Adjustable Banner Affixing Device for Wind-Resistant Pole Mounting
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Solution Overview
Problem
Existing publicity affixing devices are either costly, complicated, or lack adaptability to banners of varying dimensions, and often fail to securely attach to pre-existing supports, especially under windy conditions.
Innovation Solution
A device comprising two structural units that can be independently coupled and uncoupled from a pole, with adjustable coupling means and elastic traction elements to maintain banner tension and stability across different banner sizes, allowing for easy attachment and detachment without requiring complex mechanisms or specific pole configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a device with fixed beams and springs is used (EP2226781), then wind resistance is optimal and manufacturing is simple, but adaptability to banners of varying dimensions is poor
Solution Approach 1:
The device is divided into two independent structural units (15, 20) that can be separately coupled to the pole at different positions. Each unit can be independently adjusted along the pole, allowing the distance between them to match various banner heights while maintaining the simple beam-and-spring design of each individual unit.
Solution Approach 2:
The structural units are designed to be movable along the pole with locking capability, transforming the fixed structure into a dynamic, adjustable one. This allows the device to adapt to different banner dimensions while keeping each unit's internal structure simple and easy to manufacture.
2Adaptability or versatility
If a complex mechanism with cables, pulleys, and springs is used (EP3291211), then adaptability to varying banner dimensions is achieved, but device complexity and cost increase significantly
Solution Approach 1:
Instead of one complex mechanism, the system uses two simple, identical structural units that are independent of each other. Each unit contains a simple beam with spring and cable mechanism, eliminating the need for complex interactions between multiple mechanisms while achieving adaptability through independent positioning.
Solution Approach 2:
The two structural units serve multiple functions: they provide wind resistance through their beams and springs, enable height adjustment through independent positioning on the pole, and secure the banner through their coupling means. This universal design eliminates the need for separate mechanisms for each function.
3Ease of operation
If structural units are independently coupleable and uncoupleable from the pole, then ease of banner interchange is improved, but reliability under windy conditions may worsen
Solution Approach 1:
The coupling means incorporate a locking mechanism that transitions the structural units from a movable state (for easy installation and banner interchange) to a fixed, locked state (for reliable wind resistance). This dynamic coupling system resolves the contradiction between ease of operation and reliability.
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 a reliable, easy-to-use, and cost-effective method for affixing banners of varying dimensions to pre-existing supports, maintaining optimal visibility and resistance to wind without risking damage or accidental detachment.
Implementation Method 1
at least one of the structural units comprises traction means for the banner in said vertical direction... They comprise a device capable of elastically opposing the mutual distancing of the units when they are connected to the banner
Implementation Method 2
the beams are tilting with respect to the upright under the action of the wind, and they are brought back into the starting position by leaf springs, which hinder push on the beams, hindering the tilting movement thereof
Data Source
Figure 1~2
Figure 3~5
Figure 6~7
AI summary
The present invention relates to a publicity device for affixing a banner to a pre-existing road sign (10) fixed to the ground, developing in a vertical direction and thus extraneous to the device, comprising at least one first and at least one second structural unit (15, 20), coupleable to a locking fixed directly to the pole (10), and uncoupleable therefrom, independently of each other, where at least one is coupleable to a locking fixed to the pole in one point (2a, 2b), varying according to the dimension of the banner (26), each structural unit being provided with means for coupling (25a, 25b) to the banner (5), which are active both in said coupled condition, wherein the banner is in traction, and in said uncoupled condition of the structural units (15, 20) where traction of the banner therebetween is absent.