Control rod mounting arrangement for helicopter swashplates

Fluid reaction surfaces (i.e. – impellers) – Sustained ancillary movement of rotary working member – Responsive to fixed actuator

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416168R, 403 67, 403 79, B64C 27605

Patent

active

057854971

ABSTRACT:
A mounting arrangement (60) for coupling a control rod (38) to a stationary swashplate member (32) of a helicopter swashplate assembly (30) wherein the mounting arrangement (60) is characterized by a specially configured stationary swashplate member (32) and a trunnion fitting (62) for mounting in combination therewith. More specifically, the stationary swashplate member (32) includes a horizontal web (74) disposed between an inner ring segment (72.sub.IR) and an outer ring segment (72.sub.OR), wherein the horizontal web (74) includes an aperture (78) and defines a mounting surface (74.sub.S). The trunnion fitting (62) includes a base (64) defining a mounting surface (64.sub.S) and a pair of mounting ears (66) having aligned apertures (66.sub.O). The mounting surface (64.sub.S) of the trunnion fitting (62) engages the mounting surface (74.sub.S) of the horizontal web (74) such that the mounting ears (66) are disposed through the aperture (78) of the horizontal web (74). The mounting arrangement (60) further includes a mounting device (80) for demountably affixing the trunnion fitting (62) in combination with the horizontal web (74) and a coupling device (84), disposed in combination with the aligned apertures (66.sub.O), for coupling the control rod (38) in combination with the trunnion fitting (62).

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patent: 5120195 (1992-06-01), Schmaling et al.

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