US3583741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety door lock for automotive vehicles having inertia equalizing means
Assignee: Daimler Benz AG
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Filing: 1969-03-06
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Granted: 1971-06-08
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Expires: 1989-03-06
Abstract
Abstract Lock arrangement for motor vehicle doors wherein a weighted pivot lever is spring biased into position with respect to the operating members of the lock so as to move into contact therewith against the opening direction thereof on interpose itself into the path of movement thereof in the opening direction in response to application of acceleration shocks thereto.
Inventors
- 👤 Werner Breitschwerdt
- 👤 Gunter Gmeiner
- 👤 Christian Grabner
- 👤 Gerhard Sigmund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:38
CPC Classifications
E; E05; E05B; E05B77/00; E05B77/02; E05B77/04; E05B77/06; E05B1/00; E05B1/0038; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1044; Y10T292/1045; Y10T292/1047; Y10T292/1075; Y10T292/1083; Y10T292/1092
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
100 words
A lock, especially a safety door lock for automotive vehicles, for securing the locked position of the door against being opened due to substantially transverse impact forces on the vehicle, characterized in that the door lock has a latching mechanism and inertia equalizing means associated with said latching mechanism and comprising spring-loaded lever means which are adjusted against the spring load, in case spring-loaded mass accelerations affecting the vehicle tranSversely, due to the inertia of said lever means in such a manner that movement of said latching mechanism between a first latching position and a second unlatching position is prevented.
Claim 2
Dependent Claim
100 words
A lock, especially a safety door lock for automotive vehicles, for securing the locked position of the door against being opened due to substantially transverse impact forces on the vehicle, characterized in that the door lock has a latching mechanism and inertia equalizing means associated with said latching mechanism and comprising spring-loaded lever means which are adjusted against the spring load, in case spring-loaded mass accelerations affecting the vehicle tranSversely, due to the inertia of said lever means in such a manner that movement of said latching mechanism between a first latching position and a second unlatching position is prevented.
Claim 3
Dependent Claim
60 words
A lock as defined in claim 1, wherein said lever means includes a two-armed lever having a counterweight formed at one end of one arm thereof, the other arm of said lever being positioned for movement in the path of said latching mechanism against movement thereof due to inertial forces from said first latching position to said second unlatching position.
Claim 4
Dependent Claim
35 words
A lock as defined in claim 2, wherein said inertia equalizing means further includes a spring connected to said two-armed lever to bias said other arm of said lever into contact with said latching mechanism.
Claim 5
Dependent Claim
30 words
A lock as defined in claim 3, wherein said counterweight is dimensioned to provide a given acceleration value sufficient to oppose translation of said latching mechanism due to inertial forces.
Claim 6
Dependent Claim
67 words
A lock as defined in claim 1, wherein said lever means includes a two-armed lever having a counterweight formed at one end of one arm thereof, said lever being positioned with the other arm thereof normally adjacent to the translational path of said latching mechanism so as to be rotatable by inertial forces on said counterweight into said translational path to block movement of said latching mechanisms,
Claim 7
Dependent Claim
26 words
A lock as defined in claim 5, wherein a spring is connected to said two-armed lever to bias said lever into its normal or rest position.
Claim 8
Dependent Claim
51 words
A lock as defined in claim 6, wherein the pivot of said two-armed lever is positioned on a line passing through the point of contact of said other arm with said latching mechanism and coextensive with the direction of attempted movement of said mechanism in the blocking position of said lever.
Claim 9
Dependent Claim
50 words
A lock as defined in claim 1, wherein said latching mechanism includes a pivotable latch actuating member and operating means manually translatable between said first and second positions for actuating said latch actuating member, said lever means being responsive to inertial forces for preventing pivoting of said latch actuating member.
Claim 10
Dependent Claim
95 words
A lock as defined in claim 8, wherein said latch actuating member is a first lever arm in contact with said operating means and pivotable in a first direction thereby, said lever means being provided in the form of a second two-armed lever having a counterweight on one arm thereof, the other arm of said second lever being positioned in contact with said first lever arm for movement in response to inertial forces in a direction opposite said first lever arm thereby preventing pivoting thereof in said first direction due to said inertial forces alone.
Claim 11
Dependent Claim
34 words
A lock as defined in claim 9, wherein said inertia equalizing means further includes a spring connected to said second lever to bias said other arm thereof into contact with said first lever arm.
Claim 12
Dependent Claim
87 words
A lock as defined in claim 8, wherein said latch actuating member is a first lever arm in contact with said operating means and pivotable in a first direction thereby said lever means being provided in the form of a second two-armed lever having a counterweight on one arm thereof, the other arm of said second lever being positioned adjacent the path of travel of said first lever arm and movable in response to inertial forces on said counterweight into blocking contact with said first lever arm.
Claim 13
Dependent Claim
47 words
A lock as defined in claim 11, wherein the pivot of said two-armed lever is positioned on a line passing through the point of contact of said other arm with said first lever arm and coextensive with the direction of attempted movement of said first lever arm.
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) | 1974-06-07 | 1974-12-07 | 1975-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-07 | 1978-12-07 | 1979-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-07 | 1982-12-07 | 1983-06-08 | $7700.00 | Window Closed / Lapsed |