Patent application number | Description | Published |
20080224482 | Electrical Door Latch - A latching apparatus may have a normal mode of operation in which a mechanical signal is employed to actuate a door pawl, and hence to release a door latch ratchet. An electrical actuator may be employed to send that mechanical signal, and operation of the actuator may be governed by an electronic control unit (ECU). The latch apparatus may also have a second, or emergency, mode of operation in which a second mechanical signal path is employed either to cause an augmented force to be employed to release the pawl, or to cause a sudden impulse to urge the pawl to release, the sudden impulse being driven by a release of energy from an energy storage device, in particular a mechanical energy storage device. The apparatus may include either an electrical or a mechanical door handle interrupt to prevent unwanted activation. The device may also include an auxiliary electrical back-up power source in the event of a main power source failure. | 09-18-2008 |
20100283268 | Closure Latch with Inertia Member - In one aspect, the invention is directed to a closure latch for a vehicle door, wherein during a crash event, the closure latch has an inertia member that prevents the vehicle door from opening. The inertia member may only temporarily prevent the vehicle door from opening, or alternatively it may cause a lock lever to move to a locked position, so that the vehicle door remains locked even after the inertia member is no longer actuated. | 11-11-2010 |
20120181798 | DOOR LATCH WITH OPENING MEMORY FEATURE - A closure latch for a vehicle door is provided. The closure latch includes an emergency lock actuator to permit a person to lock the door in the event that the power lock actuator is unusable. The latch also includes an ‘impatient passenger’ feature, which permits the doors to be unlocked using the remote keyless-entry feature on the key fob even in a situation where an ‘impatient passenger’ had prematurely lifted the door handle of the vehicle. In some prior art latches, such an action by an ‘impatient passenger’ would prevent the drive motor on the latch from unlocking the latch, thereby necessitating the owner to press the unlock button on the key fob a second time. There is some overlap in the components that used for the ‘impatient passenger’ feature and the components used for the emergency lock actuator, thereby reducing cost and complexity of the latch. | 07-19-2012 |
20120313384 | VEHICULAR LATCH WITH DOUBLE PAWL ARRANGEMENT - A low release effort eccentric double pawl vehicle latch includes a ratchet, primary pawl, auxiliary ratchet and secondary pawl in combination with a secure lock lever. The secure lock lever selectively inhibits movement of the secondary pawl to prevent premature or unintended opening of the latch. A drive mechanism sequences movement of the secure lock lever and secondary pawl to open the latch. Upon reset, the drive mechanism drives the auxiliary ratchet back to its closed state and in the process the auxiliary ratchet can engage and return the secondary pawl back to a closed state in the event of an insufficient bias force thereon. | 12-13-2012 |
20140175813 | ELECTRICAL VEHICLE LATCH - An electrical vehicle latch including a support assembly, a releasable closure mechanism carried by the support assembly and adapted to releasably engage a striker, an electrically-operated actuator assembly carried by the support assembly and which can be selectively activated to release the closure mechanism from the striker or to lock the closure mechanism in a condition of engagement with the striker, and an electrical control unit having a printed circuit board for controlling operation of the actuator assembly. The support assembly including a first support body carrying at least a ratchet of the closure mechanism in a position parallel to a first plane (P | 06-26-2014 |
20150240536 | LATCH FOR A DOOR OF A MOTOR VEHICLE - A door latch for a motor vehicle includes a supporting body, a closing assembly cooperating with a latch striker, an opening mechanism having an opening lever rotatable about a first axis, and an inertia lever hinged to the supporting body about a second axis and being free to rotate about the second axis between a release position in which the inertia lever is decoupled from opening mechanism, and a first blocking position and a second blocking position in which the inertia lever engages the opening lever and prevents the opening mechanism from moving the closing assembly from a closing configuration to an opening configuration. | 08-27-2015 |
20150240537 | LATCH FOR A DOOR OF A MOTOR VEHICLE - A latch for a door of a motor vehicle includes a supporting body, a closing assembly adapted to cooperate with a latch striker, and an opening mechanism which can move between a latched configuration and an unlatched configuration. An inertia lever is fitted to the supporting body and is free to oscillate from a first position to a second position. The latch includes a blocking lever movable between a release position and a stable blocking position. The inertia lever and the blocking lever are coupled in such a way that movement of inertia lever from the first position and the second position causes the movement of blocking lever from the release position to the stable blocking position. | 08-27-2015 |
20160032626 | DOOR LATCH WITH OPENING MEMORY FEATURE - A closure latch for a vehicle door is provided. The closure latch includes an emergency lock actuator to permit a person to lock the door in the event that the power lock actuator is unusable. The latch also includes an ‘impatient passenger’ feature, which permits the doors to be unlocked using the remote keyless-entry feature on the key fob even in a situation where an ‘impatient passenger’ had prematurely lifted the door handle of the vehicle. In some prior art latches, such an action by an ‘impatient passenger’ would prevent the drive motor on the latch from unlocking the latch, thereby necessitating the owner to press the unlock button on the key fob a second time. There is some overlap in the components that used for the ‘impatient passenger’ feature and the components used for the emergency lock actuator, thereby reducing cost and complexity of the latch. | 02-04-2016 |