Cable Stripper Roller and Pivot Blade for Safer Sheath Cutting
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Solution Overview
Problem
The use of knives to strip the outer sheath of electrical cables poses a risk of injury to installers during electrical installations.
Innovation Solution
A stripping tool with a support structure, a rotatable roller for guiding the cable, and a pivotable cutting element arm with a cutting blade that aligns with the roller surface to cut the cable sheath along its longitudinal extension.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a knife is used to strip the outer sheath of a cable, then the sheath can be removed effectively, but the risk of injury to the installer increases
Solution Approach 1:
The patent introduces a roller as an intermediary component between the cable and the cutting element. The roller guides the cable through the device and provides a stable surface for the cutting element to engage with the sheath, eliminating the need for the installer to directly manipulate a knife blade while maintaining effective sheath removal
Solution Approach 2:
The device is designed so that the cable itself is fed through the roller and positioned automatically against the cutting element. The installer simply needs to feed the cable through the device, and the mechanical components (roller and cutting element) perform the stripping action automatically, reducing direct human interaction with dangerous cutting edges
2Device complexity
If a fixed cutting element is used, then the device structure is simple, but the cable must be precisely positioned for effective cutting
Solution Approach 1:
The cutting element is mounted on a pivotable arm that can rotate about a pivot axis. This dynamic mounting allows the cutting element to adjust its position relative to the cable during operation, accommodating variations in cable positioning while maintaining effective cutting contact, thus reducing the precision requirements for initial cable placement
3Manufacturing precision
If the cutting element is aligned with the roller surface, then the cable is properly guided during cutting, but the cutting element must be precisely positioned
Solution Approach 1:
The roller is pre-configured with a specific surface orientation and position relative to the pivot axis. This preliminary setup establishes the correct geometric relationship between the roller and cutting element, so that when the cutting element is positioned at the predetermined location, automatic alignment with the cable path is achieved, reducing the need for complex adjustment mechanisms
Data Source
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AI summary
A stripping tool (100) is provided. The stripping tool (100) comprises a support structure (101). A roller (102) is arranged along an axis (A) in the support structure (101) through the center of the roller (102). The roller (102) comprises a circumferential roller surface (103) transversally to the axis (A) for guiding a cable along its longitudinal extension. A cutting element (104) is arranged on a cutting element arm (106) pivotably connected to the support structure (101). The cutting element (106) being arranged perpendicular to the first axis (A), such that a sheath on the cable may be cut along the longitudinal extension as the cable is displaced along the direction of its longitudinal extension.