Cross-Support Assembly Vision Axis for Construction Machines
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Solution Overview
Problem
The existing lift arm cross members in construction machines obstruct the operator's view during lifting operations, especially when the lifting arms are not in the highest or lowest position, limiting visibility and operational efficiency.
Innovation Solution
A cross-support assembly with a cross tube or truss framework that includes openings, such as through holes or strategically positioned trusses, to provide an axis of vision for multiple lifting positions, enhancing the operator's view while maintaining structural stability and supporting loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a solid cross-support assembly is used to connect lifting arms, then structural stability and load-bearing capacity are improved, but operator's view and visibility are obstructed
Solution Approach 1:
The cross-support assembly is segmented into a truss framework consisting of multiple discrete members (vertical posts, horizontal beams, diagonal bracing) rather than a solid continuous structure. This segmentation creates gaps and openings that allow visibility through the assembly while maintaining structural integrity through the truss design.
Solution Approach 2:
The cross-support assembly adopts a porous/open framework structure with intentional voids and openings formed by the truss configuration. This allows light and vision to pass through the assembly from multiple angles while the remaining structural elements maintain sufficient strength to support lifting loads.
2Object-affected harmful factors
If openings are added to the cross-support assembly to improve visibility, then operator's view is improved, but structural stability may be compromised
Solution Approach 1:
The assembly is divided into multiple truss members that work together to distribute loads. The segmented structure with vertical posts, horizontal beams, and diagonal bracing creates inherent stability through geometric triangulation while allowing visibility through the spaces between members.
Solution Approach 2:
The cross-support assembly combines multiple structural elements (vertical posts, horizontal beams, diagonal bracing) into a composite truss system. This composite structure achieves both visibility (through the open framework) and structural stability (through the combined action of all members working together to resist loads).
Data Source
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AI summary
The invention relates to a cross-support assembly (10) extending between and connecting two generally parallel lifting arms (120) of a working machine (100). A front end (136) of the lifting arms (120) is connectable with an implement (130). A back end (135) of the lifting arms (120) is pivotably connectable with a front unit (116) of the working machine (100). The cross-support assembly (10) provides an axis of vision (12) through the cross- support assembly (10) for at least two different lifting positions of the lifting arms (120) by having an opening (14) in the cross-support assembly (10).