| 摘要 |
<p>PROBLEM TO BE SOLVED: To record the time and the number of times of operations for respective beds and to perform maintenance and inspections at the time of reaching the prescribed time and number of times, respectively. SOLUTION: Energizing time to a motor 6 for lifing the back, a motor 7 for lifting the knee and a motor 8 for elevating and lowering a floor part is measured based on a reference time generation means 9, the operation time of each motor is integrated from the energizing time, the number of times of the operations is integrated from the number of times of energizing and the integrated data are stored in a nonvolatile memory cell 3. Further, the other information, the information of the interruption of the operation by overloads and the stoppage of the operation by the failure of the motors 6-8 or that of a controller 1, etc., for instance, can be recorded. The history data of motor-driven operations are transferred from a serial interface 10 to external recording display device and measurement device.</p> |
