Anti-Vibration Device Locking Mechanism for Bracket Fixation
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Solution Overview
Problem
Conventional anti-vibration devices face challenges in securely fixing the anti-vibration device body to a bracket, as the press-fitting direction does not effectively restrict the coming-off direction, leading to potential dislodgment.
Innovation Solution
Incorporating locking parts with arm and hook mechanisms on the second attachment member that extend opposite to the press-fitting direction, locking onto designated holes on the bracket, thereby restricting movement in the coming-off direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the anti-vibration device body is fixed to the bracket by press-fitting via the second attachment member, then the assembly is simple and efficient, but the movement of the anti-vibration device body in the coming-off direction is not effectively restricted
Solution Approach 1:
The second attachment member is divided into functional segments: a press-fitting portion for assembly and locking portions for securing. This segmentation allows each part to perform its specific function optimally - the press-fitting portion enables efficient assembly while the locking portions prevent coming-off movement, resolving the contradiction between assembly efficiency and fixation reliability
Solution Approach 2:
The locking portions extend in a direction opposite to the press-fitting direction, adding a dimensional element that restricts movement in the coming-off direction. This dimensional extension transforms the single-direction press-fitting action into a multi-directional constraint system, preventing dislodgment while maintaining assembly efficiency
2Reliability
If locking parts are added to restrict movement in the coming-off direction, then the fixation reliability is improved, but the device complexity increases
Solution Approach 1:
The locking portions are integrated into the second attachment member as a unified structure rather than separate components. This merging reduces the total number of parts and simplifies the overall structure while still providing the necessary locking function to prevent coming-off movement, thus improving fixation reliability without significantly increasing device complexity
Solution Approach 2:
The second attachment member serves multiple functions: it provides press-fitting for assembly, incorporates locking portions to prevent coming-off movement, and maintains the insulator positioning. This multi-functionality reduces the need for additional separate components, achieving improved fixation reliability without proportionally increasing device complexity
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 anti-vibration device body is securely fixed to the bracket, preventing dislodgment and ensuring stable positioning, while allowing for easy formation and assembly of the locking parts.
Implementation Method 1
The second attachment member is provided with locking parts that are locked to the wall parts to restrict movement of the anti-vibration device body in a direction opposite to a press-fitting direction
Implementation Method 2
the arm part struts against movement of the anti-vibration device body in the coming-off direction
Data Source
AI summary
An anti-vibration device is provided with: an anti-vibration device body, in which an insulator is disposed between a first attachment member and a second attachment member; and a bracket, which has opposing wall portions and to which the anti-vibration device body is fixed by press-fitting via the second attachment member between the wall portions. The second attachment member is provided with interlocking portions that interlock with the wall portions and restrain the anti-vibration device body from moving in the direction opposite the press-fitting direction when the anti-vibration device body is press-fitted to the bracket. Each of the interlocking portions is configured so as to have an arm part extending in the direction opposite the press-fitting direction, and a hook part provided to the extension-direction end of the arm part and caused to interlock with a to-be-interlocked part of one of the wall portions.