functionality resolves the contradiction by enabling a single standardized device to meet both shock criteria and space constraints without requiring multiple device variants.
Solution Approach 2:
The spacer incorporates locally differentiated features (two internal threads with different diameters at different locations) to accommodate different anchoring requirements. The first internal thread is designed for anchoring parts while the second internal thread is designed for buckle strands, allowing each location to have the appropriate anchoring capacity while using the same overall structural device.
2Reliability
If different structural devices are used for anchoring parts and buckle strands, then shock criteria can be met, but manufacturing costs increase and inventory management becomes more complex
Solution Approach 1:
By integrating two different internal threads into a single spacer, the invention creates a universal structural device that can be manufactured once and used for both anchoring parts and buckle strands. This eliminates the need to manufacture and manage multiple different device variants, thereby reducing manufacturing costs while maintaining shock criteria compliance.
Solution Approach 2:
The invention merges the functions of two previously separate structural devices (one for anchoring parts, one for buckle strands) into a single combined device. The spacer combines both internal threads in one component, which is then integrated with the main flange and reinforcing flange to create a unified structural device that replaces two separate devices.
3Adaptability or versatility
If the spacer has internal threads of different diameters, then flexible anchoring of both anchoring parts and buckle strands is enabled, but the spacer design becomes more complex
Solution Approach 1:
The spacer is designed as a universal component that incorporates two different internal threads, enabling it to accommodate both anchoring parts and buckle strands. While the internal thread design is differentiated, the overall spacer structure remains a single integrated component, balancing versatility with design simplicity.
Solution Approach 2:
The spacer applies local quality by having different internal thread characteristics at different locations (first internal thread for anchoring parts, second internal thread for buckle strands), while the rest of the spacer structure remains uniform. This allows the spacer to be adaptable to different anchoring requirements without requiring a completely different design for each application.
Data Source
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AI summary
A structural device (11) is part of a bench seat frame (2) and comprises: - a main flange (7) having a lower part (12) with a first hole (10), - a reinforcing flange (8) with a second hole (11) and attached to this lower part (12), and - a spacer (9) having a first end (13) passing through the first hole (10) and having a first internal thread, having a first diameter and suitable for cooperating with a threaded rod of a first screw (16) adapted for anchoring an anchor piece (6) of a safety belt, and a second end (14) having a second internal thread, having a second diameter greater than the first diameter and suitable for cooperating with a threaded rod of a second screw (17) adapted for anchoring at least one loop strand (51) of a safety belt.