Patent ID: 6220178
Filing Date: 2001-04-24
Classification: B60J,B61D

Abstract:
Comprising:an undercarriage (3);a running carriage (2) connected to said undercarriage (3);a container (5) connected to said undercarriage (3);said container (5) comprising sidewalls, positioned in a longitudinal direction of said freight car, and closed end walls (6) extending transversely to said sidewalls at opposite ends of said freight car;said sidewalls having lateral posts (7) and longitudinal supports (8) connecting said end walls (6) and said lateral posts (7);at least one of said sidewalls having a closable opening for loading and unloading goods to be transported in said freight car;wherein said at least one opening extends over the entire length of said sidewall;wherein said at least one sidewall comprises at least one pair of folding doors (11, 12; 13, 14; 32, 33; 34, 35) arranged in a common vertical plane for closing said opening in a closed position of said folding doors,wherein each one of said folding doors (10, 11, 12, 13, 32, 33; 34, 35) of said pair has a horizontal pivot axle (14, 15);wherein said horizontal pivot axle (14) of a first one of said folding doors (10, 11, 12; 13, 32, 33; 34, 35) of said pair is provided at said undercarriage (3) and said first folding door (10, 11, 12; 13, 32, 33; 34, 35) covers a lower part of said sidewall;wherein said horizontal pivot axle (15) of a second one of said folding doors (10, 11, 12; 13, 32; 34, 35) of said pair is provided in the vicinity of said longitudinal support (8) and said second folding door (10, 11, 12; 13, 32, 33; 34, 35) covers an upper part of said sidewall; anda coupling device connecting said first and second folding doors (10, 11, 12; 13, 32, 33; 34, 35), wherein said coupling device comprises a chain drive having a chain (18) and a first chain gear (16) and a second chain gear (27), wherein said chain (28) is guided about said first and second chain gears (26, 27) in a figure eight arrangement, wherein said first folding door (11; 13; 33; 35) has a first pivot shaft (19, 20) defining said horizontal pivot axle (14) and wherein said second folding door (10; 12; 32; 34) has a second pivot shaft (21, 22) defining said horizontal pivot axle (15), wherein said first chain gear (26) is connected to an end of said first pivot shaft (19, 20) and said second chain gear (27) is connected to an end of said second pivot shaft (21, 22), wherein said first folding door (11, 13, 33, 35) has a smaller height and a lower weight than said second folding door (10, 12, 32, 34).