| 摘要 |
PURPOSE:To elevate a cage comfortably by correcting an objective speed basic pattern in compliance with the oil pressure value and temperature value of a pressurized oil measured by a pressure sensor and an oil temperature sensor respectively. CONSTITUTION:When the rated speed of a specific objective speed basic pattern is corrected based on a pressure value and a temperature value coming from a pressure sensor 14 and an oil temperature sensor 15, a rated speed reference is found out by a rated speed reference drawing up means while referring to the rated speed reference from the table a rated speed reference memory means in which the most suitable rated of speed reference under that temperature and pressure condition is stored in advance per pressure and temperature of a pressurized oil. The objective speed reference pattern is corrected based on this rated speed reference. Thereby, a hydraulic elevator can always run in a proper speed pattern, even if the oil temperature and load pressure are changed and a cage 1 can be elevated comfortably. |
