Foldable Display Stand with Retractable Arms for Safe Portability
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Solution Overview
Problem
Conventional foldable display stands are unsafe due to swinging arms that can injure users and are less desirable for portability when folded, as the arms are positioned externally and prone to movement.
Innovation Solution
A foldable display stand design featuring a base, leg unit with restraining members, and support arm assemblies that are convertible between storage, projecting, and display states, with the support arms retracting into leg tubes for safety and ease of handling, and a top lid that covers the base for secure storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the support arms are positioned externally on the supporting rod, then the display function is improved, but the safety deteriorates due to swinging arms that can injure users
Solution Approach 1:
The support arms are designed to be retractable into the leg tubes, with the connecting member sliding within the leg tube interior. When folded, the support arm is fully contained within the leg tube, eliminating external swinging arms that could injure users while maintaining the display capability when extended.
Solution Approach 2:
The support arm assembly is divided into separable components: the support arm, connecting member, and restraining member. This segmentation allows the connecting member to slide within the leg tube and be restrained at specific positions, enabling both safe retraction and functional extension.
2Adaptability or versatility
If the support arms are positioned externally on the supporting rod, then the display function is improved, but the portability deteriorates when folded
Solution Approach 1:
The support arm assembly is designed to nest within the leg tube when folded. The connecting member slides into the leg tube interior and is restrained by the restraining member, significantly reducing the overall volume and improving portability while maintaining full display functionality when extended.
3Ease of operation
If the connecting member is movable along the leg tube, then the ease of operation is improved, but the reliability deteriorates due to potential separation during upward movement
Solution Approach 1:
The restraining member is pre-positioned on the leg tube at a specific height. When the connecting member is moved upward during operation, the restraining member automatically engages with a corresponding feature on the connecting member, preventing separation before it can occur and ensuring reliable connection maintenance.
Solution Approach 2:
The restraining member provides a preliminary restraining force that counteracts any upward movement that could cause separation. This anti-action is applied in advance to prevent the harmful effect of disconnection while allowing controlled movement for operation.
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 design enhances user safety by preventing arm movement during folding, improves portability by reducing size, and maintains stability during use, addressing the safety and portability issues of conventional foldable display stands.
Implementation Method 1
The connecting member of each of the support arm assemblies is movable along the respective one of the leg tubes, and is blocked by one of the restraining members that is disposed on the respective one of the leg tubes so as to be prevented from being separated from the respective one of said leg tubes during upward movement
Implementation Method 2
The support arm of each of the support arm assemblies has a connecting section that is pivotally connected to the connecting member of the support arm assembly
Data Source
AI summary
A foldable display stand includes a leg unit and two support arm assemblies. The leg unit includes two leg tubes. Each of the support arm assemblies includes a support arm, and is convertible among a storage state where the support arm is substantially retracted into a respective one of the leg tubes, a projecting state where the support arm substantially projects out of the respective leg tube and where the support arm extends along an extending axis of the respective leg tube, and a display state where the support arm extends in a direction transverse to the direction of the extending axis of the respective leg tube.