EP3630573A1

EP3630573A1 - Undercarriage for a platform trolley

Info

Publication number: EP3630573A1
Application number: EP18728128.2A
Authority: EP
Inventors: Gernot GRANER; Philipp HERINCS
Original assignee: Rail Cargo Austria AG
Current assignee: Rail Cargo Austria AG
Priority date: 2017-05-31
Filing date: 2018-05-29
Publication date: 2020-04-08
Anticipated expiration: 2038-05-29
Also published as: CN111032474B; CN111032474A; RU2759684C2; SI3630573T1; PL3630573T3; EP3630573B1; AT520110A1; RU2019143707A3; HUE055723T2; RU2019143707A; WO2018219955A1; AT520110B1

Abstract

The invention relates to an undercarriage (1) for a platform trolley comprising: two head pieces (2a, 2b), each with a buffer plate (3a, 3b) for the arrangement of at least one buffer (4); a longitudinal member (5) connecting the two head pieces (2a, 2b), which longitudinal member defines a loading surface (6) for the arrangement of containers and extends along a central longitudinal axis (7), wherein the longitudinal member (5) comprises a preferably one-piece upper flange (8) and a preferably one-piece lower flange (9), which are arranged substantially one above the other and at their ends are connected to one another and to the head pieces (2a, 2b) via preferably one-piece longitudinal webs (10a, 10b, 10c, 10d).

Description

Underframe for a platform truck

The invention relates to a base for a platform truck.

From the prior art stands for platform car, especially container car carriers are known which comprise a longitudinal member which is arranged between two head pieces, each with a buffer breast for the arrangement of one or more buffers. In this case, the longitudinal member defines a loading area for the arrangement of containers and extends along a central longitudinal axis between the two head pieces.

For example, EP 2 837 542 A1 discloses such a known undercarriage for a container car, which is composed of a plurality of individual, consisting of steel profiles support elements. This known undercarriage comprises two outer longitudinal members, which run parallel to each other on the outside of the underframe and are connected to each other at the head pieces via transverse buffer carrier. Between the outer longitudinal members a discharge opening is formed. In other known bases the two outer longitudinal members are reinforced by transverse struts. The outer longitudinal members are usually formed of welded I-beams or box sections.

Such bases are complex and expensive to manufacture due to the large number of longitudinal welds. In addition, the strength of the base material used can not be exploited because the strength is reduced by the welds. In addition, hitherto no higher-strength steels have been used as the material. The object of the present invention is thus among others, a

To provide base for a platform car, which is easy to manufacture, has as few individual elements, yet ensures a higher strength. In particular, a strength of category Fl instead of Fll according to EN 12663-2 should be ensured. Welds should be avoided if possible, and it should be an optimal power flow with as few

Connecting elements are enabled. The weight of the undercarriage should be reduced if possible.

These and other objects are achieved by a subframe according to claim 1.

According to the invention, the longitudinal member comprises a top flange and a bottom flange, which are arranged substantially one above the other and are connected at their ends via longitudinal webs with each other and with the head pieces.

In order to reduce the number of elements of the undercarriage, it can be provided that the upper belt is in one piece. Likewise, it can be provided that the

Bottom strap is integral.

It is particularly advantageous, although the arranged on the head pieces,

Longitudinal webs are each in one piece. The number of required elements is thereby significantly reduced, so that ideally only two longitudinal webs are required in each case in addition to the upper flange and lower flange for connection with one head piece.

Due to the smaller number of elements and the reduction of the required

Welds results in a much faster and less error-prone manufacturing. The strength of the base material used can be better utilized, since no devaluation of the strength of weld notch cases must be made. When using high-strength structural steel, this effect is additionally increased compared to the use of conventional structural steel. The invention can be particularly distinguished when using higher-strength steels from voestalpine, in particular from the alform® family of materials

Minimum yield strength of more than 550 MPa up to 700 MPa, especially in the upper flange, in the lower flange and in the entire head piece.

In addition, with the use of high strength steel in combination with the subject construction, a weight reduction over conventional frames by up to 25% can be achieved, resulting in a higher possible payload of the car.

According to the invention it can be provided that the width of the longitudinal carrier is transverse to the central longitudinal axis of the longitudinal member is less than the width of the head pieces transverse to the central longitudinal axis. In particular, it can be provided that the width of the

Longitudinal member transverse to the central longitudinal axis about 20% to about 70%, preferably about 40%, the width of the head piece transverse to the central longitudinal axis. As a result, a further material saving is achieved with the same strength.

According to the invention, it can be provided that the upper flange and the lower flange are essentially identical. This enables a cost-saving and efficient production of the components.

According to the invention, it may be provided that the upper flange and the lower flange are arranged one above the other at a distance which is substantially equal to the width of the

Longitudinal member corresponds transversely to the central longitudinal axis. If necessary, the

Longitudinal beams in its cross section substantially in the form of a box-shaped, in particular square hollow profile. This ensures a particularly high strength of the longitudinal member.

According to the invention, it can be provided that the upper flange and the lower flange are selectively connected via angle braces. Preferably, at least four

Angled struts may be provided, wherein preferably two angle struts are arranged on each side of the longitudinal member. The angle struts can be arranged approximately in a range of 30% -70% of the length of the longitudinal member and preferably symmetrically along the central longitudinal axis in order to achieve a particularly good distribution of the load. The angle struts may in particular be K-shaped, with two ends each being arranged on the upper flange and two ends on the lower flange. This ensures a particularly good introduction of force.

