METHOD FOR MANUFACTURING INTEGRALLY-VULCANIZED TRACK PAD WITH STEEL PLATE OR SYNTHETIC RESIN PLATE, AND THE TRACK PAD WITH GROOVES ON BOTH SIDES

• Main Authors: YAMANE HIROSHI, WAKATSUKI OSAMU, SHIODA HIDEO, KOBUMI YOSHIHIRO, IWASA YUICHI, MITAMURA HIDEO
• Format: Patent
• Language: English
• Published: 24.02.2011
• Subjects: CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; FIXED CONSTRUCTIONS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS; PERMANENT WAY; PERMANENT-WAY TOOLS

PROBLEM TO BE SOLVED: To provide a method for manufacturing an integrally-vulcanized track pad with a steel plate or a synthetic resin plate, which prevents a rubber pad body and the steel plate or the synthetic resin plate, joined together, from being separated from each other and which enables the sliding of a rail in the expansion/contraction of the rail; and to provide the track pad with grooves on both sides. SOLUTION: This method for manufacturing the track pad includes: a step of infilling a rubber material with a length of 2 m into one mold 11 having a lower groove forming protrusion 15 formed on a bottom; a step of setting upper groove forming rod members 23 and 33 in the predetermined position of the one mold; a step of placing the thin plate-like steel plate 5 or the synthetic resin plate, coated with an adhesive, on the top surface of the infilled rubber material; a step of integrating the rubber pad body 2 with the steel plate 5 or the synthetic resin plate by applying predetermined pressure and predetermined temperature and performing vulcanized compression molding, after combining one mold and the other mold 12 together; a step of pulling out the upper groove forming rod member from the one mold after a lapse of predetermined time; and a step of taking out the integrated integrally-vulcanized track pad 1 with the steel plate or the synthetic resin plate by opening the other mold. COPYRIGHT: (C)2011,JPO&INPIT