Dinette Chair wobbling

[Chainsaw]

We have a 3760 EL BigHorn. The dinette chairs have been wobbling back and forth for a few years, it is getting worse. My carpentry skills are slim and none, slim left town.

The front legs are solid the back legs wiggle with the joints I do not know what you call those joints. Can they be separated and glued? Or would a couple of brad nails do it?
Thanks
Don

 

[NYSUPstater]

Try some wood glue and clamps.

 

[hoefler]

There is a bolt/screw on the under side, tighten it.