Work Tool Handle Layout for Grip and Display Visibility
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Solution Overview
Problem
Existing work tools with handlebars and grips interfere with ergonomic performance and visibility of control and display elements, leading to reduced operational efficiency.
Innovation Solution
A handle design with a shaft having a fixed end and a free end, featuring a display device and control elements positioned close to the fixed end, allowing ergonomic grip and simultaneous control/display of multiple functions without obstructing the operator's view or touch.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If control elements and display devices are arranged on the handle for easy access, then ease of operation is improved, but the operator's grip and visibility are obstructed
Solution Approach 1:
The handle is divided into distinct functional zones: a first holding section for ergonomic gripping, a second holding section for alternative grip positions, and a separate display device positioned on the inner surface. This segmentation allows each zone to serve its specific function without interfering with others, resolving the conflict between control accessibility and grip comfort.
Solution Approach 2:
The display device is positioned on the inner surface of the handle rather than the outer surface, utilizing the third dimension (depth/inner-outer orientation) to relocate the display. This dimensional change allows the display to be visible and accessible without obstructing the operator's external grip on the handle.
2Adaptability or versatility
If multiple control elements are added to the handle, then device functionality is improved, but the handle structure becomes more complex
Solution Approach 1:
Multiple control elements are integrated into a unified display device structure on the inner surface of the handle. The display device serves as a consolidated control interface that can display and control multiple device functions simultaneously, reducing structural complexity compared to having separate physical controls for each function.
Solution Approach 2:
The display device is designed as a multi-functional control interface that can display various operating information and control multiple device functions through a single integrated unit. This universal design allows one structure to serve multiple purposes, avoiding the need for separate control elements for each function.
3Loss of information
If the display device is positioned for visibility, then information transmission is improved, but the operator's grip area is reduced
Solution Approach 1:
The display device is positioned on the inner surface of the handle, utilizing the depth dimension to achieve visibility without occupying external grip space. This allows the display to be viewed by the operator while the outer surface remains fully available for ergonomic gripping.
Solution Approach 2:
The handle surface is segmented into external grip areas and an internal display area. This spatial segmentation separates the functions of gripping and displaying, allowing both to be optimized independently without compromising either grip area or display visibility.
Data Source
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AI summary
The invention relates to a handle for a hand-held work device, wherein the handle (6, 7) has a shaft (8) having a fastening end (9) and a free end (10) and extending from the fastening end (9) to the free end (10) over a shaft length (a), wherein the shaft (8) of the handle (6, 7) is fixed at the fastening end (9), wherein the handle (6, 7) has a first control element (11) for controlling the work device (1), wherein the first control element is arranged adjacent to the free end (10) of the shaft (8), wherein the handle (6, 7) has a display device (20) with a display element (21) for transmitting operating information to the operator (51), wherein the display device (20) is arranged on the shaft (8) such that a distance (e) between the display device (20) and the fastening end (9) is less than half the shaft length (a).