Toggle-Lever Mop Press for Low-Effort Wiper Squeezing
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Solution Overview
Problem
Existing mop wringers require complex sequences of movements and significant effort to operate, making them inefficient for squeezing out liquid from mop covers.
Innovation Solution
A compact mop wringer design featuring a toggle lever mechanism with a stationary first pressing jaw and a press lever that allows for easy actuation with minimal effort, enabling the device to be closed and opened with single lever movements and self-locking in the closed position, reducing the need for continuous force application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a pressing lever with toggle lever mechanism is used, then the effort required to operate the device is reduced, but the device complexity increases
Solution Approach 1:
The pressing lever is designed to move between a retracted position and a pressed position, dynamically changing the state of the squeezing device. The toggle lever mechanism provides dynamic mechanical advantage that reduces operating effort while maintaining structural integrity
Solution Approach 2:
The toggle lever mechanism is configured to automatically lock the pressing lever in the pressed position, eliminating the need for continuous force application. The device self-maintains the squeezing state through the mechanical properties of the toggle lever, reducing user effort to merely initiating and releasing the action
2Force
If multiple movement steps are required to operate the device, then the squeezing force can be effectively applied, but the operation sequence becomes complex
Solution Approach 1:
The support elements are pre-positioned within the squeezing device body, ready to engage with the mop holder as it is inserted. This preliminary arrangement eliminates the need for separate positioning steps and allows the squeezing action to follow directly after insertion
Solution Approach 2:
The insertion movement of the mop holder and the activation of the pressing lever are combined into a single operational sequence. The support elements are designed to be engaged during insertion itself, merging two previously separate actions (insertion and pressing) into one continuous motion
3Force
If the pressing jaw is made movable to apply force, then the squeezing function is achieved, but the device structure becomes more complex
Solution Approach 1:
The pressing function is segmented from the main squeezing mechanism. Instead of moving the entire pressing jaw assembly, only the pressing lever is made movable while the pressing jaw remains fixed to the squeezing device body, reducing structural complexity
Solution Approach 2:
The pressing lever acts as an intermediary element that transmits force from the user to the support elements. This mediator allows force application without requiring direct movement of the pressing jaw, simplifying the overall structure while maintaining effective squeezing capability
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 device can be actuated with a simple sequence of movements, reducing the effort required to squeeze out liquid from mop covers and allowing for easy operation, with the toggle lever mechanism ensuring the device remains closed without additional force, enhancing user convenience and efficiency.
Implementation Method 1
the pressing lever (32) comprises a toggle lever mechanism (46), consisting of a toggle lever section (48) which is part of the pressing lever (32) and extends between a first bearing (42) and a second bearing (50) arranged stationary on the pressing lever (32), with a toggle lever element (52) which is mounted on the second bearing (50) so as to be pivotable relative to the pressing lever (32) and which is attached via a third bearing (54) to the first pressing jaw (18)
Implementation Method 2
a first, essentially plate-shaped pressing jaw (18) and a second, essentially plate-shaped pressing jaw (20), which are connected to one another in the region of their respective first end via a joint (40)
Data Source
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AI summary
A device for squeezing liquid-absorbing wiper bodies comprises a first, essentially plate-shaped press jaw (18), and a second, essentially plate-shaped press jaw (20), which are connected to each other in the region of their respective first ends via a hinge (40), as well as a press lever (32) which is pivotally connected to the second press jaw (20) in the region of the second end of the second press jaw (20) via a first bearing (42).The device is characterized in that the first press jaw (18) is arranged in a fixed position relative to the pressing device and the press lever comprises a toggle lever section (48) between the first bearing (42) and a second bearing (50) arranged in a fixed position on the press lever (32), wherein a toggle lever element (52) is attached to the second bearing (50) which forms a rigid connection between the second bearing (50) and a third bearing (54) in the area of the second end of the first press jaw (18).