Integrally Bent Lateral Protection Elements for Skin Irritation in Electric Beard Trimmers
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Solution Overview
Problem
Existing electric shaver and trimmer cutter systems often cause skin irritations due to sharp lateral edges and protrusions, while also struggling to achieve close and thorough cutting of longer stubbles and hair without compromising skin comfort.
Innovation Solution
The cutter system incorporates laterally bent or curved protection elements with rounded and/or chamfered contours, formed from the same material as the cutting elements, to prevent skin irritation. These protection elements are integrally formed with the cutting elements, reducing assembly steps and avoiding thermal deformation. Additionally, the use of thin metal sheets for the protection elements ensures comfortable skin engagement and reduced protrusion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If lateral protection elements are attached to cutting elements, then skin irritation is prevented, but device complexity increases
Solution Approach 1:
The lateral protection element is integrally formed with the cutting element as a single piece, merging two previously separate components (cutting element and protection element) into one unified structure. This eliminates the need for separate attachment while maintaining both the cutting functionality and skin protection features.
Solution Approach 2:
The cutting element is designed to serve multiple functions: it performs the primary cutting function with its toothed edges while simultaneously providing skin protection through its laterally extending bent portions. This multi-functionality eliminates the need for dedicated protection components.
2Object-affected harmful factors
If lateral protection elements are attached to cutting elements, then skin comfort is improved, but manufacturing complexity increases
Solution Approach 1:
The cutting element and lateral protection element are formed as a single integrated component, eliminating the need for separate manufacturing and assembly processes. This reduces manufacturing complexity while maintaining skin comfort benefits.
Solution Approach 2:
The cutting element is designed with laterally extending bent portions that change the geometric parameters of the original cutting element, adding protection functionality without requiring separate components or complex assembly steps.
3Adaptability or versatility
If multiple separate components are used, then assembly flexibility is improved, but assembly steps increase
Solution Approach 1:
The cutting element and lateral protection element are merged into a single integrated component, reducing the number of assembly steps from multiple component attachments to a single installation process, while maintaining the adaptability of the cutter system.
Data Source
AI summary
The present invention relates to a cutter system for an electric shaver and/or trimmer, comprising a pair of comb-like cutting elements with cooperating toothed cutting edges and movably supported relative to each other by a support element, wherein lateral ends of at least one of said cutting elements are provided with lateral protection elements having rounded and/or chamfered edge contours for soft skin engagement, wherein said lateral protection element is integrally formed in one part with the cutting element by an end portion of the cutting element bent away from a skin contact surface thereof and enveloping a gap movably receiving the other cutting element and/or enveloping the support element.