US3767243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door latch mechanism
Assignee: Aisin Corp
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Filing: 1972-06-27
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Granted: 1973-10-23
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Expires: 1992-06-27
Abstract
Abstract An automotive door latch mechanism comprising a rotatable latch bolt in the form of a fork and a bolt-supporting shaft and a striker pin for engagement by said latch bolt, said mechanism including a cancelling lever to release engagement between the striker pin and the latch bolt, an open lever for actuating the cancelling lever and a locking lever for preventing the cancelling lever from releasing the engagement between the striker pin and the latch bolt.
Inventors
- 👤 N Yoshimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:05
CPC Classifications
E; E05; E05B; E05B85/00; E05B85/20; E05B85/24; E05B85/243; E05B77/00; E05B77/36; E05B77/38; E05B85/04; E05B85/045; E05B77/14; E05B77/18; Y; Y10; Y10S; Y10S292/00; Y10S292/26; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1044; Y10T292/1045; Y10T292/1047
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
166 words
A door latching mechanism comprising, a base plate including a hanger plate and affixed to the door, a cover plate fixed to said base plate opposite to said hanger plate with respect to said base plate and provided with an elongated slot, a first shaft rigidly mounted on and between said hanger plate and said cover plate, a latch bolt in the form of a rotatable fork pivotally mounted on said first shaft and adapted for engagement with a striker pin, a second shaft rigidly mounted on and between said hanger plate and said cover plate subsTantially in parallel relationship with said first shaft, a pawl pivotally mounted on said second shaft to retain the engagement of said latch bolt and striker pin, said pawl being provided with a pin mounted for movement in said elongated slot, and a cancelling lever mounted coaxially with said pawl and fixed to said pin for moving said pawl to release the engagement of said latch bolt and striker pin.
Claim 2
Dependent Claim
166 words
A door latching mechanism comprising, a base plate including a hanger plate and affixed to the door, a cover plate fixed to said base plate opposite to said hanger plate with respect to said base plate and provided with an elongated slot, a first shaft rigidly mounted on and between said hanger plate and said cover plate, a latch bolt in the form of a rotatable fork pivotally mounted on said first shaft and adapted for engagement with a striker pin, a second shaft rigidly mounted on and between said hanger plate and said cover plate subsTantially in parallel relationship with said first shaft, a pawl pivotally mounted on said second shaft to retain the engagement of said latch bolt and striker pin, said pawl being provided with a pin mounted for movement in said elongated slot, and a cancelling lever mounted coaxially with said pawl and fixed to said pin for moving said pawl to release the engagement of said latch bolt and striker pin.
Claim 3
Dependent Claim
55 words
A door latching mechanism as claimed in claim 1 and further comprising, an open lever, an intermediate lever operatively connected with said open lever, said cancelling lever being provided with a first projecting flange for engagement by said intermediate lever when said open lever is actuated, whereby said pawl is released from said latch bolt.
Claim 4
Dependent Claim
91 words
A door latching mechanism as claimed in claim 2 wherein said cancelling lever has an L-shaped configuration, said first projecting flange being on one arm thereof and is further provided with a second projecting flange on the other arm thereof for engagement with said intermediate lever when said cancelling lever is actuated by said pawl, and further comprising a locking lever operatively connected to said intermediate lever whereby said intermediate lever is moved to prevent engagement with said first projecting flange of the cancelling lever when said locking lever is actuated.
Claim 5
Dependent Claim
20 words
A door latching mechanism as claimed in claim 3 wherein said locking lever is mounted coaxially with said cancelling lever.
Claim 6
Dependent Claim
22 words
A door latching mechanism as claimed in claim 3 wherein said locking lever and cancelling lever are mounted on said second shaft.
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) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |