Elastic Telescopic Module With Nested Constant-Force Springs
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional elevating devices for displays are bulky due to large constant-force springs, which restrict the range of movement and lead to a short service life, as they are prone to deformation and require significant assembly space.
Innovation Solution
An elastic telescopic module using two constant-force springs that are partially covered and assembled in a modular design, with curved sections and press-fit pieces to prevent deformation and reduce space requirements, allowing for thinner and more flexible movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a single constant-force spring is used to support the elevating device, then the device can provide sufficient support force, but the device becomes bulky and the service life is shortened due to deformation
Solution Approach 1:
The patent divides the single constant-force spring into multiple constant-force springs (at least two). Each spring independently provides support force, reducing the load and deformation on each individual spring. This segmentation extends the service life by preventing any single spring from becoming overloaded and deformed, while collectively maintaining sufficient total support force.
2Device complexity
If conventional constant-force springs are stretched out and positioned by a single spring, then the structure can be simplified, but the assembly requires larger space which limits the range of movement
Solution Approach 1:
The patent employs a nested arrangement where multiple constant-force springs are positioned within each other or in close proximity, allowing them to share the same spatial envelope. This nesting strategy reduces the overall space required for the spring assembly, thereby increasing the available range of movement for the elevating device while maintaining structural simplicity through the compact configuration.
3Stability of the object's composition
If the constant-force spring is pressed against the lateral plate surface during stretching, then the spring can be fixed in position, but the friction increases the risk of the spring being broken or dislocated
Solution Approach 1:
The patent introduces guide slots as intermediary structures that guide the constant-force springs during their stretching and positioning process. These guide slots provide a controlled path that reduces direct friction between the springs and lateral plate surfaces, thereby lowering the risk of spring breakage or dislocation while still ensuring stable positioning through the guiding mechanism.
4Force
If multiple constant-force springs are used to provide sufficient stretching force, then the support force is improved, but the assembly requires larger space for each spring
Solution Approach 1:
The patent utilizes a nested configuration where multiple constant-force springs are arranged within each other or in tightly packed proximity. This nesting approach allows multiple springs to occupy a reduced spatial volume compared to a conventional side-by-side arrangement, thereby providing sufficient total stretching force while minimizing the assembly space required for each individual spring.
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 solution provides sufficient support for up and down movement, prolongs the service life, and increases the range of movement while reducing the required assembly space, enabling a thinner and more versatile design for displays.
Implementation Method 1
the resilient force is generated by at least one constant-force spring
Data Source
AI summary
An elevating device comprises a base, a support on the base, an elastic telescopic module on the support, and an adapter connected with the elastic telescopic module. The elastic telescopic module comprises a first frame body with a first accommodating space therein for positioning a first constant-force spring, and a second frame body with a second accommodating space therein for positioning a second constant-force spring. The second frame body has an top end located beneath the first frame body's bottom end, the first constant-force spring has one end passing out of the first accommodating space and fixed onto the bottom end of the second frame body, while the second constant-force spring has one end passing out of the second accommodating space and fixed onto the top end of the first frame body, so that the first and second frame body are moved in a reverse direction.