Patent ID: 7293870
Filing Date: 2007-11-13
Classification: B41J

Abstract:
1. A supporting structure, comprising: a sleeve having a guiding groove with a lug portion; and a connecting rod movably disposed in the sleeve and having a cantilever with a hook portion confined in the guiding groove, wherein the guiding groove has a predetermined profile, and the cantilever is deformed in a first direction when the hook portion passes the lug portion; wherein the cantilever is not deformed with the hook portion confined in the guiding groove when the connecting rod is in a first position, the cantilever is deformed in the first direction with the hook portion pressed on the lug portion when the connecting rod is in a second position, and the cantilever is deformed in a second direction with the hook portion pressed into the sleeve when the connecting rod is in a third position; and wherein the guiding groove is separated into a first slot and a second slot by the lug portion, the hook portion is confined in the first slot when arriving at the first position but in the second slot when arriving at the second position, and the first slot and the second slot are not arranged in the same line.