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.

At least one leaf of this door is equipped with a detection device comprising a mechanical detection device and a contactless sensor each capable of detecting a presence. The control circuit board comprises a control unit for movement of each leaf and a diagnostic unit, while means transfer, from the detection device in the direction of the diagnostic unit and the control unit, a first item of information representative of the activation state of the mechanical device, and a second item of information representative of the activation state of the contactless sensor. The diagnostic unit can identify a malfunction at least of the contactless detection device, when the first item of information has an active value while the second item of information has an inactive value. The invention allows redundancy to improve the availability of the detection device, while performing predictive maintenance for the operator, in particular a malfunction of the contactless sensor.

A vehicle door lock release mechanism includes a plate assembly coupled with a vehicle, sliding plates that slide in opposite directions, an elastic member coupled with the plate assembly, and electromagnets coupled with the plate assembly. One electromagnet may be energized to prevent movement of a first sliding plate while a second sliding plate may move responsive to a release cable being pulled. The second electromagnet may be energized to magnetically couple with and prevent movement of the second sliding plate once the second sliding plate reaches the second electromagnet. The elastic member may be stretched and store energy from the release cable being pulled while both the first and second electromagnets remain energized. The first electromagnet may be de-energized to permit movement of the first sliding plate and release the energy stored in the elastic member for opening a door of the vehicle.

The manual release mechanism described herein enables a passenger to attempt to manually open the door but delays opening until the vehicle is no longer moving. A motion transfer device moves to an unlocking position of the door lock only when the manual release mechanism is activated to release store energy in a mechanical energy storage device and an electromechanical device is de-energized to release the motion transfer device.

A self-aligning locking device for a vehicle sliding door assembly includes a sliding door threshold configured to be mounted on a door panel. The threshold is configured to slide along a sliding axis. The threshold includes a latch and a tongue at a car body-engaging end of the latch. The locking device also includes a groove block and a hook plate both configured to be coupled to the car body. Optionally, the locking device can include a switch sensor. The tongue of the threshold is configured to engage the groove to maintain alignment of the hook plate to mate with the latch to lock the threshold to the car body. The optional switch sensor can be configured to generate a signal indicating a locked state of the hook with the latch responsive to actuation of the switch sensor by the latch.

A retention mechanism for a pair of bi-parting doors of a transit vehicle includes a first track connected to a first door of the pair; a second track connected to a second door of the pair; a first retention assembly connected to the transit vehicle and configured to retain the first track in the closed position; a second retention assembly connected to the transit vehicle and configured to retain the second track in the closed position; a first engagement member connected to the second track, the first engagement member being configured to engage the first retention assembly to cause the first retention assembly to move to retain the first track in the closed position when the second track is in the closed position; and a second engagement member connected to the first track, the second engagement member being configured to engage the second retention assembly to cause the second retention assembly to move to retain the second track in the closed position when the first track is in the closed position.

An arrangement for a vehicle, in particular a rail vehicle, or for a building, has a control system adapted to control a plurality of different devices, a cabinet having a lock that can be locked in order to prevent access to a valuable device within the cabinet, and a control unit of the control system adapted to remotely control unlocking the lock. The control system is adapted to unlock the lock automatically if a predetermined condition is fulfilled or to unlock the lock on demand.

The plug door lock device is provided with a plurality of lock mechanisms, each of which has a motor for locking the door leaf. Each of the lock mechanisms has a lock arm capable of coming into engagement with an engaged portion fixed to the door leaf, a link member having one end-side portion coupled rotatably to the lock arm and a rotation preventing mechanism.

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 opening/closing device includes: an opening/closing bar attached to a door, which is actuated by a motor and is used for opening and closing the door; a door closing state detecting part configured to detect whether the door is in a closed state; a locking device configured to lock and unlock the door; a lock pin capable of being moved to a locked position or an unlocked position by the locking device; an engaging member attached to the opening/closing bar, which includes an engaging part configured to engage with the lock pin moved to the locked position; a first spring provided between the opening/closing bar and the engaging member; and a locking control unit configured to cause the locking device to lock the door when the closed state is detected by the door closing state detecting part.