Wire Puller With Collapsible Arms And Conduit Adapter
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wire pullers are limited in their ability to apply sufficient force to pull large wires through long or bent conduits, lack adjustability, and are inconvenient to transport and set up, making them unsuitable for various installation locations and applications.
Innovation Solution
A wire puller with a collapsible and wheeled design, featuring pivotable and telescoping arms, a vertical capstan orientation, and a conduit adapter that allows secure attachment to the conduit without threading the pulling line through it, enabling higher pulling forces and easier setup and use from multiple locations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If existing wire pullers are used to pull large wires through long or bent conduits, then the wire pulling function is provided, but the device lacks sufficient force and stability
Solution Approach 1:
The wire puller employs a counterweight mechanism where the operator's body weight is utilized through a lever arm system. The device includes a base with a vertical arm that can be positioned against the conduit, and a horizontal arm that extends to the pulling mechanism. By applying force through this lever system, the operator's weight provides additional downward force, increasing the stability and pulling capacity without requiring a heavy motorized system.
2Force
If wire pullers are designed for high force application, then pulling capability is improved, but the device becomes difficult to transport and set up
Solution Approach 1:
The wire puller is divided into separable components: a base portion that can be positioned against the conduit, and an arm assembly that can be attached and adjusted as needed. This segmentation allows the main body to remain compact and easy to transport, while the pulling mechanism can be configured for high force application when needed. The base includes a conduit engagement mechanism that can be quickly positioned, and the arm assembly can be adjusted to different angles and lengths.
Solution Approach 2:
The wire puller incorporates adjustable and movable components, including telescoping arms that can extend or retract, and pivot joints that allow the arms to be positioned at different angles. This dynamic design enables the device to be compact for transport and then expanded or configured for high-force pulling operations. The arms can be adjusted to optimize the mechanical advantage for different pulling scenarios.
3Ease of operation
If wire pullers are made compact for transport, then mobility is improved, but the reach and positioning flexibility are reduced
Solution Approach 1:
The wire puller design allows components to be nested or collapsed into each other for compact storage and transport. The horizontal arm can be positioned parallel to the vertical arm, and telescoping sections can be retracted into each other, reducing the overall footprint. When deployed, these same components can be extended and positioned at various angles to reach difficult locations and provide positioning flexibility for different conduit configurations.
4Device complexity
If traditional wire pulling methods are used, then simple equipment is required, but sufficient force cannot be applied to large wires in complex conduits
Solution Approach 1:
The wire puller introduces a mechanical intermediary system between the operator and the wire being pulled. The lever arm mechanism acts as a force multiplier, converting the operator's input force (augmented by body weight) into high pulling force on the wire. This intermediary mechanical system provides the necessary force multiplication without requiring complex motorized equipment, maintaining relative simplicity while achieving high pulling capacity.
Data Source
AI summary
Concepts and technologies are disclosed herein for wire pullers and conduit adapters. According to various embodiments, a wire puller includes first and second positionable arms. The wire puller also can include an adapter and adapter bracket. In some embodiments, the adapter and adapter bracket are configured to allow easier pulling of wire through conduit. Some embodiments of the wire puller are configured to allow for easier set up and use compared to existing wire pullers. Some embodiments of the wire pullers also are configured to provide increased pulling force over existing wire pullers.