Adjustable Vibration Damper Protective Tube for Universal Fit

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Solution Overview

Problem

Existing vibration damper protective tubes are not universally suitable for different types of vibration dampers, requiring specific designs for each application, which increases production complexity and costs.

Innovation Solution

A tubular body with adjustable inner contour, formed by overlapping ends at separation locations, allowing for variable circumference adjustment to fit different damper components, and secured with locking mechanisms for precise adaptation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a protective tube is designed with a fixed inner contour for a specific vibration damper application, then the protection function is optimized for that specific application, but the tube cannot be universally applied to different vibration damper types

Engineering Contradiction:
Improveapplicability to different vibration dampersVSAvoidproduction complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The protective tube incorporates an adjustable inner contour that can be dynamically modified to match different outer contours of damper tubes. This allows a single protective tube design to adapt to multiple vibration damper types, achieving universal applicability without requiring multiple specialized designs.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The invention enables changing the inner contour parameters of the protective tube to match different application requirements. By adjusting the inner contour to match the outer contour of different damper tubes, the protective tube can be universally applied across various vibration damper types while maintaining optimal protection functionality.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If separate protective tube designs are created for each vibration damper type, then optimal protection is achieved for each specific application, but production costs and complexity increase

Engineering Contradiction:
Improveprotection functionVSAvoidproduction complexity and costs
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The protective tube is designed with adjustable characteristics that enable it to serve multiple functions across different vibration damper applications. A single protective tube design can protect different damper tube types by adjusting its inner contour, eliminating the need for multiple specialized designs and reducing production complexity.

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

Solution Approach 2:

The adjustable inner contour allows the protective tube to dynamically adapt to different damper tube geometries, maintaining reliable protection functionality across various applications without requiring separate designs for each case.

Inventive Principle:
Principle #15Dynamics

3Ease of manufacture

If a protective tube has a fixed design, then manufacturing is simple, but it requires specific designs for each application which increases overall production complexity

Engineering Contradiction:
Improveindividual tube manufacturingVSAvoidapplicability to different dampers
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The protective tube incorporates adjustable features that allow modification of the inner contour while maintaining manufacturing simplicity. This dynamic capability enables a single manufacturing process to produce tubes suitable for different applications, combining ease of manufacture with adaptability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The invention allows changing key parameters of the protective tube design, particularly the inner contour, to match different application requirements. This parameter adjustability enables universal applicability without fundamentally complicating the manufacturing process.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS20260009445A1Vibration damper protective tube
Publication Date: 2026.01.08 ZF FRIEDRICHSHAFEN AG
  • US20260009445A1 patent drawing
  • US20260009445A1 patent drawing
  • US20260009445A1 patent drawing

AI summary

A vibration damper protective tube comprising a tubular body that surrounds an inner region to be shielded, for which purpose the body radially outwardly bounds the inner region in cross section with an inner contour. The body has, in cross section, two respective open ends that overlap one another at at least one separation location in that the one respective end is inserted to lie over the other respective end in circumferential direction and radially inwardly thereof, and which are displaceable relative to one another. Further, a respective degree of the respective overlapping of the two respective ends is adjustable during the displacement of the latter relative to one another and, therefore, a circumference of the inner contour can be changed.