HK1069802A - Two level coach as a railway vehicle - Google Patents

Description

The invention relates to a two-level railway carriage and more particularly to a carriage with a cabin with an intermediate floor separating a lower and an upper floor.

A two-level railway carriage with a box with an intermediate floor comprising a flat bottom and incorporating two boxes at the top of the box, which extend sideways along the edge of the box, the two boxes being separated by a space forming a traffic corridor and having an upper plane for seating, is known from document US 2 633 090.Finally, such a car has the disadvantage of having a limited ceiling height in the traffic corridors of the lower and upper levels, since the overall height of the car is limited by the gauge that the rail vehicle must meet in order to be able to run in railway tunnels.

The purpose of the present invention is to provide a two-level railway carriage with a simple and economical structure to be constructed and assembled, which allows for an optimum connection between the middle floor and the access stairs, while providing an optimum height below the ceiling in the traffic corridors of the two carriage levels.

For this purpose, the invention concerns a two-level railway carriage with a box with an intermediate floor separating a lower and an upper floor, characterised by the fact that the intermediate floor is a floor consisting of a lower and an upper plane vertically offset from each other and connected by a connecting piece, the lower and upper planes extending longitudinally to the box and each having a lateral edge connected to a lateral wall of the box and the fact that the lower plane is connected to a staircase by at least one narrow end, a platform supporting the outer seats being in the longitudinal ratio of the lower and lower seats and the length of the seat having a width and a width corresponding to the length of the seats, and a loweredge having a vertical interchangeable surface between the lower and lower seats.

Depending on the particular embodiments, the two-level car of the invention may have one or more of the following characteristics taken individually or in all the combinations technically possible: the lower and upper planes of the intermediate floor shall extend longitudinally over the same length;the platform shall have an upper face arranged at the same height as the upper plane of the intermediate floor;seats shall be fixed directly on the upper plane of the intermediate floor and seats of identical structure shall be fixed parallel to the platform;at the lower level of the floor, at least one row of seats shall be provided along the side wall of the cabin adjacent to the upper plane of the intermediate floor and a traffic corridor shall be provided in the upper zone below the upper plane of the intermediate floor whose width is equal to the width of the upper plane of the intermediate floor;the lower level of the upper floor shall be accessible by two longitudinal and a wide staircases from the upper level of the upper floor;the lower level of the upper floor shall be accessible by two straight staircases, one of which shall be connected to the upper level of the upper floor by a straight and one of which shall be at the lower level of the upper floor;the lower level shall be accessible by two straight and one wide staircases;the lower level of the upper level shall be accessible from the lower level of the upper floor;the lower level of the upper level of the upper floor shall be accessible by two straight and one straight staircases, connected to the upper level of the upper level of the upper floor;the lower level of the upper level of the upper level shall be connected to the upper level of the upper level of the upper floor;the lower level of the upper level of the upper level of the carriage;the upper level shall be connected by two straight and one straight staircases, and one of the lower level of the lower level of the lower level;the lower level shall be connected to the upper level of the upper level of the upper level;the upper level of the lower level;the lower level of the upper level shall be connected to the lower level;the upper level of the lower level of the lower level;the upper level of the lower level of the upper level shall be connected to the lower level;the upper level;the upper level of the lower level of the lower level;the lower levelAnd they were set up, one by one, on the side of the ark.

The purposes, aspects and advantages of the present invention will be better understood from the description given below of a particular embodiment of the invention and a variant, presented as a non-limiting example, by reference to the attached drawings, in which: Figure 1 is a general side view of a two-level car according to a particular embodiment of the invention; Figure 2 is a view, in partially torn perspective, of a section of the car from Figure 1; Figure 3 is a cut-out view of the upper stage of the car according to lines III-III of Figure 1; Figure 4 is a cut-out view of the lower stage of the car according to lines IV-IV of Figure 1; Figure 5 is a cross section according to the V-V line of the car from Figure 3; Figure 6 is similar to Figure 5 illustrating a variant of the two-level car according to the invention.

