Ergonomic Housing with Vertical Protrusions for Portable Devices
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Solution Overview
Problem
The existing housings for portable electronic devices are often awkward to grip and hold, leading to discomfort and fatigue during extended use or transportation, necessitating an ergonomic design that supports reliable and comfortable handling.
Innovation Solution
The housing features elevated rectangular borders, radiused or chamfered corners, and vertical protrusions with arched or mounded cross-sections, along with a central recess for finger placement, providing ergonomic features that facilitate secure grip and reduced fatigue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the housing has a simple flat design, then it is easy to manufacture, but it is awkward to grip and hold
Solution Approach 1:
The housing incorporates vertical protrusions with arched cross-sections and central peak regions at specific locations on the rear frame, creating localized ergonomic features that enhance grip comfort without redesigning the entire housing structure. This allows the majority of the housing to remain simple while providing targeted comfort improvements where users contact the device.
Solution Approach 2:
The vertical protrusions feature arched or mounded cross-sections with central peak regions, using curved surfaces instead of flat planes to naturally conform to the contours of human fingers and palms. These curved geometric features provide intuitive grip zones that are more comfortable to hold than flat surfaces, directly addressing the grip comfort issue.
2Ease of operation
If the housing has ergonomic features like protrusions and recesses, then grip comfort is improved, but manufacturing complexity increases
Solution Approach 1:
The housing is divided into modular components: a rear frame with integrated vertical protrusions and a separate front frame with corner members. This segmentation allows each component to be manufactured independently using standard processes, then assembled together. The protrusions are formed as part of the rear frame structure rather than added as separate complex features, reducing overall manufacturing complexity.
Solution Approach 2:
The vertical protrusions are designed with specific geometric parameters (arched cross-section, central peak region) that can be directly formed using common manufacturing techniques like injection molding or extrusion. By selecting parameters that align with standard manufacturing capabilities, the ergonomic features can be produced without requiring specialized or overly complex fabrication processes.
3Strength
If the housing has elevated borders and corner members, then display protection is improved, but device thickness increases
Solution Approach 1:
Instead of providing uniform elevation around the entire display perimeter, the design uses elevated corner members positioned only at the four corners and radiused edges connecting them. This partial approach provides adequate display protection at the most vulnerable points (corners) while minimizing the overall thickness increase compared to a fully elevated border design.
Solution Approach 2:
The corner members feature radiused edges that transition between the elevated corner regions and the lower edge members, creating a gradual three-dimensional form. This dimensional transition allows the protective elevated portions to be concentrated at corners while the connecting radiused portions maintain a lower profile, reducing the overall thickness impact.
Data Source
AI summary
In accordance with one embodiment, a housing is configured to receive a portable electronic device. The housing comprises a front frame that has elevated rectangular border and corner members around a central electronic display. Ones of the corner members have generally planar sections that are joined by a radiused edges or chamfered edges. A rear frame comprises edge members that are joined at substantially orthogonal angles of at the plurality of corner members. A first vertical protrusion extends outward from the rear frame. The first vertical protrusion has an first axis and an arched cross section or mounded cross section with a central peak region.