Pivoting Roll Fill Indicator for Closed Sheet Dispensers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing absorbent sheet material dispensers lack an efficient and accurate method for determining the roll fill level without requiring service personnel to open the dispenser, leading to unnecessary roll replacements and design unattractiveness.
Innovation Solution
A roll fill level indicator arrangement featuring a pivoting arm with a moveable indicator device that provides a gradual indication of the roll's fill level, allowing users to assess the remaining material without opening the dispenser, using a combination of a pivoting arm and stationary indicator devices for accurate and aesthetically pleasing visualization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If service personnel open the outer cover to check roll fill level, then they can determine current fill level accurately, but this results in high wear of the cover opening and locking mechanism and is time consuming
Solution Approach 1:
A window is introduced as an intermediary element in the outer cover, allowing service personnel to view the roll fill level through the window without opening the cover. This mediator enables the function of fill level checking while preserving the cover's closed state, thus reducing wear on opening and locking mechanisms.
Solution Approach 2:
The invention creates a visual copy or representation of the roll's internal state by making the roll visible through the window in the outer cover. Service personnel can assess the fill level by observing the roll directly through this opening, eliminating the need to physically open the cover while still obtaining accurate fill level information.
2Loss of time
If a window is provided in the outer cover to see the roll from outside, then roll fill level can be checked swiftly without opening the cover, but this may be unattractive from a dispenser design perspective
Solution Approach 1:
The window is positioned locally in the outer cover at a specific location where it serves the functional purpose of fill level checking while minimizing impact on the overall aesthetic design. The window's placement and dimensions are optimized to provide necessary visibility while maintaining the dispenser's visual appeal in other areas.
3Reliability
If a roll diameter sensor and indicator mechanism are provided, then indication can be given when roll has reached predetermined diameter, but this increases device complexity and requires additional work by service personnel during roll replacement
Solution Approach 1:
The dispenser performs self-monitoring of the roll fill level by making the roll visible through the window, eliminating the need for separate sensor and indicator mechanisms. Service personnel can independently assess the fill level by visual inspection through the window, removing the complexity of automated sensing and indication systems while still providing reliable replacement timing information.
Data Source
AI summary
An object of the present disclosure is to provide an apparatus for dispensing absorbent sheet material from a roll. The apparatus includes a roll holder for rotatably supporting said roll, and a roll fill level indicator arrangement. The roll fill level indicator arrangement includes a pivoting arm and a moveable first indicator device. The pivoting arm includes roll engagement device for engagement with an outer peripheral surface of said roll. A position of said first indicator device is continuously responsive to an angular position of said pivoting arm, such that said roll fill level indicator arrangement is able to provide a gradual roll fill level indication.