According to the invention it can be provided that each of the two head pieces is connected via two separate longitudinal webs with the upper flange and the lower flange, wherein the longitudinal webs are substantially parallel to each other and arranged substantially normal to the loading surface. This ensures that the forces introduced into the head piece, in particular tensile forces, are efficiently forwarded to the side rail. The longitudinal webs are preferably in one piece.

According to the invention it can be provided that the longitudinal webs are designed substantially Y-shaped, each with three longitudinal web ends, wherein in each case a first

Längsstegende with the upper flange, a second longitudinal web end with the lower flange and a third longitudinal web end is connected to the head piece. This special shaping of the longitudinal webs eliminates the need for additional welds, since the shape of the longitudinal webs is already adapted to the special design of the upper and lower chords. In order not to impair the high strength and robustness of the longitudinal webs, these run as a direct extension of the longitudinal member in the head pieces and are welded to them. According to the invention, to increase the stability, it can also be provided that the first longitudinal web end is connected to the second longitudinal web end via a material web.

According to the invention it can be provided that the longitudinal webs are slightly curved and slightly widen in the direction of the longitudinal beam to the head pieces. For this purpose, it can be provided, in particular, that the longitudinal webs are curved from the third longitudinal web end in the direction of the first and second longitudinal web end at an angle of approximately 5 °. According to the invention it can be provided that the upper flange and preferably also the lower flange are each formed by a one-piece profile part. These profile parts may preferably be substantially planar.

According to the invention it can be provided that the upper flange and preferably also the lower flange is formed by a plurality of, preferably four, along the central longitudinal axis parallel to each other, by gutter-shaped depressions, in particular beads, connected material stiffeners whose distance from each other preferably about 30% to 70%, especially prefers about 50% of its extension across

Center longitudinal axis is.

According to the invention, provision may also be made for the top flange preferably to have two stiffening ribs running parallel to one another along the central longitudinal axis and extending downwards in a normal manner to the loading surface.

As a result, a particularly high strength is achieved. The extent of the

Stiffening ribs normal to the loading surface downwards may be about 10% to 20% of the width of the loading area. The stiffening ribs may preferably be distributed uniformly on the underside of the upper belt.

According to the invention it can be provided that the head pieces and the longitudinal members are designed substantially symmetrically to the central longitudinal axis of the longitudinal member.

According to the invention, it can be provided that the head pieces have at least three material recesses separated by material webs, which each extend from the region of the buffer breast in the direction of the side member and taper in this direction. The material recesses allow a reduction of the required material and thus a significant weight saving.

According to the invention, it may be provided that the head pieces taper from the region of the buffer breast in the direction of the longitudinal beam to form a tapered region. In the area of the tapered area, at least two

Material recesses may be provided, which also taper in this direction and are preferably substantially triangular. Rejuvenation of the headers ensures a seamless transition from the narrow side member to the standard width head pieces. The

Material recesses in turn allow a weight reduction while maintaining strength.

According to the invention, it can be provided that the head pieces taper from the region of the buffer breast in the direction of the longitudinal member in the plane defined by the loading surface to 20% to 70%, preferably approximately 40% of their extent transversely to the central longitudinal axis. This corresponds to the width of the longitudinal member, so that a direct transition from the head piece is achieved on the side member.

According to the invention it can be provided that the head pieces each one

have unattenuated area for the arrangement of rotating pans, which preferably extends transversely to the central longitudinal axis, preferably over the entire width of the head pieces, and in which no material recesses are provided. The head pieces taper in their extension transversely to the central longitudinal axis of the region of

Pufferbrust towards the side rail preferably from the end of the unattenuated area, so that the full strength of the material is maintained in the unattenuated area.

According to the invention, it can be provided that the unattenuated regions extend in each case along the central longitudinal axis substantially over 10% to 20%, preferably approximately 15%, of the length of the head pieces. As a result, there is sufficient scope for attaching the rotating pans in the unattenuated area.

According to the invention, it may be provided that the unattenuated areas along the central longitudinal axis are provided substantially centrally with respect to the length of the head pieces. The rotating pans can thus with respect to the length of the

Headpiece are each arranged centrally.

However, it may also be provided according to the invention to arrange the unattenuated areas offset by about 2% to 10% of the length of the head pieces in the direction of the longitudinal beam. According to the invention, at least one transverse arm with two brackets can be provided on the side member, the brackets each having container pins and extending essentially transversely to the central longitudinal axis. These container pins are used for the position fixing of containers and / or superstructures on the longitudinal member.

According to the invention, provision may be made for the carriers to be arranged on the upper belt and to be supported on the lower belt via transverse struts. As a result, a particularly good load distribution of the weight of the containers and / or structures can be achieved. The cross struts may be substantially V-shaped.

According to the invention it can be provided that on the sides of the head pieces for stiffening in each case a one-piece, deformed carrier profile is arranged, which serves to guide the buffer forces optimally from the buffer breast in the main cross member.

Furthermore, it can be provided according to the invention that at the top of the head pieces each one-piece cover plate is arranged, which serves to guide the buffer forces optimally from the buffer breast into the side member.

The invention further relates to a platform truck with a base frame according to the invention.

