CZ302845B6 - Rail vehicle body front part and process for producing thereof - Google Patents

Abstract

The present invention relates to a rail vehicle body front part comprising a base part being formed by lateral parts (3, 3?) with front poles (4) and a roof part (5), which all is made of laminate, and an upper frame (6) and a rear flange (7), which both are made of steel. The front part further comprises a lower plastic front element (2) that is attached to an internal flanged wing (12) of a steel tube (9) arranged on inner side of the poles (4) of the lateral parts (3, 3?) wherein said upper steel frame (6) with the rear flange is attached to the tube (9) for fastening to the vehicle central part and the lateral parts (3, 3?) are attached to outer flanged wings (11) of the tube (9). The invention also relates to a process for producing the above-described front part wherein the production process is characterized in that first the lateral parts (3, 3?) are joined with the front pole (4), the roof part (5), the upper frame (6) and the rear flange (7). The steel tube (9) is arranged on inner side of the lateral part (3, 3?) poles (4) and the lower plastic front element (2) is attached to the inner flanged wing (12) of the steel tube (9). Subsequently, the upper steel frame (6) with the rear flange (7) for attaching the vehicle central part is fastened onto the tube (9). The lateral parts (3, 3?) are attached to the tube (9) outer flanged wings (11), wherein the inner flanged wings (12) of the steel tube (9) are attached thereto in the direction towards the inside of the front part (1) structure.

Description

The front part of the body of the rail vehicle and its production method

Technical field

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a frontal body portion of a rail vehicle, in particular a tram, which attaches to a carcass of a basic vehicle segment. The invention also relates to a method of manufacturing this face piece.

BACKGROUND OF THE INVENTION

Rail vehicles, such as urban and suburban trams, are made of sheet metal elements such as circumferential arches, ceiling parts, window side panels, etc., which are welded together. These are suitably shaped sheet metal parts that meet the rigidity and strength requirements of the bodywork and match the required external shape. Also the front part was produced in this way. Thus, as a welder, which was lined with suitable plastic parts and windows were fitted with glass. However, such constructions are no longer satisfactory because more and more emphasis is placed on vehicle relieving, but with the same high safety requirements and the achievement of prescribed external shapes. Apart from the fact that the construction of such a metal frame requires precise and laborious welding of many parts and is therefore expensive.

For this reason, plastic parts, especially laminate parts, which form shells, were used for the construction of the front parts of trams. Such vehicle parts are significantly lighter. However, the problem of sufficient strength again arises.

Generally, such a construction is mentioned in CZ-B6 282455, although the essence of the invention described therein is to solve the connection of such a front panel to the middle body panel.

CZ-B6 290149 discloses a rail vehicle front part structure wherein a steel frame of a central part is provided with a front frame having two side side frames with an upper and a lower horizontal tube, the horizontal tubes being connected at the front by a curved frontal shaped tube. In the uppermost part of the front tubes, these are connected by a front connecting tube, also bent forward and bent corresponding to the desired convex shape of the front of the car, and joining the upper and also outwardly bent tube as the upper part of the forehead. Still there are other reinforcement tubes. So it is a kind of carrying basket that is screwed to the skeleton of the middle part.

Independently of this carrier basket, a shell-shaped shell with holes for the windshields and side windows is made of laminate. And this shell is put on the carrying basket, fastened appropriately and

4o will provide various inner plastic parts or fillings as well as glass.

This solution replaces the flat sheet metal parts with a laminate, however, the laminate is not load-bearing, constitutes only the fairing and is still heavy because there is still a large proportion of welded steel profiles forming the carrier basket.

SUMMARY OF THE INVENTION

It is an object of the present invention to provide a front end for trams which uses plastic parts, but in such a way as to allow for the assumption of a strength function in the structure, thereby reducing the use of metal parts to a minimum.

The above-mentioned drawbacks are overcome by the rail vehicle front part comprising the pin pillar side parts and the roof part made of laminate and the steel upper frame and rear flange according to the invention, which further comprises the lower part. plastic

a front panel which is fixed to the inner flange wing of a steel tube arranged on the inside of the side column pillars, the steel upper frame with a rear flange being fixed to the tube and the side parts fixed to the outer flange wings tubing.

In a preferred embodiment, the inner flanged wings of the steel tube for fastening the plastic front panel are designed as an inwardly facing flange construction.

In another preferred embodiment, the outer flange wings are parallel to the axis of the face piece.

In a further preferred embodiment, a groove is provided on the inner side of the columns of the side parts, the radius of which corresponds to the radius of the pipe.

In another preferred embodiment, for complete lining from the inner side of the end piece tube, an inner lining mounted on the side piece column is provided.

The present invention also relates to a method for manufacturing such a front panel body of a rail vehicle by first joining the side panels with the front pillar, the roof panel, the upper frame and the rear flange, which comprises arranging a steel tube on the inside of the pillar side panels. and to the inner flange wing of the steel tube, the lower plastic front panel is attached, the upper steel frame with the rear flange for attachment to the central part of the vehicle is fastened to the tube and the side parts fastened to the outer flange wings of the tube; fastens inwardly the front panel structure.

BRIEF DESCRIPTION OF THE DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of the front panel of the present invention; FIG. 3 is a detail of FIG. Fig. 4 shows a detail A of Fig. 1 with a sectional view in the region of the post of the front panel according to the invention with a fully lined rod; and Fig. 5 shows an exterior side view.

