Lockable Roller Assembly for Rolling and Brush-Like Liquid Application

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Solution Overview

Problem

Roller assemblies are not suitable for all forms and configurations of surfaces, necessitating the use of alternative means like brushes for applying liquids.

Innovation Solution

A lock assembly that allows the roller to be releasably locked relative to the frame, enabling it to be used like a brush by preventing rotation, thereby expanding the applicability of roller assemblies.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the roller is kept rotatable relative to the frame, then the roller assembly can effectively apply liquid to surfaces through rolling motion, but the roller assembly cannot be used on all forms and configurations of surfaces

Engineering Contradiction:

Improveapplicability to different surface formsVSAvoidfunctional flexibility

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The roller assembly incorporates a lockable mechanism that allows dynamic switching between two operational states: rotatable mode for conventional rolling application and locked mode for brush-like wiping application. This dynamic adaptability enables the same device to handle different surface forms and configurations, resolving the contradiction between maintaining rolling functionality and expanding versatility.

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If a lock assembly is added to prevent roller rotation, then the roller assembly can be used like a brush on various surfaces, but the device complexity increases

Engineering Contradiction:

Improvesurface compatibilityVSAvoidstructure complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The lock assembly is integrated with the existing roller assembly structure, combining the locking mechanism with the frame and roller support components. This merging approach adds the necessary locking functionality while minimizing overall structural complexity, as the lock assembly shares structural elements with the existing design rather than being a completely separate addition.

Inventive Principle:

Principle #5Merging (Combining)

3Adaptability or versatility

If the roller is locked in position, then the roller assembly can wipe liquid onto surfaces, but the roller cannot rotate to apply liquid through rolling motion

Engineering Contradiction:

Improveapplication method varietyVSAvoidliquid application efficiency

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The mechanism allows users to dynamically select between rolling application (rotatable mode) and wiping application (locked mode) based on the specific task requirements. This dynamic switching capability ensures that the most efficient application method can be chosen for each situation, maintaining productivity while expanding application versatility.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS12583012B2Locking assembly and roller assembly employing the same

Publication Date: 2026.03.24 WANIOWSKI KAMIL

AI summary

A lock assembly for a roller assembly is provided. The roller assembly has a frame with a support portion; and a roller rotatably mounted on the support portion of the frame. The lock assembly includes a lock member support; a lock member moveable relative to the lock member support between a first position and a second position; wherein when the lock assembly is employed with the roller assembly, with the lock member in the first position the roller is rotatable relative to the frame and with the lock member in the second position, the lock member engages with the roller to prevent rotation of the roller relative to the frame. A roller assembly having the lock assembly is also provided.