Dispenser for dispensing web material from a roll
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Solution Overview
Problem
Existing dispensers for tissue paper rolls often face issues with incorrect loading orientation and type, leading to reduced user-friendliness and increased complexity for service personnel during the loading process.
Innovation Solution
A dispenser with a movable spindle and a deflecting member that provides feedback on correct roll positioning, using a resilient member to ensure the spindle is correctly aligned and loaded, preventing the front cover from closing if the roll is not properly positioned.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If service personnel manually load rolls without guidance, then loading speed is improved, but loading correctness deteriorates
Solution Approach 1:
The deflecting member provides immediate tactile feedback to service personnel during the loading process. When a roll is incorrectly oriented or positioned, the deflecting member prevents the spindle from reaching its final position, giving instant feedback that the loading is incorrect. This allows service personnel to quickly correct the loading without needing to stop and check, maintaining high loading speed while ensuring correctness.
Solution Approach 2:
The dispenser performs self-checking of the loaded roll through the deflecting member mechanism. The system automatically detects incorrect loading through the interaction between the roll and deflecting member, eliminating the need for manual verification by service personnel. This self-service approach maintains productivity while ensuring loading correctness.
2Manufacturing precision
If the deflecting member is positioned to contact the roll, then loading correctness is improved, but device complexity increases
Solution Approach 1:
The feedback function is extracted from a complex electronic sensing and control system and implemented through a simple mechanical deflecting member. This extraction reduces device complexity while maintaining loading correctness, as the mechanical interaction alone provides sufficient feedback without requiring additional sensors, processors, or control circuits.
Solution Approach 2:
The deflecting member acts as a simple mechanical intermediary between the roll and the spindle positioning mechanism. Instead of directly complex positioning systems, the deflecting member mediates the interaction, providing a straightforward mechanical means to ensure correct loading without adding significant complexity to the overall device.
3Ease of operation
If the spindle is movable between loading and dispensing positions, then ease of operation is improved, but reliability may worsen
Solution Approach 1:
The deflecting member provides feedback that confirms the spindle has reached the correct dispensing position. When the spindle is properly positioned, the deflecting member is in its expected position, providing reliable confirmation of correct positioning. This feedback mechanism maintains reliability despite the movable spindle design that improves ease of operation.
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
Facilitates easy and correct loading of tissue paper rolls, providing instant feedback to service personnel on proper alignment and preventing faulty loading, thus ensuring seamless dispensing and user-friendliness.
Implementation Method 1
The deflecting member may be movable between its two positions in response to a roll being loaded in the dispenser on the movable spindle. The deflecting member may move into retracted position when a force is applied to it
Implementation Method 2
The deflecting member interacts with a resilient member arranged to allow the deflecting member to flex back into protruding position from retracted position. The resilient member is in relaxed state when the deflecting member is in its protruding position.
Data Source
AI summary
Dispenser for dispensing web material from a roll, the dispenser including a housing and a spindle intended to rotatably support a roll of web material during dispensing. The spindle is movable between a loading position and a dispensing position. The dispenser further includes a deflecting member being movable between a protruding position protruding towards the spindle in dispensing position and a retracted position retracted into the housing away from the spindle in dispensing position. The deflecting member is connected to a blocking member moving in response to the movement of the deflecting member.