Elastomeric Drywall Fasteners for Acoustic Isolation
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Solution Overview
Problem
Conventional methods for achieving sound insulation in rooms, such as using resilient channels, are complex, labor-intensive, and prone to installation errors, making them costly and inefficient.
Innovation Solution
The use of a fastener system comprising a screw with a helical thread and an elastomeric sleeve made of material with a Shore A hardness of 10 to 30, which isolates the drywall from the wall studs, thereby reducing sound transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If resilient channels are used to achieve sound insulation, then sound transmission loss is improved, but device complexity and installation difficulty increase
Solution Approach 1:
The patent combines the fastening function and acoustic isolation function into a single integrated fastener assembly. The elastomeric sleeve is pre-mounted on the fastener shaft, merging what would otherwise be separate components (fastener and acoustic isolation element) into one unit that performs both structural attachment and sound dampening simultaneously.
Solution Approach 2:
The elastomeric sleeve acts as an intermediary element between the fastener shaft and the wall panel. This intermediate component provides acoustic isolation by dampening vibration transmission while allowing the fastener to securely attach the wall panel to the framing member. The sleeve mediates between the rigid fastener and the wall panel, reducing sound transmission without complicating the overall system.
2Object-affected harmful factors
If resilient channels are used for sound insulation, then acoustic performance is improved, but installation time and labor cost increase
Solution Approach 1:
The elastomeric sleeve is pre-mounted on the fastener shaft during manufacturing, before installation. This preliminary action eliminates the need for installers to separately handle and position acoustic isolation elements during wall panel installation. The fastener arrives ready-to-install with the acoustic dampening component already in place, reducing installation time and labor requirements.
3Strength
If conventional fasteners are used to secure wall panels, then structural attachment is achieved, but sound transmission increases
Solution Approach 1:
The elastomeric sleeve provides localized acoustic dampening at the specific location where the fastener contacts the wall panel. Rather than requiring entire resilient channels spanning multiple studs, the acoustic isolation property is concentrated at each fastener penetration point. This local quality approach effectively reduces sound transmission through the attachment points without compromising overall structural integrity.
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 proposed fastener system effectively reduces sound transmission through walls, improving the sound insulation of rooms without the need for complex installations, thus offering a more affordable and efficient solution.
Implementation Method 1
The sleeve is made of an elastomeric material having a shore durometer hardness in the range of 10 to 30
Implementation Method 2
The proposed fastener system effectively reduces sound transmission through walls
Data Source
AI summary
A fastener for securing drywall to a framing member includes an elastomeric sleeve that reduces the transmission of sound through the drywall to the framing member and vice versa.