Safety Harness Attachment Element With Segmented Loops

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Solution Overview

Problem

Existing safety harnesses suffer from interference and wear issues due to the shared loop for the safety ring and chest strap attachment element, leading to incorrect positioning and potential damage, especially when used without the chest strap.

Innovation Solution

An attachment element with a distinct auxiliary loop for the safety ring and a main loop for the chest strap attachment, ensuring the safety ring remains correctly positioned and isolated from other attachment elements, regardless of the presence of the chest strap.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single loop is used for both safety ring and chest strap attachment element, then the device complexity is reduced, but the reliability deteriorates due to interference and wear between elements

Engineering Contradiction:

Improvestructure complexityVSAvoidsafety function

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The patent divides the single loop into two distinct loops: a main loop for the chest strap attachment element and an auxiliary loop for the safety ring. This segmentation eliminates interference between the two elements while maintaining a relatively simple overall structure, thus resolving the contradiction between device complexity and reliability.

Inventive Principle:

Principle #1Segmentation

2Ease of operation

If the safety ring moves freely inside the loop, then the ease of operation is improved, but the stability of positioning deteriorates leading to incorrect positions

Engineering Contradiction:

Improveattachment easeVSAvoidpositioning stability

Core Design Contradiction:

Ease of operationVSStability of the object's composition

Solution Approach 1:

The patent introduces an intermediary element (the attachment element with distinct loops) that mediates between the safety ring and the chest strap. The auxiliary loop provides a controlled environment for the safety ring, allowing it to be attached easily while maintaining stable, correct positioning through the loop's structural constraints.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Adaptability or versatility

If the loop receives the safety ring alone without chest strap, then the adaptability is improved, but the reliability deteriorates due to concentrated loads and erroneous positioning

Engineering Contradiction:

Improveusage flexibilityVSAvoidsafety function

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

By segmenting the loop system into a main loop and an auxiliary loop, the patent ensures that the safety ring always has a dedicated, properly positioned attachment point regardless of whether the chest strap is present. This segmentation maintains reliability across different usage scenarios while preserving adaptability.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentEP2401038B1Element for the attachment of parts of a safety harness

Publication Date: 2012.12.05 CAMP SPA

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AI summary

An element (6) for the attachment of parts of a safety harness (1), in particular thigh straps (3) and a belt (2), comprises a main loop (13) suitable for removable attachment to a chest strap (4) of the harness (1) and a safety ring (16) for attachment to one or more safety elements. The attachment element (6) comprises an auxiliary loop (15) distinct from the main loop (13) and arranged inside the latter. The safety ring (16) has a ring attachment portion (17) irreversibly inserted into the auxiliary loop (15).