Axial Torque Tool for Bent F-Type Coaxial Connectors
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Solution Overview
Problem
The increased density of TV devices in small spaces makes it difficult to install, remove, and tighten F-type coaxial cable connectors due to the need for sharp bends in cables, which increases torque requirements beyond what can be achieved by hand, and existing tools are ineffective in confined areas.
Innovation Solution
A tool comprising a tubular wrench portion with arc portions and a hollow grasping portion, equipped with a C-shaped fastening ring, provides mechanical advantage to connect or disconnect male F-type coaxial cable connectors from female connectors, even when cables are bent, preventing wear on the connector ring and allowing operation in tight spaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a standard open-end wrench is used to tighten the F-type connector, then sufficient torque can be applied, but the tool requires radial open space that is not available in high-density installations
Solution Approach 1:
The patent transitions from radial torque application (standard wrench) to axial torque application (pushing tool). The tool pushes along the cable axis to rotate the connector, eliminating the need for radial clearance while maintaining torque application capability
Solution Approach 2:
The patent introduces a specialized pushing tool as an intermediary device that converts linear pushing force into rotational torque. The tool includes a hexagonal drive interface that engages the connector and a pushing surface that transmits axial force to rotate the connector in confined spaces
2Adaptability or versatility
If the cable is bent to fit tight spaces, then device density increases, but the torque required to install or remove the connector increases beyond finger capability
Solution Approach 1:
The pushing tool serves as a mechanical intermediary that amplifies the user's pushing force into sufficient torque to overcome the increased resistance caused by cable bends, enabling connector installation/removal in high-density configurations
Solution Approach 2:
The tool design allows dynamic adaptation to different cable bend scenarios. The pushing mechanism can apply variable force along the cable axis, adjusting to the specific torque requirements imposed by different bend radii and cable stiffness
3Ease of operation
If the cable is straightened to facilitate connector installation, then connector installation becomes easier, but the available space in high-density installations is reduced
Solution Approach 1:
Instead of straightening the cable to ease installation (conventional approach), the patent inverts the approach by keeping the cable bent and using a pushing tool that operates axially along the bent cable to install the connector
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 secure attachment and detachment of F-type coaxial cable connectors in high-density installations by providing the necessary torque and mechanical advantage, overcoming the challenges of bent cables and confined spaces, while preventing wear on the connector ring.
Implementation Method 1
the arc portions have an outer surface for installing the C-shaped fastening ring thereon to generate torsion and an inner surface formed with a shaped portion to engage with the shaped outer surface of the connector ring. The arc portions are outwardly extended by the torsion when the predetermined torsion is enough to deform the arc portions of the tubular wrench portion.
Implementation Method 2
provides mechanical advantage to connect or disconnect male F-type coaxial cable connectors from female connectors
Data Source
AI summary
A tool operable for connecting a male F-type coaxial cable connector includes a tubular wrench portion and a hollow grasping portion. The tubular wrench portion comprises a first end, a second end, a hollow body portion located between the first and second ends and a plurality of arc portions located at the first end. The hollow body portion has a first slot extending from the first end to the second end, wherein the arc portions have an outer surface for installing the C-shaped fastening ring thereon to generate torsion and an inner surface formed with a shaped portion to engage with the shaped outer surface of the connector ring. The arc portions are outwardly extended by the torsion when the predetermined torsion is enough to deform the arc portions of the tubular wrench portion. The hollow grasping portion having an annular front end disposing on the second end of the tubular wrench portion, a distal end, and a second slot formed between the annular front end and the distal end and connected to the first slot of the hollow body portion. The tool is particularly useful for attaching (or detaching) the male connector to the female connector when the coaxial cable is bent.