Bracket Vibration Damping Device Secure Insertion Locking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vibration-damping devices for automotive engine mounts face issues with damage and secular deterioration due to elastic deformation during assembly, particularly when using snap-fitting mechanisms, and suffer from noise caused by dimensional changes and rattling due to material properties and manufacturing difficulties.
Innovation Solution
A bracket-equipped vibration-damping device with a novel structure featuring a connection-insert section and a connection groove, where the connection-insert section is inserted beyond a lock protrusion, utilizing up-down urging rubber for secure positioning and locking without the need for deformation, thereby enhancing durability and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If snap-fitting mechanism is used to retain the vibration-damping element in the support body, then dislodgement is avoided, but elastic deformation during assembly causes damage and secular deterioration
Solution Approach 1:
The connection structure is divided into separate components: a connection-insert section with a connection-insert outer surface, and a connection groove with a connection groove inner surface. These segments connect through insertion without requiring elastic deformation, avoiding damage while maintaining retainment reliability.
Solution Approach 2:
The connection-insert section acts as an intermediary element that facilitates the connection between the vibration-damping element and the support body. It provides a dedicated insertion interface that eliminates the need for snap-fitting elastic deformation, preventing structural damage while ensuring reliable retention.
2Ease of manufacture
If snap-fitting lug and notch are formed on synthetic resin parts for weight reduction, then formability is improved, but elastic deformation during mounting causes damages and secular deterioration
Solution Approach 1:
The connection-insert section and connection groove are pre-formed with complementary geometries during the molding process. This preliminary action creates ready-to-connect interfaces that eliminate the need for elastic deformation during assembly, maintaining both formability and assembly reliability.
3Manufacturing precision
If rigid rib is inserted into rigid slider for positioning, then positioning accuracy is achieved, but dimensional changes in synthetic resin cause rattling noise
Solution Approach 1:
The connection structure utilizes elastic deformation parameters of the connection-insert section and connection groove surfaces. By allowing controlled elastic deformation during insertion, the structure accommodates dimensional changes in synthetic resin parts while maintaining stable positioning, thereby eliminating rattling noise.
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 effectively prevents damage and separation of components during assembly, improves durability, and reduces noise by ensuring stable retention and alignment of the vibration-damping device, while simplifying the manufacturing process.
Implementation Method 1
at least one up-down urging rubber which is fixed on an outer surface of the connection-insert section on a first side of upper and lower sides
Data Source
AI summary
A bracket-equipped vibration-damping device including: a vibration-damping device main body including vertically-separated, elastically-connected first and second mounting members; a bracket receiving the device main body inserted laterally thereinto; a connection-insert section provided for the second mounting member; a connection groove provided for the bracket extending in an insertion direction of the device main body; at least one up-down urging rubber fixed on an outer surface of the connection-insert section on an upper-lower first side; and a lock protrusion formed on an inner surface of the connection groove on an upper-lower second side, with a smaller protrusion dimension than an up-down thickness of the up-down urging rubber such that the connection-insert section is laterally inserted into the connection groove beyond the lock protrusion before being urged to the second side by the up-down urging rubber to be positioned to the connection groove.