Strap Extension Fastener for Stable Fit and Loose-End Securing

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Solution Overview

Problem

Existing sports equipment, such as rowing machines, often use adjustable straps that require frequent tightening due to a 'one size fits all' design, leading to instability and inconvenience, while loose ends of straps in items like rucksacks can cause hindrance and safety issues.

Innovation Solution

A device with an extension element and fasteners that secure loose ends of straps, providing controlled fit and tension, ensuring stability and convenience by bridging the ends and maintaining consistent tension.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If adjustable straps with a one size fits all design are used, then the device can accommodate different users, but the straps require frequent tightening and cause instability

Engineering Contradiction:

Improveaccommodation of different usersVSAvoidstability during use

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The extension element is divided into a first section and a second section, where the first section provides adjustable length for different users and the second section maintains consistent tension. This segmentation allows the strap system to adapt to different users while maintaining stability through the dedicated tensioning function of the second section.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The extension element acts as an intermediary component between the existing strap and the secured object. It bridges the gap by providing both length adjustment capability and consistent tension maintenance, resolving the contradiction between adaptability and reliability.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Device complexity

If loose ends of straps are left unsecured, then the device structure remains simple, but the loose ends can get stuck and hinder movement

Engineering Contradiction:

Improvestructure simplicityVSAvoidloose ends getting stuck

Core Design Contradiction:

Device complexityVSObject-affected harmful factors

Solution Approach 1:

The extension element extracts and secures the problematic loose ends of the strap by providing fasteners that attach to them. This removes the harmful effect of loose ends getting stuck while adding a manageable component to the system.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The extension element serves as an intermediary that captures and secures the loose ends through its fasteners, preventing them from getting stuck on external objects while maintaining a relatively simple overall structure.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Reliability

If personal foot straps are carried for each exercise session, then foot stability is improved, but the convenience of use decreases due to carrying and installation requirements

Engineering Contradiction:

Improvefoot stabilityVSAvoidconvenience of use

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The extension element with integrated fasteners provides a self-service solution by combining the functions of adjustment and securing in a single component that attaches directly to the existing strap system, eliminating the need for separate personal foot straps.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The extension element serves multiple functions: it provides length adjustment, maintains consistent tension, and secures the strap in position. This multi-functionality replaces the need for separate personal straps while maintaining foot stability.

Inventive Principle:

Principle #6Universality (Multi-functionality)

4Reliability

If the extension element maintains consistent tension, then the fit is controlled and stable, but the device complexity increases

Engineering Contradiction:

Improvecontrolled fitVSAvoiddevice structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

By segmenting the extension element into distinct functional sections (first section for adjustment, second section for tension), the patent achieves controlled fit through the second section while keeping each segment relatively simple in structure.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS20250268340A1Device for in-position securing of strap and its loose end

Publication Date: 2025.08.28 TROY INNOVATIONS

AI summary

Disclosed is a device (100, 400, 500, 600) for in-position securing at least one loose end (112A, 112B, 402A, 402B, 410A, 410B) of at least one strap (112, 402, 410). The device comprises an extension element (102, 210,502A, 502B, 502C, 502D, 602, 604) having at least one first end (102A, 210, 504A, 504B, 504C, 504D, 602A, 604A) and at least one second end (102B, 506A, 506B, 506C, 506D, 602B, 604B), the extension element comprises a first section (104, 510, 602C, 604C), having a length (L), extending between the at least one first end and the at least one second end, and a second section (106, 300, 512, 602D, 604D) arranged along the length of the first section such that ends (106A, 106B, 308, 310) of the second section are attached to the first section; and a fastener (108A, 108B, 200, 404A, 404B, 516A, 516B, 516C, 516D, 610A, 612A, 610B, 612B) arranged on at least one corresponding at least one first end or at least one second end of the extension element, the at least one fastener configured to receive the corresponding loose end of the at least one strap therethrough.