Have you ever wondered how your laptop screen stays open at an angle without snapping back? Or how those old flip phones could open and close without requiring lubricants?
Well, friction hinges are what give them this unique function. Technicians also call them living hinges or constant torque hinges.
The use of friction hinges is widespread thanks to the simple perk it provides for many electronics. It’s why you almost always see them used in laptops and flip-phones, a contraption that’s slowly making a comeback in a smartphone-dominated world. You can learn more about them in this educational read and many other helpful resources.
Whether you need a primer on what friction hinges are or a refresher as a technician, here are the basic things you should know.
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How Do Friction Hinges Work In Computers And Electronic Gadgets?
Friction hinges create a level of resistance between two mechanical components. This resistance allows a device to hold a position in a given range of motion until you move it. In turn, this allows two parts of a device to rotate or pivot on an axis without swinging around.
A friction hinge typically consists of two parts: a stationary part attached to one part of the device and a movable part attached to the other.
The former typically has a series of ridges or protrusions designed to rub against the movable part of the hinge as it rotates. The friction between them is what makes the resistance needed to hold the parts in place at any position.
Computer and electronic gadget industries use friction hinges because they are generally simple, inexpensive, and reliable. In laptops, manufacturers use friction hinges to hold the screen in place while allowing the device to open and close without causing structural damage. This is what gives foldable laptop designs their iconic form.
Some smartphone manufacturers are also bringing back friction hinges for their newer designs. You may have seen smartphone models that let you fold and unfold the device depending on your usage. Other parts of a device that use friction hinges include the back covers of phones. Lids of portable electronic devices, like portable DVD players, have the same thing.
You can even find friction hinges used in wall mounts in your home for your curved or flatscreen televisions. This allows you to swivel the screen as necessary for a better viewing experience. Even though they’re flexible, the hinges are still strong enough to hold the whole thing in place.
In addition to their use in consumer electronics, friction hinges have other applications. You can find them in medical equipment, toys, and industrial machinery. They are preferred for these objects since they don’t require lubrication and can withstand high levels of wear and tear.
How Long Do Friction Hinges Last?
The lifespan of a friction hinge depends on several factors. The main one, of course, is the material and quality of the construction. The amount of wear and tear is also a key factor.
Fortunately, most friction hinges are made of high-quality materials and constructed with attention to detail. So, they tend to last long.
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Manufacturers of friction hinges in computers and consumer electronics typically design them to last for the device’s lifetime. However, they may wear out or become damaged through dropping, throwing, and other things that cause stress and damage to the material. In such cases, it may be necessary to replace the hinge to restore the device to full functionality.
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With use and care in mind, providing a specific lifespan for friction hinges is challenging. Some may last for years with minimal maintenance. Others, however, may wear out more quickly due to heavy use or exposure to harsh environments. It’s a good idea to check your device’s hinges regularly. If you find any problems with them, visit the retailer you got them from. They may have options for repair and replacement.
Advantages Of Friction Hinges In Electronics
- Simplicity – Friction hinges are relatively simple in design and easy to mass-produce, making them a cost-effective choice for device manufacturers.
- Reliability – Friction hinges are generally reliable and don’t require extensive maintenance, such as lubrication. This makes them a good choice for devices used in challenging environments.
- Durability – Friction hinges can withstand high levels of wear and tear. Hence, they’re a good choice for devices used constantly.
- Flexibility – Friction hinges allow for a wide range of movement, which is the main selling point behind their popularity.
- Aesthetics – Friction hinges can be made to be nearly invisible. This is particularly useful for devices that need a sleek and modern appearance.
It’s thanks to these perks that friction hinges are a staple in electronic hardware. Both everyday users and technicians should pay attention to maintenance if they want them to last.
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Takeaways
Overall, friction hinges are a widely used and versatile component in various computer and electronic gadgets. They provide a simple and reliable way to hold two parts together while still allowing them to move according to a user’s preference. Feel free to learn more about these handy contraptions today.
