Flexible Sanding Pad with Grooves and Knobs for Complex Surfaces
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Solution Overview
Problem
Current sanding pads are rigid and unsuitable for surfaces with pronounced concavities and convexities, leading to inefficiencies and material waste, as they crack and deteriorate quickly when flexed, and existing solutions either sacrifice flexibility or do not adequately address these challenges.
Innovation Solution
A flexible sanding pad with a rubber layer and a perforated harmonic steel disc, featuring grooves and knobs for adjustable curvature and adhesion, along with a velcro disk for attaching abrasive discs, allowing for effective sanding of complex surfaces while minimizing material use and maintaining durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If rigid sanding pads are used, then structural robustness is improved, but flexibility and adaptability to complex surfaces deteriorate
Solution Approach 1:
The sanding pad uses a composite structure combining a flexible foam support layer with a fabric reinforcement layer impregnated with abrasive particles. This composite design provides both the flexibility needed for complex surfaces and the structural robustness for effective sanding, resolving the contradiction between rigidity and adaptability.
Solution Approach 2:
The pad employs a flexible foam support layer that can conform to complex surface geometries including concavities and convexities. This flexible base structure allows the pad to adapt to three-dimensional surfaces while maintaining sufficient structural integrity through the integrated fabric reinforcement layer.
2Adaptability or versatility
If flexible sanding pads are used, then adaptability to complex surfaces is improved, but durability and structural stability deteriorate
Solution Approach 1:
The combination of flexible foam support material with a woven fabric reinforcement layer creates a composite structure that maintains durability while providing flexibility. The fabric layer prevents the foam from cracking and deteriorating, extending the pad's service life while preserving its conformability to complex surfaces.
Solution Approach 2:
The pad structure is segmented into distinct functional layers: the flexible foam support layer provides adaptability, while the separate fabric reinforcement layer provides structural stability and durability. This segmentation allows each layer to perform its specific function optimally without compromising the other.
3Stability of the object's composition
If traditional plastic-filled pads are used, then structural stability is improved, but material waste and environmental impact worsen
Solution Approach 1:
The pad replaces traditional plastic-filled structures with a composite of foam support material and fabric reinforcement. This eliminates excessive plastic material while maintaining structural stability through the synergistic combination of materials, reducing material waste and environmental impact.
Solution Approach 2:
The foam support layer is a porous material that provides structural stability through its cellular structure rather than requiring solid plastic filling. This porous structure reduces material consumption while maintaining the necessary mechanical properties for durable sanding pad operation.
4Ease of operation
If manual sanding with abrasive papers is used, then accessibility to insidious points is improved, but time consumption and productivity worsen
Solution Approach 1:
The sanding pad is designed as a universal tool that combines the flexibility needed for manual accessibility to complex surfaces with the efficiency of a pre-formed, structured sanding surface. The pad can be used by hand to reach insidious points while providing consistent abrasive performance that reduces time consumption compared to loose abrasive papers.
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 flexible pad provides uniform machining on three-dimensional surfaces, reduces material waste, and extends the pad's lifespan by allowing for adjustable flexibility and adhesion, making it suitable for demanding bodywork tasks while minimizing environmental impact.
Implementation Method 1
A rubber layer is suitable to constitute the main structure of the present flexible pad
Implementation Method 2
at least one velcro disk is engaged with said rubber layer on its lower surface
Implementation Method 3
The flexible pad provides uniform machining on three-dimensional surfaces
Data Source
Figure 1~2
AI summary
Flexible sanding pad for sanding bodywork made by assembling a plurality of materials which create a layering suitable to give said pad both the rigidity necessary to support sanding and the flexibility necessary to facilitate the constant treatment of concave and convex surfaces of a generic bodywork; said flexible sanding pad comprising a plurality of knobs, installed on the upper surface, suitable to facilitate its grip by an operator, further conditioning its flexure; said flexure being further facilitated by a plurality of grooves, all longitudinally arranged, suitable to facilitate the grip of an operator by creating a softer and more flexible central area of said sanding pad; said flexible sanding pad being engaged, in its lower surface, with a velcro disk, for the purpose of applying common abrasive discs of different grits.