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US 5,740,630 AGranted
Cable-driven window lift
AssigneeKuster & Co. GmbH
InventorThomas Medebach
Life of this patent
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AssigneeKuster & Co. GmbH
InventorThomas Medebach
Estimating the term…
A cable window-lift in particular for motor vehicles and comprising a drive (1) for the alternating winding and unwinding of the cable (2) running in at least one loop and which cable, in relation to pane movement, is divided into a cable lifting portion (15) and a cable descending portion (16) and further is linked to a pane lifter (3) displaceable up and down along a guide (5), one spring element (9, 10) being provided in the cable lifting portion (15) and cable descending portion (16) resp. to compensate cable slack. To allow raising and lowering the pane in substantially play-free manner and to avert clattering and/or wind noise, the spring (9) in the cable lifting portion (15), which is compressed when in the pane closed position, evinces a spring force greater than the resultant of the pane weight and the frictional forces arising during pane motion and also larger than the spring force of the spring (10) in the cable descending portion (16).
A cable window-lift in particular for motor vehicles and comprising a drive (1) for alternatingly winding and unwinding a cable (2) running in at least one loop and divided into a cable lifting portion (15) and a cable descending portion (16) as regards a movement of a pane, further comprising a pane lifter (3) displaceable up and down along a guide (5), a first spring element (9) being present in the cable lifting portion (15) and a second spring element (10) in the cable descending portion (16) to compensate cable slackness, wherein the first spring (9) in the cable lifting portion (15) which is compressed when the pane is being closed evinces a spring force larger than the force of displacement resulting from the pane weight and from the friction of the pane being displaced and also larger than the spring force of the second spring (10) mounted in the cable descending portion (16).
A cable window-lift in particular for motor vehicles and evincing a short pane excursion, comprising a drive (1) for the alternating winding and unwinding of a cable (2) running in at least one loop and divided in relation to pane displacement into a cable lifting portion (15) and a cable descending portion (16) and further linked to a lifter (3) moving up and down along a guide (5), a first spring (9) being present in the cable lifting portion (15) and a second spring (10) being present in the cable descending portion (16) to compensate cable slackness, wherein the second spring (10) in the cable descending portion (16), which is loaded during the opening of the pane delivers a spring force larger than the resultant force of the pane weight and the displacement force caused by the friction of the pane being displaced and also larger than the spring force of the first spring (9) mounted in the cable lifting portion (15).
A cable window lift mechanism for raising and lowering a window pane in a motor vehicle comprising;
Dependencies are inferred from the claim text.