Window arrangement with sliding pane

#This invention relates to sliding windows, and particularly to a window arrangement in which a window pane is guided in two channels elongated in a common direction and spaced transversely of that direction.

#Typical of the window arrangements with which this invention is concerned are the window panes on the doors of automotive vehicles which can be raised and lowered by means of a regulator mechanism and are guided laterally in glass run channels. Precise lateral guiding of such a window pane is particularly important to avoid jamming if the regulator mechanism has but a single arm connected to the pane in an off-center position.

#When the door structure supporting the window and associated elements is relatively thin, a lock element necessarily mounted in the door may occupy space otherwise needed for a portion of a glass run channel, and it becomes necessary to shorten one of the channels. If a gap is provided in the one channel to accomodate the lock element, the window pane withdrawn from the lower channel section during closing of the window may be difficult to introduce again into the lower channel section during opening of the window unless the supporting door structure is made very rigid and resistant to even minor deformation. A window pane will rattle when in the open position if mounted on a single regulator arm and guided on one side in a shortened glass run channel.

#Other features, additional objects, and many of the attendant advantages of this invention will readily be appreciated as the same becomes better understood by reference to the following detailed description of a preferred embodiment and of a modification thereof when considered in connection with the appended drawing in which:

#FIG. 1 is a fragmentary, partly sectional, side-elevational view of a door on a passenger car equipped with a window arrangement of the invention;

#FIG. 2 shows an element of the device of FIG. 1 as viewed in the direction of the arrow II; and

#Referring now to the drawing in detail, and initially to FIG. 1, there is shown only as much of a door in a passenger car as is necessary for an understanding of the invention, the non-illustrated portions of the door and other elements of the car being conventional.

#The lower edge of the window pane 1 in the door carries a fixedly fastened horizontal track 2 engaged by a roller 4 at the free end of a window regulator arm 3, only partly shown. When a handcrank on the inside of the door is turned, the arm 3 is pivoted so that the roller 4 moves in a circular arc and raises or lowers the window pane 1, the point of attack of the arm 3 on the window pane 1 moving along the track 2 and being usually offset from the vertical median line of the pane 1.

#To prevent tilting of the pane 1, its upright edges are received in two parallel glass run channels 5, 5' provided with respective fabric or rubber composition liners 7, 7', the channels and liners being U-shaped in cross section. The channels 5, 5' are fixedly fastened to the sheet metal of the door frame 8. The non-illustrated top ends of the channels 5, 5' are on a common level, but the channel 5 projects beyond the lower end of the channel 5' which is cut short to provide space for a lock 6, not shown in detail. In the illustrated, partly closed position, the window pane 1 barely projects beyond the lower end of the channel 5'.