Just One Hit

Hi, I've got this far, but even with the help icon, I can't work out what I'm supposed to do next.
The rune is trapped and I have to free a gear to get the rune. I can't get the gear out because I have to use the key to hold the gate open, but when I do that, another gate shuts and I can't move the rune. The hint icon placed the gear in a way that blocks the second gate, but when I try to move it from there, either I can't move the key fast enough, or the gear won't move.

I hope this makes sense and that someone can help me - I'm getting desperate!!

I'm in the same boat. Have you figured it out yet?
bryates@pacbell.net

What MAP are you in? I just got to 4th map. If it's before that I'll be glad to help. I'll be back here before 7-14-12 to see if you reply