Further features of the invention will become apparent from the claims, the figures and the description. The invention will be explained in more detail below with reference to figures of two, non-limiting embodiments. Show it

Figure 1 is a schematic three-dimensional representation of an embodiment of a platform car with a base frame according to the invention.

Figures 2a - 2d views of the base frame according to the invention from above and from the sides and as a sectional view.

3a-3c views of the undercarriage according to the invention from the front, in a first sectional view and in a second sectional view; 4a - 4b views of a longitudinal web of the undercarriage according to the invention from the side and from above;

Fig. 5 is a schematic three-dimensional representation of another

Embodiment of a platform truck with an inventive

Undercarriage;

Fig. 6a - 6f views of the undercarriage according to the invention from above and from the sides and as a sectional view;

Fig. 7a - 7b views of a further embodiment of a longitudinal web according to the invention from the side and from above.

Fig. 1 shows a schematic three-dimensional representation of an embodiment of a platform trolley according to the invention. The platform cart includes a

Base frame 1 with two head pieces 2a, 2b, each with a buffer breast 3a, 3b. At each buffer breast 3a, 3b two buffers 4 are arranged in each case. The two head pieces 2a, 2b are connected by a longitudinal member 5, which defines a loading area 6 for supporting containers and / or structures. The longitudinal member 5 extends along a central longitudinal axis 7 and has carriers 19a, 19b for positioning the containers and / or assemblies. On the sides of the head pieces 2a, 2b is in each case a

formed carrier profile 24a, 24b arranged.

The longitudinal member 5 comprises a one-piece upper flange 8 and a one-piece lower flange 9, which are arranged one above the other and are connected at their ends via the longitudinal webs 10a, 10b with each other and with the head pieces 2a, 2b. In addition, the upper flange 8 and the lower flange 9 are connected to each other via angle braces 22a, 22b. Also shown are the two rotary pans 17a, 17b, which are respectively arranged on the underside of the head pieces 2a, 2b.

The width of the longitudinal member 5 transversely to the central longitudinal axis 7 is smaller than the width of the head pieces 2a, 2b transverse to the central longitudinal axis 7. The upper flange 8 and the lower flange 9 form a substantially box-shaped hollow body and acting on the longitudinal member 5 via the carrier 19a, 19b Forces are efficiently discharged via the longitudinal webs 10a, 10b to the head pieces 2a, 2b. It can further be seen that, for weight reduction, the head pieces 2a, 2b have numerous recesses. In addition, it can be seen that the upper flange 8 and the lower flange 9 four, along the central longitudinal axis 7 parallel to each other

Material stiffeners 12a, 12b, 12c, 12d, between which beads are arranged. The distance between the material stiffeners 12a, 12b, 12c, 12d is about 50% of their extent transverse to the central longitudinal axis 7.

Fig. 2a shows a schematic representation of an embodiment of a

platform truck according to the invention from below.

The platform truck comprises a base frame 1 with two head pieces 2a, 2b, each with a buffer breast 3a, 3b for the arrangement of buffers 4. Between the two

Head pieces 2a, 2b, a longitudinal member 5 extends with a central longitudinal axis 7. On the sides of the head pieces 2a, 2b, a deformed carrier profile 24a, 24b is arranged in each case.

The longitudinal member 5 comprises a top flange 8 and a bottom flange 9; in the illustrated view from below, only the lower flange 9 is visible. The upper flange 8 and the lower flange 9 are connected at their ends via longitudinal webs 10a, 10b, 10c, 10d to each other and to the head pieces 2a, 2b. The width of the longitudinal member 5 across the

Center longitudinal axis 7 is less than the width of the head pieces 2a, 2b transverse to

Center longitudinal axis 7, and in the present embodiment is about 40% of the width of the head pieces 2a, 2b transverse to the central longitudinal axis. 7

On the underside of the head pieces 2a, 2b, rotary pans 17a, 17b are arranged. These are located in an unattenuated area 16a, 16b of the two head pieces 2a, 2b. Each of the two head pieces 2a, 2b is connected via two separate longitudinal webs 10a, 10b and 10c, 10d to the upper flange 8 and the lower flange 9, wherein the

Longitudinal webs 10a, 10b, 10c, 10d are substantially parallel to each other and are arranged substantially normal to the loading surface 6, not shown. The

Longitudinal webs 10a, 10b, 10c, 10d extend substantially parallel or only slightly curved with respect to the central longitudinal axis 7. The lower flange 9 is formed by four, along the central longitudinal axis 7 parallel to each other and at their ends connected to each other, material stiffeners 12a, 12b, 12c, 12d. The distance of the material stiffeners 12a, 12b, 12c, 12d is about 50% of their extent transverse to the central longitudinal axis 7. Both the

Head pieces 2a, 2b and the longitudinal member 5 is designed substantially symmetrically to the central longitudinal axis 7.

The head pieces 2a, 2b taper from the region of the buffer breast 3a, 3b in the direction of the longitudinal member 5. In the plane defined by the loading surface 6, not shown, the taper is about 40% of its extension transverse to the central longitudinal axis 7, in other words, the extent of Head pieces 2a, 2b in the region of the transition to the longitudinal member 5 is only 40% of their extent in the region of the buffer breast 3a, 3b. However, the taper begins only after the unattenuated area 16a, 16b. The head pieces 2a, 2b thus taper from the area of the buffer breast 3a, 3b in the direction of the longitudinal beam 5 only from the unattenuated area 16a, 16b, so that the full width of the head pieces 2a, 2b is available for the rotary pans 17a, 17b.

