Removable Heated Brush Sleeve for Hair Styling Device
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Solution Overview
Problem
Existing hair curling devices are not easily customizable with different brush designs and require complex designs that increase manufacturing costs and user complexity.
Innovation Solution
A hair curling device with a removable sheath that integrates heating into a pivot connection on the body, allowing for easy replacement of brushes with different pin configurations, and a gripper element that can be substituted with a sheath, using snap-fastening or screwing mechanisms for secure attachment, made from materials like polyamide with glass fibers for efficient thermal conduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If heating elements are integrated into each brush, then each brush can be independently heated, but manufacturing cost increases and device complexity increases
Solution Approach 1:
The heating element is extracted from the brush and relocated to the mandrel. The brush is reduced to a simple sleeve without integrated heating elements, while the mandrel contains the heating element that heats the sleeve through thermal conduction. This extraction resolves the contradiction by maintaining the heating function while significantly reducing brush manufacturing complexity and cost.
Solution Approach 2:
The mandrel is designed to serve multiple functions: it acts as the rotational drive shaft, contains the heating element, and provides the thermal conduction path to the brush sleeve. This multi-functionality consolidates components and reduces overall device complexity while maintaining reliable heating capability.
2Adaptability or versatility
If brushes with different designs are integrated with heating elements, then various brush configurations can be achieved, but manufacturing cost increases
Solution Approach 1:
The brush system is segmented into two independent parts: a standardized mandrel containing the heating element and rotational mechanism, and interchangeable brush sleeves with various designs. This segmentation allows the heating component to be manufactured once and reused, while only the simpler sleeve portions need to be varied for different brush configurations, significantly reducing manufacturing costs.
Solution Approach 2:
The heating function is localized to the mandrel, while the brush sleeves are designed with local variations in bristle configuration, density, and arrangement. This allows each sleeve to have specialized local characteristics for different styling needs without requiring full heating element integration in each variant.
3Reliability
If the brush is permanently attached to the mandrel, then secure connection is achieved, but ease of replacement and customization is reduced
Solution Approach 1:
The connection between the brush sleeve and mandrel is designed to be dynamically changeable rather than permanently fixed. The sleeve can be easily attached to and detached from the mandrel, providing a reversible connection that maintains security during use while enabling quick replacement and customization. This dynamic attachment system resolves the contradiction by allowing the connection state to adapt to different operational needs.
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 cost-effective production of hair curling devices with various brush designs and simplifies user operation by allowing easy conversion between brush and clip modes while maintaining secure attachment for efficient heat transfer and durability.
Implementation Method 1
The brush is heated by thermal conduction by heating the mandrel
Data Source
Figure 1~2
Figure 3~5
AI summary
The invention relates to a hair curling device (1) which comprises a body (2) configured to be handled, a mandrel (3), which extends, along a longitudinal axis (X), the body to which it is assembled, means of heating the mandrel by thermal conduction, means of driving the mandrel in rotation about the longitudinal axis (X). A sleeve (9) is configured to form a brush (8) and to be inserted over the mandrel, means of removable attachment (21) being arranged between the mandrel and the sleeve so as to prevent the sleeve from rotating about the longitudinal axis (X) and from effecting a translational movement along said longitudinal axis (X) with respect to the mandrel. The invention allows ease of fitting and removal of the brush onto and from the mandrel. In a preferred embodiment, the curling device can be converted into a heated brush or into heated tongs.