Sheet Roll Dispenser Housing With Drainage and Anti-Overspin Control
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Solution Overview
Problem
Existing sheet product dispensers in industrial environments, such as food processing facilities, lack protection for the roll during operations and wash-downs, result in waste and user frustration due to uncontrolled dispensing and over-spin, and do not facilitate easy separation of sheet product.
Innovation Solution
A sheet product dispenser with a housing that includes a roll support and drainage gap to protect the roll from liquids, a resistance mechanism to prevent over-spin, and tear edges for easy sheet separation, all designed to withstand harsh industrial conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple mechanical dispenser with only a roll support is used, then the device complexity is reduced, but the roll is exposed to contamination from food and cleaning solutions during industrial operations
Solution Approach 1:
The dispenser is segmented into distinct functional components: a housing structure that encloses the roll, a roll support mechanism, a drainage system with separate gaps for liquid egress, and a tear bar facility. This segmentation allows the roll to be protected within the housing while maintaining simplicity of individual components.
Solution Approach 2:
The housing acts as an intermediary barrier between the roll and the harmful environment (food particles and cleaning solutions). The drainage gaps provide a controlled pathway for liquids to exit the housing without contaminating the roll, mediating between the need for protection and the need for drainage.
2Device complexity
If no drainage system is provided, then the device complexity is reduced, but the roll becomes saturated with cleaning solution during wash-downs requiring disposal
Solution Approach 1:
The drainage system extracts excess liquid from the housing interior through dedicated drainage gaps. These gaps allow cleaning solutions to drain away from the roll, preventing saturation and the subsequent waste of sheet product that would require disposal of contaminated portions.
Solution Approach 2:
The housing structure incorporates porous or permeable features in the form of drainage gaps that allow selective passage of liquids while maintaining structural integrity and protection of the roll. The gaps are positioned to allow drainage without compromising the protective enclosure.
3Ease of operation
If free-wheeling roll rotation is allowed, then the ease of operation is improved, but over-spin occurs causing users to remove more sheet product than necessary
Solution Approach 1:
The resistance mechanism applies a preliminary counteracting force to the roll rotation, providing controlled resistance that prevents over-spin while still allowing easy dispensing. This anti-action is built into the system design, creating a balance between ease of operation and waste prevention.
Solution Approach 2:
The resistance mechanism provides tactile feedback to the user during dispensing operations. This feedback allows users to sense when they have pulled the appropriate amount of sheet product, preventing over-spin and the associated waste while maintaining ease of operation.
4Device complexity
If no tear bar or separation facility is provided, then the device complexity is reduced, but user interaction becomes cumbersome requiring two hands
Solution Approach 1:
The tear bar facility provides a self-service mechanism for sheet separation. The predefined tear line and tear bar work together to automatically facilitate clean separation of the sheet product from the roll, eliminating the need for manual two-handed tearing and improving ease of operation.
Data Source
AI summary
A sheet product dispenser for dispensing sheet product from a roll of sheet product is provided. The sheet product dispenser includes a housing defining an interior space configured to receive the roll of sheet product therein, and a roll support positioned within the interior space and configured to rotatably support the roll of sheet product. The housing includes a dispensing gap in communication with the interior space and configured to allow a tail portion of the roll of sheet product to extend therethrough and out of the interior space, and a drainage gap in communication with the interior space and configured to allow a liquid to drain therethrough and out of the interior space. The drainage gap is spaced apart from the dispensing gap and positioned below the dispensing gap. A related method of protecting a roll of sheet product within a sheet product dispenser also is provided.