A foldable weightlifting bench includes two supporting members each have a post and a base member is pivotally connected between the two posts. Each of the posts has a connecting member extending laterally therefrom and the base member has a tube formed to one end thereof so that the tube can be selectably...http://www.google.es/patents/US5921897?utm_source=gb-gplus-sharePatente US5921897 - Foldable weightlifting bench
