Metal-Rubber Vibration Mount Attachment Against Dislodgment

Solution Overview

Problem

Existing vibration damping devices face issues with dislodgment, damage during attachment, insufficient load-bearing capability, and positioning accuracy due to the use of synthetic resin and urging rubbers, leading to potential rattling and creep deformation.

Innovation Solution

A vibration damping device with metal-made connecting parts and urging rubbers, featuring metal-to-metal contact and detent engagers to prevent dislodgment, improve load-bearing capability, and enhance positioning accuracy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a synthetic resin second attachment member is used to form an engaging projection for dislodgment prevention, then the engaging projection can be formed, but damage during deformation and time-dependent deterioration occur

Engineering Contradiction:

Improvedislodgment preventionVSAvoidload-bearing capability

Core Design Contradiction:

ReliabilityVSStrength

Solution Approach 1:

The patent changes the material parameter from synthetic resin to metal for the connecting part main body, thereby eliminating time-dependent deterioration and improving load-bearing capability while maintaining dislodgment prevention functionality through the same engaging projection structure

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent creates a composite structure combining metal (connecting part main body) with synthetic resin (urging rubber), where the metal provides strength and durability while the resin provides elastic urging force for engagement and dislodgment prevention

Inventive Principle:

Principle #40Composite materials

2Reliability

If the second attachment member is made of synthetic resin to form an engaging projection, then dislodgment prevention is achieved, but time-dependent deterioration such as creep deformation occurs

Engineering Contradiction:

Improvedislodgment preventionVSAvoidservice life

Core Design Contradiction:

ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The patent changes the material parameter from synthetic resin to metal for the connecting part main body, thereby eliminating time-dependent deterioration and improving load-bearing capability while maintaining dislodgment prevention functionality through the same engaging projection structure

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent creates a composite structure combining metal (connecting part main body) with synthetic resin (urging rubber), where the metal provides strength and durability while the resin provides elastic urging force for engagement and dislodgment prevention

Inventive Principle:

Principle #40Composite materials

3Ease of operation

If urging rubbers are provided on outer peripheral surfaces of connecting parts, then positioning is achieved, but positioning accuracy in the direction of opposition of connecting grooves is insufficient

Engineering Contradiction:

ImprovepositioningVSAvoidpositioning accuracy

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The patent applies local quality by providing urging rubbers only on specific surfaces (first and second urging rubbers on upper/lower faces) rather than uniformly on all outer peripheral surfaces, creating localized positioning zones that improve accuracy in critical directions while maintaining ease of operation

Inventive Principle:

Principle #3Local quality

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

Prevents damage and rattling, maintains load-bearing capability, and improves positioning accuracy by using metal connecting parts and urging rubbers, ensuring stable attachment and reduced creep deformation.

Implementation Method 1

the urging rubber actively undergoes elastic deformation, so that the deformation of the connecting part main body can be reduced or avoided

Methodology Applied

Scientific EffectElastic deformation: Elasticity

Implementation Method 2

the metal is exposed on an outer peripheral surface and a lower face to be in metal-to-metal contact with a groove-inside bottom face and a groove-inside lower face

Methodology Applied

Scientific EffectMetal-to-metal contact: Friction

Implementation Method 3

there are provided respective detent engagers that prevent dislodgment of the first and second connecting parts which are held in an engaged state by the urging force

Methodology Applied

Scientific EffectMechanical fastening: Mechanical Fastener

Data Source

PatentUS12601386B2Vibration damping device

Publication Date: 2026.04.14 SUMITOMO RIKO CO LTD

AI summary

A vibration damping device including a main unit including first and second attachments connected by a rubber body, the second attachment including metallic first and second connectors inserted into metallic first and second grooves of a bracket. The metal is exposed on outer and lower faces of the first connector to be in metal-to-metal contact with groove-inside bottom and lower faces of the first groove. An upper urging rubber on the first connector contacts a groove-inside upper face of the first groove. The metal is exposed on a lower face of the second connector to be in metal-to-metal contact with a groove-inside lower face of the second groove. Upper and outer urging rubbers on the second connector contact groove-inside upper and bottom faces of the second groove. Detent engagers between the connectors and the grooves prevent dislodgment of the connectors from the grooves.