Resin Cutting Attachment Structure to Suppress Comb Warping
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Solution Overview
Problem
Conventional cutting device attachments made of resin are prone to warping, affecting the uniformity of hair cutting length.
Innovation Solution
The attachment features a base made of resin with a comb part and sandwiching walls that stabilize the base, preventing warping by ensuring consistent spacing between combs and restricting movement in specific directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the base is made of resin for ease of manufacture, then manufacturing cost is reduced, but the base may warp during molding affecting comb spacing precision
Solution Approach 1:
The base is segmented into multiple functional parts: a base main body, multiple comb parts, sandwiching walls, and reinforcement walls. This segmentation allows each part to be optimized independently - the base main body provides structural support while comb parts maintain precise spacing, resolving the contradiction between ease of manufacture and precision by distributing functional requirements across separate elements
Solution Approach 2:
Reinforcement walls are added in the third direction (intersecting both the first direction of comb projection and second direction of sandwiching) to suppress warping. This dimensional approach adds structural stability without complicating the basic resin molding process, maintaining ease of manufacture while improving precision
2Adaptability or versatility
If multiple combs are disposed separately in the third direction to enable versatile cutting, then adaptability is improved, but the base structure becomes more complex increasing warping risk
Solution Approach 1:
Multiple comb parts are merged into a single integrated base structure rather than separate components. The combs are disposed in the third direction on the same base main body, providing cutting versatility while maintaining a unified structure that is easier to manufacture and less prone to warping than multiple separate pieces
Solution Approach 2:
The base structure serves multiple functions simultaneously: it supports various comb arrangements for different cutting styles, provides structural stability through sandwiching walls, and maintains precision through reinforcement walls. This multi-functionality achieves versatility without proportionally increasing complexity
3Ease of manufacture
If the bottom wall is formed using resin molding to reduce cost, then manufacturing cost is reduced, but warping occurs during molding affecting the uniformity of hair cutting length
Solution Approach 1:
Reinforcement walls are incorporated into the resin base structure before molding to prevent warping. These walls act as preemptive countermeasures that maintain comb spacing precision throughout the molding process and during use, ensuring reliable hair cutting uniformity while keeping the base made of cost-effective resin material
Solution Approach 2:
The base structure combines resin material with integrated reinforcement walls that provide enhanced structural stability. This composite approach maintains the cost benefits of resin molding while the reinforcement elements prevent warping, ensuring both manufacturing economy and cutting reliability
Data Source
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 according to the present disclosure includes the base made of resin; a comb part with which the base is provided and protrudes in second directions intersecting first directions, and a pair of sandwiching walls with which the base is provided and which sandwich the cutting device from both sides in third directions intersecting the first directions and the second directions. Here, the comb part includes a plurality of combs disposed in a state of being separated in the third directions. The base includes a base main body extending in the second directions and an intersection wall continuously formed from the base main body and extending in the first directions.