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US4948184A Expired / Lapsed US ⏱️ 0.0 years remaining

Motor vehicle door lock

Assignee: MOTOR VEHICLE DOOR LOCK DAIMLER-BENZ AG
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Filing: 1989-01-17
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Granted: 1990-08-14
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Expires: 2009-01-17
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Abstract

Abstract Motor vehicle door lock or the like with a pivotally mounted locking catch (3), a pivotally mounted pawl (4) which blocks the locking catch (3) in a preliminary locking position and a main locking position, and with a locking mechanism (5) for operating the locking catch (3) and pawl (4). The locking mechanism (5) has an outside release lever (6), and when outside release lever (6) is operated, pawl (4) can swing into a release position freeing locking catch (3), e.g., by being lifted. The manipulation of the lock is improved since, in the opening movement, when the locking catch (3) is in the main locking position and the release lever (6) is operated, the pawl (4) is swung into the release position, where it is retained independently of the further operation condition of outside release lever (6) until the locking catch (3) has passed the preliminary locking position.

Inventors

  • 👤 Bernd Weyerstall
  • 👤 Klaus Claar
  • 👤 Jan Schilling

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 11:59
CPC Classifications
E; E05; E05B; E05B83/00; E05B83/36; Y; Y10; Y10S; Y10S292/00; Y10S292/23; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1044; Y10T292/1045; Y10T292/1047; Y10T292/1075; Y10T292/1082

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 277 words
Motor vehicle door lock comprising a pivotally mounted locking catch, a pivotally mounted pawl, said pawl blocking the locking catch in a preliminary locking position and a main locking position, and a locking mechanism for operating the locking catch and pawl, said locking mechanism having at least one release lever for swinging the pawl into a release position freeing the locking catch, and means for retaining the pawl in said release position, independent of further operation of the release lever, until said locking catch has been shifted from said main locking position and has passed the preliminary locking position, and for freeing said pawl from its release position thereafter, said means for retaining being operative only when said pawl is moved into said release position with the locking catch in its main locking position said means for retaining comprising a blocking lever pivotally mounted for swinging into a blocking position in a path of movement of at least one of the pawl and a component coacting with said pawl, such that said pawl is retained in said release position when said blocking lever is in said blocking position; said blocking lever including a stop arm which projects into the path of movement of at least one of the locking catch and a drive pin on the locking catch, whereby said blocking lever is swung by displacement of said stop arm, from said blocking position into a position in which the pawl is freed; wherein said blocking lever comprises a multipart construction which includes a transmission lever for interacting with one of said pawl and said component, and a reversing lever, said reversing lever comprising said stop arm.
Claim 2
Dependent Claim 277 words
Motor vehicle door lock comprising a pivotally mounted locking catch, a pivotally mounted pawl, said pawl blocking the locking catch in a preliminary locking position and a main locking position, and a locking mechanism for operating the locking catch and pawl, said locking mechanism having at least one release lever for swinging the pawl into a release position freeing the locking catch, and means for retaining the pawl in said release position, independent of further operation of the release lever, until said locking catch has been shifted from said main locking position and has passed the preliminary locking position, and for freeing said pawl from its release position thereafter, said means for retaining being operative only when said pawl is moved into said release position with the locking catch in its main locking position said means for retaining comprising a blocking lever pivotally mounted for swinging into a blocking position in a path of movement of at least one of the pawl and a component coacting with said pawl, such that said pawl is retained in said release position when said blocking lever is in said blocking position; said blocking lever including a stop arm which projects into the path of movement of at least one of the locking catch and a drive pin on the locking catch, whereby said blocking lever is swung by displacement of said stop arm, from said blocking position into a position in which the pawl is freed; wherein said blocking lever comprises a multipart construction which includes a transmission lever for interacting with one of said pawl and said component, and a reversing lever, said reversing lever comprising said stop arm.
Claim 3
Dependent Claim 23 words
Motor vehicle door lock according to claim 1, wherein respective free arms of the transmission lever and reversing lever mesh with one another.
Claim 4
Dependent Claim 30 words
Motor vehicle door lock according to claim 2, wherein the free arms of the transmission lever and the reversing lever mesh with one another by a pin and a slot.
Claim 5
Dependent Claim 41 words
Motor vehicle door lock according to claim 1, wherein said blocking lever is spring-loaded toward said blocking position in a manner enabling it to snap past said pawl or said component coacting therewith as the pawl moves into the release position.
Claim 6
Dependent Claim 26 words
Motor vehicle door lock according to claim 4, wherein the spring loading of the blocking lever is produced by a spring placed on said reversing lever.

References Cited (Backward Citations)

US3334934A Cited
US3386761A Cited
US3504511A Cited
US4203621A Cited
GB2155535A Cited
DE3409996A1 Cited
US4815775A Cited
US4783102A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-08-13 1994-02-12 1994-08-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-08-13 1998-02-12 1998-08-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-08-13 2002-02-12 2002-08-14 $7700.00 Window Closed / Lapsed

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