Integrated Hose Clamp Spring Band for Fewer Components

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Solution Overview

Problem

The existing hose clamps have a complex design with numerous components, leading to high production costs and complexity.

Innovation Solution

A hose clamp design with a clamp band, tensioning device, and positioning arrangement where the positioner is integrated into the spring arrangement's inner band, with a corrugated spring between the clamp band and inner band, allowing for a continuous clamp band and reduced component count, enabling simpler and more cost-effective manufacturing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the hose clamp uses multiple separate components (spring assembly, positioners, clamp band), then the positioning and clamping functions are reliable, but the manufacturing complexity and cost increase

Engineering Contradiction:
Improvepositioning and clamping functionVSAvoidnumber of components
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the spring assembly and positioner into a single integrated component. The positioner is formed as one piece with the spring assembly, eliminating the need for separate positioner components that were previously attached to the spring assembly. This merging maintains the positioning and clamping functions while reducing the total number of components and simplifying manufacturing.

Inventive Principle:
Principle #5Merging (Combining)

2Ease of manufacture

If the clamp band is made continuous without interruptions, then the structural integrity and simplicity improve, but the integration of functional components becomes more difficult

Engineering Contradiction:
Improveclamp band simplicityVSAvoidcomponent integration
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The patent nests the spring assembly and positioner within the continuous clamp band structure. The integrated spring assembly with positioner is positioned inside the clamp band circumference, allowing the clamp band to remain continuous while accommodating the functional components. This nesting approach maintains the simplicity of the continuous clamp band while integrating the necessary clamping and positioning functions.

Inventive Principle:
Principle #7Nested doll (Nesting)

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 design simplifies production, reduces material usage, and ensures a stable and secure hold on hoses with fewer components, resulting in shorter cycle times and potentially lower material costs.

Implementation Method 1

a spring arrangement with an inner band and a wave spring is arranged on a radial inner side of the clamp band

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP3380771B1Hose clamp
Publication Date: 2021.06.02 NORMA GERMANY GMBH
  • EP3380771B1 patent drawingFigure 1~2

AI summary

The invention relates to a hose clamp having a clamping strip (2), a clamping device and a positioning arrangement with at least one positioner (8) which has a base (11) and a claw (12) that can be pressed into a hose wall. According to the invention, a spring arrangement having an inner strip (16) and a wave washer (17) is arranged on a radial inner side of the clamping strip (2), the positioner (8) being arranged on the inner strip (16) of the spring arrangement.