Anti-Vibration Device Stopper Integration
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Solution Overview
Problem
Existing anti-vibration devices for vehicles face high manufacturing costs due to the need for rubber covering on engagement portions and increased weight and size due to stopper formations on vibration-side brackets, which are not efficiently addressed by current technologies.
Innovation Solution
An anti-vibration device with a stopper portion on the first attachment member and a cover portion on the insulator that prevents collision noise, eliminating the need for rubber covering on non-vibration-side brackets and reducing the size and weight of vibration-side brackets by integrating the stopper within the insulator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a rubber member is used to cover the engagement portion to prevent collision noise, then collision noise is prevented, but manufacturing costs increase due to additional molds
Solution Approach 1:
The patent combines the noise prevention function and the structural support function into a single integrated stopper portion made of the same material as the bracket. This eliminates the need for separate rubber covering and additional molds, reducing manufacturing complexity while maintaining noise prevention capability through the stopper's design
2Length of moving object
If a stopper portion is formed on the vibration-side bracket to restrict extension, then the amount of extension is restricted, but the bracket increases in size and weight
Solution Approach 1:
The patent extracts the extension restriction function from the vibration-side bracket and relocates it to the non-vibration-side bracket. By forming the stopper portion on the non-vibration-side bracket instead, the vibration-side bracket remains compact and lightweight while still achieving the desired extension limitation through the stopper's positioning
3Length of moving object
If a stopper portion is formed on the vibration-side bracket to restrict extension, then the amount of extension is restricted, but manufacturing costs increase
Solution Approach 1:
The patent extracts the stopper portion formation from the vibration-side bracket and relocates it to the non-vibration-side bracket. This relocation eliminates the need for additional molds on the vibration-side bracket, reducing manufacturing complexity and costs while maintaining the extension restriction function
Solution Approach 2:
The non-vibration-side bracket is designed to serve multiple functions: it provides structural support, houses the engagement portion, and incorporates the stopper portion for extension restriction. This multi-functionality consolidates manufacturing processes and reduces the number of components and molds required
Data Source
AI summary
Provided is an anti-vibration device which is provided between a vibration-side bracket attached to a vibration member and a non-vibration-side bracket attached to a non-vibration member, the anti-vibration device including: a first attachment member attached to the vibration-side bracket; a second attachment member attached to the non-vibration-side bracket; and an insulator provided between the first attachment member and the second attachment member, wherein the first attachment member includes a stopper portion which faces an engagement portion formed on the non-vibration-side bracket, and the insulator includes a cover portion which covers at least a surface of the stopper portion facing the engagement portion.