Buckle Assembly Alignment Guide Bars

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Solution Overview

Problem

Existing two-part buckles often face alignment issues during assembly, leading to improper mating of the male and female components.

Innovation Solution

The buckle design incorporates improved alignment features, including a female buckle component with a housing featuring a central rib and alignment edges, and a male buckle component with guide bars and guide fins that progressively align with the female component during assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If traditional two-part buckle design is used, then the buckle structure is simple, but the alignment between male and female components is improper

Engineering Contradiction:
Improvealignment precisionVSAvoidbuckle structure complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by incorporating alignment edges and guide bars that pre-establish the correct spatial relationship between male and female buckle components before the final snapping operation. The alignment edges on the housing and corresponding guide bars on the male component create a preliminary alignment path that guides the components into proper position during insertion, ensuring accurate alignment before the latching mechanism engages.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent uses alignment edges and guide bars as intermediary elements that mediate between the male and female buckle components. These intermediary features facilitate the alignment process by providing physical guides that the components must follow during assembly, acting as mediators that translate the insertion motion into proper alignment without requiring complex adjustment mechanisms.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Manufacturing precision

If alignment features are added to improve alignment, then the alignment precision improves, but the device complexity increases

Engineering Contradiction:
Improvealignment precisionVSAvoidnumber of alignment features
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent applies local quality by adding alignment features only at specific critical locations where they are most needed - the alignment edges are positioned on the housing at the insertion interface, and corresponding guide bars are placed on the male component at the matching interface. This localized approach provides alignment precision exactly where required without unnecessarily complicating the entire buckle structure.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent segments the alignment function into distinct components: alignment edges on the female housing and guide bars on the male component. This segmentation allows each feature to be optimized independently and simplifies manufacturing, as the alignment function is divided into manageable parts that can be produced separately and then assembled.

Inventive Principle:
Principle #1Segmentation

3Ease of operation

If progressive alignment features are implemented, then the ease of operation improves, but the manufacturing complexity increases

Engineering Contradiction:
Improveease of assemblyVSAvoidmanufacturing complexity
Core Design Contradiction:
Ease of operationVSEase of manufacture

Solution Approach 1:

The patent merges the alignment function with the existing buckle structure by integrating alignment edges into the housing and guide bars into the male component. Rather than adding separate, standalone alignment devices, the alignment features are combined with the structural elements of the buckle, allowing the same components to serve both structural and alignment purposes.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The alignment edges and guide bars serve multiple functions: they provide alignment guidance during assembly, structural support for the buckle components, and define the insertion path. This multi-functionality reduces the need for additional dedicated alignment components, simplifying both manufacturing and assembly operations.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS12220024B2Buckle
Publication Date: 2025.02.11 ILLINOIS TOOL WORKS INC
  • US12220024B2 patent drawing
  • US12220024B2 patent drawing
  • US12220024B2 patent drawing

AI summary

Disclosed is a buckle assembly having a female buckle component and a male buckle component. The female buckle component configured to mate with a male buckle component and including a housing, a button aperture, and a pocket. The pocket includes an alignment edge at an opening of the pocket. The male buckle component includes a main body, guide bars, and lateral arms. Each lateral arm is coupled to the main body and configured to deflect about a pivot point. Each lateral arm includes a flexible lateral arm, a button, locking tips, and a guide fin.