A pivot sliding door guiding device includes a longitudinal profile with a guiding track and slider, supported on support rollers in a linearly movable manner in the guiding track, and which is connected to a door leaf and transfers a bearing load onto the slider. In the guiding track, convex bearing members extending in the longitudinal direction are disposed, on which support rollers of the slider with, in each case, peripherally extending concave guiding grooves roll and are retained in the transverse direction. The door leaf is connected to the slider whereby a center of gravity acts off-center on the slider in running and transverse directions. The slider has support rollers which serve for the load transfer of the load acting from the door leaf on the slider. The rollers roll on upper and lower convex bearing members, and transfer load of the door leaf via the convex bearing members.

A diagnosing device identifies a plugging operation period in which a plug door performs a plugging operation, the plug door having a guide roller attached thereto, the plug door being configured to perform an opening-closing operation and the plugging operation by allowing the guide roller to move along a guide rail; obtains drive information including a value representing at least one of a current value or a torque value of a drive unit, the drive unit being configured to drive the plug door; and diagnoses an abnormality in the guide roller or the guide rail based on the drive information observed during the identified plugging operation period.

A sliding door system includes a support guidance for suspending a door leaf with respect to a framework. A steering track is fixed to the framework and an engaging front lever is mounted at a front edge of the door leaf. The support guidance is arranged independent from a steer guidance which provides a design freedom in which a rigidity of the support guidance can be increased independent from the steer guidance. The steer guidance can be designed with a compact configuration. A mechanical chain of connections of the door leaf to the swing shaft can be made more robust by adapting at least one of a slide bar, a sliding carriage and a swing arm, such that a substantial support of the door leaf is provided by this mechanical chain of connections.

A hatch operating mechanism is arranged to control opening and closing movements of a hatch covering an opening in a vehicle. The mechanism comprises a first arm and a second arm each having a first end and a second end, wherein each arm is rotatably attached to the vehicle at the first end and rotatably attached to the hatch at the second end. First and second connecting elements extend between and are displaceable relative to a pair of spaced apart, parallel guides fixed to the hatch, wherein the second ends of the arms are rotatably attached to the respective connecting elements. The first arm rotates in a first direction over a first arcuate path, and the second arm simultaneously rotates in an opposing second direction over a second arcuate path; and the first and second connecting elements are configured for reciprocating movement along the guides during rotation of the arms.

A sliding door system includes a support guidance for suspending a door leaf with respect to a framework. A steering track is fixed to the framework and an engaging front lever is mounted at a front edge of the door leaf. The support guidance is arranged independent from a steer guidance which provides a design freedom in which a rigidity of the support guidance can be increased independent from the steer guidance. The steer guidance can be designed with a compact configuration. A mechanical chain of connections of the door leaf to the swing shaft can be made more robust by adapting at least one of a slide bar, a sliding carriage and a swing arm, such that a substantial support of the door leaf is provided by this mechanical chain of connections.

A door system for a vehicle, such as a rail vehicle, includes a door leaf movable from a closed state to an open state and vice versa. The door system includes a longitudinal beam extending along a longitudinal vehicle axis (X) and having a longitudinal guide in which the door leaf is movably guided; a transverse beam arranged firmly on the vehicle, which extends along a transverse vehicle axis (Y) substantially perpendicularly to the longitudinal beam, wherein the longitudinal beam is movably guided via a guiding device in a transverse guide of the transverse beam; and a locking device configured for blocking a relative displacement between the longitudinal and transverse beams in a locking position and for enabling a displacement of the longitudinal beam relative to the transverse beam in an open position. A door system of this type is more cost-effective and meets higher security standards during locking.