Stabilizer Elastomer Joint Conical Receptacle Assembly

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Solution Overview

Problem

Existing stabilizer systems for motor vehicles face challenges in assembly due to the rigidity of elastomeric joints, which prevents easy insertion and fastening of fastening pins, and generate noise due to vibration transmission.

Innovation Solution

A stabilizer system with elastomer joints featuring a conical receptacle and counterpart design for fastening pins, allowing for easier assembly and reduced noise by preventing pin tilting and facilitating tilted insertion, and a two-part design with a cylindrical receptacle for secure fastening.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If elastomeric joints are used to reduce noise, then noise transmission is reduced, but assembly difficulty increases due to rigidity

Engineering Contradiction:

Improvenoise transmissionVSAvoidassembly difficulty

Core Design Contradiction:

Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The elastomeric joint is divided into two separate components: a receiving bushing with a conical receptacle and a fastening pin with a conical counterpart. This segmentation allows the fastening pin to be inserted into the counter bearing before the rigid elastomeric joint is fully assembled, enabling tilted insertion and simplifying assembly while maintaining the noise-reducing elastomeric material.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The conical receptacle in the receiving bushing acts as an intermediary that guides and facilitates the insertion of the conical fastening pin. The conical geometry provides a tapered pathway that enables the rigid fastening pin to be inserted at an angle into the rigid elastomeric joint without requiring deflection of the elastomeric material itself.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If ball joints are used for easy assembly, then assembly is simplified, but noise generation increases due to vibration transmission

Engineering Contradiction:

Improveassembly simplicityVSAvoidnoise generation

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The invention changes the material parameter from rigid metal (ball joints) to elastomeric material, which has damping properties that reduce vibration transmission and noise generation. The conical receptacle and fastening pin design compensates for the increased rigidity of the elastomeric material by providing a guided insertion path.

Inventive Principle:

Principle #35Parameter changes

3Strength

If rigid fastening pins are used in elastomeric joints, then secure fastening is achieved, but tilted insertion during assembly is prevented

Engineering Contradiction:

Improvefastening securityVSAvoidtilted insertion capability

Core Design Contradiction:

StrengthVSEase of operation

Solution Approach 1:

The conical receptacle and conical counterpart geometry provides a curved, tapered pathway that guides the fastening pin during insertion. The conical shape allows the rigid fastening pin to be inserted at an angle by progressively engaging the tapered surfaces, enabling tilted insertion while maintaining secure fastening once fully inserted.

Inventive Principle:

Principle #14Spheroidality (Curvature)

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

Simplifies assembly and reduces noise transmission by allowing easy and secure fastening of stabilizer struts with elastomer joints, preventing vibration-induced noise and enhancing operational quietness.

Implementation Method 1

rubber bearings or elastomer bearings can be used, for example, with which the aforementioned noise problem can be effectively countered

Methodology Applied

Scientific EffectVibration damping: Damping

Implementation Method 2

an elastomeric joint for chassis parts of motor vehicles has a housing in which an elastomer body is arranged

Methodology Applied

Scientific EffectElastomer vibration absorption: Viscoelasticity

Implementation Method 3

The receiving bushing has at least one at least partially conical receptacle for receiving the fastening pin. The fastening pin has at least one conical fastening attachment, with the fastening attachment being accommodated in a corresponding counter bearing

Methodology Applied

Scientific EffectConical geometry mechanical advantage: Wedge

Data Source

PatentEP3074251B1Stabilizer system for a motor vehicle, method of mounting a stabilizer system, and chassis with stabilizer system

Publication Date: 2019.10.02 THK RHYTHM AUTOMOTIVE GMBH

Figure 1a~1b
Figure 2a~2b
Figure 3a~3b

AI summary

The present invention relates to a stabilizer system (100) for a motor vehicle, in particular for a utility vehicle, with at least one stabilizer bar (10), at least one elastomer joint (20), at least one receiving bushing (30) and at least one fastening pin (40), wherein the elastomer joint (20) is arranged in the region of one end (12) of the stabilizer bar (10), and wherein the receiving bushing (30) in which the fastening pin (40) is fitted is arranged in the interior of the elastomer joint (20). Furthermore, the present invention relates to a method for installing a stabilizer system (100) and to a chassis of a motor vehicle with at least one stabilizer system (100).