MAIN ROTOR BRAKE STICK Russian patent published in 2018 - IPC B64C27/00 B60T7/10 

FIELD: aircraft engineering.

SUBSTANCE: invention relates to aeronautical engineering, in particular to the helicopter rotor controls. Main rotor brake stick comprises control lever (8) provided with handle (11) and fixed in body (1), in which are arranged gear sector (3), shaft (5) and axis (7) with two-arm lever (16) of the actuator fixed to it. On axis (7) there is base (9), on which control lever (8) and additional lever (10) are fixed. To regulate the values of the control force, a compensation mechanism is introduced into the device in the form of arms (21, 22), which are connected via thrust (23, 24). As lever (8) moves upward, base (9) starts to scroll around axis (7), transferring the movement of thrust (23), which rotates arms (21, 22) to the shaft (5), thereby transferring the movement to thrust (24), which by the other end affects on lever (16). Then lever (16) turns and pulls cable (17). In this case, the blocks are pressed against the brake drum.

EFFECT: reduces the force value applied to the control, reduces the physical load of the pilot, improves the ergonomic characteristics of the device.

1 cl, 1 tbl, 5 dwg