Top-Loading Rolled Product Dispenser With Telescoping Axle
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Solution Overview
Problem
Existing devices for dispensing rolled products like toilet paper from the top are not straightforward, often requiring removal of the center tube, which is inconvenient.
Innovation Solution
A dispenser design featuring a casing with fastening means and guides that allow a telescoping axle to be easily inserted and rotated, enabling top-unloading of rolled products without removing the center tube, with optional features like fragrance and adhesive components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional dispenser design is used, then the structure is simple, but the operation becomes difficult requiring removal of the center tube
Solution Approach 1:
The dispenser is divided into distinct functional components: a removable center tube, a casing with opening, and an axle mechanism. This segmentation allows the center tube to be easily removed and replaced, simplifying the dispensing operation while maintaining overall device simplicity.
Solution Approach 2:
The axle is designed to be rotatable within the casing, enabling dynamic operation. The axle can rotate to dispense the rolled product (toilet paper) from the top opening, providing ease of operation without requiring complex mechanisms. The rotational capability is achieved through simple bearing surfaces and guide structures.
2Ease of operation
If the axle is made telescoping with spring, then the ease of operation improves, but the device complexity increases
Solution Approach 1:
The telescoping axle with spring is pre-assembled as an integrated unit before insertion into the dispenser. The spring is already positioned within the telescoping sections, and the fastening means are pre-configured. This preliminary assembly simplifies the insertion and removal process, as the user only needs to insert or remove the complete axle assembly without dealing with separate spring mechanisms.
Solution Approach 2:
The spring-loaded telescoping axle is designed to be self-contained and self-operating. The spring automatically provides the force needed for telescoping extension and retraction, eliminating the need for external actuators or complex control mechanisms. The axle self-adjusts its length and positioning through the spring mechanism, reducing overall device complexity.
3Reliability
If guides are added to the casing, then the reliability of axle positioning improves, but the manufacturing complexity increases
Solution Approach 1:
The guides are implemented as thin, flexible guide structures integrated into the casing walls rather than rigid, separate components. These guides can be molded directly into the casing as thin features or attached as flexible strips, providing reliable axle positioning while minimizing additional manufacturing steps. The guides conform to the axle's movement path without requiring precise, complex machining.
Data Source
AI summary
There is provided herein a dispenser for a rolled product which has a center bore, comprising: a casing having walls and having a top with an opening; a first fastening means disposed on a first inner wall of said casing; a second fastening means disposed on a second inner wall of said casing, wherein said first inner wall is opposite said second inner wall, and said first fastening means is opposite said second fastening means; and an axle fastened to said first and second fastening means, wherein said axle can rotate when fastened.