| 摘要 |
PROBLEM TO BE SOLVED: To provide an opening and closing system having an improved reliability and good operability. SOLUTION: This opening and closing system provided with an electric operation mode limited by an operation limit position designated by predetermined operation limit information is equipped with an operation limit position changing means which changes the contents of the stored operation limit information, a first reliability judging means performing the inspection of the reliability of the operation limit information, and an availability control means executing the opening and closing operation by using the predetermined operation mode having a higher availability by comparing to an electric operation mode normally used after the first reliability judging means judges that the reliability of the operation limit information is found to be low. |
