| 摘要 |
PROBLEM TO BE SOLVED: To provide a link mechanism 30 for driving dampers 26-28 of a vehicular air-conditioner 1 which is capable of reducing the labor required for the trial manufacture, facilitating the temperature control during the molding, and reducing the manufacturing cost by suppressing any irregular shrinkage during the cool-hardening when molding a drive side link member 33 for distributing the driving force to a plurality of driven side link members 34-36. SOLUTION: The contour of a drive side link member 33 is substantially truly circular. Three cam grooves 33c-33e formed in a range relatively close to the outer circumference on its one side face are arranged in the circumferential direction as uniformly as possible, and the overlapαor the like of the adjacent cam grooves to each other is below a predetermined value. Any of the cam grooves 33c-33e is not a through groove. Through voids such as round holes 33a, 33b and a through hole 33f are formed only in a range relatively close to the inner circumference. COPYRIGHT: (C)2007,JPO&INPIT
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