TGS Cable Socket Rubber Damper Vibration Damping

Solution Overview

Problem

Conventional Transmission Gear Shift (TGS) cables with mass dampers increase production costs and reduce manipulation performance during gear shifting due to the added component.

Innovation Solution

A TGS cable socket incorporating a rubber damper with a steel cup and guide pipe configuration that transmits manipulation force from the TGS lever to the transmission, effectively damping vibration and noise without the need for a separate mass damper, utilizing injection molding for manufacturing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a separate mass damper is installed on the TGS cable, then vibration and noise from the transmission are mitigated, but production cost increases and manipulation performance is reduced

Engineering Contradiction:

Improvevibration and noiseVSAvoidstructure complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent merges the damper function directly into the cable socket structure by forming a rubber damper layer through injection molding. The rubber damper is integrated with the housing to form a unified structure that combines both structural support and vibration damping functions, eliminating the need for a separate mass damper component.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent uses composite material construction by combining a rigid housing (first material) with a rubber damper layer (second material) through injection molding. The housing provides structural integrity while the rubber layer provides vibration damping, creating a composite structure that achieves both mechanical strength and NVH performance.

Inventive Principle:

Principle #40Composite materials

2Object-affected harmful factors

If a separate mass damper is installed on the TGS cable, then vibration and noise from the transmission are mitigated, but production cost increases

Engineering Contradiction:

Improvevibration and noiseVSAvoidproduction cost

Core Design Contradiction:

Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The patent merges the damper function directly into the cable socket structure by forming a rubber damper layer through injection molding. The rubber damper is integrated with the housing to form a unified structure that combines both structural support and vibration damping functions, eliminating the need for a separate mass damper component.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent uses composite material construction by combining a rigid housing (first material) with a rubber damper layer (second material) through injection molding. The housing provides structural integrity while the rubber layer provides vibration damping, creating a composite structure that achieves both mechanical strength and NVH performance.

Inventive Principle:

Principle #40Composite materials

3Object-affected harmful factors

If a separate mass damper is installed on the TGS cable, then vibration and noise from the transmission are mitigated, but manipulation performance is reduced

Engineering Contradiction:

Improvevibration and noiseVSAvoidmanipulation performance

Core Design Contradiction:

Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The patent merges the damper function directly into the cable socket structure by forming a rubber damper layer through injection molding. The rubber damper is integrated with the housing to form a unified structure that combines both structural support and vibration damping functions, eliminating the need for a separate mass damper component.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent uses composite material construction by combining a rigid housing (first material) with a rubber damper layer (second material) through injection molding. The housing provides structural integrity while the rubber layer provides vibration damping, creating a composite structure that achieves both mechanical strength and NVH performance.

Inventive Principle:

Principle #40Composite materials

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 reduces production costs and enhances manipulation performance by effectively mitigating vibration and noise, improving NVH (Noise, Vibration, and Harshness) performance without a separate mass damper.

Implementation Method 1

the rubber damper configured to damp vibration transmitted from the outer cable

Methodology Applied

Scientific EffectViscoelasticity: Viscoelasticity

Data Source

PatentUS10024356B2TGS cable socket including rubber damper and method of manufacturing the same

Publication Date: 2018.07.17 HYUNDAI MOTOR CO LTD

AI summary

A Transmission Gear Shift (TGS) cable socket including a rubber damper to couple a TGS lever and an outer cable to each other so a manipulation force of the TGS lever is transmitted to a transmission through an inner cable disposed in the outer cable, may include the rubber damper to damp vibration transmitted from the outer cable, a steel cup disposed coaxially with the rubber damper, the steel cup having a first end disposed in the rubber damper, and a second end protruding from the rubber damper and coupled to the outer cable, and a guide pipe disposed coaxially with the rubber damper, the guide pipe including a first end disposed in the rubber damper at a position spaced apart from the steel cup, and a second end protruding from the rubber damper.