Gravity-Actuated Flaps for Waste Container Sealing
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Solution Overview
Problem
Existing waste collection devices face issues such as instability during emptying, reduced capacity due to mechanisms, vulnerability to dirt and deformation, and inefficient unloading processes, leading to potential waste misplacement and incomplete emptying.
Innovation Solution
A waste collection device with self-closing flaps that open independently, eliminating the need for external mechanisms and allowing for easier emptying and reduced maintenance, featuring hinges positioned for gravity-assisted closure and actuating members for efficient opening, enabling tidier and safer operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If external closing mechanisms (bolts, mushrooms, cables) are used to keep flaps closed during hoisting, then waste containment is improved, but device complexity and maintenance requirements increase
Solution Approach 1:
The flaps are designed to self-close during hoisting by utilizing their own weight and gravity. The hinge connection allows automatic closing without external mechanisms, eliminating the need for bolts, mushrooms, or cables while ensuring waste containment through passive gravitational action.
Solution Approach 2:
The invention uses the weight of the flaps themselves as a counterbalancing force. By positioning the hinges appropriately and allowing the flaps to pivot under gravity, the system creates a self-balancing mechanism where the flap weight provides the closing force needed during hoisting operations.
2Reliability
If flaps are kept closed by external mechanisms, then waste leakage is prevented, but ease of operation and unloading efficiency deteriorate
Solution Approach 1:
The flaps automatically close during hoisting and transport, then self-open during unloading by utilizing the same gravitational force. This eliminates the need for manual operation or external actuating mechanisms, significantly improving ease of operation and unloading efficiency while maintaining leak prevention through passive self-closing action.
3Reliability
If multiple flaps are used at the bottom opening, then sealing performance is improved, but device complexity and space requirements increase
Solution Approach 1:
The bottom opening is divided into multiple flap segments that can operate independently. Each flap is hinged separately and can close against the opening, providing enhanced sealing performance through multiple contact points while maintaining simplicity through the modular nature of the segmented design.
4Reliability
If flaps are positioned to close the bottom opening effectively, then waste containment is improved, but vulnerability to dirt and deformation increases
Solution Approach 1:
Instead of having complex locking mechanisms that are vulnerable to dirt accumulation, the invention inverts the approach by using simple hinged flaps that rely on gravity and weight. This simplified configuration reduces the number of moving parts and connection points where dirt can accumulate, thereby reducing vulnerability to contamination and deformation while maintaining effective waste containment.
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 provides increased storage capacity, reduced failure rates, improved sealing, and efficient unloading by allowing independent flap operation, reducing the risk of waste misplacement and deformation, while maintaining a compact design.
Implementation Method 1
the flaps are configured for being urged into an inactive position by their own weight
Data Source
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AI summary
The subject matter described comprises a device (1) for collecting waste, a device (110) for unloading such a collection device (1), and a method for emptying the collection device. The collection device comprises two flaps (7, 9) arranged at a lower section so as to be movable for closing off an opening (60) for emptying the collection device. The flaps are configured for being urged into an inactive position by their own weight, in which position they close off the opening. The flaps are furthermore configured to be movable from the inactive position in opposite directions and at least partly upward into an open position, wherein in the open position of the flaps the opening is at least partly cleared for removing collected waste from the device. In addition, the flaps can be moved independent of each other at least into the open position.