Cantilevered Pergola Bracket Assembly Without Ground Support Posts
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Solution Overview
Problem
Conventional pergolas and trellises require ground-level support posts that occupy space and disrupt the continuity of open areas, making them unsuitable for certain applications.
Innovation Solution
A bracket system that attaches to existing roof rafters, allowing pergola beams to be cantilevered horizontally without ground-level support, using a mounting assembly, support assembly, and connecting assembly to secure the beams to the roof rafters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If conventional pergolas use ground-level support posts, then structural stability is achieved, but space continuity is disrupted and ground space is occupied
Solution Approach 1:
The invention extracts and removes the ground-level support posts from the pergola structure, transferring the support function to the roof rafters of the existing structure. This eliminates the need for ground occupation while maintaining structural stability through the bracket system that connects pergola beams directly to the roof structure.
Solution Approach 2:
The support function is shifted from the horizontal ground plane to the vertical roof structure. By mounting brackets to the roof rafters and cantilevering beams horizontally from there, the design moves the support basis to a different spatial dimension (vertical attachment point) rather than relying on ground-level vertical posts.
2Area of stationary object
If pergola beams are cantilevered from roof rafters, then ground space is preserved and space continuity is maintained, but structural complexity increases due to the bracket system
Solution Approach 1:
The bracket system is divided into distinct functional segments: a mounting assembly that attaches to the rafter, a support assembly that holds the pergola beam, and a connecting assembly that links them. This segmentation allows each component to be optimized independently and simplifies installation while achieving the cantilevered effect.
Solution Approach 2:
The bracket system is designed as a universal solution that can be attached to standard roof rafters and support various pergola beam configurations. The mounting assembly provides multi-functional capability by securing to the rafter structure while simultaneously providing the attachment point for the support assembly, reducing overall system complexity.
Data Source
AI summary
A bracket system, for suspending pergola beams from an existing structure, the existing structure having a vertical wall and roof rafters that each have a rafter top and a rafter end that extends beyond the vertical wall over a ground surface, each of the pergola beams having a supported end, including a plurality of brackets. Each bracket having a mounting assembly for attaching to one of the rafters, a support assembly for attaching the support end of one of the pergola beams, and a connecting assembly that suspends the support assembly from the mounting assembly. The pergola beams extend over the ground surface, away from the existing structure, supported only by the bracket at the support end and without any vertical supports.