Hose Coupling Clamp Nut With Haptic Region

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Solution Overview

Problem

The existing watering equipment requires frequent screwing and unscrewing operations when reconfiguring hoses and water applicators, which is time-consuming and tedious, necessitating a solution for quick and efficient connection and disconnection.

Innovation Solution

A hose coupling device with a clamp nut design featuring a haptic region that guides the user's fingers for force application, combined with a screw nut that clamps the hose, allowing for quick coupling and decoupling without repeated screwing operations, and a main body with a through channel for water flow.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional screwing operations are used to connect and disconnect hoses and applicators, then the connection is secure and reliable, but the operation becomes time-consuming and tedious

Engineering Contradiction:
Improveconnection reliabilityVSAvoidtime for screwing operations
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The connection system is divided into two distinct parts: a male connector that remains permanently attached to the water tap, and a female connector on the hose that can be quickly attached and detached. This segmentation allows the permanent part to maintain secure connection while the removable part enables quick reconfiguration without screwing operations.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The male connector is pre-installed and permanently fixed to the water tap in advance. This preliminary action eliminates the need to repeatedly screw and unscrew connectors during reconfiguration, as only the female connector needs to be attached or detached from the hose end.

Inventive Principle:
Principle #10Preliminary action

2Productivity

If quick coupling solutions are implemented to reduce screwing operations, then the operation speed increases, but the device complexity increases due to additional components

Engineering Contradiction:
Improvereconfiguration speedVSAvoidconnector system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The male connector serves multiple functions: it provides a permanent attachment point on the water tap, acts as a quick-connect interface, and eliminates the need for separate coupling mechanisms. This multi-functionality achieves quick reconfiguration without significantly increasing overall system complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The complex screwing mechanism is extracted and replaced with a simpler quick-connect interface. The male connector removes the need for repeated threading operations by providing a permanent, pre-installed connection point that requires only simple attachment/detachment of the female connector.

Inventive Principle:
Principle #2Taking out (Extraction)

3Ease of operation

If the haptic region is positioned at the ends of the screw nut for easy grasping, then the ease of operation improves, but the manufacturing precision requirement increases due to threading constraints

Engineering Contradiction:
Improvegrasping easeVSAvoidthreaded portion positioning
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The screw nut is designed with different properties at different locations: the ends provide grasping surfaces for ease of operation, while the middle section contains the threaded portion for precise engagement. This local differentiation allows each region to optimize its function without compromising the other.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The haptic region is positioned in the axial dimension of the screw nut, spaced from both ends, creating a distinct grasping zone separate from the threaded engagement zone. This spatial separation in one dimension allows independent optimization of grasping ease and threading precision without conflict.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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 significantly improves user experience by reducing the need for repeated screwing and unscrewing, enhancing mobility and reconfiguration of watering equipment, while maintaining durability and ease of operation.

Implementation Method 1

An internal periphery of the annular body includes a threaded portion at the first end of the annular body

Methodology Applied
Scientific EffectScrew mechanism: Screw

Implementation Method 2

The haptic region can be felt by the user and naturally guides the user's fingers to a desirable location on the clamp nut for the application of force

Methodology Applied
Scientific EffectTactile feedback:

Implementation Method 3

selectively facilitate engagement of the hose coupling portion with a hose inserted at the hose coupling portion by exerting a clamping force on the hose responsive to tightening of the screw nut

Methodology Applied
Scientific EffectClamping force: Mechanical Force

Data Source

PatentEP3114384B1Clamp nut for quick hose coupling
Publication Date: 2019.09.11 HUSQVARNA AB
  • EP3114384B1 patent drawingFigure 1A~1B
  • EP3114384B1 patent drawingFigure 1C
  • EP3114384B1 patent drawingFigure 2A~2C

AI summary

A hose coupling device (100) comprising:a main body (110) defining a through channel (112) for water flow between a first end (114) of the device (100) to a second end (116) of the device (100), the through channel (112) extending along an axis (118) of the device (100), the main body (110) further defining a coupler receiver portion (140) disposed at the first end (114) of the device (100) and a hose coupling portion (150) disposed at the second end (116) of the device (100); a sleeve portion (120) slidably engaging the main body (110) to releasably engage a coupler received in the coupler receiver portion (140) based on movement of the sleeve portion (120) in an axial direction (152); and a screw nut (130) disposed proximate to the hose coupling portion (150) to selectively facilitate engagement of the hose coupling portion (150) with a hose (170) inserted at the hose coupling portion (150) by exerting a clamping force on the hose (170) responsive to tightening of the screw nut (130), wherein the screw nut (130) comprises an annular body having first end (200) and a second end (210), wherein an internal periphery of the annular body includes a threaded portion (212) at the first end (200) of the annular body, wherein an external periphery of the annular body includes a haptic region (180) extending around the external periphery, the haptic region (180) being disposed at a portion of the external periphery that is spaced apart from both the first end (200) and the second end (210) of the annular body, the haptic region (180) extending over less than half of a length of the screw nut (130 in the axial direction (152).