Dispenser for sheet products and operating method
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Solution Overview
Problem
Existing sheet product dispensers either allow users to take arbitrary numbers of products, leading to waste, or dispense only one product at a time, which can be cumbersome in urgent situations, lacking a convenient method to dispense a preselected number of products efficiently.
Innovation Solution
A dispenser with an electronic controller that automatically transfers a preselected number of sheet products into a presentation position upon removal of a product, disabling further dispensing when the stock reaches a low level to indicate the need for refilling and prevent clutter during refilling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the dispenser allows users to take an arbitrary number of sheet products, then user convenience is improved, but product waste increases
Solution Approach 1:
The dispenser changes the parameter of dispensing quantity from unlimited to predetermined, using a controller to automatically transfer a preselected number of sheet products into the presentation position, thereby reducing waste while maintaining ease of use
Solution Approach 2:
The dispenser serves itself by automatically detecting when a product is removed and autonomously transferring additional products to the presentation position without requiring user intervention, resolving the contradiction between convenience and waste
2Loss of substance
If the dispenser dispenses only one sheet product at a time, then product waste is reduced, but user convenience deteriorates in urgent situations
Solution Approach 1:
The dispenser dynamically adjusts the dispensing quantity based on user needs and stock levels, allowing it to dispense a preselected number of products (more than one) when appropriate, thus improving convenience without compromising waste reduction
Solution Approach 2:
The dispenser changes the parameter of dispensing quantity from fixed (one at a time) to variable (preselected number), enabling it to respond to urgent situations by dispensing multiple products while still maintaining control to prevent waste
3Productivity
If the dispenser automatically transfers sheet products into the presentation position, then dispensing speed is improved, but device complexity increases
Solution Approach 1:
The dispenser replaces manual mechanical operations with an electronic control system that automatically detects product removal and triggers the transfer mechanism, thereby improving dispensing speed while managing complexity through automation
Solution Approach 2:
The dispenser performs self-monitoring and self-action by automatically detecting when a product is removed and initiating the transfer of additional products without user intervention, improving productivity while the automated nature manages operational complexity
Data Source
AI summary
A dispenser for sheet products includes a housing having a space inside for accommodating a stack of sheet products, wherein the housing includes a dispensing opening for dispensing a sheet product from the front of the stack, and an electronic controller configured to receive a pull-out signal indicating the removal of a product from the front of the stack through the dispensing opening and, upon receiving said pull-out signal, to send out a drive signal to transfer a number of sheet products from the front of the stack into a presentation position. The controller is further configured to receive a low-level signal indicating that the amount of sheet products left within the housing has been reduced to below a predetermined level and, upon receiving said low-level signal, to enter into a low-level mode in which the sending of the drive signal in response to the pull-out signal is disabled.