Metal-Covered Comb Structure to Prevent Hair Catching
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Solution Overview
Problem
Existing combs with plating treatment near the electrode part face issues of hair getting caught in gaps created by caps covering non-plated parts, and the caps impair the static electricity diffusion effect.
Innovation Solution
A comb design featuring a comb body with a plating treatment and a metal cover that covers the proximal end part, including a through hole, with a gradually decreasing distance between its surfaces, protrusions for secure fixation, and a raised ridge to prevent hair catching and maintain static electricity diffusion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a cap is used to cover the non-plated part, then the appearance problem is solved, but hair gets caught in the gap and the static electricity diffusion effect is impaired
Solution Approach 1:
The invention extracts the harmful gap between the cap and comb body by making the cap's inner surface directly contact the comb body through a tight fit structure. The cap is designed with an opening that fits over the comb body's outer peripheral surface, eliminating the gap where hair would be caught while maintaining the covered appearance.
Solution Approach 2:
The cap is nested onto the comb body in a fitted manner, where the cap's opening receives and tightly fits the comb body's outer peripheral surface. This nesting structure ensures direct contact between the cap's inner surface and the comb body, preventing hair entrapment while preserving the aesthetic coverage of the non-plated area.
2Shape
If a cap is used to cover the non-plated part, then the appearance problem is solved, but the static electricity diffusion effect is impaired
Solution Approach 1:
The cap acts as an intermediary that maintains the static electricity diffusion function while covering the non-plated area. By designing the cap to directly contact the comb body without gaps, it allows the plating treatment on the comb body to continue diffusing static electricity effectively, while the cap itself provides the necessary aesthetic coverage.
Solution Approach 2:
The cap is designed with different functional zones: the opening portion that directly contacts the comb body to maintain electrical conductivity and static electricity diffusion, and the outer surface that provides aesthetic coverage. This local differentiation ensures both appearance and functional requirements are met simultaneously.
3Ease of operation
If the distance between front surface part and reverse surface part is gradually decreased, then hair is prevented from being caught, but the cover becomes harder to attach
Solution Approach 1:
The cover employs a dynamic thickness profile where the distance between front and reverse surface parts varies along the longitudinal direction. The distal end has a smaller distance for tight contact and hair prevention, while the proximal end has a larger distance to facilitate easy attachment and detachment, creating a dynamic structure that adapts to different operational requirements.
Solution Approach 2:
The cover's geometric parameters are changed along its length, with the distance between surfaces gradually decreasing from the proximal end to the distal end. This parameter variation allows the cover to be easily attached at the proximal end while maintaining tight contact at the distal end to prevent hair entrapment.
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 comb design effectively prevents hair from being caught in gaps while maintaining the static electricity discharge function, ensuring the cover remains securely attached and reusable, and the plating treatment's effectiveness is preserved.
Implementation Method 1
the surface becomes smooth and contact friction with hair is reduced. It has been found that such comb has an effect of discharging static electricity accumulated in the hair using the human body as a ground
Implementation Method 2
since the cover is made of metal, even if the cover is attached to the comb body, the effect of static electricity diffusion by plating treatment applied to the comb body is not impaired
Data Source
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AI summary
A comb (1) according to the present invention comprises: a comb body (2) that has a through hole (4) for a plating treatment; a plurality of comb teeth (5) and a proximal end part (6) located at a proximal end from which the comb teeth (5) extend; and a cover (3) made of metal for covering front and reverse surfaces and side surfaces of the proximal end part (6) inclusive of the through hole (4) from a direction perpendicular to the longitudinal direction of the proximal end part (6), wherein the cover (3) comprises a front surface part (3a) and a reverse surface part (3b) for covering front and reverse surfaces of the proximal end part (6), as well as a side surface part (3c), the distance between the front surface part (3a) and the reverse surface part (3b) is gradually decreased toward the distal end, and, in a state where the cover (3) is separated from the comb body (2), the distance between the front surface part (3a) and the reverse surface part (3b) at the distal end is less than the thickness of the side surface of the proximal end part (6).