Cleaning sheet and cleaning instrument
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Solution Overview
Problem
Existing cleaning tools lack a rational constructing technique that ensures easy attachment and secure locking of the cleaning element to the holder, leading to potential detachment during use.
Innovation Solution
A cleaning sheet with a receiving part that has a first space region for easy insertion and a second space region for secure locking, along with a guide part and high rigidity areas, to prevent detachment of the holder during cleaning operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the cleaning element holder is designed with a simple attachment structure, then the device complexity is reduced, but the reliability of attachment and resistance to detachment during use deteriorates
Solution Approach 1:
The receiving part is segmented into two distinct space regions: a first space region with larger width for easy insertion, and a second space region with smaller width for secure locking. This segmentation allows the same structure to provide both ease of attachment and secure retention without requiring complex additional components.
Solution Approach 2:
Different regions of the receiving part have different local qualities in terms of width. The first space region has a larger width to facilitate insertion, while the second space region has a smaller width to provide locking. This local variation in geometric properties enables the structure to simultaneously achieve ease of attachment and secure retention.
2Manufacturing precision
If the receiving part has a uniform width, then the manufacturing precision is simplified, but the ease of operation for both insertion and locking deteriorates
Solution Approach 1:
The receiving part is divided into two operational zones along the insertion direction: a first space region for insertion and a second space region for locking. This segmentation allows each region to be optimized for its specific function while maintaining a relatively simple overall geometry that is easy to manufacture.
Solution Approach 2:
Instead of varying width in the transverse direction only, the patent varies the width along the insertion direction (first axis), creating a tapered or stepped geometry. This dimensional approach allows easy insertion at the opening while providing secure locking deeper inside, without requiring complex multi-directional variations.
3Volume of moving object
If the receiving part has a narrow opening, then the cleaning sheet structure is more compact, but the ease of operation for inserting the holder deteriorates
Solution Approach 1:
The receiving part utilizes the insertion direction (first axis) as an additional dimension to resolve the conflict between compactness and ease of insertion. The width varies along this axis, being larger near the opening for easy insertion and smaller in the locking region for compactness, effectively using longitudinal variation to achieve both goals.
Solution Approach 2:
The receiving part is segmented into a first space region with larger width for easy insertion and a second space region with smaller width for compact locking. This segmentation allows the opening to be sufficiently large for easy holder insertion while the overall structure remains compact due to the narrower locking region.
Data Source
AI summary
A cleaning sheet includes an aperture and a housing space. The housing space further includes a first space region, and a second space region which is shorter than the first space region. The first space region is disposed closer to the aperture than the second space region.