Shift Cable Damping via Rubber Damper in Socket Housing
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Solution Overview
Problem
Existing damping systems for shift cables, which use mass dampers, are costly, heavy, and inefficient in reducing vibrations and noises transmitted through the steel core, and their effectiveness decreases due to frictional wear over time.
Innovation Solution
A damping system that incorporates a socket housing with a bottleneck section and a rubber damper integrally combined with the shift cable, where the damper is positioned in the bottleneck section to reduce vibrations and noises, and an elastic member connects the damper to a damper plate for enhanced performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a mass damper is attached to the shift cable cover, then vibrations and noises transmitted through the cover are reduced, but the cost and weight increase
Solution Approach 1:
The patent extracts the damping function from a separate mass damper component and integrates it into the shift cable cover itself by forming a bottleneck section with a gradually decreasing inner diameter. This eliminates the need for additional mass dampers, reducing both cost and weight while maintaining vibration and noise reduction effectiveness.
Solution Approach 2:
The patent merges the damping function with the shift cable cover structure by creating a bottleneck section that integrates vibration reduction capabilities into the existing cover design. This combination eliminates separate damping components and reduces overall system complexity, cost, and weight.
2Object-affected harmful factors
If a mass damper is attached to the shift cable cover, then vibrations and noises transmitted through the cover are reduced, but the cost increases
Solution Approach 1:
The patent combines the damping function with the shift cable cover manufacturing process by forming a bottleneck section directly in the cover structure. This integration eliminates the need for separate damping components and assembly steps, reducing manufacturing cost and complexity while maintaining effective vibration and noise reduction.
Solution Approach 2:
The patent removes the separate mass damper component and its associated manufacturing and assembly costs by extracting the damping function and embedding it directly into the cover structure through the bottleneck section design.
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
This configuration effectively reduces vibrations and noises transmitted through the shift cable, is cost-effective and lightweight, and maintains performance despite repeated use, without increasing the force required to operate the shift lever.
Implementation Method 1
a rubber damper integrally combined with the shift cable
Implementation Method 2
the damping system for a shift cable that is advantageous in terms of the cost and weight because of not using a mass damper, has substantially large effect of reducing vibrations and noises
Data Source
AI summary
A damping system for a shift cable is disclosed, in which vibrations and noises that are generated by a transmission and transmitted into the interior of a vehicle through a shift cable are considerably reduced across a damper, that is positioned in a bottleneck section of a socket housing and contacts with bottleneck section, such that it is possible to effectively exclude vibrations and noises transmitted into the interior of a vehicle. Further, the present invention is advantageous in terms of the cost and weight, because a rubber damper is used instead of a mass damper, and it is possible to reduce vibrations and noises without increasing force for operating a shift lever and maximally prevent the function of reducing vibrations and noises from being deteriorated by frictional wear.