Harness Riser Webbing Modular Attachment for Wear Replacement

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Solution Overview

Problem

Existing harnesses face challenges in maintaining safety and integrity due to uneven wear of fabric components, particularly riser webbings, which wear faster than other parts, necessitating replacement to extend the harness's useful life without requiring on-site cutting or special tools.

Innovation Solution

The harness design incorporates a side attachment arrangement with a securing component and a lying ring assembly, where the retention component is removable, allowing for easy replacement of riser webbings under controlled conditions without cutting, using a securing component such as a ring or disc with attachment formations and secondary retention means to secure the lying ring assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of repair

If the harness uses traditional fixed attachment arrangements with sewn loops, then the structure is simple and robust, but replacement of worn riser webbings requires cutting and on-site modification which is complex and time-consuming

Engineering Contradiction:

Improvereplacement of riser webbingsVSAvoidattachment arrangement structure

Core Design Contradiction:

Ease of repairVSDevice complexity

Solution Approach 1:

The attachment arrangement is divided into separate modular components: a retaining component (ring or disc), a retention component (bolt, screw, or clip), and the riser webbing with loop. This segmentation allows individual components to be replaced independently, enabling easy replacement of worn riser webbings without affecting other parts of the harness.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The retention component is designed to be removable and reconfigurable, transforming the static fixed attachment into a dynamic system. The retention component can be detached and reattached to different riser webbings, allowing flexible maintenance and replacement operations without permanent modifications to the harness structure.

Inventive Principle:

Principle #15Dynamics

2Ease of operation

If the harness allows easy replacement of components, then maintenance is simplified, but the structural integrity and security of connections may be compromised

Engineering Contradiction:

Improvecomponent replacementVSAvoidconnection security

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The design incorporates redundant retention mechanisms where the retention component works together with the retaining component to create multiple points of security. The loop on the riser webbing provides a pre-formed attachment point that compensates for the removable nature of the retention component, ensuring that connection security is maintained even though the system is designed for easy replacement.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The retaining component (ring or disc) acts as an intermediary element between the harness body and the riser webbing. This intermediary provides a stable, permanent attachment point on the harness side while allowing the retention component to be easily removed and reattached on the riser side, thus maintaining connection security while enabling easy replacement.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Ease of manufacture

If on-site cutting and modification is required for replacement, then custom fitting is achieved, but special tools and skills are needed which increases complexity

Engineering Contradiction:

Improveon-site customizationVSAvoidfield replacement

Core Design Contradiction:

Ease of manufactureVSEase of repair

Solution Approach 1:

The loop is pre-formed on the riser webbing during manufacturing under controlled factory conditions rather than requiring on-site creation. This preliminary action eliminates the need for cutting, sewing, or other modification operations in the field, allowing simple mechanical attachment and detachment of retention components without special tools or skills.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The traditional mechanical system of cutting, sewing, and permanent attachment is replaced with a simple mechanical fastening system using retention components such as bolts, screws, or clips. This substitution eliminates the need for cutting tools, sewing equipment, and specialized skills, replacing them with simple tool-free or tool-minimal attachment operations.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentEP3999191B1harnesses

Publication Date: 2025.01.15 TREEMAGINEERS

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AI summary

A harness comprising a waist belt to which two side attachment arrangements are connected; two forward attachment arrangements. A respective riser (12) extends between each forward attachment arrangement and one corresponding side attachment arrangement. Each side attachment arrangement includes a securing component (24), typically in the form of a standing ring and a lying ring assembly (126) The securing component (24) is connected to the waist belt, and the lying ring assembly (126) is held by the securing component (24) against the waist belt. The lying ring assembly includes (126) a retention component that, in use, passes through a loop or an eye (148) in the riser (12) to connect the riser to the lying ring assembly (126). The retention component is removable from the lying ring assembly (126) to release the connection between the riser (12) and the lying ring assembly (126).