Screw-on Profile Section for Roller Shutter End Bar Sealing
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Solution Overview
Problem
Existing screw-on profile parts for roller shutter end bars often fail to ensure effective sealing and soundproofing when the roller shutter is in a raised state, as the locking legs are not adequately designed to cover the gaps on both sides of the roller shutter end bar, leading to incomplete closure and potential contamination.
Innovation Solution
A screw-on profile part with U-shaped shoe parts featuring outwardly protruding locking legs on both U-legs and strategically placed connecting openings allows for complete accommodation of the roller shutter end bar, enabling effective sealing and soundproofing without requiring the roller shutter to be dismantled, with the option to form the profile part from metal or plastic materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If locking legs are designed on the underside of the roller shutter end bar, then the structure is simplified, but the sealing effectiveness is reduced when the roller shutter is not fully raised
Solution Approach 1:
The locking legs are designed with asymmetric positioning relative to the U-legs, with one locking leg extending from each U-leg at different locations. This asymmetric arrangement allows the locking legs to effectively cover gaps on both sides of the roller shutter end bar regardless of the shutter's raised position, resolving the contradiction between structural simplicity and sealing effectiveness.
2Ease of manufacture
If the roller shutter is dismantled to install the profile part, then the profile part can be properly inserted into the roller shutter end bar, but the installation time and complexity increase
Solution Approach 1:
Instead of inserting the profile part into the roller shutter end bar from below (which would require disassembly), the profile part is designed to be screwed onto the end bar from the outside. The connecting openings are positioned to allow screws to pass through the end bar and secure the profile part, enabling installation without dismantling the roller shutter.
3Ease of operation
If connecting openings are positioned at the longitudinal ends of the screw-on profile part, then the connection is simplified, but the roller shutter must be in a specific position for proper installation
Solution Approach 1:
The connecting openings are segmented and distributed at different positions along the longitudinal extent of the profile part, rather than concentrated at the ends. This segmentation allows the roller shutter to be installed at various positions along the profile part's length, providing flexibility in installation while maintaining ease of connection.
4Object-affected harmful factors
If the roller shutter end bar is completely covered, then sealing and soundproofing are improved, but the profile part design becomes more complex
Solution Approach 1:
The profile part is designed as a unified U-shaped shoe part that integrates multiple functions: the U-legs with locking legs provide sealing coverage, the connecting openings enable secure attachment, and the overall structure achieves both contamination prevention and soundproofing. This merging of functions into a single integrated component achieves complete coverage without excessive complexity.
Data Source
AI summary
The part (4) has a U-shaped shoe part provided with a U-intermediate space for accommodating a roller shutter-end rod (3) in the intermediate space. Connection openings i.e. screwing apertures, are formed at a distance to the profile part. Closure legs (9) outwardly project perpendicular to an accommodating direction, and are formed related to cross sectional view at both U-legs that run from a U-bar. The closure legs are placed at a free end of the U-legs, and the profile part is formed of metal by extrusion.