US4219227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lockable door lock for motor vehicles
Assignee: Daimler Benz AG
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Filing: 1979-02-01
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Granted: 1980-08-26
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Expires: 1999-02-01
Abstract
Abstract A latchable door lock for motor vehicles, whose catch element, in addition to be blocked by a locking pawl to be actuated manually, is to be blocked by a further latching element, whose blocking action can be lifted only by means of a fitting key; the further latching element thereby engages directly at the catch element without reaction on the locking pawl while the key-controlled commands are transmitted by way of lines to servo devices coordinated to the remaining doors and/or flaps and displacing the additional latching elements.
Inventors
- 👤 Christian Grabner
- 👤 Rolf Krugener
- 👤 Dieter Feichtiger
- 👤 Rudiger Hoffmann
- 👤 Hermann W. Kurth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:45
CPC Classifications
E; E05; E05B; E05B85/00; E05B85/20; E05B85/24; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1044; Y10T292/1045; Y10T292/1047; Y10T292/1075; Y10T292/1082
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
87 words
A latchable door lock for motor vehicles, comprising catch means operable to be blocked by a first latching means actuatable manually and by an additional latching means whose blocking effect can be cancelled only by means of a fitting key, characterized in that the additional latching means engages directly at the catch means without reaction on the first latching means, and in that key-controlled commands are transmitted by way of lines to servo means coordinated to the remaining doors and/or flaps which displace additional latching means thereof.
Claim 2
Dependent Claim
87 words
A latchable door lock for motor vehicles, comprising catch means operable to be blocked by a first latching means actuatable manually and by an additional latching means whose blocking effect can be cancelled only by means of a fitting key, characterized in that the additional latching means engages directly at the catch means without reaction on the first latching means, and in that key-controlled commands are transmitted by way of lines to servo means coordinated to the remaining doors and/or flaps which displace additional latching means thereof.
Claim 3
Dependent Claim
22 words
A door lock according to claim 1, characterized by means enabling a prelocking of the lock at least on the co-driver side.
Claim 4
Dependent Claim
52 words
A door lock according to claim 1 or 2, characterized in that the additional latching means, when acted upon by the catch means, is supported at a fixed point of a lock housing means without exerting any substantial force on at least one other part operatively connected with the additional latching means.
Claim 5
Dependent Claim
19 words
A door lock according to claim 3, characterized in that the additional part forms part of a servo means.
Claim 6
Dependent Claim
18 words
A door lock according to claim 4, characterized in that the additional part includes a control valve means.
Claim 7
Dependent Claim
18 words
A door lock according to claim 3, characterized in that the additional part includes a control valve means.
Claim 8
Dependent Claim
31 words
A door lock according to claim 3, characterized in that the fixed point is constituted by a bearing pin means of the pivotally arranged additional latching means which includes a lever.
Claim 9
Dependent Claim
47 words
A door lock according to claim 7, characterized in that the servo means includes a pneumatic element having a shifting rod operable to be shortened against spring force, which is pivotally connected at its free end with a latching pawl forming part of the additional latching means.
Claim 10
Dependent Claim
17 words
A door lock according to claim 8, characterized in that the pneumatic element is a vacuum element.
Claim 11
Dependent Claim
65 words
A door lock according to claim 7, characterized in that the servo means includes a pulse-controlled electromagnet means having an armature retained in the end positions thereof by a spring means having a dead-center point, said armature means being pivotally connected at an arm of a two-armed hinge-like lever forming part of the additional latching means, which is operable to be deflected against spring force.
Claim 12
Dependent Claim
49 words
A door lock according to claim 1 or 2, characterized in that the servo means includes a pneumatic element having a shifting rod operable to be shortened against spring force, which is pivotally connected at its free end with a latching pawl forming part of the additional latching means.
Claim 13
Dependent Claim
67 words
A door lock according to claim 1 or 2, characterized in that the servo means includes a pulse-controlled electromagnet means having an armature retained in the end positions thereof by a spring means having a dead-center point, said armature means being pivotally connected at an arm of a two-armed hinge-like lever forming part of the additional latching means, which is operable to be deflected against spring force.
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) | 1983-08-26 | 1984-02-25 | 1984-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-08-26 | 1988-02-25 | 1988-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-08-26 | 1992-02-25 | 1992-08-26 | $7700.00 | Window Closed / Lapsed |