摘要 |
PROBLEM TO BE SOLVED: To provide a link device capable of driving a change-over door having a wide operation scope. SOLUTION: In an air conditioning unit, the air passing through an evaporator operates the air mix change-over door 10 by driving the link device 20. The link device 20 is provided with a driving arm body 21 arranged turnably by a servo motor 9 and a driven plate 31 turning by following turn of the driving arm body 21. The driving arm body 21 is provided with driving pins 24 at tips of a plurality of arm parts 22. The driven plate 31 forms a plurality of engaging channels 33 provided with a channel part 34 for turn formed along a turn shaft 32 from an outer peripheral fringe part or a channel part 35 for idling extended like the same circular arc as turn locus of the driving pin 24 from a part of the channel part 34 for turn. When the first driving pin 24 is engaged with the first engaging channel 33 to turn the driven plate 31, the next driving pin 24 is engaged with the next engaging channel 33 sequentially to rotate the driven plate 31 continuously. COPYRIGHT: (C)2004,JPO&NCIPI
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