Monobloc Heel with Notched Gutter for Roller Shutter Tunnel Box
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Solution Overview
Problem
Existing solutions for tunnel boxes on masonry construction elements fail to provide a stable seating mechanism that allows for secure mounting while maintaining the integrity of the connection with the frame and avoiding interference with the assembly of connecting profiles.
Innovation Solution
A one-piece heel with U-shaped section profiles and a connecting plate that allows the heel to sit on masonry elements, featuring indented passages for profile insertion and symmetrical mounting options, ensuring stability and non-interference with the frame assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the heel is designed with a complete bottom wall to provide stable seating on masonry elements, then the seating stability is improved, but the assembly of connecting profiles in the jamb wall is interfered with
Solution Approach 1:
A passage is created by removing a portion of the bottom wall to allow the connecting profile to pass through. This extraction of material creates the necessary opening for profile assembly while preserving the heel's seating function on the masonry elements.
Solution Approach 2:
The bottom wall has different properties in different locations: most of it remains complete to provide stable seating, while a specific local area has a passage to allow profile passage. This local modification achieves both requirements simultaneously.
2Adaptability or versatility
If the heel design includes passages for profile insertion, then the connection with the frame is improved, but the structural integrity of the heel is reduced
Solution Approach 1:
The connecting plate acts as an intermediary element that reinforces the heel structure around the passage area. It compensates for the structural weakening caused by the passage while enabling the profile insertion function.
3Manufacturing precision
If different heel types are used for different mounting directions, then the mounting precision is improved, but the device complexity increases
Solution Approach 1:
The heel is designed with asymmetric features including an asymmetric passage configuration and asymmetric side wall structures. This asymmetry allows the single heel type to be mounted in different directions while maintaining proper alignment and function, eliminating the need for multiple heel types.
Data Source
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AI summary
The present invention relates to a heel (100) intended to be associated with a tunnel box (CT) for receiving a roller shutter mechanism, the tunnel box comprising two jamb walls (B1, B2), the heel (100) comprising two gutters (110a, 110b) joined by means of a connecting plate (120) so that the two gutters (110a, 110b) can overlap the two jambs (B1, B2) at one side of the tunnel box, each gutter being made up of a U-shaped section profile defined by a bottom wall (Pf), bordered on both sides by two side walls (Pl), the profile being adapted to fit the edge of a jamb, the heel (100) being monobloc. According to the invention, the bottom wall (Pf) is notched locally from an edge, so as to allow the passage, through said passage, of an insertion wing (Ai) of a profile (300) in a jamb wall.The heel of the invention, when fixed on both ends of the tunnel box, provides a base on masonry construction elements but does not hinder the mounting of a connecting profile with a frame, in the corresponding jamb wall of the tunnel box.