Upright Dustpan Hinged Back Door for Hands-Free Debris Disposal
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Solution Overview
Problem
Upright dustpans require the use of both hands to control the rotation of the main body for disposing debris, posing a risk of exposure in biohazard areas and often result in debris falling out or getting stuck due to complex mechanisms and small waste receptacle openings.
Innovation Solution
An upright dustpan design featuring a hinged back door that can be actuated hands-free via a trigger, allowing for single-handed operation and improved maneuverability by using a latching mechanism that can be released without manual intervention, utilizing a piano hinge and a releasable latching mechanism biased by a spring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a trigger mechanism is added to enable hands-free operation, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The dustpan is designed to automatically trigger the door opening mechanism by utilizing the user's own motion. When the user pushes the dustpan against the receptacle wall, the motion itself activates the trigger, eliminating the need for separate manual triggering or complex control systems
Solution Approach 2:
A trigger mechanism serves as an intermediary element that converts the user's pushing motion into door opening action. This simple mechanical intermediary enables hands-free operation without requiring complex automated systems
2Reliability
If complex mechanisms like cables and pulleys are used for trap door actuation, then reliability of debris containment is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent removes complex intermediate components (cables, pulleys) from the trap door actuation system. Instead, it uses a direct mechanical linkage where the trigger is connected to the door through simple hinges and levers, maintaining reliability while dramatically reducing complexity
Solution Approach 2:
Rather than using complex mechanisms to pull the door closed or hold it open, the invention inverts the approach by using simple gravity and a minimal trigger mechanism to automatically open the door when needed, with the door naturally returning to closed position
3Adaptability or versatility
If the main body is allowed free form rotation, then adaptability to different disposal positions is improved, but ease of operation deteriorates due to uncontrolled motion requiring both hands
Solution Approach 1:
The dustpan is segmented into independently controllable components: the handle can be positioned freely for adaptability, while the main body's rotation is controlled by the one-handed trigger mechanism. This segmentation allows each part to fulfill its specific function without interfering with the other
4Volume of moving object
If waste receptacles have small openings, then space utilization is improved, but adaptability of dustpan maneuverability deteriorates causing debris to fall out or dustpan to get stuck
Solution Approach 1:
The trigger mechanism is activated in advance by pushing the dustpan against the receptacle wall before debris disposal. This preliminary action ensures the door is already open and ready, allowing smooth debris transfer through small openings without getting stuck or spilling
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 safe, single-handed disposal of debris into waste receptacles, reducing exposure risks and improving usability in various settings by allowing hands-free operation and preventing debris from spilling or getting stuck.
Implementation Method 1
a releasable latching mechanism biased by a spring
Data Source
AI summary
A hands-free, easy to use, manufacture and assemble upright dustpan with a hinged back door. The dustpan can pivot on the main body and the hinged back-door can be locked or unlocked via a latching mechanism and a trigger, all located on the dustpan's main body. When the latching mechanism is triggered, the hinged back door opens either under its own weight or under the weight of the debris and thus allows debris to leave the compartment and fall into the waste receptacle when the dust pan is held above the waste receptacle in pivoted orientation. The trigger can be actuated by the edge of the waste receptacle, or any rigged body. Whereas the hinged back door can be closed back by tapping on the floor.