Rolling Shutter Damping Bodies for Noise Reduction
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Solution Overview
Problem
Existing rolling shutters often lack noise-reducing features, and retrofitting with noise-reducing solutions requires complete disassembly or new manufacturing, which is cumbersome and expensive.
Innovation Solution
Detachable damping bodies made from synthetic foam, elastomer, or textile materials are mounted on rolling shutter curtain bars, providing adhesive and contact surfaces to reduce noise and abrasion by damping the energy of stacked profile bars during winding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If detachable damping bodies are mounted on rolling shutter curtain bars, then noise emission and abrasion are reduced, but device complexity increases
Solution Approach 1:
The damping solution is segmented into individual detachable bodies that can be mounted on specific rolling shutter curtain bars where noise and abrasion occur. This allows targeted application rather than requiring complete disassembly or new manufacturing of entire shutter components, resolving the contradiction by adding only necessary damping elements to specific locations.
Solution Approach 2:
The damping bodies act as intermediary elements between the rolling shutter curtain bars, providing a cushioning layer that reduces direct contact and friction. This intermediary layer absorbs impact energy and reduces noise emission while preventing abrasion between stacked profile bars during winding operations.
2Duration of action of stationary object
If damping bodies are mounted on rolling shutter curtain bars, then service life is increased, but ease of manufacture decreases
Solution Approach 1:
The damping bodies are pre-formed from synthetic foam material with adhesive surfaces prepared in advance. This preliminary preparation allows for easy attachment to existing rolling shutter curtain bars without requiring complex manufacturing processes or complete disassembly of the shutter system, thus maintaining ease of manufacture while extending service life.
Solution Approach 2:
The damping bodies utilize the viscoelastic properties of synthetic foam material that changes its damping characteristics based on compression and temperature. This parameter-based approach provides effective noise and abrasion reduction without requiring complex structural modifications, preserving ease of manufacture while extending service life through material property optimization.
3Object-affected harmful factors
If damping bodies are used to reduce noise and abrasion, then operational noise is reduced, but wind stability may be impaired
Solution Approach 1:
The damping bodies are applied locally to specific areas of the rolling shutter curtain bars where noise and abrasion occur during winding operations. By concentrating the damping material only at critical contact points rather than covering entire surfaces, the solution reduces operational noise while maintaining the overall structural integrity and wind stability of the shutter system.
Solution Approach 2:
The damping bodies are constructed from flexible synthetic foam material that can deform under wind load while maintaining attachment to the curtain bars. This flexibility allows the damping elements to accommodate aerodynamic forces during operation without compromising the structural stability or wind resistance of the overall rolling shutter system.
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
The solution effectively reduces operational noise and prevents abrasion, allowing for increased rotational speed and service life, with easy installation and removal, and can be used as a retrofit for existing shutters without impairing wind stability.
Implementation Method 1
a rolling shutter (10) with a winding shaft (12) having a rolling shutter curtain (14) formed from metallic prefabricated rolling shutter curtain bars (28), the rolling shutter curtain (14) being configured to get wound up on the winding shaft (12) into a winding bale (18), and with a set of damping bodies (34), made from a synthetic foam material, an elastomer material, and/or a textile material, such that the damping bodies (34) are detachably mountable to the rolling shutter curtain bars (28)
Implementation Method 2
an elastomer foam body made from a foamed elastomer material; and/or an elastomer body made from an elastomer material
Data Source
AI summary
A rolling shutter comprises a winding shaft having a rolling shutter curtain formed from metallic premade rolling shutter curtain bars. The rolling shutter curtain is configured to be wound up on the winding shaft into a winding bale, and comprises a set of damping bodies. The damping bodies are formed from a synthetic foam material, an elastomer material, and/or a textile material. The damping bodies can be detachably mounted to the rolling shutter curtain bars.