Hex-Bit Spool Winder Adaptor for Manual and Power Retraction
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Solution Overview
Problem
Existing spooling devices for materials like string and wires are inefficient, often causing kinking and are slow due to manual winding methods, and existing solutions with slip sleeves do not allow for both manual and power retraction effectively.
Innovation Solution
A winder device with a spool, handle, torque transfer connection, and slip sleeve that allows for both manual and power retraction, featuring a torque transfer connection that integrates an internal hex bit receiver and ergonomic design for smooth rotation, along with hooks for secure storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual winding method is used, then device complexity is reduced, but productivity deteriorates (slow and time-consuming)
Solution Approach 1:
The device allows dynamic switching between manual winding mode (grasping the handle) and power-driven mode (attaching power tool to torque transfer connection), enabling the system to adapt its complexity level based on operational requirements while maintaining both simplicity and high productivity capabilities
Solution Approach 2:
The handle serves multiple functions: it can be grasped for manual winding operations, or it can have a power tool attached via the torque transfer connection for powered retraction, making the device versatile enough to handle both simple and complex operational scenarios
2Ease of operation
If hand-over-hand winding method is used, then ease of operation is maintained, but manufacturing precision deteriorates (causes kinking and twisting)
Solution Approach 1:
The torque transfer connection with hex bit receiver allows replacement of the manual hand-over-hand mechanical winding system with a power-driven rotational system, eliminating the twisting and kinking caused by manual manipulation while preserving ease of operation through simple power tool attachment
Solution Approach 2:
The torque transfer connection acts as an intermediary mechanism between the power tool and the spool, providing a controlled rotational interface that prevents the uncontrolled twisting and kinking associated with direct manual handling while maintaining operational simplicity
3Ease of operation
If slip sleeve covers entire handle, then ease of operation improves (smooth rotation), but adaptability deteriorates (cannot manually twist solid section)
Solution Approach 1:
The handle is segmented into two distinct zones: a portion covered by the slip sleeve for smooth powered rotation, and an exposed solid portion for manual gripping and twisting, allowing the device to perform both manual and powered operations effectively
Solution Approach 2:
The slip sleeve is applied locally to only a portion of the handle rather than covering the entire length, creating different surface characteristics in different regions - a smooth slipped region for powered operation and a solid grippable region for manual operation, each optimized for its specific function
4Productivity
If power retraction is implemented, then productivity improves (faster retraction), but device complexity increases (torque transfer connection components)
Solution Approach 1:
The torque transfer connection with hex bit receiver is designed to be universally compatible with standard power tools, allowing the device to achieve high productivity through power assistance while keeping the added complexity minimal through use of standardized interfaces
Solution Approach 2:
The complex mechanical retraction mechanisms found in traditional powered spooling devices are replaced with a simple torque transfer connection that directly interfaces with the power tool's drive mechanism, achieving power-driven retraction with minimal additional complexity
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
Enables efficient and ergonomic retraction of spoolable materials, reducing kinking and time consumption by allowing both manual and power-assisted winding, while maintaining stability and ease of use.
Implementation Method 1
frictional engagement between the spool and the shoulder of the handle for securing a disposable spool in position during operation, where the slip sleeve is configured to rotate around the handle
Data Source
AI summary
A hand powered or mechanical spooling device includes a spool, a torque transfer connection as an adaptor centered and torsionaly balanced on one end of the spool, a handle, a shoulder to keep string off the handle, and a slip sleeve. The handle, shoulder and spool can be formed as connected parts or as one unitary device. The slip sleeve can be secured in place so that it rotates around a portion of the handle up to and covering most of the shoulder. The torque transfer connection is integrated as either an internal hex bit receiver/adaptor, and/or external round or hexagonal bit.