EP0347334A1 - Articulated multiple-unit rail vehicle - Google Patents

Abstract

The invention relates to the railway industry. Articulated multiple-unit rail vehicle, characterised in that the pivot (8) of the bogey (6) on the wagon body is situated at a certain distance d from the adjacent pivot (4) of the wagon body (2), and not at right angles to the inter-wagon gap (10). The invention makes it possible to give the vehicles forming part of a multiple unit a maximum width for a given structure gauge. <IMAGE>

Description

The invention relates to a railway vehicle for an articulated train, comprising, in a conventional manner, a body supported by a single bogie by means of a single bogie pivot, a body articulation pivot being provided to articulate the body with a nearby cash register.

The invention relates more specifically to the question of the passage in size of such vehicles integrated in an articulated train.

By French patent N ° 72 04 153 filed on February 8, 1972 in the name of "British Railways Board", a solution was proposed allowing, for a given width of gauge, to widen as much as possible the external transverse dimension of the boxes of an articulated train.

The solution consisted, for bogies placed under the intercirculation of two contiguous boxes, to transfer in a curve the bogie pivot towards the outside of the curve thanks to the use of a longitudinal beam carried by the bogie considered, pivoting on the latter and articulated on the other hand under the chassis of each of the contiguous bodies at a suitable distance from the bogie pivot so as to swing laterally in a curve the penetrations in the passageway of the outer end of the body, on the one hand, and of the interior body medium on the other hand, as occurs on non-articulated vehicles each supported by two bogies.

The object of the present invention is to propose a different solution while pursuing the same objective. tif which is to give vehicles forming part of an articulated train a maximum width for a given gauge of obstacles.

The solution proposed by this patent is to rotate the body on a bogie not placed directly above the interlayer but to place the bogie at a certain distance from the interlayer so as to balance the penetrations of the body in the passage corridor on the outer end of the body and on the interior body of the body.

More specifically, the invention proposes a rail vehicle of the aforementioned type at the head of this specification, characterized in that the bogie pivot is located at a distance from the articulation pivot such that the outer body ends, on the one hand, and the interior midpoints of the body, on the other hand, are spaced in a curve substantially equal from the middle of the track at the locations considered.

As is customary, the body articulation pivot is substantially at right or in the immediate vicinity of the intercasse.

• La figure 1 montre schématiquement en élévation trois caisses successives classiques d'une rame articulée à laquelle s'applique l'invention.
• La figure 2 montre schématiquement trois caisses successives en élévation et la position du bogie selon l'invention.
• La figure 3 montre également de manière schématique, dans une vue en plan, les pénétrations dans le couloir de passage tant en extrémité qu'en milieu de caisse.

Other characteristics or advantages of the invention will emerge from the following description of an embodiment. Reference is made to the appended drawings on which:

• Figure 1 shows schematically in elevation three successive conventional boxes of an articulated train to which the invention applies.
• Figure 2 schematically shows three successive boxes in elevation and the position of the bogie according to the invention.
• FIG. 3 also schematically shows, in a plan view, the penetrations in the passage corridor both at the end and in the middle of the body.

Each of the boxes 2 is articulated on the neighboring box by a pivot 4 to form an articulated train. In an articulated train of the conventional type (Figure 1) each box 2 is supported at its ends by a bogie 6, the pivot 8 of which is situated vertical to the pivot 4 around which two contiguous boxes 2 of the train are hinged in the region of the intercess 10.

On the contrary, according to the invention, each box 2 is supported by a bogie 6 whose pivot 8 is located, not at the level of the interlayer 10, but at a distance d from the pivot 4 of the box (fig. 2 and 3).

The distance d is chosen so that, in a curve (see FIG. 3), the outer ends of the body 14, on the one hand, and the interior midpoints of the body 16, on the other hand, deviate substantially equally from the median vertical surface, or mediating "plane", 18 of the track.

In practice, the distance d can be of the order of 10 to 25% of the length L of a box.

Claims (3)

1. Railway vehicle for articulated train, comprising a body (2) supported by a single bogie (6) by means of a single bogie pivot (8), a hinge pivot (4) being provided for articulate the body (2) with an adjacent body,
characterized in that the bogie pivot (8) is located at a distance ( d ) from the articulation pivot (4) such that the outer ends (14) of the body, on the one hand, and the interior media (16) body, on the other hand, are spaced in a substantially equal curve from the middle (18) of the track at the locations considered. 2. Vehicle according to claim 1, characterized in that the pivot (4) of body hinge is substantially at the right or in the immediate vicinity of the intercasse (10). 3. Vehicle according to any one of claims 1 or 2, characterized in that said distance ( d ) is of the order of 10 to 25% of the length (L) of the body (2).

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