Electrically driven window lifter e.g. for motor vehicle - uses direct drive between rack mounted on door and pinion rotated by motor on window glass

摘要

An electric motor (1) is mounted on the window pane with a two-point fixture (2), and rotates a toothed pinion (3) in mesh with a rack (5) secured at two points to the door of the vehicle within which the window is raised and lowered. The vertical movement is guided by a roller (4). The drive is direct and does not involve any traction cable or other mechanism with its associated complexity and cost. ADVANTAGE - Fewer mechanical components are required with rack-and-pinion drive in comparison with conventional Bowden cable or scissors mechanism.