Linear Scooter Wiper with Rectangular Frame

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Solution Overview

Problem

Existing windshield wiper devices for scooters are not adaptable to all types of windshields and have limited cleaning surfaces due to their circular motion, and known systems for trucks are complex and bulky.

Innovation Solution

A windshield wiper device with a rectangular frame and a longitudinally sliding brush, powered by an electric motor or manual handle, allowing for linear motion on the windshield, making it versatile and effective for various shapes and sizes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a circular motion brush is used in traditional wiper devices, then the device can be mounted on some windshields, but the useful cleaning surface is very limited and cannot be fitted on all types of windshield

Engineering Contradiction:
Improveadaptability to different windshield shapesVSAvoiduseful cleaning surface area
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The patent inverts the traditional circular motion path into a linear reciprocating motion along the windshield surface. The brush moves back and forth in a straight line rather than rotating in a circle, which allows the cleaning path to extend across the entire width of various windshield shapes, thereby increasing both adaptability and useful cleaning surface area.

Inventive Principle:
Principle #13The other way round (Inversion)

Solution Approach 2:

The invention transitions from a two-dimensional circular arc motion to a one-dimensional linear reciprocating motion that can be extended along the length of the windshield. This dimensional change allows the brush to cover a larger area by moving along the longitudinal axis of the windshield while maintaining contact across the width, solving the limitation of fixed circular paths.

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

2Productivity

If a circular motion brush is used, then the device structure is simple, but the cleaning effectiveness is reduced due to limited useful surface

Engineering Contradiction:
Improvecleaning effectivenessVSAvoidcleaned area on windshield
Core Design Contradiction:
ProductivityVSArea of stationary object

Solution Approach 1:

By inverting the circular motion to linear reciprocating motion, the brush traverses the entire width of the windshield during each stroke, maximizing the cleaned area per cycle. This motion inversion directly improves cleaning effectiveness by ensuring complete coverage of the useful windshield surface.

Inventive Principle:
Principle #13The other way round (Inversion)

Solution Approach 2:

The linear reciprocating motion ensures continuous coverage of the windshield surface without gaps or missed areas. The brush maintains constant contact with the windshield throughout its travel, providing uninterrupted cleaning action across the entire cleaned area, thereby enhancing overall productivity and cleaning effectiveness.

Inventive Principle:
Principle #20Continuity of useful action

3Reliability

If a dedicated casing with complex transmission system is used for truck mirror cleaning, then the cleaning function is effective, but the device becomes complicated and bulky

Engineering Contradiction:
Improvecleaning function effectivenessVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the essential cleaning function from the complex dedicated casing system used in truck mirrors. By removing unnecessary housing and transmission components, the invention retains only the critical elements needed for effective cleaning, thereby simplifying the overall device structure while maintaining cleaning reliability.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The wiper device is designed to be integrated directly into the windshield structure, where the windshield itself serves as part of the mounting and guiding system. This self-service approach eliminates the need for separate dedicated casings and complex external transmission systems, reducing device complexity while maintaining effective cleaning function through the linear reciprocating motion mechanism.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP3274219B1Windshield wiper device for a windshield of a scooter or the like
Publication Date: 2020.08.19 BOVI ANNAMARIA
  • EP3274219B1 patent drawingFigure 1
  • EP3274219B1 patent drawingFigure 2
  • EP3274219B1 patent drawingFigure 3

AI summary

There is provided a wiper device for a windshield (100) of a scooter or the like, which it is characterized by comprising a frame (1) which is substantially constituted by a rectangular quadrilateral, said frame (1) being mounted in a fixed manner onto a surface (101) of said windshield (100), and a longitudinal brush (2) to clean the surfaces (101) of the windshield (101), and the brush (2) being adapted to slide with linear motion onto said surface (101) and between two opposite sides of the rectangular frame (1).