Cellular Shaver Handle Structure for Lower Material Use
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing shaver handles are inefficient in terms of material consumption and economy, requiring improvements to reduce raw material usage while maintaining mechanical properties.
Innovation Solution
A shaver handle with a cell structure formed by a space partitioning method, such as a Voronoi diagram, incorporating a grid shell structure that includes hollow cells, reducing material volume by up to 75% compared to conventional handles, and enhancing mechanical efficiency through a bending efficiency ratio of at least 1.30 × 10^-4 N.mm^-4.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If a compact solid handle structure is used, then mechanical strength and structural integrity are maintained, but material consumption increases significantly
Solution Approach 1:
The handle body incorporates a cell structure with hollow cells arranged in a grid pattern, creating a porous internal architecture. This cell structure reduces material consumption by 33-90% of the envelope volume while maintaining mechanical strength through the distributed hollow cell framework that provides structural support without requiring solid material throughout the entire handle volume.
Solution Approach 2:
The handle body is segmented into multiple hollow cells arranged in a grid pattern, dividing the solid structure into discrete cellular units. This segmentation allows the handle to maintain mechanical integrity through the distributed cell framework while significantly reducing overall material consumption compared to a solid compact handle.
2Quantity of substance
If material volume is reduced to save resources, then material economy improves, but mechanical efficiency may deteriorate
Solution Approach 1:
The invention changes the structural parameters of the handle by introducing a cell structure with specific geometric configurations. The hollow cells are arranged in a grid pattern with controlled dimensions and spacing, transforming the material distribution parameters to achieve both reduced material volume (33-90% empty volume ratio) and maintained mechanical efficiency through the optimized cellular framework.
Solution Approach 2:
The handle employs a composite structure combining solid material walls with hollow void spaces in a grid pattern. This composite arrangement of solid and empty phases creates a cellular material structure that provides mechanical efficiency comparable to solid material while using significantly less quantity of substance, achieving both material economy and mechanical performance.
3Loss of substance
If a cell structure with high empty volume ratio is used, then material economy improves, but structural complexity increases
Solution Approach 1:
The handle body is divided into multiple hollow cells arranged in a regular grid pattern, creating a segmented cellular structure. This segmentation approach simplifies the manufacturing process compared to creating irregular porous structures, as the grid-based cell arrangement can be more easily formed through molding or additive manufacturing techniques while achieving high empty volume ratios of 33-90%.
Solution Approach 2:
The cell structure utilizes curved surfaces and rounded cell geometries rather than sharp angular transitions. This curvature approach simplifies the manufacturing process by reducing stress concentration points and facilitating easier molding or additive manufacturing, while the smooth cellular geometry maintains structural integrity and reduces material usage through the hollow cell configuration.
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
A handle (2) for a wet shaver, having a handle body (7) adapted to be held by a user and a head supporting portion (8) adapted to support a shaver head (3). The handle body has a cell structure formed by juxtaposed hollow cells (16) separated by solid walls (15).