Roller Holder with Tilting Pressure Medium for Secure Paper Tearing
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Solution Overview
Problem
Existing roll holders fail to ensure secure separation of paper sections, especially under high tensile forces, and often cause pressure points when fixing rolls of different lengths, leading to inefficient tearing and potential rotation during removal.
Innovation Solution
A roll holder design featuring a pressure medium that tilts during tearing, with a first leg extending along the receiving element and a second leg tilting about a section on the base, ensuring consistent pressure application and preventing roll rotation, along with a hollow-cylindrical receiving element and a handle that expands circumferentially to accommodate various roll lengths without direct pressure on the material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional pressure medium is used that acts directly on the roll, then pressure is applied to prevent rotation, but pressure points are created that affect ease of movement when tearing off
Solution Approach 1:
The patent introduces an intermediary mechanism (the tilting pressure medium with legs) that transfers the fixing function without direct contact between the pressure medium and the paper material. The first leg contacts the roll while the second leg pivots on the base, creating a leveraged tilting motion that applies pressure indirectly through the roll's surface rather than concentrating force on specific points of the paper
2Adaptability or versatility
If the pressure medium is fixed in position, then the structure is simple, but it cannot adapt to rolls of different lengths without creating pressure points
Solution Approach 1:
The pressure medium is designed with dynamic characteristics, allowing it to tilt and adjust its position based on the roll's length and position. The pivoting second leg enables the pressure medium to adapt its angle and contact points automatically, providing versatility for different roll sizes without requiring complex adjustment mechanisms or multiple components
3Reliability
If a pressure medium that tilts during tearing is used, then secure separation is enabled, but the mechanism becomes more complex with additional legs and pivoting points
Solution Approach 1:
The pressure medium is segmented into distinct functional legs: a first leg for contacting and pressing the roll, and a second leg for pivoting on the base. This segmentation allows each component to perform its specific function efficiently while maintaining overall structural simplicity. The division into legs enables the tilting motion without requiring complex mechanisms
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
Enables secure and efficient separation of paper sections without rotation, accommodating rolls of different lengths by distributing pressure evenly and preventing uncontrolled rotation during removal.
Implementation Method 1
a pressure medium that rests on the outside of the roll and which is guided in the base element in the direction of the roll and is subjected to a force
Implementation Method 2
The pressure medium can be adjusted in the direction of the roll under spring force
Data Source
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AI summary
The invention relates to a roller holder (150) comprising a base (12) with a hollow cylindrical receiving element (14) extending from it and receiving the roller (54), as well as a pressure means (200) located on the outside of the roller, which is designed such that it is tilted towards the roller (54) when a section of the roller (54) is torn off.