Trimmer Razor Cam Track Mechanism for Precise Blade Positioning
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Solution Overview
Problem
Current trimmer razors incorporated into cartridge razors have bulky surrounding material that obstructs precise blade positioning, leading to inefficient hair cutting and increased waste due to simultaneous blade dullness, resulting in higher costs and environmental impact.
Innovation Solution
A trimmer razor design featuring a handle with a pivotable head and a cam track mechanism that allows for easy blade replacement and precise positioning, using low-cost double-edged blades that last longer and can be decoupled from other blades, reducing waste and cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If trimmer razors are incorporated into cartridge razors with multiple blades, then utility and hair cutting coverage are improved, but blade positioning precision deteriorates due to bulky surrounding material
Solution Approach 1:
The cartridge is divided into separate blade modules, with the trimmer blade and main shaving blades as independent components. This segmentation allows the trimmer blade to be positioned precisely without being constrained by bulky surrounding material, while still providing comprehensive hair cutting coverage when combined with other blades.
Solution Approach 2:
The trimmer blade is positioned in a different spatial dimension or plane relative to the main blades, allowing it to operate independently without interference from surrounding cartridge material. This dimensional separation enables precise blade positioning while maintaining overall utility.
2Stability of the object's composition
If main blades and trimmer blades are connected in the cartridge, then structural integrity is improved, but waste increases due to simultaneous blade dullness
Solution Approach 1:
The blade system is segmented into replaceable main blades and a reusable trimmer blade. The main blades can be replaced independently when dull, while the trimmer blade remains in the handle and continues to function, thereby reducing blade waste while maintaining structural integrity through modular design.
Solution Approach 2:
The trimmer blade is extracted from the cartridge assembly and permanently installed in the handle. This extraction allows the main blades to be replaced independently without affecting the trimmer blade, eliminating the need to dispose of functional trimmer blades with dull main blades.
3Ease of operation
If disposable cartridge razors are used, then ease of use is improved, but cost and environmental impact worsen
Solution Approach 1:
The razor system is segmented into a reusable handle with trimmer blade and replaceable main blades. This segmentation allows users to dispose of only the dull main blades rather than the entire cartridge, reducing waste while maintaining ease of use through simple blade replacement.
Solution Approach 2:
The design enables selective discarding of consumable main blades while recovering and reusing the durable handle and trimmer blade. This approach reduces environmental impact by minimizing disposable materials while preserving ease of operation through straightforward blade replacement.
4Strength
If bulky cartridge material surrounds the trimmer blade, then structural support is improved, but visualization and positioning accuracy deteriorate
Solution Approach 1:
The trimmer blade is positioned in a different dimensional plane with minimal surrounding material, improving visualization and positioning accuracy. Structural support is maintained through the handle design rather than bulky cartridge material, allowing precise blade placement.
Solution Approach 2:
The cartridge material is minimized in the specific local area of the trimmer blade while maintaining overall structural support through the handle. This local quality adjustment enables accurate blade positioning and better visualization without compromising structural integrity.
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
The design provides a cost-effective and efficient shaving experience with longer-lasting blades, improved precision, and reduced waste by allowing for the use of low-cost double-edged blades that can be replaced independently, enhancing user control and reducing the risk of nicks and irritation.
Implementation Method 1
the extension arrangement includes a rod connected to the cover and a cam pin extending from the rod, and wherein the cam pin is configured to follow the cam track so that, when the cover moves from the closed position to the open position, the cover rotates relative to the seat
Data Source
AI summary
A trimmer razor includes a handle, a head operatively connected to the handle, the head including a base member defining a cam track, a seat extending from the base member, and a cover connected to the seat; and an extension arrangement connecting the cover to the handle so that upon rotation of the handle, the cover is movable between an open position in which the cover is spaced from the seat and a closed position in which the cover is clamped to the seat, wherein the extension arrangement includes a rod connected to the cover and a cam pin extending from the rod, and wherein the cam pin is configured to follow the cam track so that when the cover moves from the closed position to the open position, the cover rotates relative to the seat.