| 摘要 |
PROBLEM TO BE SOLVED: To provide a valve driving device improved in rigidity without causing enlargement of a constitution. SOLUTION: A shaft valve 40 is installed between an intermediate gear 21 and a final gear 25. A support part 35 of a housing 11 for supporting the shaft valve 40 is disposed between a bearing part 31 of the intermediate gear 21 and a bearing part 33 of the final gear 25. The wall thickness of the housing 11 is secured near the bearing part 31 and the bearing part 33 to form the bearing part 31 and the bearing part 33 for supporting a shaft 22 or a shaft 26. The wall thickness of the housing 11 is thereby easily secured in the support part 35 of the shaft valve 40. As a result, the rigidity of the housing 11 is improved in the support part 35 of the shaft valve 40 without enlarging the housing 11. COPYRIGHT: (C)2007,JPO&INPIT
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