Vibrating Member Attachment Structure with Elastomer Insulation

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Solution Overview

Problem

Existing vibrating member attachment structures face issues with resilience loss and complexity due to the use of multiple damper members and shock absorption washers, leading to potential loosening of attachments and increased noise transmission.

Innovation Solution

A vibrating member attachment structure featuring a sound insulation layer with a folded-back portion, a support member with higher rigidity, and an attachment member that suppresses elastic deformation, reducing the need for additional parts and simplifying the structure while effectively blocking noise and vibrations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If multiple damper members and shock absorption washers are used to attach the vibrating member, then noise and vibrations are suppressed, but the number of parts increases and the structure becomes complicated

Engineering Contradiction:

Improvenoise and vibrationsVSAvoidstructure complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent combines multiple damping components (damper members and shock absorption washers) into a single integrated sound insulation layer made of elastomer. This unified structure attaches the vibrating member to the mating member while maintaining vibration suppression functionality, thereby reducing part count and simplifying the overall structure.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The sound insulation layer serves multiple functions simultaneously: it acts as a damper member for vibration suppression, provides shock absorption, and functions as a sound insulation barrier. This multi-functionality eliminates the need for separate components, reducing structural complexity while maintaining effective noise and vibration control.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Object-affected harmful factors

If multiple damper members and shock absorption washers are used to attach the vibrating member, then noise and vibrations are suppressed, but the number of parts increases

Engineering Contradiction:

Improvenoise and vibrationsVSAvoidnumber of parts

Core Design Contradiction:

Object-affected harmful factorsVSQuantity of substance

Solution Approach 1:

The patent merges multiple separate damping components into a single integrated sound insulation layer made of elastomer. This consolidation reduces the number of parts from multiple discrete components (damper members, shock absorption washers) to one unified structure, simplifying assembly and reducing part inventory.

Inventive Principle:

Principle #5Merging (Combining)

3Strength

If the attachment load is applied to the elastomer components, then the vibrating member is securely attached, but the elastomer loses resilience and the nut may get loose

Engineering Contradiction:

Improveattachment strengthVSAvoidresilience retention

Core Design Contradiction:

StrengthVSReliability

Solution Approach 1:

The patent modifies the physical parameters of the elastomer sound insulation layer, specifically its thickness and hardness, to optimize the balance between attachment strength and resilience retention. By carefully controlling these parameters, the elastomer can withstand attachment loads while maintaining sufficient elastic recovery capability to prevent loosening.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The sound insulation layer is made of elastomer material that combines the properties of flexibility and strength. This material selection allows the component to maintain resilience under attachment loads, preventing the nut from getting loose while still providing secure attachment of the vibrating member.

Inventive Principle:

Principle #40Composite materials

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 provides a simple, resilient attachment structure that effectively suppresses noise and vibrations, maintains attachment stability, and reduces the number of parts required, thereby enhancing the reliability and efficiency of noise reduction.

Implementation Method 1

a sound insulation layer made of an elastomer

Methodology Applied

Scientific EffectElasticity: Elasticity

Implementation Method 2

suppressing noise and vibrations

Methodology Applied

Scientific EffectVibration damping: Damping

Implementation Method 3

a deformation suppressing portion that suppresses elastic deformation of the folded-back portion due to an attachment load

Methodology Applied

Scientific EffectElastic deformation: Elasticity

Data Source

PatentUS9267565B2Vibrating member attachment structure

Publication Date: 2016.02.23 SUMITOMO RIKO CO LTD

AI summary

A vibrating member attachment structure includes: a sound insulation layer made of elastomer and including an accommodating portion that defines an accommodating space in which a vibrating member is accommodated, and a folded-back portion having a hem portion connecting to the accommodating portion, a contact portion placed so as to face the hem portion and contacting a mating member, a joint portion connecting the hem portion and the contact portion, and an insertion space defined by the hem portion, the contact portion, and the joint portion; a support member having higher rigidity than the sound insulation layer and including a sealing portion that seals an opening of the accommodating space, and an insertion portion that connects to the sealing portion and that is inserted in the insertion space; and an attachment member and including a shaft portion and a deformation suppressing portion.