Hinge Device for Zero-Frame Laptop with Invisible U-Shaped Structure
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Solution Overview
Problem
Existing hinge devices for notebook-type personal computers with zero-frame displays face issues of visibility and finger catch when open, and the lower end of the display being covered by the main body, due to complex configurations.
Innovation Solution
A hinge device with a U-shaped portion integrally formed with the keyboard, featuring a recessed portion to prevent contact between the display and keyboard ends, and a hinge portion that supports the display's back surface, allowing rotation without visibility from the front obliquely-upward direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the hinge device is inserted in the main body part to make it invisible, then the visibility problem is solved, but the configuration becomes complex
Solution Approach 1:
The hinge device is merged with the display part by integral formation. The hinge device includes a support portion that supports the back surface of the display part and a connection portion that connects to the main body part, forming an integrated structure that eliminates the need for separate hinge components while maintaining invisibility from the front obliquely-upward direction
Solution Approach 2:
The hinge device is designed to be invisible from the front obliquely-upward direction by positioning the support portion on the back surface of the display part. This dimensional arrangement ensures that the hinge structure is hidden from the user's viewing angle while still providing the necessary rotational function
2Shape
If the display part is positioned on the far side of the main body part, then the hinge can be hidden, but the lower end of the display is covered by the main body
Solution Approach 1:
The connection portion of the hinge device is designed with a specific shape that includes a recessed portion. This local structural feature prevents the lower end of the display part from being covered by the main body part while maintaining the overall invisibility of the hinge device from the front obliquely-upward direction
3Object-affected harmful factors
If the hinge device has a complex configuration to prevent finger catch, then safety is improved, but the device complexity increases
Solution Approach 1:
The support portion and connection portion are integrated into a single hinge device structure. This merging eliminates the need for additional safety components while the specific geometric shape of the connection portion naturally prevents finger catch during rotation
Solution Approach 2:
The potential harmful factor of finger catch is converted into a design constraint that shapes the connection portion. The recessed portion and overall geometry are specifically designed to guide fingers away from pinch points, turning the safety requirement into a beneficial structural feature
Data Source
AI summary
A hinge device with a simple configuration and an electronic device are provided. The hinge device, is invisible between a first housing and a second housing from a front obliquely-upward direction, and is capable of preventing a lower end of the first housing from being covered by the second housing when the first housing is in an open state. A hinge device is provided between a display part and a keyboard part, and couples the display part to the keyboard part in an openable and closable manner. A U-shaped portion, which has a U-shaped cross section and one end portion formed integrally with the keyboard part, is included on a rear side of the keyboard part. A hinge portion is provided to the other end portion of the U-shaped portion to open and close the display part with respect to the keyboard part. The hinge portion supports a back surface of the display part, and is capable of rotating the display part. A recessed portion is formed in the one end portion of the U-shaped portion. The recessed portion prevents a lower end of the display part and the one end portion of the U-shaped portion from being brought into contact with each other when the display part is rotated.