Rotational adjuster of armrest

摘要: A rotation adjuster of an armrest is connected on a bottom supporting extension, rotatable fixer holding tray, and U-shaped plate having circular groove, slidable seat, support post, two engagement structures, multiple arcuate notches. The tray includes body spaced recesses. columns, protrusion, receiving orifices configured to accommodate springs, balls the pushing elements respectively, connection orifice. first rib, threaded orifice, locking pegs. seat frame, covering sheet, slot, second slots. Each structure notches flexible projection received in trench. screw inserted through orifice fixer.