Motorized Handheld Weaving Tool Needle Dynamics

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Solution Overview

Problem

Existing hair weaving tools are difficult to use for self-application due to the challenge of simultaneously holding the hair extension and needle, requiring professional assistance which is costly and time-consuming.

Innovation Solution

A handheld weaving tool with a motorized needle that moves between extended and retracted positions, actuated by a control, allowing for easy sewing of hair weaves with ergonomic design and adjustable features for comfort and precision.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a manual needle and thread method is used for attaching hair extensions, then the device complexity is low, but the ease of operation deteriorates due to the difficulty of simultaneously holding the extension and needle

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

Solution Approach 1:

The patent combines the needle, thread, and hair extension attachment function into a single integrated handheld device. The needle is housed within a protective casing that also holds the thread spool, eliminating the need to separately hold multiple components and significantly improving ease of operation.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent replaces the manual mechanical action of hand-sewing with an automated motor-driven needle mechanism. The motor reciprocates the needle automatically, substituting complex manual dexterity requirements with a simple trigger-activated automated system.

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

2Ease of operation

If professional assistance is sought for attaching hair extensions, then the ease of operation improves, but the loss of time and cost increase

Engineering Contradiction:
Improveease of operationVSAvoidloss of time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The patent enables self-service by providing a handheld device that can be easily operated by the user themselves. The ergonomic design and simple trigger activation allow users to attach their own hair extensions without requiring professional assistance, thereby eliminating time loss and additional costs.

Inventive Principle:
Principle #25Self-service

3Productivity

If the needle extends through the housing for sewing, then the productivity improves, but the object-affected harmful factors increase due to potential scalp contact

Engineering Contradiction:
ImproveproductivityVSAvoidscalp contact risk
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent implements a dynamic needle system that can extend and retract within the housing. The needle extends through an aperture only when needed for sewing and retracts when not in use, allowing productivity to be maintained while minimizing the harmful factor of potential scalp contact through controlled exposure.

Inventive Principle:
Principle #15Dynamics

4Productivity

If a handheld motorized device is used, then the productivity improves, but the weight of the moving object increases

Engineering Contradiction:
ImproveproductivityVSAvoidweight of device
Core Design Contradiction:
ProductivityVSWeight of moving object

Solution Approach 1:

The patent employs a lightweight miniaturized motor and optimized component dimensions to reduce the overall weight of the handheld device. By changing the parameters of the motor size, power consumption, and structural materials, the device achieves improved productivity while minimizing weight increase to maintain portability and user comfort.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS11571034B2Handheld weaving tool
Publication Date: 2023.02.07 STUART RICHARDS SHERMAINE
  • US11571034B2 patent drawing
  • US11571034B2 patent drawing
  • US11571034B2 patent drawing

AI summary

A handheld weaving tool is provided, the tool including a housing having a first end opposite a second end and a sidewall extending therebetween defining an interior volume. The second end comprises at least one aperture therethrough. A needle is disposed within the housing and can selectively move between an extended position and a retracted position, wherein an extended position, the needle extends through the aperture, and wherein a retracted position, the needle is disposed entirely within the housing. An opening is disposed in the first end, wherein the opening is dimensioned to receive a thread therethrough, such that the thread is operably connected to the needle. A motor is disposed within the housing and can reciprocally move the needle between the extended position and the retracted position. A control is disposed on the housing and activates the motor when actuated.