Sheet Product Dispenser Auxiliary Feed for Tear Sensor Failure
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Solution Overview
Problem
Existing sheet product dispensers lack effective detection of when the dispensed product has been separated, leading to potential waste and inconsistent dispensing, as they do not adequately address the issue of sheet product separation and further dispensing if the tear is not detected.
Innovation Solution
A sheet product dispenser with a main controller, motor, dispensing mechanism, maintenance switch, and auxiliary feed push button, along with a tear sensor and movable tear bail, which allows for user-initiated dispensing and overrides motor-stop signals due to paper jams, ensuring consistent and efficient dispensing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a tear sensor is used to detect sheet product separation, then detection precision is improved, but reliability deteriorates because the sensor may fail to detect separation due to paper jams or other issues
Solution Approach 1:
The patent introduces an auxiliary feed button as an intermediary mechanism that allows users to manually initiate sheet product dispensing when the tear sensor fails to detect separation. This manual override compensates for sensor failures, ensuring that the system remains reliable even when automated detection fails due to paper jams or other issues.
Solution Approach 2:
The system implements feedback through the auxiliary feed button that allows users to respond to sensor failures. When the tear sensor fails to detect separation, the user can press the auxiliary feed button to manually trigger dispensing, creating a feedback loop that ensures continuous operational reliability despite sensor limitations.
2Ease of operation
If the dispenser relies solely on automated tear detection, then ease of operation is improved, but productivity deteriorates due to dispensing interruptions when sensors fail
Solution Approach 1:
The auxiliary feed button enables users to self-service the dispensing process when automated detection fails. Users can manually initiate dispensing without requiring maintenance intervention or system reset, maintaining productivity while preserving ease of operation through simple manual activation.
3Productivity
If the dispenser continues dispensing without detecting separation, then productivity is improved, but loss of substance worsens due to wasted sheet product
Solution Approach 1:
The tear sensor provides feedback about sheet product separation to the control system. When separation is detected, the system stops dispensing, preventing waste of additional sheet product while maintaining productivity by automatically initiating the next dispensing cycle when needed.
Data Source
AI summary
A sheet product dispenser includes a housing having a front cover, a main controller, a motor, a dispensing mechanism, a maintenance switch, and an auxiliary feed push button. The motor, main controller and dispensing mechanism are configured to dispense a length of sheet product in response to a signal representative of a request for sheet product. The maintenance switch is internally disposed within the housing and accessible for actuation when the front cover is open, in operable communication with the main controller to facilitate operation of the motor when actuated. The auxiliary feed push button is disposed in operable communication with the maintenance switch, and is disposed to be accessible and actuatable when the cover is closed. The main controller is responsive to executable instructions to facilitate actuation of the motor in response to a signal from the maintenance switch when actuated by the auxiliary feed push button.