Rotatable Hair Care Device with Bristle Plate Heat Protection

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Solution Overview

Problem

Existing hair styling devices are specialized for either straightening, curling, or volumizing, requiring multiple devices and taking up space, while existing multi-functional devices do not effectively incorporate volumizing capabilities.

Innovation Solution

A hair care device with rotatable heating tips and a bristle plate for heat protection, allowing for easy switching between straightening, curling, and volumizing modes using the same device, featuring convex and concave heating surfaces for enhanced performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple specialized hair styling devices are used for straightening, curling, and volumizing, then each function can be performed effectively, but the number of devices increases and occupies more space

Engineering Contradiction:
Improvehair styling functionalityVSAvoidstorage space
Core Design Contradiction:
Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The patent implements a single hair styling device that can perform multiple functions (straightening, curling, and volumizing) by incorporating interchangeable heating tips with different geometries. The basic device structure remains universal while the functional tips are swapped to achieve different styling effects, eliminating the need for multiple separate devices and reducing storage space requirements.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The device is segmented into a permanent base structure and interchangeable heating tip components. By separating the universal device body from the function-specific heating tips, the patent allows users to swap tips based on styling needs rather than storing multiple complete devices, thus maintaining versatility while minimizing storage volume.

Inventive Principle:
Principle #1Segmentation

2Volume of moving object

If a single device is designed to perform multiple hair styling functions, then storage space is reduced, but the device complexity increases

Engineering Contradiction:
Improvestorage spaceVSAvoiddevice structure
Core Design Contradiction:
Volume of moving objectVSDevice complexity

Solution Approach 1:

The device is divided into a simple permanent base structure and separate interchangeable heating tips. This segmentation keeps the main device body uncomplicated while allowing functional complexity to be contained in the replaceable tips, making the overall system easier to manufacture and maintain despite offering multiple functions.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The universal base structure is designed with standardized interfaces that accommodate different heating tip types. This approach maintains simplicity in the core device while enabling multiple functions through the interchangeable tips, avoiding the need for complex integrated mechanisms for each styling function.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If heating tips are made with different shapes for different styling modes, then styling effectiveness is improved, but manufacturing complexity increases

Engineering Contradiction:
Improvestyling mode capabilityVSAvoidheating tip production
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

By segmenting the heating elements into separate interchangeable tips rather than integrating multiple heating mechanisms into one complex unit, the patent simplifies manufacturing. Each tip can be manufactured independently using standard heating element fabrication processes, then assembled into the universal device base, reducing overall manufacturing complexity despite offering multiple styling capabilities.

Inventive Principle:
Principle #1Segmentation

4Object-affected harmful factors

If the device includes safety features like distance elements and heat protection, then user safety is improved, but the device structure becomes more complex

Engineering Contradiction:
Improveheat protectionVSAvoiddevice structure
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent introduces distance elements as intermediary components between the heating tips and the user's hair or scalp. These elements act as thermal mediators that reduce direct heat exposure while allowing the styling function to continue. The distance elements are integrated into the tip structure itself, adding safety functionality without requiring separate complex safety systems.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Enables three-in-one hair styling (straightening, curling, and volumizing) with a single device, improving user convenience and reducing the need for multiple appliances while ensuring safety and effective heat distribution.

Implementation Method 1

the first heating tip is rotatably coupled to the first handle part to permit a user to rotate the first heating tip relative to first handle part about the first longitudinal axis to switch between a straightening or volumizing mode and a curling mode

Methodology Applied
Scientific EffectRotation:

Implementation Method 2

the first heating tip has a convex-shaped first heating surface... the second heating tip has a concave-shaped second heating surface that matches an outer contour of the first heating surface

Methodology Applied
Scientific EffectHeat conduction: Conduction (thermal)

Implementation Method 3

distance elements to prevent a user from getting burned, wherein the distance elements are arranged at a side of the first heating tip opposite the convex-shaped first heating surface

Methodology Applied
Scientific EffectThermal insulation: Thermal Insulation

Data Source

PatentEP2953500B1Hair care device
Publication Date: 2016.07.20 KONINKLIJKE PHILIPS NV
  • EP2953500B1 patent drawingFigure 1a~1b
  • EP2953500B1 patent drawingFigure 2a~2b
  • EP2953500B1 patent drawingFigure 3a~3b

AI summary

The present invention relates to a hair care device (10) for straightening, curling and/or volumizing hair, the hair care device comprising: - a first jaw (12) that extends along a first longitudinal axis (30) and comprises a first handle part (16) which is coupled to a first heating tip (20), wherein the first heating tip (20) has a convex- shaped first heating surface (34), and distance elements (36, 40) to prevent a user from getting burned, preferably a bristle plate (36) that comprises a plurality of bristles or ribs (40), wherein the distance elements are arranged at a side (38) of the first heating tip (20) opposite the convex-shaped first heating surface (34), and wherein the first heating tip (20) is rotatably coupled to the first handle part (16) to permit a user to rotate the first heating tip (20) relative to first handle part (16) about the first longitudinal axis (30) - a second jaw (14) that extends along a second longitudinal axis (32) and comprises a second handle part (18) which is coupled to a second heating tip (22); and wherein the first and the second jaw (12, 14) are coupled to each other, and via the handle parts (16, 18) moveable relative to each other between an open position and a closed position.