Roof Hook Mounting for One-Handed Carrier Profile Alignment
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Solution Overview
Problem
Existing fastening devices for solar modules on pitched roofs are cumbersome and difficult to handle, especially at great heights, due to the laborious process of inserting hexagonal screws and securing stop nuts, which complicates the installation of carrier profiles.
Innovation Solution
A fastening device with a holding element featuring stop elements and a spring element that securely holds the carrier profile in place, allowing for easy alignment and secure fastening without the need for manual insertion of screws into grooves, enabling one-handed operation on steep roofs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional hexagonal screws and stop nuts are used for fastening carrier profiles, then secure fastening is achieved, but the installation process becomes time-consuming and uncomfortable for users working at height on pitched roofs
Solution Approach 1:
The fastening device is pre-assembled with the hexagonal screw already inserted through the fixing section and the stop nut pre-positioned on the screw. This preliminary assembly eliminates the need for users to manually thread screws and secure nuts during installation at height, significantly improving ease of operation while maintaining secure fastening through the pre-configured components
2Manufacturing precision
If the carrier profile is held temporarily during fixation, then proper alignment can be achieved, but handling becomes difficult on pitched roofs at great heights
Solution Approach 1:
The holding element with protruding stop elements serves itself by automatically engaging with the carrier profile to provide temporary support and alignment. The stop elements protruding from the holding element create a self-aligning mechanism that guides the carrier profile into position without requiring manual holding, enabling one-handed operation for users working at height on pitched roofs
3Ease of manufacture
If a through-opening design is used for the fastening screw, then screw insertion is simplified, but the carrier profile still requires temporary holding until fixed
Solution Approach 1:
The invention merges the fastening function and the temporary holding function into a single integrated holding element. The holding element with its protruding stop elements combines the alignment/support function with the fastening structure, eliminating the need for separate temporary holding operations while maintaining the through-opening design for simplified screw insertion
Data Source
AI summary
The device has a roof hook (12) exhibiting a fixing section (14) with a fastening unit (21) for a supporting section (1), where the fixing section is arranged parallel to a fastening plate (13). The fastening unit has a fastening screw and a retaining unit that includes a retaining section for the supporting section and a through hole for the fastening screw. The retaining unit has two projections protruding from a side of the retaining unit, where the projections encompass the fixing section of the roof hook.