Foldable Display Pivot Structure for Three-Axis Angle Adjustment
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Solution Overview
Problem
Foldable electronic devices face limitations in achieving multi-axis rotation for the display and host, restricting their functionality and user adjustability, as existing pivot apparatuses only allow for single-axis rotation, which hinders the device's ability to be compactly stored and efficiently used.
Innovation Solution
A pivot apparatus comprising a rotary base, connecting plate, pivot component, connecting rods, hooks, and elastic components that enable the display to rotate about three different axes, allowing for adjustable elevation and display angles, ensuring secure locking mechanisms to prevent damage during use and storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a simple hinge connection is used between display and host, then the device structure is simple and easy to manufacture, but the display can only rotate about a single axis and cannot achieve multiple angle adjustments
Solution Approach 1:
The pivot apparatus is divided into multiple independent components: a rotary base with first and second parts, a connecting plate, a pivot component, and multiple connecting rods. Each component handles a specific aspect of the rotation mechanism, allowing the display to rotate about multiple axes while keeping individual components relatively simple and easy to manufacture.
Solution Approach 2:
The pivot apparatus incorporates multiple degrees of freedom through the rotary base and connecting rods, enabling dynamic multi-axis rotation. The first connecting rod allows rotation about a first axis, the second connecting rod enables rotation about a second axis, and the pivot component provides rotation about a third axis, creating a dynamically adjustable positioning system.
2Ease of operation
If the display is allowed to rotate freely without restrictions, then the user can adjust various angles for comfort, but the display may collide with the host during opening and closing causing damage
Solution Approach 1:
The hook and locking hole mechanism provides preliminary restriction by preventing the display from rotating beyond safe limits. The hook engages with the locking hole to block excessive rotation before collision can occur, while still allowing free rotation within the safe angular range for user adjustment.
Solution Approach 2:
The first connecting rod acts as an intermediary between the display and host, mediating the rotation movement. It transmits rotational motion while the hook and locking hole provide intermittent restraint, allowing smooth angle adjustment during normal operation but preventing dangerous movements that could cause collision.
3Reliability
If multiple connecting rods and locking mechanisms are added to enable three-axis rotation and prevent collision, then the device reliability and adjustability improve, but the device complexity increases
Solution Approach 1:
Multiple functions are merged into a compact pivot apparatus structure. The rotary base integrates the first and second parts with rotary shafts, the connecting plate serves as both a structural support and a mounting surface for the pivot component, and the connecting rods simultaneously enable rotation and provide collision prevention through the hook mechanism.
Solution Approach 2:
The pivot apparatus components serve multiple functions: the rotary base enables rotation about multiple axes, the connecting rods both transmit motion and provide structural support, and the hook mechanism both restricts rotation and prevents collision. This multi-functionality reduces the need for separate components, managing overall complexity.
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
Enables the foldable electronic device to rotate the display relative to the host about three axes, enhancing user adjustability, preventing damage during closure, and optimizing storage by allowing precise control over the device's configuration.
Implementation Method 1
a first elastic component disposed between the connecting plate and the first connecting rod to drive the first connecting rod to be restored
Data Source
AI summary
A pivot apparatus adapted to connect a host and a display includes a rotary base having a first part and a second part, a connecting plate, a pivot component, a first connecting rod and a hook. The first part is embedded at the host. The second part has a rotary shaft embedded at a first edge of the connecting plate. The pivot component is pivotally connected between a rear surface of the display and a second edge of the connecting plate. The first connecting rod is slidably disposed at the connecting plate and has at least a locking hole. The hook is disposed at the rear surface and passes through the connecting plate to be slidably disposed in the locking hole. The hook is used to interfere with the first connecting rod to restrict the rotation of the display by the pivot component relative to the connecting plate.