Friction hinges hold their position with limited play and no springback, making them ideal for securing equipment like laptop screens. They come in different designs and weight ratings, and replacement parts are available. Regular maintenance is recommended to ensure smooth operation and prevent rusting.
A friction hinge holds its position anywhere within its range of motion, allowing it to be placed and left in place with minimal wiggle room. A classic example can be seen on laptop cases. The case stays closed until the user opens it and will stay where the user leaves it. Many computer applications require friction hinges to position monitors and other devices. They can also be used in other settings.
These devices are also called constant torque hinges. Different designs are available, using different technologies to hold the hinge position, with a variety of fasteners to attach to equipment such as doors, computer cases and rack mounts. A similar design has what is known as a stop stop, where the zipper will stop at a certain point and start moving again when pushed. This is not the same as a friction hinge and can be used in a variety of settings.
Each zipper is thoroughly tested during the manufacturing process. Projects need to move smoothly and seamlessly so operators don’t have to yank or pull the zipper to open it. They must also be able to carry large loads. Each friction hinge should have a weight rating, which indicates how it can be used. Typically the rating on a zipper should exceed the application, to ensure it will continue to perform under adverse conditions.
In addition to having limited play, friction hinges also don’t spring back. Minimal wobble can be important for applications where the hinge needs to be securely fastened in place. Springback prevention also makes it difficult to slap or slap something to close, which reduces the risk of damage. A laptop screen, for example, needs to be pushed gently into the closed position. This makes it less likely that a hasty or angry operator will damage the device, because the hinge limits the speed of closing and opening.
Replacement parts for friction hinges are available at hardware and electronics stores. Hinges can be embedded within an object’s casing, which may require some work to disassemble it for the purpose of servicing and maintaining friction hinges. Prior to installation, we recommend checking the hinges for signs of defects and oiling them once in place so they will operate smoothly. The oil can also prevent metal components from rusting, which can shorten the life of a zipper and cause squeaking.
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