Adjustable Liquid Applicator Handle for Reduced Hand Fatigue
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Solution Overview
Problem
Users experience fatigue and inconsistency in applying liquids, such as paint, due to hand and arm tension when using traditional paint applicators for extended periods, leading to uneven coatings.
Innovation Solution
An adjustable handle with a fluidic channel and trigger system that allows for customizable grip positioning through adjustment mechanisms, reducing user fatigue by increasing the distance between the grip and frame, thereby alleviating tension and irritation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional fixed handle design is used, then the device structure is simple, but the user experiences hand and arm fatigue during extended use
Solution Approach 1:
The handle incorporates an adjustment mechanism that allows the grip position to be dynamically changed relative to the frame. This enables the handle structure to adapt during use, transforming from a static fixed design to a dynamic adjustable one, thereby improving user comfort without excessive complexity
Solution Approach 2:
The invention changes the geometric parameter of the handle by allowing adjustment of the distance between the grip and the frame. This parameter modification enables customization of the handle to fit different user hand sizes and preferences, resolving the contradiction between simplicity and comfort
2Ease of operation
If the grip is positioned close to the frame, then the handle structure is compact, but the user experiences tension and irritation in the hand
Solution Approach 1:
The adjustment mechanism enables the grip position to be dynamically repositioned along the frame, allowing users to increase the distance between grip and frame when experiencing hand tension, thus converting a static compact structure into a dynamic adjustable one that responds to user comfort needs
Solution Approach 2:
The handle is segmented into adjustable components where the grip can be independently positioned relative to the frame through the adjustment mechanism. This segmentation allows the grip distance to be modified without affecting the overall structural integrity of the handle
3Productivity
If extended periods of use occur, then productivity increases, but the user experiences fatigue leading to inconsistent application
Solution Approach 1:
The adjustable handle allows users to dynamically modify the grip position during extended application periods, adapting to changing hand fatigue levels. This dynamic adjustment maintains application consistency by enabling users to reposition their grip for comfort, preventing the deterioration of application quality over time
Data Source
AI summary
An applicator is presented. The applicator comprises a fluidic channel extending from a fluid inlet to a fluid outlet. The applicator also comprises a trigger. The trigger is configured to, when actuated, allow fluid to flow through the fluidic channel. The applicator also comprises an adjustable handle with a frame. The handle comprises a finger rest on a first side of the frame. The handle also comprises a grip on a second side of the frame. The second side is opposite the first side. The grip is coupled to the frame by an adjustment mechanism that, when actuated, is configured to change a distance between the finger rest and the grip.