Alternating Hollow Combing Teeth Hair Dryer

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Solution Overview

Problem

Existing hairdressing devices that combine combing and drying often result in uneven hair stabilization, with hot air causing the hair to lay flat and scalp discomfort, requiring awkward hand positions and practice to achieve desired styles.

Innovation Solution

A hairdressing device with alternating hollow and combing teeth, where hollow teeth have outlet openings on opposite sides of a central plane, directing air flow away from the scalp and towards the hair, allowing for versatile hand-held positions and effective combing and drying.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If hot air is supplied directly down toward the scalp through hollow teeth, then drying action at the root of hair strands is improved, but hair strands lay flat against the scalp

Engineering Contradiction:

Improvedrying action at hair rootVSAvoidhair strand positioning

Core Design Contradiction:

ProductivityVSShape

Solution Approach 1:

The outlet openings in the hollow teeth are positioned asymmetrically relative to the tooth structure, with openings located on the lateral surfaces rather than at the tips. This asymmetric positioning directs air flow laterally away from the scalp while maintaining effective drying action at the hair root, resolving the contradiction between drying efficiency and hair positioning.

Inventive Principle:

Principle #4Asymmetry

2Stability of the object's composition

If curved hollow teeth with backward inclined outlet openings are used, then hair stabilization in desired position is improved, but the tips of teeth must have certain width reducing combing effect

Engineering Contradiction:

Improvehair stabilizationVSAvoidtooth structure design

Core Design Contradiction:

Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

The tooth structure is segmented into distinct functional zones: combing teeth for mechanical detangling and hollow teeth for air distribution. The hollow teeth are further segmented with multiple outlet openings positioned at different locations. This segmentation allows each element to perform its specific function optimally without compromising overall performance.

Inventive Principle:

Principle #1Segmentation

3Productivity

If hot air is supplied during combing, then drying efficiency is improved, but scalp may quickly heat up causing discomfort

Engineering Contradiction:

Improvedrying efficiencyVSAvoidscalp heating

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The air distribution is localized to specific areas through strategically positioned outlet openings in the hollow teeth. Air is delivered locally at the hair root and along the hair shaft where drying is needed, rather than being directed at the scalp. This localized quality control ensures efficient drying while preventing unwanted scalp heating.

Inventive Principle:

Principle #3Local quality

4Productivity

If air outlet openings are arranged at one side of hollow teeth, then drying and shaping in certain direction is improved, but hand-held positions become awkward

Engineering Contradiction:

Improvedrying and shaping effectVSAvoidhand-held position

Core Design Contradiction:

ProductivityVSEase of operation

Solution Approach 1:

The hollow teeth are designed with outlet openings on multiple sides, making the comb functional in various orientations and hand-held positions. This multi-directional air distribution capability allows the device to perform effectively whether held in the right or left hand, at different angles, or in various positions, providing universal applicability.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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 device efficiently shapes and dries hair without flattening it, maintaining resilience and allowing for desired styling, usable by both left and right-handed users without awkward hand positions, and preventing scalp heating.

Implementation Method 1

hollow teeth which are configured for air to flow out from outlet openings at opposite sides A, B of a central longitudinal plane L through the holder

Methodology Applied

Scientific EffectAir flow:

Implementation Method 2

When using the hairdressing apparatus while the brush is pulled through wet hair, hot air will be supplied in the combing direction and quickly dry shape the bottom part of the hair strands

Methodology Applied

Scientific EffectEvaporation: Evaporation

Data Source

PatentUS12251005B2Hairdressing apparatus

Publication Date: 2025.03.18 KAN HLDG

AI summary

Hairdressing device (1) for shaping hair, comprising a holder (2) arranged with an air distribution chamber (3) and arranged with a plurality of teeth projecting from the holder (2), the plurality of teeth comprises combing teeth (20) and hollow teeth (50, 5) wherein each hollow tooth (50) comprises a channel (51) with at least one outlet opening (52, 52a, 52b) for the air to flow from the air distribution chamber (3) and exit through the at least one outlet opening (52, 52a, 52b). The hollow teeth (50) and the combing teeth (20) are positioned in an alternating pattern (10) where a hollow tooth is placed next to a combing tooth, and the hollow teeth (50) is configured for the air to flow out from outlet openings (52) at opposite sides (AB) of a central longitudinal plane through the holder (2).