Patent ID: 7717005
Filing Date: 2010-05-18
Classification: F16H,Y10T

Abstract:
1. A linear transmission apparatus comprising an actuating mechanism, a guide screw driven and rotated by the actuating mechanism, and a slide mechanism covered onto and coupled to the guide screw, the slide mechanism comprising: a fixing base, having a through hole for passing the guide screw; a primary guide rail, covered onto a side of the guide screw and coupled to the fixing base, and having a top panel and two side panels extended from the top panel; a set of left and right secondary guide rails, engaged to another side of the guide screw, and coupled to the fixing base and corresponding to the primary guide rail, and each secondary guide rail having an extended panel protruded separately from a side proximate to the primary guide rail, and the top of each extended panel being not lower than the bottom of each side panel, and the primary guide rail and the secondary guide rails together surrounding the guide screw, and one of the side panels at least overlapping one of the extended panels, and the other of the side panels at least overlapping the other of the extended panels; and a slide element, sheathed onto the exterior of the primary guide rail and each secondary guide rail, and the slide element forming a nut screwed to the guide screw and disposed in each guide rail.