Ball Joint Shim Mounting for Precise Suspension Height Tuning

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Solution Overview

Problem

Existing vehicle suspension systems lack the ability to finely tune suspension geometry, particularly in the vertical direction, which is crucial for precise alignment and performance under varying road conditions, especially in racing environments where consistent performance is required.

Innovation Solution

The use of a ball joint mounting apparatus with hollow cylindrical spacer shims allows for adjustable suspension height by rearranging the shims, maintaining consistent torque and material strength, enabling complex fine-tuning of suspension geometry, including camber and ride height, using standard components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a tapered stud is used to control ball joint height, then height adjustment is achieved, but the distance between base and distal end changes affecting torque and strength properties

Engineering Contradiction:
Improvesuspension height controlVSAvoidball assembly torque consistency
Core Design Contradiction:
Manufacturing precisionVSStrength

Solution Approach 1:

The ball assembly is segmented into distinct components: a stud with fixed base-to-distal-end distance, and separate spacer shims. This segmentation allows height adjustment through shim selection while keeping the stud's structural integrity and torque properties constant.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Spacer shims are introduced as intermediary elements between the stud and the mounting surface. These shims mediate the height adjustment function without requiring changes to the stud's dimensions, thereby preserving the stud's torque and strength characteristics.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Manufacturing precision

If suspension height is adjusted by changing ball joint position, then fine-tuning of suspension geometry is achieved, but the structural integrity of the ball assembly may be compromised

Engineering Contradiction:
Improvesuspension geometry tuningVSAvoidball assembly structural integrity
Core Design Contradiction:
Manufacturing precisionVSReliability

Solution Approach 1:

By separating the adjustment function (shims) from the structural function (stud), the design maintains structural integrity while enabling precise geometry tuning. The stud remains a single-piece component with consistent material properties throughout.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The spacer shims serve as sacrificial, replaceable components that can be easily swapped to achieve different heights. This allows precise tuning without risking damage to the more expensive and critical ball assembly stud.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Adaptability or versatility

If a single ball assembly is used for multiple height settings, then component standardization is achieved, but the ability to fine-tune suspension geometry is limited

Engineering Contradiction:
Improvesuspension height adjustabilityVSAvoidmounting configuration
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The stud design provides universal mounting capability across multiple height settings. A single stud design works with various shim combinations, making the ball assembly versatile for different suspension configurations without requiring multiple specialized studs.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The mounting configuration becomes dynamic and adjustable through shim selection. The system can be easily reconfigured for different heights by simply changing the shim package, providing adaptability without permanent modifications or complex adjustment mechanisms.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS11827070B2Vehicle ball joint adjustable mounting apparatus
Publication Date: 2023.11.28 MAVERICK UNDERCAR PERFORMANCE INC
  • US11827070B2 patent drawing
  • US11827070B2 patent drawing
  • US11827070B2 patent drawing

AI summary

A mounting apparatus for vehicle suspension ball joints that are firmly affixed for operation, are easily adjustable in a generally vertical direction for precise tuning of suspension geometry for dynamic performance in multiple axes using an array of cylindrical shims tuned to match fastener distance and height with a socket that has mounting bolts that engage a scalloped cap.