Strut Mount Laminated Rubber Structure for Simpler Vibration Isolation
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Solution Overview
Problem
Conventional anti-vibration devices are costly and require complex structures that increase manufacturing and assembly time.
Innovation Solution
An anti-vibration device comprising a laminated section with alternating annular rubber and rigid layers, integrated with a strut mount and support section, eliminating the need for a separate bearing and reducing assembly man-hours.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a bearing is used between the strut mount and support member to support the coil spring, then the anti-vibration function is achieved, but the manufacturing cost and device complexity increase
Solution Approach 1:
The patent extracts and eliminates the bearing component from the conventional suspension structure. The laminated rubber layer assumes the function previously performed by the bearing, supporting the coil spring and enabling relative movement between the strut mount and support member without requiring a separate bearing component.
Solution Approach 2:
The patent merges the vibration isolation function and the bearing support function into a single laminated rubber layer component. This composite structure combines the elastic properties of rubber with the structural support function, eliminating the need for separate bearing components while maintaining both anti-vibration and support functions.
2Reliability
If a bearing is used between the strut mount and support member, then the coil spring is supported properly, but the assembly time and manufacturing cost increase
Solution Approach 1:
The laminated rubber layer integrates multiple functions into a single component: it provides spring support, enables relative movement, and facilitates assembly. The through-holes in the rubber layer allow the damper rod to pass through while the rubber itself supports the coil spring, eliminating the need for separate bearing components and reducing assembly steps.
Solution Approach 2:
The laminated rubber layer is designed with through-holes that allow the damper rod to pass through while the rubber material itself provides the support function. The structure is self-contained and does not require additional components or complex assembly procedures, reducing both manufacturing cost and assembly time.
3Adaptability or versatility
If multiple separate components are used in the suspension system, then each component can be optimized for its specific function, but the overall device complexity and cost increase
Solution Approach 1:
The patent combines multiple functions into the laminated rubber layer: vibration isolation, spring support, and relative movement accommodation. The rubber layer with integrated through-holes replaces what would traditionally require separate bearing components, reducing the total number of parts while maintaining functional optimization.
Solution Approach 2:
The laminated rubber layer serves multiple purposes simultaneously: it acts as a vibration isolator, a support element for the coil spring, and a structural component that accommodates the damper rod movement. This multi-functional design reduces the need for specialized separate components.
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
The device achieves cost reduction and simplified assembly while maintaining effective vibration absorption and noise reduction, suitable for lightweight vehicles.
Implementation Method 1
the laminated section has an annular rubber layer and an annular rigid layer that are alternately laminated in an axial direction
Implementation Method 2
maintaining effective vibration absorption and noise reduction
Data Source
AI summary
Provided is an anti-vibration device 1 configured for use in a suspension, comprising an extension and retraction section 12 having a damper rod 121 and a cylinder 122; a strut mount section 13 attached to the damper rod; a suspension spring section 17 arranged on an outer circumferential side of the extension and retraction section; a support section 16 made of a rigid body configured to support an upper end portion of the suspension spring section; a laminated section 14 arranged on an outer circumferential side of the damper rod and connected between the strut mount section and the support section, wherein the laminated section has an annular rubber layer 141 and an annular rigid layer 142 that are alternately laminated in an axial direction.