EP1433686B1 - Roof raising device comprising a security for a double deck car trasporting wagon - Google Patents

Abstract

The roof lifting device has hydraulic pushrods (2) as lifting element, one pair (2.1, 2.2) at each end of the wagon. They are connected by turning arms (3) to a torsion bar (4) running crosswise. The turning arm has a connecting point for a hydraulic drive in the upper region between the application point of the pushrod and the torsion bar.

Description

The invention relates to a Dachhubeinrichtung with safety device for a Covered railway freight wagons, in particular double-decker car transporters, according to the preamble of claim 1.

For the safe transport of automobiles special railroad cars come in closed or "covered" training used over the front ends. and unloaded and having two superimposed loading levels and for liberal loading without stationary ramps with adjustable vehicle side Ramps are equipped for the upper loading level. The faces are closed with openable swing doors. In practice, a cart unit formed by at least two short-coupled car halves as a transport unit. At the coupling points, the cars are equipped with overrides. The Automobiles drive with their own engine power from a head ramp over the one Carriage half to the other car half and possibly to other, similar Dare. The individual car halves are in some types with bellows in Separation area provided.

In EP 0 463 505 B1 = DE 40 20 020 A1 is such a special railroad car described. For better loadability of the upper loading level and for better Venting the room of car exhaust are the individual car halves with a provided barrel-shaped lifting roof. These are four vertical in each car half Lifting cylinder on the vehicle floor near the side wall and near the vehicle part end arranged synchronously via piston rod extensions, which are attached to the lifting roof, raise the lifting roof and in its upper Bring end position. Both in the raised state and in the lowered State, the lifting roof is locked by means known per se. Detailiierte Information on the arrangement and design of the lifting cylinder and the arrangement a synchronization control are not made.

DE 41 40 347 C2 describes a double-decker car transport railway carriage in which the vehicle roof has a roof part at least at one end face, which is separated from the middle part of the car roof and independently height adjustable is trained. The lifting linkage is with a changeover device provided for different lifting heights. In addition, the Hubgestänge adjusting devices for the length adjustment of the lifting linkage. These Execution has the disadvantage of a relatively high cost in practice implementation and a complex operation, which is mostly manual. The DE 42 40 163 C2 includes a further development to DE 41 40 347 C2 with respect to Arrangement of the Hubantriebselements and limit switch stops for the desired Height end position of the vehicle roof. The Hubantriebselement in shape a spindle drive with spindle nut and electric motor is in the range of Underframe arranged centrally. This requires long rods that are expensive are and require a lot of maintenance.

The object of the invention is a Dachhubeinrichtung for a covered rail freight car, in particular double-decker car transport wagons, to find that a lifting and lowering of the roof in synchronism allows and at the same time a Securing the roof lifting device against unintentional or automatic opening guaranteed by force from driving while driving.

This object is achieved by a roof lift with the features of the claim 1 solved.

Advantageous embodiments and further developments of the subject matter of the invention are given in the subclaims 2 to 12.

The advantages of the solution according to the invention consist in a mechanical four-ram Dachhubeinrichtung with synchronization function and downstream safety device. The plungers are dimensioned so that they are lowered of the Hubdaches the mass forces from the railway enterprise, in the longitudinal direction of the Vehicle act on the lifting roof and in the raised state of the Hubdaches possible forces acting on the lifting roof, e.g. by wind, in all directions be able to record. When lowering the roof, it is possible gravity exploit. The structural arrangement of the safety device in conjunction with the lifting device requires only a relatively small volume of space.

Fig. 1

eine Draufsicht auf eine Eisenbahngüterwagen mit 2 Wageneinheiten;

Fig. 2

eine Seitenansicht im Überblick (Teilschnitt) mit geschlossenem Hubdach;

Fig. 3

eine Draufsicht im Überblick auf die gegenüberliegende Seite (Teilschnitt) mit geöffnetem Hubach;

Fig. 4

eine Draufsicht im Teilschnitt auf ein Stößelpaar mit querliegender Torsionswelle;

Fig. 5

eine Detailansicht des Betätigungsmechanismus im unteren Bereich, Endlage geschlossen;

Fig. 6

eine Detailansicht nach Fig. 5, Einleitung des Öffnungsvorganges und

Fig. 7

eine Detailansicht nach Fig. 5, Schließvorgang.

Reference to an embodiment of the invention will be explained in more detail. In the accompanying drawings show:

Fig. 1

a plan view of a rail freight car with 2 carriage units;

Fig. 2

a side view at a glance (partial section) with closed lifting roof;

Fig. 3

a top view at a glance on the opposite side (partial section) with Hubach open;

Fig. 4

a plan view in partial section of a pair of rods with transverse torsion;

Fig. 5

a detailed view of the actuating mechanism in the lower area, end position closed;

Fig. 6

a detailed view of FIG. 5, the initiation of the opening process and

Fig. 7

a detailed view of FIG. 5, closing.

