Carpet pile seam roller
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Solution Overview
Problem
The use of a single hand to operate a carpet pile seam roller leads to fatigue and limits the downward force applied, thereby reducing the adhesion between the carpet and the adhesive seam tape.
Innovation Solution
A carpet pile seam roller design that allows for simultaneous two-handed operation, enabling greater downward and rolling forces to be applied, with a handle configuration that facilitates this dual-directional force application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a single hand is used to operate the seam roller, then the device complexity is reduced, but the downward force applied to the carpet is limited and installer fatigue increases
Solution Approach 1:
The handle is extended in a direction generally perpendicular to the rolling direction of the roller, creating a second dimension for force application. This allows the installer to apply downward force through the extended handle while simultaneously rolling the roller back and forth, effectively converting a single-degree-of-freedom operation into a two-degree-of-freedom operation that increases both force application capability and operational comfort
2Strength
If a single hand is used to operate the seam roller, then the ease of operation is maintained, but the adhesion between carpet and adhesive tape is reduced
Solution Approach 1:
By extending the handle perpendicular to the rolling direction, the invention enables the installer to apply vertical downward force through the handle while rolling. This additional dimensional capability directly increases the contact pressure between the carpet backing and adhesive tape, thereby strengthening the adhesion bond without compromising operational ease
3Force
If the handle is extended perpendicular to the rolling direction, then two-handed operation is enabled, but the device complexity increases
Solution Approach 1:
The handle extension in a direction perpendicular to the rolling direction creates a simple yet effective geometric modification that enables two-handed operation. This dimensional change allows simultaneous application of rolling force and downward pressure without requiring complex mechanisms, linkages, or additional components, thus minimizing the increase in device complexity while maximizing force application capability
Data Source
AI summary
A carpet pile seam roller includes handle and a roller, the roller attached to the handle. The handle includes a first recess adapted to receive at least a first portion of a first hand of a user, and a second recess adapted to receive at least a first portion of a second hand of a user.