A sleeper train carriage and a sleeper train, a compartment (100) and an aisle (101) is provided within the sleeper train carriage, and a partition wall is provided between the compartment (100) and the aisle (101). The partition wall includes a compartment-side partition wall (1) and an aisle-side partition wall (2). The aisle-side partition wall (2) includes a fixed plate (21) and a movable plate (22) which are arranged in a vertical direction, the movable plate (22) is located above the fixed plate (21), an upper end of the movable plate (22) is fixedly connected to one end of a top plate of the aisle (3), the other end of the top plate of the aisle (3) is detachably connected to the side wall (4) of the train body, and a lower end of the movable plate (22) is hinged to the train body.

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.

The door device is provided with an opening frame defining an opening and a door for operating between a first door position and a second door position, the door making contact with the opening frame when at the first door position, the door being separated from the opening frame when at the second door position. A movable receiving portion constituted by at least part of the opening frame operates so that the opening is larger when the door is at the second door position than when the door is at the first door position.

A sleeper train carriage and a sleeper train, a compartment (100) and an aisle (101) is provided within the sleeper train carriage, and a partition wall is provided between the compartment (100) and the aisle (101). The partition wall includes a compartment-side partition wall (1) and an aisle-side partition wall (2). The aisle-side partition wall (2) includes a fixed plate (21) and a movable plate (22) which are arranged in a vertical direction, the movable plate (22) is located above the fixed plate (21), an upper end of the movable plate (22) is fixedly connected to one end of a top plate of the aisle (3), the other end of the top plate of the aisle (3) is detachably connected to the side wall (4) of the train body, and a lower end of the movable plate (22) is hinged to the train body.

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.

The door device is provided with an opening frame defining an opening and a door for operating between a first door position and a second door position, the door making contact with the opening frame when at the first door position, the door being separated from the opening frame when at the second door position. A movable receiving portion constituted by at least part of the opening frame operates so that the opening is larger when the door is at the second door position than when the door is at the first door position.

The system and method of the present invention enables the harmonisation of the operating status of pairs of train and platform doors, enables both doors to be actuated simultaneously or be disabled or isolated if one of them has been disabled or isolated by means of door isolating means and also enables the harmonisation of the opening actuation of the pair of doors by the user using door-opening request devices.

Provided are a railroad vehicle that makes it possible to maintain the air tightness of a door and a plug door for a railroad vehicle. A second rail is provided parallel to a first rail in the longitudinal direction of a vehicle body above the leading edge side (door side) of a plug rail. The second rail supports the leading edge side of the plug rail. As a result, both edges of the plug rail are supported by the first rail and the second rail. Dangling of the leading edge side of the plug rail is thus prevented even when the plug distance (the distance that the door moves in the vehicle body width direction) is long. In this way, it is possible to block the doorway without leaving a gap using the door and to maintain the air tightness of the door.