A magnetic sensor-type antenna comprising a magnetic core and a coil wound around the magnetic core for receiving electromagnetic waves, which is disposed in a housing such that the end portion of the magnetic core is bent away from the housing or a metal portion of the housing, and a timepiece, a keyless entry system and an RFID system each comprising such an antenna. Specifically, the present invention relates to a process for maintaining railcars within a facility wherein the facility has an inbound track, an outbound track, and a plurality of maintenance stations for moving a railcar in and out of the facility and for repairing, cleaning, or painting the same. By manipulating a first operating device, the first master carrier is moved toward the second end of the head rail to open the space underneath the first end, and by manipulating a second operating device, the second master carrier moved toward the first end of the head rail to open the space underneath the second end. , and processes thereof are convenient. Transition animations can be provided for clarifying operations such as activating and dismissing the index sheet.