Integral Stopper Rubber Vibration Damping Device
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Solution Overview
Problem
Conventional vibration damping devices with stopper rubbers attached to an outer bracket face challenges in forming multiple stopper rubbers integrally due to increased complexity and component count, making it difficult to disperse load effectively and prevent excessive deformation.
Innovation Solution
The vibration damping device integrates stopper rubbers with mating recesses that open in the same direction, connected by a rubber connecting portion, allowing for elastic deformation to face different directions when attached to the outer bracket, enabling integral formation and dispersed load distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple stopper rubbers are formed independently with mating recesses to be mated with the outer bracket, then the load during contact can be dispersed over the circumference, but the number of components increases and integral formation becomes difficult
Solution Approach 1:
The patent combines multiple stopper rubbers into a single integral component. The stopper rubber is formed as one piece with multiple mating recesses that open in the same direction, eliminating the need for multiple separate stopper rubber components while maintaining load dispersion capability through the distributed recesses.
Solution Approach 2:
The stopper rubber is segmented into multiple functional regions through the provision of multiple mating recesses distributed around the circumference. Each recess can engage with a corresponding protrusion on the outer bracket, allowing load to be dispersed across multiple contact points while remaining part of a single integrated component.
2Ease of manufacture
If stopper rubbers are formed with mating recesses opening in different directions to mate with outer bracket, then attachment is achieved, but mold structure becomes complex
Solution Approach 1:
The mating recesses are designed with asymmetric orientation relative to the stopper rubber body, but all recesses open in the same general direction. This asymmetric design within a unified orientation allows the recesses to engage with protrusions on the outer bracket while maintaining compatibility with a simple two-part mold structure.
Solution Approach 2:
Instead of having mating recesses open in different directions to achieve attachment, the invention inverts the approach by having all recesses open in the same direction while achieving attachment through the distributed arrangement of recesses around the circumference. This simplifies the mold structure while maintaining attachment capability.
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 allows for the integral formation of multiple stopper rubbers with a simple mold structure, stable attachment to the outer bracket, and effective dispersion of load, reducing the risk of mispositioning and disengagement while minimizing component count and weight.
Implementation Method 1
the stopper rubbers are integrally formed by being connected by at least one rubber connecting portion, and wherein the stopper rubbers are attached to the outer bracket with the rubber connecting portion being deformed so that the mating recesses are arranged so as to open toward different directions
Data Source
AI summary
A vibration damping device having stopper rubbers including: a first and second mounting members; an outer bracket attached to the second mounting member; and a plurality of stopper rubbers attached to the outer bracket and providing a stopper mechanism for limiting an amount of relative displacement between the first and second mounting members by means of contact between a first mounting member side and the outer bracket via the stopper rubbers. The stopper rubbers include respective mating recesses and the mating recesses open toward a same direction. The stopper rubbers are integrally connected by at least one rubber connecting portion. The stopper rubbers are attached to the outer bracket with the rubber connecting portion being deformed so that the mating recesses are arranged so as to open toward different directions and are mated with the outer bracket.