US Patent 7249739 Display stand

A display stand comprises a connecting seat and supporting plate. A vertical guiding slot is disposed on said connecting seat. A rack and a control section are installed respectively at the two flank sides of the vertical guiding slot, in which the control section has a locking bar accepted in the slider, and one end thereof is engaged with the rack. After a panel is combined with connecting seat, said locking bar is driven to move along a single direction to be separated from the engagement of said rack by pulling the pull rod of the control section to push a skewed slot, and the slider is caused to slide up and down along the sliding slot by pulling said pull rod so as to change a relative angle between the connecting seat and the supporting plate. Finally, the pull rod is released to complete a positioning.