On the longitudinal member 5, three transverse arms 18 are provided on both sides. These serve to receive containers and / or structures and extend substantially transversely to the central longitudinal axis 7. In further, not shown

Embodiments of the invention may also be provided more or fewer cross beams.

The transverse arm 18 are arranged on the top flange 8 and are supported by

Cross struts 21 a, 21 b on the lower flange 9 from.

Fig. 2b shows a view of the undercarriage 1 of Fig. 2a from the side. It can be seen in this view that the longitudinal member 5 defines a loading surface 6 for the arrangement of containers and / or structures. It can also be seen that the

Longitudinal member 5 comprises a top flange 8 and a bottom flange 9, which are arranged one above the other, and are connected at their ends via longitudinal webs 10a, 10b to each other and to the head pieces 2a, 2b. The upper flange 8 and the lower flange 9 are substantially identical. The upper belt 8 and the lower belt 9 are arranged one above the other at a distance that in

Substantially corresponds to the width of the longitudinal member 5 transversely to the central longitudinal axis 7, so that the longitudinal member 5 has the shape of a substantially square hollow profile. The upper belt 8 and the lower belt 9 are selectively connected to one another via the K-shaped angle struts 22a, 22b. The angle braces 22a, 22b, 22c, 22d are designed in such a K-shaped manner that in each case two of their ends are connected to the upper flange 8 and the lower flange 9.

The longitudinal webs 10a, 10b, 10c, 10d are Y-shaped, each with three longitudinal web ends 1 1 a, 1 1 b, 1 1 c. In each case a longitudinal web end 1 1 a is with the upper flange 8, a second

Longitudinal web end 1 1 b with the lower flange 9 and a third longitudinal web end 1 1 c connected to the head piece 2a, 2b. In an unattenuated area 16a, 16b of the

Headpiece 2a, 2b is located at the bottom of a rotating pan 17a, 17b. Also visible are the transverse arms 18, which are connected both to the upper belt 8 and to the lower belt 9 and have on their upper side or in the region of the loading surface 6 container pins 20a, 20b for receiving containers and / or superstructures.

Fig. 2c shows a view of the underframe 1 according to the invention from above. The underframe 1 comprises two head pieces 2a, 2b each having a buffer breast 3a, 3b and buffers 4 arranged thereon. Between the head pieces 2a, 2b a longitudinal member 5 extends symmetrically along a central longitudinal axis 7. The longitudinal member 5 forms a loading surface 6 for supporting containers and / or structures, wherein the

Loading surface 6 is formed by the surface of the upper belt 8.

At the head pieces 2a, 2b, the course of the longitudinal webs 10a, 10b, 10c, 10d in this view is not visible because they are hidden in this view by a cover plate 25a, 25b, but their position has been indicated schematically.

The head pieces 2a, 2b and the longitudinal member 5 are executed substantially symmetrically to the central longitudinal axis 7. The head pieces 2a, 2b comprise a plurality of material recesses 13a, 13b, 13c, which are separated from one another by material webs and extend in each case from the region of the buffer breast 3a, 3b in the direction of the side member 5 and taper in this direction.

The head pieces 2a, 2b themselves also taper from the area of the buffer breast 3a, 3b in the direction of the longitudinal member 5. At least two further material recesses 15a, 15b are provided in the region of the tapered region 14, which also taper in this direction and are essentially triangular , Between the material recesses 15a, 15b and the material recesses 13a, 13b, 13c there is an unattenuated area 16a, 16b.

The head pieces 2a, 2b taper from the region of the buffer breast 3a, 3b in the direction of the longitudinal member 5 to about 40% of their extension transversely to the central longitudinal axis 7.

The unattenuated region 16a, 16b extends in each case transversely to the central longitudinal axis 7. The head pieces 2a, 2b taper from the region of the buffer breast 3a, 3b in the direction of the longitudinal member 5 only from the unattenuated region 16a, 16b. It is provided in this embodiment that the unattenuated areas 16a, 16b each extend along the central longitudinal axis 7 substantially over about 15% of the length of the head pieces 2a, 2b and along the central longitudinal axis 7 with respect to the length of the head pieces 2a, 2b easily are provided offset in the direction of the longitudinal member 5.

Further shown in this schematic representation are again the

Transverse arm 18 with the container pins 20a, 20b arranged thereon. For reasons of clarity, 18 container pins 20a, 20b are shown only in two transverse arms.

The container pins 20a, 20b serve to receive containers and / or

Superstructures. The transverse arms 18 comprise supports 19a, 19b which are arranged on the upper flange 8 and extend essentially transversely to the central longitudinal axis 7. In addition, transverse struts 21 a, 21 b are provided which support the carrier 19 a, 19 b on the lower flange 9. 2d shows a further schematic view of the undercarriage 1 according to the invention along the section AA indicated in FIG. 2c. The execution of the longitudinal member 5 by upper flange 8 and lower flange 9, which run parallel to each other and are connected to one another and to the head pieces 2a, 2b by the angle struts 22c, 22d and the longitudinal webs 10b, 10d, is again visible. It is apparent in particular that the longitudinal webs 10b, 10d are substantially Y-shaped and have three longitudinal web ends 1 1 a, 1 1 b, 1 1 c. The first longitudinal web end 1 1 a is with the upper flange 8, the second longitudinal web end 1 1 b with the lower flange 9 and the third

Längsstegende 1 1 c connected to the buffer breast 3a, 3b.

