Nested Link Mechanism for Compact Display Folding
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Solution Overview
Problem
Existing display apparatuses face challenges in reducing packed volume due to large folded heights of link members and excessive elastic force from torsion coil springs, which complicates packing and carrying.
Innovation Solution
The display apparatus features a link member folding mechanism within the same plane, utilizing a sub elastic member and elastic cam units to minimize volume and reduce elastic force when folded, allowing for efficient packing and carrying.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the link members are folded vertically with large folded height, then the display apparatus can be packed, but the packed volume is large
Solution Approach 1:
The first link member is inserted into the second link member to form a nested structure, where the first link member is accommodated within the second link member. This nesting arrangement significantly reduces the folded height and packed volume compared to traditional vertical folding of separate link members.
2Force
If a torsion coil spring is used to bias the link members, then the display apparatus can be supported, but excessive elastic force is generated when folded
Solution Approach 1:
The torsion coil spring is extracted and replaced with a sub elastic member that provides elastic biasing force through a different mechanism. This substitution eliminates the excessive elastic force problem while maintaining the necessary support function.
Solution Approach 2:
The elastic force characteristics are changed by transitioning from a torsion coil spring to a sub elastic member with different mechanical properties. This parameter change reduces the elastic force generated during folding while maintaining adequate biasing for display support.
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
This design effectively minimizes the packed volume and reduces elastic force, enabling stable and compact storage and transport of the display apparatus.
Implementation Method 1
a sub elastic member interposed between the first link member and the sub link member to elastically bias the display main body
Implementation Method 2
at least one elastic cam unit provided to the first link member to controllably bias the display main body within a predetermined range
Data Source
AI summary
A display apparatus which folds a link member in the same plane to minimize the volume thereof is provided. The display apparatus includes a display main body, a base, a first link member relatively movably coupled to the display main body at a first end part thereof, and a second link member including a link accommodating part which accommodates the first link member, coupled with a second end part of the first link member through a link hinge unit at a first side thereof to move with respect to the first link member, and coupled with the base at a second side thereof.