Patent ID: 7320270

Claim:
A table saw comprising: a machine base having a side panel and an arched slot formed in said side panel; a table provided at a top side of said machine base, said table having a front side, a rear side, and an opening cut through top and bottom walls thereof; two supporting devices respectively fixedly fastened to the bottom wall of said table near said front side and said rear side of said table, said supporting devices each having a smoothly arched guide slot; a suspension girder coupled between said supporting devices, said suspension girder comprising two sliding blocks respectively disposed at two ends thereof and respectively coupled to the smoothly arched guide slots of said supporting devices; a lifter pivoted to said suspension girder and movable to and fro relative to said suspension girder; a saw unit fixedly fastened to said lifter, said saw unit comprising a saw blade insertable through the opening of said table; and an adjustment unit having a hand wheel disposed outside the side panel of said machine base, and an adjustment rod inserted through the arched slot of said machine base and coupled between said hand wheel and said lifter for moving said lifter relative to said suspension girder upon rotation of said hand wheel; wherein said suspension girder comprises a horizontally extending flat girder base, two vertical side plates respectively downwardly extending from two distal ends of said horizontally extending flat girder base for supporting said sliding blocks respectively, and two wings fixedly fastened to said horizontally extending flat girder base, said two wings each having a circular hole; said lifter has at least one through hole; a pin is inserted through the circular holes of said wings and the at least one through hole of said lifter to pivotally secure said lifter to said suspension girder.