Staggered Matrix Razor Head Blade Intervals
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Solution Overview
Problem
Conventional razor heads suffer from low shaving efficiency, poor shaving effect, and uncomfortable use due to evenly spaced blades leading to inconsistent shaving angles and poor beard-trimmings guiding, resulting in low blade utilization and increased skin stimulation.
Innovation Solution
A matrix beard-trimmings guiding razor head with blade assemblies arranged in a staggered pattern, featuring varying assembly and blade intervals between 0.2-5mm and 0.15-1.5mm respectively, with a lubricating strip and stopper modules for precise blade installation and reduced skin contact, allowing for efficient shaving and improved beard-trimmings guiding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If blades are arranged evenly distributed on the blade holder, then the structure is simple and easy to manufacture, but the blade will be loosened easily and the shaving angle will be inconsistent
Solution Approach 1:
The patent applies asymmetry by transitioning from evenly distributed blades to a staggered matrix arrangement where blades are positioned at different intervals. The first blade assembly has a different interval from subsequent blade assemblies, creating an asymmetric pattern that improves shaving angle consistency while maintaining manufacturing feasibility through standardized components.
Solution Approach 2:
The patent implements local quality by varying the interval between blade assemblies rather than using a uniform distribution. Specifically, the interval between the first and second blade assembly differs from the interval between subsequent blade assemblies, allowing different regions of the blade holder to serve different functional purposes for optimal shaving performance.
2Device complexity
If blades are arranged evenly distributed, then the structure is simple, but the following blades do not really play their role and the shaving efficiency will be lowered
Solution Approach 1:
The asymmetric staggered arrangement ensures that each blade assembly engages the beard at different positions and angles, allowing all blades to actively participate in the shaving process rather than just the first blade taking the main pressure. This increases shaving efficiency by utilizing the full potential of multiple blades.
Solution Approach 2:
The patent transitions from a single-dimensional linear arrangement to a two-dimensional matrix arrangement with staggered rows and columns. This dimensional change allows blades to be positioned at multiple levels and angles, enabling each blade to access different portions of the beard and significantly improving overall shaving efficiency.
3Ease of manufacture
If gaps between blades are the same width, then the manufacturing is simple, but the utilization rate of the blade is low and the shaving effect is poor
Solution Approach 1:
The patent employs asymmetric gap widths between blade assemblies, where the gap after the first blade assembly differs from subsequent gaps. This asymmetry allows optimization of blade engagement for different beard densities and lengths, improving blade utilization rate and shaving effect while maintaining reasonable manufacturing simplicity through standardized gap tolerances.
Solution Approach 2:
Different gap widths are assigned to different positions in the blade arrangement. The varying gaps allow local optimization where specific blade assemblies can handle different types of beard growth, thereby improving overall blade utilization and shaving performance across diverse user needs.
4Device complexity
If evenly spaced blades are used, then the structure is simple, but the beard-trimmings guiding is poor and the use is uncomfortable
Solution Approach 1:
The asymmetric staggered arrangement creates natural channels and pathways between blade assemblies that effectively guide beard trimmings away from the skin surface. This asymmetric pattern prevents trimmings from becoming lodged between evenly spaced blades, improving comfort and reducing the need for frequent cleaning.
Solution Approach 2:
The staggered matrix arrangement creates curved and varied pathways for beard trimmings to follow, rather than straight uniform gaps. This curvature effect helps guide trimmings away from the skin and through the blade assembly more effectively, improving user comfort and operational ease.
Data Source
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AI summary
A matrix beard-trimmings guiding razor head includes a blade holder (1) and two or more blade assemblies (2) disposed on the blade holder (1) and arranged parallel to one another, and each blade assembly (2) has two or more layers of parallelly arranged blades. An assembly interval is arranged between two adjacent blade assemblies (2), and the assembly interval has a width of 0.2∼5mm. A layer interval is arranged between two adjacent layers of blades in each group of blade, and the layer interval has a width of 0.15∼1.5mm. The matrix beard-trimmings guiding razor head of this disclosure has the features of high assembling precision, convenient installation, long service life of the razor head, significant beard-trimmings guiding effect, and good shaving effect.