EP2325066B1

EP2325066B1 - Mechanism for locking the sidewall of a railway freight wagon

Info

Publication number: EP2325066B1
Application number: EP10192399.3A
Authority: EP
Inventors: Jirí Hlinka; Ján Macejko
Original assignee: Tatravagonka AS
Current assignee: Tatravagonka AS
Priority date: 2009-11-24
Filing date: 2010-11-24
Publication date: 2021-01-27
Anticipated expiration: 2030-11-24
Also published as: EP2325066A2; EP2325066A3; PL2325066T3

Description

Field of technology

The invention relates to covered freight railway wagons with sliding sidewalls.

Actual state of technology

There are known freight railway wagons with sliding walls from various manufacturers. These wagons have two firm front walls placed at the wagon ends; in the central wagon part, there is a firm central portal; in the upper part, there is a firm roof beam, and four sliding sidewalls that can be individually controlled and which are parallel with longitudinal wagon axis, from which two oppositely arranged sidewalls can be opened and moved alongside the closed sidewall, adjacent to it, in the longitudinal direction. These sidewalls are guided in a guiding device, upper part of which is arranged in the area of the roof beam and lower part under the wagon floor level. Generally, they can be moved from closed transportation position to opened position, and vice versa, by means of firm rail. Before that, the sidewall moves onto this rail by means of rotating shaft operated by operating element placed on the firm front.
Sidewalls are secured against springing out of this rail in the longitudinal and in the transverse direction.
Despite this securing, the sliding aluminium walls show inadmissible cross clearance after closing. This causes problems with transported materials because of dustiness, water leakage due to rain or snow.
Manufacturers try to solve this problem by various methods, which aim is to stabilize position of the sidewalls in the transverse direction. Generally, it means addition of another securing element. Securing element can be created in the form of pin on the sidewall, which fits into the firm seat on the wagon frame after the sidewall is closed. Another securing element can be in the form of cog that is firmly placed on the rotating shaft. After the sidewall is closed, this cog presses the sidewall to the wagon frame. Not every securing element is suitable for all covered freight railway wagons with sliding sidewalls.
Utility design DE 7740233 U1 solves the problem of inadmissible cross clearance of the wagon type Habbiins, which, for control of the locking, uses rotating shaft (rotating shaft is known in the wagons Habbiins and it is commonly used) in the way that:

Movement of the sidewall during locking/unlocking is rectilinear in the horizontal plane from/towards the wagon longitudinal axis, in comparison with known and commonly used movement of the sidewall on the curved line
Movement of the lock shoe during locking/unlocking is also rectilinear in the horizontal plane from/towards the wagon longitudinal axis

The same problem solves also WO 03/013934 A1 , according to which, there is used, for lock operation, a rotating shaft; transfer of control fore to the locking catch is performed by means of draw-bar and the locking catch is fulcrumed on the pin firmly connected to the chassis frame rib. For adjustment of mechanism, there is used a longitudinally adjustable draw-bar. The sidewall holder is equipped with an opening. During locking, a locking catch pin fits into this opening. This locking catch secures the sidewall holder from below.
The invention addresses this problem, i.e. inadmissible cross clearance of the sidewalls closing.

Nature of invention

The problems addressed in the preceding paragraphs are solved by a locking mechanism having the features of claim 1.
The mechanism can be manufactured from any suitable material regarding strength. Mechanism does not require any additional activities, nor does it complicate operation of mechanism of opening and closing of the sidewall.
Method of sidewall closing is different as in the other known mechanisms. New mechanism for securing of the sidewall of the freight railway wagons type Habbiins differs from the known methods mainly in the way that:

for adjustment of the mechanism, there is used a socket adjustably fulcrumed on the shaft
the sidewall holder is equipped with a lock pin that holds the hook of the locking catch
the locking catch can be created to secure from above, or to secure from below

Review of pictures in the drawings

The Figures shows securing of the sidewall from above. The Figure No. 1, there is showed locked sidewall with marked position of individual parts of the mechanism, in the Figure No. 2, there is unlocked sidewall, in the Figure No. 3, there is a detail of locking catch, Figure No. 4 - detail of lever and in the Figure No. 5, there is a detail of the draw-bar.

Examples of embodiments

Example 1

The mechanism for securing the sidewall of the freight railway wagon from below (variant no. 1) was used in the wagon type Habbiins and Habbiillns (bogie four-axle wagon without partition walls and with partition walls).
The mechanism for securing of the sidewall consists of a locking catch 1 (Figure No. 3) and a lever 2 (Figure No. 4) with a socket 3, whereby 1 and 2 are connected by means of a draw-bar 4 (Figure No. 5). The lever 2 is through the socket 3 adjustably connected with a rotating shaft 6 and the locking catch 1 fits from above into the opening of a holder 5 firmly connected with the sidewall and it traps a holder pin 5. During closing of the sidewall with the holder 5 , and by that also during rotating of the shaft 6, there occurs, through the lever 2 and draw-bar 4, rotation of the locking catch 1 , which fits from above into the opening of the holder 5 and fixes pin of the holder 5 , and by that also the sidewall against the wagon frame. Thereby, the sliding wall will be automatically locked.
The mechanism can be adjusted by simple releasing of bolts of the socket 3 , by its rotating with the lever 2 by corresponding angle around the axis of the rotating shaft 6 and by tightening of the bolts of the socket 3. By this method, the correct functionality of the mechanism for securing of the sidewall from above is provided, and by that, there is provided also stability of the sliding sidewall during running of the wagon.
This mechanism is installed alongside the railway wagon repetitively.

Example 2

The mechanism for securing the sidewall of the freight railway wagon from above according to the variant no. 1 can be used in the wagon type Hbbins, two-axle wagon without partition walls nr in the wagon type Hbbillns two-axle wagon with partition walls, with the same method of securing the sidewall towards the cross clearance It does not fall under the scope of claim 1.

Industrial applicability

The mentioned mechanism can be used in various types of covered freight railway wagons with sliding sidewalls, among which belongs bogie four-axle wagon without partition walls (Habbiins), bogie four-axle wagon with partition walls (Habiillns), bogie two-axle wagon without partition walls (Hbbins), two-axle wagon with partition walls (Hbbillns), and in principle, it is possible to secure any sliding sidewall that uses for opening a rotating shaft.

List of related marks

1: locking catch
1.1: hook
1.2: cut-out
2: lever
3: socket
4: draw-bar
5: sidewall holder
6: rotating shaft
8: spike on the locking catch
9: spike on the draw-bar
10: tightening bolts
11: bore in the lever
12: bore in the socket

Claims

Locking mechanism for a sidewall of a freight railway wagon, comprising:
a rotating shaft (6) designed to be arranged in the lower part of the wagon and under/along the level of the loading surface of the wagon,

a socket (3) partly encircling the rotating shaft (6) and adjustably connected with it,

a lever (2) arranged under the rotating shaft (6) and directly connected with the socket (3),

a draw-bar (4) connected with the lever (2) via a spike (9) located on the lower part of the draw-bar and inserted into the circular hole of the lever (2),

a locking catch (1) connected with the draw-bar (4) via a spike (8) located on the middle part of the locking catch (1) and inserted into the circular hole of the draw-bar (4),

a side wall holder (5) designed to be fixed to the side wall containing a cut-out opening into which a protrusion from the locking catch (1) is designed to be inserted

characterized in that the socket and the lever are connected together with tightening bolts (10)

whereby said tightening bolts are inserted in bores (11) of the lever (2) and in bores (12) of the socket (3).