Furthermore, the longitudinal web ends 1 1 a, 1 1 b of the longitudinal webs 10a, 10b, 10c, 10d stabilizing struts. Finally, material recesses are also provided in the longitudinal webs 10a, 10b, 10c, 10d in order to reduce the weight of these elements. In the unattenuated region 16a, 16b of the head pieces 2a, 2b turn the turntables 17a, 17b are arranged.

Fig. 3a shows a schematic view of the undercarriage 1 according to the invention from the side, wherein the buffer 4 and the buffer breast 3a are visible. Furthermore, the transverse struts 21 a, 21 b for supporting the transverse arm 18 are visible. Finally, it can be seen in this illustration that the longitudinal webs 10a, 10b extend substantially parallel to the central longitudinal axis 7 of the longitudinal member 5. At the bottom of the head piece 2a, a lower part 23 is provided. Also visible in this illustration, the container pins 20a, 20b.

Fig. 3b shows the direction indicated in Fig. 2b section B-B in a schematic representation. Of the

Section runs transversely through the head piece 2a and the longitudinal webs 10a, 10b. Again, the transverse struts 21 a, 21 b of the transverse arm 18 can be seen.

On the underside of the head piece 2a, the lower part 23 can be seen. On the sides of the

Head 2a is to increase the stability and the optimal introduction of the

Buffer forces in the main cross member in each case a reshaped carrier profile 24a, 24b arranged. FIG. 3c shows a schematic representation of the section CC defined in FIG. 2b which extends in the region of the longitudinal member 5. In this illustration, it can be seen that the upper flange 8 and the lower flange 9 form a substantially square hollow profile. Indicated is defined by the top of the upper belt 8 cargo area 6 and the transverse arm 18 with the cross braces 21 a, 21 b. In this view, the arranged in the region of the head piece 2b lower part 23 can be seen. Also, this lower part 23 has material recesses for weight reduction. The distance between the upper flange 8 and the lower flange 9 substantially corresponds to the width of the

Longitudinal member 5 transverse to the central longitudinal axis 7. Also visible in this

Representation of the material stiffeners 12a, 12b, 12c, 12d of the upper belt 8 and the lower belt 9th

FIGS. 4a-4b show views of a longitudinal web 10a of a device according to the invention

Underframe from the side and from above. It can be seen that the longitudinal web 10 a Y-shaped with three longitudinal web ends 1 1 a, 1 1 b, 1 1 c is executed. As shown in the top view according to FIG. 4b, the longitudinal web 10a extends slightly curved in order to expand slightly in the direction from the side member to the head pieces. For this purpose, it is provided that the longitudinal web 10 a from the third longitudinal web end 1 1 c in the direction of the first longitudinal web end 1 1 a and second Längssägende 1 1 b is curved at an angle of about 5 °.

Fig. 5 shows a schematic three-dimensional representation of another

Embodiment of a platform truck with a subframe 1 according to the invention. This differs in particular in the execution of the upper belt 8 and the lower belt 9 and the execution of the longitudinal webs 10a, 10b, 10c, 10d of the

Embodiment of FIG. 1.

The platform carriage comprises a base frame 1 with two head pieces 2a, 2b each having a buffer breast 3a, 3b. At each buffer breast 3a, 3b are two buffers 4, respectively

arranged. The two head pieces 2a, 2b are connected by a longitudinal member 5, which defines a loading area 6 for supporting containers and / or structures. The longitudinal member 5 extends along a central longitudinal axis 7 and has carriers 19a, 19b for positioning the containers and / or assemblies. On the sides of the head pieces 2a, 2b, a shaped carrier profile 24a, 24b is arranged in each case.

The longitudinal member 5 comprises a one-piece upper flange 8 and a one-piece lower flange 9, which are arranged one above the other and are connected at their ends via the longitudinal webs 10a, 10b with each other and with the head pieces 2a, 2b. In addition, the upper flange 8 and the lower flange 9 are connected to each other via angle braces 22a, 22b

connected. Also shown are the two rotary pans 17a, 17b, which are respectively arranged on the underside of the head pieces 2a, 2b.

The width of the longitudinal member 5 transversely to the central longitudinal axis 7 is smaller than the width of the head pieces 2a, 2b transverse to the central longitudinal axis 7. The upper flange 8 and the lower flange 9 form a substantially box-shaped hollow body and acting on the longitudinal member 5 via the carrier 19a, 19b Forces are efficiently discharged via the longitudinal webs 10a, 10b to the head pieces 2a, 2b.

It can further be seen that, for weight reduction, the head pieces 2a, 2b have numerous recesses. In addition, it can be seen that the upper flange 8 and the lower flange 9, in contrast to the embodiment of FIG. 1, are formed by substantially planar profile parts.

Fig. 6a shows a schematic representation of an embodiment of a

platform truck according to the invention from below. The platform carriage comprises a base frame 1 with two head pieces 2a, 2b, each with a buffer breast 3a, 3b for the arrangement of buffers 4. Between the two head pieces 2a, 2b, a longitudinal member 5 extends with a central longitudinal axis 7. On the sides of the head pieces 2a, 2b in each case a reshaped carrier profile 24a, 24b is arranged.

