Front-Access Auto-Feed Paper Shredder Under Desk
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional paper shredders with auto-feed mechanisms cannot be conveniently placed beneath a desk due to the need to access the input slot from the top or the requirement to swing open compartments, which obstructs desk placement.
Innovation Solution
An auto-feed paper shredder with an input slot on the front surface, equipped with a sliding drawer and counter-rotating feed rollers or a belt system that allows for automatic feeding of paper stacks from the bottom, enabling shredding without the need to open compartments, and allowing the device to be placed under a desk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If an auto-feed mechanism with external tray is used, then large stacks of paper can be shredded automatically, but the overall height and profile of the unit increases making it impossible to place beneath a desk
Solution Approach 1:
The patent integrates the paper tray directly into the shredder housing, nesting the tray within the existing unit structure rather than adding an external attachment. This allows the auto-feed function to be incorporated without increasing the overall height, enabling placement beneath a desk while maintaining automatic feeding capability for multiple sheets
Solution Approach 2:
The patent repositions the input slot from the traditional top location to the front or side of the unit. This dimensional change allows the tray to be accessed from the front while keeping the shredder body compact and low-profile, solving the contradiction between auto-feed capability and desk placement requirements
2Ease of operation
If the input slot is located on the top of the shredder, then paper can be fed easily, but the unit cannot be conveniently placed beneath a desk
Solution Approach 1:
The patent relocates the input slot from the vertical top surface to the horizontal front or side surface of the unit. This repositioning maintains ease of paper insertion while allowing the shredder to fit under a desk, as the input access is now at a lower vertical position that clears the desk underside
3Ease of operation
If a hinged compartment door is used for paper input, then the compartment can be accessed, but the doors will strike the underside of the desk when placed beneath it
Solution Approach 1:
The patent removes the hinged compartment door entirely, replacing it with a simple front-accessible tray design. This eliminates the need for vertical door clearance, allowing the unit to be placed directly beneath a desk without the doors striking the underside, while still providing easy paper loading access
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
Enables convenient shredding of large stacks of paper without obstructing the desk surface, as the auto-feed system allows for continuous operation without manual intervention, maintaining accessibility and compactness.
Implementation Method 1
The pivotal driving roller assembly includes a spaced apart pair of counter-rotating feeding rollers which extend through an opening in the bottom of the paper compartment to contact and grab a sheet of paper from the bottom of a stack of paper
Data Source
AI summary
An auto-feed paper shredder is configured for placement below the surface of a desk. The auto-feeder consists of a drawer located on the front surface of the shredder. This drawer is slid out to insert a stack of documents to be shredded. When the door is slid back into the shredder and the shredding system is activated, feed rollers draw sheets of paper either from the top or the bottom surface of the stack and feed the sheets into a conventional paper shredding mechanism. An input slot is provided to insert single sheets of paper when the auto-feeder is not being used.