Patent US4644692A successfully refreshed from Google Patents.
US4644692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive assembly for the wing of a swing-out sliding door
Assignee: Gebrueder Bode GmbH and Co KG
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Filing: 1985-05-20
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Granted: 1987-02-24
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Expires: 2005-05-20
Abstract
Abstract Driving device for the wing of a swing-out type sliding door, in particular, a swing-out type outer sliding door for vehicles, including two or more spaced apart reversing rollers, one of which is located adjacent to the doorway. A belt is guided around the rollers and is pivotably attached to the wing of the door. The belt is reversibly driven, exerting a force on the wing coincident to its direction of movement.
Inventors
- 👤 Manfred Schindehutte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:03
CPC Classifications
E; E05; E05D; E05D15/00; E05D15/06; E05D15/10; E05D15/1042; E05D15/1044; E05F; E05F15/00; E05F15/60; E05F15/603; E05F15/632; E05F15/643; E05F15/646; E05D15/1005; E05D15/1007; E05D2015/1028; E05D2015/1031; E05D2015/1034; E05D2015/1055; E05D2015/1057; E05Y; E05Y2900/00; E05Y2900/50; E05Y2900/51; E05Y2900/53; E05Y2900/531
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
114 words
A drive assembly for the wing of a swing-out type sliding door, wherein the wing slides into and out of a doorway, comprising: at least two spaced-apart reversing rollers, one of which is positionable adjacent to the doorway: a belt guided around said rollers; a guide element for the wing of the door, including a guide rail having a curved end piece, said guide rail being positioned adjacent to said belt with said curved end piece thereof disposed adjacent to said one reversing roller, and a roller carriage mounted on said rail for movement therealong which is adapted for pivotable securement to the door wing; and means for coupling said belt to said carriage.
Claim 2
Dependent Claim
114 words
A drive assembly for the wing of a swing-out type sliding door, wherein the wing slides into and out of a doorway, comprising: at least two spaced-apart reversing rollers, one of which is positionable adjacent to the doorway: a belt guided around said rollers; a guide element for the wing of the door, including a guide rail having a curved end piece, said guide rail being positioned adjacent to said belt with said curved end piece thereof disposed adjacent to said one reversing roller, and a roller carriage mounted on said rail for movement therealong which is adapted for pivotable securement to the door wing; and means for coupling said belt to said carriage.
Claim 3
Dependent Claim
15 words
The drive assembly according to claim 1, additionally including means for reversibly driving said belt.
Claim 4
Dependent Claim
68 words
The drive assembly according to claim 1, wherein said curved end piece of said guide rail has approximately the same center of curvature and radius of curvature as said one reversing roller so that upon driving said belt, said belt exerts a driving force on the wing of the door coinciding with the direction of motion of the wing even in the final phase of the closing movement.
Claim 5
Dependent Claim
62 words
The drive assembly according to claim 1, wherein said means for coupling said belt to said guide element is a tension-compression-type connecting element pivotably linking said carriage to said belt so that, when the wing is in a closed position relative to the doorway, said connecting element assumes a dead center position, thereby tending to maintain the door in said closed position.
Claim 6
Dependent Claim
55 words
The drive assembly according to claim 1, wherein said means for connecting comprises a stationary guide rail positioned adjacent to and along said belt, a carriage slidably mounted on said guide rail and affixed to said belt, and parallelogram guide means pivotably connected to said carriage and adapted for pivotable securement to the door wing.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-02-23 | 1990-08-25 | 1991-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-23 | 1994-08-25 | 1995-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-23 | 1998-08-25 | 1999-02-24 | $7700.00 | Window Closed / Lapsed |