Laptop Hinge Leg Design for Mounting Stability
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Solution Overview
Problem
Laptop computers with separable first and second housings face instability when the first housing is opened, leading to an unstable mounting state due to the raised center of gravity and potential rattling, especially when performing typing or touch operations.
Innovation Solution
A leg protruding rearward from the second housing is designed to widen the supporting region, with a specific shape that allows the leg to protrude downward from the vertical position of the mounted face, ensuring the laptop computer maintains a stable mounting state by distributing the load across two points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the first housing is opened up relative to the second housing for operation, then the display and operating portion are accessible for use, but the center of gravity is raised and the mounting state becomes unstable
Solution Approach 1:
The leg is configured to protrude in a direction substantially perpendicular to the second main face, extending into a third dimension (vertical direction) rather than only in the horizontal plane. This dimensional extension creates a new support point below the mounting face, effectively counterbalancing the raised center of gravity and stabilizing the mounting state while the housing remains open for operation.
2Area of stationary object
If the leg protrudes horizontally from the second side, then the supporting region is extended, but the mounting state remains unstable due to insufficient load distribution
Solution Approach 1:
The leg protrudes rearward and downward such that it extends into the vertical dimension, creating support points at different heights. The rear end of the leg protrudes downward from the vertical position of the mounted face, establishing contact with the mounting face at a lower position. This vertical dimensionality change allows the leg to effectively distribute load across two distinct contact points (the front edge of the second housing and the rear end of the leg), thereby stabilizing the mounting state.
3Stability of the object's composition
If the first housing is made heavy to provide stability, then the mounting state is stabilized, but the device becomes difficult to carry and manipulate
Solution Approach 1:
The supporting function is segmented from the main housing body and implemented as a separate, movable leg structure. This segmentation allows the stability function to be provided by the leg's geometric configuration and positioning rather than by increasing the overall weight of the device. The leg acts as an independent stabilizing element that can be integrated into the housing structure without significantly increasing the device's portability burden.
Data Source
AI summary
Laptop computer according to the present disclosure includes a first housing provided with a display, a second housing provided with an operating portion, and a hinge that connects a first side on a rear of the first housing in a length direction and a second side of the second housing such that the first housing and the second housing are capable of relative rotation. The second housing has a leg capable of protruding rearward of the second side from the second side. A shape of a section in the second side connected to the leg is set such that, when the leg is protruded rearward of the second side, a rear end of the leg protrudes downward from a vertical position of a mounted face which is a main face of the second housing opposite to a main face on which the operating portion is provided.