Compact Loader Arm Path for Vertical Lift and Tight Maneuvering
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing utility loaders are often large and difficult to maneuver due to their width and length, and compact versions with narrow tracks suffer from reduced maneuverability and poor load distribution, particularly on soft ground.
Innovation Solution
A compact utility loader design featuring a frame with a narrow overall width and oversized tracks, combined with a vertical-lift configuration for loader arms and a control interface with a graphic display for operational information, including a keyless start mechanism and enhanced operator functionalities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If utility loaders are made large to improve load capacity and stability, then load distribution and stability improve, but maneuverability deteriorates
Solution Approach 1:
The loader is divided into distinct width zones: the frame has a narrow lower width for maneuverability while the upper width accommodates standard attachments. This segmentation allows the machine to have a small footprint for easy maneuvering while maintaining full attachment compatibility and load capacity.
Solution Approach 2:
The patent transitions from considering only overall width to incorporating vertical dimension considerations. The frame's upper portion width exceeds the lower portion width, creating a tapered profile that allows narrow ground clearance for maneuverability while providing sufficient upper width for attachment mounting, effectively using vertical space to resolve the width contradiction.
2Length of moving object
If compact utility loaders use narrow tracks to reduce width, then overall width decreases, but load distribution and ground pressure worsen
Solution Approach 1:
The track width is locally optimized to be oversized (wider than conventional compact loaders) specifically at the ground contact points, while the overall machine width remains compact. This local quality enhancement ensures excellent load distribution and ground pressure management without compromising the compact overall dimensions needed for maneuverability.
3Device complexity
If loader arms follow a traditional arcuate path, then structural simplicity is maintained, but operational precision and load placement accuracy deteriorate
Solution Approach 1:
The loader arms are pre-configured with a vertical lift path that moves the attachment vertically rather than following a traditional arc. This preliminary design of the arm geometry and pivot points ensures that the attachment follows a precise vertical trajectory during lifting operations, improving load placement accuracy while maintaining reasonable structural complexity.
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 f(x)=4.641e0.34x. The value “x” represents a horizontal direction and the function f(x) represents a vertical direction.