Screen Tube Click Profile Mounting Slot Design
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Solution Overview
Problem
Existing screen devices face challenges in securely fastening screens to screen tubes without causing creasing when rolled up and unrolled, as traditional fastening methods require disassembly of the screen tube and create sudden transitions that lead to bumps.
Innovation Solution
A screen device with a click profile on the screen edge and a mounting slot on the screen tube, featuring a mounting element with a recess for the screen seam and an elastically displaceable click leg, which engages in an undercut to prevent loose fastening and minimize creasing by fully accommodating the click profile in the mounting slot, creating a smooth transition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional fastening method with thickening on screen edge is used, then the screen can be fastened to the screen tube, but the screen tube needs to be demounted and space next to the screen tube must be free
Solution Approach 1:
The fastening system is divided into separate components: a click profile attached to the screen edge and a mounting slot in the screen tube. This allows the screen to be fastened without demounting the entire screen tube, simplifying the assembly process while maintaining secure fastening.
Solution Approach 2:
The click profile with mounting slot is integrated into the screen tube structure, with the mounting slot formed as a recess in the screen tube's peripheral surface. This nested design allows the click profile to engage with the mounting slot without requiring additional space outside the screen tube circumference.
2Reliability
If the screen is wrapped around the click profile to fasten, then the screen can be secured to the screen tube, but crease-free fastening becomes more difficult
Solution Approach 1:
Instead of wrapping the screen around the click profile, the click profile is attached to the screen edge and then engaged with the mounting slot in the screen tube. This inverted approach maintains screen flatness while achieving secure fastening through the engagement of the click profile's mounting slot with the screen tube's mounting slot.
3Object-affected harmful factors
If thickenings are confined outside the circumference of the screen tube, then creasing is avoided, but sudden transitions still occur causing bumps
Solution Approach 1:
The click profile is designed with a curved outer surface that specifically matches the curvature of the screen tube's peripheral surface. This localized curvature design ensures that the transition from screen tube to click profile is smooth, eliminating sudden transitions and bumps while preventing screen creasing during rolling.
4Shape
If the click profile is fully accommodated in the mounting slot, then a smooth transition is created, but the mounting slot depth increases reducing space for other components
Solution Approach 1:
The mounting slot is designed to extend radially inward from the peripheral surface of the screen tube, utilizing the radial dimension to accommodate the click profile. This dimensional approach allows full accommodation of the click profile for smooth transitions while minimizing the impact on the internal volume of the screen tube, as the slot depth is optimized to balance smoothness requirements with space constraints.
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 allows for easy and secure fastening of the screen to the screen tube without creasing, reducing bumps and enabling a more compact design with increased space in the screen tube for other components like tube plugs and motors.
Implementation Method 1
comprises an elastically displaceable click leg, which when the click profile is clicked in place, engages in a second undercut of the said undercuts
Data Source
Figure 1
Figure 2
Figure 3~5
AI summary
Screen device (1), comprising a screen (2), which on a screen edge (15) is provided with a mounting element (6), wherein a screen seam (7) is formed, comprising a click profile (3) which is provided with a mounting slot (8) for the at least partial reception of the mounting element (6) herein, and comprising a screen tube (4), for the rolling up and unrolling of the screen (2) hereon, which screen tube in its peripheral surface (11) is provided with a mounting slot (5) into which the click profile (3) of the screen (2) is clickable, so that the click profile (3), after having been clicked in place, is accommodated fully in the mounting slot (8) in the screen tube (4), wherein the click profile (3) comprises a curved outer surface (9) in order to at least partially complete the peripheral surface (11) of the screen tube (4), and wherein a recess (10) is provided in this outer surface (9), for the reception of the screen seam (7) herein.