A door system has a door leaf configured to be moved between closed and opened positions while carrying out a door leaf movement. The door leaf is moved in the vehicle transverse direction across a door leaf movement distance in the vehicle transverse direction, a door seal, disposed underneath a lower edge of the door leaf closing off the door leaf towards the bottom, and extends along the lower edge. The door seal is arranged such that the door seal, when the door leaf movement is carried out, undergoes a door seal movement and is moved in the process in the vehicle transverse direction across a door seal movement distance in the vehicle transverse direction. An arrangement of the door leaf and door seal that ensures that the door seal movement distance in the vehicle transverse direction is smaller than the door leaf movement distance in the vehicle transverse direction.

Provided is a small plug door device having a slide base is installed slidably in a vehicle width direction relative to a fixed base. A door drive mechanism for moving one door in a vehicle front-rear direction via a connecting portion has a drive portion including an electric motor, a drive wheel member, a follower wheel member, and an endless member, and is installed on the slide base. A guide portion guides a shaft portion provided on the connecting portion so as to move the shaft portion in a vehicle width direction. In a double-speed rail in which a pinion is disposed between two racks, one rack is connected to the slide base, the other rack is connected to the door side, and the pinion is connected to the connecting portion.

A system for opening and closing a sliding vehicle door includes a vehicle door that engages with the body in the closed position. A longitudinal track is fixedly mounted to an interior of the vehicle door. A hinged bracket is fixedly mounted to the vehicle body adjacent an opening defined by the vehicle body. The hinged bracket has a laterally compressed shape when the door is closed, and expands laterally outward when the door is opened. The door and the track fixed thereto slide longitudinally along the opened hinged bracket when the door is opened. The interface between the hinged bracket and the track remains at the same generally location relative to the vehicle body, and shifts relative to the vehicle door when the door is opened.

An operating mechanism for plug-type rail car doors includes first and second links connected to respective rotatable first support bars of the door. The links include respective elongated slots at least partially overlapping with one another, wherein each slot receives a respective cam. The cams are rotatable together about a rotational axis which is eccentrically arranged relative to both cams. An actuating lever is connected to the cams to enable an operator to rotate the cams about the rotational axis. The actuating lever is movable such that the first and second links are retracted relative to one another to simultaneously rotate the first and second support bars, and such that the first and second links are extended relative to one another to simultaneously counter-rotate the first and second support bars. A gear train may be provided between the actuating lever and the cams to reduce the necessary manual operating torque.

According to some embodiments, a discharge door locking system for a railcar discharge door comprises a lock piston configured to move between a first position (not engaged with an operating beam coupled to a discharge door) and a second position (engaged). The locking system comprises a first and second input. Activation of the first input moves the lock piston to the first position, and activation of the second input moves the lock piston to the second position. The first input of the locking system is coupled to a first input of an operating cylinder coupled to the operating beam. The first input of the operating cylinder is configured to move the discharge door to the open position.

A vehicle door actuator assembly includes a base plate having a first portion and a second portion, a first gear disposed proximate the first portion of the base plate, a second gear disposed proximate the second portion of the base plate, a third gear connected to the base plate, and a linkage engaging the first, second, and third gears. The base plate of the vehicle door actuator assembly is rotatable between a first position and a second position. As the base plate rotates between the first and second positions, the vehicle door actuator assembly maintains an outer surface of the vehicle door substantially parallel to a longitudinal axis of the vehicle at all points along a travel path of the vehicle door.

The invention relates to a hatch operating mechanism arranged to control opening and closing movements of a hatch (202; 302; 402) covering an opening in a vehicle. The mechanism comprises a first and a second arm (211, 221; 311, 321; 411, 421), which are rotatably attached to the vehicle at a first end and rotatably attached onto the hatch at a second end. A first and a second connecting element (214, 224; 314, 324; 414, 424) are arranged extending between and displaceable relative to a pair of spaced apart, parallel guide means (216, 226, 217, 227; 316, 317; 416, 417) fixed to the hatch (202; 302; 402), wherein the second ends of the first and second arms (211, 221; 311, 321; 411, 421) are rotatably attached to a respective first and second connecting element (214, 224; 314, 324; 414, 424). The first and second arms (211, 221; 311, 321; 411, 421) are simultaneously rotatable in opposite directions about their first ends over an arcuate path; and the connecting elements (214, 224; 314, 324; 414, 424) are arranged to execute a reciprocating movement along the guide means (216, 226; 217, 227) during the rotation of the first and second arms over the arcuate path.

Disclosed is a radiation protection screen for protecting an operator from ionizing radiation, which screen includes a front partition structure that is made of one or more radiation protection materials and a side partition structure that is made of one or more radiation protection materials, the partitions being joined together at a vertical or substantially vertical corner border, and which screen includes feet that are equipped with wheels that rest on the ground. Furthermore, according to the invention, this screen is arranged such that the front partition structure includes a lower portion and an upper portion that may be moved with respect to each other, the upper portion of the front partition structure being mounted so as to be able to pivot in the region of the corner border, about a vertical or substantially vertical pivoting axis.

According to some embodiments, a discharge door locking system for a railcar discharge door comprises a lock piston configured to move between a first position (not engaged with an operating beam coupled to a discharge door) and a second position (engaged). The locking system comprises a first and second input. Activation of the first input moves the lock piston to the first position, and activation of the second input moves the lock piston to the second position. The first input of the locking system is coupled to a first input of an operating cylinder coupled to the operating beam. The first input of the operating cylinder is configured to move the discharge door to the open position.

A vehicle door actuator assembly includes a base plate having a first portion and a second portion, a first gear disposed proximate the first portion of the base plate, a second gear disposed proximate the second portion of the base plate, a third gear connected to the base plate, and a linkage engaging the first, second, and third gears. The base plate of the vehicle door actuator assembly is rotatable between a first position and a second position. As the base plate rotates between the first and second positions, the vehicle door actuator assembly maintains an outer surface of the vehicle door substantially parallel to a longitudinal axis of the vehicle at all points along a travel path of the vehicle door.