Cantilevered Lifting Device for Side Loading Waste Vehicles
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Solution Overview
Problem
Existing side loading refuse collection trucks require more street space for lifting refuse containers due to the need for a greater distance between the vehicle and the containers, and they cannot load containers from both sides, as designs often rely on claws or jaws that cannot grasp containers close together or near obstacles.
Innovation Solution
A cantilevered lifting and loading device positioned behind the driver's compartment with a horizontal linear movement mechanism, a pivotable beam, and a gripping unit that can engage and lift containers from both sides, allowing for closer proximity to the truck and enabling loading from either side, controlled by hydraulic or electric motors and a computer processor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a conventional side loading lifting device with claws or jaws is used, then the container can be grasped and lifted, but the device requires a greater distance between the vehicle and the container, increasing the space needed for lifting operations
Solution Approach 1:
The patent introduces a horizontal linear movement mechanism as an intermediary between the vehicle and the gripping unit. This mechanism allows the gripping unit to approach the container horizontally from a distance, then engage it closely for lifting. The horizontal movement enables the system to overcome the limitation of conventional direct vertical lifting, allowing both distant approach and close engagement.
2Adaptability or versatility
If a conventional side loading device with fixed positioning is used, then the structure is simple, but the device cannot load containers from both sides of the truck
Solution Approach 1:
The patent implements a pivotable beam that can rotate to position the gripping unit on either side of the vehicle. This dynamic positioning capability allows the same lifting device to serve both sides of the truck, replacing what would traditionally require two separate fixed devices. The horizontal linear movement mechanism also contributes to this versatility by enabling approach from different positions.
3Reliability
If claws or jaws are used to grasp containers, then the container can be secured, but containers must be spaced apart or远离 obstacles, reducing operational flexibility
Solution Approach 1:
The horizontal linear movement mechanism acts as an intermediary that allows the gripping unit to reach containers even when they are close to obstacles. By approaching horizontally from a distance and then engaging closely, the system can secure containers reliably while operating in tighter spaces where conventional direct-approach devices would fail.
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
This solution reduces the space needed for lifting and allows for efficient loading of refuse containers from both sides of the truck, minimizing manual effort and facilitating closer proximity to obstacles, while ensuring secure engagement and discharge of containers.
Implementation Method 1
controlled by hydraulic or electric motors
Data Source
Figure 1~2
Figure 3
Figure 4A~4B
AI summary
Lifting and loading device for a side loading waste vehicle, comprising a beam (1) movable sideways of the waste vehicle, having a grip (7) for dustbin (4) with a dustbin locking mechanism (11) at the end of it. The lifting and loading device enables of grabbing, locking, lifting and unloading the dustbins (4) rather close to the waste vehicle, while there is less need of lifting space in the street for operating the waste vehicle. The movable beam (1) of the present invention, in order to grab a container (4), is connected with a mechanism (14) of horizontal linear movement, which enables grabbing of the container (4) located remote of the waste vehicle. The lifting and loading device of the invention can handle dustbins (4) from both sides of the waste vehicle.