Umbrella Hub Assembly Mounting Bracket Design
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Solution Overview
Problem
Existing umbrella assemblies face challenges in providing a hub assembly and mounting bracket combination that is both easy to install or remove and capable of withstanding high wind gusts and other external forces, often sacrificing ease of installation for strength and rigidity.
Innovation Solution
The design incorporates a hub assembly with extended mounting regions, securing rings, mortise-tenon mounting brackets, and a rib center joint with stops, along with a rotatable fabric connector to enhance rigidity and ease of operation, allowing for secure attachment and detachment while withstanding high winds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional mounting brackets are used to secure the hub assembly, then the bracket can be firmly attached to withstand external forces, but the installation and replacement process becomes complex and time-consuming
Solution Approach 1:
The mounting bracket is divided into multiple components: a bracket body, a separate securing ring, and mounting screws. This segmentation allows the bracket body to be easily positioned and aligned with the hub assembly channel, while the securing ring provides the firm attachment through multiple screw points distributed around the bracket, resolving the contradiction between easy installation and strong attachment.
Solution Approach 2:
The channel in the hub assembly acts as an intermediary structure that guides and positions the mounting bracket during installation. The channel's geometry complements the bracket body shape, enabling easy placement and alignment before the securing ring is fastened, thus facilitating both ease of installation and firm attachment.
2Reliability
If the mounting bracket is firmly secured to the hub assembly, then the umbrella can withstand high wind gusts, but the bracket becomes difficult to remove and replace for maintenance
Solution Approach 1:
The mounting system is segmented into the bracket body, securing ring, and multiple mounting screws. This allows the bracket to be firmly secured during operation to withstand high wind gusts, while enabling easy removal by simply unscrewing the mounting screws and detaching the securing ring, facilitating maintenance and replacement without permanent attachment.
Solution Approach 2:
The mounting bracket system transitions from a static firm attachment to a dynamic removable connection. The securing ring with mounting screws provides reliable fixation during use, but can be quickly released when maintenance is needed, allowing the system to adapt between operational reliability and ease of repair requirements.
3Stability of the object's composition
If the hub assembly is designed with extended mounting regions and securing rings, then the structural rigidity is improved, but the device complexity increases
Solution Approach 1:
The channel structure in the hub assembly serves multiple functions: it provides the extended mounting region for bracket attachment, acts as a guide for positioning the bracket body, and serves as the securing path for the mounting screws. This multi-functionality achieves structural rigidity without proportionally increasing device complexity, as the same structural element performs multiple roles.
Solution Approach 2:
The mounting bracket is designed to nest within the channel structure of the hub assembly. The bracket body fits into the channel, and the securing ring encircles the bracket assembly, creating a nested configuration that provides structural rigidity while efficiently using space and minimizing overall complexity.
Data Source
AI summary
An umbrella assembly and various embodiments of hub assemblies which provide an umbrellas assembly which is easy to install or remove, is extremely rigid, and is capable of withstanding high wind gusts and other high external forces. A first hub assembly includes a mounting bracket having extended regions for mounting to a hub. A second hub assembly includes securing rings for securely binding mounting brackets to a hub. A third hub assembly includes a mortise-tenon mounting bracket. A fourth hub assembly includes securing rings for securely binding mortise-tenon mounting brackets to a hub. A rib center joint connector having stops is presented. A rotatable fabric connector having a plurality of curved surfaces on the head of the fabric connector is present.