Spring-Loaded Furring Strip Fastener for Seismic Stability
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Solution Overview
Problem
Conventional methods for fixing heat insulating materials to concrete walls are cumbersome and prone to loosening over time, especially during earthquakes, due to the need for additional fixing plates and insufficient anchoring.
Innovation Solution
A furring strip fastening member with a spring-loaded mechanism that includes a furring strip receiving plate, a bolt hole portion, and a rear face plate, which provides a simple structure for securing the furring strip to the building skeleton, ensuring long-term stability by pressing against both the furring strip and the heat insulating material through the spring reaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a heat insulating material fixing plate is used to fix the heat insulating material to the concrete wall, then the heat insulating material can be fixed, but the structure becomes complex and the fixing plate may loosen over time or during earthquakes
Solution Approach 1:
The patent combines the heat insulating material fixing function and the furring strip fixing function into a single integrated fastening member. The U-shaped body simultaneously engages with both the heat insulating material (via the pressing member and fixing member) and the furring strip (via the receiving plate), eliminating the need for separate fixing plates and reducing overall structural complexity while improving reliability.
Solution Approach 2:
The fastening member is designed as a multi-functional component that performs multiple functions: it fixes the heat insulating material to the wall, secures the furring strip in position, provides spring-loaded pressing force, and incorporates a positioning mechanism. This universal design replaces multiple specialized components with a single versatile device.
2Duration of action of stationary object
If a conventional fixing method with multiple components is used, then the heat insulating material can be attached, but the fixing may become insufficient over time due to loosening
Solution Approach 1:
The patent incorporates a spring element within the U-shaped body that provides continuous dynamic pressing force against the heat insulating material. This spring-loaded mechanism compensates for settling, thermal expansion, and vibration over time, maintaining consistent fixing pressure and preventing loosening, thereby ensuring long-term reliability and duration of the fixing action.
Solution Approach 2:
The spring portion is pre-loaded to exert a continuous counteracting force that prevents loosening before it can occur. This preliminary anti-action counterbalances any forces that might cause the fixing to loosen over time or during seismic events, maintaining stable attachment throughout the service life.
3Ease of operation
If a simple fixing structure is used, then the installation is easier, but the heat insulating material cannot be securely fixed over long periods
Solution Approach 1:
The fastening member is segmented into distinct functional zones: the U-shaped body for engagement, the receiving plate for furring strip attachment, the spring portion for pressing force, and the fixing member for wall anchoring. This segmentation allows each component to perform its specific function efficiently while maintaining overall simplicity and ease of installation, yet ensuring long-term fixing duration through the coordinated action of all segments.
4Reliability
If additional fixing plates are used to secure the heat insulating material, then the attachment is more secure, but the overall structure becomes more complex and troublesome
Solution Approach 1:
The patent merges the heat insulating material fixing function and the furring strip fixing function into a single integrated fastening member. The U-shaped body simultaneously engages with both the heat insulating material (via the pressing member and fixing member) and the furring strip (via the receiving plate), eliminating the need for separate fixing plates and reducing overall structural complexity while improving reliability.
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 secures heat insulating materials to concrete walls for extended periods without loosening, even under seismic conditions, ensuring reliable and uniform attachment of external wall materials.
Implementation Method 1
The spring portion connects the furring strip receiving plate and the rear face plate... the furring strip receiving plate can presses against the furring strip and the rear faceplate can press against the heat insulating material, over long periods of time, on account of the reaction of the spring portion
Data Source
AI summary
A furring strip fastening member is formed by a furring strip receiving plate, a bolt hole portion, a spring portion, and a rear face plate. The furring strip receiving plate and the rear face plate are shaped as flat plates that face each other. The bolt hole portion is provided at a central portion of the furring strip receiving plate. The spring portion connects the furring strip receiving plate and the rear face plate. The rear face plate has in a central portion thereof a through-hole. In a construction structure for buildings, a bolt is mounted to an anchor that is driven into a skeleton wall of a building that is formed by a concrete wall and a heat insulating material disposed outside the latter. This bolt traverses a through-hole in the rear face plate, and the bolt is screwed into a bolt hole portion. The furring strip is connected to the furring strip fastening member, and an external wall material is fastened to the furring strip. With the furring strip fastening member, the furring strip receiving plate presses against the furring strip while the rear face plate presses against the heat insulating material, on account of the reaction of the spring portion.