Vibration Prevention Device Bracket Press-Fitting Groove
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Solution Overview
Problem
Conventional vibration prevention devices become large due to increased heights of press-fitting surfaces and attachment members, compromising their compactness and effectiveness.
Innovation Solution
The vibration prevention device features a bracket with a press-fitting surface and groove configuration that reduces the contact area, allowing for secure attachment of a vibration prevention member while minimizing the overall size through the use of a press-fitting groove and elastic members for enhanced fitment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the height of press-fitting surface and attachment member are increased to securely fix the vibration prevention member, then the fixing reliability is improved, but the overall size of the device becomes large
Solution Approach 1:
The invention transitions from a single-dimension press-fitting approach (increasing height) to a two-dimensioned approach by adding a press-fitting groove that extends in the radial direction. This allows the attachment portion to engage with the groove walls on both sides, providing secure fixation without increasing the overall height of the bracket or attachment member.
Solution Approach 2:
The press-fitting interface is segmented into multiple contact regions: the press-fitting surface at the opening end and the press-fitting groove walls extending inward. This segmentation distributes the fixing force across multiple surfaces, improving reliability without requiring increased height in any single dimension.
2Reliability
If the area of press-fitting surface is increased to securely fix the vibration prevention member, then the fixing reliability is improved, but the size of the components becomes large
Solution Approach 1:
The invention extends the press-fitting interface from a single flat surface into the third dimension by creating a groove that extends inward from the opening. This provides additional contact area within the existing component footprint, improving fixing reliability without increasing the overall area of the bracket or attachment member.
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 securely fixes the vibration prevention member to the bracket, reducing the size of both components and the entire device, achieving a compact and effective vibration isolation solution.
Implementation Method 1
The vibration prevention member comprises a first attachment member, a second attachment member, and an insulator disposed between the first attachment member and the second attachment member
Data Source
AI summary
A vibration prevention device includes a vehicle body-side bracket having an inner space and a vibration prevention member disposed in the inner space. A press-fitting surface and a press-fitting groove are formed on an inner surface of the vehicle body-side bracket. The press-fitting surface and the press-fitting groove extend from an edge portion of the inner space opening through an outer surface of the bracket. The vibration prevention member has a first attachment member, a second attachment member, and an insulator disposed between the first attachment member and the second attachment member. The second attachment member has an abutting portion pressed against the press-fitting surface and an attachment portion press-fitted into the press-fitting groove.