Engine Mount X-Direction Regulation via Integrated Recesses
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Solution Overview
Problem
The existing engine mount vibration isolating devices face difficulties in manufacturing due to the need for a separate outside stopper, which complicates the molding process and increases the number of components, making the device larger and more complex.
Innovation Solution
The integration of an X-direction regulating means on the second mounting metal fitting eliminates the need for a separate outside stopper, allowing the vibration isolating elastic body to be connected directly to the second mounting metal fitting, reducing component count and simplifying the manufacturing process by providing a pair of expanded recess portions that regulate movement in the X-direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate outside stopper is provided to regulate movement in the X direction, then the movement regulation function is achieved, but the number of components increases and the device becomes more complex
Solution Approach 1:
The patent combines the outside stopper function with the second mounting metal fitting by providing expanded recess portions directly on the second mounting metal fitting. This integration eliminates the need for a separate outside stopper component while maintaining the movement regulation function in the X direction, thereby reducing device complexity and component count.
2Reliability
If a separate outside stopper is provided to regulate movement in the X direction, then the movement regulation function is achieved, but the manufacturing process becomes more difficult
Solution Approach 1:
The expanded recess portions are formed as integral features of the second mounting metal fitting, allowing both components to be manufactured together in a single molding process. This eliminates the need for separate manufacturing and assembly steps for the outside stopper, significantly simplifying the manufacturing process while maintaining the movement regulation function.
3Reliability
If a separate outside stopper is provided, then the movement regulation function is achieved, but the device size increases
Solution Approach 1:
By integrating the outside stopper function into the second mounting metal fitting through expanded recess portions, the patent eliminates the need for additional space that would be required for a separate outside stopper component. This integration reduces the overall device size and volume while maintaining the movement regulation function.
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 solution enables easier assembly and manufacturing of the engine mount by reducing the number of components and simplifying the molding process, while effectively regulating movement in the X-direction without the need for a separate outside stopper, thus enhancing the device's compactness and efficiency.
Implementation Method 1
a vibration isolating elastic body 130 is made of rubber or the like and formed with Y direction elastic legs 133 which extend in the Y direction in a bifurcated form and the X direction elastic legs 135 which extend in the X direction in a bifurcated form
Implementation Method 2
the second mounting metal fitting (40) is integrally provided with an X direction regulating means (44) for regulating a movement in the X direction of the projecting section (50)
Data Source
AI summary
A first mounting metal fitting is connected to an engine while a second mounting metal fitting is mounted on a vehicle body. A vibration isolating elastic body provides a connection between the first and second mounting metal fittings. Middle portions of opposed upwardly extending wall sections are formed in a concave curve surface, and expanded recess portions are provided between the opposed upwardly extending wall sections. A projecting section provided on the first mounting metal fitting is accommodated in the expanded recess portions. The projecting section overlaps with the expanded recess portions in the X direction so as to regulate the movement in the X direction of the first mounting metal fitting. The X direction elastic leg for regulating the movement in the X direction is not provided, so that the molding can be performed by demolding a molded object in the X direction.