Non-True-Circular Vibration Damping Mount Automatic Positioning
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Solution Overview
Problem
Conventional vibration-damping devices require complex and time-consuming positioning operations for vibration-damping members and bracket members, leading to poor productivity due to the need for precise alignment and potential fitting issues with positioning parts.
Innovation Solution
The vibration-damping device features non-true-circular shaped mounting members and fitting parts with varying radii, allowing for automatic alignment in the circumferential direction, and includes cut-off parts in the elastic body to reduce rigidity in specific directions, enhancing vibration-damping performance while maintaining supporting rigidity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If true-circular shaped mounting members and fitting parts are used, then the device structure is simple and easy to manufacture, but the positioning operation becomes complex and time-consuming
Solution Approach 1:
The mounting member and fitting part are designed with non-circular cross-sectional shapes (such as oval, rectangular, or irregular shapes) that provide inherent directional orientation. This asymmetric geometry automatically guides the correct positioning during assembly, eliminating the need for complex positioning operations while maintaining manufacturing simplicity
2Manufacturing precision
If manual positioning operations are performed to ensure precise alignment, then the positioning precision is improved, but the assembly time increases and productivity decreases
Solution Approach 1:
The non-circular geometry of the mounting member and fitting part creates a self-positioning mechanism where the components automatically align in the correct orientation during assembly. The shape complementarity ensures that only one orientation allows proper fitting, providing automatic positioning without requiring manual alignment operations or skilled operators
3Reliability
If positioning parts are added to ensure reliable alignment, then the positioning reliability is improved, but the device complexity increases
Solution Approach 1:
The inherent asymmetric shape of the mounting member and fitting part serves as the positioning mechanism itself, eliminating the need for additional positioning parts such as pins, keys, or alignment features. This integrates the positioning function into the basic geometry of the components, maintaining structural simplicity while ensuring reliable positioning
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 simplifies the positioning process, increases productivity by eliminating the need for manual alignment checks, and enhances vibration-damping performance while ensuring the durability and longevity of the device.
Implementation Method 1
an elastic body that elastically connects the first mounting member and the second mounting member
Implementation Method 2
vibration-damping device used as a cabin mount, an engine mount, or the like in an agricultural machine or a construction machine
Data Source
AI summary
This vibration-damping device (1) includes: a bracket member (3) connected to one of a vibration-generator and a vibration-receiver; and a vibration-damping member (2A, 2B) including: a cylindrical first mounting member (20A, 20B) fitted inside a fitting part (30) provided in the bracket member (3), a second mounting member (21A, 21B) connected to the other of the vibration generator and the vibration receiver, and an elastic body (22A, 22B) that elastically connects the first mounting member (20A, 20B) and the second mounting member (21A, 21B). The first mounting member (20A, 20B) and the fitting part (30) are each formed in a shape having a plurality of radii of different lengths in a plan view.