Composite Sanding Pad With Foam Layer And Hook Loop Attachment

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Solution Overview

Problem

Existing sanding tools face challenges with durable and effective sandpaper holding mechanisms, as well as inadequate support structures that fail to securely attach and detach sandpaper, leading to inefficiencies in the sanding process.

Innovation Solution

A composite support structure featuring a rigid member bonded with a polyfoam layer and integrated hook and loop portions, allowing for secure attachment of sandpaper and interchangeable handle configurations, enabling both hand and pole sanding applications.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If hook and loop members are glued to a rigid support structure, then sandpaper attachment is enabled, but the connection fails at the rigid support surface rendering the device useless

Engineering Contradiction:
Improvesandpaper attachment reliabilityVSAvoidconnection strength at rigid support surface
Core Design Contradiction:
ReliabilityVSStrength

Solution Approach 1:

The patent introduces a foam layer as an intermediary between the rigid support structure and the hook and loop members. This foam layer serves as a mediator that enables the hook and loop members to be securely attached to the rigid surface, resolving the failure issue where direct gluing of hook and loop members to rigid structures was ineffective.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent employs a composite structure combining rigid support material with a foam layer. This composite approach allows the rigid structure to provide structural integrity while the foam layer provides the necessary surface properties for reliable hook and loop member attachment, solving the contradiction between rigidity and attachment reliability.

Inventive Principle:
Principle #40Composite materials

2Reliability

If wire clips or clamping mechanisms are used to retain sandpaper, then sandpaper holding is achieved, but the sanding process becomes inefficient

Engineering Contradiction:
Improvesandpaper holding capabilityVSAvoidsanding process efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The hook and loop members are designed to automatically engage and disengage from sandpaper without requiring manual manipulation of clips or clamping mechanisms. This self-service mechanism allows for rapid attachment and removal of sandpaper, significantly improving the efficiency of the sanding process while maintaining reliable sandpaper holding.

Inventive Principle:
Principle #25Self-service

3Device complexity

If a single rigid support structure is used, then structural simplicity is maintained, but adaptability for different sanding applications is limited

Engineering Contradiction:
Improvesupport structure simplicityVSAvoidsanding application adaptability
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent designs a universal support structure with a standardized foam layer and hook and loop member configuration that can accommodate various sanding applications. The structure maintains simplicity while achieving multi-functionality through the versatile attachment mechanism that works with different sandpaper types and configurations, enabling adaptability across hand sanding and pole sanding applications.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 solution provides a durable and versatile sanding tool with improved sandpaper attachment and detachment, enhancing the sanding process by allowing for easy handling and conversion between hand and pole sanding modes.

Implementation Method 1

a polyfoam layer having a front surface and a back surface, wherein the back surface is bonded to the front surface of the rigid member

Methodology Applied
Scientific EffectAdhesive bonding: Adhesive

Implementation Method 2

a hook and loop portion can be integrally formed into the front surface of the polyfoam as part of the composite support structure thereby enabling a hook/loop sandpaper to be attached thereto

Methodology Applied
Scientific EffectHook and loop mechanism: Velcro

Data Source

PatentUS7396276B2Composite support structure for use in sanding and sanders formed therefom
Publication Date: 2008.07.08 RUST OLEUM CORPORATION
  • US7396276B2 patent drawing
  • US7396276B2 patent drawing
  • US7396276B2 patent drawing

AI summary

A composite support structure for use in sanding includes a rigid member having a front surface and a back surface for connection to a handle, and a polyfoam layer having a front surface and a back surface, wherein the back surface of the polyfoam is bonded to the front surface of the rigid member which when bonded forms a suitable composite support structure for removably connecting sandpaper thereto. A method of forming the same is provided.