Patent ID: 8522632
Filing Date: 2013-09-03
Classification: B23Q,F16H,Y10T

Abstract:
1. A linear guide comprising: a base frame having a front end and a back end; two stationary supported parallel guide bars, each guide bar having a front end and a rear end, each guide bar mounted to and supported by the base frame at each of said front ends, each of said rear ends and intermediate the front ends and rear ends, a guide block, the guide block is mounted on the guide bars and longitudinally displaceable relative to the guide bars, a further guide bar with a toothed rack extending parallel with the at least two stationary parallel supported guide bars and positioned intermediate and below the two stationary supported parallel guide bars and below the guide block, the further guide bar having teeth of the toothed rack extending downwardly; the further guide bar with the toothed rack comprising a front end and a rear end, wherein only the front end and rear end of the further guide bar with the toothed rack are respectively connected to and supported by the base frame, and the remainder of the further guide bar with the toothed rack being freely suspended with respect to the base frame between the front end and the rear end; a driving unit comprising a motor and pinion for moving the guide block with respect to the guide bars, the driving unit being attached to the guide block beneath the guide block at a bottom surface of the guide block and positioned between the two stationary supported parallel guide bars, the motor mounted transverse to the two stationary supported parallel guide bars, the pinion meshing with the downwardly extending teeth of the toothed rack.