| 摘要 |
A foldable support system includes a sheet metal flange depending from a table and a sheet metal leg. A pivot pin extends through a slot in the flange and an aperture in the leg so that the leg may rotate and slide relative to the flange. The flange includes a bent tab which extends toward and beyond the leg and the leg includes an arcuate cut out channel having a mouth at a side edge of the leg and a cut out receptacle at its inner end. The bent tab is received in the receptacle to lock the leg in an unfolded position when the pivot pin is at the top of the slot, while the bent tab is within the channel to permit the leg to be rotated to a folded position, when the pivot pin is at the bottom of the channel.
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