Refuse Cart Retention Corral with Mechanical Tilting
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Solution Overview
Problem
Existing refuse cart systems are inefficient and unsafe for transporting waste from refuse carts to dumpsters, as they require manual handling, which is time-consuming and unsanitary, or involve tilting the carts, which is dangerous and prone to injury.
Innovation Solution
The development of a refuse cart retention system that includes a retention corral with various mechanisms for securely holding refuse carts, such as retention structures, adjustable yokes, wheel pockets, straps, and foot pedals, to facilitate safe and efficient transportation and emptying of the carts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual handling methods are used to deposit waste from refuse carts to dumpsters, then the process is simple to implement, but it is time-consuming and unsanitary
Solution Approach 1:
The patent introduces a mechanical lifting and tilting system as an intermediary between the refuse cart and dumpster. This system includes a lifting mechanism that raises the cart and a tilting mechanism that angles the cart to dump waste automatically, eliminating the need for manual handling while maintaining sanitation and improving efficiency
2Ease of operation
If the refuse cart is tilted far enough forward to allow waste to slide out, then waste can be deposited into the dumpster, but this method is dangerous and places persons in a position prone to injury
Solution Approach 1:
The patent implements a self-service dumping mechanism where the refuse cart automatically tilts and dumps waste through a controlled mechanical system. The cart is lifted to a predetermined angle by the lifting and tilting mechanisms, allowing waste to slide out automatically without requiring persons to manually tilt the cart, thus eliminating the safety hazards associated with manual tilting
3Quantity of substance
If multiple refuse carts are used simultaneously in settings with many waste sources, then waste collection capacity is increased, but the risks and time requirements are multiplied
Solution Approach 1:
The patent combines multiple refuse carts into a single integrated system with a unified lifting and tilting mechanism. This allows multiple carts to be positioned and emptied simultaneously or in rapid succession through one coordinated mechanical system, rather than requiring separate manual handling for each cart, thus reducing total deposition time while maintaining high waste collection capacity
4Productivity
If the refuse cart is tilted too far forward during waste deposition, then waste can be emptied completely, but the cart may inadvertently fall into the dumpster requiring persons to climb in and retrieve it
Solution Approach 1:
The patent incorporates feedback control in the lifting and tilting mechanisms to monitor the cart's position and angle during the dumping process. The system automatically adjusts the tilting angle to achieve complete waste emptying while preventing excessive forward tilting that could cause the cart to fall into the dumpster, thus maintaining both productivity and reliability
Data Source
AI summary
Refuse carts and refuse cart retention systems for use in retaining refuse carts inside a corral and transporting or emptying the carts when needed. The refuse cart retention system generally includes a retention corral and at least one large refuse cart and/or at least one small refuse cart. Various mechanisms for retaining refuse carts in the retention corral include retention structures to receive a segment of a refuse cart frame, and frame protrusions connected to the retention corral that can be placed in tight contact with a cutout in the sides of the refuse carts having a geometry substantially identical to that of the frame protrusions.