COMBINATION STRUCTURE OF STRUCTURE FOR RAILROAD CARS AND RAILROAD CARS USING THE SAME

摘要

The present invention relates to a slot-combined structure of a railroad car structure, and a railroad car equipped with the same. A first railroad car structure and a second railroad car structure are combined together by enabling a combining protrusion forming one side of the second railroad car structure to be inserted into a combining groove forming one side of the first railroad car structure. The combining groove has three closed surfaces and is extended in the lengthwise direction where the first railroad car structure is extruded. The combining protrusion is extended in the lengthwise direction where the second railroad car structure is extruded. The combining protrusion needs to be moved in an insertion direction into the combining groove or in the opposite direction in order to be separated from the combining groove. At least one of the first railroad car structure and the second railroad car structure is made of a composite material. The combining structure of the present invention enables secure combination, facilitates combining work of railroad car structures, and improving the modification and maintenance of a railroad car.