Rotatable Cover Razor for Tool-Free Blade Replacement
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Solution Overview
Problem
There is a need for a shaving device that allows for quick and easy exchange of straight razor blades, providing a comfortable ergonomic grip and the ability to support multiple blade types, including double-edge, standard injector, and Feather type injector blades, while ensuring safety through a protective cover mechanism.
Innovation Solution
A razor device with a foldable or non-foldable handle, featuring a blade support member, a rotatable cover member, and a screw-type fastener that allows for tool-free blade replacement, incorporating magnets and protrusions for secure blade positioning and alignment, ensuring consistent blade exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a traditional fixed razor design is used, then the structure is simple, but blade replacement is difficult and time-consuming
Solution Approach 1:
The razor is divided into separate components: a handle, a blade support member with recesses, and a cover member. This segmentation allows the blade to be quickly exchanged by simply removing the cover member and replacing the blade cartridge, significantly improving replacement speed while keeping each component simple in structure.
Solution Approach 2:
The cover member is designed to be rotatable relative to the blade support member, transitioning between a closed protective position and an open accessible position. This dynamic mechanism enables quick blade access and replacement without requiring complete disassembly of the razor, balancing speed improvement with structural simplicity.
2Object-affected harmful factors
If a protective cover is added to prevent accidental injuries, then safety is improved, but blade access becomes more complex
Solution Approach 1:
The cover member is designed as a rotatable component that can be easily turned from a closed protective position to an open accessible position. This dynamic design allows the cover to provide protection during storage and transport, while enabling quick and easy blade access when needed, thus maintaining both safety and ease of operation.
Solution Approach 2:
The rotatable cover member acts as an intermediary between the user and the sharp blade. It provides a protective barrier during normal handling, while its rotation mechanism serves as a simple intermediary action to access the blade for replacement, eliminating the need for complex locking mechanisms or tools.
3Adaptability or versatility
If the razor is designed to support multiple blade types, then versatility is improved, but device complexity increases
Solution Approach 1:
The blade support member is designed with multiple recesses of different configurations to accommodate various blade types such as double-edge blades, standard injector blades, and Feather type injector blades. The handle and cover member remain universal and unchanged, allowing the same razor body to support multiple blade variants without increasing overall device complexity.
Solution Approach 2:
The razor is segmented into a universal handle and cover member, and interchangeable blade cartridges with specific recess configurations. This segmentation allows the handle to remain simple and universal, while the blade cartridges provide the necessary variations for different blade types, achieving versatility without complicating the main device structure.
4Reliability
If a screw-type fastener is used for secure blade attachment, then reliability is improved, but tool-free operation becomes difficult
Solution Approach 1:
The rotatable cover member serves as an intermediary mechanism that simplifies the blade replacement process. Instead of requiring tool operation on a screw fastener, the user simply rotates the cover member to open it, accesses the blade, replaces it, and then rotates the cover member to close and secure the blade. This intermediary rotation mechanism maintains secure attachment while enabling tool-free operation.
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 efficient and safe blade replacement without tools, providing a comfortable grip and supporting various blade types, ensuring consistent blade exposure for accurate shaving operations.
Implementation Method 1
The razor device can include one or more magnets supported by the cover member
Data Source
AI summary
A razor for supporting a razor blade comprising a blade support arm, a handle element, and a cover element coupleable with the blade support arm. The razor can removably support the razor blade between the blade support arm and the cover element. The blade support arm can have a recess formed therein, and the cover member can be coupled with the blade support arm adjacent to the recess. Additionally, the cover member can be rotatable relative to the blade support arm to allow easy removal and/or replacement of the blade.