A lock mechanism is provided for use with a door assembly. The lock mechanism includes a lock bracket configured to connect to a door or hatch; a lock pin can be selectively moved between an engaged position in which the lock pin engages the lock bracket and a disengaged position in which the lock pin does not engage the lock bracket; and a linkage assembly connected to the lock pin and configured to be actuated to reversibly move the lock pin between the engaged position and the disengaged position, and a door or hatch release device can switch the lock pin from the engaged position to the disengaged position if the door or hatch release device is actuated after the linkage assembly has moved the lock pin into the engaged position.

A lock mechanism is provided for use with a door assembly. The lock mechanism includes a lock bracket configured to connect to a door or hatch; a lock pin can be selectively moved between an engaged position in which the lock pin engages the lock bracket and a disengaged position in which the lock pin does not engage the lock bracket; and a linkage assembly connected to the lock pin and configured to be actuated to reversibly move the lock pin between the engaged position and the disengaged position, and a door or hatch release device can switch the lock pin from the engaged position to the disengaged position if the door or hatch release device is actuated after the linkage assembly has moved the lock pin into the engaged position.

A door latch device includes a latch mechanism, an inner lever having a connection lever and an actuation lever, and a lock mechanism switching between unlocked and locked state. The lock mechanism includes a connection member capable of transmitting operation of the connection lever to the actuation lever, a first rotating lever rotated by a motor to first and second working positions, a second rotating lever rotatable to a first rotation position where the connection member is moved to an unlock position and a second rotation position where the connection member is moved to a lock position, a connection spring connecting the first rotating lever and the second rotating lever while allowing relative rotation of them, and a holding spring having a biasing force stronger than a biasing force of the connection spring and holds the first rotating lever at the first and second working positions.

A power actuator for a latch of a motor vehicle closure panel has an electric motor to rotate a lead screw about an axis. A nut is disposed about the lead screw for selective translation along the lead screw. A clutch plate is configured for selective rotation about the axis when engaged with the nut, with a biasing member biasing the nut out of engagement with the clutch plate when the electric motor is de-energized. A carrier member is coupled with the nut to cause the nut to translate into engagement with the clutch plate during rotation of the lead screw, whereupon the nut and carrier member co-rotate with the clutch plate and leadscrew. A driven member is operably coupled with the clutch plate and with the latch via a cable/rod, such that the driven member maintains the latch in a cinched state when the electric motor is energized.

A power actuator for a latch of a motor vehicle closure panel has an electric motor to rotate a lead screw about an axis. A nut is disposed about the lead screw for selective translation along the lead screw. A clutch plate is configured for selective rotation about the axis when engaged with the nut, with a biasing member biasing the nut out of engagement with the clutch plate when the electric motor is de-energized. A carrier member is coupled with the nut to cause the nut to translate into engagement with the clutch plate during rotation of the lead screw, whereupon the nut and carrier member co-rotate with the clutch plate and leadscrew. A driven member is operably coupled with the clutch plate and with the latch via a cable/rod, such that the driven member maintains the latch in a cinched state when the electric motor is energized.

A power actuator for a latch of a motor vehicle closure panel has an electric motor to rotate a lead screw about an axis. A nut is disposed about the lead screw for selective translation along the lead screw. A clutch plate is configured for selective rotation about the axis when engaged with the nut, with a biasing member biasing the nut out of engagement with the clutch plate when the electric motor is de-energized. A carrier member is coupled with the nut to cause the nut to translate into engagement with the clutch plate during rotation of the lead screw, whereupon the nut and carrier member co-rotate with the clutch plate and leadscrew. A driven member is operably coupled with the clutch plate and with the latch via a cable/rod, such that the driven member maintains the latch in a cinched state when the electric motor is energized.

A power actuator for a latch of a motor vehicle closure panel has an electric motor to rotate a lead screw about an axis. A nut is disposed about the lead screw for selective translation along the lead screw. A clutch plate is configured for selective rotation about the axis when engaged with the nut, with a biasing member biasing the nut out of engagement with the clutch plate when the electric motor is de-energized. A carrier member is coupled with the nut to cause the nut to translate into engagement with the clutch plate during rotation of the lead screw, whereupon the nut and carrier member co-rotate with the clutch plate and leadscrew. A driven member is operably coupled with the clutch plate and with the latch via a cable/rod, such that the driven member maintains the latch in a cinched state when the electric motor is energized.

A screw-driven control system includes a driving mechanism fixed in a cross beam, a guide locking piece and a limiting mechanism. The driving mechanism includes a screw rod and a motor driven nut assembly having a transmission frame, a nut sleeved in the screw rod, and a follow-up member fixed in the nut; the nut is mounted in the transmission frame, and the transmission frame is connected with a controlled object; the screw rod drives the nut assembly to reciprocate axially along the screw rod.

A screw-driven control system includes a driving mechanism fixed in a cross beam, a guide locking piece and a limiting mechanism. The driving mechanism includes a screw rod and a motor driven nut assembly having a transmission frame, a nut sleeved in the screw rod, and a follow-up member fixed in the nut; the nut is mounted in the transmission frame, and the transmission frame is connected with a controlled object; the screw rod drives the nut assembly to reciprocate axially along the screw rod.

A motor vehicle latch, in particular a motor vehicle door latch, is equipped with a locking mechanism consisting substantially of a catch and a pawl. An electromotive drive for a coupling lever is further provided as part of a power locking unit. In addition, a first operating lever is provided, wherein in the “unlocked” position of the power locking unit, said first operating lever works on the coupling lever that is then engaged in order to open the locking mechanism, and wherein in the “locked” position of the power locking unit, said first operating lever performs an idle stroke relative to the coupling lever that is then disengaged. According to the invention, the electromotive drive works with a linear thrust member on the coupling lever, wherein the linear thrust member is held in at least one position with the aid of a blocking levers).