| 摘要 |
A drive controlling apparatus for a rotary window cleaner comprises an elevating motor 5 for moving up and down two wipers 2, 3 between a storage position and a start position, wiper motor means which may comprise a first motor 6 for rotating the first wiper 2 at the start position and a second motor 7 for rotating the second wiper 3 at the start position in a direction opposed to that of the first wiper, and an electronic control circuit (38) to which the brush board of each motor is connected so as to perform the upward and downward movement, intermittent operation, medium-speed operation and high-speed operation. The electronic control circuit (38) is capable of controlling the two wipers so as to rotate one wiper after a predetermined time from rotation of the other wiper and stop each wiper at the start position for a predetermined time every one rotation of the two wipers and so as to rotate the two wipers with a lag angle formed therebetween in the opposed directions so as not to interfere with each other in the medium-speed and high-speed operations.
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