Safety Belt Strap Cavity for Electronic Integration
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Solution Overview
Problem
Existing safety belt devices for motor vehicles lack a practical and cost-effective method to integrate electronic components and electrical lines without compromising their functionality or increasing the risk of injury to occupants during accidents.
Innovation Solution
A belt strap with a cavity formed by two fabric layers connected at the edges with weave threads, allowing for the integration of electronic components and lines while maintaining the strap's tensile strength and planar formation, which is achieved during the weaving process using a specific weave pattern.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If electronic components and lines are integrated into the safety belt device, then the functionality and safety of the system are enhanced, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent integrates electronic components and electrical lines directly into the cavity formed between the two fabric layers of the belt strap. The electronic components are positioned within the cavity space, with electrical lines running through the fabric layers, effectively nesting the electronic subsystem within the structural framework of the safety belt itself.
Solution Approach 2:
The belt strap serves multiple functions: it provides the primary safety restraint function while simultaneously housing electronic components and conducting electrical lines. The fabric layers and cavity structure are designed to fulfill both mechanical restraint purposes and electronic integration purposes, making the safety belt a multi-functional device.
2Adaptability or versatility
If a cavity is created in the belt strap for electronic components, then adaptability is improved, but the manufacturing precision and structural integrity may be compromised
Solution Approach 1:
The cavity is pre-formed during the weaving process of the fabric layers, before the electronic components are installed. The two fabric layers are woven with a specific pattern that creates the cavity space and defines the path for electrical lines in advance, allowing electronic components to be simply placed into the pre-prepared cavity without requiring complex post-manufacturing operations.
Solution Approach 2:
The patent uses composite fabric layer construction with specific weaving patterns to create both the structural body and the cavity simultaneously. The fabric layers are designed with alternating dense and loose weaving sections, where the loose sections form the cavity while the dense sections provide structural strength, creating a composite structure that fulfills both requirements.
3Adaptability or versatility
If the belt strap is woven in two separate fabric layers, then adaptability for electronic integration is improved, but the tensile strength and structural stability may be reduced
Solution Approach 1:
The two separate fabric layers are merged together at the edge sections through a weaving connection, where the layers are interlaced to form a unified structure. This merging at the edges provides structural stability and tensile strength while maintaining the separation and cavity formation in the central sections of the belt strap.
Solution Approach 2:
The fabric layers have different local qualities: the edge sections feature dense weaving and connection for structural strength and stability, while the central sections have a looser weaving pattern that creates the cavity for electronic components. This local differentiation allows the belt to simultaneously achieve both strength and adaptability.
Data Source
AI summary
The present invention relates to a belt strap for a safety belt device of a motor vehicle. The belt strap includes at least one cavity for receiving electronic components and/or lines. The cavity is formed by two fabric layers which are connected to one another in the outer edge sections by means of one or more weave thread/weave threads running parallel to the longitudinal direction of the belt strap.