To facilitate the reading of the drawing, only the elements necessary for the understanding of the invention have been represented.

Figure 1 shows an overview of a two-level railway carriage according to the invention. The carriage has a box 1 resting on two bogies 2 and having an access door 3 near each of its longitudinal ends which is located at the level of a boarding platform when the carriage is stopped at a passenger station. The carriage has, in the extension of each door 3, a bearing 4 from which a stairway 5 to an upper floor B and a stairway 6 to a lower floor A are accessed.

The lower level A is a 7-level floor and is separated from the upper level B by a self-supporting intermediate level 10 arranged at a considerable height halfway up from the first floor. The middle level 10 is the ceiling of the lower level A and extends laterally over the entire width of the first floor and longitudinally between the stairs 5 arranged at both ends of the first floor.

Figure 2 is a perspective view, partially torn, of a section of the car on which equipment such as seats, partitions or sliding doors have not been depicted for clarity. According to this figure, the self-supporting middle floor 10 consists of two planes, lower 10a and upper 10b, vertically offset from each other and connected by a vertically extending junction 10c, all of these intermediate floor structure elements being adjacently made of welded sheets. The two lower planes 10a and 10b lie on an equal length, having an intersection of the upper plane 7a and the upper plane 10b, and each has a longitudinal junction with a caisson, such that the middle plane 10a and 10a are connected by a longitudinal junction, with the upper plane 10a and 10b being connected by an intersection of the upper plane 10a.

Stairs 5 and 6 run in a straight line along the side wall of box 1 and each stairway 5 is connected by its upper end directly to the edge of the lower 10a of the middle floor 10. The width of stairs 5 and 6 is advantageously less than the width of the lower 10a so that a space between stairs 5 and 6 is created to accommodate, for example, a technical room 15 shown in mixed line in Figure 2.

In accordance with Figures 2 and 3, a platform 11 in the shape of a rectangular parallelepiped is reported on the lower plane 10a, this platform 11 extending longitudinally along the side wall of the box 1. Platform 11 is less wide than the lower plane 10a so that a traffic corridor 12 results between platform 11 and junction 10c of the middle floor 10. In order to preserve an exchange surface 12a between the longitudinal ends of platform 11 and stairs 5, platform 11 is arranged longitudinally on the lower plane 10a and has a lower height than the lower plane 10a. The upper plane of platform 11 is arranged so that its plane is the same height as the plane 10a.

The volume of the upper level B may be closed at each of the longitudinal ends of the middle level 10 by a partition 13, shown only in Figure 3, as partition 13 has a sliding door 14 facing stairway 5.

In accordance with Figures 3 and 5, the upper plane 10b of the intermediate floor 10 receives two rows of seats 8 arranged parallel to the longitudinal axis of the cab 1, these seats 8 being fixed directly to the intermediate floor 10 e.g. by means of fastening screws.

In accordance with Figures 4 and 5, floor 7 of lower level A receives, in the area below the lower level 10a of the middle level, two rows of seats 8 arranged parallel to the longitudinal axis of the cab 1, these 8 seats being directly fixed to floor 7. In addition to these two rows of seats 8 located below the lower level 10a, floor 7 also receives a third row of seats 8 arranged along the side wall of cab 1, in the area below the upper level 10b of the middle level 10. This high row of seats 8 is separated from the previous two rows by a third space defining a good passageway under the 7a, extending above the 10b floor and thus providing a floor.

The volume of the lower level A may be closed at both longitudinal ends by a partition 13, shown only in Figure 4, with a sliding door 14 facing stairway 6.

The advantage of such a two-level car is that it has a self-supporting middle floor consisting of only two planes connected by a junction piece which is simple to make and assemble on the car body. In addition, the use of such a two-plane floor that is offset allows for optimum ceiling height at the level of the traffic corridors of the upper and lower floors. The use of a retractable platform allows for a cheaper arrangement of the upper floor by having a row of seats, identical to those of the other rows of seats equipping the car, along the side wall of the car body while preserving a whole traffic corridor for passengers.

