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heridfel37 t1_j6jqsbf wrote

The spring on a modern garage door won't go flying when it breaks, but the door falling is still dangerous

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Sad_Frosting1670 t1_j6kthr3 wrote

The spring breaks because it is cyclically loaded. Every cycle makes a small crack open a little bit more. The final straw that breaks it is going to be when it is wound the most - which is in the down position when the door is closed. So, a falling door is unlikely going to occur.

1

chrisp1j t1_j6ltm4i wrote

Untrue, mine broke when it was being closed, midway up. Loud and a little scary. Probably 25 years old, something that should have been replaced.

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