The longitudinal member 5 comprises a top flange 8 and a bottom flange 9; in the illustrated view from below, only the lower flange 9 is visible. The upper flange 8 and the lower flange 9 are connected at their ends via longitudinal webs 10a, 10b, 10c, 10d to each other and to the head pieces 2a, 2b. The width of the longitudinal member 5 transversely to the central longitudinal axis 7 is less than the width of the head pieces 2a, 2b transverse to the central longitudinal axis 7, and is present

Embodiment about 40% of the width of the head pieces 2a, 2b transverse to

Center longitudinal axis 7.

Longitudinal webs 10a, 10b, 10c, 10d are slightly curved with respect to the

Center longitudinal axis 7. Both the head pieces 2a, 2b and the longitudinal member 5 are executed substantially symmetrically to the central longitudinal axis 7.

The head pieces 2a, 2b taper from the region of the buffer breast 3a, 3b in the direction of the longitudinal member 5. In the plane defined by the loading surface 6, not shown, the taper is about 40% of its extension transverse to the central longitudinal axis 7, in other words, the extent of Head pieces 2a, 2b in the region of the transition to the longitudinal member 5 is only 40% of their extent in the region of the buffer breast 3a, 3b. However, the taper begins only after the unattenuated area 16a, 16b.

The head pieces 2a, 2b thus taper from the area of the buffer breast 3a, 3b in the direction of the longitudinal beam 5 only from the unattenuated area 16a, 16b, so that the full width of the head pieces 2a, 2b is available for the rotary pans 17a, 17b. On the longitudinal member 5, three transverse arms 18 are provided on both sides. These serve to receive containers and / or structures and extend substantially transversely to the central longitudinal axis 7. In further, not shown

Embodiments of the invention may also be provided more or fewer cross beams. The transverse arm 18 are arranged on the upper flange 8 and are supported by cross struts 21 a, 21 b on the lower flange 9 from.

Fig. 6b shows a view of the underframe 1 according to the invention from above. The underframe 1 comprises two head pieces 2a, 2b each having a buffer breast 3a, 3b and buffers 4 arranged thereon. Between the head pieces 2a, 2b a longitudinal member 5 extends symmetrically along a central longitudinal axis 7. The longitudinal member 5 forms a loading surface 6 for supporting containers and / or structures, wherein the

Loading surface 6 is formed by the surface of the upper belt 8.

The head pieces 2a, 2b and the longitudinal member 5 are executed substantially symmetrically to the central longitudinal axis 7. The head pieces 2a, 2b comprise a plurality of

Material webs separate material recesses 13a, 13b, 13c, each extending from the region of the buffer breast 3a, 3b in the direction of the longitudinal member 5 and taper in this direction. The head pieces 2a, 2b themselves also taper from the region of the buffer breast 3a, 3b in the direction of the longitudinal member 5. Im

In the region of the tapered region 14, at least two further material recesses 15a, 15b are provided, which likewise taper in this direction and in the

Are essentially triangular. Between the material recesses 15a, 15b and the material recesses 13a, 13b, 13c there is an unattenuated area 16a, 16b.

The unattenuated region 16a, 16b extends in each case transversely to the central longitudinal axis 7. The head pieces 2a, 2b taper from the region of the buffer breast 3a, 3b in the direction of the longitudinal member 5 only from the unattenuated region 16a, 16b. It is provided in this embodiment that the unattenuated areas 16a, 16b each extend along the central longitudinal axis 7 substantially over about 15% of the length of the head pieces 2a, 2b and along the central longitudinal axis 7 with respect to the length of the head pieces 2a, 2b easily are provided offset in the direction of the longitudinal member 5. Also shown in this schematic representation are the transverse beams 18 with the container pins 20a, 20b arranged thereon.

The container pins 20a, 20b serve to receive containers and / or

Superstructures. The transverse arms 18 comprise supports 19a, 19b which are arranged on the upper flange 8 and extend essentially transversely to the central longitudinal axis 7. In addition, transverse struts 21 a, 21 b are provided which support the carrier 19 a, 19 b on the lower flange 9.

Fig. 6c shows a view of the underframe 1 from the side. It can be seen in this view that the longitudinal member 5 defines a loading surface 6 for the arrangement of containers and / or structures. In addition, it can be seen that the longitudinal member 5 comprises a top flange 8 and a bottom flange 9, which are arranged one above the other, and are connected at their ends via longitudinal webs 10a, 10b to each other and to the head pieces 2a, 2b.

The upper flange 8 and the lower flange 9 are substantially identical. The upper belt 8 and the lower belt 9 are arranged one above the other at a distance that in

Substantially corresponds to the width of the longitudinal member 5 transversely to the central longitudinal axis 7, so that the longitudinal member 5 has the shape of a substantially square hollow profile. The top flange 8 and the bottom flange 9 are selectively connected to one another via the angle struts 22a, 22b, 22c, 22d.

Longitudinal web end 1 1 b with the lower flange 9 and a third longitudinal web end 1 1 c connected to the head piece 2a, 2b. The longitudinal bar ends are connected by struts.

