Resin Comb Attachment Structure to Suppress Warping in Cutting Devices
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Solution Overview
Problem
Existing cutting device attachments made of resin are prone to warping, affecting the uniformity of hair cutting length.
Innovation Solution
A cutting device attachment featuring a base made of resin with a comb part and sandwiching walls that include a comb part projecting in a specific direction, along with a base main body and intersection wall, to stabilize the attachment and prevent warping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a bottom wall (base part) is formed using resin, then the attachment can be manufactured with ease, but the bottom wall may be warped during resin molding to increase or decrease the distance between the combs
Solution Approach 1:
The base is divided into a base main body and multiple sandwiching walls that extend from it. This segmentation allows the sandwiching walls to act as independent structural elements that constrain warping while maintaining the overall integrity of the resin base, resolving the contradiction between ease of manufacture and manufacturing precision
Solution Approach 2:
The design changes the physical parameters of the base by adding sandwiching walls with specific geometric configurations. These walls alter the stiffness and thermal distribution parameters of the resin base during molding, preventing warping-induced dimensional changes in the comb spacing while maintaining manufacturability
2Ease of manufacture
If the bottom wall (base part) is made of resin, then the attachment can be easily manufactured, but warping during molding affects the reliability of the cutting device
Solution Approach 1:
By segmenting the base into a base main body and multiple sandwiching walls, the design maintains the ease of resin manufacturing while the distributed wall structure provides multiple constraint points that reliably prevent warping, ensuring consistent comb spacing and cutting performance
Solution Approach 2:
The design creates a composite structure within the resin base by forming sandwiching walls that provide enhanced structural stability. This composite approach combines the manufacturing advantages of resin with the dimensional stability of reinforced wall structures, improving reliability without sacrificing ease of manufacture
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
In an attachment for a cutting device, warping of a base made of resin is suppressed more reliably. A cutting device to which the attachment is also included in the present disclosure. The attachment (3) according to the present disclosure includes the base made of resin; a comb part (40) with which the base is provided and 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 plurality of combs (45) disposed in a state of being separated in the third directions. The base includes a base main body (31) extending in the second directions and an intersection wall (32) continuously formed from the base main body and extending in the first directions.