Modular Scaffold Support Post with Reduced Diameter Segments
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Solution Overview
Problem
Existing scaffolding systems lack inter-compatibility between support post-type and frame-type modular systems, leading to inefficiencies in labor and load-carrying capacity, particularly in industrial applications where higher load capabilities are required.
Innovation Solution
A modular scaffold system with support posts featuring elongate tubes of 1.90 inches diameter and inwardly recessed segments of reduced diameter for securing rosettes, allowing for inter-compatibility with frame-type systems and maintaining modularity through standardized connecting components like ledgers and cross-braces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If support post-type modular systems use 1.90 inch diameter tubes, then load-carrying capacity is improved, but weight is increased making them harder to carry
Solution Approach 1:
The support post is segmented into different diameter sections: the main body is 1.90 inches for high load capacity, while the connection segments are reduced to 1.69 inches to match frame systems. This segmentation allows the post to provide high strength where needed while reducing weight in connection areas for easier handling.
Solution Approach 2:
Different portions of the support post have different diameters tailored to their specific functions. The main body maintains 1.90 inches for maximum load capacity, while connection segments are locally reduced to 1.69 inches to enable compatibility with frame systems and reduce overall weight.
2Weight of moving object
If frame-type systems use smaller diameter tubes (1.69 inches), then weight is reduced for easier carrying, but load-carrying capacity is decreased
Solution Approach 1:
The support post is designed with multiple diameter sections that serve different functions: the 1.90 inch section provides high load capacity for industrial applications, while the 1.69 inch connection segments enable compatibility with lighter frame systems. This multi-functionality allows a single component to serve both high-strength and weight-saving purposes.
3Strength
If support posts have larger diameter (1.90 inches), then load-carrying capacity is improved, but inter-compatibility with frame-type systems is reduced
Solution Approach 1:
The support post is divided into segments with different diameters: the main body remains 1.90 inches for high load capacity, while connection segments are reduced to 1.69 inches to match frame system dimensions. This segmentation enables the post to interface with frame systems while maintaining its high-strength characteristics.
Solution Approach 2:
The connection segments of the support post are locally reduced to 1.69 inches to match the diameter of frame system tubes, enabling direct compatibility. This local dimensional change allows the larger 1.90 inch post to interface with smaller 1.69 inch frame components without requiring adapters or modifications.
4Ease of operation
If frame-type systems are used, then ease of erection is improved, but load-carrying capacity is reduced for industrial applications
Solution Approach 1:
The support post with variable diameter sections serves multiple functions: it provides the high load-carrying capacity of large-diameter tubes for industrial applications, while its reduced-diameter connection segments enable compatibility with easier-to-erect frame-type systems. This multi-functionality allows the system to achieve both high strength and ease of erection.
Data Source
AI summary
A modified scaffold support post includes areas of reduced diameter, intermediate the length of the support post, having connecting rosettes secured to these reduced diameter areas. Preferably the areas of reduced diameter correspond to diameter of support tubes used as uprights in scaffold frames in North America (approximately 1.69 inches in outer diameter). Preferably the areas of reduced diameter are formed by swaging a tube of a larger diameter, typically approximately 1.90 inches. The modified support post is advantageously used with scaffold frames with connecting rosettes appropriately positioned on the uprights of the scaffold frames.