Pinch Roller Assembly With Grooved Clips for Wet Sheet Dispensing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing sheet product dispensers face issues when water is present, causing the sheet product to adhere to or wrap around the pinch roller, impeding proper dispensing.
Innovation Solution
A pinch roller assembly with a roller body and multiple clips, where the clips are rotatably associated with the roller body and designed to prevent adherence by remaining stationary against the dispenser, reducing the likelihood of the sheet product wrapping around the roller as it rotates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If water is present in the dispenser, then the sheet product may adhere to the pinch roller, but the dispenser can still dispense sheet product
Solution Approach 1:
The roller body surface is segmented into multiple grooves that divide the contact area between the sheet product and roller. This segmentation prevents the sheet product from adhering continuously to the roller surface, allowing it to be pinched and dispensed even when wet
Solution Approach 2:
The roller body has different surface properties in different locations - the grooves create regions of reduced contact and potential water drainage, while the raised portions maintain sufficient friction for gripping the sheet product
2Productivity
If the pinch roller rotates to dispense sheet product, then dispensing function is achieved, but the sheet product may wrap around the pinch roller
Solution Approach 1:
The grooves on the roller body segment the contact interface, creating discrete pinching points rather than continuous contact. This allows the sheet product to be gripped and released in controlled segments, preventing it from wrapping around the rotating roller
Solution Approach 2:
The grooves act as intermediaries between the roller surface and the sheet product, providing pathways for water drainage and reducing the adhesive forces that would otherwise cause the sheet product to wrap around the roller during rotation
Data Source
AI summary
A pinch roller assembly for a sheet product dispenser includes a roller body and a plurality of clips. The roller body includes a plurality of grooves. The roller body is rotatably associated with the plurality of clips, each clip being disposed in one of the plurality of grooves.