Post mr-a / 26
|Post mr-a / 26|
Two rail mail cars of the type mr-a
|Year of construction (s):||1954-1988|
|Axis formula :||B'B '|
|Gauge :||1435 mm ( standard gauge )|
|Length over buffers:||26,400 mm|
|Trunnion Distance:||19,000 mm|
|Bogie axle base:||2,500 mm|
|Empty mass:||35.6 tons|
|Service mass:||39.1 tons|
|Top speed:||140 km / h|
|Wheel diameter:||950 mm|
|Train heating:||Nuhz, ElHz (but currently only as a through line), Ohz|
|Floor height:||1,251 mm|
Structural components of the car body
From the outside, the rail mail car consists of the carriage and the car body, which in turn is composed of the underframe, the front and side walls and the car roof. From the 1967 series, the head section at both ends of the underframe was prepared for the later installation of a central buffer coupling and for the resulting central introduction of the pressure forces.
In accordance with the lightweight steel construction, the entire car body is designed in a shell construction, with the pillars of the box frame, the side wall sheet metal and the roof being firmly connected to one another and forming a load-bearing unit together with the undercarriage.
The interior of the car is lined with wood or plastic panels. The floor in the letter and bagging area consists of 10 mm thick plywood panels, in the packing area it is made of very resistant 25 mm thick pitch pin boards. The accessible floor areas in the letter and bagging room are covered with 15 mm thick fur felt and 3.2 mm thick linoleum in order to create a vibration-free standing area for the drivers.
The car has six loading doors and two boarding doors on the outer walls, all of which are made of light metal and are designed as sliding doors with inside door pockets. The pair of loading doors between the bagging area and the packing area has two wings with a clear passage of 2000 mm, because the bulk of the shipments are loaded and unloaded at these doors. The remaining doors are in one piece. The door halves of the two-part sliding doors can optionally also be opened individually. All loading door locks can be locked from the inside using a rotating wing. A door overlay is used as a second safeguard, which is designed in such a way that incorrect locking, which could cause the railroad mail driver to be locked out, is avoided.
All sliding loading doors are secured against rolling close in the event of buffer impacts by a braking device in such a way that a clear door opening of 300 mm is maintained in order to prevent accidents from crushing body parts. By pressing the lock handle in the closing direction, the braking device is disengaged and the door can be closed. The entrance doors in the anteroom are protected by an electrical alarm system against unnoticed opening by unauthorized persons. Both ends of the wagon are equipped with a transition device so that the neighboring rail mail car can also be reached while the car is in motion, if the car is running in a mail train or a second rail mail car is used in a passenger train.
The windows in the letter room and one window in the outgoing room are designed as translation windows. The upper halves of these windows can be locked in four opening positions. In the closed position, the window locks secure the window against opening from the outside. The windows in the four middle loading doors adjacent to the drainage area are designed as "emergency exits". If the doors cannot be opened in a serious train accident, you can cut the rubber window holder with a tear wire and then throw the divided inner window frame including the pane outwards. This creates a large exit opening through which injured people can be rescued quickly.
In a Bahnpostwagen the genus a one letter space, a Aussackraum and a packaging space are accommodated as working spaces. The necessary facilities for the personal needs of the carriage crew, wardrobe, washing facilities and a train toilet are located in the vestibule at the end of the carriage of the letter room, also known as the handbrake end, because it contains the handwheel for operating the handbrake. In the letter room, there are work tables (750 mm deep, 833 mm above the floor) on the side walls and on the front wall and letter distribution frames with six or seven rows of compartments on top of each other. In the upper rows of compartments, which are above eye level, the floors consist of strong clear glass panels so that it is easier to check that the compartments are completely empty. A swiveling framework is attached to the left of the front wall framework, which can be fixed at any angle. This means that the passage to the anteroom remains freely passable. In the frameworks on the side walls, a letterbox is inserted on each side, which can be loaded from the outside through a slot with a closure flap. At the front of the sorting tables, letter tray boxes can be hung anywhere, in which letters that have not yet been distributed are within reach. In the type ap rail mail cars , the letter frames are foldable.
Below the table at the verification point is the letter tray cabinet with compartments for storing six wire mesh letter trays. By inserting or hanging loose distribution frameworks and one-piece bag clamps in front of certain windows as well as by using folding tables in front of the loading doors, additional work opportunities can be created in the mail room.
- Manual dictionary of the postal system ; 3. Edition
- Four-axle rail mail car Post mr-a / 26 (taken over from the Museum for Communication Nuremberg , 2002)
- Bpw of the genus 4mg-bI / 26 (later Post mr-a / 26) Ulmer Eisenbahnfreunde e. V.
- dictionary of the postal system; P. 186
- Manual dictionary of the postal system; P. 187