Patent ID: 7249563

Claim:
A mechanism mountable on a table including a tabletop and at least three legs, comprising: a bracket secured on a bottom of the tabletop; and a stand pivotally mounted to the bracket and served as a main portion of each leg, wherein: the bracket includes a first side plate, a second side plate opposite to the first side plate of the bracket, a back for connecting the first side plate and the second plate of the bracket, a first through hole defined in and laterally extending through the first side plate and the second side plate near a lower end of the bracket, a bore defined in the first side plate of the bracket, a slot longitudinally defined in the second side plate of the bracket and linearly corresponding to the bore, a shaft sequentially extending through the slot and the bore, a first locking member mounted to a distal end of the shaft after the shaft extending through the bore to prevent the shaft from detaching from the bracket, a pivot extending through the bracket via the first through hole to pivotally mount the stand to the bracket after a top portion of the stand being received in the bracket, the pivot having an enlarged second end, a second locking member mounted to a first end of the pivot to prevent the pivot from detaching from the bracket, a spring having both ends secured to the shaft and the pivot respectively, and a valley defined in a lower end of the back of the bracket for selectively partially receiving the stand when being folded; and the stand includes a second through hole laterally defined therein for allowing the pivot extending therethrough, a first side plate, a second side plate opposite to the first side plate, a groove defined in the second side plate of the stand with, the shaft engaged in the groove when the stand is stretched to support the tabletop, a cutout defined in the first side plate of the stand to allow the shaft extend through the stand, and a guiding side formed on an inward top of the second side plate of the stand for guiding the shaft to move into the groove when stretching the stand.