Sheet Product Dispenser with Coupling Ring for Hygienic Removal
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Solution Overview
Problem
Existing sheet product dispensers face challenges in maintaining hygiene and preventing contamination during the removal of moist sheet products, as they are prone to soiling and exposure to external influences, which compromises the cleanliness and usability of the products.
Innovation Solution
A sheet product dispenser with a housing and packaging unit featuring a roll of sheet products in a liquid-tight bag, where the removal opening is delimited by a dimensionally stable coupling ring connected to an annular feeder, allowing for a modular design that can be easily cleaned and disinfected, and a self-closing closure cover to ensure airtight and hygienic operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the bag is made of flexible material to enable easy connection to the flange, then ease of manufacture is improved, but dimensional stability and hygiene protection deteriorate
Solution Approach 1:
The removal opening is segmented into two distinct components: a flexible bag portion for ease of connection and a rigid coupling ring for dimensional stability. This segmentation allows each component to fulfill its specific function optimally while working together as an integrated system.
Solution Approach 2:
The removal opening combines two different materials with complementary properties: flexible material (such as thermoplastic) for the bag portion enabling easy connection, and rigid material (such as plastic or metal) for the coupling ring providing dimensional stability. This composite approach resolves the contradiction by leveraging the strengths of each material.
2Object-affected harmful factors
If the sheet products are stored in a liquid-tight bag, then hygiene protection is improved, but ease of removal and handling deteriorates
Solution Approach 1:
The removal opening is segmented into a sealed bag portion for hygiene protection and a rigid coupling ring with feeder connection for ease of removal. The segmentation allows the bag to remain sealed during storage while enabling controlled access during use.
Solution Approach 2:
The rigid coupling ring acts as an intermediary component between the sealed bag and the external environment. It provides a stable interface for the feeder mechanism while maintaining the integrity of the sealed bag, thus facilitating easy removal without compromising hygiene protection.
3Stability of the object's composition
If the coupling ring is made of rigid material, then dimensional stability is improved, but ease of connection and disconnection deteriorates
Solution Approach 1:
The rigid coupling ring merges the requirements of dimensional stability with features that facilitate connection. The ring's structure is designed to be both rigid for stability and geometrically suited for engagement with the feeder mechanism, achieving both objectives simultaneously.
4Ease of repair
If the housing and feeder are non-destructively connected, then ease of repair and cleaning is improved, but connection strength deteriorates
Solution Approach 1:
The connection between the housing and feeder is designed to be dynamically reversible rather than permanently fixed. This allows the connection to maintain sufficient strength during normal operation while enabling easy separation for cleaning and maintenance purposes.
Data Source
AI summary
A sheet product dispenser is provided that includes a housing and a packaging unit arranged in the housing. The packaging unit includes a roll of sheet products and a liquid-tight bag in which the roll is arranged. The liquid-tight bag includes a removal opening for removal of the sheet products, the removal opening being delimited by a dimensionally stable coupling ring made of a tough material. The dimensionally stable coupling ring is connected to an annular feeder encompassing a feeder opening, and the housing and the annular feeder are non-destructively and releasably connected to one another.