Razor Handle Bowed Ribs for Wet Grip Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wet or safety razors have limited gripping properties, especially in soapy and watery environments, leading to slipping issues during precision shaving, which can result in accidental cuts.
Innovation Solution
The design incorporates bowed rubber ribs on the upper side of the handle near the razor head, aligned along the handle length, providing a suction effect and enhanced grip, combined with rigid plastic ribs for improved tactile feel and controllability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional gripping pads or ribs are made from elastomeric compressible material, then some grip is provided, but the gripping properties are limited in soapy and watery environments causing slipping during precision shaving
Solution Approach 1:
The patent applies bowed ribs with a specific curved geometry that creates a suction effect when pressed against the finger. The curvature of the ribs allows them to deform and conform to the finger surface while maintaining contact pressure, preventing slipping in wet conditions and enabling precise control during shaving operations.
2Ease of operation
If the handle surface is made smooth for comfort, then ease of operation improves, but gripping properties deteriorate in wet environments
Solution Approach 1:
The handle combines a smooth base surface for overall comfort with localized bowed ribs that provide enhanced grip. The ribs are strategically positioned on the upper side of the handle where finger contact occurs, creating local grip enhancement without compromising the overall smoothness and comfort of the handle surface.
3Strength
If gripping ribs are made rigid for structural strength, then handle strength improves, but tactile feel and controllability deteriorate
Solution Approach 1:
The patent combines rigid plastic material for the handle base structure with elastomeric material for the bowed ribs. This composite construction provides the structural strength needed for handle integrity while the elastomeric ribs offer tactile feedback and conformability for improved controllability and user comfort.
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 bowed ribs prevent slipping and enhance gripability, allowing for precise guidance of the razor blade unit, especially in wet conditions, ensuring optimal ergonomic grip and improved shaving performance on difficult skin surfaces.
Implementation Method 1
The design incorporates bowed rubber ribs on the upper side of the handle near the razor head, aligned along the handle length, providing a suction effect and enhanced grip
Data Source
AI summary
A razor handle having a handle first end adjacent a razor head, a handle second end opposite the handle first end, an upper surface, a lower surface, and a handle length extending from the handle first end to the handle second end. The razor handle includes a rigid plastic base portion and a compressible portion. A plurality of ribs formed of the rigid plastic base portion and the compressible portion are included on the upper surface of the handle at the handle first end, each rib of the plurality of ribs having a rib first end, a rib second end, a center disposed at approximately the midpoint between the rib first and second ends, and a rib length extending from the rib first end to the rib second end. In addition, the center of each of the plurality or ribs is longitudinally aligned along the handle length.