Railway rolling stock – Trains – Articulated
Patent
1998-01-27
1999-08-31
Le, Mark T.
Railway rolling stock
Trains
Articulated
213 17, 213 1R, B61D 4900
Patent
active
059439580
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to a vehicle, in particular a rail vehicle, formed of at least two vehicle sections connected with each other in an articulated manner, between which there is a gap of a size to account for the relative movements when traveling through curves as well as through dips or respectively over hills, wherein at least one line for electrical current, air and hydraulic fluid extending, for example, in the top area, is associated with the vehicle sections, which has a line section for compensating the relative movements of the vehicle sections.
In known vehicles with the above mentioned features, the line section compensating the relative movements of the vehicle sections is designed as an approximately semicircular arc which either projects downward into the gap between the vehicle sections (DE-PS 237 458), or extends, pointing upward in the top area of the vehicle, over the gap (DE-GM 1 793 336; the magazine ZEV + DET Glasers Annalen 1995, No. 3, page 81, FIG. 1, and page 82, FIG. 2). With both arrangements it is necessary to maintain a minimum radius for the line section, which makes damage to the line section--for example kinks in a thicker cable--impossible in connection with any relative movements of the vehicle sections. This minimum radius can result in having to make the gap between the vehicle sections greater than necessary for the curve travel and the dip and hill travel per se. The entire vehicle becomes longer because of this, but without offering an increase in the passenger compartment. The arrangement, where the line section points upward above the vehicle top, is also considered to be unfavorable for visual and aerodynamic reasons.
SUMMARY OF THE INVENTION
It is the object of the invention to embody a vehicle of the type in accordance with the species in a simple manner in such a way that a shorter gap can be realized for the vehicle sections, wherein it is intended to protect the elastic line section against damage and to achieve a visually as well aerodynamically advantageous design.
This object is attained in accordance with the invention in that the gap between the vehicle sections is spanned by a sleeve which encloses the line and is connected with it in a shear-resistant manner, wherein the line section compensating the relative movements of the vehicle sections extends outside the sleeve in a horizontal arrangement.
In order to be able to easily compensate twisting between the vehicle sections, in an embodiment of the invention the sleeve is made of an elastic material, for example caoutchouc or PVC.
In accordance with the next embodiment of the invention, it is provided that the sleeve is fastened on the one vehicle section and is slidingly guided in respect to the other vehicle section (fixed seating and movable seating). Therefore the sleeve can only move toward one vehicle section so that, on the one hand, fastening of the sleeve in the immediate vicinity of the gap is possible and, on the other hand, the length of the slidingly guided side can be increased.
An alternative embodiment of the invention, particularly advantageous with lines of considerable diameter, resides in that the sleeve is slidingly guided in respect to both vehicle sections (two movable seatings), wherein respectively one horizontal line section compensating the relative movements of the vehicle sections adjoins both ends of the sleeve.
In regard to the longest possible wear-free use, it is provided in a further development of the invention that the sleeve has a friction-reducing coating corresponding to the length of its slide path, and/or the vehicle section has one in the area of the sliding guidance.
If it is intended to guide several lines over the gap, it is recommended in the sense of an integration to design the cross section of the sleeve oval in accordance with a supplement to the invention. A vertical strip extending in the interior of the sleeve is offered as a stiffening against bending for such a sleeve, which in particular is made of an elastic mate
REFERENCES:
patent: 1856455 (1932-05-01), Banks et al.
patent: 3868909 (1975-03-01), Pelabon
patent: 4794867 (1989-01-01), Titz
"RegioSprinter--der neue Uerdinger Dieselleichttriebzug in Niederflurbauweise fuer den Regionalverkehr", ZEV+DEt Glasers Annalen 1995, Nr. 3 Maerz, p. 81, Fig. 1; p. 82, Fig. 2. Date Mar. 1995.
Hofmann Lothar
Ippers Reinhold
Mayer Felix
Schmidt Oswald
Thauer Dietmar
Duewag Aktiengesellschaft
Le Mark T.
Striker Michael J.
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