Laundry Drain Hose Venting Clip for Leak-Safe Pump-Out Assembly

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Solution Overview

Problem

Existing suds pumping lines for laundry care appliances are complex and costly to assemble, with known configurations being error-prone and requiring multiple components for ventilation and sealing, leading to inefficient assembly and potential leaks.

Innovation Solution

A suds pumping line featuring a corrugated hose with an integral ventilation device and a one-piece plastic clamp for easy attachment, which includes a latching device and positioning elements for precise alignment, reducing the need for additional components and simplifying assembly, while also providing a compact sealing mechanism.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a complex hose holder with multiple O-rings and separate components is used for ventilation and sealing, then sealing reliability is improved, but device complexity and assembly cost increase

Engineering Contradiction:
Improvesealing reliabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the hose holder, ventilation device, and sealing elements into a single integrated component. The hose holder is formed as one piece with the ventilation opening and includes an integrated O-ring seal, eliminating the need for separate connecting pieces and multiple sealing elements. This merging reduces the number of parts while maintaining sealing reliability through the integrated design.

Inventive Principle:
Principle #5Merging (Combining)

2Adaptability or versatility

If multiple separate components and hose clamps are used for assembly, then adaptability is improved, but ease of manufacture and assembly time worsen

Engineering Contradiction:
Improveassembly flexibilityVSAvoidassembly ease
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent segments the integrated hose holder into functional zones: a corrugated section for flexibility, a smooth section for connection, and an integrated ventilation device with sealing. This segmentation allows each zone to perform its specific function optimally while the entire component remains a single piece that is easy to manufacture and assemble.

Inventive Principle:
Principle #1Segmentation

3Reliability

If a return tank with larger cross-section is integrally formed in the hose, then ventilation capacity is improved, but device complexity and assembly precision requirements increase

Engineering Contradiction:
Improveventilation capacityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements local quality by providing a smooth outer surface on the hose holder specifically in the region where the ventilation device is formed. This localized smooth surface facilitates easy attachment of the ventilation component without requiring the entire hose to be smooth or complex, thus improving ventilation capacity while maintaining manufacturing simplicity.

Inventive Principle:
Principle #3Local quality

Data Source

PatentEP2794980B1Detergent solution pump-out section for a domestic appliance for the care of laundry items, and corresponding domestic appliance having a detergent solution pump-out section
Publication Date: 2015.11.18 BSH HAUSGERATE GMBH
  • EP2794980B1 patent drawingFigure 1~4

AI summary

The invention relates to a detergent solution pump-out section (14) for a domestic appliance (1) for the care of laundry items, comprising a pump-out hose (15) that is in some sections configured as a corrugated pipe and integrally comprises an aeration device (21) having an aeration opening (22) that is formed on a jacket side (20) of the pump-out hose (15), and comprising a drain element (17) having a drain connector (24), the drain element being attachable in the area of the aeration opening (22) to the jacket side (20) of the pump-out hose (15), wherein the drain element (17) is a rectilinear single-piece clip made of plastic. The invention further relates to a domestic appliance (1) for the care of laundry items that has a detergent solution pump-out section (14).