Flat-Laying Wire Puller Structure for One-Handed Cord Retraction
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Solution Overview
Problem
Existing wire pullers require manual handling, are laborious to operate, and pose operational risks when used at high places due to the need for both hands, especially when pulling or retracting cords.
Innovation Solution
A wire puller design without a handle, featuring a take-up wheel with a convex frame, roller, fixing frame, and spring tube, allowing for flat placement on the ground, enabling single-handed operation and easy cord management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a handle is added to the wire puller to provide grip and control, then ease of operation is improved, but device complexity increases and the device cannot be placed flat on the ground
Solution Approach 1:
The invention extracts and removes the handle from the wire puller system, eliminating the need for a separate gripping component. The take-up wheel itself is designed with a hollow portion that can be directly held by the operator, integrating the gripping function into the wheel structure rather than requiring an additional handle component.
Solution Approach 2:
The invention merges the handle function with the take-up wheel structure. The hollow portion of the take-up wheel serves dual purposes: it acts as both the functional component for wire retraction and as the gripping interface for the operator's hand, combining what were previously separate elements into one integrated structure.
2Stability of the object's composition
If the metal bracket is made large and heavy to prevent falling when the wire puller is placed on the ground, then stability is improved, but ease of operation deteriorates as the device becomes hard to hold
Solution Approach 1:
The invention enables the wire puller to be self-stabilizing through its flat placement capability. The take-up wheel with its hollow portion and the fixing frame create a structure that can be placed flat on the ground without requiring a heavy metal bracket for stability. The design serves itself by using the operational structure to provide both stability and portability simultaneously.
3Reliability
If two hands are occupied for bearing the extra weight of the pull cord and rotating the take-up wheel, then control and reliability are improved, but ease of operation deteriorates and operational risk increases at high places
Solution Approach 1:
The invention replaces the manual mechanical system of holding and rotating with an electric motor-driven system. The electric wire puller uses a motor to automatically rotate the take-up wheel, eliminating the need for the operator to manually bear the weight of the pull cord and rotate the wheel, thereby reducing physical effort and operational risk while maintaining or improving reliability through automated control.
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
Facilitates smooth and efficient wire pulling or retracting without the need for a handle, reducing labor and operational risks, especially in high places.
Implementation Method 1
forming free rotation between the roller and the take-up wheel
Data Source
AI summary
A wire puller handle that is without a handle and can be placed flat, and the wire puller includes a take-up wheel, a roller, a fixing frame and a spring tube. The take-up wheel is provided with a winding area inside to accommodate a pull cord, one side of the take-up wheel is connected to a concave frame with an accommodation portion, and the other side is provided with a hollow portion. An inner edge of the take-up wheel is provided for fixing one end of the pull cord. The roller is disposed in the accommodation portion and forms free rotation between the roller and the take-up wheel. One side of the fixing frame is fixed to the roller so that the take-up wheel is capable of being placed flat. One end of the spring tube is fixed to the fixing frame.