Display Hinge Linkage With Variable Spring Torque Hold
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Solution Overview
Problem
Conventional hinges fail to provide a flexible and adjustable resistance torque to support display devices at various tilt angles and weights, lacking a mechanism to effectively stop the device at any desired position.
Innovation Solution
A hinge design incorporating a linkage mechanism and a compression spring, where the elastic element's force is adjusted by a sliding piece and an adjustment module, allowing the display device to be stopped at any tilt angle, with varying compensation torque phases to match different weights.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a torsional spring is used in the hinge, then the hinge can provide resistance torque to support the display device, but the resistance torque is fixed and cannot be adjusted for different weights and tilt angles
Solution Approach 1:
The patent replaces the fixed torsional spring with a dynamic compression spring system coupled with a linkage mechanism. The linkage mechanism (comprising first link, second link, and sliding piece) translates rotational motion into linear compression of the spring, allowing the spring force to vary dynamically with the tilt angle. This enables the hinge to adapt to different weights and angles without requiring multiple fixed springs or complex adjustment mechanisms.
Solution Approach 2:
The patent changes the spring configuration from a torsional spring with fixed torque characteristics to a compression spring whose force parameter varies with compression distance. The linkage mechanism ensures that the compression distance changes with the tilt angle, creating a variable resistance torque that adapts to different display device weights and desired tilt positions.
2Force
If the compression spring force is increased to support heavier devices, then the supporting force increases, but the tactile feel during operation becomes harsh
Solution Approach 1:
The patent transforms the spring force application from a direct rotational torque (single dimension) to a linear compression force that is then converted to rotational resistance through the linkage mechanism (adding a spatial dimension). This dimensional transformation allows the spring to provide strong supporting force while the linkage mechanism distributes and modulates the force application, creating a gentler tactile experience during operation.
Solution Approach 2:
The linkage mechanism acts as an intermediary between the compression spring and the display device. It translates the spring's linear compression force into a rotational resistance torque, allowing the spring to provide high supporting force while the linkage mechanism smooths out the force application, resulting in a more comfortable tactile feel during adjustment.
3Measurement precision
If friction is increased to stop the display device at any position, then the stopping precision improves, but the resistance during movement increases
Solution Approach 1:
The patent employs friction between the sliding piece and the guide rail to provide self-locking capability. The compression spring continuously presses the sliding piece against the guide rail, creating friction that automatically locks the hinge at any position without requiring additional locking mechanisms. The system uses its own operational forces (spring compression) to generate the friction needed for precise positioning.
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 provides a large supporting force and wide range, allowing the display device to rotate and stop at any position due to the cooperative action of the elastic element and linkage mechanism, effectively resisting gravity torque with adjustable compensation torque.
Implementation Method 1
The elastic element is disposed in the receiving space and abuts against between the linkage mechanism and the shell element to provide an elastic force
Implementation Method 2
The compression spring adapted in the present invention provides a large supporting force and a wide supporting range
Implementation Method 3
The bearing plate is linked to the linkage mechanism to compress or loosen the elastic element to change the elastic force
Implementation Method 4
Backed by the friction generated among the elements of the hinge, the display device can be stopped at once at any position with any tilt angle
Data Source
AI summary
A hinge includes a bearing plate, a linkage mechanism, a shell element, and an elastic element. The linkage mechanism is linked to the bearing plate. The shell element is disposed on the support, is connected to the linkage mechanism and includes a receiving space. The elastic element is disposed in the receiving space and abuts against between the linkage mechanism and the shell element to provide an elastic force. When an external force is applied, the display device and the bearing plate rotate relative to the support between a first position and a second position. The bearing plate is linked to the linkage mechanism to compress or loosen the elastic element, and then the elastic force is changed. When the external force is removed, the display device and the bearing plate can be stopped at once at any position between the first position and the second position.