Elastomeric Mount Damping Insert With Cut-Out Head for Easy Assembly

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Solution Overview

Problem

The manual insertion of elastomeric damping devices into through-holes of mounting structures is difficult due to their larger diameter, which can compromise the ease of assembly and structural integrity.

Innovation Solution

The elastomeric damping device is designed with a main body, a bottom flange, and a head portion featuring cut-outs that form a wedge-shaped indent, allowing for easier insertion by reducing the required force through radial expansion and compression.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the diameter of the contact portion is made larger than the through-hole diameter to ensure proper positioning and separation, then the damping effect and structural stability are improved, but the ease of manual insertion deteriorates

Engineering Contradiction:
Improvedamping effectVSAvoidease of insertion
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The head portion is segmented into multiple petal-like elements through cut-outs, allowing it to be compressed into a smaller diameter for insertion and then expand to its full diameter for proper positioning and damping function

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The effective diameter of the head portion is dynamically changed by compressing the elastomeric material during insertion, then allowing it to expand to its original larger diameter once inserted, resolving the contradiction between insertion ease and positioning accuracy

Inventive Principle:
Principle #35Parameter changes

2Strength

If the diameter of the contact portion is made larger than the through-hole diameter to ensure proper positioning, then the structural integrity is improved, but the force required for insertion increases

Engineering Contradiction:
Improvestructural integrityVSAvoidinsertion force
Core Design Contradiction:
StrengthVSForce

Solution Approach 1:

The cut-outs are pre-formed in the head portion to create wedge-shaped indents that facilitate compression and radial expansion during insertion, reducing the force needed to overcome the diameter mismatch between the contact portion and through-hole

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The elastomeric head portion acts as a flexible element that can be compressed to a smaller diameter for insertion and then expands to its full diameter, allowing the contact portion to be larger than the through-hole while minimizing insertion force

Inventive Principle:
Principle #30Flexible shells and thin films

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

Facilitates the assembly of the damping device by reducing the force needed to insert it into the through-hole, enhancing the structural integrity and ease of installation.

Implementation Method 1

The main body is formed of a resilient material

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

elastomeric damping devices are installed in various locations of the applications... to absorb vibrational loads

Methodology Applied
Scientific EffectVibration damping: Damping

Implementation Method 3

allowing for easier insertion by reducing the required force through radial expansion and compression

Methodology Applied
Scientific EffectCompression: Compression

Implementation Method 4

radial expansion and compression

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentUS20250293368A1Damping device and mount assembly with a damping device
Publication Date: 2025.09.18 SUMITOMO RIKO CO LTD
  • US20250293368A1 patent drawing
  • US20250293368A1 patent drawing
  • US20250293368A1 patent drawing

AI summary

An elastomeric damping device, a mount assembly, and a method for assembling the mount assembly is provided. The mount assembly includes a casing having a first through-hole. The elastomeric damping device is disposed in the first through-hole and includes a main body, a bottom flange, and a head portion. The bottom flange is disposed on a bottom end of the casing and the head portion is disposed on the top end of the casing. The head portion includes at least two cut-outs which form a wedge shaped indent on an outer peripheral wall of the head portion.