Clamp Guide for Hose Bead Alignment and High-Pressure Retention

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Solution Overview

Problem

Existing methods for connecting hoses to fittings in high-pressure applications often fail to securely hold the hose due to slippage, despite the use of clamps and ridges or beads, as the force applied is not sufficient to prevent separation under high pressure.

Innovation Solution

A clamp guide with an arced surface and arms having bumps that align with hose beads is used to position hose clamps between the beads, ensuring a stronger bond by compressing the hose between the beads when tightened, thereby enhancing the connection's stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If clamps and ridges or beads are used to connect hose to fitting, then the connection strength is improved, but the hose still slips off under high pressure

Engineering Contradiction:
Improveconnection strengthVSAvoidhose retention
Core Design Contradiction:
StrengthVSReliability

Solution Approach 1:

A clamp guide is introduced as an intermediary component between the clamp and the hose/fitting assembly. The clamp guide features an arced surface that interfaces with the groove/bead on the fitting, and guide arms with bumps that align with hose beads to position the clamp precisely. This intermediary ensures the clamp is positioned optimally to prevent hose slippage under high pressure, resolving the contradiction between connection strength and reliable hose retention.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If guides are deployed to position clamps between ridges/beads, then the hose resistance to slippage is improved, but the alignment precision is insufficient

Engineering Contradiction:
Improvehose retentionVSAvoidclamp alignment precision
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The clamp guide is designed with pre-positioned bumps on its guide arms that correspond to and align with the hose beads. These bumps perform the preliminary action of precisely locating and positioning the clamp relative to the hose and fitting assembly before the tightening operation begins. This preliminary alignment ensures the clamp is positioned with high precision between the ridges/beads, preventing hose slippage and resolving the alignment precision issue.

Inventive Principle:
Principle #10Preliminary action

3Force

If multiple beads are added to the fitting, then the force to hold hose is improved, but the device complexity increases

Engineering Contradiction:
Improveholding forceVSAvoidfitting structure complexity
Core Design Contradiction:
ForceVSDevice complexity

Solution Approach 1:

The clamp guide serves as an intermediary that leverages the existing beads on the fitting (groove/bead and hose beads) to achieve precise clamp positioning and enhanced holding force. Rather than adding multiple beads to increase complexity, the clamp guide mediates between the existing bead structure and the clamp, ensuring optimal force distribution and hose retention while maintaining simpler fitting design.

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

The solution effectively prevents hose separation under high pressure by providing improved alignment and force distribution, ensuring a secure connection between the hose and fitting.

Implementation Method 1

the hose clamps are tightened, thereby compressing the flexible hose between the hose beads

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Data Source

PatentUS8342578B2Method and apparatus for connecting a hose to a fitting
Publication Date: 2013.01.01 BOBENHAUSEN LARRY F
  • US8342578B2 patent drawing
  • US8342578B2 patent drawing
  • US8342578B2 patent drawing

AI summary

An application for a clamp guide for joining a flexible hose to a rigid, hollow shaft having at least two beads, the clamp guide has an arced surface for interfacing with a head bead of the at least two beads and two clamp guide arms. Each of the clamp guide arms has at least two bumps and each bump is aligned with one of the beads thereby forming registration areas between each pair of bumps. The arced surface has an inner diameter equal to an outer diameter of the rigid, hollow shaft and the arced surface has an inner circumferential length greater than one half of the circumference of the rigid, hollow shaft.