US3890743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle window lifter
Assignee: Kuester and Co GmbH
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Filing: 1973-10-30
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Granted: 1975-06-24
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Expires: 1993-10-30
Abstract
Abstract A vehicle window lifter is disclosed which is a separate subassembly and may be handled and mounted as such. The window lifter comprises a closed cable loop of which a portion is wound aroud a rotatable, crank-operated drum. The drum is mounted on a base plate to which the ends of a first and a second length of cable conduit are secured at opposite sides. Between the respective other ends of the conduits a straight, rigid spacer bar is inserted. The cable travels through the conduits and is openly accessible where it extends in parallel to the spacer bar. The latter is to be mounted in the vehicle substantially in parallel to the direction of movement of the window pane which is connected to the openly accessible cable portion for joint movement with the cable when the crank-operated drum is rotated.
Inventors
- 👤 Wilhelm Eckhardt
- 👤 Klaus Kuster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:34
CPC Classifications
E; E05; E05F; E05F11/00; E05F11/38; E05F11/48; E05F11/481; E05F11/483; E05F11/488; E05F11/486; E05F15/00; E05F15/60; E05F15/603; E05F15/665; E05F15/689; E05Y; E05Y2201/00; E05Y2201/60; E05Y2201/622; E05Y2201/658; E05Y2201/66; E05Y2201/662; E05Y2600/00; E05Y2600/50; E05Y2600/52; E05Y2900/00; E05Y2900/50; E05Y2900/53; E05Y2900/55
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
202 words
A window lifter for vehicles, comprising: a. a base plate; b. a drum rotatably mounted on said base plate; c. a first and a second length of cable conduit, each fastened with one end to said base plate at substantially opposite sides; d. a spacer bar inserted between said respective other ends of said conduits; e. a cable loop closed by pressing a nipple over both cable ends of which a portion is wound around said drum; said cable extending through said first and said second length of conduit and traveling openly accessible in parallel to said spacer bar; f. means for attaching the window pane to said cable hinged on said nipple where said cable is openly accessible along said spacer bar; g. means provided at said base plate and said spacer bar for mounting said window lifter in the vehicle door; and h. fittings for fastening the respective ends of said first and second length of cable conduit to said base plate and said spacer bar, said fittings consisting of a U-shaped sheet metal part provided with a bottom against which the conduit end rests and having tabs on one side for insertion into appropriate holes of the base plate.
Claim 2
Dependent Claim
202 words
A window lifter for vehicles, comprising: a. a base plate; b. a drum rotatably mounted on said base plate; c. a first and a second length of cable conduit, each fastened with one end to said base plate at substantially opposite sides; d. a spacer bar inserted between said respective other ends of said conduits; e. a cable loop closed by pressing a nipple over both cable ends of which a portion is wound around said drum; said cable extending through said first and said second length of conduit and traveling openly accessible in parallel to said spacer bar; f. means for attaching the window pane to said cable hinged on said nipple where said cable is openly accessible along said spacer bar; g. means provided at said base plate and said spacer bar for mounting said window lifter in the vehicle door; and h. fittings for fastening the respective ends of said first and second length of cable conduit to said base plate and said spacer bar, said fittings consisting of a U-shaped sheet metal part provided with a bottom against which the conduit end rests and having tabs on one side for insertion into appropriate holes of the base plate.
Claim 3
Dependent Claim
20 words
A window lifter as claimed in claim 1, wherein said drum is provided with grooves for guiding the cable windings.
Claim 4
Dependent Claim
46 words
A window lifter as claimed in claim 1, wherein said drum comprises a toothed ring and wherein a pinion is mounted on said base plate so as to be in mesh with said toothed ring, said pinion being adapted to be rotated by an outside force.
Claim 5
Dependent Claim
34 words
A window lifter for vehicles as claimed in claim 1, and further comprising a set screw attached to one fitting for varying the length of the conduit and thereby making the cable loop play-free.
Claim 6
Dependent Claim
62 words
A window lifter as claimed in claim 1, and further comprising a storage spring disposed in the interior of the cable drum for storing a portion of the potential energy of the window pane when said pane is lowered; one end of said spring being secured to the inner drum wall and the other end being fastened to the stationary drum axle.
Claim 7
Dependent Claim
52 words
A window lifter as claimed in claim 1, wherein a hole is provided in the wall of said drum and a nipple is pressed on the cable at its middle portion and said cable is threaded with both ends through said hole so that said cable is positively attached to said drum.
Claim 8
Dependent Claim
29 words
A window lifter as claimed in claim 1, and further comprising an electric motor attached to said base plate for rotating said cable drum when said motor is energized.
Claim 9
Dependent Claim
115 words
A window lifter as claimed in claim 7, and further comprising a second spacer bar and one additional length of conduit inserted between said first and second spacer bar for providing an additional cable portion which is openly accessible and may be mounted in parallel to the direction of window travel for fastening a second nipple to the cable to which second nipple a second carrier plate for the window to be lifted may be fastened; the cable extending in such a manner through said first, second and third conduit and along said first and second spacer bar that said first and second nipple travel in the same direction when said cable drum is rotated.
References Cited (Backward Citations)
US3444649A
Cited
US3427748A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-23 | 1978-12-23 | 1979-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-23 | 1982-12-23 | 1983-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-23 | 1986-12-23 | 1987-06-24 | $7700.00 | Window Closed / Lapsed |