TROLLEY WIRE HEIGHT TRACKING DEVICE

• Main Authors: IWAMA YUICHI, SAKAI KOICHI, IIKUNI MOTOHISA, CHIYONOBU TOSHIAKI, KUNUGI AKIMITSU, MUNAKATA HIROSHI
• Format: Patent
• Language: English
• Published: 25.05.1999
• Edition: 6
• Subjects: BODY DETAILS OR KINDS OF RAILWAY VEHICLES; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PERFORMING OPERATIONS; POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES; RAILWAYS; TRANSPORTING; VEHICLES IN GENERAL

PROBLEM TO BE SOLVED: To provide a device by which other measurement can be carried out while maintaining precision of a height measurement value. SOLUTION: A column Q is erected behind a column P, and a liftable frame body (q) is arranged. The upper face of the frame body (q) is positioned while kept apart from a trolley wire, and by means of a measurement device arranged on the upper face, the non-contact condition can be observed. A servomotor is arranged in the column Q, and the frame body (q) is lifted/lowered according to electronic control by means of the servomotor. This control is carried out so that the frame body (q) is set at the same height (h) as a frame body (p) when the frame body (q) reaches the position in which the frame body (P) is positioned at the height (h), and at the same time, a measurement value by means of the frame body (q) can be also recorded.