Trigger-Actuated Hand-Held Wringer for Single-Pass Water Removal
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Solution Overview
Problem
Existing hand-held wringers for drying vehicles are either inconveniently fixed or portable but lack mobility, require excessive force, and often fail to evenly remove water from chamois due to mechanical issues, posing challenges for users with back problems and those needing to dry vehicles quickly.
Innovation Solution
A hand-held wringer with a support structure, trigger mechanism, and rollers that allow for easy operation without a hand crank, providing adjustable force and mobility, allowing users to expel liquid from materials like chamois without needing a fixed surface, and featuring a locking mechanism for convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed wringer is used, then water removal effectiveness is improved, but mobility and convenience are worsened
Solution Approach 1:
The wringer device transitions from a fixed stationary structure to a handheld mobile structure that can be dynamically moved and positioned by the user, resolving the contradiction between water removal effectiveness and mobility by making the entire wringer system portable while maintaining its functional performance
2Ease of operation
If a hand crank mechanism is used, then roller operation is achieved, but user fatigue and operational complexity increase
Solution Approach 1:
The complex hand crank mechanism is extracted and replaced with a simple trigger-actuated system that uses spring-loaded rollers, eliminating unnecessary mechanical complexity while maintaining the ability to operate the rollers effectively
Solution Approach 2:
The rollers are designed to be self-actuating through a trigger mechanism that releases stored spring energy, eliminating the need for continuous manual cranking and reducing operational complexity
3Reliability
If strong hand force is applied for wringing, then water expulsion effectiveness is improved, but accessibility for users with weak hands is worsened
Solution Approach 1:
The manual hand-wringing mechanical action is replaced with a spring-loaded roller system that provides consistent mechanical force, eliminating the need for users to generate strong hand forces while maintaining effective water expulsion
Solution Approach 2:
The force application mechanism changes from variable human hand strength to consistent spring-loaded force, ensuring uniform and sufficient pressure is applied to the material regardless of user strength
4Reliability
If the chamois is wrung multiple times, then complete drying is improved, but time consumption and user effort increase
Solution Approach 1:
The device enables a single-pass effective wringing action that replaces multiple repetitive wringing cycles, achieving complete drying in one operation and eliminating time-consuming repeated efforts
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 hand-held wringer effectively removes water from various materials, extends their lifespan, is easy to use, and can be safely operated by inexperienced users, ensuring efficient drying without water spots, while being portable and affordable.
Implementation Method 1
A biasing member, attached to the back end of frame on one end and the trigger on the other, provides the necessary biasing force to revert the trigger handle to the release position
Data Source
AI summary
The present invention provides a hand-held wringer for removing liquid from a wet or damp material. A wet or damp material is placed between two rollers and a trigger handle is engaged to reduce the space between one roller's axis relative to an opposite roller's axis so as to expel liquid from every fiber of the material as it is pulled therethrough.