Split Roof Hook Structure for High-Load Solar Mounting
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Solution Overview
Problem
Existing roof hooks for solar systems face challenges in achieving high load-bearing capacity while minimizing production costs, often requiring reinforcing ribs or webs that increase manufacturing complexity and costs.
Innovation Solution
A split roof hook design utilizing a cut-to-length extruded aluminum angle profile for the foot part, with a profile wall forming an obtuse angle to support the hook part, allowing for screw connections and optional adjustments through oblong holes or slots, eliminating the need for reinforcing ribs and enabling cost-effective production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If reinforcing ribs or webs are added to the foot part, then load-bearing capacity is improved, but production costs and manufacturing complexity increase
Solution Approach 1:
The foot part is divided into a first section and a second section at an obtuse angle to each other, with the connection points for the roof substructure arranged on the first section and the support surface for the hook part on the second section. This segmentation creates inherent structural strength without requiring additional reinforcing ribs or webs, thereby maintaining load-bearing capacity while reducing manufacturing complexity.
Solution Approach 2:
The foot part utilizes a spatial configuration where the first and second sections are arranged at an obtuse angle, creating a three-dimensional load distribution structure. This dimensional arrangement allows forces to be distributed more effectively through space rather than requiring additional reinforcing elements in the same plane, reducing manufacturing complexity while maintaining strength.
2Ease of manufacture
If the foot part is designed as a simple angle profile, then production costs decrease, but load-bearing capacity may be insufficient
Solution Approach 1:
The angle profile is segmented into two functional sections arranged at an obtuse angle, where the first section provides connection points for the roof substructure and the second section provides the support surface for the hook part. This segmentation allows the simple angle profile to achieve adequate load-bearing capacity through its geometric configuration alone, eliminating the need for complex reinforcing features.
Solution Approach 2:
The foot part is made from aluminum or aluminum alloy material, utilizing the high strength-to-weight ratio properties of these materials. This allows the simple angle profile design to achieve sufficient load-bearing capacity without requiring additional reinforcing ribs or webs, thereby reducing production costs while maintaining structural integrity.
Data Source
AI summary
The invention relates to a roof hook having a split design, comprising a base part (1) and a hook part (2) which can be connected to the base part (1) and which has a connection (6) at the end (4) for attaching a structural unit. The base part (1) is a section (X) of an angle profile cut to length, the one angle leg (8) of which comprises connections (7) for establishing the connection to the roof substructure. On the angle inside, a profile wall (10) running in the profile longitudinal direction is disposed between the two angle legs (8, 9), said profile wall together with the angle leg region of the connections (7), forming an obtuse angle (a), wherein said profile wall serves as a support surface for the end (3) of the hook part (2) and can be connected to the end (3) of the hook part (2).