公开(公告)号：JP2001122195A

公开(公告)日：2001-05-08

申请号：JP2000293303

申请日：2000-09-27

Applicant: BELL HELICOPTER TEXTRON INC

Inventor： BRACK ROBERT ARNOLD ,  POWELL ERNEST ALFRED ,  REDDY DHARAM JITHENDER ,  RICE RONALD DEAN ,  TISDALE PATRICK RYAN

IPC: B64C27/35 ,  B64C27/33 ,  B64C27/46

Abstract: PROBLEM TO BE SOLVED: To prevent exfoliation between layers in middle faces of a bent member made of composite material such as a yoke of a main rotor of a helicoputer comprising laminated composite material to increase its strength and fatigue life. SOLUTION: An exposed edge surface 24 of the bent member made of the composite material is provided with edge members 51, 53. Each of the edge members 51, 53 includes an innermost layer 57 mounted on the edge surface 24, an outermost layer 59 mounted on the innermost layer 57, and plural internal layers 55 disposed between the innermost layer 57 and the outermost layer 59.

公开(公告)号：DE1088754T1

公开(公告)日：2001-10-11

申请号：DE00203352

申请日：2000-09-27

Applicant: BELL HELICOPTER TEXTRON INC

Inventor： BRACK ROBERT ARNOLD ,  POWELL ERNEST ALFRED ,  REDDY DHARAM JITHENDER ,  RICE RONALD DEAN ,  TISDALE PATRICK RYAN

IPC: B64C27/35 ,  B64C27/33 ,  B64C27/46

Abstract: The protective edge member (51, 53) for use on a composite flexure, such as a helicopter main rotor yoke (11), having an exposed edge surface (24), comprises an innermost composite ply (57) attached to the exposed edge surface (24), an outermost composite ply (59) attached to the innermost composite ply (57); and at least one interior composite ply (55) disposed between the innermost composite ply (57) and the outermost composite ply (59).

公开(公告)号：CA2320606C

公开(公告)日：2009-02-24

申请号：CA2320606

申请日：2000-09-26

Applicant: BELL HELICOPTER TEXTRON INC

Inventor： REDDY DHARAM JITHENDER ,  POWELL ERNEST ALFRED ,  BRACK ROBERT ARNOLD ,  TISDALE PATRICK RYAN ,  RICE RONALD DEAN

IPC: B64C27/32 ,  B64C27/35 ,  B64C27/33 ,  B64C27/46

Abstract: The protective edge member (51, 53) for use on a composite flexure, such as a helicopter main rotor yoke (11), having an exposed edge surface (24), comprises an innermost composite ply (57) attached to the exposed edge surface (24), an outermost composite ply (59) attached to the innermost composite ply (57); and at least one interior composite ply (55) disposed between the innermost composite ply (57) and the outermost composite ply (59).

公开(公告)号：CA2320606A1

公开(公告)日：2001-03-28

申请号：CA2320606

申请日：2000-09-26

Applicant: BELL HELICOPTER TEXTRON INC

Inventor： TISDALE PATRICK RYAN ,  REDDY DHARAM JITHENDER ,  RICE RONALD DEAN ,  BRACK ROBERT ARNOLD ,  POWELL ERNEST ALFRED

IPC: B64C27/35 ,  B64C27/33 ,  B64C27/46 ,  B64C27/32

Abstract: The protective edge member (51, 53) for use on a composite flexure, such as a helicopter main rotor yoke (11), having an exposed edge surface (24), comprises an innermost composite ply (57) attached to the exposed edge surface (24), an outermost composite ply (59) attached to the innermost composite ply (57); and at least one interior composite ply (55) disposed between the innermost composite ply (57) and the outermost composite ply (59).

公开(公告)号：DE60001784T2

公开(公告)日：2003-12-04

申请号：DE60001784

申请日：2000-09-27

Applicant: BELL HELICOPTER TEXTRON INC

Inventor： BRACK ROBERT ARNOLD ,  POWELL ERNEST ALFRED ,  REDDY DHARAM JITHENDER ,  RICE RONALD DEAN ,  TISDALE PATRICK RYAN

IPC: B64C27/35 ,  B64C27/33 ,  B64C27/46

Abstract: The protective edge member (51, 53) for use on a composite flexure, such as a helicopter main rotor yoke (11), having an exposed edge surface (24), comprises an innermost composite ply (57) attached to the exposed edge surface (24), an outermost composite ply (59) attached to the innermost composite ply (57); and at least one interior composite ply (55) disposed between the innermost composite ply (57) and the outermost composite ply (59).

公开(公告)号：DE60001784D1

公开(公告)日：2003-04-30

申请号：DE60001784

申请日：2000-09-27

Applicant: BELL HELICOPTER TEXTRON INC

Inventor： BRACK ROBERT ARNOLD ,  POWELL ERNEST ALFRED ,  REDDY DHARAM JITHENDER ,  RICE RONALD DEAN ,  TISDALE PATRICK RYAN

IPC: B64C27/35 ,  B64C27/33 ,  B64C27/46

Abstract: The protective edge member (51, 53) for use on a composite flexure, such as a helicopter main rotor yoke (11), having an exposed edge surface (24), comprises an innermost composite ply (57) attached to the exposed edge surface (24), an outermost composite ply (59) attached to the innermost composite ply (57); and at least one interior composite ply (55) disposed between the innermost composite ply (57) and the outermost composite ply (59).