Floating Drag Element Fastening Arrangement
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Solution Overview
Problem
Existing fastening arrangements for components with tolerance compensation are complex and difficult to assemble due to misalignment and orientation issues during the insertion of fastening screws.
Innovation Solution
A fastening arrangement featuring a two-piece adjusting element with a drag element and thread element, allowing radial, lateral, and angular compensation movements, enabling automatic tolerance compensation and simplified assembly by accommodating misaligned fastening screws through a floating mount and conical inner channel design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional fastening arrangement with drag section is used, then tolerance compensation is achieved, but assembly complexity increases due to misalignment and orientation issues during fastening screw insertion
Solution Approach 1:
The adjusting element is divided into two separate components: a thread element and a drag element. The thread element receives the fastening screw while the drag element provides the drag connection to the component. This segmentation allows each element to be optimized independently and simplifies assembly by eliminating alignment issues between integrated components.
Solution Approach 2:
The thread element acts as an intermediary between the fastening screw and the drag element. It receives the fastening screw and transmits rotational motion to the drag element through threaded engagement, while allowing the drag element to float radially and laterally within the thread element's inner channel.
2Ease of manufacture
If the adjusting element is constructed as an integral piece, then manufacturing is simplified, but assembly difficulty increases due to misalignment compensation requirements
Solution Approach 1:
The adjusting element is segmented into a thread element and a drag element that can be manufactured separately and then assembled. The drag element is disposed floating within the inner channel of the thread element, allowing radial and lateral compensation movements during assembly without requiring precise alignment.
3Adaptability or versatility
If the fastening screw is inserted with misalignment, then assembly flexibility is improved, but fastening reliability deteriorates due to potential jamming
Solution Approach 1:
The drag element is designed to float within the inner channel of the thread element, enabling dynamic radial and lateral compensation movements during fastening screw insertion. This dynamic adjustment capability allows the system to accommodate misaligned fastening screws without jamming, maintaining both assembly flexibility and fastening reliability.
Solution Approach 2:
The inner channel of the thread element is designed with specific dimensional parameters that allow the drag element to move radially and laterally within defined ranges. These parameter changes enable the system to accommodate angular and positional deviations of the fastening screw while maintaining reliable fastening.
4Stability of the object's composition
If the drag element is fixed rigidly within the thread element, then structural stability is improved, but tolerance compensation capability deteriorates
Solution Approach 1:
The drag element is designed to float within the inner channel of the thread element rather than being rigidly fixed. This floating mounting enables the drag element to perform radial and lateral compensation movements relative to the thread element's longitudinal axis, maintaining tolerance compensation capability while the threaded connection provides structural stability during rotation.
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 secure fastening of components with automatic tolerance compensation, allowing for accurate alignment and rotation of the fastening screw, even with initial misalignment, thereby simplifying the assembly process and maintaining effective clamping force.
Implementation Method 1
a drag element (20) disposed in a rotationally fixed and floating manner inside a thread element (30)
Implementation Method 2
a fastening screw (40) can be inserted through an opening (35) in the receiving element (10) and the adjusting element (20, 30) and can be screwed into the receiving element (10) via a second thread pair (42, 52)
Data Source
AI summary
The invention relates to a fastening arrangement for fastening a component B to a component A with automatic compensation of tolerances with a spacing (S) between the component B and the component A, which comprises the following features: a.) a receiving element (10) and an adjusting element (20, 30) which can be screwed to the receiving element (10) via a first thread pair (12, 32) having a first pitch direction, while b.) a fastening screw (40) can be inserted through an opening in the receiving element (10) and adjusting element (20, 30) which screw can be screwed into the receiving element (10) via a second thread pair (42, 52) having a second pitch direction opposite to the first and can be connected to the adjusting element (20, 30) by a releasable drag connection (24) in order to co-rotate the adjusting element (20, 30) during the rotation of the fastening screw (40) and thereby move it into contact with the component B, and wherein c.) the adjusting element (20, 30) comprises a drag element (20) which is arranged in a rotationally fixed and floating manner inside a thread element (30), thus making it possible to compensate for a misalignment of the fastening screw (40) during insertion into the adjusting element (20, 30).