Claims (2)
1. Donji okvir željezničkog vagona, posebno vagona cisterne, gdje donji okvir željezničkog vagona sadrži dva krajnja dijela (1) donjeg okvira međusobno povezana sa centralnim dijelom (2), gdje centralni dio (2) ima dvije uzajamno paralelne noseće grede (3) koje su spojene poprečnim šipkama (4), dok se na svakom krajnjem dijelu (1) donjeg okvira nalazi spojnica (5) u vidu dva paralelna kutna profila (8) pokrivena gornjom prirubnicom (15) spojnice (5), odbojnom gredom (6) u obliku C-presjeka koja je pričvršćena na jednom kraju spojnice (5) i nosačem (7) sa konstrukcijom u obliku kutije formiranom od dvije paralelne mreže koje se pričvršćuju na drugom kraju spojnice (5), pri čemu nosač (7) ima dvije trake različitih visina, unutrašnju (10) i vanjsku (11), koje su u centralnom dijelu (2) šipke spojene zidovima (12) koji su simetrični u odnosu na uzdužnu os donjeg okvira, pri čemu je nosač (7) zatvoren sa gornje strane donjom prirubnicom (13) nosača karoserije i gornjom prirubnicom (15) nosača karoserije, izrađenim od limova, dok je gornja prirubnica (15) nosača karoserije nošena od strane gornjih rubova unutrašnje trake (10) i vanjske trake (11), a oblik poprečnog presjeka nosača (7) je sličan rastegnutom latiničnom slovu "Z".1. The lower frame of a railway wagon, especially a tank wagon, where the lower frame of the railway wagon contains two end parts (1) of the lower frame interconnected with a central part (2), where the central part (2) has two mutually parallel supporting beams (3) which are connected by transverse rods (4), while on each end part (1) of the lower frame there is a connector (5) in the form of two parallel corner profiles (8) covered by the upper flange (15) of the connector (5), a shock beam (6) in in the form of a C-section which is attached at one end of the coupling (5) and a support (7) with a box-shaped construction formed by two parallel networks that are attached at the other end of the coupling (5), whereby the support (7) has two strips of different height, inner (10) and outer (11), which in the central part (2) of the rod are connected by walls (12) which are symmetrical in relation to the longitudinal axis of the lower frame, while the support (7) is closed on the upper side by the lower flange (13) body support and upper flange (15) nos of the body, made of sheets, while the upper flange (15) of the body support is carried by the upper edges of the inner strip (10) and the outer strip (11), and the shape of the cross section of the support (7) is similar to the stretched Latin letter "Z".
2. Donji okvir prema zahtjevu 1, naznačen time, što unutrašnja mreža (10), koja je sadržana u nosaču (7) sa strane centralnog dijela (2) donjeg okvira, ima visinu jednaku visini centralnog dijela (2) donjeg okvira, i što je visina unutrašnje mreže (10) manja od visine vanjske mreže (11) koja je obuhvaćena nosačem (7) sa strane spojnice (5) i ima visinu koja je jednaka visini spojnice (5).2. The lower frame according to claim 1, characterized in that the inner net (10), which is contained in the support (7) on the side of the central part (2) of the lower frame, has a height equal to the height of the central part (2) of the lower frame, and that the height of the inner mesh (10) is smaller than the height of the outer mesh (11), which is covered by the support (7) on the side of the connector (5) and has a height equal to the height of the connector (5).