Patent ID: 7240706
Filing Date: 2007-07-10
Classification: B23D,Y10T

Abstract:
1. A worktable comprising: a base having a top wall; at least one first rail fixedly mounted on the top wall of said base, said at least one first rail each having a guide groove, a first stop and a second stop; at least one guide rod respectively received in the guide groove of each of said at least one first rail and alternatively movable in a first direction and a second direction reversed to the first direction, said at least one guide rod each having a first end and a second end; a first end strip fixedly fastened to the first end of each of said at least one guide rod for stopping said at least one guide rod from movement in said first direction when said first end strip touched the first stop of each of said at least one first rail; a second end strip fixedly fastened to the second end of each of said at least one guide rod for stopping said at least one guide rod from movement in said second direction when said second end strip touched the second stop of each of said at least one first rail; a sliding plate slidably supported on said at least one guide rod, said sliding plate having a bottom wall; and at least one second rail fixedly mounted on the bottom wall of said sliding plate, said at least one second rail having a guide groove, which receives one of said at least one guide rod, a first push portion, which enables said at least one guide rod to be moved in said first direction when touching said second end strip, and a second push portion, which enables said at least one guide rod to be moved in said second direction when touching said first end strip; wherein each of said at least one first rail is comprised of a first locating block and a second locating block, said first locating block and said second locating block each having a groove, the groove of said first locating block and the groove of said second locating block being axially aligned in a line to form the guide groove of the respective first rail, said first locating block having one side forming the first stop of the respective first rail, said second locating block having one side forming the second stop of the respective first rail; wherein each of said at least one second rail is comprised of a first sliding block and a second sliding block, said first sliding block having a groove formed therein, said second sliding block having a groove formed therein, the groove of said first sliding block forming with the groove of said second sliding block the guide groove of the respective second rail, said first sliding block having one side forming the first push portion of the respective second rail, said second sliding block having one side forming the second push portion of the respective second rail; wherein each of said at least one guide rod is received in the guide groove of one of said at least one first rail and the guide groove of one of said at least one second rail.