Wheeled vehicle car loading and unloading system and method therefor
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B61D-003/16
B61D-047/00
B65G-067/00
B65J-001/10
출원번호
US-0880273
(1978-02-22)
발명자
/ 주소
Landow Herbert T. (North Tarrytown NY)
출원인 / 주소
Landow Consulting Associates, Inc. (North Tarrytown NY 02)
인용정보
피인용 횟수 :
14인용 특허 :
1
초록▼
Trailers are loaded on and unloaded from railroad flatcars by use of a system including tractors to pull the trailers, an end ramp at the end of the train, and a movable side ramp structure at the side of the train. The movable ramp structure has a ramp and a retractable bridge extending from the to
Trailers are loaded on and unloaded from railroad flatcars by use of a system including tractors to pull the trailers, an end ramp at the end of the train, and a movable side ramp structure at the side of the train. The movable ramp structure has a ramp and a retractable bridge extending from the top of the ramp to the top of a flatcar in the train. In unloading, a tractor drives up the movable ramp and across the bridge to get onto the flatcar. Then the bridge is retracted, the tractor hitches onto one of the trailers, and pulls it along the joined beds of the flatcars and down the end ramp. The tractor then takes the trailer to a storage area, unhitches the trailer, and returns to the movable ramp structure to repeat the process. While the first tractor is pulling the trailer along the tops of the flatcars, the movable ramp structure moves to a position near the next trailer to be unloaded, and extends the bridge again. A second tractor then mounts the movable ramp and repeats the unloading process with the next trailer. Additional tractors can be used in the same way. This greatly speeds the unloading process, since the next tractor need not wait to go to work until the previous trailer has been unloaded. The loading operation is substantially the reverse of the unloading operation. The bridge of the ramp structure preferably includes power-operated telescoping arms and hinged plates forming a roadway. The arms can be positioned in four different arrangements to form roadways extending in four different directions, thus enabling the loading and unloading of tractors in any of the four directions.
대표청구항▼
A system for loading and unloading wheeled vehicles on a train of railroad cars, said system comprising, in combination, a first ramp at one end of said train, a side ramp device along side of and extending between said train and ground, means for forming said cars into a train-top roadway, a plural
A system for loading and unloading wheeled vehicles on a train of railroad cars, said system comprising, in combination, a first ramp at one end of said train, a side ramp device along side of and extending between said train and ground, means for forming said cars into a train-top roadway, a plurality of tractors for pulling said wheeled vehicles, and a roadway on the ground for tractors to travel between said ramps, and means for moving said side ramp device and said cars of said train relative to one another to position said side ramp device adjacent another one of said cars. A method of loading and unloading trailers on a train of railroad cars, said method comprising the steps of sideloading a tractor by means of a first ramp at the side of said train, endloading a combination of said tractor and a first one of said trailers by means of a second ramp at one end of said train, moving said first ramp and said cars of said train relative to one another to position said first ramp adjacent another one of said cars, and repeating said sideloading and endloading steps for another one of said trailers.
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이 특허에 인용된 특허 (1)
Landow ; Herbert T., Wheeled ramp loading and unloading apparatus.
Kealey Thomas F. (Chicago IL) Wicks Harry O. (El Paso TX) Christen Gary D. (Merrillville IN) Jones Richard L. (Bloomingdale IL) Combs Kenneth E. (Homewood IL), Ramp system for assembling and disassembling highway trailers and railtrucks for intermodal transportation.
Miller, Douglas J.; Parry, Alan O.; Leung, Philip C.; Venslovaitis, Ed; Webster, Earl; Lefebvre, Dan; Tien, Hao, System and method for rail transport of trailers.
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