Window Cleaner Wiper Cover Layout for Smooth Frame Cleaning

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Solution Overview

Problem

Existing window cleaning devices are inadequate for cleaning both window panes and frames, as they lack the necessary design features to effectively wipe the frame without causing jerking or adhesive contact.

Innovation Solution

A window cleaning device with an elongate base body featuring a mop cover that covers at least one end face, a squeegee lip, and a wiper cover, where the pull-off lip is beveled and longer than the base body, allowing smooth guidance along the frame and easy replacement of the mop cover via Velcro connections, enabling effective cleaning of both panes and frames.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the window cleaning device is designed to clean only the pane, then the cleaning function for the pane is effective, but the window frame cannot be cleaned

Engineering Contradiction:
Improvecleaning capabilityVSAvoiddevice structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The mop cover is extended to cover the end faces of the base body, enabling the device to perform multiple functions: cleaning both the window pane (via the squeegee lip) and the window frame (via the mop cover on end faces), thus resolving the contradiction between versatility and device complexity

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

2Ease of operation

If the pull-off lip contacts the window frame, then the device can be guided along the frame, but jerking and adhesive contact occur

Engineering Contradiction:
Improveguidance smoothnessVSAvoidadhesive contact
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The pull-off lip is beveled at its ends, creating a localized geometric modification that prevents adhesive contact with the window frame while maintaining smooth guidance, thus resolving the contradiction between ease of operation and harmful factors

Inventive Principle:
Principle #3Local quality

3Productivity

If the squeegee lip is the same length as the base body, then the device structure is simple, but the washed web cannot be pulled off completely up to corners

Engineering Contradiction:
Improvecleaning completenessVSAvoidsqueegee lip length
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The squeegee lip is extended beyond the length of the base body, providing excessive length that enables complete removal of the washed web up to the corners where the pane meets the frame, thus resolving the contradiction between productivity and device complexity

Inventive Principle:
Principle #16Partial or excessive 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

Enables efficient cleaning of both window panes and frames without jerking or adhesive contact, with the mop cover and squeegee lip designed for seamless operation, ensuring thorough and smooth cleaning up to corners.

Implementation Method 1

the mop cover is attached to the base body by a Velcro connection

Methodology Applied
Scientific EffectVelcro: Velcro

Implementation Method 2

the mop cover is attached to the base body by a Velcro connection

Methodology Applied
Scientific EffectAdhesive: Adhesive

Data Source

PatentEP1872701B1Window cleaning device
Publication Date: 2009.06.03 LEIFHEIT
  • EP1872701B1 patent drawingFigure 1
  • EP1872701B1 patent drawingFigure 2
  • EP1872701B1 patent drawingFigure 3

AI summary

The device (1) has a pulling lip (3) and a wiping cover (14) arranged on an elongated base body along its longitudinal extension, where the wiping cover covers one of the front surfaces of the base body. The wiping cover is arranged parallel to the pulling lip, and the base body has a laminar contact surface (4), which supports a part of the wiping cover, where the contact surface is arranged parallel to the pulling lip. The wiping cover is fastened at the base body by a clinging-type connection, and is formed as cleaning fleece and/or cleaning sponge and/or wiping cloth and/or fur.