Display Support Arm Locking Mechanism for Safe Panel Rotation
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Solution Overview
Problem
Display modules can collide with a floor surface during rotation due to insufficient spacing, leading to potential damage.
Innovation Solution
A display apparatus with a support arm mechanism that includes a locking link and elastic member, allowing rotation only when the display module is spaced apart from the floor by a predetermined distance, and restricting rotation when close to the floor to prevent collision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the display module is rotated without being sufficiently spaced apart from the floor surface, then the rotation function is achieved, but the display module collides with the floor surface causing damage
Solution Approach 1:
The support arm is raised to a predetermined height before rotation is permitted. The locking link must be in the unlocked position, which only occurs when the support arm is at the predetermined height or higher, preventing rotation that would cause collision with the floor surface
Solution Approach 2:
The locking link acts as an intermediary mechanism between the support arm position and the rotation function. It translates the vertical position of the support arm into a rotational constraint, allowing rotation only when the display module is sufficiently spaced from the floor
2Ease of operation
If the locking link is always unlocked to allow free rotation, then rotation is always possible, but the display module may collide with the floor surface
Solution Approach 1:
The elastic member applies a preliminary locking force to prevent rotation when the support arm is at a low position. This anti-action (locking) is applied in advance before any rotational movement can occur, eliminating the harmful collision effect before it can happen
3Reliability
If the locking link is always locked to prevent rotation, then collision with the floor is prevented, but the rotation function becomes unavailable
Solution Approach 1:
The locking mechanism transitions from a static always-locked state to a dynamic state that automatically adjusts based on the support arm position. The locking link moves between locked and unlocked positions according to the vertical position of the support arm, enabling rotation only when safe
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
Prevents display module collisions with the floor by ensuring adequate spacing during rotation, maintaining the display module's integrity.
Implementation Method 1
The support arm may further include an elastic member configured to bias the locking link toward the support bracket. One end of the elastic member may be connected to the fixing link, and another end of the elastic member may be connected to the locking link.
Data Source
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AI summary
A display apparatus is provided. The display apparatus includes: a display panel; a support bracket coupled to a rear surface of the display panel and defining a locking groove; a support arm coupled to the support bracket and supporting the display panel, wherein the support arm is configured to rotate between a first and second orientations; and a support stand supporting the support arm and configured to allow the support arm to move along a vertical direction between first and second positions. The support arm includes: a rotating link configured to rotate as the support arm moves; and a locking link configured to move from a locked position in which the locking link is inserted into the locking groove to restrict rotation of the display panel, to an unlocked position in which the locking link is withdrawn from the locking groove to allow rotation of the display panel.