Adjustable Hinge Assembly for Stable Display Positioning
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Solution Overview
Problem
Conventional hinge assemblies in clamshell electronic devices often fail to provide a stable torsional force, leading to difficulties in opening or closing the device due to either insufficient or excessive force, which can result in the display not being securely fixed at predetermined positions.
Innovation Solution
A hinge assembly with an adjustable torsional force system, comprising a damper rod and fastener arrangement, where the damper rod is slidably disposed on fixed blocks and the fastener is designed to allow deformation, enabling adaptive adjustment of torsional force to securely fix the device's housings at desired angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a general hinge assembly provides fixed output of torsional force, then the display and main body are prevented from generating different torsional forces, but the display cannot be stably fixed in predetermined position due to insufficient torsional force
Solution Approach 1:
The hinge assembly transitions from a fixed torsional force system to a dynamic adjustable system. The damper rod can slide within the fastener along the longitudinal direction, allowing the torsional force output to be dynamically adjusted based on the opening/closing position and user needs, thereby achieving stable fixation at predetermined positions while maintaining adaptability.
Solution Approach 2:
The invention changes the parameter of torsional force from a fixed value to an adjustable range. By allowing the damper rod to slide to different positions within the fastener, the effective length and mechanical advantage of the damper rod change, thereby adjusting the torsional force output to match different operational requirements.
2Force
If a general hinge assembly provides fixed output of torsional force, then consistent torsional force is maintained, but a force from the user to rotate the display cannot be buffered
Solution Approach 1:
The hinge assembly becomes dynamically adjustable, allowing the damper rod position to be modified to buffer user input forces. When users apply force to rotate the display, the damper rod can slide within the fastener to absorb and buffer these forces, making the operation smoother and more controllable while maintaining consistent torsional force characteristics.
Solution Approach 2:
The adjustable damper rod position allows for beforehand cushioning of user forces. By pre-positioning the damper rod at appropriate locations within the fastener, the system can anticipate and buffer user input forces before they cause abrupt movements, thereby improving ease of operation.
3Device complexity
If a general hinge assembly provides fixed output of torsional force, then structural simplicity is maintained, but the user experiences difficulty smoothly opening the display due to excessive torsional force
Solution Approach 1:
The hinge assembly incorporates a dynamically adjustable damper rod that can slide within the fastener. This allows the torsional force to be adjusted to appropriate levels for smooth opening operations. The added adjustability is minimal in terms of structural complexity while significantly improving ease of operation by preventing excessive torsional force.
Solution Approach 2:
The damper rod is segmented from the fixed block structure, allowing it to slide independently within the fastener. This segmentation enables independent adjustment of the damper rod position to optimize torsional force for smooth opening, while the overall hinge assembly structure remains relatively simple and compact.
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 adjustable torsional force system ensures that the device's housings can be stably fixed at predetermined angles, enhancing user convenience by allowing smooth opening and closing operations while preventing damage to the fasteners through controlled deformation.
Implementation Method 1
at least one damper rod... The damper rod is slidably disposed on the first fixed block
Implementation Method 2
the fastener is designed to allow deformation, enabling adaptive adjustment of torsional force
Implementation Method 3
the first connecting rod has a fifth end and a sixth end, wherein the fifth end is slidably and rotatably connected to the second end, and the sixth end is rotatably connected to the fourth end
Data Source
AI summary
An electronic device and a hinge assembly thereof are provided. The hinge assembly includes a first and a second fixed block, a first and a second polyline rod, a damper rod and a fastener. The first fixed block has a first and a second end, the second fixed block has a third and a fourth end, and the first polyline rod has a fifth and a sixth end, wherein the fifth end is connected to the second end, and the sixth end is connected to the fourth end. The second polyline rod has a seventh connected to the fourth end, and an eighth end, connected to the second end and the sixth end. The damper rod is slidably disposed on the first fixed block, the fastener is fixed to the first fixed block, and a distal end of the damper rod is fastened into the fastener.