Electric Hair Cutter Fixed Blade Mounting Frame With Elastic Gap Compensation
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Solution Overview
Problem
Conventional electric hair cutter designs suffer from dimensional tolerance issues between the guide rail and the fixed blade mounting frame, leading to shaking, loosening, tightening, and noise during operation, affecting the cutter's stability and performance.
Innovation Solution
An anti-loose mounting structure is implemented by incorporating an elastic member, such as an arched elastic sheet, between the fixed blade mounting frame and the guide rail, applying an elastic force perpendicular to the sliding direction to ensure tight attachment and compensate for production tolerances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If dimensional tolerance is not controlled during production, then manufacturing cost is reduced, but gaps are generated between the fixed blade mounting frame and guide rail causing shaking and loosening
Solution Approach 1:
An elastic member is introduced as an intermediary component between the fixed blade mounting frame and the guide rail. This elastic member compensates for dimensional tolerance gaps without requiring high manufacturing precision, thereby resolving the contradiction between manufacturing precision and device complexity.
Solution Approach 2:
The elastic member changes its physical state (deformation) in response to dimensional variations, allowing the structure to adapt to tolerance gaps dynamically. This parameter change approach eliminates the need for tight manufacturing tolerances while maintaining structural stability.
2Stability of the object's composition
If elastic member is added to eliminate gaps, then stability of fixed blade mounting frame is improved, but device complexity increases
Solution Approach 1:
The elastic member serves as a simple intermediary element that provides stability without introducing complex mechanisms. It fills the gap between the fixed blade mounting frame and guide rail, preventing shaking and loosening while adding minimal structural complexity.
Solution Approach 2:
The elastic member is designed as a flexible component that can deform to accommodate dimensional variations. This flexible approach provides effective stabilization while keeping the structure simple and avoiding rigid complex assemblies.
3Object-affected harmful factors
If gap between fixed blade mounting frame and guide rail is eliminated, then noise during operation is reduced, but manufacturing cost increases due to tighter tolerances
Solution Approach 1:
The elastic member acts as a mediator that eliminates gaps causing noise without requiring tight manufacturing tolerances. This allows standard manufacturing processes to be used while still achieving noise reduction, thus resolving the contradiction between noise control and manufacturing cost.
Solution Approach 2:
The elastic member converts the potential harm of dimensional tolerance gaps (which cause noise) into a beneficial feature by using the elasticity to maintain contact and eliminate gaps. This approach controls noise while avoiding the need for expensive tight-tolerance manufacturing.
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 elastic member stabilizes the fixed blade mounting frame, preventing gaps and noise, ensuring stable operation of the cutter head assembly and enhancing the overall performance of the electric hair cutter.
Implementation Method 1
an elastic member is arranged between the guide rail and the fixed blade mounting frame, and the elastic member always imposes an elastic force on the fixed blade mounting frame. The direction of the elastic force is perpendicular to the sliding direction of the fixed blade mounting frame along the guide rail, so that the fixed blade mounting frame is always tightly attached to an inner side wall of the guide rail
Data Source
AI summary
An anti-loose mounting structure of an electric hair cutter fixed blade mounting frame comprising a body and a cutter head assembly; the cutter head assembly is arranged at a front end of the body, and the cutter head assembly further comprises a fixed blade mounting frame and a fixed blade; the fixed blade is fixedly connected to the fixed blade mounting frame, the front end of the body is provided with a guide rail, and the fixed blade mounting frame is slidably connected to the guide rail; an elastic member is arranged between the guide rail and the fixed blade mounting frame, and the fixed blade mounting frame is always tightly attached to an inner side wall of the guide rail; the fixed blade mounting frame operates stably, making the entire cutter head assembly operate smoothly such that the operating performance of the electric hair cutter is significantly enhanced.