| 摘要 |
PROBLEM TO BE SOLVED: To allow easy assembly and maintenance work for a pitch angle control device 17. SOLUTION: A speed reducer 19 and main and subsidiary motors 24, 58 are externally mounted on one side of a cover 21 encircling a transmitting means 72 for transmitting rotation from the main or subordinate motor 24 or 58 to the speed reducer 19 and on the other side thereof, respectively, therefore allowing easy maintenance work than in the case that these are built in a case. One of parts, when in trouble, is easily exposed and repaired after the speed reducer 19, etc. is simply removed. The maintenance work is thus easily done. COPYRIGHT: (C)2005,JPO&NCIPI |
