Linkable Strap-Connecting Connectors With Self-Aligning Couplers

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Solution Overview

Problem

There is a need for a strap connector that can be quickly and easily coupled to another strap connector to couple different straps together, while allowing for adjustable strap lengths and secure retention.

Innovation Solution

A strap-retaining connector with a strap-retaining portion and a connector coupling portion, featuring complementary attachment couplers with locking protuberances, allowing for removable coupling and adjustable strap lengths, enabling multiple straps to be linked at a common location.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional clips are used to connect straps, then the connection is secure, but the coupling process is time-consuming and requires precise alignment

Engineering Contradiction:
Improveconnection securityVSAvoidcoupling time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent introduces a intermediary mechanism (the complementary coupler interface with guide features) that mediates between two straps during coupling. The guide features act as intermediaries that automatically align the couplers, eliminating the need for manual precise alignment while maintaining secure connection through the intermediary locking mechanism.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The coupler design incorporates self-aligning features where the coupling mechanism automatically orients and connects itself without external assistance. The complementary shapes and guide features enable the couplers to self-correct their alignment during the coupling process, making the operation quick and intuitive without requiring user skill or time.

Inventive Principle:
Principle #25Self-service

2Adaptability or versatility

If adjustable strap lengths are implemented, then versatility is improved, but device complexity increases

Engineering Contradiction:
Improvestrap length adjustmentVSAvoidconnector structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The strap system is segmented into modular components: adjustable strap sections with multiple engagement positions and connector portions with complementary couplers. This segmentation allows independent adjustment of strap length while maintaining a simple overall connector structure, as each segment can be adjusted without affecting the other segments or requiring complex mechanisms.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The connector incorporates dynamic elements that allow the strap-retaining portion to shift between multiple fixed positions along the strap. This dynamic capability enables adjustable length while the connector itself maintains a simple, static structure. The adjustability is achieved through the interaction of simple geometric features rather than complex mechanical mechanisms.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3449754B1Strap linking systems having linkable strap-retaining connectors
Publication Date: 2024.08.14 ILLINOIS TOOL WORKS INC
  • EP3449754B1 patent drawingFigure 1~2
  • EP3449754B1 patent drawingFigure 3~5
  • EP3449754B1 patent drawingFigure 6~7

AI summary

A strap-retaining system includes a first strap-retaining connector including a first strap-retaining portion that is configured to adjustably retain a first strap, and a first connector coupling portion. A second strap retaining connector includes a second strap-retaining portion that is configured to adjustably retain a second strap, and a second connector coupling portion that removably couples to the first connector coupling portion.