Pump Vibration Isolation Mount With Locking Elastic Retention

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Solution Overview

Problem

Conventional vibration isolation structures using elastic members like rubber face detachment issues when subjected to horizontal forces, and securing these members with adhesives increases assembly time and risks appearance degradation.

Innovation Solution

A vibration isolation structure that employs a securing member with a locking projection to engage a locking surface, holding the elastic vibration isolation member in place without the need for adhesives, using a design where the securing member is deformed to firmly secure the member to the mounting structure part.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If adhesive is used to secure the elastic vibration isolation member to the mounting portion, then the reliability of preventing detachment is improved, but the assembly time increases and appearance may be degraded

Engineering Contradiction:

Improveattachment reliabilityVSAvoidassembly time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent replaces the chemical bonding system (adhesive) with a mechanical fastening system. The securing member features a locking projection that engages with a locking surface on the mounting portion, creating a mechanical interlock that prevents detachment without requiring adhesive bonding. This mechanical system eliminates the waiting time for adhesive drying while maintaining strong attachment reliability.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent divides the fastening function into separate components: the securing member with locking projection and the mounting portion with locking surface. This segmentation allows the elastic vibration isolation member to be attached through a simple insertion and locking action, eliminating the need for adhesive application and drying time, thus reducing assembly time while ensuring reliable attachment.

Inventive Principle:

Principle #1Segmentation

2Reliability

If adhesive is used to secure the elastic vibration isolation member, then the reliability of preventing detachment is improved, but the appearance may be degraded due to adhesive overflow

Engineering Contradiction:

Improveattachment reliabilityVSAvoidappearance degradation

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces adhesive bonding with a mechanical locking system where the locking projection engages with the locking surface. This mechanical fastening method completely eliminates the risk of adhesive overflow and associated appearance degradation, while maintaining secure attachment through the interlocking mechanism.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Ease of manufacture

If the elastic vibration isolation member is simply inserted into the insertion hole without additional securing, then the assembly process is simplified, but the member may be detached under horizontal force

Engineering Contradiction:

Improveassembly simplicityVSAvoidattachment reliability

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The patent employs a dynamic locking mechanism where the securing member can be easily inserted and installed, but once in place, the locking projection engages with the locking surface to prevent detachment. This provides both assembly simplicity and attachment reliability, as the locking action occurs automatically during installation without requiring complex procedures.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The locking projection acts as an intermediary element between the securing member and the mounting portion. This intermediate locking feature enables simple assembly through insertion while simultaneously ensuring reliable attachment by preventing detachment under horizontal forces, thus resolving the contradiction between assembly simplicity and attachment reliability.

Inventive Principle:

Principle #24Intermediary (Mediator)

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

This solution reliably inhibits the detachment of elastic vibration isolation members from the mounting structure part, simplifies the assembly process, and prevents adhesive-related appearance issues.

Implementation Method 1

at least one elastic vibration isolation member having a narrow portion narrowed by a mounting groove formed therein

Methodology Applied

Scientific EffectElastic deformation: Elasticity

Data Source

PatentUS20240110611A1Vibration isolation structure

Publication Date: 2024.04.04 NITTO KOHKI CO LTD

AI summary

A vibration isolation structure includes a mounting structure part secured to a pump, an elastic vibration isolation member attached to the mounting structure part, and an upper securing member secured to the mounting structure part to hold the elastic vibration isolation member. The upper securing member has first and second body portions opposed to each other across a tabular mounting portion of the mounting structure part in a thickness direction thereof. A connecting portion connects together the first and second body portions, and a locking projection extends from the first body portion. The upper securing member is secured to the mounting structure part by engagement of the locking projection with a locking surface of the mounting structure part. The upper securing member holds the elastic vibration isolation member to the tabular mounting portion by engaging the elastic vibration isolation member at a side closer to a side surface.