Yeah, I don't think I have those terms clear yet!
Every brand has a different system but they don't utilize d-rings; however, instead, the tether itself wraps around a part of the seat in front, or the seat it's on, depending on what kind of seat you're installing on. It threads through itself like a d-ring strap does. I don't know what exactly you mean by "seatbelt like buckle" but I'm thinking you're referring to the mechanism that connects it back to the seat, which may be a buckle on some seats but on many is LATCH-type connectors (either push-on connectors or hooks.) So... it's basically the same kind of thing, you're wrapping around the seat and the difference is instead of the tether coming and connecting to the part that wraps, the tether has the connector, and connects to a designated spot on the seat instead. Not very different really in practice.But in the case of those seats that only have one they also work with the same seatbelt like buckle? Or they are like US seats like the D-ring?
The D-ring does nothing to reduce rebound. It is just a way to attach the rear-facing tether.I read somewhere here that the D-ring is to reduce the rebound but that in an accident after preventing the rebound it can break just like a locking clip, it's the same with the sweden seats?
I am talking about the material of the metal part, I don't remember what was the thread about but I read that they are both the same material and I also read that the locking clip is more likely to break in a crash, so I imagine the D-ring will break too. Please remember that I am trying my best to be understand here, my first languish is spanish and sometimes is difficult to translate what I am thinking.ketchupqueen said:I don't think a d-ring is remotely the same as a locking clip. A locking clip is a pre-crash positioner. A d-ring, or rf tethers on swedish seats, are meant to be a structural part of installation.
Now, I suppose with high enough crash forces the thing it's attached to could break, but that's true of either method of tethering; it's also why you have to be careful selecting anchor points and why I would not rf tether in some vehicles.
Ok, good enough explanation for me, so the US car seats are as safe as the Sweden car seats in the matter of rear facing tethers and anti rebound, the only real benefit of a Sweden car seat is his higher rear facing limit?ketchupqueen said:Why a locking clip is possibly going to break (more likely-come off and/or deform) is a function of its position and shape. It's very unlikely that a d-ring would break due to its shape, construction, and use. I could see it deforming in some circumstances; the webbing is likely to stretch in a crash, and if the part it's attached to isn't strong and stable, that could break. The metal itself breaking is pretty unlikely-webbing is going to stretch first, in the tether and d-ring.
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