Roofing Rafter Holder Longitudinal Displacement Mechanism
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Solution Overview
Problem
Existing roofing systems, such as patio roofs, face limitations in adjusting the angle of rafters and roof panels due to structural constraints, requiring a system that allows for flexible angle adjustments without compromising security or requiring separate sealing adaptations.
Innovation Solution
A roofing device featuring a longitudinal carrier profile with a bearing profile section and a rafter holder that can be longitudinally displaced to create a form fit, enabling adjustable rafter angles and accommodating various structural conditions without structural changes, using a gripping section that corresponds to the bearing profile section for secure mounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a sealing flange is used to secure the rafter bracket, then the rafter can be mounted on the wall connection profile, but the angle of attack of the rafter is restricted to a minimum inclination
Solution Approach 1:
The rafter bracket fitting is designed with a gripping section that can be longitudinally displaced along the bearing profile section to achieve different angles of attack. The form fit between the gripping section and bearing profile section is maintained through this displacement, allowing dynamic adjustment of the rafter angle while preserving secure mounting. This resolves the contradiction by enabling angle variability without compromising the reliability of the sealing flange connection.
2Adaptability or versatility
If the rafter bracket fitting is pivoted to an angle position, then the angle of attack can be adjusted, but the web or seal must be redesigned or adapted for the desired angle
Solution Approach 1:
The gripping section is designed with a universal form fit that accommodates the bearing profile section across multiple angles of attack. This universal connection design eliminates the need to redesign or adapt sealing components for different angles, as the same gripping section maintains secure engagement throughout the range of motion. The sealing flange remains functional without requiring angle-specific modifications.
3Ease of manufacture
If standard sized prefabricated parts are used, then production is simplified, but the angle of attack cannot be varied to react to structural conditions
Solution Approach 1:
The connection system allows the rafter bracket fitting to be displaced longitudinally along the bearing profile section to achieve desired angles of attack. This dynamic adjustment capability is integrated into the standard prefabricated components, enabling them to adapt to various structural conditions during assembly without requiring custom-manufactured parts. The form fit design maintains structural integrity while providing flexibility.
4Loss of substance
If a closed profile is used for the wall connection profile, then material savings are achieved, but the bearing profile section must be designed to accommodate longitudinal displacement
Solution Approach 1:
The bearing profile section is designed with a localized recess that accommodates the gripping section of the rafter bracket fitting. This local modification to the closed profile enables longitudinal displacement and form fit engagement without requiring changes to the overall closed profile structure. The recess provides the necessary functionality while maintaining the material efficiency of the closed profile design.
Data Source
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AI summary
The present invention relates to a roofing device, in particular a terrace roof, comprising: a longitudinal beam profile designed for supporting a rafter holder and comprising a bearing profile section; and a rafter holder for supporting a rafter on the longitudinal beam profile, wherein the rafter holder has a gripping section corresponding to the bearing profile section, which is designed for positive locking on the bearing profile section, wherein the longitudinal beam profile has an insertion section locally limited in the longitudinal direction, on which the bearing profile section is recessed in such a way that it can be inserted into the gripping section of the rafter holder for assembly, and wherein the gripping section is designed to be longitudinally displaceable on the bearing profile section and a positive locking connection between the gripping section and the bearing profile section can be established by longitudinal displacement.The present invention further relates to a method for manufacturing such a roofing device.