DETAILED DESCRIPTION OF THE INVENTION

FIG. 1 shows the front part 1 of the rail vehicle according to the invention in the assembled state. It can be seen that it consists of a lower front panel 2, side panels 3 and 3 'with front pillars 4 and a roof panel 5. These panels are all of laminate. In this assembled state, only the upper frame 6 with the rear flange 7, which is fastened to the middle frame frame (not shown), is visible from the steel reinforcing parts.

In Fig. 2, a second reinforcing steel part is also formed, which is a shaped corner face tube 9. It is concealed in the columns 4 of the side panel. This front pipe 9 is firmly connected with its flange 10 to the front flange 8 of the upper frame 6.

At the bottom, the tube 9 is provided with a pair of flange wings 11, 12, namely an axial flange wing 11, the pipe being substantially parallel to the vehicle axis, and further facing the flange wing 12 facing inwardly. The front panel 2 is fixed to the axial flanged wings 11 and to the front flanged wings 12, which is essentially a high-performance laminate panel which cooperates in lifting the tram by the coupling.

The side panels 3 and 3 'are then fastened to the upper frames 6. The right side panel 3 in the direction of travel is provided with a door opening 13 and a smaller opening 14 for the side glass, and the left side panel 3' has a large opening 15 for the large side panels. glass. At the front is the windshield opening 16.

FIG. 5 is an outside view of the side panel 3 '. Although the side parts 3 and 3 'are different, in the substantial part which is the post 4, they are made identically, so that a groove 17 is provided in the post, which has only a slightly larger radius than the radius of the pipe 9 This is very well seen in detail A of Fig. 1 with the column 4 in cross section in Fig. 3.

In the same detail with the section in FIG. 4, it can be seen that for complete lining, an inner lining 18 is suitably fastened to the column 4 of the side panel 3 and 3 ', for example by gluing.

In Fig. 5, the liner 18 is visible and below it is hidden a tube 9 mounted in a groove 7.

As mentioned, a front panel 2 is fixed between the front flange wings 12 and this forms a non-metallic support part of the frame of front panel 1. Thus, the frame is not a steel basket, but the steel elements are only along the side edges and side parts of the roof. complete the frame. Thus, in the construction according to the invention, the skeleton and the laminate fairing are one part, even if large portions of the laminate are carrier parts. This is required because, for example, in the case of derailment of a vehicle in a tunnel, the vehicle cannot be lifted by the yokes on the roof, but must be lifted in the front lower part by a special jack. And such a load-bearing plastic front face 2 can withstand.

Obviously, the solution according to the invention achieves a lightweight front part and a body of rail 25 which is easy to assemble and which consists of parts which can be easily replaced individually in the event of damage, while at the same time satisfying in terms of stiffness, strength and safety.

The manufacturing method of the front part of the body of the rail vehicle then consists in attaching the lower plastic part 2 of the front part 2 to the inner flange wing 12 of a steel tube 9 which is arranged on the inner side of the pillars 4 of the side parts 3, 3 '. fastening the upper steel frame 6 with the rear flange 7 for attachment to the central part of the vehicle and the side parts 3, 3 'to the outer flange wings 11 of the pipe 9, the inner flange wings 12 of the steel pipe 9 to the pipe 9 fixed in díl 1.

Fiberglass sandwich parts are fully integral and include, in addition to strength functions, a thermal and acoustic insulation function and a car interior trim function. They are integrated with fixtures for interior and exterior equipment, electrical channels, etc.

Claims (5)

PATENT CLAIMS A rail vehicle body front panel comprising side panels (3, 3) with front pillars (4) and a roof panel (5) which are of laminate and an upper frame (6) and a rear flange (7) which are steel, characterized in that it further comprises a lower plastic front panel (2) which is fixed to the inner flange wing (12) of a steel pipe (9) arranged on the inner side 50 columns (4) of the side parts (3, 3), the steel upper frame (6) with the rear flange (7) for fastening the middle part of the vehicle and the side parts (3, 3 ') being fixed to the tube (9) the outer flange wings (11) of the tube (9). - 3 GB 302845 B6 End piece according to claim 1, characterized in that the inner flange wings (12) of the steel tube (9) for fastening the plastic end piece (2) are designed as an inward-facing flange face (1). 5 Front panel according to claim 1, characterized in that the outer flange wings (11) are parallel to the axis of the front panel (1). Front part according to claim 1, characterized in that a groove (17) is provided on the inside of the columns (4) of the side parts (3, 3 '), whose radius corresponds to the radius of the pipe (9). Front panel according to claim 1 or 4, characterized in that a complete inner lining (18) is fastened to the column (4) of the side panel (3 and 3 ') from the inside of the tube (9) of the front panel (1). Method for manufacturing a rail vehicle body panel according to at least one of claims 1 to 5, wherein the side panels are first joined to the front pillar, the roof panel, the upper frame and the rear flange, characterized in that on the inner side of the pillars (4). ) a steel tube (9) is arranged to the side parts (3,3 ') and a lower plastic front panel (2) is fastened to the inner flange wing (12) of the steel tube (9), the upper steel frame (9) being fastened to the tube (9). 6) with rear 20 with a flange (7) for attachment to the central part of the vehicle and the side parts (3, 3 ') are fastened to the outer flange wings (II) of the pipe (9), the inner flange wings (12) of the steel pipe (9) to the pipe ( 9) fasten inwardly the front panel structure (l).