公开(公告)号：EP3318488A1

公开(公告)日：2018-05-09

申请号：EP17165598.8

申请日：2017-04-07

Applicant: Bell Helicopter Textron Inc.

Inventor： THORNTON, Bob ,  TZENG, Chyau ,  MESING, Brian ,  KNOTT, Kevin ,  WIINIKKA, Mark ,  RICHARD, Edith ,  PLATZ, David ,  EDLER, Joshua ,  VILLANUEVA, Sarah ,  MAST, Thomas ,  LEACHMAN, Joseph ,  BURNS, Daniel John

IPC: B64C27/00 ,  A62B35/00 ,  B64C27/32 ,  B64F5/40

CPC classification number: A62B35/0068 ,  A62B35/0006 ,  A62B35/0043 ,  B64C27/00 ,  B64C27/006 ,  B64C27/322 ,  B64F5/40

Abstract: The present invention includes a safety apparatus and method for protecting users during maintenance operations for a rotorcraft (100) comprising: at least one permanent, semi-permanent, or detachable safety bar, strap (120a, 120b), fastener, hook, or loop that is attached or attachable to a rotorcraft (100), wherein the safety bar, strap (120a, 120b), fastener, hook, or loop is positioned in an area or surface between a windshield of the rotorcraft (100) and a tail boom (108) of the rotorcraft (100) and is connectable to a user safety device to provide fall protection from the area or surface.

Abstract translation: 本发明包括用于在旋翼飞行器（100）的维护操作期间保护使用者的安全装置和方法，该安全装置和方法包括：至少一个永久性，半永久性或可拆卸的安全杆，带（120a，120b），紧固件，钩或环 （100）的挡风玻璃和尾梁（100）之间的区域或表面中，所述安全杆，带（120a，120b），紧固件，钩或环被定位在旋翼飞机 （108），并且可连接到用户安全装置以提供对该区域或表面的防坠落保护。

公开(公告)号：EP3459847A1

公开(公告)日：2019-03-27

申请号：EP17204822.5

申请日：2017-11-30

Applicant: Bell Helicopter Textron Inc.

Inventor： MARSHALL, Bryan ,  WIINIKKA, Mark ,  SHERRILL, Paul ,  STAMPS, Frank

IPC: B64C27/35 ,  B64C27/51 ,  B64C27/54

Abstract: An aircraft rotor assembly (104) has a yoke (110) defining a plurality of bearing pockets (114). Each bearing pocket houses an axisymmetric elastomeric spherical bearing (116) at least partially therein. The axisymmetric elastomeric spherical bearings (116) comprise flap, lead-lag, and pitch hinges for rotor blades (106) coupled thereto. The rotor blades (106) maintain a first in-lane frequency of less than 1/rev through the use of damper assemblies (142) coupled between adjacent blades (106).

公开(公告)号：EP3587257A1

公开(公告)日：2020-01-01

申请号：EP18188732.4

申请日：2018-08-13

Applicant: Bell Helicopter Textron Inc.

Inventor： WIINIKKA, Mark ,  HEMMEN, Scott ,  GREEN, Nathan P. ,  BLAKE, James

IPC: B64C27/00 ,  F16F13/24

Abstract: A strut assembly for a vibration isolation device (204a-204d; 450) is disclosed, comprising a piston spindle (408; 458); a first elastomeric member (412; 462) and a second elastomeric member (414; 464) bonded to the piston spindle (408; 458) and in contact with an upper housing (404; 454) and a lower housing (406; 456), respectively; a first strut support (418; 468) and a second strut support (422; 472) attached to or integral with the upper housing (404; 454) and the lower housing (406; 456), respectively; a first strut spindle (420; 470) and the second strut spindle (424; 474) configured to be placed in the first strut support (418; 468) and the second strut support (422; 472), respectively; and one or more removable struts configured to be engaged to the first strut spindle (420; 470) and to the second strut spindle (424; 474), wherein at least one of the first (420; 470) or second strut spindles (424; 474), is removable such that the one or more struts can be replaced without breaking a bonding of the first elastomeric member (412; 462), the second elastomeric member (414; 464), or both.