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公开(公告)号：EP1841645B1
公开(公告)日：2009-11-04
申请号：EP06733833.5
申请日：2006-01-24
Applicant: Bell Helicopter Textron Inc.
Inventor： STAMPS, Frank B. , TISDALE, Patrick R. , BRASWELL, James L. , BASKIN, Charles L., Jr. , CAMPBELL, Tom , LEDBETTER, Timothy K. , ZIERER, Joseph J. , REDDY, D.J. , WIINIKKA, Mark A. , MARTIN, Ronnie L. , HAYNIE, David A. , SADLER, Stanley Gene , MEASOM, Ron , OLDROYD, Paul , HIROS, Tricia , HARSE, Jim , MULLINS, Bob
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公开(公告)号：EP1841645A2
公开(公告)日：2007-10-10
申请号：EP06733833.5
申请日：2006-01-24
Applicant: Bell Helicopter Textron Inc.
Inventor： STAMPS, Frank B. , TISDALE, Patrick R. , BRASWELL, James L. , BASKIN, Charles L., Jr. , CAMPBELL, Tom , LEDBETTER, Timothy K. , ZIERER, Joseph J. , REDDY, D.J. , WIINIKKA, Mark A. , MARTIN, Ronnie L. , HAYNIE, David A. , SADLER, Stanley Gene , MEASOM, Ron , OLDROYD, Paul , HIROS, Tricia , HARSE, Jim , MULLINS, Bob
Abstract: An assembly for providing flexure to a blade of a rotary blade system, the assembly including an upper support plate (22) having an upper curved surface (37) , a lower support plate (24) having a lower curved surface (37) , and a yoke (120) positioned therebetween. At least one of the upper and lower yoke surfaces (37) having a layer of cushioning material (56) positioned thereon and secured thereto. The layer of cushioning material (56) extending along and following the general contour of yoke surface (37) , and the layer of cushioning material (56) directly contacting a support plate (22,24) . Another embodiment is an assembly for providing flexure to a blade of a rotary blade system, including, an upper support plate (22) having an upper curved surface (27) , a lower support plate (24) having a lower curved surface (37) , and a yoke (120) positioned therebetween and directly contacting the support plates wherein one of the curved surfaces (37) is a non-circular arc that does not form part of the circumference of a circle.
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