Razor Handle Contact Geometry for Hygienic Blade-Up Placement
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Solution Overview
Problem
Existing razor handles are not hygienic when placed on the floor due to the cutting edge of the blade facing downwards, leading to potential contamination and damage from foreign substances, and the lubricating member is at risk of damage when in contact with the floor.
Innovation Solution
A razor handle design with specific contact portions and curvatures that allow it to be stably and hygienically placed on the floor, ensuring the cutting edge is not adjacent to the floor, and the lubricating member remains isolated from it.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the razor handle is placed on the floor with the cutting edge facing downwards for stability, then the placement is simple and stable, but the cutting edge and lubricating member are exposed to contamination and damage from foreign substances
Solution Approach 1:
The patent inverts the conventional placement orientation by designing the rear portion with contact portions that enable the razor to be placed with the cutting edge facing upward or sideways instead of downward. The first contact portion and second contact portion are positioned on the rear portion to support the razor in this inverted orientation, preventing the cutting edge from contacting the floor while maintaining stability through the curved surface geometry.
Solution Approach 2:
The curved surface with specific contact portions acts as an intermediary structure between the razor body and the floor. This curved surface mediates the placement orientation, allowing the razor to rest stably on the floor through the contact portions while keeping the cutting edge and lubricating member elevated and isolated from direct contact with the floor surface.
2Object-affected harmful factors
If the cutting edge is isolated from the floor to prevent contamination, then hygiene is improved, but the placement stability and ease of positioning are reduced
Solution Approach 1:
The patent employs curvature by designing the rear portion with a curved surface that has specific contact portions. This curved geometry enables the razor to achieve stable placement on the floor while maintaining the cutting edge at an elevated position. The curvature allows the contact portions to make firm contact with the floor, providing stability without requiring the cutting edge to touch the surface.
3Object-affected harmful factors
If the lubricating member is protected from floor contact, then damage and contamination are prevented, but the structural complexity of the handle increases
Solution Approach 1:
The curved surface with contact portions serves multiple functions simultaneously: it provides structural support for stable placement, determines the correct orientation of the razor, protects the cutting edge from contamination, and shields the lubricating member from damage. This multi-functional design achieves protection without requiring separate protective components, thereby avoiding excessive structural complexity.
Data Source
AI summary
A razor handle is proposed. The razor handle may include a front portion facing a direction in which a cutting edge of the razor blade is exposed, and a rear portion formed on an opposite side to the front portion. The rear portion may include a first portion and a second portion arranged to be spaced part from each other in a longitudinal direction of the razor handle and capable of coming into contact with the floor. The first portion may include a first contact portion capable of coming into contact with the floor. The second portion may include a second contact portion and a third contact portion arranged to be spaced apart from each other in a widthwise direction and capable of coming into contact with the floor.