Rolled Material Dispenser With Spring-Biased Ball Retention
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Solution Overview
Problem
Existing rolled material dispensing systems are prone to tampering, have loose components that can be misused, and require complex loading mechanisms, posing safety and maintenance challenges, especially in secure environments like prisons and hospitals.
Innovation Solution
A rolled material dispensing apparatus featuring a housing with a frame, retention structures, ball bearings, biasing components, and a mounting structure that securely encloses and retains the material roll, allowing easy loading and dispensing without external manipulation, and is designed for secure and ergonomic use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing rolled material dispensing systems are used, then dispensing function is provided, but the systems are prone to tampering and have loose components that can be misused
Solution Approach 1:
The ball bearings are integrated into the frame structure with biasing components that maintain constant pressure contact. This merging of components eliminates loose parts while maintaining dispensing function, directly addressing the tamper resistance and misuse prevention requirements.
Solution Approach 2:
The biasing components act as intermediaries between the ball bearings and frame, providing controlled pressure to maintain ball bearing contact with the roll. This intermediary mechanism ensures reliable engagement without requiring loose adjustment components, enhancing security against tampering.
2Ease of operation
If existing dispensing systems are used, then material dispensing is achieved, but complex loading mechanisms are required
Solution Approach 1:
The loading mechanism is simplified by extracting unnecessary complex components. The ball bearings are positioned to be directly accessible through openings in the frame, allowing the roll to be loaded by simply placing it against the ball bearings, which are spring-loaded to engage automatically. This eliminates complex loading mechanisms while maintaining ease of operation.
3Reliability
If ball bearings are made larger for better retention, then retention effectiveness improves, but the ball bearings cannot move through the apertures for loading
Solution Approach 1:
The ball bearings are made larger than the aperture diameter for better retention, but the biasing components provide dynamic force that allows the ball bearings to move outward through the apertures during loading. The spring pressure enables the system to transition between retention mode (ball bearings blocking apertures) and loading mode (ball bearings pushed through apertures), resolving the contradiction between retention effectiveness and loading accessibility.
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
The apparatus provides secure, tamper-resistant, and easy-to-load dispensing of rolled materials, reducing the risk of misuse and enhancing maintenance accessibility, while eliminating loose parts that could be hazardous in sensitive settings.
Implementation Method 1
The biasing components bias the ball bearings against the sides of the frame so that the ball bearings at least partially extend through the apertures
Data Source
AI summary
A rolled material dispensing apparatus including a housing, a frame, first and second retention structure, first and second ball bearings, first and second biasing components, and mounting structure. Sides of the frame form an open-front dispensing chamber and include first and second apertures for at least partially receiving the ball bearings therethrough. The retention structure retain the ball bearings and biasing components therein. The ball bearings may be urged out of the way of the roll of material when the roll is loaded into the apparatus. The biasing components urge the ball bearings at least partially through the apertures into ends of the roll when the roll is in a loaded position for retaining the roll in the dispensing chamber.