USB Cord Cover For Children
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This is a cord cover designed to be easy to use that will prevent children from chewing/sucking on USB cord ends.
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The goal of this project was to design an easy to use device that would cover the loose ends of USB cords. Our child has proven adept at finding our charging cables and chewing on the ends. If they are not straight up chewed to bits, the lighting cables for iPhones have a nasty habit of corroding if not cleaned up right away.
After searching around, I did not find anything that looked like it would work that did not contain small pieces (choke hazard). Even if when they were assembled they were safe, if the child was able to open/release them these small parts could pose a choking hazard. To me, that's worse than if they just chewed on the cables.
After a bit of research on choking hazards, I came to rely on this standard for what is a choking hazard. No part of this device is a choking hazard per this test.
https://www.cpsc.gov/Business--Manufacturing/Business-Education/Business-Guidance/Small-Parts-for-Toys-and-Childrens-Products
The second part of my research was around what constituted child resistant or child proof. Nothing is child proof. In order to claim something is child resistant, it requires testing with between 50 and 200 actual children… Not something I have easy access to. The next best rule of thumb was that to prevent children from opening something required two simultaneous dissimilar actions/movements.
If you're interested in what the testing to qualify as child resistant entails, this search should get you started:
https://www.google.com/search?q=16+CFR+%C2%A7+1700.20
This device uses the need to simultaneously press two buttons that actuate in different direction and rotate a shaft simultaneously. While not child resistant, as it's not been through testing, our child has not been able to open it on their own. They know how it's supposed to work and play with it like a puzzle, but they still can't open/close it without handing it to one of the adults.
Update: At almost three years old now, our child can assemble this, but still not open it. I scaled this up and now have it on several loose plugs that are normally unplugged in the kitchen that they would occasionally try to plug in. It's still working well for us, and I plan to use them for our next child.
Let me know if there's any improvements you think I could make!