Spool Winder With Pivot Arms And Slide Lock

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Solution Overview

Problem

Existing spool winders are inefficient for winding and unwinding spools of varying sizes, often resulting in uneven cord distribution and tangling, as they lack adjustable attachments for secure engagement with different spool sizes when used with a power drill.

Innovation Solution

A spool winder system with pivotally affixed arms and a slide lock mechanism that securely engages spools of various sizes, featuring adjustable notches and springs for enhanced grip, allowing for easy attachment to a power drill and facilitating both winding and unwinding processes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a fixed attachment is used for winding spools, then the device structure is simple, but it cannot accommodate spools of varying sizes

Engineering Contradiction:
Improveaccommodation of varying spool sizesVSAvoidattachment structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The attachment uses pivotally affixed arms that can rotate between open and closed positions, allowing dynamic adjustment to accommodate different spool sizes. The arms pivot about a rod secured in the power drill, enabling the attachment to adapt its configuration based on the spool being wound.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The attachment is divided into multiple separate arms rather than a single rigid structure. Each arm can be independently positioned and adjusted, allowing the system to accommodate various spool diameters by configuring the arms in different arrangements.

Inventive Principle:
Principle #1Segmentation

2Manufacturing precision

If hand winding is used, then no additional device is needed, but the cord distribution is uneven and tangling occurs

Engineering Contradiction:
Improvecord distribution uniformityVSAvoidwinding operation difficulty
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The manual winding operation is replaced by a power drill-driven rotational system. The power drill provides consistent rotational force to the arms, which in turn rotate the spool at a controlled rate, ensuring uniform cord distribution without the variability and effort of hand winding.

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

3Adaptability or versatility

If an adjustable attachment is added to accommodate various spool sizes, then versatility is improved, but the device complexity increases

Engineering Contradiction:
Improveadjustability for different spool sizesVSAvoidnumber of components
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The attachment is designed with universal applicability to handle multiple spool sizes through its adjustable arm mechanism. The same basic structure with pivotally affixed arms can accommodate various spool diameters by adjusting the arm positions, eliminating the need for multiple specialized attachments.

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

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The system provides a convenient and efficient method for winding and unwinding spools of different sizes by ensuring secure engagement and even cord distribution, reducing tangling and improving user experience.

Implementation Method 1

a plurality of springs, each having a first end and a second end, wherein the first end is affixed to the upper end and the second end is affixed to the slide lock. The plurality of springs are configured to bias the slide lock towards the upper ends of the plurality of arms.

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS10486934B2Spool winder
Publication Date: 2019.11.26 OEHRLEIN GORDON
  • US10486934B2 patent drawing
  • US10486934B2 patent drawing
  • US10486934B2 patent drawing

AI summary

A spool winder. The spool winder includes a plurality of arms, each having an upper end and a lower end. The plurality of arms are pivotally affixed at the lower end about a rod, wherein the rod can removably secure to a power drill. A notch is disposed on the upper end such that the notch faces the rod, wherein the notch can receive a rim of a spool therein. The spool winder further includes a slide lock having a plurality of apertures therein, wherein the plurality of apertures can receive the plurality of arms therethrough. The plurality of arms can move between a closed position and an open position as the slide lock is moved from the upper end towards the lower end. The distance between the upper end of each of the plurality of arms and the rod is greater when the arms are in the open position.