Wrap Bracket Damper Assembly Vibration Damping

Solution Overview

Problem

Current clamps for securing elongated members like tubes, hoses, and cables face issues such as damage from improper assembly, noise, and wear due to clearance, and plastic straps lack strength and durability for high-temperature applications, while metal clamps are rigid and not adaptable.

Innovation Solution

A damper assembly with a split tubular grommet and tubular clamp design that includes an oblong projection and slot for secure engagement, allowing for elastic deformation and vibration damping, and a wrap bracket assembly with a grommet and wrap bracket that can be preassembled for easy installation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If metal clamps are used for rigid attachment, then strength and durability are improved, but adaptability and flexibility deteriorate

Engineering Contradiction:

Improveclamp strengthVSAvoidadaptability

Core Design Contradiction:

StrengthVSAdaptability or versatility

Solution Approach 1:

The clamp assembly combines a metal clamp body with a polymer liner, creating a composite structure that integrates the high strength of metal with the flexibility and adaptability of polymer material. The polymer liner conforms to the tube outer surface while the metal clamp provides rigid attachment strength.

Inventive Principle:

Principle #40Composite materials

2Adaptability or versatility

If plastic straps are used for flexible attachment, then adaptability is improved, but strength and durability deteriorate

Engineering Contradiction:

ImproveflexibilityVSAvoidsupport strength

Core Design Contradiction:

Adaptability or versatilityVSStrength

Solution Approach 1:

The clamp assembly combines a metal clamp body with a polymer liner, creating a composite structure that integrates the high strength of metal with the flexibility and adaptability of polymer material. The polymer liner conforms to the tube outer surface while the metal clamp provides rigid attachment strength.

Inventive Principle:

Principle #40Composite materials

3Ease of operation

If wrap bracket is used without proper engagement, then ease of installation is improved, but reliability deteriorates due to damage to elongated member

Engineering Contradiction:

Improveinstallation easeVSAvoidattachment reliability

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The polymer liner is pre-installed on the clamp body, creating a protective cushion between the metal clamp and the tube. This beforehand cushioning prevents direct contact and potential damage to the tube during installation and service, while maintaining ease of installation.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

4Ease of operation

If clearance exists between wrap bracket and tube, then ease of installation is improved, but harmful factors increase due to noise and wear

Engineering Contradiction:

Improveinstallation easeVSAvoidnoise and wear

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The polymer liner is pre-installed on the clamp body, creating a protective cushion between the metal clamp and the tube. This beforehand cushioning prevents direct contact and potential damage to the tube during installation and service, while maintaining ease of installation.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

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 secure, vibration-damping, and noise-reducing attachment of elongated members to supporting surfaces, preventing wear and damage, while being adaptable and suitable for various applications including high-temperature environments.

Implementation Method 1

The grommet is formed of an elastic material and conforms to the exterior of a tube

Methodology Applied

Scientific EffectElastic deformation: Elasticity

Implementation Method 2

A damper is a device that deadens, restrains, or depresses. A tuned mass damper is a device that is mounted to a structure for reducing vibration

Methodology Applied

Scientific EffectVibration damping: Damping

Data Source

PatentUS9482369B2Wrap bracket damper assembly

Publication Date: 2016.11.01 FRANKLIN FASTENER CO

AI summary

A damper assembly is provided with a grommet and a tubular clamp. The grommet includes a split tubular body that defines a substantially cylindrical cavity for receiving an elongated member. The split tubular body includes an oblong projection that extends radially outward. The tubular clamp defines a cavity for receiving the grommet within. The tubular clamp includes an axially extending gap and a slot formed through, wherein the slot is sized for receiving the oblong projection for locating the grommet to the tubular clamp. Wherein a longitudinal length of the grommet extends substantially beyond a length the tubular clamp for damping vibration of the elongated member.