Model helicopter rotor pitch control mechanism

Abstract

A model helicopter rotor pitch control mechanism is provided. The mechanism comprises a seesaw; a stabilizer bar attached to said seesaw; a mixing lever pivotally supported by said stabilizer bar, said mixing lever having a first end and a second end; an upper swash lever to which said first end is connected by way of a rod and a main rotor grip to which said second end is connected by way of said rod

What is claimed is:  
     
         1 . A model helicopter rotor pitch control mechanism comprising a seesaw; a stabilizer bar attached to said seesaw; a mixing lever pivoted to said stabilizer bar, said mixing lever having a first end and a second end; an upper swash lever to which said first end is connected by way of a rod and a main rotor grip to which said second end is connected by way of said rod.  
     
     
         2 . A model helicopter rotor pitch control mechanism comprising an upper swash plate; 
 a washout arm link having a first end and a second end, said first end pivoted in facing relation to said upper swash plate, said upper swash plate perpendicularly crossing said washout arm link at a predetermined position;    a washout arm having a first end and a second end, said first end being pivoted to said second end of the washout arm link;    a mast;    a slide block having an intermediate portion vertically movable relative to said mast, said washout arm being pivoted to said slide block;    a center hub;    a sea-saw swingably provided in said center hub;    a stabilizer bar having opposite ends;    a stabilizer blade attached to said opposite ends of the stabilizer blade;    a Hiller control lever having a first end and a second end, said first end being connected to said stabilizer bar and said second end being connected to said washout arm by way of the rod;    a mixing lever having a first end, an intermediate end and a second end, said first end being swingably connected to said predetermined position, said intermediate position being rotatably pivoted to said stabilizer bar; and    a main rotor grip attached to the second end of said mixing lever by way of the rod swingably relative to said yoke.