In a non-weakened region 16a, 16b of the head piece 2a, 2b is located at the bottom of a rotary pan 17a, 17b. Also visible are the transverse arms 18, which are connected to both the upper flange 8 and the lower flange 9 and at its top or in the region of

Loading area 6 container pins 20a, 20b for receiving containers and / or

Have structures.

Fig. 6d shows a schematic view of the undercarriage 1 according to the invention from the side, wherein the buffer 4 and the buffer breast 3a are visible. Furthermore, the transverse struts 21 a, 21 b for supporting the transverse arm 18 are visible. Finally, it can be seen in this illustration that the longitudinal webs 10a, 10b extend substantially parallel to the central longitudinal axis 7 of the longitudinal member 5. At the bottom of the head piece 2a, a lower part 23 is provided. Also visible in this illustration, the container pins 20a, 20b.

Fig. 6e shows the direction indicated in Fig. 6c section B-B in a schematic representation. Of the

Head 2a is to increase the stability and the optimal introduction of the

Buffer forces in the main cross member in each case a reshaped carrier profile 24a, 24b arranged.

FIG. 6f shows a schematic representation of the section C-C defined in FIG. 6c, which runs in the region of the longitudinal member 5. In this illustration, it can be seen that the upper flange 8 and the lower flange 9 form a substantially square hollow profile. Indicated is defined by the top of the upper belt 8 cargo area 6 and the transverse arm 18 with the cross braces 21 a, 21 b.

In this view, the arranged in the region of the head piece 2b lower part 23 can be seen. Also, this lower part 23 has material recesses for weight reduction. The distance between the upper flange 8 and the lower flange 9 substantially corresponds to the width of the longitudinal member 5 transversely to the central longitudinal axis 7. Also visible in this illustration are the stiffening ribs 26a, 26b of the upper belt 8. The two stiffening ribs 26a, 26b are arranged on the underside of the upper belt 8 and extend along the central longitudinal axis 7 parallel to each other and extend normal to the loading surface 6 downwards.

FIGS. 7a-7b show views of a longitudinal web 10a of a device according to the invention

Underframe from the side and from above. It can be seen that the longitudinal web 10 a Y-shaped with three longitudinal web ends 1 1 a, 1 1 b, 1 1 c is executed. To increase the stability, the first longitudinal web end 11a is connected to the second longitudinal web end 11b via material struts.

As shown in the top view according to FIG. 7b, the longitudinal web 10a extends slightly curved in order to expand slightly in the direction from the longitudinal member to the head pieces. For this purpose, it is provided that the longitudinal web 10 a from the third longitudinal web end 1 1 c in the direction of the first longitudinal web end 1 1 a and second Längssägende 1 1 b is curved at an angle of about 5 °.

The subject undercarriage was the result of a cooperation between Rail Cargo Wagon - Austria GmbH and the voestalpine Group, in particular the voestalpine Steel Division and the voestalpine Metal Forming Division.

LIST OF REFERENCE NUMBERS

1 base

2a, 2b head piece

3a, 3b Pufferbrust

4 buffers

5 side members

6 loading area

7 center longitudinal axis

8 upper strap

9 bottom strap

10a, 10b, 10c, 10d longitudinal ridge

1 1 a, 1 1 b, 1 1 c longitudinal bar end

12a, 12b, 12c, 12d material stiffening

13a, 13b, 13c Material recess

14 Rejuvenated area

15a, 15b Material recesses

16a, 16b Unprotected area

17a, 17b rotating pan

18 cross booms

19a, 19b carrier

20a, 20b container pin

21 a, 21 b cross strut

22a, 22b, 22c, 22d angle brace

23 lower part

24a, 24b carrier profile

25a, 25b cover plate

26a, 26b stiffening rib

Claims

claims

1 . Undercarriage (1) for a platform truck, comprising

a. two head pieces (2a, 2b) each having a buffer breast (3a, 3b) for arranging at least one buffer (4),

b. one, the two head pieces (2a, 2b) connecting the longitudinal beam (5) defining a loading surface (6) for arranging containers and / or structures and extending along a central longitudinal axis (7), characterized in that the longitudinal carrier (5) a preferably integral upper flange (8) and a preferably one-piece lower flange (9) which are arranged substantially one above the other and at their ends via preferably one-piece longitudinal webs (10a, 10b, 10c, 10d) with each other and with the head pieces (2a, 2b ) are connected.

2. Underframe (1) according to claim 1, characterized in that the width of the longitudinal carrier (5) transversely to the central longitudinal axis (7) is smaller than the width of the head pieces (2a, 2b) transversely to the central longitudinal axis (7).

3. Underframe (1) according to claim 2, characterized in that the width of the longitudinal carrier (5) transversely to the central longitudinal axis (7) about 20% to about 70%, preferably about 40%, the width of the head piece (2a, 2b) transversely to

Center longitudinal axis (7) is.

4. Underframe (1) according to one of claims 1 to 3, characterized in that the upper flange (8) and the lower flange (9) are substantially identical.

5. Underframe (1) according to one of claims 1 to 4, characterized in that the upper belt (8) and the lower belt (9) are arranged one above the other at a distance substantially perpendicular to the width of the longitudinal member (5)

Center longitudinal axis (7) corresponds.

6. Underframe (1) according to one of claims 1 to 5, characterized in that the upper flange (8) and the lower flange (9) are selectively connected via angle braces (22a, 22b, 22c, 22d).

