Shredder Guard Adjusts Aperture for Rigid Media
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Solution Overview
Problem
Conventional shredders face issues with fragments of rigid sheet materials striking users due to the rigidity of the materials being shredded, and existing protective guards are inefficiently designed, often offsetting apertures which can lead to improper feeding and reduced space efficiency.
Innovation Solution
A moveable protective guard that adjusts symmetrically between two configurations to accommodate different sizes of sheet materials, allowing for central insertion and full coverage of the feed slot, ensuring user safety and efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate apertures are positioned alongside one another in the guard, then different sheet materials can be accommodated, but the apertures become off-set from the central region of the feed slot
Solution Approach 1:
The guard is made movable and adjustable between different configurations. The aperture size and position can be dynamically changed by moving the guard laterally between a first configuration (for credit cards) and a second configuration (for CDs), allowing central alignment for each material type while maintaining versatility.
Solution Approach 2:
The guard is divided into movable segments or sections that can be adjusted independently. This segmentation allows the aperture to be repositioned laterally to different configurations, enabling both credit card and CD shredding with proper central alignment for each.
2Adaptability or versatility
If multiple separate apertures are positioned alongside one another in the guard, then different sheet materials can be accommodated, but the space utilization becomes inefficient
Solution Approach 1:
Instead of having multiple fixed apertures occupying space side-by-side, the guard uses a single aperture that can be dynamically repositioned laterally between configurations. This dynamic approach eliminates wasted space between multiple fixed apertures while maintaining the ability to accommodate different sheet materials.
3Ease of manufacture
If a fixed guard with predetermined aperture size is used, then manufacturing is simple, but the guard cannot accommodate different sizes of sheet materials
Solution Approach 1:
The guard incorporates movable components that allow adjustment between different aperture configurations. While slightly more complex than a fixed guard, the mechanism remains relatively simple, involving lateral movement between predetermined positions for credit cards and CDs, thus balancing manufacturability with versatility.
Solution Approach 2:
The guard is designed as a multi-functional component that can serve multiple purposes by adjusting to different configurations. A single guard structure handles both credit card and CD shredding operations, eliminating the need for multiple specialized guards while remaining manufacturable.
Data Source
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AI summary
A shredder arrangement comprising a housing defining a feed slot for receiving sheet material inserted by a user; a cutting mechanism for shredding the sheet material inserted through the feed slot, and a protective guard for positioning across the feed slot to prevent relatively rigid sheet material from striking the user during shredding of such sheet material, the guard defining an aperture allowing said sheet material to be inserted through the guard and into the feed slot; wherein the protective guard is moveable between a first configuration and a second configuration to symmetrically adjust the size of the aperture.