Manual cleaning tool
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Solution Overview
Problem
Existing manual cleaning tools suffer from plastic deformation, such as bending, when removing the roller brush, and they lack a reliable mechanism to maintain the closed and open states of the lid.
Innovation Solution
A manual cleaning tool design featuring a roller brush with a rigid shaft that can be elastically deformed for removal, and a lid mechanism with pivotable support and holders to maintain open and closed states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the core member is formed of wires to enable removal from support portions, then the roller brush can be removed and replaced, but plastic deformation such as bending of the wires occurs during removal
Solution Approach 1:
The core member material properties are changed from ordinary metal wires to elastic metal wires with specific elasticity parameters. This allows the core member to temporarily deform during removal and then recover its original shape, resolving the contradiction between removability and shape stability.
Solution Approach 2:
The core member is designed as a flexible elastic metal wire structure that can bend and deform elastically. This flexibility enables the roller brush to be removed from support portions without causing permanent deformation, as the elastic wire returns to its original shape after deformation.
2Ease of operation
If the lid is pivotably mounted to open and close the discharge port, then the discharge port can be opened for cleaning access, but the lid may accidentally open or fail to maintain closed state
Solution Approach 1:
A lid holder is provided that preliminarily counteracts the tendency of the lid to accidentally open. The holder engages with the lid in the closed position, providing a preliminary restraining force that prevents unintended opening while allowing intentional opening when needed.
Solution Approach 2:
The lid holder acts as an intermediary mechanism between the lid and the discharge port. It mediates the lid's movement by providing stable positioning in both open and closed states, ensuring the lid maintains its intended state without accidental transitions.
3Reliability
If the roller brush is tightly fixed in the casing for stable operation, then cleaning performance is improved, but the roller brush becomes difficult to remove for replacement
Solution Approach 1:
The support portions are designed with dynamic characteristics that allow them to elastically deform during insertion and removal operations. During normal operation, the support portions maintain tight fixation for stable cleaning performance. During removal, the elastic deformation of support portions creates clearance that facilitates easy extraction of the roller brush.
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 tool effectively suppresses plastic deformation during roller brush removal and ensures reliable operation of the lid mechanism, enhancing cleaning efficiency and tool durability.
Implementation Method 1
The roller brush is removable from the frame main body under an elastically deformed state of the rigid shaft
Implementation Method 2
a lid pivotably mounted to the frame main body and configured to open and close the discharge port
Data Source
AI summary
The present invention includes a roller brush provided in a frame main body. The roller brush includes a rigid shaft, a pair of guide rollers, which are arranged concentrically with a shaft center line of the rigid shaft, and are mounted to shaft ends of the rigid shaft, and a cleaning brush cloth including cut piles raised from a cloth front surface of a foundation cloth. The cleaning brush cloth is helically wound around a shaft outer-peripheral surface of the rigid shaft with a cloth back surface of the foundation cloth being in contact with the shaft outer-peripheral surface, and is fixed to the rigid shaft.