Figure 6 illustrates, as an example, a variant of the two-level car according to the invention. This variant differs from the previously described mode of construction in that the middle floor 10 has an upper plane 10b which is less wide than the lower plane 10a, with the junction 10c then being laterally offset from the longitudinal axis of the body 1.In accordance with Figure 5, at the level of the upper floor B, top plan 10b and platform 11 each have two rows of seats 18 seated together, arranged parallel to the longitudinal axis of the cab 1. At lower floor A, three rows of seats 18 seated together are arranged on floor 7 in the area arranged under the bottom plan 10a of the middle floor 10 and a fourth row of seats 18 is arranged under top plan 10b along the side wall of the cab 1. A circulation corridor 7a of about 70 cm width is provided between the fourth row of seats 18 and the three rows of seats 18 seated together,in the area below the upper plane 10b, thus providing a good ceiling height.

This variation of design allows for a different arrangement of the seats in lower A and upper B floors, adapted in particular to accommodate four seats on the width of the cabin.

The present invention is not, of course, limited to the methods of implementation described and illustrated, which have been given only as an example. Modifications are possible, in particular in terms of the composition of the various elements or by substitution of technical equivalents, but without leaving the scope of the invention. For example, in another variant of the invention not represented the width of the lower plane may also be less than the width of the upper plane so as to arrange, at the level of the upper floor, three rows of seats on one side of the car plus one row of seats on the other side with a passageway between them and, at the level of the lower floor, two rows of seats separated by two passages.

Claims (9)

1. Two-level railway vehicle with a box (1) with an intermediate floor (10) separating a lower floor (A) from an upper floor (B), characterised by the fact that the intermediate floor (10) is a floor consisting of a lower plane (10a) and an upper plane (10b) vertically offset from each other and connected by a junction (10c), the lower and upper planes (10a) each extending longitudinally to the box (1) and having a lateral edge connected to a lateral wall of the above-mentioned box (1) and the lower plane (10a) being connected to the outer one (5) by one of its longitudinal edges, supporting a longitudinal edge (11a) and a longitudinal edge (11a) on the lower plane (10a) and a longitudinal edge (11a) on the outer edge of the stairway (10a) and a longitudinal edge (11a) on the lower plane (10a) and a longitudinal edge (11a) on the outer edge of the stairway (10a) and a longitudinal edge (11a) on the lower plane (10a) and a longitudinal edge (11a) on the lower edge of the stairway (10a) and a longitudinal edge (11a) on the outer edge of the stairway (10a) and a longitudinal edge of the lower level (10a) on the lower level.
2. Two-level vehicle according to claim 1, characterised by the lower (10a) and upper (10b) planes extending longitudinally over the same length.
3. Two-level vehicle according to any of claims 1 to 2, characterised by the platform (11) having an upper face at the same height as the top plane (10b).
4. Two-level vehicle according to any of claims 1 to 3, characterised by seats (8) being fixed directly on the upper plane (10a) of the intermediate floor (10) and seats (8) of identical structure being fixed parallel to the platform (11).
5. Two-level vehicle according to any of claims 1 to 4, characterised by the fact that at the lower level (A), at least one row of seats (8, 18) is provided along the side wall of the cab (1) adjacent to the upper plane (10b) and that a traffic corridor (7a) is also provided in the area below the upper plane (10a).
6. Two-level vehicle according to any of claims 1 to 5, characterised by the width of the lower plane (10a) being equal to the width of the upper plane (10b).
7. Two-level vehicle according to any of claims 1 to 5, characterised by the width of the lower plane (10a) being greater than the width of the upper plane (10b) and the width of the platform (11) being equal to the width of the upper plane (10b).
8. Two-level vehicle according to any of claims 1 to 7, characterised by the two longitudinal ends of the lower plane (10a) being connected by an access stairway (5) extending straight along the side wall of the body (1).
9. Two-level vehicle according to any of claims 1 to 8, characterised by a step (4) from which the upper floor stairway (5) (B) and the lower floor stairway (6) (A) start, each of these steps (5, 6) being arranged along a side wall of the cab (1).