Plastic Fastening Strap for Metal-Ring Mesh Protective Clothing

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Solution Overview

Problem

Existing fastening straps for metal-ring mesh protective clothing require additional complex and costly metal components, leading to hygiene issues and a risk of loss due to slippage.

Innovation Solution

A fastening strap with integral engagement elements and recesses made of plastic, configured to securely grip loops on the protective clothing, preventing slippage and allowing for easy replacement, while being lightweight and hygienic.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If metal components (snap fastener and snap fastener buckle) are used for fastening the strap, then the fastening strength is improved, but the device complexity and manufacturing cost increase

Engineering Contradiction:

Improvefastening strengthVSAvoidnumber of components

Core Design Contradiction:

StrengthVSDevice complexity

Solution Approach 1:

The patent combines the fastening strap and engagement element into a single integral component made of plastic. The engagement element is directly formed as part of the fastening strap through injection molding, eliminating the need for separate metal snap fasteners and buckles. This merging reduces the number of components while maintaining fastening functionality through the loop section that grips the protective clothing loop.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent changes the material parameter from metal to plastic for the fastening components. This material substitution allows for integral manufacturing through injection molding, reducing component complexity while achieving sufficient fastening strength through the geometric design of the loop section and engagement element.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If metal components are used for fastening, then the fastening security is improved, but the hygiene standards and ease of cleaning are worsened

Engineering Contradiction:

Improvefastening securityVSAvoidhygiene compliance

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent changes the material parameter from metal to plastic, which enables integral manufacturing without crevices or joints where dirt and bacteria can accumulate. The smooth, non-porous plastic surface meets hygienic standards for food processing environments while maintaining fastening security through the loop grip mechanism.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

By merging the fastening strap and engagement element into a single integral component, the patent eliminates joints, seams, and attachment points that would otherwise trap contaminants. This integral construction allows for complete cleaning and sanitization, meeting hygiene requirements in food processing industries.

Inventive Principle:

Principle #5Merging (Combining)

3Reliability

If additional metal components are used for fastening, then the fastening functionality is improved, but the weight of the protective clothing increases

Engineering Contradiction:

Improvefastening functionalityVSAvoidweight of fastening system

Core Design Contradiction:

ReliabilityVSWeight of moving object

Solution Approach 1:

The patent changes the material parameter from dense metal to lightweight plastic, significantly reducing the weight of the fastening system. The plastic material provides sufficient strength for the application while being substantially lighter, improving comfort for the wearer.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

By combining multiple metal components into a single plastic integral component, the patent reduces both the number of parts and the total weight. The engagement element and fastening strap become one piece, eliminating the weight of separate metal snap fasteners and buckles.

Inventive Principle:

Principle #5Merging (Combining)

4Strength

If complex metal fastening components are used, then the fastening strength is improved, but the ease of manufacture and production cost are worsened

Engineering Contradiction:

Improvefastening strengthVSAvoidmanufacturing simplicity

Core Design Contradiction:

StrengthVSEase of manufacture

Solution Approach 1:

The patent merges the fastening strap and engagement element into a single component that can be manufactured in one injection molding cycle. This eliminates the need for separate manufacturing processes, assembly steps, and quality control for multiple components, dramatically simplifying production.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

Changing from metal to plastic allows the use of injection molding, a high-volume, low-cost manufacturing process. This material and process change enables economical production of the integral fastening component while maintaining sufficient fastening strength through appropriate geometric design.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS10264836B2Fastening strap for fastening to a protective-clothing loop formed of a metal-ring mesh, as well as protective clothing

Publication Date: 2019.04.23 FRIEDRICH MUNCH GMBH & CO KG

AI summary

The present invention relates to a fastening strap 45; 180; 211; 250 for fastening to a loop 35, 40 of protective clothing 10, 50 formed of a metal-ring mesh 26 as well as to such protective clothing 10; 50, the fastening strap 45; 180; 211; 250 comprising at least one engagement element 70; 185 as well as a recess 90; 205 correspondently configured with regard to the engagement element 70; 185, the engagement element 70; 185 and the recess 90; 205 engaging with each other and forming a loop section 155 which is configured to grip the loop 35, 40 of the protective clothing 10; 50 and to fix the fastening strap 45; 180; 211; 250 to the loop 35, 40 of the protective clothing 10; 50.