Hair Clipper Comb Attachment With Textured Skin Contact Surface
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Solution Overview
Problem
Existing cutting device attachments that slide on the skin for cutting hair to a uniform length lack sufficient sliding properties, leading to potential variations in cutting height and uneven cuts.
Innovation Solution
The attachment features a comb part with a skin contact surface and a pair of sandwiching walls, including an uneven part to enhance sliding properties, allowing for improved attachment to the cutting device and ensuring consistent cutting height.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the skin contact surface is made smooth for comfortable skin contact, then the comfortability is improved, but the sliding properties deteriorate
Solution Approach 1:
The skin contact surface is designed with different local properties: a smooth base surface for comfortability and localized uneven parts (protrusions and recesses) for enhanced sliding properties. This local differentiation allows the surface to simultaneously provide comfort during skin contact and reliable sliding control through the interlocking uneven parts.
2Ease of manufacture
If the attachment structure is made simple for ease of manufacture, then the manufacturing complexity is reduced, but the ability to maintain consistent cutting height deteriorates
Solution Approach 1:
The uneven parts on the skin contact surface feature rounded protrusions and recesses rather than sharp edges. This curvature design maintains manufacturing simplicity while effectively preventing unintentional movement of the attachment, thereby ensuring consistent cutting height without complicating the attachment structure.
3Reliability
If the skin contact surface is made uneven to improve sliding properties, then the sliding properties are improved, but the smoothness of skin contact deteriorates
Solution Approach 1:
The skin contact surface maintains overall smoothness for comfortable skin contact while incorporating localized uneven parts (protrusions and recesses) that provide enhanced sliding properties. The uneven parts are distributed locally rather than across the entire surface, allowing the majority of the surface to remain smooth for comfortability.
Solution Approach 2:
The uneven parts feature rounded contours with smooth transitions between protrusions and recesses. This curvature design prevents sharp edges that would compromise skin contact comfort, while still providing sufficient surface variation to enhance sliding properties through controlled interlocking with the skin.
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 enhanced sliding properties of the skin contact surface result in more reliable and uniform hair cuts by preventing unintentional movement of the attachment, maintaining a consistent cutting height.
Implementation Method 1
the skin contact surface is provided with an uneven part... capable of further improving the sliding properties of the skin contact surface on the skin
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
An attachment for a cutting device further improves the sliding properties of the skin contact surface on the skin. Such a cutting device to which the attachment is also included in the present disclosure. The attachment (3) according to the present disclosure includes a base, a comb part (40) with which the base is provided and which protrudes in second directions intersecting first directions, and a pair of sandwiching walls (70) with which the base is provided and which sandwich the cutting device (1) from both sides in third directions intersecting the first directions and the second directions. Here, the comb part (40) includes a facing surface (41) positioned on one side in the first directions to face a blade part (231) and a skin contact surface (42) positioned on the other side in the first directions to come into contact with skin. The skin contact surface (42) is provided with an uneven part.