Leap the Dips, Altoona PA — no lap bars and no belts. Just a grab-bar you can use — for whatever you want to use it for.
Actually having seen experienced riders on some of the old coasters jolted to the point of calling for paramedics, I could see such an injury on an old-style (pre-50s) coaster or one of the derby-race style coaster-like rides. Like others, I have heard the stories but the documentation isn’t really there. But it does look like it would make a great t-shirt — “She lost it on our woodie - so can you”
(undercover member of ACE and the Coaster Zombies)
According to this Chicago Tribune article plenty of cell phones and cameras are reported lost on roller coasters. But no mention of finding any lost hymens.
That’s at least usually (I hope) on purpose. What the questioner was asking about was accidental. I would think a “Kangaroo” or “Tumble-bug/Turtle” type ride would be more likely – at least today. But again, how to document? Panty checks before and after riding? Litigation is about the best evidence we can hope for. Parks are sued for all kinds of injuries (and “injuries”) but a quick run through what I have access to doesn’t show any litigation started over a hymen.
But since you mentioned it — dark rides and funhouses were more often the place for sex. In its early day, several employees had a couple “love nests” set up inside the one in Erie PA; enough so that it got the nickname “Love Shak” as opposed to its official name of “Wacky Shak”. Despite what the one TV (CSI) show used as a plot, actual sex on a rollercoaster would most often mean stopping it at the top of the lift hill or finding a damn contortionist daredevil.