Intimate Area Thinning Razor with Alternating Blade Coverage
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Solution Overview
Problem
Conventional razors fail to address the user's need for partial hair removal in intimate areas without clearly visible boundaries and often cause skin discomfort or damage due to direct contact with the blade edge.
Innovation Solution
A thinning razor with a comb portion featuring alternating blade edge exposed and covered sections, narrow comb teeth intervals, and groove portions to facilitate gradual hair reduction and minimize skin contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional razors are used to remove body hairs, then hair removal is achieved, but the boundary between removed and unremoved parts becomes clearly visible and excessive hair removal occurs
Solution Approach 1:
The comb portion is segmented into multiple comb teeth with different functions: some comb teeth have exposed blade edges for cutting hairs, while others have covered blade edges for combing without cutting. This segmentation allows selective hair removal in different regions, creating a gradual transition zone that blurs the boundary between removed and unremoved hair areas.
Solution Approach 2:
Different regions of the comb portion are assigned different qualities: the comb teeth at certain positions have exposed blade edges for active cutting, while comb teeth at other positions have covered blade edges for passive combing. This local differentiation enables controlled, gradual hair thinning rather than uniform removal, achieving the desired aesthetic effect.
2Productivity
If the razor head contacts the skin to remove body hairs, then hair removal is effective, but skin enters between comb teeth and touches the blade edge causing discomfort or damage
Solution Approach 1:
The comb teeth act as an intermediary between the skin and the blade edge. The comb teeth physically block the skin from contacting the exposed blade edges, while still allowing hairs to be combed and cut. This intermediary structure maintains hair removal functionality while eliminating direct skin-blade contact that causes discomfort and damage.
Solution Approach 2:
The harmful function of direct skin contact with the blade edge is extracted and eliminated by introducing covered blade edge portions. These covered portions remove the dangerous exposure while preserving the useful combing function, separating the beneficial hair cutting action from the harmful skin contact.
3Ease of operation
If comb teeth are spaced far apart for easy operation, then operability is improved, but skin can easily enter between comb teeth and contact the blade edge
Solution Approach 1:
The comb portion is segmented into alternating exposed and covered blade edge sections along the comb teeth. This segmentation allows the comb teeth to maintain sufficient spacing for easy combing operation while the covered sections prevent skin from contacting exposed blade edges, resolving the contradiction between operability and safety.
Data Source
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AI summary
An intimate area thinning razor for reducing body hairs, in which a comb portion includes a plurality of comb teeth, and includes a blade edge exposed portion where a blade edge of a blade body is exposed and a cover portion where the blade edge of the blade body is covered as not to be exposed, and the comb teeth are provided at both ends in the width direction of the cover portion and between both of the ends, and a set of the blade edge exposed portion and the cover portion arranged in a predetermined manner is disposed repeatedly. A ratio of a total of lengths between center portions in the width direction of the comb teeth adjacent to the plurality of blade edge exposed portions, relative to a length between center portions in the width direction of the comb teeth at outermost positions in the width direction of the comb portion, is 1/10 or larger but not exceeding 4/10. A plurality of groove portions are each formed on an extended line of a gap between the comb teeth.