Weighted Impact Locking Mechanism for Waste Containers
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Solution Overview
Problem
Existing locking devices for waste containers are inadequate in preventing spillage when the container is knocked over, as they either require multiple steps to secure or deteriorate due to environmental exposure, and lack effective mechanisms to differentiate between intentional dumping and unintended tipping.
Innovation Solution
A locking device with a weighted mechanism and impact detection paddles that keeps the lid closed during sudden movements like impacts, but allows opening when the container is tipped forward for dumping, using a dual-button actuation system and a latch mechanism that engages with the container's side walls to prevent spillage while allowing manual or automated dumping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a strap locking mechanism is used, then the lid can be secured to the container, but the locking process requires multiple steps and the strap can easily become separated
Solution Approach 1:
The patent extracts the complex multi-step strap locking process and replaces it with a single integrated latch mechanism that automatically engages when the lid is closed, eliminating the need for separate locking steps while maintaining security
Solution Approach 2:
The latch mechanism is designed to automatically engage and lock the lid without requiring manual intervention, making the system self-securing upon closure while the release mechanism provides simple one-handed operation
2Force
If a metal coil locking device is used, then greater tension can be provided, but the coil deteriorates due to exposure to the elements
Solution Approach 1:
The patent changes the material parameters of the locking mechanism from metal coil to a polymer-based latch system with engineered elastic properties, maintaining sufficient locking force while achieving resistance to environmental deterioration
Solution Approach 2:
The latch mechanism utilizes composite material properties combining elasticity for engagement force with environmental resistance, replacing the metal coil's tensile strength approach with a more durable polymer-based elastic deformation system
3Reliability
If a locking device is designed to prevent lid opening during impacts, then spillage is prevented, but the lid cannot open during intentional dumping operations
Solution Approach 1:
The latch mechanism incorporates dynamic response characteristics where the engagement force adapts based on the magnitude and duration of applied forces, automatically distinguishing between brief impact loads and sustained dumping operations through elastic deformation behavior
Solution Approach 2:
The spring-loaded latch provides preliminary locking action that resists accidental opening forces, while the design inherently allows override when sufficient force is applied in the dumping direction, preventing false locking during normal use
4Ease of operation
If a friction-fit lid coupling is used, then the lid can be easily removed, but the lid becomes unsecured and contents can be expelled
Solution Approach 1:
The patent merges the easy removal feature with automatic security locking by integrating the latch mechanism into the lid closure process itself, where closing the lid simultaneously engages both the friction fit and the positive latch lock in a single operation
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 locking device effectively prevents spillage during accidental container tilts or impacts while allowing easy manual or automated dumping by distinguishing between intended and unintended tipping, ensuring secure closure and convenient operation without additional devices.
Implementation Method 1
A locking device with a weighted mechanism and impact detection paddles that keeps the lid closed during sudden movements like impacts
Implementation Method 2
impact detection paddles that keeps the lid closed during sudden movements like impacts
Data Source
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AI summary
A locking device for a container is provided. The locking device contains a weighted mechanism (66) having a mounting block (106) and at least one paddle (110) mounted on the mounting block (106). The weighted mechanism (66) is movable between a locked position and an unlocked position. The at least one paddle (110) having two opposing ends. A first end is mounted to the mounting block by a rotatable coupling (120) to allow the paddle to pivot thereon. A second end of the paddle is detachably mounted to a surface of the mounting block (106), such that a sudden jerking or jarring motion, such as by impact with the ground, causes the second end to detach from the mounting block (106) to block the weighted mechanism (66) from moving from the locked position to the opened position.