The individual cars of the double-decker car transport railway carriage shown in the embodiment are designed as two-axle, the short couplings are connected to a carriage unit of two or more individual cars. If necessary, other similar or genus-like car units with the car unit formed coupled to a block train. The multipart railway carriage unit is on both ends with swing doors and ramps provided, wherein the ramp is designed to pivot to the upper loading level. in the In the area of the wagon separation, overflow flaps are arranged.

The areas of the short couplings are covered by telescopic bellows. For better loadability of the upper level and for better ventilation of car exhaust gases, the individual cars are equipped with lifting roofs 1. Because of the connection of the individual cars of the unit with bellows are the individual car provided with a synchronization device, the lifting and Lowering the lifting roofs 1 of the individual cars coupled in synchronism.

The drive of the lifting roof 1 is preferably carried out hydraulically by means of working cylinder 5. As can be seen in particular from Fig. 1, each lifting roof 1 in the area its four corners by four pestles 2, which allows for easy fitting during assembly can be made adjustable in length, raised or lowered, the individual tappet pairs 2.1 and 2.2 per end of the wagon to ensure synchronization with each other and for torque transmission via pivot arms. 3 connected to a transverse to the vehicle longitudinal direction torsion shaft 4 are, see Fig. 4.

The bearing point of the plunger 2 on the pivot arm 3 is located at the free end of the Swing arm 3. Between this bearing and the bearing with the torsion shaft 4, the swivel arm 3 in the upper longitudinal region a cam-shaped Part for the articulation of the working cylinder 5 and a cam 11, the in Active connection with a safety device is on.

Each pair of plungers 2.1 and 2.2 is supported by at least one hydraulic cylinder 5 driven. The housing of the hydraulic working cylinder 5 is above the carriage floor is movably mounted, while the cylinder rod in the vicinity the articulation point of the plunger 2 on the pivot arm 3 in the cam-shaped part the swing arm 3 is articulated movable. Here is the cylinder rod end 5.1 specially designed. In the articulation area, he has a slot 5.2 on and in Direction to the pawl 9 a cam 5.3. In the closed state of the lifting roof 1, the cylinder rod is extended.

The synchronization between the two pairs of rams 2.1 and 2.2 of a car and to the other car of the multipart transport unit is hydraulically controlled.

From FIGS. 2 to 4 it can be seen that the torsion shaft 4 in the underframe 13 of the Car is stored and attached plunger 2 in the side walls 6 are guided up to the lifting roof 1. The plunger 2 are in the exit area of the Side wall 6 guided so that a pair of plunger 2.1 the function of the longitudinal guide as a fixed bearing 7 takes over and the other pair of plugs 2.2 in the carriage longitudinal direction "floating" is stored in a movable bearing 8. This causes tolerance problems and extent controlled by heat. Also a possible Nonuniformity due to a hydraulic failure does not jam the Hubdaches 1. The bushings of the two bearings 7, 8 are executed crowned.

A specially designed, a working cylinder 5 per pair of plungers 2.1; 2.2 assigned Safety device in the form of a pawl 9 prevents the extension of the Hubdaches 1 due to possible external forces, such as suction, swinging movements, etc. ..

This safety device works as follows (see in particular Fig. 5):
The pivotally mounted in the base 13 about a pivot axis 9.2 pawl 9 forms in the upper part of a hook 9.1 which terminates at the top in an oblique back surface 9.4 and on one side has an undercut curved counter surface 9.3, in operative connection with the cam 5.3 of the cylinder rod head 5.1 stands. By a mounted in the base 13 tension spring 10, the pawl 9 is pulled into the locked position.
Act with lowered lifting roof 1 outside forces on the plunger 2 on the pivot arm 3, they want to raise the pivot arm 3 against the cylinder 5. In the case of leaks or pumping movements that would be possible without additional locking. The arranged on the pivot arm 3 cam 11, which is in operative connection with the pawl 9, but allows only a minimal and insignificant for the system lifting the working cylinder 5 by a gap a. The then acting on the pawl 9 force F1 causes a closing with the lever arm b moment.

