Pole-Mounted Hub and Arm Assembly for Substantial Weight Support
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Solution Overview
Problem
Existing pole systems for mounting objects lack stability and are unable to support substantial weights, limiting their use for supporting items like bird feeders and containers.
Innovation Solution
A hub and arm assembly with a reinforced outer wall and transverse channels, featuring a supporting member with a vertical segment fitting within the channel and a downwardly extending segment to abut the reinforced area, providing enhanced structural support and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a transverse bar is used for applying rotational force to the pole, then the pole can be mounted and rotated, but the system lacks stability when transverse force is applied
Solution Approach 1:
The hub is segmented into multiple transverse walls extending between the inner and outer walls, creating multiple channels that provide structural reinforcement. This segmentation allows the hub to resist transverse forces more effectively while maintaining a manageable structural complexity through modular wall design.
Solution Approach 2:
The outer wall includes reinforced areas with increased thickness at specific locations where support arms attach. This local reinforcement provides enhanced stability and load-bearing capacity at critical points without requiring the entire hub structure to be overly complex or heavy.
2Strength
If a simple hub structure is used, then the device is easy to manufacture, but it cannot support substantial weight
Solution Approach 1:
The hub incorporates multiple transverse walls that segment the internal space into channels, creating a truss-like structure that efficiently distributes and supports substantial weights. This segmented approach provides high strength-to-complexity ratio by using thin-walled sections arranged in load-bearing configurations.
Solution Approach 2:
The outer wall features localized reinforced areas with greater thickness at specific attachment points for support arms. This allows the hub to support substantial weights through strategic reinforcement rather than uniform thickening, maintaining ease of manufacture while achieving high load-bearing capacity.
3Strength
If reinforced areas with increased thickness are added to the outer wall, then the hub can support substantial weight, but the material usage increases
Solution Approach 1:
The outer wall incorporates reinforced areas with increased thickness only at specific locations where support arms attach and load is applied. This localized reinforcement provides the necessary weight support capacity while minimizing overall material usage, as the majority of the hub structure can use thinner, more material-efficient wall sections.
Solution Approach 2:
The hub uses multiple thin transverse walls arranged in a segmented pattern to create load-bearing channels. This segmentation provides efficient structural support with minimal material, as the distributed wall structure creates truss-like strength without requiring large amounts of material concentrated in single thick sections.
Data Source
AI summary
A hub and arm assembly for mounting on a pole, the assembly including a hub having an inner wall and an outer wall with at least one reinforced area formed thereon, the inner wall having a bottom surface, a plurality of transversely extending walls extending between the outer wall and the inner wall with at least one channel being defined therebetween, a supporting member having a vertical segment sized to fit within the channel, and a support arm extending outwardly from the vertical segment, the support arm having a downwardly extending segment designed to abut the reinforced portion of the outer wall.