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US4902058A Expired / Lapsed US ⏱️ 0.0 years remaining

Door lock

Assignee: Aisin Corp
•
Filing: 1988-12-16
•
Granted: 1990-02-20
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Expires: 2008-12-16
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Abstract

Abstract A door lock has an open lever linked with an open rod and pivotally mounted on a base plate and a locking lever linked with a locking link and pivotally mounted on a sub plate, the open lever and the locking lever being linked with each other through a locking rod so that a door is selectively locked and unlocked by the pivotal motion of the open lever which is caused by the pivotal motion of the locking lever. The door lock further has a protective wall in the shape of an upright wall which is formed integral with the side surface of the open lever which faces the locking lever. Since the protective wall which is formed integral with the open lever functions as a protective means, it is possible to reduce the number of parts and the number of man-hours needed for the assembling operation and further use the door lock in common to all types of vehicle.

Inventors

  • 👤 Masao Ohhashi
  • 👤 Yoshimasa Ishiguro

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 08:55
CPC Classifications
E; E05; E05B; E05B83/00; E05B83/36; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1044; Y10T292/1045; Y10T292/1047; Y10T292/62; Y10T292/79; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/7915

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 110 words
A door lock having an open lever linked with an open rod and pivotally mounted on a base plate and a locking lever linked with a locking link and pivotally mounted on a sub plate, said open lever and said locking lever being linked with each other through a locking rod so that a door is selectively locked and unlocked by the pivotal motion of said open lever which is caused by the pivotal motion of said locking lever, wherein the improvement comprises a protective wall in the shape of an upright wall which is formed integral with the side surface of said open lever which faces said locking lever.
Claim 2
Dependent Claim 110 words
A door lock having an open lever linked with an open rod and pivotally mounted on a base plate and a locking lever linked with a locking link and pivotally mounted on a sub plate, said open lever and said locking lever being linked with each other through a locking rod so that a door is selectively locked and unlocked by the pivotal motion of said open lever which is caused by the pivotal motion of said locking lever, wherein the improvement comprises a protective wall in the shape of an upright wall which is formed integral with the side surface of said open lever which faces said locking lever.

References Cited (Backward Citations)

US3781045A Cited
US4508379A Cited
US4628300A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-02-19 1993-08-21 1994-02-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-02-19 1997-08-21 1998-02-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-02-19 2001-08-21 2002-02-20 $7700.00 Window Closed / Lapsed

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