Vibration Damping Device Holder Cavity Formation
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Solution Overview
Problem
The existing vibration damping device has high parts costs and requires extensive assembly time due to the need for separate slide molds to form the cavity, which causes interference with the stopper part and necessitates a two-part holder.
Innovation Solution
The vibration damping device integrates the stopper portion with the base portion, allowing the cavity to be formed using a slide mold inserted through an opening in the base, reducing the need for separate parts and assembly time, while also defining gaps and a wider opening to reduce shearing direction spring force and providing bottom portions for support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If slide molds are moved forward and backward to form the cavity, then the cavity can be formed, but the stopper part interferes with the slide molds and requires the stopper part to be separated from the base part
Solution Approach 1:
Instead of moving the slide molds forward and backward as in conventional designs, the invention inverts the approach by having the slide mold move only in the ejection direction. The cavity formation is achieved by the interaction between the stationary stopper part and the moving slide mold during injection, eliminating the need for complex bidirectional mold movement while maintaining cavity formation capability
Solution Approach 2:
The invention merges the stopper part and base part into a single integrally formed holder component. This integration eliminates the interference problem between separate parts and slide molds, simplifies the holder structure, and reduces assembly complexity while still enabling effective cavity formation through the modified slide mold mechanism
2Ease of manufacture
If the stopper part is separated from the base part, then the cavity can be formed, but the parts cost increases and assembly time is required
Solution Approach 1:
The stopper part and base part are merged into a single integrally formed holder component. This eliminates the need for separate assembly operations, reduces parts count, lowers manufacturing costs, and improves productivity by eliminating assembly time while maintaining the ability to form the cavity through the modified slide mold mechanism
3Reliability
If the insulator is deformed in the shearing direction, then vibration damping is achieved, but the spring force in the shearing direction is high
Solution Approach 1:
The invention applies local quality by creating a gap between the insulator and the stopper part in specific regions. This gap is strategically positioned to allow controlled deformation of the insulator in the shearing direction, enabling effective vibration damping while reducing the spring force in the shearing direction by providing space for the insulator to deform without excessive resistance
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 design reduces parts costs and assembly time, while effectively managing spring forces in both compression and shearing directions, enhancing productivity and vibration damping performance.
Implementation Method 1
an insulator that connects the mounting member with the holder... a pair of rubber feet that faces each other at a distance
Implementation Method 2
vibration damping device for a vehicle... effectively achieve a vibration damping function against vibration inputted in the right-left direction
Data Source
AI summary
Provided is a vibration damping device that reduces parts cost and improves productivity. The vibration damping device includes: a mounting member (10) that is attached to a vibration source; a holder (20) that is attached to a vibration receiver; and an insulator (30) that connects the mounting member (10) with the holder (20), wherein the holder (20) has a base portion (21) to which an end of the insulator (30) is coupled and a stopper portion (22) that rises from the base portion (21), and the insulator (30) has a pair of rubber feet (31 a, 31 b) that faces each other at a distance, wherein the pair of rubber feet (31a, 31 b) defines a cavity (35) therebetween, and the base portion (21) has an opening (25) formed therein at a position corresponding to the cavity (35).