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Overwood Measurement Gage

IP.com Disclosure Number: IPCOM000125730D
Publication Date: 2005-Jun-15
Document File: 1 page(s) / 22K

Publishing Venue

The IP.com Prior Art Database

Abstract

The Overwood Measurement Gage is a device to determine the amount of overwood (ledging at joints) present in wood flooring planks. This quality characteristic is critical on square edge products where customers are looking for a smooth and formal looking flooring surface without gaps caused by beveled edges.

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Overwood Measurement Device

Description:

Measurement device to determine the amount of overwood (ledging at joints) present in wood flooring planks. This quality characteristic is critical on square edge products where customers are looking for a smooth and formal looking flooring surface without gaps caused by beveled edges.

Concept Origination:

Existing devices to measure overwood were unable to pass Measurement System Accuracy studies conducted in Center, TX. A solution was required to enable Armstrong to improve the quality of its Engineered wood products and to provide Quality Assurance tools to ensure improvements were sustained.

Features which make it unique:

Passes Measurement System Accuracy Studies.

Resolution allows differentiation between joints of differing quality.

Forward Facing Design for operator convenience.

Filters misreads caused by springwood / summerwood grain patterns.

Base shape and cutouts to enable proper alignment of device to wood plank joints.

Lightweight construction.

Overwood measurement devices marked HG15-0 and HG16-0, underwent Gauge R&R studies at the Center, TX plant. The designs were the first to successfully achieve:

HG15-0                           HG16-0

Total R&R of <= 20%                  16%                                10%

% Tolerance of < 15%                 14%                                13%

Operator Anova P > 0.05   0.97                                          0.39

Distinct Ca...