ASSEMBLY CONSISTING OF DEVICE FOR OSCILLATING ON BELL CRANK FORK, VARIABLE PITCH COMMUTATOR CONTROL SYSTEM EQUIPPED THEREWITH, AND AIRCRAFT ENGINE PROVIDED THEREWITH

摘要

PROBLEM TO BE SOLVED: To provide an assembly with a fixed fork 10, applicable to a bell crank for transmitting the motion of an aircraft engine.

SOLUTION: Lugs 22, 30 of the fork 10 support a rod 60. A spherical ball 46 is inserted onto the rod 60, and a cage 44 and a support 42 of a component movable in relation to rotation have oscillating motion around the spherical ball 46. The fork securely holds the spherical ball 46 at a position in the axial and angular directions while particularly using a tight fit A3 which is arranged at the end of the rod and inconveniently protruded therefrom for replacing a conventional screw and nut system. A pair of planar facets (including 23) opposing and abutting on each other execute the fixation of one of components of the assembly being rotated.

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