Hand-Held Pipe Cutter With Multiple Apertures and Retractable Blades
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Solution Overview
Problem
Existing hand-held cutting tools are limited in their ability to accommodate different sizes of pipes or tubing, provide inadequate support during cutting, and obstruct viewing of the cutting interface, often using only knife-style blades that restrict their application.
Innovation Solution
A hand-held cutting tool with multiple apertures of varying sizes, retractable blades, and blade access regions that allow for stabilization and improved visibility, enabling cutting of various pipe sizes and additional functions like chamfering and finishing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single aperture is used in the housing, then the tool structure is simple, but the tool can only accommodate a single size or small range of pipe sizes
Solution Approach 1:
The housing is segmented into multiple aperture openings of different sizes, allowing the tool to accommodate various pipe diameters. Each aperture is positioned to receive pipes of specific size ranges, enabling the single tool to handle multiple pipe sizes without requiring multiple specialized tools.
Solution Approach 2:
The tool is designed with universal applicability through multiple apertures that can accommodate different pipe sizes, making a single tool capable of performing the cutting function across a wide range of pipe dimensions rather than requiring size-specific tools.
2Productivity
If the blade is pressed against the pipe to provide cutting force, then the cutting action is effective, but the pipe wall is detrimentally deformed
Solution Approach 1:
The tool provides localized support through positioning features that contact specific regions of the pipe, distributing the support force to prevent deformation while allowing the blade to apply concentrated cutting force at the cutting interface. The positioning features are designed to contact the pipe at optimal locations to maintain pipe wall integrity during cutting.
3Stability of the object's composition
If stabilization guides are spaced about the pipe to prevent deformation, then pipe stability is improved, but viewing of the cutting interface is obstructed
Solution Approach 1:
The positioning features are designed to be minimally intrusive, extracting only the essential stabilizing function while minimizing obstruction of the cutting interface view. The features are positioned and sized to provide necessary pipe stability while maintaining clear visibility and access to the cutting zone.
4Adaptability or versatility
If only knife-style cutting blades are used, then the tool structure is simple, but the application range is limited
Solution Approach 1:
The blade system is designed to be changeable and adaptable, allowing the user to select different blade types (knife-style, wheel, abrasive) based on the specific cutting application and pipe material. This dynamic configuration capability enables the tool to handle diverse cutting tasks while maintaining a relatively simple overall structure through modular blade attachment.
Data Source
AI summary
A hand-held cutting tool is described which is used to readily cut or sever flexible pipe or tubing. The tool features one or more openings in the body of the tool sized to accommodate pipe or tubing to be cut. The tool is used to cut tubing by inserting the tubing into one of the apertures. A retractable blade is urged against the tubing and the tool then orbited about the tubing and/or the tubing rotated until the blade severs the tubing.