Self-Locking Friction Cylinder for Recyclable Display
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Solution Overview
Problem
Existing self-extending advertising pillars require cumbersome tensioning elements or supporting members to maintain configuration, and their elastic materials complicate recycling and reduce storage time due to material degradation.
Innovation Solution
A device comprising two rigid panels joined along edges to form a hollow cylinder with a continuously adjustable locking member using a friction band coupling, allowing easy extension and flattening without manual intervention, and made from recyclable materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If tensioning elements or supporting members are used to maintain the extended configuration, then the device can maintain its extended shape, but the operation becomes cumbersome requiring active fitting or hooking by the user
Solution Approach 1:
The locking member automatically locks the device in its extended configuration without requiring active intervention from the user. The friction band coupling between the first and second parts of the locking member creates self-locking that maintains the extended shape passively once extended, eliminating the need for users to actively fit tensioning elements or hook supporting members.
2Extent of automation
If elastic materials are used for tensioning elements, then the device can automatically extend and maintain configuration, but recycling becomes more difficult and storage time is reduced due to material degradation
Solution Approach 1:
The invention changes the material parameter from elastic materials to rigid materials for the panels and locking member. This eliminates the automatic extension capability provided by elasticity but enables recyclability and extended storage time. The rigid structure is extended and locked using the friction band coupling mechanism instead of elastic tensioning.
Solution Approach 2:
The invention replaces the elastic mechanical system (tensioning elements that automatically extend) with a friction-based mechanical system (friction band coupling in the locking member). This substitution eliminates the need for elastic materials while maintaining the ability to extend and hold the extended configuration through controlled friction locking.
3Stability of the object's composition
If a locking mechanism is added to maintain configuration, then the extended shape is maintained, but the device complexity increases
Solution Approach 1:
The locking member is divided into two separate parts: a first part and a second part. These parts are connected through the friction band coupling mechanism, allowing independent positioning and locking. This segmentation enables the locking function to be achieved through a relatively simple friction-based interaction rather than a complex integrated mechanism.
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 device is easy to extend and flatten, self-supporting in its extended configuration, and facilitates recycling by using materials like paper fibers, ensuring reliable friction locking and adjustable configuration without the need for additional tensioning elements.
Implementation Method 1
the locking member being self-locking by a friction band coupling formed between contact surfaces of the first part and the second part of the locking member
Data Source
Figure 1~2
Figure 3
Figure 4~6b
AI summary
An information presenting device. The device is arranged to be capable of assuming a first configuration, in which the device is flattened for transport or storage, and of assuming a second configuration, in which the device is extended and hence self-supporting. The device comprises at least two panels 4, made of a rigid material, which are joined together along the respective edges of at least two of the panels such that the device, having assumed the second configuration, forms a hollow cylinder, and at least one locking member 6, arranged between said panels 4, for continuously adjustable locking of the device in said first or second configuration, the locking member 6 comprising a first part 8a and a second part 8b, the first part 8a being slidably connected to the second part 8b and the locking member 6 being self-locking by a friction band coupling formed between contact surfaces of the first part 8a and the second part 8b of the locking member 6.