Motorized Acoustical Banner with Adjustable Spacing and Quick-Change Fabric
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Solution Overview
Problem
Existing motorized acoustic banner systems face issues with misalignment, fixed spacing, and difficulty in fabric maintenance, making them unsuitable for variable acoustic needs in performance spaces like college recital halls or school cafetoriums.
Innovation Solution
A motorized acoustical banner with adjustable spacing between fabric layers and the wall, a removable tubular motor, and a quick-change drum roller configuration, allowing for various fabric types and easy maintenance, along with a novel horizontal seam stitching for improved tracking accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If a motorized acoustic banner system uses a fixed drum roller configuration, then the structure is simple, but the fabric cannot be easily changed and maintenance is difficult
Solution Approach 1:
The drum roller assembly is divided into separable components: the drum roller body and the tubular motor are independent replaceable units. The fabric is segmented into panels that can be individually accessed and replaced. This segmentation allows the fabric to be changed without removing the entire drum assembly, improving maintenance ease while keeping individual components relatively simple.
Solution Approach 2:
The tubular motor is extracted as a separate removable component from the drum roller assembly. This extraction allows the motor to be removed and replaced independently, and also allows the fabric to be accessed and changed without removing the motor, thereby improving ease of repair while adding only minimal complexity to the overall structure.
2Adaptability or versatility
If the banner uses fixed spacing between fabric layers and wall, then the installation is simple, but it cannot accommodate variable acoustic requirements
Solution Approach 1:
The banner system transitions from fixed spacing to dynamic, adjustable spacing. The fabric layers and the wall-mounted banner can be positioned at variable distances from the wall, allowing the acoustic properties to be changed dynamically. This dynamic adjustment capability enables the same system to accommodate different acoustic requirements for different performance spaces or different uses of the same space.
3Productivity
If the banner fabric is permanently attached to the drum, then the structure is stable, but changing fabrics is time-consuming and difficult
Solution Approach 1:
The attachment system is segmented into removable connections rather than permanent bonds. The fabric panels are connected to the drum roller through a system that allows quick detachment and reattachment. This segmentation enables rapid fabric changes while maintaining stable attachment during operation, as the connection points are designed for both secure holding and easy release.
Data Source
AI summary
A motorized acoustical banner that functions as a variable acoustic absorber is disclosed. The motorized acoustical banner includes a multi-panel fabric banner that allows for adjustable spacing between the layers of fabric as well as between the banner and the wall to which it is mounted. The motorized acoustical banner further includes a drum roller configuration that allows for easily and quickly changing the banner fabric without having to disassemble the entire device. The motorized acoustical banner also includes a tubular motor that can be removed from the device without removing the entire drum.