Rubber Mount With Threaded Bolt Intermediate Part
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Solution Overview
Problem
Existing rubber mounts for automotive components require multiple parts and a complex assembly process, and lack effective vibration isolation and firm support, leading to potential displacement and improper load distribution.
Innovation Solution
A simplified rubber mount design featuring a cylindrical rubber member with a support groove and a threaded bolt with an intermediate part of larger diameter, which allows controlled compression and secure attachment without a collar, facilitating easy assembly and effective vibration insulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a collar is added to control the compressive load on the rubber member, then the vibration insulation performance is improved, but the number of components increases and the assembly process becomes complex
Solution Approach 1:
The invention merges the collar and the threaded bolt into a single integrated component. The threaded bolt now includes an intermediate portion with a larger diameter that performs the compression control function previously dedicated to the collar. This integration eliminates the separate collar component while maintaining the ability to control compressive load on the rubber member through the dimensioned intermediate portion.
Solution Approach 2:
The threaded bolt is transformed into a multi-functional component. In addition to its traditional fastening function, the intermediate portion of the threaded bolt now serves as the compression control element (replacing the collar). This universal design allows a single component to perform multiple functions: securing the rubber member, controlling compression load, and providing structural support.
2Reliability
If a collar is added to control the compressive load on the rubber member, then the vibration insulation performance is improved, but the assembly process becomes more complex and time-consuming
Solution Approach 1:
The invention merges the collar and the threaded bolt into a single integrated component. The threaded bolt now includes an intermediate portion with a larger diameter that performs the compression control function previously dedicated to the collar. This integration eliminates the separate collar component while maintaining the ability to control compressive load on the rubber member through the dimensioned intermediate portion.
Solution Approach 2:
The compression control function is built into the threaded bolt structure itself during manufacturing. The intermediate portion with the larger diameter is pre-formed on the threaded bolt, so no separate collar needs to be installed or adjusted during assembly. The correct compression geometry is prepared in advance as part of the bolt structure.
3Stability of the object's composition
If the rubber member is firmly supported to prevent displacement, then the structural stability is improved, but the vibration insulation capability may be reduced
Solution Approach 1:
The invention applies different levels of support and constraint to different parts of the rubber member. The intermediate portion of the threaded bolt provides localized compression at specific points, while allowing other areas of the rubber member to maintain their resilient properties. This localized approach ensures structural stability where needed while preserving vibration insulation capabilities in other regions.
Solution Approach 2:
The invention controls the compression parameter by carefully designing the dimensions of the intermediate portion of the threaded bolt. By adjusting the diameter and length of this intermediate section, the optimal compressive load is applied to the rubber member, balancing structural stability with vibration insulation performance.
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 solution reduces the number of components, simplifies assembly, and provides stable vibration isolation and firm support for automotive components, while allowing easy disassembly and recycling, effectively preventing vibration transmission and component displacement.
Implementation Method 1
a cylindrical rubber member formed with a support groove on an outer circumferential surface thereof for engaging the component part and a central axial bore
Implementation Method 2
a threaded bolt passed into the central axial bore of the rubber member and including an intermediate part received in the central axial bore of the rubber member, a head provided on one end of the intermediate part and a threaded part provided on the opposite end of the intermediate part and threaded into a hole of the base member
Data Source
AI summary
A rubber mount includes a cylindrical rubber member (6) formed with an annular groove (12) to engage a component part (4) to be supported, and a threaded bolt (7) passed through a central axial bore (11) of the rubber member and having a threaded part (24) in a forward end thereof to be threaded into a base member (1). The intermediate part is provided with a larger diameter than the threaded part, and a pair of annular grooves (25, 26) are formed on an outer circumferential surface of the intermediate part. The rubber member is axially compressed by the head (21, 22) of the threaded bolt when the threaded bolt is fully threaded into the hole. The rubber mount consists a small number of component parts, and is easy to install, but is still able to firmly support the component part and provide a favorable vibration insulation capability.