US3705738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door latch mechanism
Assignee: Aisin Corp
•
Filing: 1970-09-28
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Granted: 1972-12-12
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Expires: 1990-09-28
Abstract
Abstract An automotive door latch mechanism comprising a rotatable latch bolt in the form of a fork, and a bolt-supporting shaft, said shaft being enlarged at a part with which a striker pin is engageable thereby permitting its tight engagement with the striker pin for preventing the lowering of the vehicle door relative to the stationary member thereof.
Inventors
- 👤 Noboru Yoshimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:59
CPC Classifications
E; E05; E05B; E05B85/00; E05B85/20; E05B85/24; E05B85/243; E05B77/00; E05B77/36; E05B77/38; E05B77/14; E05B77/18; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1044; Y10T292/1045; Y10T292/1047; Y10T292/68; Y10T292/688
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
174 words
A door latching mechanism comprising, a base plate including a hanger plate and fixed to the door, a cover plate fixed to said base plate opposite to said hanger plate with respect to said base plate, 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, a striker-pressing member pivotally mounted on said second shaft, abutment means forming a part of one of said cover plate and hanger plate, resilient means permitting resilient engagement between said striker-pressing member and said abutment means when said striker-pressing means is pressed by the striker pin when the latch bolt is brought to its fully latched position.
Claim 2
Dependent Claim
174 words
A door latching mechanism comprising, a base plate including a hanger plate and fixed to the door, a cover plate fixed to said base plate opposite to said hanger plate with respect to said base plate, 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, a striker-pressing member pivotally mounted on said second shaft, abutment means forming a part of one of said cover plate and hanger plate, resilient means permitting resilient engagement between said striker-pressing member and said abutment means when said striker-pressing means is pressed by the striker pin when the latch bolt is brought to its fully latched position.
Claim 3
Dependent Claim
35 words
A door latching mechanism as claimed in claim 1 wherein said first shaft includes an enlarged portion for permitting tight engagement with the striker pin when the latch bolt is in its fully latched position.
Claim 4
Dependent Claim
33 words
A door latching mechanism as claimed in claim 1 wherein said hanger plate extends outwardly from said base plate toward the outside of the door and is formed integrally with said base plate.
Claim 5
Dependent Claim
33 words
A door latching mechanism as claimed in claim 1 wherein said pawl engages said latch bolt in the same plane as the plane of engagement of said latch bolt with the striker pin.
Claim 6
Dependent Claim
41 words
A door latching mechanism as claimed in claim 1 and further comprising a spring attached to said latching bolt for normally urging said latching bolt toward its unlatched position, said spring being disposed around said first shaft to be guided thereby.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-12 | 1976-06-12 | 1976-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-12 | 1980-06-12 | 1980-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-12 | 1984-06-12 | 1984-12-12 | $7700.00 | Window Closed / Lapsed |