Eccentric Block Hinge Mechanism for Compact Stand Rotation
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Solution Overview
Problem
Conventional stands for electronic devices are bulky, occupy considerable space, and have limited rotational angles, making them prone to damage and unsuitable for modular use.
Innovation Solution
A hinge structure with a housing, arced portion, and eccentric block mechanism that allows for smooth operation in a small space, enabling stable and adjustable support of electronic devices at various angles through a combination of guiding rails, pins, and elastic torsion members.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a conventional stand with an opened structure is used, then the stand can be folded and received in the electronic device, but it occupies a considerable space and has a limited rotational angle
Solution Approach 1:
The stand is designed with a nested structure where the support surface and connecting components are folded within the housing of the electronic device. The support surface rotates about a hinge mechanism that allows it to be stored compactly within the device boundaries while maintaining full rotational functionality when deployed.
Solution Approach 2:
The hinge mechanism incorporates a multi-axis rotation system that allows the support surface to move not only in one rotational direction but also adjust in elevation and lateral positions, effectively utilizing three-dimensional space for a single degree of freedom rotation to maximize rotational angle without increasing occupied volume.
2Ease of manufacture
If a conventional stand with an opened structure is used, then the stand can be folded and received in the electronic device, but it is easily damaged due to impact
Solution Approach 1:
The hinge mechanism incorporates shock-absorbing elements and flexible connectors that are pre-installed to cushion impact forces. The nested folded structure itself acts as a protective mechanism, as the compact configuration reduces the exposed surface area vulnerable to impact damage during transport and storage.
Solution Approach 2:
The stand utilizes flexible connecting components and elastic elements within the hinge mechanism that can deform to absorb impact forces while maintaining structural integrity. These flexible elements allow the stand to withstand accidental drops or impacts without permanent damage while preserving the foldable design.
3Object-affected harmful factors
If a hinge structure with cover and planar portion is used, then foreign matter entry is prevented, but operation space is constrained
Solution Approach 1:
The cover is designed with differentiated regions: a solid covering portion that seals the housing opening to prevent foreign matter entry, and a localized operation gap region that remains open or features a small aperture to allow manual operation of the hinge mechanism. This local differentiation maintains protection while enabling functionality.
Solution Approach 2:
The hinge mechanism incorporates a transmitting component that extends through the cover or operates within a sealed chamber, allowing the user to manipulate the stand angle from the outside while the internal hinge components remain protected. The cover acts as an intermediary barrier that transmits operational force while blocking foreign matter.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The hinge structure reduces the overall volume, prevents foreign matter entry, and provides stable torque and increased support angles, enhancing modularity and durability while maintaining smooth operation.
Implementation Method 1
an elastic torsion member disposed on the positioning pin
Implementation Method 2
provides stable torque
Data Source
AI summary
A hinge structure for connecting an electronic device and a stand includes a housing mounted to the housing, a cover covering the housing and a lifting member mounted to the stand, wherein a gap is formed between the lifting member and the cover, the lifting member includes an eccentric block movably disposed in the housing, a guiding member is disposed on one end of the eccentric block and includes a arced groove through which a pin movably extending, a positioning pin is positioned in a limiting groove; in another embodiment, the lifting member includes an eccentric block having a arced plate movably disposed in a rear groove and a lateral groove of the housing, whereby the hinge structure is smoothly operated in a small gap.