Compensating Sleeve and Blind Rivet Joint Against Loosening

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Solution Overview

Problem

Existing attachment arrangements with automated tolerance compensation systems are prone to loosening due to mechanical stresses, leading to reduced connection strength and aesthetic issues when reconnecting components.

Innovation Solution

A connection method using a compensating sleeve with a blind rivet for non-automated tolerance compensation, where the blind rivet is not detachable, providing a secure and stable connection by forming a frictional or positive connection between components, reducing the impact of mechanical stresses.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If automated tolerance compensation systems are used with fastening bolts, then the connection can be detached and reattached, but the fastening bolts loosen due to mechanical stresses such as vibrations

Engineering Contradiction:
ImprovedetachabilityVSAvoidconnection stability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent extracts the detachable fastening bolt from the tolerance compensation system and replaces it with a permanently fixed blind rivet. The blind rivet is inserted through the compensating sleeve and deformed to create a permanent mechanical lock, eliminating the loosening problem while maintaining the tolerance compensation functionality through the rotatable compensating sleeve mechanism.

Inventive Principle:
Principle #2Taking out (Extraction)

2Extent of automation

If fastening bolts are used for connection, then automated tolerance compensation can be achieved, but the connection strength is reduced when components are reconnected after loosening

Engineering Contradiction:
Improveautomated tolerance compensationVSAvoidconnection strength
Core Design Contradiction:
Extent of automationVSStrength

Solution Approach 1:

The patent removes the fastening bolt from the system and replaces it with a blind rivet that creates a permanent, high-strength connection. The blind rivet's deformation mechanism provides superior connection strength compared to bolts, while the compensating sleeve retains the automated tolerance compensation capability through its rotational adjustment mechanism.

Inventive Principle:
Principle #2Taking out (Extraction)

3Adaptability or versatility

If fastening bolts are used, then the connection can be detached, but aesthetic appearance deteriorates after reconnection due to tolerances

Engineering Contradiction:
ImprovedetachabilityVSAvoidaesthetic appearance
Core Design Contradiction:
Adaptability or versatilityVSShape

Solution Approach 1:

The patent eliminates the fastening bolt and uses a blind rivet with a compensating sleeve that maintains precise alignment and positioning. The compensating sleeve's rotational adjustment ensures that components remain tightly fitted with minimal visible gaps, preserving aesthetic appearance even though the connection is permanent and not easily detachable.

Inventive Principle:
Principle #2Taking out (Extraction)

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 a reliable and stable connection between components, resistant to mechanical stresses, with improved aesthetic appearance and strength by using a non-detachable blind rivet for tolerance compensation.

Implementation Method 1

forming a frictional or positive connection between components

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 2

a blind rivet which is not nondestructively detachable or releasable is attached in the through connection tube

Methodology Applied
Scientific EffectMechanical Fastener: Mechanical Fastener

Data Source

PatentUS11933348B2Connection between two components with tolerance compensation and a connecting method therefor
Publication Date: 2024.03.19 BOLLHOFF VERBINDUNGSTECHNIK GMBH
  • US11933348B2 patent drawing
  • US11933348B2 patent drawing
  • US11933348B2 patent drawing

AI summary

A connection between at least a first component A and a second component B with an attachment arrangement with tolerance compensation between the first component A and the second component B. The entire connection is fixated via a blind rivet which is not non-destructively detachable while a compensating sleeve spans a distance between the first component A and the second component B.