7. Underframe (1) according to one of claims 1 to 6, characterized in that each of the two head pieces (2a, 2b) via two separate longitudinal webs (10a, 10b, 10c, 10d) with the upper flange (8) and the lower flange ( 9), wherein the longitudinal webs (10a, 10b, 10c, 10d) are substantially parallel to each other and substantially normal to the loading surface (6) are arranged.

8. Underframe (1) according to one of claims 1 to 7, characterized in that the longitudinal webs (10a, 10b, 10c, 10d) is substantially Y-shaped, each with three longitudinal web ends (1 1 a, 1 1 b, 1 1 c ) are executed, wherein in each case a first

Longitudinal bar end (1 1 a) with the upper flange (8), a second longitudinal bar end (1 1 b) with the lower flange (9) and a third longitudinal bar end (1 1 c) with the head piece (2a, 2b) is connected.

9. Underframe (1) according to claim 8, characterized in that the longitudinal webs (10 a, 10 b, 10 c, 10 d) from the third longitudinal web end (1 1 c) in the direction of the first longitudinal web end (1 1 a) and second longitudinal web end (1 1 b ) are curved at an angle of about 5 °.

10. Underframe (1) according to one of claims 1 to 9, characterized in that the upper flange (8) and preferably also the lower flange (9) are each formed by a one-piece and preferably substantially planar profile part.

1 1. Underframe (1) according to one of claims 1 to 10, characterized in that the upper flange (8) and preferably also the lower flange (9) by a plurality, preferably four, along the central longitudinal axis (7) parallel to each other

extending, by gutter-shaped depressions, in particular beads, connected material stiffeners (12a, 12b, 12c, 12d) is formed, the distance between them preferably about 30% to 70%, more preferably about 50% of their

Expansion transverse to the central longitudinal axis (7).

12. Undercarriage according to one of claims 1 to 1 1, characterized in that the upper belt (8) on its underside preferably two along the

Center longitudinal axis (7) parallel to each other and normal to

Loading surface (6) downwardly extending stiffening ribs (26a, 26b).

13. Underframe (1) according to one of claims 1 to 12, characterized in that the head pieces (2a, 2b) and the longitudinal carrier (5) substantially

symmetrical to the central longitudinal axis (7) are executed.

14. Underframe (1) according to any one of claims 1 to 13, characterized in that the head pieces (2a, 2b) at least three, separated by material webs Materialaussparungen (13a, 13b, 13c), each of which from the region of the buffer breast (3a , 3b) in the direction of the longitudinal support (5) and taper in this direction.

15. underframe (1) according to one of claims 1 to 14, characterized in that the head pieces (2a, 2b) from the region of the buffer breast (3a, 3b) in the direction of the longitudinal carrier (5) to form a tapered region (14) rejuvenate.

16. Underframe (1) according to claim 15, characterized in that in the region of the tapered region (14) at least two material recesses (15a, 15b) are provided, which also taper in this direction and are preferably substantially triangular.

17. Underframe (1) according to claim 14 or 15, characterized in that the head pieces (2a, 2b) from the region of the buffer breast (3a, 3b) in the direction of the longitudinal carrier (5) in the plane defined by the loading surface (6) taper to 20% to 70%, preferably about 40% of their extension transversely to the central longitudinal axis (7).

18. Underframe (1) according to one of claims 1 to 17, characterized in that the head pieces (2a, 2b) each have an unattenuated area (16a, 16b) for the arrangement of rotary cups (17a, 17b), each transverse to the Center longitudinal axis (7) extends, and in which no material recesses

are provided, wherein the head pieces (2a, 2b) from the region of the buffer breast (3a, 3b) in the direction of the longitudinal carrier (5) only from the unattenuated area

(16a, 16b) taper in their extension transversely to the central longitudinal axis (7).

19. Underframe (1) according to claim 18, characterized in that the

unattenuated areas (16a, 16b) each along the central longitudinal axis (7) substantially over 10% to 20%, preferably about 15% of the length of

Head pieces (2a, 2b) extend.

20. underframe (1) according to claim 18 or 19, characterized in that the unattenuated areas (16 a, 16 b) along the central longitudinal axis (7) with respect to the length of the head pieces (2 a, 2 b) are provided substantially centrally.

21. Underframe (1) according to one of claims 18 to 20, characterized in that the unattenuated areas (16a, 16b) are offset by about 2% to 10% of the length of the head pieces (2a, 2b) in the direction of the longitudinal member (5) ,

22. underframe (1) according to one of claims 1 to 21, characterized in that the longitudinal support (5) at least one transverse arm (18) with two carriers (21 a, 21 b) is provided, wherein the carrier (21 a, 21 b) each have container pin (20a, 20b) for receiving containers and / or structures and extend substantially transversely to the central longitudinal axis (7).

23. Underframe (1) according to claim 22, characterized in that the carrier

(19a, 19b) are arranged on the upper flange (8) and are supported by cross braces (21 a, 21 b) on the lower flange (9).

24. Underframe (1) according to one of claims 1 to 23, characterized in that on the sides of the head pieces (2a, 2b) for stiffening in each case a

one-piece, formed carrier profile (24a, 24b) is arranged.

25. Underframe (1) according to one of claims 1 to 24, characterized in that at the top of the head pieces (2a, 2b) each have a one-piece cover plate (25a, 25b) is arranged.

26. Platform carriage with a base (1) according to one of claims 1 to 25.