Fastening Clip for Shading Profiles Near Ceiling
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Solution Overview
Problem
Existing fastening clips for support profiles in shading systems, such as roller blind cassettes, cannot be installed close to the ceiling due to design limitations that result in gaps and require one-sided assembly, making installation cumbersome and potentially requiring multiple workers for heavier profiles.
Innovation Solution
The fastening clip features a first retaining tab with a securing element and an insertion support on its side facing away from the contact surface, allowing the support profile to be clipped on both sides, enabling installation near the ceiling and facilitating assembly by distributing the weight of the profile during installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the support profile is inserted into the first retaining lug facing the ceiling, then the support profile can be fastened to the wall, but a visible gap appears between the support profile and the ceiling due to the required oblique insertion
Solution Approach 1:
The patent inverts the conventional insertion sequence by enabling insertion through the second retaining lug (facing away from ceiling) first, rather than through the first retaining lug (facing ceiling). This inversion allows the support profile to be inserted vertically without oblique movement, eliminating the gap while maintaining secure fastening through subsequent clipping into the first retaining lug
2Ease of operation
If the support profile is inserted at an angle into the first retaining bracket, then the support profile can be clipped into the second retaining clip, but a region of the support profile pivots above the height level of the first retaining bracket creating a visible gap
Solution Approach 1:
The patent applies preliminary action by enabling the support profile to be partially inserted into the second retaining lug first, establishing a stable vertical position before the final clipping operation into the first retaining lug. This preliminary insertion eliminates the need for oblique insertion and prevents the support profile from pivoting above the mounting level
3Ease of operation
If only one-sided assembly is used with the first retaining tab facing the ceiling, then the support profile can be assembled, but the fitter must bear the entire weight of the support profile during insertion and pivoting
Solution Approach 1:
The patent applies the anti-weight principle by configuring the second retaining lug (with gripping tab) to face away from the ceiling, allowing the fitter to insert and secure the support profile in a position where the profile's weight is supported by the mounting structure rather than being borne entirely by the fitter during manipulation. This reduces physical strain on the installer
4Ease of operation
If the gripping lug is arranged on the wall side to remain accessible, then the support profile can be detached, but the first retaining tabs are difficult to hit because they are covered by the support profile
Solution Approach 1:
The patent uses the second retaining lug with the gripping tab as an intermediary access point. Instead of requiring direct access to the first retaining tabs (which are obscured by the support profile), the fitter can engage the accessible gripping tab on the wall side to initiate detachment, which then enables access to or release from the first retaining tabs through the same gripping mechanism
Data Source
Figure 1~2
AI summary
The clip has a base (11) with ends turned away from each other. Retaining plates (14, 15) are assigned for detecting a carrying profile. The plates are assigned to a pair of contact surfaces (12, 13). A reinforcing seam (17) connects the contact surfaces. The retaining plate (14) exhibits a retaining element (21) for additional fixing of the carrying profile. An introduction support (19) for the carrying profile is arranged at the retaining plate (14) that is turned away from the contact surface (12). An independent claim is also included for a shading system with a carrying profile.