Lateral Stabilizer for Refuse Vehicle Fork Tube
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Solution Overview
Problem
Existing refuse vehicles face challenges in stabilizing the fork tube laterally during transit, which can lead to horizontal sway and instability when collecting and transporting waste.
Innovation Solution
The implementation of a lateral stabilizer assembly that includes a backer plate, a pivotal arm with a spring, and a down stop, which engages with the fork tube to limit lateral movement and maintain stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the fork tube is left free-moving during transit, then the ease of operation is improved, but the stability of the object deteriorates
Solution Approach 1:
The lateral stabilizer assembly incorporates a pivotal arm that can rotate between a first position (where it limits lateral movement) and a second position (where it allows lateral movement). This dynamic mechanism automatically adjusts the degree of constraint based on the operational state, providing stability during transit while maintaining operational flexibility when needed.
2Stability of the object's composition
If a lateral stabilizer assembly is added to limit fork tube movement, then the stability is improved, but the device complexity increases
Solution Approach 1:
The lateral stabilizer assembly is divided into distinct functional components: a backer plate mounted to the vehicle, a pivotal arm that rotates to engage/disengage, bump plates attached to the fork tube, and a spring providing restoring force. This segmentation allows each component to perform its specific function efficiently while simplifying the overall design and maintenance of the system.
Solution Approach 2:
The spring-loaded pivotal arm mechanism automatically engages and disengages the lateral stabilization function based on the natural movement of the fork tube during operation. The system self-regulates without requiring external control inputs, reducing the need for additional control systems and simplifying 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
This solution effectively prevents horizontal sway of the fork tube, enhancing the stability and safety of the refuse vehicle during transit and waste collection operations.
Implementation Method 1
The lateral stabilizer assembly includes a backer plate coupled to the front bumper, and a pivotal arm coupled to the backer plate and including a spring. The spring extends along an axis about which the pivotal arm is configured to pivot toward and away from the backer plate.
Data Source
AI summary
A refuse vehicle includes a chassis, a body supported on to the chassis, a front bumper, a lift arm assembly selectively movable between a raised position and a lowered position, a fork tube coupled to the lift arm assembly and including a pair of bump plates, and a lateral stabilizer assembly. The lateral stabilizer assembly includes a backer plate coupled to the front bumper and a pivotal arm coupled to the backer plate and including a curved down stop arranged at an end of the pivotal arm. When the lift arm assembly moves from the raised position to the lowered position, the fork tube engages the pivotal arm and the pivotal arm pivots toward the backer plate. When the fork tube engages the pivotal arm, engagement between the pivotal arm and the pair of bump plates limits lateral movement of the fork tube.