It’s very annoyng when a car door doesnt close properly, and I think it could be avoided with a better locking mechanism. Why is it that most doors can close at once but car doors are more complicated?
In: Engineering
Car doors have to withstand constant vibration, wind, and rain. That is why they have thick, soft rubber seals all the way around. It takes some force to push it tight so that the seal holds. Other doors can have the same kind of seals, but are usually so heavy that they will fall into the latch once you set them in motion.
And then, as others have already said, there is a secondary mechanism that can keep the door from opening all the way if the lock fails while the vehicle is in motion. That’s the “half-closed” state.
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