Hose Clamp with Expansion Restricting Section for Alignment

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Solution Overview

Problem

Existing hose clamps suffer from assembly defects and fluid leaks due to oblique assembly and enlarged gaps between clamp body ends, leading to inefficient hose tightening and potential fluid leakage.

Innovation Solution

A hose clamp design featuring a clamp body formed by bending a strip-shaped leaf spring material with operation sections that expand in diameter using elastic deformation, incorporating a locking section, engagement portion, expansion restricting section, and tilt prevention sections to maintain proper alignment and prevent divergence during tightening, ensuring secure assembly and leak prevention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the locking section is engaged with the engagement portion to maintain the clamp body in a diameter expansion state, then the clamp body can be temporarily assembled, but at the time of release, both operation sections may diverge in opposite directions causing oblique assembly and enlarged gaps

Engineering Contradiction:
Improvetemporary assembly capabilityVSAvoidalignment precision
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The expansion restricting section is designed to preemptively counteract the diverging tendency of operation sections when the locking section disengages from the engagement portion. By providing frictional resistance before divergence occurs, it prevents oblique assembly and maintains proper alignment of the clamp body with the hose throughout the tightening process.

Inventive Principle:
Principle #9Preliminary anti-action

Solution Approach 2:

The expansion restricting section acts as an intermediary element between the operation sections, providing a controlled frictional interaction that mediates the release process. This intermediary mechanism ensures that operation sections diverge smoothly without causing misalignment or gap enlargement.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If the operation sections diverge in opposite directions during release, then the clamp body can tighten the hose, but the gap between end portions is enlarged causing assembly defects and fluid leaks

Engineering Contradiction:
Improvetightening functionVSAvoidleak prevention
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The expansion restricting section provides preliminary frictional resistance to operation sections during the release process, preventing excessive divergence that would cause gap enlargement. This ensures the clamp body maintains proper contact with the hose throughout tightening, preventing assembly defects and fluid leaks while still achieving the necessary tightening function.

Inventive Principle:
Principle #9Preliminary anti-action

3Adaptability or versatility

If the clamp body is expanded in diameter using elastic deformation, then the hose can be inserted, but the operation sections may diverge causing oblique assembly

Engineering Contradiction:
Improvediameter expansion capabilityVSAvoidassembly alignment
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The expansion restricting section is designed to counteract the diverging tendency of operation sections that occurs during and after diameter expansion. By providing frictional resistance, it ensures that the clamp body maintains proper alignment with the hose throughout the expansion and tightening process, preventing oblique assembly while preserving the necessary adaptability for hose insertion.

Inventive Principle:
Principle #9Preliminary anti-action

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 design effectively prevents assembly defects and fluid leaks by maintaining proper alignment and sealing during hose tightening, ensuring a secure and leak-free connection between the hose and connection pipe.

Implementation Method 1

the clamp body is expanded in diameter by using elastic deformation by bringing the pair of operation sections close to each other

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Implementation Method 2

tightening of a hose is made possible by diameter reduction by an elastic restoring force of the clamp body

Methodology Applied
Scientific EffectElastic restoring force: Elasticity

Data Source

PatentUS9239124B2Hose clamp
Publication Date: 2016.01.19 TOGO SEISAKUSYO CORP
  • US9239124B2 patent drawing
  • US9239124B2 patent drawing
  • US9239124B2 patent drawing

AI summary

A hose clamp for preventing a leak during tightening of a hose includes a clamp body of a strip-shaped leaf spring material with an annular shape, and a pair of operation pieces. The clamp body maintained in a diameter expansion state by a locking claw of the operation piece engaged with an engagement concavity of the other operation piece. The engagement released by bringing the operation piece close to the other operation piece and moving the operation piece in the opposing direction in an axial direction of the clamp body, whereby reducing the clamp body diameter. An expansion restricting piece restricts divergence of both the operation pieces in opposite directions in the axial direction of the clamp body. Further, a tilt prevention section which prevents the clamp body from being obliquely assembled to a hose during tightening of the hose is provided.