Tensioning Adapter Air Gap Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing connection adapters for tensioning devices and winding shafts of tarpaulins lack a secure, cost-effective mechanical connection that withstands high torsional stresses and is easy to produce, often requiring complex manufacturing processes and materials like stainless steel.
Innovation Solution
A connection adapter with a cylindrical engagement element spaced by an air gap from the cavity's peripheral wall, featuring retaining ribs for improved non-positive connection and potentially a safety rivet for secure assembly, made from aluminum alloy using high-pressure hot-forming and T6 heat treatment for enhanced mechanical properties and reduced material usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the engagement element is connected to the inside wall of the cavity by a trapezoidal profile section, then the mechanical connection is secure and can withstand torsional stresses, but the device complexity and manufacturing cost increase
Solution Approach 1:
The invention extracts the connecting web (trapezoidal profile section) from the design, creating an air gap between the engagement element and the cavity wall. This simplifies the structure while maintaining connection security through the cylindrical engagement element's direct fit within the cavity, eliminating the need for additional connecting features.
Solution Approach 2:
The invention segments the connection adapter into distinct functional parts: the cylindrical engagement element and the cavity, separated by an air gap. This segmentation allows each part to perform its specific function independently while maintaining overall structural integrity and reducing complexity.
2Strength
If stainless steel is used for the connection adapter, then the mechanical strength and durability are improved, but the production cost and material weight increase
Solution Approach 1:
The invention changes the material parameter from stainless steel to aluminum alloy, reducing both weight and cost. The cylindrical engagement element design compensates for aluminum's lower strength through optimized geometry and the secure fit within the cavity, maintaining adequate mechanical strength for the application.
Solution Approach 2:
The invention uses aluminum alloy as a lighter, more cost-effective material alternative to stainless steel. The design leverages the aluminum's properties while the cylindrical engagement element geometry provides the necessary mechanical strength and torsional resistance.
3Reliability
If a connecting web is used between the engagement element and the cavity wall, then the mechanical connection is secure, but the material usage and production cost increase
Solution Approach 1:
The invention removes the connecting web entirely, creating an air gap between the engagement element and the cavity wall. The connection security is maintained through the cylindrical engagement element's precise fit within the cavity, eliminating unnecessary material usage and reducing production costs.
4Quantity of substance
If the engagement element is cylindrical with an air gap, then the material usage is reduced and production cost decreases, but the mechanical connection security may be compromised
Solution Approach 1:
The invention changes the engagement element geometry to a cylindrical shape with an air gap, reducing material usage. The connection security is maintained through the precise fit of the cylindrical element within the cavity and the frictional forces generated during insertion and operation.
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 provides a secure, non-rotatable mechanical connection that withstands high torsional stresses, reduces production costs, and offers a lighter, more cost-effective alternative to stainless steel, while maintaining mechanical integrity and ease of machining.
Implementation Method 1
made from aluminum alloy using high-pressure hot-forming
Implementation Method 2
T6 heat treatment for enhanced mechanical properties
Data Source
Figure 1~2
Figure 3~6
AI summary
The invention relates to a connection adapter (1) for connecting a clamping device to a winding shaft of a winding element, in particular a tarpaulin, comprising a base body (2) which has a first connection section (3) which is configured for connection to an engagement element of the clamping device, and a second connection section (4) which is opposite the first connection section (3) and is configured for connection to the winding shaft, wherein the second connection section (4) has a cavity (40) laterally bounded by a circumferential wall (41) with a cavity base (42) into which cavity (40) an end of the winding shaft can be inserted and within which an engagement element (5) is integrally formed with the base body (2), which is shaped in such a way that it can engage positively in a round recess of the winding shaft extending from the outside to the inside, in particular comprising a longitudinal slot.wherein the engagement element (5) is cylindrical in shape, is arranged eccentrically within the cavity (40) of the second connection section (4) and spaced apart from the circumferential wall (41) of the cavity (40) by an air gap (45), and extends from the base (42) of the cavity preferably substantially over the entire height of the cavity (40).