Window regulator for a frameless door assembly

A window regulator used in a door assembly for raising and lowering a window glass between a raised position in which the window glass is extended from the door assembly and a lowered position in which the window glass is stored within the door assembly, the window regulator comprising:

• a pair of elongated tracks mounted to the door assembly, each track including a vertical run portion and having two spaced side walls connected by a back wall to define a longitudinal slot extending substantially the length of the track, the side walls terminating opposite the back wall in opposed inturned lips;
• a pair of elongated slide members each disposed within the slot of a corresponding one of the tracks for longitudinal sliding therein;
• drive means for driving back-and-forth longitudinal sliding of the slide members in the slots of the tracks;
• a pair of securement members, each mounted to a corresponding one of the tracks for longitudinal sliding thereon, having a front surface disposed within the slot in locking engagement with the slide member, side surfaces forming longitudinal grooves slidingly receiving the inturned lips of the track side walls, and a back surface disposed outside the slot;
• a pair of carrier members, each mounted to a corresponding one of the tracks for longitudinal sliding thereon in locking engagement with the securement member while supporting the window glass, having a carrier front wall overlying the slot, opposed carrier side walls extending from opposite sides of the carrier front wall to overlie a corresponding one of the track side walls in sliding contact therewith, and a carrying wall providing longitudinally extended support of the window glass.