Modular Spreader Bar Assembly with Offset Lug Connectors
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Solution Overview
Problem
Existing load lifting and distribution assemblies are often custom-made, expensive, time-consuming to fabricate, and heavy, making them inconvenient to transport and assemble on-site, especially for single-person operations.
Innovation Solution
A modular assembly system comprising members with offset lugs and fasteners that allow for easy connection and adjustment, enabling flexible configuration and distribution of loads, and can be easily assembled and disassembled for various applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If custom fabrication is used to make spreader bar assemblies to exact length requirements, then the assembly can be precisely tailored to handle specific loads, but it becomes expensive and time-consuming
Solution Approach 1:
The spreader bar assembly is divided into multiple modular members that can be connected in different configurations. Each member has standardized connecting members with lugs and holes that allow flexible assembly. This segmentation enables the same set of components to be fabricated once and then assembled into various custom lengths and configurations on-site, eliminating the need for custom fabrication of each unique assembly.
Solution Approach 2:
The assembly uses telescopic members that can be adjusted between extended and retracted positions, allowing the same physical components to provide multiple length configurations. This dynamic adjustment capability enables a single set of members to adapt to different load requirements without requiring multiple custom-fabricated assemblies.
2Ease of operation
If telescopic members or multiple holes are provided to simplify adjustment, then length adjustment becomes easier, but the assemblies become heavy and difficult to carry
Solution Approach 1:
The assembly is segmented into multiple separate members that can be transported independently. Each member is relatively lightweight compared to a single large telescopic assembly. The modular nature allows workers to carry and handle individual members more easily, then assemble them on-site to achieve the required length and configuration.
Solution Approach 2:
The connecting members with standardized lugs and holes serve multiple functions: they join members end-to-end for length adjustment, provide attachment points for lifting equipment, and enable various geometric configurations. This multi-functionality eliminates the need for specialized heavy-duty telescopic mechanisms while achieving the same adjustment capabilities through simpler, lighter components.
3Weight of moving object
If spreader bar assemblies are transported on large trucks, then heavy and bulky assemblies can be moved, but it becomes inconvenient and adds significant cost
Solution Approach 1:
The assembly is divided into multiple compact members that can be transported in smaller vehicles or even carried by hand. Each member has a reduced individual weight and footprint compared to a complete assembled unit. This segmentation transforms the transportation requirement from needing large heavy-duty trucks to using smaller, more convenient vehicles or manual handling, significantly reducing transportation costs and increasing flexibility.
Data Source
AI summary
Provided herein is an assembly for carrying or supporting a load. The assembly comprises a plurality of members connectable in an assembled arrangement for carrying or supporting the load. Each member comprises a first end and a second end, at least one of the first end and the second end has a pair of connecting members comprising two lugs that each has defined therein two holes. The lugs are configured for alignment with a corresponding pair of lugs formed on another member in the assembly. Fasteners extend through the holes formed in the lugs when the holes are aligned. Further provided are members for use in the assembly and connector elements for attaching two or more members in the assembly.