Wall Ceiling Sail Tensioning Mechanism for Membrane Preloading
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Solution Overview
Problem
Existing wall/ceiling sails face challenges in easily and securely attaching large membranes to their frames, particularly in achieving even preloading across the entire membrane surface.
Innovation Solution
A wall/ceiling sail design featuring a surrounding frame with a piping edge that engages in a piping holder, utilizing a tension piece with a clamping screw and optional spring for adjustable preloading, allowing for secure attachment and tensioning of the membrane.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a membrane is attached to a frame using conventional methods, then the membrane can be secured to the frame, but the attachment process becomes complex and difficult for large-area membranes
Solution Approach 1:
A tensioning piece with a clamping screw acts as an intermediary mechanism between the membrane and the frame. The clamping screw engages with the tensioning piece to provide a simple yet effective attachment method that avoids complex fastening systems while securing large-area membranes to the frame structure.
Solution Approach 2:
The tensioning piece is designed to be movable along a tensioning path within the frame, allowing dynamic adjustment during installation. This mobility enables the membrane to be tensioned evenly across its surface by moving the tensioning piece to different positions, simplifying the attachment process for large membranes.
2Reliability
If the membrane is tensioned to achieve even preloading, then the membrane can be securely fixed, but the tensioning process becomes time-consuming and difficult
Solution Approach 1:
The tensioning piece moves along a predefined tensioning path to distribute tension evenly across the membrane surface. This dynamic movement mechanism allows for uniform preloading to be achieved systematically rather than through time-consuming manual adjustments at multiple points.
Solution Approach 2:
The frame is designed with a predefined tensioning path that guides the tensioning piece through the optimal sequence of movements. This preliminary design of the tensioning trajectory ensures that even preloading is achieved automatically during the installation process, eliminating the need for time-consuming trial-and-adjustment procedures.
3Reliability
If the membrane is securely attached to resist environmental fluctuations, then the attachment becomes rigid and difficult to adjust
Solution Approach 1:
The attachment system maintains stability through the clamping screw mechanism while preserving adjustability via the movable tensioning piece. The clamping screw provides secure fixation that resists environmental forces, while the ability to move the tensioning piece along the tensioning path allows for adjustments to be made if needed, balancing reliability with operational flexibility.
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
Enables easy assembly and secure fixation of the membrane, maintaining consistent tension despite environmental fluctuations in temperature and humidity.
Implementation Method 1
the clamping device, in particular in the form of the clamping screw, can be provided with a spring, in particular in the form of a spiral compression spring or flat spring or another suitable type of spring, which can surround the clamping screw for a compact design. This additional tension spring makes it possible to keep the clamping force at least approximately constant, especially when temperature and humidity fluctuations need to be compensated for.
Data Source
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AI summary
The present invention relates to wall/ceiling sails (1) with a surrounding frame (2); and with a membrane (3) attached to the frame (2), which has a keder edge (4) by means of which the membrane (3) can be fixed to the frame (2) in a keder receptacle (5), wherein the keder receptacle (5) is arranged on a tensioning piece (6), characterized in that the tensioning piece (6) is movably guided in a receiving space (15) of the frame (2) along a tensioning path (W), and that the keder edge (4) is designed as a flat keder, the dimensions and shape of which are adapted to the dimensions and shape of the keder receptacle (5).