Electric Kickbar Assembly for Hydraulic-Free Refuse Container Lifting

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Solution Overview

Problem

Existing hydraulic kickbar assemblies for refuse vehicles are inefficient and require significant hydraulic systems, limiting their application to fossil-fueled vehicles and complicating the design of electrically powered vehicles.

Innovation Solution

The implementation of electrically powered kickbar assemblies using linear actuators and a control system that allows for manual or automatic operation, reducing the need for hydraulic systems and enabling faster, more efficient lifting and dumping of refuse containers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If hydraulic systems are used to power kickbar assemblies, then lifting capability and operational reliability are improved, but system complexity and dependency on fossil-fueled vehicles increase

Engineering Contradiction:
Improveoperational reliabilityVSAvoidhydraulic system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces the hydraulic system with an electric motor-driven system. The electric motor directly drives the kickbar mechanism through a reduction gear, eliminating the need for hydraulic pumps, reservoirs, filters, and control valves. This substitution reduces system complexity while maintaining operational reliability through direct electrical actuation.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent extracts and removes the hydraulic system components from the kickbar assembly. By taking out the hydraulic subsystem, the design achieves a simpler, more compact structure that can be integrated into both fossil-fueled and electrically powered refuse vehicles without requiring dedicated hydraulic infrastructure.

Inventive Principle:
Principle #2Taking out (Extraction)

2Ease of operation

If hydraulic kickbar assemblies are installed on electrically powered vehicles, then lifting function is achieved, but system adaptability and versatility are reduced

Engineering Contradiction:
Improvelifting functionVSAvoidvehicle compatibility
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The patent designs the kickbar assembly with universal adaptability by using an electric motor that can be integrated into various vehicle types. The system can be installed on fossil-fueled vehicles with electric auxiliary power, partially electric vehicles, or fully electric vehicles. The electric motor serves as a universal power source that adapts to different vehicle configurations, enabling the same lifting function across multiple vehicle platforms.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Power

If hydraulic systems are dedicated to operating kickbar assemblies, then lifting performance is optimized, but loss of energy and reduced efficiency occur

Engineering Contradiction:
Improvelifting powerVSAvoidhydraulic energy loss
Core Design Contradiction:
PowerVSLoss of energy

Solution Approach 1:

The patent eliminates hydraulic energy losses by replacing the hydraulic system with direct electric motor drive. Electrical motors convert electrical energy directly into mechanical motion without the energy losses associated with hydraulic fluid compression, leakage, and friction. The electric motor drives the kickbar mechanism through a reduction gear, providing efficient power transmission with minimal energy loss.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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 electrically powered kickbar assemblies provide a reliable and compact solution that reduces operator strain, enhances efficiency, and allows for quick servicing of multiple containers, suitable for both fossil-fueled and electrically powered refuse vehicles.

Implementation Method 1

The kickbar assemblies utilize a DC electrical power source... each of the linear actuators being pivotably connected to one of the respective base frames and one of the respective opposed ends of the lifting implement

Methodology Applied
Scientific EffectElectromagnetic conversion: Electromagnetic Induction

Data Source

PatentUS12391470B2Kickbar assembly
Publication Date: 2025.08.19 PERKINS MANUFACTURING CO
  • US12391470B2 patent drawing
  • US12391470B2 patent drawing
  • US12391470B2 patent drawing

AI summary

A kickbar assembly for use in lifting and dumping a refuse container into a hopper of a rear load refuse vehicle, the kickbar assembly comprising: a pair of base frames configured to be connected to side walls of the refuse vehicle, an elongated generally U-shaped lifting implement having a pair of opposed ends pivotably connected to the respective base frames, a pair of electrically powered linear actuators, each of the linear actuators being pivotably connected to one of the respective base frames and one of the respective opposed ends of the lifting implement, the lifting implement being pivotably connected to the base, wherein the linear actuators move the lifting implement from a refuse container engaging lower position to an upper position to dump contents from the refuse container into the hopper, and further move the lifting implement to the lower position to return the refuse container to the ground surface.