Dynamic Weft Hair Extension Clips for Secure Angle Placement

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Solution Overview

Problem

Current weft hair extension clips fail to provide a secure hold, leading to slippage and misalignment, and limit placement options to a downward angle only.

Innovation Solution

A clip assembly with movable prongs and a frame that transitions between convex and concave configurations, allowing secure attachment and versatile placement angles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If current weft hair extension clips are used, then the weft hair can be attached, but the clip fails to provide a secure hold causing slippage and misalignment

Engineering Contradiction:
Improvesecure holdVSAvoidslippage and misalignment
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The clip assembly incorporates a movable frame that can transition between convex and concave configurations, allowing the prongs to dynamically adjust and intersect the frame plane during attachment. This dynamic mechanism enables the clip to securely grip the weft hair and natural hair, preventing slippage and misalignment while maintaining ease of operation.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If current weft hair extension clips are used, then the structure is simple, but the placement is limited to downward angle only

Engineering Contradiction:
Improveplacement anglesVSAvoidclip structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The movable frame design allows the clip assembly to adapt to various placement angles by transitioning between convex and concave configurations. This dynamic structure enables versatile placement options including top, side, and back of head positions, while the mechanism remains integrated within a relatively simple overall device architecture.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The frame's ability to transition between convex and concave configurations adds a dimensional aspect to the clip's functionality, enabling it to accommodate multiple placement angles and orientations beyond the traditional downward angle only, thereby increasing adaptability without proportionally increasing complexity.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Adaptability or versatility

If the frame is made movable between convex and concave configurations, then secure attachment at various angles is enabled, but the device complexity increases

Engineering Contradiction:
Improveplacement variationsVSAvoidmovable frame mechanism
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The movable frame mechanism is designed to transition between convex and concave configurations through a relatively simple mechanical action, enabling the clip to adapt to various placement angles. The dynamic design allows for versatile placement options while the mechanism itself remains integrated and manageable, balancing adaptability with controlled complexity.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS12458089B2Weft hair extension clips and assemblies thereof
Publication Date: 2025.11.04 HAIR ZONE
  • US12458089B2 patent drawing
  • US12458089B2 patent drawing
  • US12458089B2 patent drawing

AI summary

A weft hair extension clip assembly, system, and method of using the same is provided. Each weft hair extension clip assembly has a planar base, along a first surface thereof the artificial weft hair is attached. On the second, opposing surface of the planar base is a frame joined thereto by opposing end caps for each clip of the weft hair extension assembly. Each end cap supports prongs movable between an inactive mode and an active mode, relative to the frame, where in the active mode the prongs intersect the plane of the frame in such a way as to urged hair of the user between the prongs and frame for a secure hold. The frame may also move in concert with the prongs from a convex configuration to a concave configuration hugging the head of the user in the active mode.