Roller Shutter Box Expansion Plate with Sealing Bead
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Solution Overview
Problem
Existing roller shutter box solutions fail to provide a practical, watertight closing mechanism that can adapt to various carpentry dimensions, leading to increased stock management and inefficiencies in manufacturing due to fixed dimensions and lack of adjustable solutions.
Innovation Solution
A flexible rectangular plate with fold lines and a sealing bead is used to create a dihedral shape, allowing for adjustable closure of the notch created in the roller shutter box, which can be secured to the box using holes and slots, and optionally features a breakable border with studs for alignment with new frame grooves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If fixed dimension parts are used for roller shutter box ends, then manufacturing is simplified, but adaptability to different carpentry dimensions is reduced
Solution Approach 1:
The end piece incorporates a folding element that allows it to change its configuration between a folded state for storage/transport and an unfolded state for installation. This dynamic transformation enables a single part design to serve multiple dimensional requirements, resolving the contradiction between manufacturing simplicity and adaptability to different carpentry dimensions.
Solution Approach 2:
The end piece is divided into multiple foldable sections that can be arranged in different configurations. This segmentation allows the same basic part to be adapted to various widths and depths by unfolding different sections, maintaining manufacturing simplicity while achieving versatility.
2Manufacturing precision
If multiple part references are maintained for different dimensions, then precision fitting is achieved, but stock management complexity increases
Solution Approach 1:
A single end piece design with foldable elements serves multiple functions by adapting to different dimensional requirements. Instead of maintaining separate part references for each dimension, one universal part can be configured to fit various openings, reducing stock management complexity while maintaining precision fitting through proper configuration.
3Ease of manufacture
If sheet metal parts are used for end pieces, then manufacturing with simple tools is enabled, but thermal conduction and airtightness are compromised
Solution Approach 1:
The end piece combines sheet metal structure with polyurethane foam insulation. The metal provides structural integrity and manufacturability with simple tools, while the foam layer addresses thermal conduction and airtightness requirements. This composite approach resolves the contradiction between ease of manufacture and protection against harmful thermal and air leakage factors.
Data Source
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AI summary
The device (D) has a plastic plate (1), and a boot whose internal face (Ca) and outer side (Cb) are connected together by two side portions (Cc), an upper plate (Cd), and a lower plate (Ce).The plate is arranged with a set of fold lines that is bent at right angles so as to form a dihedron with a flap (B1) having width that is equal to width of a recess to be closed. A bead is arranged in the plate, where the bead is in contact with two side plate portions and boot portions. : An independent claim is also included for a case of a rolling shutter. USE : Device for expanding a rolling shutter that is intended for a boot of a new building or joineries in a rehabilitation assembly. ADVANTAGE : The bead is arranged in the plate, where the bead is in contact with two side plate portions and boot portions, thus allowing the device to be implemented in a simple and economic manner for maximum combinations of joineries. DESCRIPTION OF DRAWINGS : The drawing shows a perspective view of a device for expanding a rolling shutter. B1 : Flap Ca : Internal face Cb : Outer side Cc : Side portions Cd : Upper plate Ce : Lower plate D : Device for expanding a rolling shutter 1 : Plastic plate POLYMERS : The bead is made of polyurethane.