Paper Roll Dispenser Dual-Opening Threading for Faster Refilling
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Solution Overview
Problem
Existing dispensers for absorbent paper rolls face difficulties in easy refilling due to the restricted size of the dispensing opening, making the threading process cumbersome and time-consuming, especially when transitioning from one roll to another.
Innovation Solution
The dispenser features a dual-threading opening system where the first and second threading openings are partly overlapping to form the dispensing opening, allowing for two-step threading, with the first opening being larger for easier access and the second being narrower to guide the tail through, facilitating a smooth transition from one roll to another.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the dispensing opening has a restricted open area to protect the roll and enable automatic sheet-by-sheet dispensing, then the roll is protected from soiling and water splashing, but the threading process becomes difficult and time-consuming
Solution Approach 1:
The dispensing opening is segmented into two separate openings: a first dispensing opening in the inner lid and a second dispensing opening in the outer lid. This segmentation allows each opening to serve a specific function - the first opening facilitates easy threading while the second opening maintains roll protection, thereby resolving the contradiction between threading ease and roll protection.
2Shape
If the dispensing opening has a restricted open area to maintain a closed dispenser form, then the dispenser remains aesthetically pleasing and compact, but the refilling process becomes complex and time-consuming
Solution Approach 1:
The dispensing function is segmented across two separate openings in the inner and outer lids. The first opening in the inner lid provides easy access for threading during refilling, while the second opening in the outer lid maintains the aesthetic closed form. This segmentation allows the dispenser to maintain its compact shape while significantly reducing refilling time and complexity.
3Ease of operation
If the dispensing opening is made larger to facilitate threading, then the threading process becomes easier, but the roll becomes exposed to soiling and water splashing
Solution Approach 1:
The threading function and protection function are segmented into two separate openings. The first dispensing opening in the inner lid is larger and facilitates easy threading, while the second dispensing opening in the outer lid is smaller and maintains roll protection. This segmentation allows the system to achieve both threading ease and roll protection simultaneously.
4Device complexity
If a single small dispensing opening is used to maintain a closed dispenser, then the dispenser remains compact and protective, but the threading process requires twisting and manipulation of the web material
Solution Approach 1:
The dispensing opening is divided into two separate openings located in different lids. The first opening in the inner lid provides a larger, more accessible path for threading the web material without twisting or manipulation. The second opening in the outer lid maintains the closed structural integrity. This segmentation resolves the contradiction between maintaining a closed structure and facilitating easy threading operations.
Data Source
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AI summary
A dispenser (1) for a roll (2) of rolled up absorbent paper web material, said dispenser (1), in a closed state, comprising an outer casing (10) enclosing a roll compartment (20) for housing a roll (2), and a dispensing opening (42) extending from the roll compartment (20) to the outside of said outer casing (10) along a dispensing axis (X) of the dispenser (1), said outer casing (10) comprising an outer lid (12) assuming a closed position when the dispenser is in said closed state. Said dispenser (1) further comprising an inner lid (30), which, in said closed state of the dispenser, is arranged between said roll compartment (20) and said outer lid (12), wherein said inner lid (30) defines a first threading opening (32) through said inner lid (30) along said dispensing axis (X), said first threading opening (32) comprising a first dispensing opening portion (42a); and said outer lid (12) defines a second threading opening (16) through said outer lid (12) along said dispensing axis (X), said second threading opening (16) comprising a second dispensing opening portion (42b); and, when the dispenser (1) is in a closed state, said first threading opening (32) and said second threading opening (16) are arranged in a partly overlapping relationship so as to form said dispensing opening (42) by said first dispensing opening portion (42a) and said second dispensing opening portion (42b).