Formwork Holding Head Anti-Rotation Hook Mechanism
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Solution Overview
Problem
Existing formwork support systems are prone to loosening or detachment due to vibrations and require cumbersome nail hole fixation, making them difficult to secure and handle.
Innovation Solution
A holding head with hook elements and an anti-rotation element that secures the formwork support against tilting and lifting, eliminating the need for nail holes and providing a simple, reliable locking mechanism through a combination of hook elements and an elastically deformable spring or pressure-based anti-rotation system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the formwork support is secured using nail holes in the prior art, then the support can be fixed to the holding head, but the connection can be weakened or loosened due to vibrations
Solution Approach 1:
The connection system is segmented into multiple functional elements: hook elements for primary attachment, anti-rotation element for preventing loosening, and chord element engagement for structural integration. This segmentation allows each element to perform its specific function optimally, with the anti-rotation element specifically addressing the vibration loosening problem while hook elements provide easy attachment
Solution Approach 2:
The anti-rotation element is pre-configured in the holding head to prevent rotation before vibrations can occur. By establishing this protective mechanism in advance, the connection is immune to vibration-induced loosening from the outset, eliminating the need for post-installation adjustments or reinforcements
2Stability of the object's composition
If four elongated stanchions are used to prevent tilting and twisting, then the formwork support is stabilized, but the arrangement makes handling more difficult and requires nail holes for fixation
Solution Approach 1:
The patent extracts the essential anti-tilting function from the complex four-stanchion arrangement and implements it through a simplified holding head design with hook elements positioned to naturally prevent tilting. This extraction removes unnecessary structural complexity while preserving the stabilizing function, making the support easier to handle and install without requiring additional fixation elements like nail holes
3Productivity
If the holding head is designed to be quickly attached without nail holes, then the installation is simplified, but the connection may be less secure against vibrations
Solution Approach 1:
The patent merges multiple functions into integrated components: the hook elements serve both as attachment mechanisms and anti-tilting devices, while the anti-rotation element combines vibration resistance with quick-release capability. This merging allows the connection to achieve both quick installation and vibration resistance without requiring separate systems for each function
Solution Approach 2:
The anti-rotation element is designed to automatically engage and prevent loosening without requiring additional fastening actions or tools. The holding head's geometry and the anti-rotation element's configuration work together to self-prevent vibration-induced loosening, maintaining reliability while preserving quick installation capabilities
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution ensures quick and secure attachment of the formwork support, resisting vibrations and environmental influences, and simplifies the installation process by providing a stable locking mechanism that prevents unwanted rotation and lifting.
Implementation Method 1
The spring element (39) can be elastically deformed. When the holding position is reached, the spring element snaps into the recess of the formwork support due to its inherent elasticity.
Implementation Method 2
the pressure body (45), which is a ball in the embodiment shown, is slidably mounted against the force of a bearing spring (not shown) in a direction essentially perpendicular to the main plane of the base element (28)
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Holding head (27) for connection with an end of a support element (2) for a formwork beam (3a), with a base element (28) for bearing against an outer surface (7") of the formwork beam (3a), with a hook element (29) for hooking with the formwork beam (3a) on each longitudinal side of the base element (28), wherein the hook element (29) on one longitudinal side of the base element (28) is arranged in the longitudinal direction (31) of the holding head (27) at a distance from the hook element (19) on the other longitudinal side of the base element (28), so that the formwork beam (3a) in the service state is rotatable relative to the holding head (27) between a holding position fixed to the hook elements (29) and a release position released from the hook elements (29), wherein the holding head (27) has at least one anti-rotation element (37) which, in the holding position, prevents rotation of the formwork beam (3a). counteracts the direction of the release positionSupport and formwork construction (1) .,