Patent US4283108A successfully refreshed from Google Patents.
Patent US3705738A successfully refreshed from Google Patents.
US3705738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door latch mechanism
Assignee: Aisin Corp
•
Filing: 1970-09-28
•
Granted: 1972-12-12
•
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 03:01
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.
References Cited (Backward Citations)
US3093992A
Cited
US3190682A
Cited
US3287049A
Cited
US3331624A
Cited
US3281176A
Cited
US3371948A
Cited
US3432198A
Cited
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 |