Spindle assembly for a web material dispenser, web material roll dispensing assembly and method for inserting a web material roll in a dispenser
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Solution Overview
Problem
Existing paper roll dispensers often cannot accommodate rolls with a central bushing, limiting their usability with certain types of paper rolls.
Innovation Solution
A spindle assembly comprising a bushing-engaging member and a spindle connection member, allowing the roll with a central bushing to be mounted and dispensed in dispensers not originally designed for such rolls, by engaging with the bushing and connecting to the roll's extremity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a bushing is provided in the cavity of the paper roll, then roll replacement is facilitated and improved, but the paper roll becomes unusable in certain types of paper roll dispensers
Solution Approach 1:
The patent introduces a bushing adapter as an intermediary component that fits between the existing bushing in the paper roll and the dispenser mechanism. This adapter has a configuration that accommodates the bushing while providing interface features compatible with various dispenser types, thereby enabling rolls with bushings to be used in dispensers not originally designed for them.
Solution Approach 2:
The bushing adapter is designed with universal compatibility features that allow it to interface with multiple types of dispenser mechanisms. By incorporating standardized interface elements and adaptable mounting options, the adapter enables a single roll design with a bushing to be used across different dispenser configurations, enhancing versatility.
2Adaptability or versatility
If a spindle assembly is designed to engage with the bushing, then rolls with bushings can be used in more dispenser types, but the device complexity increases
Solution Approach 1:
The spindle assembly is divided into separate modular components: a bushing adapter portion that interfaces with the roll bushing, and a spindle portion that interfaces with the dispenser. This segmentation allows each component to be optimized independently and simplifies the overall assembly process, reducing complexity while maintaining versatility.
Solution Approach 2:
The bushing adapter is designed to nest within or around the existing bushing structure of the paper roll, with the spindle assembly then nesting around the adapter. This nested configuration allows multiple functional elements to be integrated in a compact arrangement without significantly increasing the overall size or complexity of the assembly.
Data Source
AI summary
A spindle assembly for supporting a web material roll in a web material dispenser, the web material roll having first and second extremities and defining a central cavity provided with a bushing toward the first extremity. The spindle assembly includes a bushing-engaging member having: a first dispenser mounting portion mountable to a first side of the dispenser, and a bushing-engaging portion sized and configured to fit at least partially in the bushing; and a spindle connection member having: a second dispenser mounting portion mountable to a second side of the dispenser, and a connecting portion removably mountable to the bushing-engaging member; thereby allowing use of the roll with the bushing in the dispenser. Also, a roll dispensing assembly and a method for inserting a roll of web material in a dispenser.