Single-Blade Razor Head with Pivoting Aperture for Skin Adaptation
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Solution Overview
Problem
The market for shaving tools has been dominated by multi-blade cartridges, which do not significantly improve shaving performance, and there is a need for a superior single-blade shaving experience and a more durable razor design.
Innovation Solution
A single-blade razor apparatus with a handle and a pivotably mounted head, featuring a rear aperture for receiving a single blade and a front side for exposing the blade's cutting edge, along with a mechanism for retaining the blade that allows it to move in multiple dimensions during use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multi-blade cartridges are used, then market dominance and perceived shaving improvement are achieved, but actual shaving performance does not significantly improve and device complexity increases
Solution Approach 1:
The patent extracts the essential shaving function from the multi-blade system and implements it with a single blade. The head assembly is designed to accommodate only one blade, eliminating redundant blades while maintaining effective shaving through optimized blade geometry and positioning relative to the skin surface.
Solution Approach 2:
Instead of adding multiple blades to improve shaving, the patent inverts the approach by using a single blade with optimized characteristics. The focus shifts from quantity to quality, with the single blade featuring precise edge geometry and strategic positioning to achieve superior shaving performance without the complexity of multiple blades.
2Device complexity
If a single blade is used, then device simplicity and durability are improved, but the blade must adapt to non-uniform skin surfaces
Solution Approach 1:
The patent implements dynamic adaptability through the head assembly's ability to pivot and flex relative to the handle. This allows the single blade to dynamically adjust its position and angle in response to variations in skin surface topology, maintaining optimal contact and cutting performance across non-uniform surfaces.
Solution Approach 2:
The blade is designed with specific local characteristics including optimized edge geometry, precise positioning features, and targeted exposure depth. These local quality enhancements ensure that the single blade can effectively adapt to and cut through hair on non-uniform skin surfaces while maintaining overall structural simplicity.
3Manufacturing precision
If the blade is rigidly fixed, then manufacturing precision is improved, but shaving comfort decreases on non-uniform skin
Solution Approach 1:
The retaining mechanism incorporates controlled flexibility that allows the blade to maintain precise manufacturing positioning during assembly while permitting dynamic movement during operation. The mechanism enables the blade to shift slightly in response to skin contours while preventing excessive movement that would compromise cutting precision.
Solution Approach 2:
The patent employs a retaining mechanism with adjustable parameters that balance fixed positioning and flexible movement. The mechanism allows controlled variation in blade position and angle within specific ranges, optimizing the balance between manufacturing precision and adaptive comfort on non-uniform skin surfaces.
Data Source
AI summary
A single-blade razor apparatus and methods are for manufacturing the same. A razor apparatus includes a handle and a head pivotably mounted on the handle. The head includes a rear side including an aperture for receiving a single blade, as well as a front side through which a cutting edge of the blade is exposed during use. An upper portion and a lower portion of the head form the aperture. The lower portion physically interfaces with the upper portion so that a front region of the upper portion is physically supported by the lower portion. In a particular implementation, the lower portion includes several protruding latches proximate the front side of the head, which respectively mate with recesses formed in the upper portion. Alternatively, the latches are formed in the upper portion and respectively mate with recesses formed in the lower portion.