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This section provides an overview for extrusion double corner braces as well as their applications and principles. Also, please take a look at the list of 7 extrusion double corner brace manufacturers and their company rankings. Here are the top-ranked extrusion double corner brace companies as of April, 2025: 1.Pastall, 2.Little Bird Electronics Pty Ltd., 3.Adafruit.
Table of Contents
An extrusion double corner brace is an earthquake-resistant reinforcement device in which a viscoelastic material of polymeric material is sandwiched between steel plates.
The joints between columns and beams are called "joints," and they are fan-shaped, divided into four circles. When attached to beam joints or columns, the device absorbs loads on wooden buildings caused by strong winds or earthquakes and suppresses deformation.
Compared to conventional construction methods such as load-bearing walls and bonding hardware, it has superior earthquake resistance effects. Lightweight and compact, it can be installed in space-saving locations such as behind ceilings, and is easy to install. No maintenance is required and can be reinforced in combination with conventional construction methods.
Regardless of whether new construction or renovation, extrusion double corner braces are used in a wide range of applications, from private residences to temples and shrines, as long as conventional wooden frame construction methods are used.
Since they can immediately suppress deformation and swaying of buildings in the event of strong winds and earthquakes, their installation significantly improves earthquake resistance performance. For a normal house, the standard number of damper units installed is one per 3.3 square meters, and installation costs are low.
Different types can be used depending on the type of housing. The 15 cm type is used for ordinary wooden houses, the 20 cm type for new houses, and the 30 cm type for shrine and temple buildings.
Vibration suppression dampers can be installed in places where buildings are severely deformed during earthquakes and strong winds. Since building deformation occurs when columns and beams expand, contract, or bend, installing gatekeeper dampers at the ends of these areas can be effective. Vibration-control dampers installed at the ends of the building are called extrusion double corner braces, and can actually be installed in such a way as to connect the sections of the columns and beams that are close to the ends.
The construction time for gatekeeper dampers is short, and they can be installed in one day in a typical house. Once installed, they require no daily maintenance, and tests have shown that they can last for more than 50 years.
The reinforcement plan can also be studied in an easy way, assuming a wall volume of 25 cm per 15 cm type. We also have analytical and design methods in place to evaluate the effectiveness of seismic reinforcement quantitatively, allowing us to study the amount of reinforcement to meet your needs.
Extrusion double corner braces are viscoelastic dampers made of polymeric materials. Viscoelastic materials such as styrene, silicone, and acrylic are used as polymer materials.
Each unit weighs less than 2 kg, making it lightweight and compact. They are so easy to install that they can be installed in space-saving locations such as under ceilings, attics, and floors, and can be easily installed using special wood screws.
The design has a high degree of freedom, and the traditional Japanese color black is often used to match Japanese-style architecture, with a matte finish. It blends in with the color change of wood over time and the old coloring of pillars and beams, and can be installed in places where it is out of sight without being noticed.
In most wooden houses, the pillars only support the weight of the building, and the walls, called bearing walls, which resist earthquakes. Because of the difficulty of joining posts, beams, and other timbers, this cannot be accomplished in wood construction without special construction methods, but an extrusion double corner brace can be installed to absorb energy.
Unlike wooden houses, joints are difficult in steel-frame and reinforced concrete construction. Although there are extrusion double corner braces for steel construction, the joints can be freely rotated to install the gatekeeper damper, and it is necessary to change the part that can originally bear the force so that it cannot. Therefore, it is not very reasonable.
The structure of an extrusion double corner brace consists of a viscoelastic body sandwiched between steel plates. Control is required in each manufacturing process of the viscoelastic body, steel plate, and finished product. In order to ensure the performance to be achieved, it is important to establish a system that can provide stable products by defining control items in each manufacturing process.
An extrusion double corner brace can be attached to the partitions of columns and beams to give a certain strength to a building and absorb the energy of shaking in an earthquake. Thus, it helps to reduce deformation and sway.
*Including some distributors, etc.
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Sanwa Tekki Corporation, founded in 1907 and headquartered in Tokyo, Japan, is a manufacturer specializing in metal fittings and devices for various applications. Its product range includes railroad wires (catenary), high-voltage power lines, and power plant piping systems. Key products include catenary equipment, high-voltage power line fittings, power plant piping support systems for managing thermal expansion and seismic events, dampers for thermal power generation, and equipment for Shinkansen (bullet trains). The company holds ASME certification and serves the railway and electric power industries. Its products play crucial roles in supporting infrastructure and transportation systems.
Proto-PIC, established in 2006 and based in Kirkcaldy, Scotland, is a purveyor and manufacturer of electronic components. The company's product range includes Adafruit items, Arduino components, audio equipment, batteries as well as breakout boards and accessories. These products are used by electronics enthusiasts, makers, educators, and professionals for various applications including prototyping, electronic design, and educational purposes. The products serve the maker community, educational institutions, electronics professionals, and hobbyists. The company also offers services such as design consultancy, programming, assembly, and product sourcing.
Adafruit Industries, established in 2005, is an American manufacturer based in New York, specializing in electronics and do-it-yourself (DIY) electronics kits. The company offers a diverse array of products, including breakout and development boards, circuit playgrounds, light-emitting diodes (LEDs), robotics, computer numerical control (CNC) components, and various electronics project accessories. Adafruit also supports open-source hardware and software, hosting all of its code and hardware on GitHub, a website service for managing code and files. Adafruit also provides a range of tutorials, guides, and project ideas aimed at inspiring and educating electronics enthusiasts, makers, and hobbyists in creating interactive electronic projects.
Pastall, established in 2005 and based in Shenzhen, China, is an open-source electronic prototyping platform provider. The company's product range includes Raspberry Pi accessories, Arduino-compatible products, RC and hobbies equipment, Smart Robots, and various accessories. These products are utilized for interactive electronic object creation, 3D printing, robotics, and STEAM kits. The company serves hobbyists, makers, students, academics, universities, and commercial companies. Its services include service inversion, prompt customer response, pre-and post-sale technical support, technological partnerships, and promotional and technical sales.
RP Electronic Components Ltd, established in 1965 and based in Burnaby, BC, Canada, is a distributor and supplier of electronic products. The company's product range includes AC/DC Adapters, Cooling Fans, Test Equipment, Arduino and Raspberry Pi components, and 3D Filaments. These items are commonly used in electronics maintenance, educational projects, hardware assembly, and manufacturing. They serve the electronics, hardware, manufacturing, and educational industries. Additionally, the company offers services such as immediate product delivery, consultations for bulk purchases, safe online ordering, and order tracking.
DIY Road Cases Store, established in 2016 and located in Los Angeles, California, is a distributor that provides a wide range of products and resources for building custom road cases. The company offers a range of products, including pre-laminated plywood, plastic laminate sheets, and composite panels. It also provides DIY case kits, which include compatible case parts for three different thicknesses. Its kits are designed to simplify the building process for first-time builders. It serves various industries such as entertainment and music, event production, trade shows, and exhibitions.
Ranking as of April 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Pastall |
40.0%
|
| 2 | Little Bird Electronics Pty Ltd. |
40.0%
|
| 3 | Adafruit |
20.0%
|
Derivation Method
The ranking is calculated based on the click share within the extrusion double corner brace page as of April 2025. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
Japan
|
1 | 20.0% |
|
United Kingdom
|
1 | 20.0% |
|
China
|
1 | 20.0% |
|
Australia
|
1 | 20.0% |
|
Canada
|
1 | 20.0% |
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