The active opening of the lifting roof 1 is, as shown in FIGS. 5 and 6, by the working cylinder 5 introduced. The special design of the cylinder rod head 5.1 with slot 5.2 and cam 5.3 causes at the start of stroke, ie when retracting the cylinder rod of the working cylinder 5, after a starting distance c the cam 5.3 against the mating surface 9.3 of the pawl 9 lays and this pushes away, i. the pawl 9 rushes forward, so that after exhausting the game e in Slot 5.2 of the cam 11 out of the hook-shaped part of the pawl 9 can. The swing arm 3 moves with its free with the plunger. 2 connected end up and the lifting roof 1 opens.

When closing the lifting roof 1, see Figs. 7 and 5, the pivot arm moves 3 with its free end down. This can be done either by its own weight the lifting roof 1 or be initiated by the working cylinder 5. there hits the Noken 11 on the inclined back surface 9.4 of the pawl 9 and causes by the opening moment over the lever arm d the swinging back of the Pawl 9, so that the cam 5.3 of the Zugstangenkopfes 5.1 on the mating surface 9.3 can slide past in the area of the back surface 9.4. The hook 9.1 of Pawl 9 engages behind the cam 11 and the linkage is secured.

A roof lift indicator has at all four corners of a car, in the field of vision of the car Operators, a display 12 to display the current Hubdachposition open / closed on.

It is conceivable that this level of security may provide further security levels for others Functions, such as for the mechanical locking of the ramp, the forehead and Side doors and the drive-over flaps are connected downstream.

List of used reference numbers

1

Hubdach

2

tappet

2.1

pair of plungers

2.2

pair of plungers

3

swivel arm

4

torsion

5

working cylinder

5.1

Cylinder rod end

5.2

Long hole

5.3

cam

6

Side wall

7

fixed bearing

8th

movable bearing

9

pawl

9.1

hook

9.2

axis of rotation

9.3

counter surface

9.4

backrest

10

mainspring

11

cam

12

display

13

undercarriage

a

clearance

b

lever arm

c

Approach path

d

lever arm

e

game

F1

force

Claims (12)

1. Roof raising device with a security device for a covered railway goods wagon, in particular double deck car transporting wagon, with a fixed side walls (6), end walls which can be opened and closed, and a raisable roof (1) which is designed so that it can be raised and lowered by a raising element arranged in each corner region, characterised in that hydraulically actuated push rods (2) are provided as raising elements which, at each wagon end, form a pair (2.1; 2.2) of push rods which is connected to a torsion shaft (4) arranged transverse to the longitudinal direction of the wagon via a pivot arm (3) and in that the pivot arm (3), in its upper longitudinal region between the articulation points of the push rod (2) and the torsion shaft (4), has an articulation for a hydraulic drive and a cam (11) which is in operative connection with the security device in the form of a catch (9).
2. Roof raising device according to claim 1, characterised in that at least one working cylinder (5) is arranged to actuate each pair (2.1; 2.2) of push rods.
3. Roof raising device according to claim 1, characterised in that two working cylinders (5) are provided to actuate each pair (2.1; 2.2) of push rods, one working cylinder (5) being associated with each push rod (2).
4. Roof raising device according to claim (sic) any one of claims 1 to 3, characterised in that the working cylinder (5) has a cylinder rod head (5.1) which is provided, in the region of the articulation to the pivot arm (3), with a longitudinally extending slot (5.2) and, in the region of the security device, is provided with a cam (5.3).
5. Roof raising device according to any one of claims 1 to 4, characterised in that the push rods (2) are guided upwardly in the side walls (6) and are guided in the exit region of the side wall (6) in such a way that one pair (2.1) of push rods is mounted in a fixed bearing (7) and the other pair (2.2) of push rods is mounted in a loose bearing (8).
6. Roof raising device according to claim 1 or 5, characterised in that the connection point of the push rod (2) to the pivot arm 3 is located on the free end thereof.
7. Roof raising device according to claim 1, characterised in that the torsion shaft (4) is mounted in the chassis (13).
8. Roof raising device according to claim 1, characterised in that the security device is formed from a catch (9) which is pivotally mounted in the chassis (13) about a rotatable axis (9.2) and which is in operative connection in the upper region with the pivot arm (3) and, in the lateral region, with the working cylinder (5).
9. Roof raising device according to claim 1 or 8, characterised in that the catch (9), in the upper region, has a hook (9.1) ending towards the top in an oblique rear face (9.4) and having an undercut curve-shaped counter-face (9.3) towards the working cylinder (5).
10. Roof raising device according to claim 1, 8 or 9, characterised in that a tension spring (10) fastened in the chassis (13) engages on the catch (9).
11. Roof raising device according to claim 1, characterised in that a display (12) to display the current raisable roof position (opened/closed) is arranged at all four corners of the wagon.
12. Roof raising device according to claim 11, characterised in that the display (12) is fastened on the torsion shaft (4).

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