Anti-Vibration Bracket Rib Structure to Prevent Reinforcement Peeling
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Solution Overview
Problem
Conventional anti-vibration device brackets using a reinforcing member with a higher specific gravity than synthetic resin increase the overall weight and are prone to peeling when the reinforcing member is used only in necessary portions.
Innovation Solution
A bracket design featuring a reinforcing portion that extends and is fixed to the outer surface of a synthetic resin surrounding portion, with ribs formed on the surface to span the ends of the reinforcing portion, reducing weight increase and peeling, and manufactured using insert molding to ensure integral reinforcement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a reinforcing member with higher specific gravity than synthetic resin is used, then strength and fatigue resistance are improved, but the overall weight of the bracket increases
Solution Approach 1:
The reinforcing member is selectively applied only to specific regions of the bracket where strength enhancement is most needed, rather than uniformly across the entire bracket. This localized reinforcement approach allows the bracket to achieve improved strength and fatigue resistance in critical areas while maintaining weight reduction benefits in non-critical areas.
Solution Approach 2:
The bracket is divided into different functional zones: regions requiring high strength are reinforced with the higher specific gravity material, while other regions use only the synthetic resin material. This segmentation allows optimization of material distribution based on local structural requirements.
2Weight of stationary object
If a reinforcing member is used only in necessary portions to reduce weight, then weight increase is suppressed, but the end of the reinforcing member is peeled from the surrounding portion when loaded
Solution Approach 1:
Ribs are pre-formed as integral parts of the synthetic resin surrounding portion before the reinforcing member is installed. These ribs create mechanical interlocking features that prevent peeling of the reinforcing member ends from the surrounding portion when the bracket is loaded, thereby improving reliability without adding significant weight.
3Reliability
If the reinforcing portion is molded integrally with the surrounding portion, then peeling is suppressed, but manufacturing complexity increases
Solution Approach 1:
The manufacturing process combines multiple operations into a single integrated molding step. The ribs and surrounding portion are formed as one integral component in one molding operation, and the reinforcing member is simultaneously incorporated, creating a unified structure that prevents peeling while simplifying the overall manufacturing process.
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 suppresses weight increase and peeling of the reinforcing portion while enhancing the strength and rigidity of the bracket, maintaining the benefits of reduced weight compared to metal brackets.
Implementation Method 1
A method for manufacturing a bracket for an anti-vibration device according to the present disclosure is a method for manufacturing a bracket for an anti-vibration device, for obtaining the aforementioned bracket for an anti-vibration device, including a step of injecting synthetic resin serving as the surrounding portion and the rib into a mold cavity where a reinforcing member serving as the reinforcing portion is set
Data Source
AI summary
Provided are a bracket for an anti-vibration device, and a method for manufacturing the same, in which increase of weight and peeling of a reinforcing portion are suppressed. A bracket (1) has: a reinforcing portion (20) extending in a surrounding direction of the surrounding portion (10), having ends (21) in both directions of the surrounding direction, and being fixed to an outer surface of the portion (10); and ribs (30) formed on an outer circumference of the portion (10) so as to span the ends (21) of the reinforcing portion (20) in the surrounding direction of the portion (10). The portion (10) and the ribs (30) are made of synthetic resin. A method for manufacturing the bracket (1) includes a step of injecting synthetic resin serving as the portion (10) and the ribs (30) into a mold cavity where a reinforcing member serving as the portion (20) is set.