Sanding Block Holder With Polyfoam Handle

Solution Overview

Problem

Existing sanding block holders are made of relatively rigid materials, leading to user fatigue during extended use, particularly for women engaging in DIY tasks, and do not effectively address the need for ergonomic comfort and consistent sanding performance.

Innovation Solution

A holder with a rigid base and an ergonomically designed polyfoam handle that friction-fits the sanding block, providing enhanced grip and comfort through a shape that conforms to the user's hand, reducing fatigue and ensuring consistent sanding.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the holder is made of rigid material, then the holding effectiveness is improved, but the user comfort deteriorates

Engineering Contradiction:

Improveholding effectivenessVSAvoiduser comfort

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The holder is divided into two distinct parts: a rigid base for holding effectiveness and a separate polyfoam handle for comfort. This segmentation allows each part to fulfill its specific function without compromise.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The holder combines two different materials - rigid material (metal or plastic) for the base and polyfoam material for the handle. This composite structure resolves the contradiction by providing both rigidity where needed and comfort where required.

Inventive Principle:

Principle #40Composite materials

2Stability of the object's composition

If the holder is made of rigid material, then the structural stability is improved, but the ease of operation deteriorates

Engineering Contradiction:

Improvestructural stabilityVSAvoidease of use

Core Design Contradiction:

Stability of the object's compositionVSEase of operation

Solution Approach 1:

The holder is divided into two distinct parts: a rigid base for holding effectiveness and a separate polyfoam handle for comfort. This segmentation allows each part to fulfill its specific function without compromise.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The holder combines two different materials - rigid material (metal or plastic) for the base and polyfoam material for the handle. This composite structure resolves the contradiction by providing both rigidity where needed and comfort where required.

Inventive Principle:

Principle #40Composite materials

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 ergonomic design reduces user fatigue and enhances the sanding process by providing a comfortable grip and consistent sanding performance, improving ease of use and effectiveness.

Implementation Method 1

The receiving surface and the block have shapes that cooperate with each other to provide friction forces therebetween

Methodology Applied

Scientific EffectFriction: Friction

Data Source

PatentUS7641539B2Holder for sanding block

Publication Date: 2010.01.05 RUST OLEUM CORPORATION

AI summary

A holder for releasably retaining an abrasive block includes a base having a bottom surface and a wall extending outward therefrom which together define a abrasive block receiving surface to friction fit receive the abrasive block, and a polyfoam handle connected to the base and which extends upward from a top surface of the base.