Swash plate type variable displacement compressor

A variable displacement type compressor comprising:

• a housing;
• a rotary shaft supported in said housing;
• a swash plate having a through hole through which said rotary shaft is inserted such that said swash plate is adapted to move so that it inclines with respect to said rotary shaft;
• the inner diameter of said through hole being everywhere larger than the outer diameter of at least that portion of said rotary shaft that is located within said through hole;
• a lug plate mounted on said rotary shaft;
• a hinge mechanism located between said lug plate and said swash plate for guiding said inclining movement of said swash plate;
• and
• a piston connected to said swash plate for reciprocating in said housing, said piston serving to draw, compress and discharge a refrigerant gas, wherein the displacement of said refrigerant gas varies with adjustment of the inclined angle of said swash plate;
• wherein said hinge mechanism includes:
• two guide pins, each guide pin having a spherical portion;
• and
• guide holes corresponding to said guide pins, wherein each spherical portion of said guide pin engages with each corresponding guide hole;
• and
• wherein said swash plate is connected through said lug plate to said rotary shaft at two points located on said hinge mechanism and wherein said swash plate contacts said rotary shaft at a single contact point located on the inner periphery of said through hole of said swash plate.