Rotating Chain Tensioner Connection to Prevent Torsion Kickback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Textile chains used in tensioning devices often experience torsions during the tensioning process, leading to reduced clamping path efficiency and a risk of injury from 'kickback' of the ratchet, which is not significantly addressed by existing solutions like rotatable connecting elements.
Innovation Solution
A tensioning device design where the connecting element is rotatably received in a connection block with a pivot bearing, ensuring that torsions are avoided by allowing the connecting element to rotate about the longitudinal axis of the clamping nut or threaded bolt, preventing any torsional forces from entering the clamping device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If textile chains are used as tensioning devices, then they provide flexibility and ease of handling, but torsions occur during tensioning leading to reduced efficiency and safety risks
Solution Approach 1:
The connecting element is designed to rotate freely about the longitudinal axis during the tensioning process. This dynamic rotation capability allows the textile chain to accommodate torsional forces without transmitting them to the ratchet mechanism, preventing kickback while maintaining ease of handling.
Solution Approach 2:
The rotatable connecting element preemptively counteracts torsional forces by rotating in the direction of twist, preventing these forces from being transmitted to the ratchet. This preliminary anti-action eliminates the root cause of kickback before it can occur.
2Reliability
If a rotatable connecting element is used to prevent torsions, then safety is improved, but the device complexity increases
Solution Approach 1:
The connecting element serves multiple functions: it connects the chain to the tensioning nut, allows rotational movement to prevent torsions, and maintains structural integrity under load. This multi-functionality achieves safety without requiring additional separate components.
Solution Approach 2:
The rotation capability is integrated directly into the connecting element itself, merging the connection function with the torsion-prevention function in a single component rather than requiring separate mechanisms.
3Stability of the object's composition
If the connecting element is firmly fixed to prevent rotation, then structural stability is improved, but torsions are transmitted causing kickback and safety hazards
Solution Approach 1:
The connecting element is designed with rotational freedom about the longitudinal axis, allowing it to dynamically adapt to torsional forces during tensioning. This dynamic design maintains structural stability while preventing harmful torsion transmission to the ratchet mechanism.
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
This design effectively prevents torsions and 'kickback' during the tensioning process, maintaining the preload force and ensuring operator safety, while providing the necessary clamping force for secure load fixation on transport surfaces.
Implementation Method 1
the connecting block is equipped with a bearing or pivot bearing in its interior
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention relates to a tensioning device for tensioning chains (1), straps, ropes or similar tensioning means (1), comprising at least one tubular tensioning nut (2) and at least one threaded bolt (3) that is inserted into the tensioning nut (2) and is interacting with it, wherein the tensioning nut (2) and/or the threaded bolt (3) is/are equipped with a connection element (4) at the end, in particular for coupling to the tensioning means (1), and wherein the connection element (4) is movably connected to the tensioning nut (2) and/or the threaded bolt (3).