Robot Cleaner Pad Structure for Front Dirt Collection
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Solution Overview
Problem
Conventional cleaning pads for robot cleaners have unsatisfactory cleaning effects due to dirt accumulation at the front portion, as they are in full contact with the floor, leading to inefficient dirt collection.
Innovation Solution
A cleaning pad design featuring a pad body with a back piece, an absorbent sheet, and a water-permeable web with a downward draping unit that incrementally decreases in height and width, allowing for effective dirt collection and adhesion, with the water-permeable web's front marginal end reaching dirt particles first and the absorbent sheet underneath capturing them.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cleaning pad is configured with a substantially flat bottom surface in substantially full contact with the floor surface, then the cleaning pad can maintain stable contact with the floor, but dirt particles accumulate at the front portion leading to unsatisfactory cleaning effect
Solution Approach 1:
The bottom surface of the cleaning pad is segmented into multiple downward draping members with different heights instead of a single flat surface. This segmentation allows different portions of the pad to contact the floor at different times, preventing dirt accumulation and improving cleaning effectiveness while maintaining stable contact.
Solution Approach 2:
The invention transitions from a two-dimensional flat bottom surface to a three-dimensional structure with multiple draping members of varying heights. This dimensional change creates a stepped profile that improves dirt collection by allowing the front portions to contact the floor first, then progressively engage rear portions, thereby enhancing cleaning performance.
2Ease of manufacture
If the cleaning pad uses a conventional flat design, then the structure is simple and easy to manufacture, but the cleaning efficiency is reduced due to dirt accumulation
Solution Approach 1:
The cleaning pad incorporates a dynamic stepped structure where the downward draping members are arranged to progressively contact the floor during forward motion. This dynamic engagement pattern allows the pad to adapt to the cleaning process, improving efficiency without requiring complex assembly or manufacturing procedures.
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 enhances cleaning efficiency by allowing the water-permeable web to shield the absorbent sheet, ensuring that a larger amount of dirt is collected and adhered, providing a satisfactory cleaning effect.
Implementation Method 1
The absorbent sheet is disposed to underlie the lower major surface of the back piece
Data Source
AI summary
A cleaning pad for a robot cleaner includes a back piece, an absorbent sheet, and a water permeable web. The water permeable web has a web body which is of such a dimension as to form a downward draping unit to shield the absorbent sheet. The downward draping unit is embossed toward the back piece and along at least one line oriented in a lengthwise direction to form successive downward draping members each defining a height between a lowermost area thereof and a lower major surface of the back piece. The heights of the successive downward draping members are incrementally decreased from a rearmost one of the successive downward draping members to a frontmost one of the successive downward draping members.