Rolled web material dispenser material lockout systems

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Solution Overview

Problem

Conventional rolled web material dispensers lack the ability to selectively dispense only authorized types or styles of web material, leading to operational inefficiencies and improper use of unauthorized rolls, which can be attributed to manufacturing deviations or unsuitable web materials, necessitating a mechanical lockout system to prevent unauthorized use.

Innovation Solution

A web material roll lockout system featuring a core insert with registration elements and an adapter that forms a linkage with corresponding registration elements on the dispenser, ensuring only authorized rolls can be properly positioned and supported for dispensing, using a combination of projections, slots, and a rotatable disc to secure the core insert and adapter.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional rolled web material dispensers are used without lockout features, then the dispensers can accept any roll of web material, but unauthorized or incompatible rolls may be dispensed leading to operational inefficiencies and improper use

Engineering Contradiction:
Improveacceptance of various web material rollsVSAvoidproper dispensing operation
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

A core insert is introduced as an intermediary component between the web material roll and the dispenser spindle. The core insert includes registration elements that mediate the interface between the roll and dispenser, ensuring only authorized rolls are properly positioned and dispensed while maintaining compatibility with the dispenser mechanism.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If a mechanical lockout system with registration elements is implemented, then unauthorized rolls are prevented from being dispensed, but the device complexity increases

Engineering Contradiction:
Improveprevention of unauthorized roll dispensingVSAvoidstructure of dispenser assembly
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The core insert is designed to nest within the hollow core of the web material roll, and the registration elements are nested within the compact space of the core insert itself. This nesting approach allows the lockout mechanism to be integrated into the existing roll structure without requiring significant additional space or complex external mechanisms.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Manufacturing precision

If registration elements are added to ensure proper roll positioning, then dispensing precision is improved, but the manufacturing cost increases

Engineering Contradiction:
Improveroll positioning accuracyVSAvoidproduction cost of dispenser
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

Rather than making the entire core insert or dispenser complex, registration elements are added only at the specific locations where positioning is needed. The core insert maintains a simple overall structure with localized features (protrusions, recesses, or indexed positions) that provide precise registration without requiring complex manufacturing throughout the entire component.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS11083348B2Rolled web material dispenser material lockout systems
Publication Date: 2021.08.10 SAN JAMAR INC
  • US11083348B2 patent drawing
  • US11083348B2 patent drawing
  • US11083348B2 patent drawing

AI summary

A lockout system that is configured to limit use of a rolled web material dispenser assembly to dispense only authorized rolls of web material. The lockout system includes respective first and second mating registration elements that removeably cooperate with one another and provide a rotational cooperation therebetween when engaged with one another. One of the registration elements is non-removeably associated with each authorized roll of web material and the mating registration element is associated with the rolled web material dispenser assembly. The first registration element is supported by the bore of discrete authorized rolls of web material. The corresponding and mating second registration element is supported by the roll dispenser. Mating of the first and second registration elements provides a rotatable linkage that facilitates rotation of the roll relative to the dispenser assembly during the dispense activity.