Integrated Elastic Stopper Structure for Multi-Direction Vibration Isolation
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Solution Overview
Problem
Conventional vibration isolation devices face issues with misalignment of elastic stoppers relative to the first attachment member and difficulty in accommodating multiple vibration input directions without increasing the number of parts.
Innovation Solution
A vibration isolation device with an integrated elastic stopper comprising a first and second stopper portion, linked by a linking portion, and restricted by restriction portions to prevent misalignment and accommodate multiple vibration directions, formed as a single part to minimize part count.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If additional stopper portions are provided for multiple directions, then the ability to accommodate multiple vibration input directions is improved, but the number of parts increases
Solution Approach 1:
The patent merges multiple stopper portions (first stopper portion with stopper walls and second stopper portion) into a single integrated elastic stopper component. This consolidation allows the device to accommodate vibrations in multiple directions (first direction between stopper walls, second direction by second stopper portion) while maintaining a reduced part count, as the multiple functional elements are unified into one piece rather than being separate components
Solution Approach 2:
The elastic stopper is designed with multi-functionality by incorporating both the first stopper portion (with stopper walls for one direction) and the second stopper portion (for another direction) within a single component. This universal design enables the same component to perform multiple functions: restricting vibration in the first direction through stopper walls and restricting vibration in the second direction through the second stopper portion, thereby accommodating multiple vibration input directions without requiring separate specialized components for each direction
2Ease of operation
If the elastic stopper is not adhered to the first attachment member, then the ease of assembly is improved, but the misalignment of the elastic stopper relative to the first attachment member occurs
Solution Approach 1:
The elastic stopper is designed to be self-aligning through its integrated structure comprising the first stopper portion and second stopper portion that work together to automatically position themselves correctly relative to the first attachment member during assembly. The geometric configuration and mechanical constraints of the integrated design enable the stopper to self-correct and settle into the proper aligned position without requiring external adhesion or complex alignment procedures, thus maintaining both ease of assembly and alignment precision
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 effectively accommodates multiple vibration directions while minimizing part count and preventing misalignment of the elastic stopper without adhesion, ensuring secure attachment to the first attachment member.
Implementation Method 1
an elastic body linking the inner circumferential surface of the outer cylinder and the outer circumferential surface of the inner cylinder to each other
Implementation Method 2
an elastic stopper between the first attachment member and the second attachment member
Data Source
AI summary
In this vibration isolation device, an elastic stopper (30) between a first attachment member (11) and a second attachment member (12) includes a first stopper portion (31) including a pair of stopper walls (31a) and a second stopper portion (32). The stopper walls are linked in a first direction by the second stopper portion and a linking portion (33) extending in the first direction. The first stopper portion, the second stopper portion, and the linking portion are formed as one part. The first attachment member includes a pair of restriction portions (35, 39) that engage with the linking portion and at least one of the first stopper portion and the second stopper portion, and restrict the first stopper portion and the linking portion from approaching each other in a third direction. Portions (31b) of the first stopper portion connecting to the linking portion are tensioned in the third direction.