Tolerance Compensation Assembly With Floating Dragging Unit
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Solution Overview
Problem
Existing tolerance compensation arrangements face challenges with precision requirements due to non-floating dragging sections and material limitations, particularly with plastic components that deform under higher forces, limiting their strength and application range.
Innovation Solution
A tolerance compensation arrangement featuring a base element with metal components, including a threaded sleeve and dragging unit, allowing for automatic tolerance compensation through a releasable dragging connection, which increases strength and application range while maintaining cost-effectiveness by combining metal and plastic materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If plastic components are used in tolerance compensation arrangements, then cost-effectiveness is improved, but strength and durability deteriorate under higher forces
Solution Approach 1:
The patent employs a composite construction combining plastic and metal materials within a single tolerance compensation arrangement. The plastic base element provides cost-effectiveness and ease of manufacture, while integrated metal components (threaded sleeve, dragging unit, fastening screw) provide the necessary strength and durability under higher forces. This hybrid approach resolves the contradiction by allowing each material to contribute its advantageous properties in the appropriate functional areas.
2Device complexity
If non-floating dragging sections are used, then device complexity is reduced, but manufacturing precision requirements increase
Solution Approach 1:
The patent implements a floating dragging section that can dynamically adjust its position and orientation during operation. The dragging unit is designed to float within the threaded sleeve, allowing it to self-align and compensate for misalignments between components. This dynamic capability reduces manufacturing precision requirements while maintaining functional performance, resolving the contradiction between device complexity and precision requirements.
3Strength
If metal components are integrated into the base element, then strength is improved, but device complexity increases
Solution Approach 1:
The patent merges metal components (threaded sleeve, dragging unit, fastening screw) with the plastic base element into an integrated assembly. The metal threaded sleeve is screwed into the plastic base element, and the metal dragging unit is positioned within the sleeve, creating a unified structure that combines the strength benefits of metal with the cost benefits of plastic. This merging approach improves strength while managing device complexity through functional integration.
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 enhanced strength and a broader application range compared to pure plastic arrangements, enabling stable metal-metal connections and compensating for misalignments, while being cost-effective and manufacturable with improved durability under varying forces.
Implementation Method 1
the outer thread forms a first thread pairing of a first thread direction with the first inner thread of the first metal element of the base element, while a fastening screw, which is insertable through an opening of the base unit and the adjustment unit, can be screwed in the second inner thread of the second metal element of the base element
Implementation Method 2
a fastening screw... can be connected to the adjustment unit via the dragging unit through a releasable dragging connection so that, during the rotation of the fastening screw, the adjustment unit co-rotates
Data Source
AI summary
A tolerance compensation arrangement for fastening first and second components with automatic or self-acting compensation of tolerances in the spacing between the components. The arrangement includes a base element having first and second metal elements with inner threads. An adjustment unit includes a threaded sleeve with an outer thread and a dragging unit at least partially arranged in the threaded sleeve. The outer thread forms a first thread pairing of a first thread direction with the inner thread of the first metal element. A fastening screw can be screwed into the inner thread of the second metal element via a second thread pairing of a second thread direction opposite to the first thread direction. The fastening screw can be connected to the adjustment unit via the dragging unit so that, during the rotation of the fastening screw, the adjustment unit co-rotates and is moved into abutment with the first component.