To prevent complication of structure and cost rise by eliminating necessity of a high pressure supply passage for chattering prevention and a spring operation valve, and to prevent increase of the number of parts and cost rise by inhibiting buckling and rampage of a coil spring and mounting a guide member for the coil spring without using of a special member.
The compressor unit includes a vane groove 13 formed in a rotor 11, a vane 17 with its base part 15 supported movably by the vane groove 13, a coil spring 23 disposed between a bottom part 21 of the vane groove 13 and the base part 15 of the vane 17 for pressing the vane 17 to a cam surface 9 of a cylinder 7, a guide member 27 fitted to the inner periphery of the coil spring 23 for preventing buckling thereof, and a dent part 25 provided in the base part 15 of the vane 17 enabling insertion of the guide member 27 thereto but disabling insertion of the coil spring 23 thereto.
MAEMURA YOSHINOBU
Iwa Saki Kokuni
Kawamata Sumio
Masakazu Ito
Shunichi Takahashi
Toshio Takamatsu
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