Patent GB-829463-A (GB)
Title: Improvements relating to apparatus for moving windows, especially in motor vehicles
IPC: E05F11/38
Filed: 1957-09-03
Abstract: 829,463. Windows. DAIMLER-BENZ. A.G. Sept. 3, 1957, [Sept. 3, 1956; July 17, 1957], No. 27834/57. Class 20(3) Apparatus for moving a window, especially a window of a motor vehicle, wherein the actuation of means for moving the window is effected by a movable arm rest. for example an arm rest movably mounted on an interior wall of a vehicle, such arm rest being operatively connected to the window-moving means. An arm rest (not shown) is mounted for longitudinal movement (Fig. 2), on projections 1 on a slide 10 guided on a fixed plate 18 within the vehicle wall. Guiding means comprise a rail 8 grooved to receive a plurality of balls held in cups 16 along, the upper edge of the slide 10 and a rail 9 engaged by a strip 20 of self-lubricating material held resiliently by a leaf spring (not shown) at the edge 22 of the slide 10. Welded to the slide 10 is one limb of a U-section pressing 23, the other limb extending through a slot 24 in the plate 18 and having a connecting member 25 articulated on it. The member 25 is pivotally connected at its other end to the shorter arm 30 of an angle lever 26, the other arm 28 of which carries a pin (not shown) which slides in a slot in the lower horizontal window frame member. Means for balancing the weight of the window comprises a spring 31 carried by the arm 30 and anchored to the plate 18. To hold the window at any desired height, a catch 35 mounted on a lever 34 pivoted at 32 on the pressing 23 engages in a notched bar 33 on the plate 18. A push rod 37 articulated on the end of the lever 34 is freely movable inside the arm rest and carries a spring 39 which normally presses the catch 35 against the bar 33 but which may be released by pressure on a knob 38. In a further embodiment, Fig. 9, the window is raised and lowered by an arm 42 with a roller 43 engaging in a guide slot 44 in the lower window frame. The other end 46 of the arm 42 (Fig. 5) together with a toothed wheel 47 fixed to it are mounted rotatably on a pivot 48, secured by means of a collar 50 on a coaxial pivot 49 to a stirrup 51 bolted to the inner wall 52 of the veihcle door. An arm rest 54 is rockably mounted on the pivot 49 through a sleeve 55 which carries at its other end a drive lever 56. A pin 63 (Fig. 8), on the free end 61 of the lever 56 carries at one end a two-direction catch 64 co-operating with the toothed wheel 47 and at the other a toggle switch which comprises a lever 65 co-operating with a U-shaped stirrup 66 carrying a spring 68. In one end position of the switch (not shown) the tooth 71 of the catch 64 engages the wheel 47 and couples the arm rest 54 with the arm 42 for clockwise movement of the arm rest. In the other end position (Fig. 9), the tooth 71<SP>1</SP> engages the wheel 47 and couples the arm rest 54 and arm 42 for anti-clockwise movement. In the intermediate position of the switch the arm rest and arm 42 are uncoupled. The toggle switch is controlled by linkage (Fig. 9) comprising a lever 73 articulating with a pin 70 on the switch and connecting through guide means 73<SP>1</SP> with a Bowden cable 74 terminating in a button, 75 and carrying a spring 77. In the horizontal position of the arm rest 54 (Fig. 9), the front edge of the lever 56 abuts against the stirrup 51 at 78 and the toggle switch linkage is left at rest, i.e. with the tooth 71<SP>1</SP> engaging the wheel 47. To raise the window, the arm rest is swung upward to position 54<SP>1</SP>, the lever 56 driving the wheel 47 in an anticlockwise direction and thus raising the arm 42, until the rear edge of the lever 56 abuts at 78<SP>1</SP> against the Stirrup 51. The arm rest is then swung back to position 54, the tooth 71 riding over the wheel 47 and the window being supported by friction or by springs. The operation may be repeated to raise the window higher. To lower the window, pressure is applied to the button 75 to rock the catch 64 and the arm rest is raised to position 54<SP>1</SP>. During the return of the arm rest to position 54, the tooth 71 turns the wheel 47 in a clockwise direction and thus moves the arm 42 to lower the window. The operation may be repeated to lower the window further.