Self-locking tie cord with planar nodule lock

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Solution Overview

Problem

Existing ties and tie cords designed for human use are often elaborate, labor-intensive, uncomfortable, or intimidating, lacking versatility and ease of use for pleasurable detainment.

Innovation Solution

Self-locking tie cords and systems featuring a linear series of nodules connected by a stem with a planar lock allowing passage in one direction and an unlocking mechanism, enabling quick and simple binding and release through a one-way valve or flexible tabs, with optional digital or manual activation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional restraints (handcuffs, ropes, harnesses) are used for human detainment, then binding functionality is achieved, but device complexity, labor intensity, and discomfort increase

Engineering Contradiction:
Improveease of useVSAvoiddevice complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The tie cord is segmented into discrete nodules connected by a connective stem, allowing modular adjustment and simplified operation. Each nodule can be independently manipulated to tighten or loosen the binding, eliminating the need for complex knot-tying or adjustment mechanisms found in traditional restraints.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The planar lock with one-way valve mechanism enables self-locking functionality where the nodules automatically secure in place when pulled through, without requiring manual fastening or complex locking procedures. The system serves itself by converting the pulling motion into automatic securing.

Inventive Principle:
Principle #25Self-service

2Productivity

If traditional restraints are used, then binding capability is provided, but setup time and labor intensity increase

Engineering Contradiction:
Improvequick setupVSAvoidsetup time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The tie cord is pre-configured with the planar lock and one-way valve mechanism before use, so that during operation only a simple pulling motion is needed to activate the locking function. The complex locking mechanism is already in place and ready to engage, eliminating time-consuming knot-tying or assembly steps.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The traditional mechanical knot-tying system is replaced with a simpler pull-through mechanism combined with a one-way valve. Instead of requiring skilled knot manipulation, the system uses directional flow control to automatically secure the binding with a single pulling action.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Adaptability or versatility

If standard ropes or harnesses are used for detainment, then versatility is achieved, but labor intensity and complexity increase

Engineering Contradiction:
ImproveversatilityVSAvoidlabor intensity
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The tie cord with planar lock and one-way valve can be applied to various detainment scenarios (wrists, ankles, objects) using the same basic mechanism. The modular nodule design allows adjustment to different sizes and configurations, providing universal applicability without requiring different devices for different applications.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The connective stem provides flexibility and adaptability, allowing the rigid planar lock mechanism to accommodate various shapes and sizes of objects or body parts. The dynamic flexibility of the stem enables the same device to conform to different application scenarios while maintaining the simple pull-through operation.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS20250206508A1Self-locking tie cords and systems, and related methods of use
Publication Date: 2025.06.26 LAWRENCE JOHN PAUL
  • US20250206508A1 patent drawing
  • US20250206508A1 patent drawing
  • US20250206508A1 patent drawing

AI summary

One variation of a self-locking tie cord includes a) a linear series of a plurality of nodules coupled together by a connective stem; b) a lock, coupled to one end of the connective stem, including a planar opening and configured to allow a nodule from the series of nodules to pass through the planar opening in a first direction orthogonal to the planar opening or a second direction orthogonal to the planar opening and opposite to the first direction only when the nodule applies a sufficient force to the planar opening.