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Discovering an Unsung Design Feature in a 2005 Honda Civic
That hill would have an awfully steep grade. I'd guess the latch is more likely to be effective under acceleration so your CDs don't come flying out when you step on it.
I agree, this a good example of well-executed design for context. The door is unlocked and accessible when needed and automatically locked when under heavy acceleration. The user will most likely never know about this feature, but they would definitely know if it wasn't there. Great design is often invisible.
It is indeed a clever design and well executed, but it is not some gravity latch or for steep slopes. It is a safety latch to avoid objects from flying out the compartment during sudden braking or frontal impact. The seatbelt ratchet mechanism works in a similar fashion.
Nope- during deceleration any objects in the compartment would move forward and away from the door, which is the same thing the latch weight will do. David is right- a Civic under hard acceleration can do about 0.5g longitudinally, which is far more than you'd get in that axis on any hill.
What about rear impact? not say that the issue wasn't seen during testing but a notched hinge would probably be much cheaper than adding a weight.