Compressing and shredding device
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Solution Overview
Problem
Existing hand drying devices in public restrooms, particularly those using disposable cellulose towels, face issues of inefficient compaction and shredding, leading to overflowing disposal containers and contamination due to complex designs or inadequate compaction/shredding performance, often requiring additional connections to suction or drainage lines.
Innovation Solution
A compacting and shredding device with parallel rollers rotating in opposite directions, integrated into a hygiene station, effectively compacts and shreds used towels without the need for external connections, ensuring self-contained operation and efficient disposal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If complex compaction and shredding devices are used, then compaction and shredding performance is improved, but device complexity increases and additional connections to suction or drainage lines are required
Solution Approach 1:
The patent combines the compaction function and shredding function into a single integrated unit with two rollers that perform both operations simultaneously. The first roller compacts the towel material while the second roller shreds it, eliminating the need for separate compaction and shredding devices and their associated connections to suction or drainage lines.
Solution Approach 2:
The device is designed to be self-contained and self-sufficient, processing towels through the integrated compaction and shredding mechanism without requiring external connections to suction systems, drainage lines, or other auxiliary infrastructure. The rollers are directly driven and handle the entire processing sequence autonomously.
2Device complexity
If manual compaction is used, then device complexity is reduced, but disposal container capacity is insufficient and overflow occurs
Solution Approach 1:
The patent replaces the manual mechanical compaction action with an automated roller-based system. The two rollers work together to automatically compact and shred towels as they are deposited, eliminating the need for manual intervention while significantly increasing the effective capacity of the disposal container through consistent, forceful compaction.
3Productivity
If additional connections to suction or drainage lines are made, then compaction and shredding performance is improved, but ease of installation is reduced and device complexity increases
Solution Approach 1:
The patent extracts and eliminates the requirement for external suction or drainage line connections by integrating all necessary compaction and shredding functions into a self-contained unit. The device processes towels completely independently, removing the need for complex installations involving multiple external connections and reducing installation complexity to minimal requirements.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device extends disposal container capacity, reduces overflow risk, and maintains hygiene by compacting and shredding towels, including moist and soiled ones, while being modular and safe, thus enhancing user convenience and facility cleanliness.
Implementation Method 1
at least two rollers arranged parallel to one another and rotating in opposite directions about their axes
Implementation Method 2
compacting and shredding unit for compacting and shredding towels
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The present invention relates to a compressing and shredding device (100) for integration in a hygiene station (10) for human hand hygiene, which device is designed for compressing and shredding hand towels, in particular used and wet disposable paper towels, wherein the compressing and shredding device (100) comprises: - at least one receiving container (102) with a feed opening (112) and with an interior (14) for receiving compressed and shredded hand towels; - at least one compressing and/or shredding unit (104) for compressing and shredding hand towels, which unit is arranged at the feed opening (112) of the receiving container (102); and - at least one drive unit (106) for driving the compressing and/or shredding unit (104).