Most conventional hinges require some type of pin like a screw or metal rod be inserted for the hinge to turn. What benefits will I get by using a living hinge over other types of hinges? 2 piece hingeĮliminate assembly and lower cost – Plain and simple this is the biggest advantage of a living hinge. Look in your fridge sauces, condiments and more have living hinges.Candy container caps (for example Tic Tac mints).You will find living hinges on plastic parts like caps and closures. It can take the place of a traditional hinge in most cases and do it with less parts and no assembly. When you need something that connects two sides together and allow rotational movement a living hinge will likely do the trick. The purpose of the hinge on a ketchup cap is to keep the cap connected to the main body but also allowing it to move out of the way for dispensing.
A familiar example would be a ketchup cap. They are very durable and with good design can last for millions of cycles. Since it is very thin it enables the two bodies to move rotationally to angles of 180 degrees and greater. What is the key to getting a quality plastic living hinge? It’s all about the design… Ketchup Cap What is a living hinge?Ī living hinge is a thin section of plastic that connects two plastic bodies together. Due to the unique flow dynamics of plastic injection molding two bodies of plastic can be connected with a resilient hinge can be cycled indefinitely. Living hinge design is method that can accomplish both these tasks handily by replacing conventional hinge design methods with a flexible thin web of plastic. Great product designers are always on the lookout for better ways to reduce cost and improve the user experience.
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