PROBLEM TO BE SOLVED: To provide a pitch change mechanism which can be further miniaturized and a variable pitch type rotary vane mechanism including such a pitch change mechanism.SOLUTION: A pitch change mechanism 30 includes: a drive section 31 which outputs rotary driving force to the vicinity of an extension line of a rotary shaft 20a of a rotary vane 10; a straight moving member 32 which receives the rotary driving force by the drive section 31 and moves straight coaxially with the rotary shaft 20a; and an arm member 33 which has one end connected to a blade 11 at a position apart in at least a width direction from a pitch shaft 11a intersecting a width direction of the blade 11 and the other end connected to the straight moving member 32, rotates the blade 11 around the pitch shaft 11a by receiving the straight movement of the straight moving member 32, and changes a pitch.SELECTED DRAWING: Figure 3
【課題】一層の小型化が可能なピッチ変更機構、及び、そのようなピッチ変更機構を備えた可変ピッチ型回転翼機構を提供する。【解決手段】ピッチ変更機構30が、回転翼10の回転軸20aの延長線の近傍へと回転駆動力を出力する駆動部31と、駆動部31による回転駆動力を受けて、回転軸20aと同軸上を直進移動する直進部材32と、ブレード11の幅方向と交差するピッチ軸11aから少なくとも幅方向に離れた位置でブレード11に一端が連結されるとともに、他端が直進部材32に連結され、直進部材32の直進移動を受けてブレード11をピッチ軸11a回りに回転させてピッチを変更するアーム部材33と、を備えたことを特徴とする。【選択図】図3
PITCH CHANGE MECHANISM AND VARIABLE PITCH TYPE ROTARY VANE MECHANISM
ピッチ変更機構及び可変ピッチ型回転翼機構
2018-04-05
Patent
Elektronische Ressource
Japanisch
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