1 前言电气化线路的维修养护,长期以来是以人工作业为主的,要实现机械化作业其难点是设备问题,其原因是需要设备多,作业难以定型,不仅如此,还由于铁路的特殊性,作业时间受到限制,合适的重型机械难以应用。随着日本社会人口老龄化和少子化,从事这方面工作的人员呈减少趋势,因此开发易于 1 Preface Maintenance and repair of electrified lines has long been based on manual work. The difficulty of mechanized operation is the equipment problem. The reason is that more equipment is needed and the operation is difficult to finalize. Not only that, but also due to the particularity of the railway, Operating hours are limited and suitable heavy machinery is difficult to apply. With the aging of the population and the declining birth rate in Japan, the number of people working in this area has been declining. Therefore, it is easy to develop