Vehicle Belt Assembly With Loop-Free Ends for Precise Mounting

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Solution Overview

Problem

Existing belt assemblies for vehicles have issues with accuracy, space requirements, and appearance due to the need for sewing threads, which can negatively impact the pattern and aesthetics, especially when the belt body has a design.

Innovation Solution

A belt assembly design where the belt body ends are loop-free, with attachments forming steps on the sides, allowing for precise connection without sewing, using overmolded parts or fasteners for secure attachment, and incorporating a sandwich structure for enhanced stability and aesthetics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the belt body is folded back and sewn by sewing thread to form a loop, then the belt assembly can be assembled, but the appearance is degraded and accuracy is reduced

Engineering Contradiction:
Improveassembly feasibilityVSAvoidlength control accuracy
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The patent removes the sewing thread from the belt assembly structure entirely. Instead of forming a loop by folding and sewing the belt body, the invention uses a separate attachment component that connects to the belt body end, eliminating the harmful sewing thread while maintaining assembly functionality.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces an attachment component as an intermediary element between the belt body and the loop structure. This attachment serves as a mediator that connects the belt body to the loop without requiring sewing threads, thereby improving both appearance and length control accuracy while maintaining assembly feasibility.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If the belt body is folded back and sewn by sewing thread to form a loop, then the belt assembly can be assembled, but the appearance is degraded

Engineering Contradiction:
Improveassembly feasibilityVSAvoidappearance quality
Core Design Contradiction:
ReliabilityVSShape

Solution Approach 1:

The patent removes the sewing thread from the belt assembly structure entirely. Instead of forming a loop by folding and sewing the belt body, the invention uses a separate attachment component that connects to the belt body end, eliminating the harmful sewing thread while maintaining assembly functionality.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent applies different structural solutions to different parts of the belt assembly. The belt body maintains its original quality without sewing threads, while the attachment component provides the necessary connection function with improved appearance quality at the critical mounting end.

Inventive Principle:
Principle #3Local quality

3Reliability

If the belt body is folded back and sewn by sewing thread to form a loop, then the belt assembly can be assembled, but the space requirement increases

Engineering Contradiction:
Improveassembly feasibilityVSAvoidspace requirement
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

The patent removes the sewing thread from the belt assembly structure entirely. Instead of forming a loop by folding and sewing the belt body, the invention uses a separate attachment component that connects to the belt body end, eliminating the harmful sewing thread while maintaining assembly functionality.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces the mechanical sewing thread system with a snap-fit attachment system. This substitution eliminates the need for threading through the belt body and forming loops with threads, thereby reducing the space required for the assembly while maintaining connection reliability.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

4Reliability

If the belt body is folded back and sewn by sewing thread to form a loop, then the belt assembly can be assembled, but the pattern on the belt body is negatively affected

Engineering Contradiction:
Improveassembly feasibilityVSAvoidpattern appearance
Core Design Contradiction:
ReliabilityVSShape

Solution Approach 1:

The patent removes the sewing thread from the belt assembly structure entirely. Instead of forming a loop by folding and sewing the belt body, the invention uses a separate attachment component that connects to the belt body end, eliminating the harmful sewing thread while maintaining assembly functionality.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent applies different structural solutions to different parts of the belt assembly. The belt body maintains its original quality without sewing threads, while the attachment component provides the necessary connection function with improved appearance quality at the critical mounting end.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS12258063B2Belt assembly and arrangement for vehicle
Publication Date: 2025.03.25 YANFENG INTERNATIONAL AUTOMOTIVE TECHNOLOGY CO LTD
  • US12258063B2 patent drawing
  • US12258063B2 patent drawing
  • US12258063B2 patent drawing

AI summary

A belt assembly for a vehicle and an arrangement for a vehicle including the belt assembly are disclosed. The belt assembly comprises a belt body having at least two ends, at least one of which is loop-free, wherein the belt body is fixedly provided with a first attachment at the at least one end, wherein the first attachment forms a step with respect to at least one side surface of the belt body at the respective end of the belt body, wherein the first attachment, together with the belt body, form a first mounting end of the belt assembly. The belt assembly may have improved appearance and improved accuracy.