Compact Loader Arm Path With Wide Tracks for Tight-Space Lifting
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Solution Overview
Problem
Current compact utility loaders have large widths and lengths, making them difficult to maneuver and operate, and narrow tracks lead to poor load distribution and maneuverability issues, especially on soft ground.
Innovation Solution
A compact utility loader design with a narrow overall width and oversized tracks, along with a vertical-lift loader arm configuration and a keyless start mechanism, to enhance maneuverability and load distribution while maintaining operational efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the loader width is reduced to improve maneuverability, then the loader can operate in tight spaces, but the track width must be increased to maintain load distribution
Solution Approach 1:
The patent applies local quality by making the tracks wider than the overall loader width, creating a localized expansion at the ground contact points. This allows the loader body to remain narrow for maneuverability while the tracks provide sufficient surface area for load distribution, resolving the contradiction between compact size and operational capability.
2Area of stationary object
If narrow tracks are used to reduce loader size, then the loader footprint is reduced, but load distribution onto the ground deteriorates
Solution Approach 1:
The patent resolves this contradiction by transitioning to another dimension - using oversized tracks that extend laterally beyond the loader's overall width. This creates a situation where the effective ground contact area is larger than the loader footprint, allowing reduced footprint while maintaining excellent load distribution through the extended track width.
3Device complexity
If the loader arms follow a traditional arc path, then the mechanical structure is simpler, but the operational precision and control are reduced
Solution Approach 1:
The patent applies dynamics by implementing a vertically-lift loader arm configuration where the hitch pin follows a controlled vertical path defined by f(x)=4.641e0.34x. This dynamic path control provides superior operational precision and load stability compared to traditional arc paths, while the electronic control system manages the increased complexity through automated regulation.
Data Source
AI summary
A compact utility loader compact utility loader comprising a frame, a first track and a second track positioned on either side of the frame, and a pair of loader arms. The loader arms are configured to couple with an attachment via a hitch plate and a hitch pin. The compact utility loader is configured such that as the loader arms are raised and lowered, the hitch pin follows a path approximately defined by a curve ƒ(x)=4.641e0.34x. The value “x” represents a horizontal direction and the function f(x) represents a vertical direction.