Automotive door latching system
First Claim
Patent Images
1. An automotive closure latching system comprising:
- a first rotary latch (10) for releasably locking a first closure;
said first latch having a locking position and a release position;
said first latch having a first cam surface;
a first electric switch (18) having an actuator engaged with said first cam surface so that when the first latch is moved to the release position, said first switch is operated by said cam surface to a circuit-closed condition;
a second rotary latch (26) for releasably locking a second closure;
said second latch having a locking position and a release position;
said second latch having a second cam surface;
a second master control electric switch (42) in series connection with said first switch;
said second switch having an actuator engaged with said second cam surface so as to be in a circuit-open condition when said second latch is in its locking position;
said second cam surface being effective to operate said second switch to a circuit-closed condition during initial movement of said second latch toward its release position; and
an electro-magnetic means (32) for releasing said second latch;
said release means being in series connection with said first and second switches so that said release means is electrically energized only when both switches are in the circuit-closed conditions;
said release means having a plunger (36) movable from a latch-obstructing position to a non-obstruct position only when said release means is energized, whereby said second latch can be moved to its release position only when the first switch is in the circuit-closed condition.
2 Assignments
0 Petitions
Accused Products
Abstract
An automotive door latching system can include a first latch for locking one vehicle door, a second latch for locking a second vehicle door, and an electric switch controlled by the first switch for supplying current to an electrically-operated latch release means associated with the second latch. The latching system requires that the first latch be in the door release state before the second latch can be moved to the door release state. Consequently the doors are openable only in a predetermined sequence.
45 Citations
3 Claims
-
1. An automotive closure latching system comprising:
-
a first rotary latch (10) for releasably locking a first closure;
said first latch having a locking position and a release position;
said first latch having a first cam surface;a first electric switch (18) having an actuator engaged with said first cam surface so that when the first latch is moved to the release position, said first switch is operated by said cam surface to a circuit-closed condition; a second rotary latch (26) for releasably locking a second closure;
said second latch having a locking position and a release position;
said second latch having a second cam surface;a second master control electric switch (42) in series connection with said first switch;
said second switch having an actuator engaged with said second cam surface so as to be in a circuit-open condition when said second latch is in its locking position;
said second cam surface being effective to operate said second switch to a circuit-closed condition during initial movement of said second latch toward its release position; andan electro-magnetic means (32) for releasing said second latch;
said release means being in series connection with said first and second switches so that said release means is electrically energized only when both switches are in the circuit-closed conditions;
said release means having a plunger (36) movable from a latch-obstructing position to a non-obstruct position only when said release means is energized, whereby said second latch can be moved to its release position only when the first switch is in the circuit-closed condition.
-
-
2. An automotive closure latching system comprising:
-
a first latch for releasably locking a first closure, said first latch having a locking position and a release position; a second latch for releasably locking a second closure, said second latch having a lock position and a release position; a first electric switch controlled by said first latch so that when said first latch is in the release position said first switch is in a circuit-closed condition; an electrically-operated release means for said second latch in series connection with said first switch, whereby said second latch is freely moveable between the locking position and the release position only when said first switch is in the circuit-closed condition; and a second master control electric switch in series connection with said electrically-operated release means, whereby said release means is electrically energized when said second latch is moving from its locking position to its release position.
-
-
3. An automotive closure latching system comprising:
-
a first latch for releasably locking a first closure, said first latch having a locking position and a release position; a second latch for releasably locking a second closure, said second latch having a locking position and a release position; a first electric switch controlled by said first latch so that when said first latch is in the release position said first switch is in a circuit-closed condition; an electrically-operated release means for said second latch in series connection with said first switch, whereby said second latch is freely moveable between the locking position and the release position only when said first switch is in the circuit-closed condition; and a second master control electric switch in series connection with said electrically-operated release means;
said second switch being controlled by said second latch so that initial movement of said second latch from its locking position causes said second switch to electrically energize the electrically-operated release means.
-
Specification