Patent ID: 8544945

Claim:
A pivotal armrest for seating arranged in rows and having a stationary backrest and a seat pivotable between a generally horizontal use position and a generally vertical standby position, said armrest comprising an arm support and a supporting brace each of which has two ends, a first one of said arm support ends being pivotally connectable to one side of said backrest at a location above the axis of pivot of said seat, a first one of said supporting brace ends being pivotally connectable to the same side of said seat at a location thereon spaced from said seat pivot axis, and the second ends of said arm support and said supporting brace being pivotally connected together, the lengths of said arm support and said supporting brace and the distance between said seat pivot axis and said locations being selected such that with said seat pivoted into said use position said armrest support is substantially horizontal and said supporting brace is inclined forwardly, and with said seat pivoted into said standby position said arm support and said supporting brace lie alongside each other and are generally vertical and said arm rest having a cup holder pivotally connected to the pivotal interconnection of said second ends; and said cup holder being substantially horizontal and remaining substantially horizontal irrespective of the motion of said seat between said use and standby positions.